THERMAL INFLUENCES ON SWELLING-PRESSURE AND SWELLING-DEFORMATION OF BENTONITES AND ITS FACTORS

• KOMINE Hideo

  茨城大学　工学部都市システム工学科

• OHASHI Ryoya

  茨城県土浦土木事務所

• YASUHARA Kazuya

  茨城大学　工学部都市システム工学科

• MURAKAMI Satoshi

  茨城大学　工学部都市システム工学科

Bibliographic Information

Other Title

• ベントナイトの膨潤圧・膨潤変形特性に及ぼす温度履歴の影響とその要因

Abstract

In geological disposal of high-level radioactive wastes, bentonite based buffer fills up the space between waste-container and bedrock, because it has a swelling property and low permeability. High-level radioactive wastes generate decay-heat, and it is apprehended that the swelling characteristics of bentonite declines by the decay-heat of wastes. To contribute to this problem, this study investigated swelling-pressure and swelling-deformation of bentonites experienced some thermal histories in the laboratory. Moreover, this study discusses mechanism of thermal influences to bentonite-swelling by considering the above experimental results with chemical analyses about heated bentonites.

Journal

• Doboku Gakkai Ronbunshuu C

  Doboku Gakkai Ronbunshuu C 63 (3), 731-741, 2007

  Japan Society of Civil Engineers

Keywords

• high-level radioactive waste
• bentonite
• swelling
• thermal history

Details

• CRID: 1390282680232363136
• NII Article ID: 130004468228
• NII Book ID: AA12131726
• DOI: 10.2208/jscejc.63.731
• ISSN: 1880604X
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed