111 pubblicazioni classificate nel seguente modo:

Investigating the Semi-Permeable Membrane Behavior of Geosynthetic Clay Liners by Means of a Novel Apparatus
MINERALS
Autore/i: Bernardo, D.; Mazzieri, F.; Di Sante, M.; Fratalocchi, E.
Classificazione: 1 Contributo su Rivista
Abstract: The paper presents a recently developed rigid-wall diffusion cell and the experimental setup that allows the determination of the coefficient omega, which quantifies the degree of solute restriction in clays or GCLs that exhibit semi-permeable membrane behaviour. In addition, the apparatus allows the monitoring of the total vertical stress acting on the specimen during a chemico-osmotic diffusion test while keeping the vertical deformations at a negligible level (<1%). This improvement of the traditional testing approach allows for the determination of the chemical-osmotic efficiency coefficient, omega, and of the swelling coefficient omega, the main parameters that characterize the chemico-osmotic behaviour of clays and GCLs on the same specimen. The paper also reports on the results of some tests carried out on conventional and enhanced GCLs, with the main purpose of comparing the results obtained by means of the new testing apparatus with literature data. A first application of an advanced existing theoretical model for the description of chemical-osmotic phenomena to the results obtained is also illustrated.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/352992

Monitoring small-strain stiffness and permeability of geomaterials for environmental use
ENVIRONMENTAL GEOTECHNICS
Autore/i: Bernardo, Davide; Di Sante, Marta; Fratalocchi, Evelina; Mazzieri, Francesco
Classificazione: 1 Contributo su Rivista
Abstract: Cement-bentonite (CB) mixtures, compacted soil-lime (SL), and compacted soil-lime-fly-ash (SLFA) mixtures are frequently used materials in environmental engineering. The properties of these materials change over time due to chemical reactions between the binder, soil, and/or water. The acceptance criteria for these materials are usually defined by specific property values, such as permeability, stiffness, and shear strength, measured at certain curing times. The small-strain shear modulus, G0, can be non-destructively measured using the Bender Element method. The present paper illustrates the trend of G0 in CB, SL, and SLFA mixtures over curing time until 60-90 days. In addition, the hydraulic conductivity, k, was also measured. Three different CB mixtures, one SL mixture, and one SLFA mixture were examined. It was observed that the G0 for the CB mixtures increased as the curing time progressed, while the k decreased noticeably. The ratio of cement to water in CBs seemed to play a key role in determining the G0, while other factors, like the use of additives, also significantly affected the k. For SL and SLFA mixtures, the G0 was found to rise with curing time, showing a pattern reflecting the advancement of pozzolanic reactions between the soil and binders, and the permeability correspondingly decreased within one order of magnitude.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/354373

Semi-permeable membrane behaviour of conventional and enhanced Geosynthetic Clay Liners
E3S Web of Conferences
Autore/i: Bernardo, Davide; Domizi, Jonathan; Fratalocchi, Evelina; Mazzieri, Francesco
Editore: EDP Sciences
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The semipermeable membrane behavior of conventional and enhanced Geosynthetic Clay Liners (GCLs) is viewed with great interest in pollutant containment applications, as the consequent reduction of diffusive flow and the onset of chemical osmosis improves the containment properties. In this context, an experimental apparatus was developed to characterize the semipermeable membrane behavior of GCLs. Preliminary results were obtained on conventional GCLs and a Dense PreHydrated and polymer-enhanced (DPH) GCL. The measured values of the chemico-osmotic efficiency coefficient I are comparable with literature data. In addition, owing to the possibility of monitoring the total vertical stress, the equipment allows determining the at the same time the swelling coefficient I. In this way, a complete picture of the behavior of the charged porous medium in response to chemical exposure is obtained and it is possible to determine on the same specimen the relevant parameters for the application of advanced theoretical models of chemical-osmotic phenomena in clays and GCLs.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/347932

Eggshell Lime for Soil Treatment
Environmental Geotechnics and Pollution Control, Proceedings of EGRWSE 2024, Volume 1
Autore/i: Di Sante, Marta; Bellezza, Ivo; Del Cane, Mattia; Fratalocchi, Evelina; Khan, Muhammad Khizar; Mazzieri, Francesco; Cosentini, Renato; Rosone, Marco
Editore: Springer
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: In the framework of a research project financed by Next Generation EU Programme with the Italian Ministry of University and Research, the proposed note explores the possibility of producing lime from eggshells for soil stabilization purposes. The calibration of the production procedure of eggshell lime by calcination is supported by the use of thermogravimetric analysis and X-Ray diffraction and then verified by the fulfillment of International Standard requirements for lime in soil stabilization applications. Physico–chemical and mineralogical characterization of the produced lime is carried out and also preliminary results of a feasibility study of treatment of a clayey soil with the produced eggshell lime are presented. Proctor compaction, initial consumption of lime test and permeability tests in flexible wall permeameters were carried out on untreated soil and on the same soil treated with 4% of eggshell lime. Obtained results are compared with those obtained for the same soil treated with 4% of commercial quicklime.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/345114

Laboratory procedures for the modification of soluble and exchangeable cations of geosynthetic clay liners
E3S Web of Conferences
Autore/i: Guarena, Nicolò; Mazzieri, Francesco; Dominijanni, Andrea; Fratalocchi, Evelina; Manassero, Mario
Editore: EDP Sciences
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: A novel dialysis procedure to modify the exchange complex composition of the bentonite component of geosynthetic clay liners, as well as to remove the excess soluble salts from the bentonite pores, has been developed in order to overcome the limitations associated with the currently used dialysis methods. Indeed, when the bentonite to be purified is characterized by an aggregated fabric, the presence of less accessible pores does not allow the interlayer exchangeable cations to be replaced by the cationic species contained in the dialysing solution, thus undermining the effectiveness of dialysis in homo-ionising the bentonite specimen. For such a reason, the novel dialysis procedure that is proposed in this study comprises a preliminary treatment phase, which comes before the homo-ionisation phase and is aimed to promote the break-up of the bentonite tactoids through dialysis cycles with deionised water. A natural powdered bentonite has been tested in the laboratory to evaluate the enhancement in the bentonite sodium homo-ionisation that is due to the adoption of the newly developed dialysis procedure, in substitution to the currently used one, showing that such substitution results in an increase in the exchangeable sodium percentage from 35% to 78% at the expense of a decrease in the exchangeable calcium percentage.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/348397

Analytical solutions for piles subjected to a passive load
GÉOTECHNIQUE LETTERS
Autore/i: Bellezza, I.; Fratalocchi, E.
Classificazione: 1 Contributo su Rivista
Abstract: The paper analyses a single free-head flexible passive pile embedded in a soil profile consisting of an unstable layer overlying a stable one. The pile segment in the unstable layer is subjected to a linear distribution of the load, whereas the pile response is evaluated by assuming a uniform modulus of subgrade reaction in the stable layer. Closed-form expressions are derived for the pile head deflection and tabulated values are provided to evaluate the maximum bending moment as a function of dimensionless length of the pile segment in the unstable and stable layers. Analytical solutions for infinitely flexible and rigid piles have been obtained as special cases of the general solution. A novel rational rigidity criterion for passive piles is also proposed. A numerical example is finally presented to illustrate the application of the derived solution.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/347934

The Combined Use of Fly Ash and Lime to Stabilize a Clayey Soil: A Sustainable and Promising Approach
GEOSCIENCES
Autore/i: Di Sante, Marta; Khan, Muhammad Khizar; Calo, Luca; Fratalocchi, Evelina; Mazzieri, Francesco
Classificazione: 1 Contributo su Rivista
Abstract: The aim of the present note is to contribute to the search for sustainable binders to be used for soil stabilization purposes. Fly ash and quicklime are added to a clayey soil of low plasticity in different proportions; samples were prepared by wet mixing and Standard Proctor compaction of the soil–water–binder mixture. Permeability tests were carried out for the first 28 days of curing, varying the moulding water content of the investigated samples. Compressibility was evaluated through one-dimensional consolidation tests performed after 7 days of curing and shear strength was investigated at the same curing time. Reactions development was successfully monitored by measuring pH and small strain shear modulus by means of bender elements testing for the first 28 days of curing. Microstructural investigation through scanning electron microscope and Energy dispersive X-Ray Spectroscopy revealed the presence of pozzolanic products in the mixture, reflecting the reduction in compressibility and the improvement in the mechanical characteristics of the soil of concern, after the treatment. The addition of the combination of fly ash and quicklime allowed to enhance the draining capability of the mixtures, especially when the mixture is compacted at optimum water content.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/347232

