南水北调与水利科技Issue(1)：119-123,130,6.DOI:10.13476/j.cnki.nsbdqk.2016.01.020
压实水泥湿陷性黄土的力学特性
Mechanical properties of compacted cement loess
摘要
Abstract
In order to expand the application of compact ed soil- cement in loess foundation treatment, taking cement dosage, f ly ash dosage and water content as factors, an orthogonal experimental scheme L9 ( 34 ) w as carried out to study the mechanical properties of com pacted cement loess at 28d and 56d. The effectof various factors on dry densit y, strength and elastic modulus, mechanism, relationship bet ween elastic modulus and strength were analyzed. The results show ed that there was an extremely significant influence of fly ash dosage on dry density of compacted cement loess, followed by w ater content and but not found of cement dosage. The inf luence of fly ash dosage should be taken into account when maximum dry density and optimum w ater contentof cement soil are determined, the influence of cement dosage can be ignored. Fly ash can significantly increase the st rength and elastic modulus of compacted cement loess, especially the later st rength. The influence of cement dosage on st rength and elastic modulus of compacted cement loess at two ages is ext remely significant, as well as the fly ash dosage in ad-dition, the wat er content also show ed a significant influence effect.关键词
水泥黄土/强度/弹性模量/干密度Key words
cement loess/st rength/elastic modulus/dry density分类
建筑与水利引用本文复制引用
万清琦,崔自治,杨宁宁,刘生雨..压实水泥湿陷性黄土的力学特性[J].南水北调与水利科技,2016,(1):119-123,130,6.基金项目
长江学者和创新团队发展计划( IRT 1067)Fund：Changjiang Scholars and Innovative Resear ch Team in University( IRT1067) （ IRT 1067）
