Swelling characteristics of bentonites in artificial seawater-Reference-Cited by-同舟云学术

Swelling characteristics of bentonites in artificial seawater

Published:2009-02 Issue:2 Volume:46 Page:177-189
ISSN:0008-3674
Container-title:Canadian Geotechnical Journal
language:en
Short-container-title:Can. Geotech. J.

Author:

Komine Hideo¹,Yasuhara Kazuya¹,Murakami Satoshi¹

Affiliation:

1. Department of Urban and Civil Engineering, Ibaraki University, 4-12-1, Nakanarusawa-cho, Hitachi-city, Ibaraki 316-8511, Japan.

Abstract

Bentonite is currently designated for use as a buffer material for the repository of high-level radioactive waste because such a material requires swelling characteristics to seal the waste. A high-level radioactive waste disposal facility may be built in a coastal area of Japan because transportation of this waste by ships is feasible. Therefore, it is important to investigate the effects of seawater on a bentonite-based buffer. This study is intended to investigate the influence of seawater on the swelling pressure and swelling deformation characteristics of five common types of bentonite. The experiments described herein clarify the relations between the influence of seawater grade and compaction density, type of exchangeable cation, montmorillonite content of the bentonite, and vertical pressure condition. Based on experimental results, suitable specifications have been defined for a bentonite-based buffer that can withstand the effects of seawater.

Publisher

Canadian Science Publishing

Subject

Civil and Structural Engineering,Geotechnical Engineering and Engineering Geology

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/T08-120

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