长沙理工大学学报（自然科学版）2016，Vol.13Issue(4)：15-22,8.
不同掺料泡沫轻质土的强度特性
Strength characteristics of foam lightweight soil with different admixture
摘要
Abstract
In order to investigate the strength characteristics of Foam Lightweight Soil com-posed of the same type of mixed material but different amounts,and with the same amounts but different mixed materials type.The foam lightweight soil samples composed of mineral powder,fly ash,slag and kaolin were selected individually to be conducted under uncon-fined compressive strength tests and direct shear tests for 7 and 28 day period.The tendency of the unconfined compressive strength,shear strength and shear strength of foamed light-weight soil composed of the same type of mixed material but different amounts,and with the same amounts but different mixed materials type were revealed.The relationship be-tween compressive strength and cohesion of foamed light soil is also established.The results show that the compressive strength and shear strength of foam lightweight soil are gradual-ly reducing with the increase of the ratio of admixture in the cementitious.Cohesion is the main source of shear strength for foamed light soils,which has good fitting of linear corre-lation with compressive strength.At the same time,it is found that the foamed lightweight soil with mineral powder or fly ash perform higher strength.关键词
道路工程/不同掺料比/泡沫轻质土/抗压强度/抗剪强度/粘聚力Key words
road engineering/admixture/different mixing ratio/foam lightweight soil/compressive strength/shear strength/cohesion分类
交通工程引用本文复制引用
陈金威,刘勇,石苏意,关宏信..不同掺料泡沫轻质土的强度特性[J].长沙理工大学学报（自然科学版）,2016,13(4):15-22,8.基金项目
湖南省自然科学基金资助项目(13JJ3070) （13JJ3070）
内蒙古自治区交通运输厅建设科技项目(NJ-2015-35) （NJ-2015-35）
