SALINITY EFFECT ON SWELLING CHARACTERISTICS OF COMPACTED BENTONITE

被引：0
|
作者：
Shirazi, S. M. [1 ]
Wiwat, S. [2 ]
Kazama, H. [2 ]
Kuwano, J. [2 ]
Shaaban, M. G. [1 ]
机构：
[1] Univ Malaya, Fac Engn, Dept Civil Engn, Kuala Lumpur 50603, Malaysia
[2] Saitama Univ, Sakura Ku, Saitama 3388570, Japan
来源：
ENVIRONMENT PROTECTION ENGINEERING | 2011年 / 37卷 / 02期
基金：
日本学术振兴会;
关键词：
Bentonite - Saline water - Swelling - Waste disposal;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Swelling characteristics of compacted bentonite is the most important factor for nuclear waste disposal facilities. Salinity effect on swelling behaviour of compacted bentonite was investigated experimentally. A series of one dimensional swelling deformation tests have been performed. The tests were conducted for various initial dry densities from 1.33 g/cm(3) to 1.90 g/cm(3) for compacted bentonite saturated with NaCl of various concentrations in solution from 0 to 4.0 M. It Was found that initial dry density and concentration of NaCl strongly influence the swelling rate of bentonite. The swelling rate of bentonite decreases with increasing the concentration of NaCl. Swelling rate depends on the concentration of NaCl more than on initial dry density and loading effect. Bentonite may change from highly swelled material to coagulate in saline water. Liquid limit of bentonite is also remarkably decreased with the change of liquid from distilled water to saline one, while the plastic limit is slightly increased.
引用
收藏
页码：65 / 74
页数：10
相关论文
共 50 条
  • [41] Elevated temperature effects on swelling pressure of compacted bentonite
    He, Linhua
    Sedighi, Majid
    Mosleh, Mojgan Hadi
    Jivkov, Andrey
    Liu, Jiangfeng
    DEEP UNDERGROUND SCIENCE AND ENGINEERING, 2025,
  • [42] Estimation of the swelling strain and swelling pressure of compacted bentonite using electrical conductivity
    Won, Jongmuk
    Kim, Jang-Un
    Choo, Hyunwook
    APPLIED CLAY SCIENCE, 2023, 242
  • [43] Thermodynamic Response of Crystalline Swelling and Double-Layer Swelling of Compacted Bentonite
    Chen, Yonggui
    Liu, Lina
    PROCEEDINGS OF GEOSHANGHAI 2018 INTERNATIONAL CONFERENCE: MULTI-PHYSICS PROCESSES IN SOIL MECHANICS AND ADVANCES IN GEOTECHNICAL TESTING, 2018, : 129 - 138
  • [44] Effect of multiple-ion interaction on the swelling pressure of compacted Gaomiaozi (GMZ) bentonite
    Liu, Li-Na
    Chen, Yong-Gui
    Gao, Wen-Sheng
    BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2023, 82 (03)
  • [45] Temperature and density effect on swelling characteristics and permeability of bentonite
    Graduate School of Science and Engineering, Saitama University, Saitama-shi
    338-8570, Japan
    不详
    338-8570, Japan
    不详
    Aust. Geomech. J., 2006, 2 (89-99):
  • [46] Swelling characteristics of compacted lateritic soil–bentonite mixtures subjected to municipal waste leachate contamination
    Agapitus Ahamefule Amadi
    Environmental Earth Sciences, 2013, 70 : 2437 - 2442
  • [47] Residual lateral stress effect on the swelling pressure measurements of compacted bentonite/claystone mixture
    Wang, Qiong
    Su, Wei
    Cui, Yu-Jun
    Ye, Wei-Min
    Chen, Yong-Gui
    ENGINEERING GEOLOGY, 2021, 295
  • [48] Research on water retention and microstructure characteristics of compacted GMZ bentonite under free swelling conditions
    Liu, Jiang-Feng
    Ni, Hong-Yang
    Chen, Yong-Gui
    Wu, Yu
    Song, Shuai-Bing
    Cao, Xu-Lou
    Bao, Wen-Bo
    Pu, Hai
    Mao, Xian-Biao
    ENVIRONMENTAL EARTH SCIENCES, 2018, 77 (16)
  • [49] Swelling characteristics of compacted GMZ bentonite-sand mixtures as a buffer/backfill material in China
    Cui, Su-Li
    Zhang, Hu-Yuan
    Zhang, Ming
    ENGINEERING GEOLOGY, 2012, 141 : 65 - 73
  • [50] Effect of multiple-ion interaction on the swelling pressure of compacted Gaomiaozi (GMZ) bentonite
    Li-Na Liu
    Yong-Gui Chen
    Wen-Sheng Gao
    Bulletin of Engineering Geology and the Environment, 2023, 82
12345