Effects of stabilization on the behaviour of Finnish sensitive soils
Geotechnical Engineering Challenges to Meet Current and Emerging Needs of Society
Autore/i: Di Sante, M.; Di Luigi, G.; Bellezza, I.; Mazzieri, F.; Fratalocchi, E.; Di Buò, B.; Länsivaara, T.
Editore: Taylor & Francis Group
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The proposed note presents the results of an experimental activity aiming at studying the hydraulic and mechanical behaviour of a Finnish sensitive soil treated by fly ash and lime. A laboratory testing program was carried out both on treated and untreated soil; soil-binders samples were prepared by wet mixing of the components and by Standard Proctor compaction. Hydraulic conductivity tests were carried out in flexible wall permeameters; the compressibility was studied by incremental load oedometric tests. The results have shown a general increase of the hydraulic conductivity and a significant reduction in compressibility after binders addition; the extent of modification of soil properties was observed to depend upon the compaction water content of the soil. The soil treatment is generally economically convenient if compared to disposal in waste landfills, which would represent the only alternative for the soil type of concern. In addition, if a by-product such as fly-ash is able to act as effective binder in the mixture, this surely constitutes a promising perspective in terms of sustainability in the field of earthen structures.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/334253

Comparative Analysis of Physico-Chemical and Potassium Sorption Properties of Sensitive Clays
MINERALS
Autore/i: Di Sante, M.; Fratalocchi, E.; Mazzieri, F.; Di Buo, B.; Lansivaara, T.
Classificazione: 1 Contributo su Rivista
Abstract: The paper analyses physico-chemical and geotechnical characteristics of four Scandinavian sensitive soils formed under different environmental depositional conditions, with the main aims to contribute to the knowledge of sensitive soils and assess the potassium sorption capacity among the investigated soils, as a basic characteristic to evaluate the effectiveness of treatment with KCl and to analyse potassium migration in such soils. The results show that, although the chemical composition of the four soils is very similar, their sensitivity is significantly different. The correlation from literature linking the specific surface, mineralogy, and plasticity in sensitive clays of Eastern Canada, was found to be qualitatively valid for the investigated Scandinavian sensitive clays, too. The highest value of the sensitivity index among the tested soils was found to be related to the lowest cation exchange capacity and to a limited amount of amorphous minerals. These characteristics contribute to explaining the highly sensitive behaviour of that soil affecting the structure formation during the deposition stage. The potassium sorption capacity has been experimentally investigated through batch tests specifically performed on the sensitive soils, as the first step to quantify the maximum sorption capacity and identify the main factors affecting it. The maximum potassium sorption capacity was always lower than that estimated by the cation exchange capacity, and it increased with the cation exchange capacity, plasticity index, and activity of the soils, as well as with the amount of phyllosilicates and amorphous minerals.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/338973

Efficienza chimico-osmotica di geocompositi bentonici: apparato sperimentale e primi risultati
XXXIII Convegno Nazionale sui Geosintetici: Applicazioni Sostenibili e Nuovi Orientamenti di Ricerca
Autore/i: Bernardo, D.; Domizi, J.; Fratalocchi, E.; Mazzieri, F.
Editore: PATRON
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/334952

Use of Field Measurements of Mercury Vapour Emissions from soil in risk assessment procedure for a polluted site
9th ICEG - International congress on Environmental Geotechnics Conference Proceedings Vol.1 Contaminant Fate and Transport
Autore/i: Di Sante, M.; Mazzieri, F.; Bernardo, D.; Fratalocchi, E.
Editore: ARGO-E Group
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: In a Tier 2 application of the RBCA (Risk Based Corrective Action) procedure for polluted sites, the application of common analytical volatilization models may lead to an overestimation of vapour emissions. The use of site-specific parameters of soil and specifically measured physico-chemical parameters of contaminants are sometimes not able to mitigate this overestimation. The present note describes the results of measurements of mercury vapour emission from soil at an actual contaminated italian site. Several surveys were carried out over one year, in order to take into account possible seasonal variations. Both the vapour flux from soil and the concentration in open air were measured by means of open dynamic flux chambers (FC) and through direct measurements in outdoor air, respectively. For a given investigation point, the predictions of volatilization models were compared with direct measurements. The actual emissions were found to be significantly lower than those estimated by the models, seasonal variation did not cause high differences among measured concentration and flux values. The use of an experimentally determined soil-water partition coefficient helped in obtaining a less unrealistic output of the model and information about the effect of using default parameters can be retrieved by combining results from both FC and direct measurements in outdoor air.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/319152

Monitoring small-strain stiffness in cementitious porous materials and amended soils for geo-environmental applications
9th INTERNATIONAL CONGRESS ON ENVIRONMENTAL GEOTECHNICS - Conference Proceedings Vol.3 Advances in Testing and Material Characterization – Geosynthetics for the Geoenvironment
Autore/i: Bernardo, Davide; Di Sante, Marta; Fratalocchi, Evelina; Mazzieri, Francesco
Editore: ARGO-E Group
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The paper illustrates the use of Bender Element (BE) technique to monitor the development of smallstrain shear modulus, G0, in cement-bentonite (CB) mixtures and compacted soil-lime (SL) mixtures, both commonly employed in various geo-environmental applications. Three CB mixtures of different composition and one SL mixture were investigated. The G0 of the CB mixtures was found to increase with curing time, while the hydraulic conductivity significantly decreased. The cement-to-water ratio of CBs appeared to be the controlling factor on G0 whereas the hydraulic conductivity is also significantly influenced by other variables in composition (e.g. use of additives). The small-strain shear modulus of the soil-lime was found to increase with curing time with a trend that can be related to that of soil-lime chemical reactions. The results suggested that G0 can represent a useful parameter to monitor the progress of chemical reactions in soil-lime mixtures.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/319153

Sorption and hydraulic performance of cement-bentonite cutoffs in saline sulphatic solutions
SOILS AND FOUNDATIONS
Autore/i: Fratalocchi, E.; Domizi, J.; Felici, M.; Mazzieri, F.
Classificazione: 1 Contributo su Rivista
Abstract: The paper discusses the results of an experimental research on the short and long term hydraulic performance and sorption of cement-bentonite mixtures in saline sulphate solutions. Batch tests at different curing times and permeation tests were performed on three cement-bentonite mixtures with solutions of K2SO4. The results show that permeation can adversely affect the hydraulic performance of cement-bentonite mixtures depending on the sulphate concentration and mixture composition and that the choice of a very low permeable mixture is essential to limit adverse effects of interaction with SO42- on the hydraulic performance. Sorption of K+ was found to be significant, well described by a linear isotherm in a wide range of concentration and nearly constant with curing. Sorption of SO42 was found to decreases with mixture porosity. Since sorption of SO42- means negative interaction, batch tests were found to be useful for a rapid estimation of possible negative effect of SO42- on the hydraulic behaviour in the long term, when selecting a mixture in the design phase. All the results point out the importance of selecting a mixture to be used for cut-off walls with a low hydraulic conductivity already at brief curing and of carefully considering interaction with solute pollutants and sorption capacity
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/316136

Hydraulic conductivity and compressibility of soils treated with fly ash
Geotechnical Engineering in the Digital and Technological Innovation Era
Autore/i: Di Sante, M.; Bellezza, I.; Bernardo, D.; Fratalocchi, E.; Mazzieri, F.; Pasqualini, F.
Editore: Springer
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: In the present note, experimental results of geotechnical tests on soil-fly ash mixtures are presented, focusing on hydraulic conductivity and compressibility of the stabilized soils. Two excavated natural soils with different characteristics were treated with 4% of a high pozzolanic fly ash. Samples were obtained by wet mixing of soil and binder and subsequent Standard Proctor compaction. Permeability tests and one-dimensional compression tests were carried out. Results are presented and in comparison with those of the same soils treated with lime or with a Portland Cement. SEM observations and Energy Dispersive X-Ray Spectroscopy were performed both on the additive and on the treated soils. Fly ash treatment was found capable to increase the soil hydraulic conductivity and to appreciably reduce the compressibility. Anyway, the fly ash stabilization resulted less effective if compared with that by traditional binders. Microstructure investigation on fly ash treated samples shows the not uniform presence of reaction products suggesting that environmental conditions should be further optimized for a higher reactions development.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/319051

Chemico-osmotic efficiency of geosynthetic clay liners: Testing apparatus and preliminary results
Geosynthetics: Leading the Way to a Resilient Planet
Autore/i: Bernardo, D.; Domizi, J.; Fratalocchi, E.; Mazzieri, F.
Editore: Taylor & Francis
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The membrane behaviour of conventional and enhanced Geosynthetic Clay Liners is regarded with interest for applications in barrier systems as the presence of chemical osmosis improves the GCL containmenty properties. With the purpose of assessing the existence and persistence of chemico-osmotic behavior in GCLs, an apparatus able to perform chemico-osmotic diffusion tests on GCLs and soils has been developed. The paper describes the main features of the systems and preliminary results obtained using conventional and polymer-amended GCLs and a 20 mM KCl solution. The measured osmotic efficiency and solute diffusion coefficients were close to results in the literature on similar GCL materials and similar testing conditions, proving the system reliability.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/322311

Linking small-strain stiffness to development of chemical reactions in lime-treated soils
TRANSPORTATION GEOTECHNICS
Autore/i: DI SANTE, Marta; Bernardo, Davide; Bellezza, Ivo; Fratalocchi, Evelina; Mazzieri, Francesco
Classificazione: 1 Contributo su Rivista
Abstract: In the context of lime stabilization, this note shows how the development of soil–lime reactions can be linked to the variation of small shear stiffness with time. To determine the evolution of small-strain stiffness, the shear wave velocity was measured by means of bender elements (BE) on a compacted clayey soil treated with 3% quicklime, starting form 2 h after compaction until 98 days of curing. Different methods of signal interpretation were applied with the purpose of highlighting how the peculiarity of lime treated soils affects BE testing results and to provide practical indications for optimizing similar testing on lime-treated soils. The results showed that lime treatment and compaction affect the waveform of the received signal and that measurements should span across a wide range of input frequencies in order to identify an optimal waveform. The small strain shear modulus was found to increase with curing time with a trend that can be related to that of soil–lime chemical reactions, thus representing a promising parameter to monitor the development of soil–lime reactions.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/295536

Tempi di reazione nelle miscele terra-calce ed influenza delle condizioni di stagionatura sulla loro conducibilità idraulica
La Geotecnica per lo sviluppo sostenibile del territorio e per la tutela dell’ambiente - Atti del XXVII Convegno Nazionale di Geotecnica
Autore/i: Di Sante, M.; Bellezza, I.; Bernardo, D.; Felici, M.; Fratalocchi, E.; Mazzieri, F.; Pasqualini, E.
Editore: Associazione Geotecnica Italiana
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: La limitata disponibilità di terreni naturali di buona qualità per la costruzione di opere in mate-riali sciolti e la necessità di individuare soluzioni sostenibili a problemi ingegneristici hanno dato il giusto im-pulso alla ricerca nel campo del miglioramento dei terreni. Come noto, le proprietà meccaniche ed idrauliche delle terre possono essere migliorate mediante l’aggiunta di calce e la successiva compattazione della miscela terra-calce.Il contributo illustra i risultati di un progetto di ricerca attualmente in corso su terre di diverse caratteristi-che trattate con diverse percentuali di ossido o di idrato di calcio, con l’obiettivo di confrontare le tempistiche di reazione e valutare l’effetto delle condizioni di stagionatura (presenza d’acqua) sulla conducibilità idraulica delle miscele. Lo sviluppo delle reazioni nel tempo è stato dedotto, nei singoli casi, mediante un metodo di prova basato sul valore del pH. Il metodo è stato utilizzato anche per l’interpretazione di prove di conducibili-tà idraulica di lunga durata eseguite in FWP (Flexible Wall Permeameters). Le reazioni di scambio ionico si esauriscono, per le miscele studiate, entro i primi tre giorni di stagionatura e quelle pozzolaniche si sviluppa-no pienamente durante le prime tre settimane. Si è osservato che il trattamento con calce incrementa, in tutti i casi esaminati, la permeabilità del terreno e che, all’aumentare del tempo di stagionatura speso in condizioni di parziale saturazione, la conducibilità idraulica dei campioni testati subisce una più marcata riduzione nel corso della stagionatura e risente maggiormente dell’aumento delle tensioni di confinamento. Le osservazioni al Microscopio Elettronico a Scansione hanno consentito di verificare una più diffusa presenza dei prodotti pozzolanici cristallini nei campioni saturati immediatamente dopo la compattazione.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/295351

Progettazione di un campo prova per il consolidamento di sedimenti in vasca di colmata
La Geotecnica per lo sviluppo sostenibile del territorio e per la tutela dell'ambiente
Autore/i: Felici, M.; Fratalocchi, E.; Domizi, J; Pasqualini, E.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/316137

Recenti sviluppi nello studio delle prestazioni dei diaframmi plastici
La geotecnica per lo sviluppo sostenibile del territorio e per la tutela dell'ambiente
Autore/i: Fratalocchi, E.; Domizi, J.; Felici, M.; Mazzieri, F.
Editore: Associazione Geotecnica Italiana
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/314356

RECENT DEVELOPMENTS IN SITE SPECIFIC RISK ASSESSMENT FOR POLLUTED SITES
Procedia Environmental Science, Engineering and Management - 24th International Trade Fair of Material & Energy Recovery and Sustainable Development
Autore/i: DI SANTE, Marta; Mazzieri, Francesco; Fratalocchi, Evelina
Editore: SNSIM
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The present note highlights the role of geotechnical expertise for Risk Assessment of contaminated sites and illustrates specific aspects related to migration modeling. Implications of neglecting the time variable and the advantages of the direct measurements of vapors, performed by application of different techniques, are described and discussed. The comparison between direct measurements of vapor emissions and modeling outcomes show how the use of measured data is able to overcome the limitations deriving by restrictive model assumptions and effectively helps in obtaining more realistic results.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/293783

Ottimizzazione delle procedure di consolidazione di sedimenti dragati in vasche di colmata
Atti dell’Incontro Annuale dei Ricercatori di Geotecnica 2021
Autore/i: Pasqualini, Federica; Felici, Mirko; Bellezza, Ivo; Fratalocchi, Evelina
Editore: Edizioni AGI
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/300895

PVD-assisted consolidation of dredged sediments in a CDF: design of the test field
Third International Symposium on Coupled Phenomena in Environmental Geotechnics
Autore/i: Felici, Mirko; Fratalocchi, Evelina; Di Sante, Marta; Pasqualini, Federica; Pasqualini, Erio
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: A confined disposal facility (CDF) was built at the Ancona Harbour (Italy) to host contaminated dredged sediments. The Port Authority intended to get the chance to use the reclaimed land as a storage area. Since dredged sediments typically have very high void ratios when disposed in a CDF, their consolidation is essential to achieve proper mechanical characteristics. Consolidation of sediments by prefabricated vertical drains (PVDs) and embankment preloading is being planned. Since large strains are expected, nonlinear constitutive relations for compressibility and hydraulic conductivity are required to model consolidation processes. For this purpose, sediments were characterised by laboratory tests to determine compressibility and permeability laws, followed by field investigations (CPTUs and dissipation tests). A full scale test field has been designed to calibrate modelling and set up the operating procedures. The paper illustrates and discusses the design criteria of the test field.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/297061

