A unified state parameter for modeling undrained shear behaviors of cementitous material admixed clay
Conference proceedings article
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Publication Details
Author list: Jongpradist P., Youwai S., Kongkitkul W.
Publisher: Hindawi
Publication year: 2009
Volume number: 1
Start page: 257
End page: 260
Number of pages: 4
ISBN: 9781607500315
ISSN: 0146-9428
eISSN: 1745-4557
Languages: English-Great Britain (EN-GB)
Abstract
Portland cement and pozzolanic materials are recently widely used for subsoil improvement, either by cement stabilization or cement columns. However, the requirement of rational engineering approach for the improvement by these materials has revealed several deficiencies in the current design procedures, since there is no single parameter that can represent the overall mechanical behaviors of such mixed materials. This paper presents a physical parameter, termed the 'state parameter', which could appropriately represent the dependency of the undrained shear behaviors of cementitious-material admixed clay on different mixing components and shear stress level. Experimental data from unconfined compression and undrained triaxial compression tests on cementitious-material admixed clay at confining pressures ranging from 50 to 200 kPa are presented and the significant engineering parameters of undrained shear behaviors could be captured to be dependent on the proposed state parameter. ฉ 2009 IOS Press.
Keywords
Cementious-material admixed clay, state parameter, Undrained shear behavior
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