Solidification of dredged marine clay under varied mix conditions: A laboratory study

C. M. Chan, Yoshiaki Kikuchi, T. Mizutani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Dredged marine clay, treated with binders like cement, can be reused in various geotechnical applications as sound geomaterial. By adding and mixing binders with the clay, the soft material can be transformed into stronger and stiffer stratum for load bearing. Admittedly advancement in machinery and computerized operations have significantly improved the mixing process, but individual factors contributing to the mixing condition still leave room for further refinement of the effectiveness. This paper describes a series of laboratory tests, mainly unconfined compressive strength tests complemented with X-ray CT (Computer Tomography) scans, conducted on cement-stabilised dredged clay specimens of varied uniformity. The variation in uniformity was introduced via different Water/Cement (W/C) ratios, number of cement layers in the initial state as well as the number of mixing cycles adopted. The wide spectrum of specimens tested allowed a comprehensive cross-comparison of the results, which showed that while mixing effort is crucial, the initial conditions of clay's consistency and binder's distribution do affect the solidification mechanism to certain extents.

Original languageEnglish
Title of host publicationAdvances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012
Pages510-515
Number of pages6
Publication statusPublished - 19 Oct 2012
Event2nd International Conference on Transportation Geotechnics, ICTG 2012 - Hokkaido, Japan
Duration: 10 Sep 201212 Sep 2012

Publication series

NameAdvances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012

Conference

Conference2nd International Conference on Transportation Geotechnics, ICTG 2012
CountryJapan
CityHokkaido
Period10/09/1212/09/12

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Chan, C. M., Kikuchi, Y., & Mizutani, T. (2012). Solidification of dredged marine clay under varied mix conditions: A laboratory study. In Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012 (pp. 510-515). (Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012).