Experimental study of the mechanical behaviour of a new extruded earth block masonry
CONSTRUCTION AND BUILDING MATERIALS
Autore/i: Stazi, Francesca; Serpilli, Michele; Chiappini, Gianluca; Pergolini, Marianna; Fratalocchi, Evelina; Lenci, Stefano
Classificazione: 1 Contributo su Rivista
Abstract: The aim of this research is to investigate, through the Digital Image Correlation (DIC) technique, the mechanical performance of a new type of earth masonry, built with extruded blocks and characterized by dovetail horizontally staggered bed joints. The experimental program consists of two levels of investigations: (i) preliminary phase on components, (ii) compression, diagonal compression and combined shear-compression tests on 12 wallettes. Regarding the components, results showed that the mean compressive strength of the earth block was low (3.5 MPa) with respect to traditional bricks and similar to adobe blocks. The dovetail joints were effective in their joining role showing a rather good strength (2.4 MPa) when tested in triplet configuration. Regarding the wallettes, the DIC highlighted failure modes complying with the ones of a traditional masonry under shear, while it showed a ‘‘column behaviour” with vertical sliding under compressive tests. Fragile failures occurred during the diagonal compression test. DIC revealed to be a promising technique to recover the full-field strain and crack maps.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/276215

Lime treatment of a soft sensitive clay: a sustainable reuse option
GEOSCIENCES
Autore/i: DI SANTE, Marta; Di Buò, Bruno; Fratalocchi, Evelina; Länsivaara, Tim
Classificazione: 1 Contributo su Rivista
Abstract: This paper presents the results of research aimed at studying the hydraulic and mechanical behavior of Finnish soft clays treated by quicklime. This research investigated the effect of water content and curing time on the characteristics of the compacted soil treated with 7% lime, with the aim of verifying the effectiveness of lime treatment and evaluating its possible re-use, thus avoiding landfill disposal. A laboratory-testing program was carried out both on treated and untreated soil, supported by microstructural investigation. Results have shown a general increase of the hydraulic conductivity due to the addition of lime, reduction of compressibility, and increase in the soil shear strength for a wide range of water contents (10%–40%), proving the effectiveness of the lime treatment. Lime addition to the compacted clay at high water contents (90%–130%) turned out to improve the mechanical characteristics to a lesser extent, while fractionated lime supply did not significantly improve the mechanical performance. The results of this research demonstrate that the re-use of sensitive clays, typically of high water contents, by lime addition require a drying process. Different drying procedures can be adopted (proposed in the paper) depending on the specific site conditions. However, the soil treatment is generally economically convenient in comparison to the disposal in waste landfills, which would represent the only alternative solution.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/282158

Prediction of shear strength parameters in soil–lime mixture design – part 2: hydrated lime
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS. GROUND IMPROVEMENT
Autore/i: Fratalocchi, Evelina; Di Sante, Marta; Mazzieri, Francesco; Pasqualini, Erio
Classificazione: 1 Contributo su Rivista
Abstract: In the field of lime stabilisation of soil, one of the main research objectives is optimisation of the mix design procedure. To this aim, correlations between strength parameters of treated soils and the main characteristics of lime treatment can be useful to have a preliminary estimation and reduce the number of laboratory tests to be performed in the design phase. This paper, part 2 of two companion papers, describes a comprehensive series of direct shear tests carried out on specimens of six soils with different characteristics treated with different amounts of hydrated lime (HL). In part 1, quicklime (QL) treatment is addressed with the same purpose. Good correlations between shear strength parameters and main soil–HL variables were obtained by multiple regression analyses and they were validated with data from the literature. The most significant predictors of the shear strength parameters were always found to be the clay fraction of the untreated soil and the lime content. In order to obtain an overall view of stabilisation possibilities, experimental results and predicted values for QL treatment formerly obtained by authors are discussed in this paper. This approach helps in the selection of the most suitable type of lime.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/264710

Prediction of shear strength parameters in soil–lime mixture design – part 1: quicklime
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS. GROUND IMPROVEMENT
Autore/i: Di Sante, Marta; Fratalocchi, Evelina; Mazzieri, Francesco; Pasqualini, Erio
Classificazione: 1 Contributo su Rivista
Abstract: Lime stabilisation is a widely used technique, however, in practical applications, it is not unusual to encounter cases of failure due to a lack of consideration of all the steps involved and incomplete account of the variables to produce a successful mix design. This paper, part 1 of two companion papers, presents useful correlations between the shear strength parameters of compacted soil–quicklime (QL) mixtures and the main variables of lime treatment. In part 2, shear strength data of compacted soil–hydrated lime mixtures are processed for the same purpose. The correlations for QL treatment were derived from 26 triaxial compression and direct shear tests by multiple regression analysis. The database was constructed with experimental results concerning five soils with different plasticity characteristics and CFs. QL was added to the soils in different proportions. Tests were carried out at different curing times on soil–lime samples compacted at different water contents. Very good correlations were obtained and validated with data from the literature. Thanks to these correlations, the optimum lime amount can be preliminarily identified, knowing the characteristics of the soil to be treated and the required design shear strength parameters.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/264709

Critical issues in the determination of the bentonite cation exchange capacity
GÉOTECHNIQUE LETTERS
Autore/i: Dominijanni, A.; Fratalocchi, E.; Guarena, N.; Manassero, M.; Mazzieri, F.
Classificazione: 1 Contributo su Rivista
Abstract: The swelling pressure and transport properties of bentonites are controlled by the electric charge density of solid particles, which is commonly estimated from the laboratory measurement of the cation exchange capacity (CEC). However, the standard ammonium displacement method for CEC determination does not take into account the fabric changes that occur in bentonites under exposure to high salt concentration solutions. A series of laboratory tests was conducted to assess the relevance of such a critical issue, by varying the concentration of the extracted potassium chloride (KCl) solution with respect to that of the standard test. The obtained results show that the release of the adsorbed ammonium cations depends on the bentonite fabric, which is controlled by the potassium chloride concentration. As a consequence, the ammonium displacement method may provide an unrepresentative estimate of the CEC of bentonites. The methylene blue titration method, despite its apparently more limited accuracy, instead, seems to provide a more reliable estimation of the CEC, as the bentonite fabric is maintained dispersed during the test.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/267881

Modeling Solute Transport Through Geosynthetic Clay Liners Permeated with Inorganic Solutions
The International Congress on Environmental Geotechnics
Autore/i: Mazzieri, Francesco; Fratalocchi, Evelina
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/262645

Consolidation of dredged sediments in a confined disposal facility: Hydraulic conductivity constitutive relations
Environmental Science and Engineering
Autore/i: Felici, M.; Domizi, J.; Fratalocchi, E.
Editore: Springer Berlin Heidelberg
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/268881

Hydraulic conductivity and sorption capacity of special barrier materials in inorganic solutions
Environmental Science and Engineering
Autore/i: Fratalocchi, E.; Domizi, J.; Mazzieri, F.
Editore: Springer Berlin Heidelberg
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/268883

Field testing of a composite GM – GCL barrier against emission of gaseous mercury from polluted soil
Proceedings of the XVII ECSMGE-2019
Autore/i: Mazzieri, F.; Di Sante, M.; Fratalocchi, E.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/270304

Sanitary and environmental risk assessment for a potentially contaminated aquifer system: a case study
Proceedings of the XVII ECSMGE-2019
Autore/i: DI SANTE, Marta; Mazzieri, Francesco; Fratalocchi, Evelina
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/270308

