文献类型：期刊文献

中文题名：纳米氧化镁改性水泥土一维固结压缩试验研究

英文题名：One-dimensional consolidation compression tests on nanometer magnesia reinforced cement soil with different curing ages

作者：王伟[1,2];张帅[2];张芳[1,2];李娜[1,2];宋新江[3];卢廷浩[2];

机构：[1]绍兴文理学院土木工程学院;[2]河海大学岩土力学与堤坝工程教育部重点实验室;[3]安徽省水利部淮委水利科学研究院;

年份：2015

卷号：0

期号：S1

起止页码：84

中文期刊名：水利学报

外文期刊名：Journal of Hydraulic Engineering

收录：北大核心2014、EI(收录号：20153901305259)、CSCD2015_2016、Scopus(收录号：2-s2.0-84941963429)、北大核心、CSCD

基金：国家自然科学基金项目(41202222);河海大学岩土力学与堤坝工程教育部重点实验室开放基金项目(GH201102);浙江省本科院校中青年学科带头人学术攀登项目(pd2013387);安徽省自然科学基金项目(1408085ME99)

语种：中文

中文关键词：软土;纳米Mg;O;固结压缩;龄期

外文关键词：soft soil;;nanometer magnesia;;consolidation compression;;curing age

中文摘要：为研究纳米Mg O外加剂对水泥土的改性效果,进行了不同掺入比的纳米Mg O改性水泥土(Nm CS)的室内一维固结压缩试验。试验设计了3个养护龄期和4个纳米氧化镁掺入比,考虑了非饱和与饱和两种状态。实验结果表明:(1)同一龄期下,Nm CS的压缩量基本随纳米Mg O掺入量的增加而减小,1.25%掺量较0.00%掺量的最大减小量为42.6%;(2)同一纳米Mg O掺入量下,Nm CS的压缩量基本随龄期的增长而减小,90 d龄期较28龄期最大的减小量为48.1%;(3)中前期及纳米材料配比适当的后期,Nm CS在饱和状态下的压缩量较非饱和状态下的更小,最大减小量为31.5%。

外文摘要：In order to study the reinforced effects of nanometer magnesia on cement soil,one-dimensionalconsolidation compression laboratory tests on nanometer magnesia reinforced cement soil(Nm CS) with differ-ent mixing ratios was conducted. Three curing ages and four nanometer magnesia mixing ratio were de-signed,and both unsaturated state and saturated state were considered. The results showed that:(1) Withthe same curing age,the compression amount of Nm CS will decrease with the increasing Nano-Mg O mix-ing ratio,the maximum reduction is 42.6 % with 1.25 % mixing ratio compared with 0.00 % mixing ratio;(2) With the same Nano- Mg O mixing ratio, the compression amount of Nm CS will decrease with thegrowth of curing age,the maximum reduction is 48.1 % at 90 d curing age compared with at 28 d curingage;(3) In the early-middle age,or later age with appropriate Nano-Mg O mixing ratio,the compressionamount of Nm CS at saturated state is less than at unsaturated state and the maximum reduction is 31.5 %.