Effect of very high compaction pressures on the physical and mechanical properties of earthen materials

The paper compares the effect of different compaction procedures on the porosity and mechanical characteristics of earthen materials. In a first series of tests, a very high static pressure, up to 100 MPa, is applied to the soil for a sufficient period of time to allow consolidation (hyper-compactio...

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Main Authors: Bruno Agostino Walter, Gallipoli Domenico, Perlot Céline, Mendes Joao
Format: Article
Language:English
Published: EDP Sciences 2016-01-01
Series:E3S Web of Conferences
Online Access:http://dx.doi.org/10.1051/e3sconf/20160914004
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author Bruno Agostino Walter
Gallipoli Domenico
Perlot Céline
Mendes Joao
author_facet Bruno Agostino Walter
Gallipoli Domenico
Perlot Céline
Mendes Joao
author_sort Bruno Agostino Walter
collection DOAJ
description The paper compares the effect of different compaction procedures on the porosity and mechanical characteristics of earthen materials. In a first series of tests, a very high static pressure, up to 100 MPa, is applied to the soil for a sufficient period of time to allow consolidation (hyper-compaction). This method produces materials with very high densities up to 2300 kg/m3 and good mechanical properties, which are suitable for the construction of masonry structures. In a second series of tests, the soil is compacted according to the standard Proctor method, which is the reference compaction procedure for the design of geotechnical fills such as dams and embankments. In the Proctor method, the soil is dynamically compressed by means of a much lower effort compared to hyper-compaction. All specimens are equalized under identical hygro-thermal conditions and subjected to unconfined compression tests to measure stiffness and strength. It is shown that hyper-compacted specimens exhibit physical and mechanical properties that are comparable with those of traditional building materials for masonry structures. Finally, mercury intrusion porosimetry tests are performed to study the effect of the compaction method on the pore structure of the material.
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spelling doaj.art-68e1e6ec65d148fab67d2308a2b2b43f2022-12-21T23:31:51ZengEDP SciencesE3S Web of Conferences2267-12422016-01-0191400410.1051/e3sconf/20160914004e3sconf_eunsat2016_14004Effect of very high compaction pressures on the physical and mechanical properties of earthen materialsBruno Agostino Walter0Gallipoli Domenico1Perlot Céline2Mendes Joao3Université de Pau et des Pays de l ’Adour, Laboratoire SIAMEUniversité de Pau et des Pays de l ’Adour, Laboratoire SIAMEUniversité de Pau et des Pays de l ’Adour, Laboratoire SIAMEUniversité de Pau et des Pays de l ’Adour, Laboratoire SIAMEThe paper compares the effect of different compaction procedures on the porosity and mechanical characteristics of earthen materials. In a first series of tests, a very high static pressure, up to 100 MPa, is applied to the soil for a sufficient period of time to allow consolidation (hyper-compaction). This method produces materials with very high densities up to 2300 kg/m3 and good mechanical properties, which are suitable for the construction of masonry structures. In a second series of tests, the soil is compacted according to the standard Proctor method, which is the reference compaction procedure for the design of geotechnical fills such as dams and embankments. In the Proctor method, the soil is dynamically compressed by means of a much lower effort compared to hyper-compaction. All specimens are equalized under identical hygro-thermal conditions and subjected to unconfined compression tests to measure stiffness and strength. It is shown that hyper-compacted specimens exhibit physical and mechanical properties that are comparable with those of traditional building materials for masonry structures. Finally, mercury intrusion porosimetry tests are performed to study the effect of the compaction method on the pore structure of the material.http://dx.doi.org/10.1051/e3sconf/20160914004
spellingShingle Bruno Agostino Walter
Gallipoli Domenico
Perlot Céline
Mendes Joao
Effect of very high compaction pressures on the physical and mechanical properties of earthen materials
E3S Web of Conferences
title Effect of very high compaction pressures on the physical and mechanical properties of earthen materials
title_full Effect of very high compaction pressures on the physical and mechanical properties of earthen materials
title_fullStr Effect of very high compaction pressures on the physical and mechanical properties of earthen materials
title_full_unstemmed Effect of very high compaction pressures on the physical and mechanical properties of earthen materials
title_short Effect of very high compaction pressures on the physical and mechanical properties of earthen materials
title_sort effect of very high compaction pressures on the physical and mechanical properties of earthen materials
url http://dx.doi.org/10.1051/e3sconf/20160914004
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