The role of geotechnics in the risk assessment procedure for polluted sites
RIVISTA ITALIANA DI GEOTECNICA
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina; Mazzieri, Francesco; Pasqualini, Erio
Classificazione: 1 Contributo su Rivista
Abstract: The National Environmental Code made the site-specific risk assessment an essential tool for the management and remediation of contaminated sites. The paper underlines the role of geotechnical expertise for Risk Assessment of contaminated sites and illustrates specific aspects, also derived by practical applications. The paper offers an overview of the risk assessment procedure and points out how the appropriate definition of the subsoil model greatly affects the formulation of the assessment and, consequently, the risk results and the remediation design. The effects of several soil parameters affecting the risk assessment procedure and results are examined and the application of new techniques in evaluating the migration pathways are described and discussed. With reference to the migration models implemented in computer codes, the paper addresses the importance of appropriate model to predict contaminant leaching and transport to groundwater and the issue of contaminant volatilization by comparing results of commonly used volatilization models and direct measurements of vapor emissions.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/270305

Prediction methods in soil-lime mixture design
Proceedings of the XVII ECSMGE-2019
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina; Mazzieri, Francesco; Bellezza, Ivo
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/270306

Environmental sustainability of engineering works: geological and geotechnical aspects
The First Outstanding 50 Years of “Università Politecnica delle Marche: Research Achievements on Physical Sciences and Engineering
Autore/i: Scarpelli, Giuseppe; Bellezza, Ivo; DI SANTE, Marta; Fratalocchi, Evelina; Fruzzetti, Viviene M. E.; Mazzieri, Francesco; Nanni, Torquato; Pasqualini, Erio; Ruggeri, Paolo; Sakellariadi, Evghenia; Tazioli, Alberto; Vivalda, Paola Maria
Editore: Springer
Luogo di pubblicazione: CHAM
Classificazione: 2 Contributo in Volume
Abstract: The design and construction of engineering works such as road infrastructures, port facilities and waste disposal plants require that important environmental issues be addressed, in order to guarantee sustainability and facilitate acceptability by the population. With these objectives, much of the scientific work produced by the geological and geotechnical research group of the Università Politecnica delle Marche in the past 50 years has involved aspects such as understanding the effects of human activities on the environment in order to prevent or minimize the risks of permanent damage, exploration of solutions that optimize the use of natural resources, implementation of technologies that promote the use of improved natural materials for construction, application of design procedures that are based on high quality geological, geotechnical and geo-environmental models of the construction sites. This paper will present, via the illustration of some practical examples, the contribution that such research activities have provided on the solution of some important engineering problems in the past decades.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/269040

Prediction of shear strengths parameters and its application in soil-lime mixture design
PROCEEDINGS OF THE 6th INTERNATIONAL YOUNG GEOTECHNICAL ENGINEERS' CONFERENCE
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina; Mazzieri, Francesco; Pasqualini, Erio
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The paper presents useful correlations between the shear strength parameters of compacted soil-lime mixtures and the main variables of lime treatment: moisture content, lime amount, curing time, clay fraction and plasticity index of the untreated soil. A case study addressing the reliability of this prediction is shown. The correlations were derived by multiple regression analysis from a database of 35 triaxial compression or direct shear tests on seven soils treated with different amounts of quicklime or hydrated lime. Tests were carried out at different curing times on soil-lime samples compacted at different water contents. The obtained correlations allow to assess the feasibility of the lime treatment and to preliminarily identify the optimum lime type and amount on the basis of the characteristics of the soil to be treated and the required shear strength parameters. The case study concerns the design of embankments for service roads of a landfill constructed along a slope. It shows that the correlations can be a key strategy to select the proper construction method and that they allow reducing the number of laboratory tests to be performed in the design phase.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/252264

Risk Assessment for Contaminated Sites: Analytical Models and Field Measurements of Vapor Emissions from Soil
Geotechnical Special Publication
Autore/i: DI SANTE, Marta; Mazzieri, Francesco; Fratalocchi, Evelina; Pasqualini, Erio
Editore: American Society of Civil Engineers (ASCE)
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/251401

Elastic-Plastic Analysis of Passive Rigid Piles in Coehesionless Soils
Proceeedings - 19th International Conference on Soil Mechanics and Geotechnical Engineering
Autore/i: Bellezza, Ivo; Caferri, Leonardo; DI SANTE, Marta; Fratalocchi, Evelina; Mazzieri, Francesco
Editore: 19th ICSMGE Secretariat
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/253685

Stability analyses and design of a waste landfill enlargement in a seismic area
Proceedings XIX International Conference of Soil Mechanics and Geotechnical Engineering
Autore/i: Mazzieri, Francesco; DI SANTE, Marta; Fratalocchi, Evelina; Bellezza, Ivo; Pasqualini, Erio
Editore: 19th ICSMGE Secretariat
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/253676

Modeling contaminant leaching and transport to groundwater in Tier 2 risk assessment procedures of contaminated sites
ENVIRONMENTAL EARTH SCIENCES
Autore/i: Mazzieri, Francesco; DI SANTE, Marta; Fratalocchi, Evelina; Pasqualini, Erio
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/237970

Effects of Variation in Compaction Water Content on Geotechnical Properties of Lime-treated Clayey Soil
Procedia Engineering
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina; Mazzieri, Francesco
Editore: Elsevier Ltd
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/238651

Aspetti geotecnici delle discariche esistenti: problematiche di instabilità ed interventi di ripristino
Atti dei convegni nazionali REMTECH 2016
Autore/i: Pasqualini, Erio; DI SANTE, Marta; Fratalocchi, Evelina
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: La presente nota illustra gli aspetti geotecnici connessi con la progettazione delle discariche in pendio. Sottolinea, in particolare, i più frequenti meccanismi di rottura e contiene indicazioni su come tener conto di tali eventualità in fase di progetto. Successivamente, a titolo di esempio, si illustra un caso di studio riguardante un intervento di ripristino in emergenza su una discarica in pendio soggetta ad instabilità
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/244906

Le miscele terra-calce
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina; Pasqualini, Erio
Editore: Aracne Editrice
Luogo di pubblicazione: Roma
Classificazione: 3 Libro
Abstract: L’uso dei terreni per scopi costruttivi è tipico dell’ingegneria geotecnica, stradale e ambientale. I terreni costituiscono una risorsa non rinnovabile e, in quanto tale, è da prediligerne il recupero che si può effettuare aggiungendo la calce alle terre argillose, quale legante. Il criterio di progettazione finora seguito per tali applicazioni è di tipo empirico, basato esclusivamente sull’esperienza. È invece fondamentale eseguire una corretta sperimentazione propedeutica alla progettazione e alla realizzazione in scala reale. Il testo fornisce indicazioni progettuali per il design delle miscele, accompagnate da una panoramica sul trattamento a calce. Sono inoltre disponibili approfondimenti teorici e richiami a concetti di base utili per i professionisti che decidono di affrontare tali argomenti con la giusta consapevolezza tecnica.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/244838

About the State Parameters of Active Clays
GeoEnvironemntal Engineering. Honoring D.E.Daniel. GSP 274
Autore/i: Manassero, Mario; Dominijanni, Andrea; Fratalocchi, Evelina; Mazzieri, Francesco; Pasqualini, Erio; Boffa, Giacomo
Editore: ASCE
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/237016

Durability of Cement-Bentonite Cut-Off Walls in Sulphate Solutions
Geotechnical Special Publication
Autore/i: Fratalocchi, Evelina; Brianzoni, Virginia; Mazzieri, Francesco; Pasqualini, Erio
Editore: American Society of Civil Engineers (ASCE)
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/237897

Mohr–Coulomb failure envelopes of lime-treated soils
GEOTECHNIQUE
Autore/i: Consoli, N. C.; DA SILVA LOPES JR, L.; Consoli, B. S; Festugato, L; DI SANTE, Marta; Fratalocchi, Evelina; Mazzieri, Francesco
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/227882

Trattamento a calce delle terre: tempi di reazione ed influenza delle condizioni di stagionatura sulla microstruttura e sulla compressibilità
Atti dell’Incontro Annuale dei Ricercatori di Geotecnica 2015 (IARG2015)
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: La nota illustra i risultati di un progetto di ricerca in corso su terre di diverse caratteristiche trattate con il 5% di idrato di calcio, con l’obiettivo di confrontare le tempistiche di reazione e valutare l’effetto delle condizioni di stagionatura (presenza d’acqua) sulla quantità e tipo di prodotti di reazione nonché sulla compressibilità. Lo sviluppo delle reazioni nel tempo è stato dedotto mediante un metodo di prova basato sul valore del pH. Si è osservato che le reazioni di scambio ionico si esauriscono, per le miscele studiate, entro i primi tre giorni e quelle pozzolaniche si sviluppano pienamente entro le prime tre settimane. Il wetting immediato dei campioni di terra-calce consente una più uniforme distribuzione dei prodotti di reazione, presenti anche in forma cristallina. Una maggiore compressibilità si rileva per la stagionatura in condizioni sommerse, per alti valori (> 400 kPa) della pressione verticale efficace.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/244909

Diaframmi di cinturazione: tipologie e relative prestazioni
Atti dei convegni nazionali RemTech 2015
Autore/i: Fratalocchi, Evelina; Brianzoni, Virginia; Pasqualini, Erio
Editore: DEA Edizioni
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: L’articolo analizza le diverse tecnologie per la realizzazione di diaframmi di cinturazione perimetrale per la messa in sicurezza di siti contaminati, puntualizzandone peculiarità, vantaggi e limiti. Maggiore attenzione è dedicata alla tipologia più frequentemente utilizzata ad oggi, vale a dire il diaframma autoindurente, per il quale vengono esaminate le prestazioni idrauliche in presenza di contaminanti (compatibilità chimica, durabilità, parametri di migrazione), che sono di fondamentale importanza per un’opera destinata al contenimento degli inquinanti nel sottosuolo.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/227925

Influence of delayed compaction on the compressibility and hydraulic conductivity of soil-lime mixtures
ENGINEERING GEOLOGY
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina; Mazzieri, Francesco; Brianzoni, Virginia
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/206114

Dilution Effect of the Apparatus on Contaminant Transport Parameters Assessed by Column Testing
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
Autore/i: Mazzieri, Francesco; DI SANTE, Marta; Fratalocchi, Evelina
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/226132

Hydraulic and mechanical behaviour of cement-bentonite mixtures containing HYPER clay: impact of sulfate attack
Advances in Soil Mechanics and Geotechnical Engineering
Autore/i: Di Emidio, G; Flores, Rdv; Scipioni, C; Fratalocchi, E; Bezuijen, A
Editore: IOS PRESS
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: Cemented clays are regularly employed as cut-off walls to isolate polluted soils or in ground improvement technologies. The objective of this research was to evaluate the performance of a polymer-treated bentonite (HYPER clay) and its impact on hydraulic and mechanical properties of cement-bentonite (CB) mixtures in contact with sulfates. In this research, bender elements were installed in a hydraulic conductivity cell, to simultaneously monitor the small-strain shear modulus (G(0)) and the hydraulic conductivity (k) of cement-bentonite mixtures. Initially, during permeation with deionized water, an increase of G0 with time was observed, due to cement hydration (hardening). Conversely, after prolonged permeation with sulfates, a decrease of G0 and a gradual increase of k are expected due to degradation of the cemented material. Preliminary results show that k of mixtures containing untreated bentonite increases due to contact with sulfates; conversely, k of mixtures containing HYPER clay remains unaffected. The stiffness modulus G0 was not significantly affected after a sulfate contact period of about 100 days in none of the cement-bentonite mixtures. More extensive monitoring is required for evaluating long-term mechanical degradation. These observations suggest that the use of polymer-treated bentonites could improve the resistance of cement-bentonite mixtures to sulfate attack maintaining a low hydraulic conductivity.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/282982

Diaframmi plastici: aspetti progettuali, esecutivi e controlli
Il Contributo della geotecnica alla protezione del sottosuolo dagli inquinanti
Autore/i: Fratalocchi, Evelina; Brianzoni, Virginia; Pasqualini, Erio
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: Dopo aver illustrato e discusso le diverse tecnologie disponibili per la realizzazione di diaframmi plastici, puntualizzandone aspetti salienti, vantaggi e limiti, l’articolo tratta piu in dettaglio i diaframmi plastici costituiti da miscele ternarie acqua-cemento-bentonite, ponendo l’accento su aspetti peculiari relativi al progetto, alla costruzione ed ai controlli in corso d’opera e finali. Sono altresi evidenziati aspetti critici e fornite raccomandazioni finalizzate all’ottimizzazione delle prestazioni idrauliche di tali diaframmi e delle procedure di controllo.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/208514

Diaframmi plastici autoindurenti: fattori che ne influenzano le prestazioni idrauliche
Proc. Remtech 2014
Autore/i: Brianzoni, Virginia; DI SANTE, Marta; Fratalocchi, Evelina
Editore: DEA Edizioni
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: Nell’articolo sono discussi i principali fattori che influenzano le prestazioni idrauliche dei diaframmi autoindurenti, largamente impiegati con funzione di barriera idraulica passiva e per la cinturazione di siti contaminati. Le miscele cemento-bentonite offrono, infatti, ottime garanzie di tenuta idraulica, consentendo di raggiungere valori di conducibilità idraulica, k, ≤ 10-7 cm/s. Le prestazioni idrauliche dei diaframmi plastici sono influenzate da numerosi fattori legati alla composizione della miscela, alle modalità esecutive ed alle condizioni fisico-chimiche presenti in esercizio. Nell’articolo è messa in evidenza l’influenza del mix design, delle discontinuità di getto possibili durante la costruzione e della migrazione di sostanze potenzialmente aggressive, il cui studio è di fondamentale importanza per prevedere il comportamento idraulico della barriera e la sua durabilità.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/208513

Time of reactions in a lime treated clayey soil and influence of curing conditions on its microstructure and behaviour
APPLIED CLAY SCIENCE
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina; Mazzieri, Francesco; Pasqualini, Erio
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/199114

A possible approach for tier 2 risk assessment of polluted sites: framework, computer spreadsheet and application.
COMPUTERS AND GEOTECHNICS
Autore/i: DI SANTE, Marta; Mazzieri, Francesco; Fratalocchi, Evelina; Brianzoni, Virginia; Pasqualini, Erio
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/126074

Effetto di soluzioni acide di metalli pesanti sulla funzione di barriera di un geocomposito bentonitico
XXVII Convegno Nazionale Geosintetici
Autore/i: Mazzieri, Francesco; Fratalocchi, Evelina; Pasqualini, Erio
Editore: ATTUALE: -PATRON EDITORE S.R.L., VIA BADINI 12, QUARTO INFERIORE, BOLOGNA, ITALY -Il Sole 24 Ore Edagricole:via Goito 13, I 40139 Bologna Italy:011 39 051 6575891, EMAIL: abbona@gce.it, Fax: 011 39 051 6575900
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/198502

Reuse of Dredged Sediments in Cut-Offs
Lessons, Learnings and Challenges, Proc. 7 Intern.Congress on Environmental Geotechnics
Autore/i: Fratalocchi, Evelina; Cianca, Cristina; Preda, G.; Vanni, D.; Brianzoni, Virginia
Editore: EA, Engineers Australia
Classificazione: 2 Contributo in Volume
Abstract: Addition of dredged sediments in cementitious mixtures was investigated to be used in vertical and horizontal barriers for sediment confined disposal facilities or for reclaimed near-shore lands. Uncontaminated dredged sediments were added in different contents to typical cement-bentonite mixtures and to a patented cementitious mixture. Excellent hydraulic performance was obtained on all the mixtures (prepared in the laboratory) containing the sediments when permeated with tap water. Column tests performed using sea water as permeant showed that the mixtures can guarantee a good performance in the long term, depending on their components and dosages.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/207724

Impact of flocculants on the stress-strain behaviour of dredged sediments
Lessons, Learnings and Challenges (7 ICEG, Intern. Congress on Environmental Geotechnics)
Autore/i: Manzotti, A.; Van Impe, P. O.; Van Impe, W. F.; Fratalocchi, Evelina
Editore: EA, Engineers Australia
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/207913

