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Study on the properties of Gaomiaozi bentonite as the buffer/backfilling materials for HLW disposal

Abstract

Systematic studies including mineral composition and structure, physico- chemical properties and thermal properties have been conducted on Gaomiaozi bentonite, Xinghe County, Inner Mongolia Autonomous Region. The compaction characteristics of bentonite and the influence of additive to bentonite have been discussed. The analysis of mineral composition and structure show that the bentonite ores are dominated by montmorillonite. Preliminary studies of the characteristics of ores indicated that No-type bentonite from the deposit has good absorption, excellent swelling and high cation exchangeability. The compressibility of bentonite will be improved by adding the additives such as quartz sand. The studies indicated that the characteristics of Gaomiaozi bentonite can satisfy the requirement of buffer/backfilling materials for HLW repository and the ores can be selected as the preferential candidate to provide buffer/backfill- ing materials for HLW repository in China. (authors)
Authors:
Xiaodong, Liu; [1]  Taian, Luo; Guoping, Zhu; Qingchun, Chen [1] 
  1. East China Inst. of Technology, Fuzhou (China)
Publication Date:
Dec 15, 2007
Product Type:
Technical Report
Report Number:
CNIC-01922; ECIT-0001
Resource Relation:
Other Information: 11 figs., 6 tabs., 25 refs
Subject:
58 GEOSCIENCES; ABSORPTION; BACKFILLING; BENTONITE; BUFFERS; CHEMICAL COMPOSITION; CHEMICAL PROPERTIES; CHINA; COMPRESSIBILITY; HIGH-LEVEL RADIOACTIVE WASTES; ION EXCHANGE; MONTMORILLONITE; PHYSICAL PROPERTIES; QUARTZ; RADIOACTIVE WASTE DISPOSAL; THERMAL DEGRADATION; THERMODYNAMIC PROPERTIES; UNDERGROUND DISPOSAL
OSTI ID:
21104130
Research Organizations:
Chinese Nuclear Information Centre, Beijing (China)
Country of Origin:
China
Language:
Chinese
Other Identifying Numbers:
Other: ISBN 978-7-5022-4053-0; TRN: CN0803237113967
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
17 pages
Announcement Date:
Dec 12, 2008

Citation Formats

Xiaodong, Liu, Taian, Luo, Guoping, Zhu, and Qingchun, Chen. Study on the properties of Gaomiaozi bentonite as the buffer/backfilling materials for HLW disposal. China: N. p., 2007. Web.
Xiaodong, Liu, Taian, Luo, Guoping, Zhu, & Qingchun, Chen. Study on the properties of Gaomiaozi bentonite as the buffer/backfilling materials for HLW disposal. China.
Xiaodong, Liu, Taian, Luo, Guoping, Zhu, and Qingchun, Chen. 2007. "Study on the properties of Gaomiaozi bentonite as the buffer/backfilling materials for HLW disposal." China.
@misc{etde_21104130,
title = {Study on the properties of Gaomiaozi bentonite as the buffer/backfilling materials for HLW disposal}
author = {Xiaodong, Liu, Taian, Luo, Guoping, Zhu, and Qingchun, Chen}
abstractNote = {Systematic studies including mineral composition and structure, physico- chemical properties and thermal properties have been conducted on Gaomiaozi bentonite, Xinghe County, Inner Mongolia Autonomous Region. The compaction characteristics of bentonite and the influence of additive to bentonite have been discussed. The analysis of mineral composition and structure show that the bentonite ores are dominated by montmorillonite. Preliminary studies of the characteristics of ores indicated that No-type bentonite from the deposit has good absorption, excellent swelling and high cation exchangeability. The compressibility of bentonite will be improved by adding the additives such as quartz sand. The studies indicated that the characteristics of Gaomiaozi bentonite can satisfy the requirement of buffer/backfilling materials for HLW repository and the ores can be selected as the preferential candidate to provide buffer/backfill- ing materials for HLW repository in China. (authors)}
place = {China}
year = {2007}
month = {Dec}
}