Characterization of the secondary swelling of compacted Maryland clay

This paper presents the result of a multi-scale experimental investigation on the phenomenon of secondary swelling. Specimens of compacted Maryland clay were prepared under different initial conditions (void ratio and water content), loaded at different levels of vertical stress and inundated until...

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Main Authors: Yuan Shengyang, Liu Xianfeng, Sloan Scott, Buzzi Olivier
Format: Article
Language:English
Published: EDP Sciences 2016-01-01
Series:E3S Web of Conferences
Online Access:http://dx.doi.org/10.1051/e3sconf/20160909004
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author Yuan Shengyang
Liu Xianfeng
Sloan Scott
Buzzi Olivier
author_facet Yuan Shengyang
Liu Xianfeng
Sloan Scott
Buzzi Olivier
author_sort Yuan Shengyang
collection DOAJ
description This paper presents the result of a multi-scale experimental investigation on the phenomenon of secondary swelling. Specimens of compacted Maryland clay were prepared under different initial conditions (void ratio and water content), loaded at different levels of vertical stress and inundated until secondary swelling was observed. One test was also performed with suction control and incremental swelling. These tests were complemented by micro structural analyses via mercury intrusion porosimetry. The coefficient of secondary swelling, defined as the gradient of the evolution of void ratio with logarithm of time was calculated and correlated to the macro scale strain. Several trends were observed and it was showed that, under low confinement, the secondary swelling mostly takes place in the macro pores.
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spelling doaj.art-efa7fd34313a471e893777b09b9716b12022-12-21T19:54:30ZengEDP SciencesE3S Web of Conferences2267-12422016-01-0190900410.1051/e3sconf/20160909004e3sconf_eunsat2016_09004Characterization of the secondary swelling of compacted Maryland clayYuan Shengyang0Liu Xianfeng1Sloan Scott2Buzzi Olivier3Priority Research Centre for Geotechnical and Materials Modelling, School of Engineering, The University of NewcastlePriority Research Centre for Geotechnical and Materials Modelling, School of Engineering, The University of NewcastlePriority Research Centre for Geotechnical and Materials Modelling, School of Engineering, The University of NewcastlePriority Research Centre for Geotechnical and Materials Modelling, School of Engineering, The University of NewcastleThis paper presents the result of a multi-scale experimental investigation on the phenomenon of secondary swelling. Specimens of compacted Maryland clay were prepared under different initial conditions (void ratio and water content), loaded at different levels of vertical stress and inundated until secondary swelling was observed. One test was also performed with suction control and incremental swelling. These tests were complemented by micro structural analyses via mercury intrusion porosimetry. The coefficient of secondary swelling, defined as the gradient of the evolution of void ratio with logarithm of time was calculated and correlated to the macro scale strain. Several trends were observed and it was showed that, under low confinement, the secondary swelling mostly takes place in the macro pores.http://dx.doi.org/10.1051/e3sconf/20160909004
spellingShingle Yuan Shengyang
Liu Xianfeng
Sloan Scott
Buzzi Olivier
Characterization of the secondary swelling of compacted Maryland clay
E3S Web of Conferences
title Characterization of the secondary swelling of compacted Maryland clay
title_full Characterization of the secondary swelling of compacted Maryland clay
title_fullStr Characterization of the secondary swelling of compacted Maryland clay
title_full_unstemmed Characterization of the secondary swelling of compacted Maryland clay
title_short Characterization of the secondary swelling of compacted Maryland clay
title_sort characterization of the secondary swelling of compacted maryland clay
url http://dx.doi.org/10.1051/e3sconf/20160909004
work_keys_str_mv AT yuanshengyang characterizationofthesecondaryswellingofcompactedmarylandclay
AT liuxianfeng characterizationofthesecondaryswellingofcompactedmarylandclay
AT sloanscott characterizationofthesecondaryswellingofcompactedmarylandclay
AT buzziolivier characterizationofthesecondaryswellingofcompactedmarylandclay