Long term performance of cement-bentonite cut-offs in saline and acidic solutions
Challenges and Innovations in Geotechnics
Autore/i: Brianzoni, Virginia; Fratalocchi, Evelina; Pasqualini, Erio
Editore: Eds., Presses des Ponts
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The paper presents the results of a research aimed at evaluating and predicting the long term performance of CB mixtures in terms of hydraulic conductivity, k. A low k value is the necessary (even if not sufficient) requirement for a cut-off wall to isolate polluted sites. Aqueous sulphate solutions of different nature (acidic, saline) and concentrations were used as permeants in column tests performed for long time (one year or more) in order that full effects of physical and chemical reactions may occur. Results of these tests are here analysed mainly with the aim to find a criterion to predict how long a cement-bentonite cut-off wall can keep a proper hydraulic performance.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/208515

Permeation of two GCLs with an acidic metal-rich synthetic leachate
GEOTEXTILES AND GEOMEMBRANES
Autore/i: Mazzieri, Francesco; Di Emidio, G.; Fratalocchi, Evelina; DI SANTE, Marta; Pasqualini, Erio
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/126070

Migration of aggressive solutions through cement-bentonite slurry walls
Coupled Phenomena in Environmental Geotechnics (Invited Lecture)
Autore/i: Fratalocchi, Evelina; Brianzoni, Virginia; DI SANTE, Marta; Mazzieri, Francesco; Pasqualini, Erio
Editore: CRC PRESS - Taylor & Francis Group
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/117262

Analisi e modellazione della migrazione di soluzioni solfatiche attraverso miscele autoindurenti
IARG, 2011
Autore/i: Brianzoni, Virginia; Fratalocchi, Evelina
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: http://areeweb.polito.it/eventi/iarg2011/iargpdf/2/Brianzoni_Virginia.pdf
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/72252

"Discariche controllate e siti contaminati: aspetti critici e tecnologie" (RELAZIONE GENERALE- Sessione Interventi di Salvaguardia Ambientale )
l'innovazione tecnologica nell'ingegneria geotecnica
Autore/i: Pasqualini, Erio; Fratalocchi, Evelina; Mazzieri, Francesco
Editore: Edizioni AGI
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/55959

Migration of sulphate solutions through cement-bentonite diaphragms
Environmental Geotechnics for Sustainable Development (VI Int. Congress on Environmental Geotechnics)
Autore/i: Fratalocchi, Evelina; Giorgini, S.; Pasqualini, Erio
Editore: McGraw Hill
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/66596

Cob construction in Italy: some lessons learned from the past
SUSTAINABILITY
Autore/i: Quagliarini, Enrico; Stazi, Alessandro; Pasqualini, Erio; Fratalocchi, Evelina
Classificazione: 1 Contributo su Rivista
Abstract: Raw earth is a construction material unknown to most people. Nowadays, raw-earth constructions are an area of growing interest, both for rescuing the heritage and for a rediscovered environmentally friendly building and eco-sustainability material. However, because raw-earth constructions are a forgotten technique, we find problems of a lack of skilled people at all levels in this area, from designers to masons, as well as problems of how to carry out compatible conservation works on earthen heritage. This paper tries to fill the gap for a peculiar historic earthen building technology, namely cob (or bauge), which is present in Macerata in the center of Italy. Results are presented on regaining possession of the material and constructional aspects and their initial structural resources, and guidelines are given on how to improve the manufacturing process to reuse the cob technique for construction and for how to accurately work on it for a compatible and sustainable conservation
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/58570

Stability of waterfront retaining walls in seismic conditions
XVII International Conference on Soil Mechanics and Geotechnical Engineering - The Academia and Practice of Geotechnical Engineering
Autore/i: Bellezza, Ivo; Fentini, Roberta; Fratalocchi, Evelina; Pasqualini, Erio
Editore: IOS Press - Millpress
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: This paper analyses the stability of rigid waterfront structures, as caisson quay walls, by using the traditional pseudo-static method. The current procedures to calculate the forces acting on such structures under seismic condition are discussed. The case of partially submerged backfill is particularly focused and a new approach is proposed. Referring to stability against a sliding mode of failure of a typical waterfront wall, a comparison among different methods of analysis is presented and the effects of water to wall height ratio, excess pore water pressure and horizontal seismic coefficient are also highlighted.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/129074

Mix-design, construction and controls of lime stabilized embankments
Proc. XVII International Conference on Soil Mechanics and Geotechnical Engineering.
Autore/i: Fratalocchi, Evelina; Bellezza, Ivo; DI SANTE, Marta; Pasqualini, Erio
Editore: IOS Press - Millpress
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/129075

Il ritardo nella compattazione di miscele terreno-calce: effetti sulle caratteristiche idrauliche e meccaniche
IARG 2009
Autore/i: DI SANTE, Marta; Fratalocchi, Evelina; Pasqualini, Erio
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/58594

Long term performance of cut-off walls in sulphate solutions
II International Conference on New Developments in Soil Mechanics and Geotechnical Engineering
Autore/i: Fratalocchi, Evelina; Pasqualini, Erio
Editore: Near East University Press
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/58586

Efficienza idraulica di diaframmi plastici con discontinuità di getto
IARG 2009
Autore/i: Brianzoni, Virginia; Fratalocchi, Evelina
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/58592

TC5-Environmental geotechnics: Activities in the period 2005-2009
The Academia and Practice of Geotechnical Engineering
Autore/i: Manassero, M.; Fratalocchi, E.
Editore: IOS Press
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/282730

Capitolo 4 - Parte 2. Discussione dei risultati
Architetture in terra a Macerata: il quartiere di Villa Ficana. Analisi conoscitiva per il recupero
Autore/i: Quagliarini, Enrico; Fratalocchi, Evelina
Editore: ALINEA EDITRICE srl
Luogo di pubblicazione: firenze
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/82661

Capitolo 2 - Parte 2. Individuazione di una terra "compatibile" per gli interventi
Architetture in terra a Macerata: il quartiere di Villa Ficana. Analisi conoscitiva per il recupero
Autore/i: Quagliarini, Enrico; Fratalocchi, Evelina
Editore: ALINEA EDITRICE srl
Luogo di pubblicazione: firenze
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/82656

Capitolo 5 - Parte 2. Lavorazioni e costi d'intervento
Architetture in terra a Macerata: il quartiere di Villa Ficana. Analisi conoscitiva per il recupero
Autore/i: Quagliarini, Enrico; Fratalocchi, Evelina; Pasqualini, Erio
Editore: ALINEA EDITRICE srl
Luogo di pubblicazione: firenze
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/82662

Diaframmi verticali per il contenimento degli inquinanti nel sottosuolo
Smaltimento dei Rifiuti e Protezione delle Coste (XXI Conv. Naz. Geosintetici)
Autore/i: Fratalocchi, Evelina; Pasqualini, Erio
Editore: Patron
Luogo di pubblicazione: Bologna
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/58584

Capitolo 1 - Parte 2. Caratterizzazione della terra che costituisce le case.
Architetture in terra a Macerata: il quartiere di Villa Ficana. Analisi conoscitiva per il recupero.
Autore/i: Quagliarini, Enrico; Fratalocchi, Evelina; Pasqualini, Erio
Editore: ALINEA EDITRICE srl
Luogo di pubblicazione: firenze
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/82654

Capitolo 3 - Parte 2. Utilizzo di procedure meccanizzate per la realizzazione dei "pani" e successiva attività di laboratorio
Architetture in terra a Macerata: il quartiere di Villa Ficana. Analisi conoscitiva per il recupero
Autore/i: Quagliarini, Enrico; Fratalocchi, Evelina
Editore: ALINEA EDITRICE srl
Luogo di pubblicazione: firenze
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/82658

