辐射防护2012，Vol.32Issue(5)：289-295,7.
静力压实膨润土-砂混合物膨胀特性研究
Experimental Study of Swelling Character for Press-Compacted Bentonite-Sand Mixture
摘要
Abstract
To investigate the swelling characters of the specimen for press-compacted bentonite-sand mixtures,laboratory tests were conducted on pressed-compacted mixture of GMZ bentonite and quartz sand in different sand content.Results obtained were contrasted with the data for hammer-compacted received before;they indicated that the test points of swelling character for pressed-compacted mixture with high density were equally distributed on the fitted curve obtained by hammer-compacted mixture with low density.This proved that the swelling characters of the test specimens made by both hammercompacted and press-compacted were of complete consistency,so these two modes for constructing buffer/backfill material can be selected free as needed.Simultaneously,the regression relationships that with the increase of dry density,the max swelling pressure increase exponentially while the max swelling strain increase linearly were verified,also it was proved that the variation trend of swelling character was identical for both high and low density range with the change of sand addition.关键词
高放废物/膨润土-砂混合物/动力击实/静力压实/膨胀特性Key words
HLW/bentonite-sand mixture/dynamic-compacted/static-compacted/swelling character分类
能源科技引用本文复制引用
崔素丽,张虎元..静力压实膨润土-砂混合物膨胀特性研究[J].辐射防护,2012,32(5):289-295,7.基金项目
国防科工委高放废物地质处置研究开发项目 （）