Vertical barriers for side containment
XXI CGT Conferenze di Geotecnica di Torino - Geosynthetics and Environment
Autore/i: Fratalocchi, Evelina; Pasqualini, Erio
Editore: Patron Editore
Luogo di pubblicazione: Bologna
Classificazione: 2 Contributo in Volume
Abstract: Relazione su invito
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/52752

Geo-environmental characterisation of an urban MGP site
XIV European Conference on Soil Mechanics and Geotechnical Engineering, XIV ECSMGE
Autore/i: Fratalocchi, Evelina; Pasqualini, Erio
Editore: Millpress
Luogo di pubblicazione: ROTTERDAM
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/53491

Effectiveness of cement on hydraulic conductivity of compacted soil-cement mixtures
GROUND IMPROVEMENT
Autore/i: Bellezza, Ivo; Fratalocchi, Evelina
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/129073

Performance of a cement-bentonite cut-off wall in an acidic sulphate environment
5th International Congress on Environmental Geotechnics, V ICEG
Autore/i: Fratalocchi, Evelina; Pasqualini, Erio; Balboni, P.
Editore: Thomas Telford
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: An experimental investigation on contaminant-cement bentonite (CB) mixture interactions is described and discussed. The mixture is a typical water-cement-bentonite mixture to be used for a cut-off wall to isolate a hazardous waste landfill. The landfill leachate is a very acidic inorganic solution that can be very aggressive for cement mixtures. Laboratory tests were performed on samples both prepared in the laboratory and taken from in situ trial panels. The samples were stored and tested under different chemical conditions to simulate those expected in the field and to accelerate any chemical reaction. The results showed that immersion tests can be too severe for assessing the efficiency of a cement-bentonite cut-off wall; hydraulic conductivity tests performed with leachate under a high hydraulic gradient and chemical conditions that are more aggressive than those expected in the field may accelerate the contaminant-mixture interaction thus allowing assessment of the long-term efficiency of a cement-bentonite barrier. From a practical point of view, the results of all the tests, but primarily the hydraulic conductivity tests, indicated good long-term hydraulic performance of the mixture.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/52863

Traditional Barriers
Environmental Geotechnics
Autore/i: Benson, C. H.; Bouazza, A; Fratalocchi, Evelina; Manassero, M.
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/41638

Optimization of drawdown procedures of partially submerged slopes
Proc. XVI International Conference on Soil Mechanics and Geotechnical Engineering
Autore/i: Bellezza, Ivo; Fratalocchi, Evelina
Editore: Millpress Science Publishers
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/129077

TC5-Environmental geotechnics: Workshop report
Proc. 16 ICSMGE: Geotechnology in Harmony with the Global Environment
Autore/i: Manassero, M.; Shackelford, C. D.; Fratalocchi, E.
Editore: Millpress
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/282732

Administrative report: TC5-Environmental geotechnics
Proc. 16 ICSMGE: Geotechnology in Harmony with the Global Environment
Autore/i: Manassero, M.; Shackelford, C. D.; Fratalocchi, E.
Editore: Millpress
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/282731

Permeability of compacted mixtures of cement and sandy soils
Ground Improvement Techniques (VI Int. Conf.)
Autore/i: Bellezza, Ivo; Fratalocchi, Evelina
Editore: CI-Premier Pte Ltd.
Luogo di pubblicazione: Singapore
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65420

Previsione della permeabilità delle miscele compattate terreno-cemento
Atti IARG - Incontro Annuale Ricercatori Geotecnica
Autore/i: Bellezza, Ivo; Fratalocchi, Evelina
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65440

Durability assessment of a confinement cut-off wall for a phosphogypsum landfill
XVI International Conference on Soil Mechanics and Geotechnical Engineering, XVI ICSMGE
Autore/i: Fratalocchi, Evelina; Pasqualini, Erio; Balboni, P.; Mozzi, R.
Editore: Millpress
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: An experimental investigation on the interaction between a contaminant and cement-bentonite mixtures is described and discussed. The best mixture had to be selected to construct a self-hardening cut-off wall to isolate a hazardous waste landfill. The contaminant (i.e. the landfill leachate) is a very acidic inorganic solution which could adversely affect the hydraulic performance of cement mixtures. Immersion and permeation tests were performed to investigate the mixture performance under very aggressive environmental conditions in order to accelerate the effects of chemical reactions. The results of the tests are discussed, showing that the mixture-leachate interaction does not result in a worsen hydraulic performance. An assessment of the durability of the mixture is given.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/53575

The effect of soil suction on stability of partially submerged slopes
International Conference "From Experimental Evidence towards Numerical Modeling of Unsaturated Soils"
Autore/i: Bellezza, Ivo; Fratalocchi, Evelina
Editore: Springer
Luogo di pubblicazione: Berlin
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65425

Water permeability of unsaturated compacted kaolin
From Experimental Evidence towards Numerical Modeling of Unsaturated Soils
Autore/i: Peroni, N.; Fratalocchi, Evelina; Tarantino, A.
Editore: Springer
Luogo di pubblicazione: Berlin
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65426

Laboratory procedures to evaluate the efficiency of permeable reactive barriers
Environmental Geotechnics and Ground Improvement
Autore/i: Fratalocchi, Evelina; Pasqualini, Erio; Tazioli, Alberto; DI EMIDIO, G.; VAN IMPE, P.
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/43109

Messa in sicurezza permanente di una discarica di fosfogessi
XXII Convegno Nazionale di Geotecnica
Autore/i: Fratalocchi, E.; Spaccazocchi, M.; Pasqualini, Erio; Balboni, P.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/45063

Progettazione degli interventi di contenimento
Manuale sul disinquinamento. La gestione dei siti inquinati, dalle indagini alla bonifica
Autore/i: Fratalocchi, Evelina; Pasqualini, Erio; Peroni, N.
Editore: Pitagora
Luogo di pubblicazione: BOLOGNA
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/51802

Man made deposits: investigation and testing
XIII Europ. Conf. Soil Mechanics and Geotechnical Engineering, XIII ECSMGE
Autore/i: Pasqualini, Erio; Fratalocchi, Evelina; Mazzieri, Francesco
Editore: The Czech Geotechnical Society, CICE
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/53046

Hydraulic efficiency of CB diaphragms made of differently aged mixtures
Geotechnical problems with man-made and man influenced grounds (XIII European Conf. Soil Mech. Geotechnical Engineering)
Autore/i: Fratalocchi, Evelina; Pasquali, R.; Pasqualini, Erio
Editore: The Czech Geotechnical Society CICE
Luogo di pubblicazione: Prague
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/43054

In situ/ex situ rapid field screening of manufactered gas plant soil contamination
RICICLA: FIERA INTERNAZIONALE DEL RECUPERO DI MATERIA ED ENERGIA E DELLE SOSTENIBILITÀ AMBIENTALI
Autore/i: Fava, Gabriele; Fratalocchi, Evelina; Pasqualini, Erio; Ruello, Maria Letizia
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/47185

Stability of liners: some particular issues
IV International Congress on Environmental Geotechnics, IV ICEG
Autore/i: Pasqualini, Erio; Fratalocchi, Evelina; Stella, M.
Editore: Balkema
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/52785

Reactive barriers for remediation of polluted soils: a case study
Environmental Geotechnics (IV Intern. Congress on Environmental Geotechnics)
Autore/i: Tazioli, Alberto; Fratalocchi, Evelina; Pasqualini, Erio
Editore: Balkema
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/43112

Ottimizzazione del progetto di barriere compattate terreno-cemento
Atti IARG - Incontro annuale Ricercatori Geotecnica
Autore/i: Bellezza, Ivo; Fratalocchi, Evelina
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65438

IN SITU/EX SITU RAPID FIELD SCREENING OF MANUFACTURED GAS PLANT SOIL CONTAMINATION
RICICLA 2002
Autore/i: Fava, Gabriele; Fratalocchi, E.; Pasqualini, Erio; Ruello, Maria Letizia
Editore: MAGGIOLI S.P.A
Luogo di pubblicazione: RN
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/38440