C60镁质高强混凝土配制与强度试验  

Preparation and strength test of C60 magnesia high strength concrete

作　　者：张瑞涛 高华国 李吉人 王楠 刘武通 李程前 ZHANG Ruitao;GAO Huaguo;LI Jiren;WANG Nan;LIU Wutong;LI Chengqian(School of Civil Engineering,University of Science and Technology Liaoning,Anshan 114051,China)

机构地区：[1]辽宁科技大学土木工程学院,辽宁鞍山114051

出　　处：《辽宁科技大学学报》2018年第6期475-480,共6页Journal of University of Science and Technology Liaoning

基　　金：辽宁省教育厅(2017LNQN12);辽宁省大学生创新创业训练项目(201710146000166)

摘　　要：用镁矿石代替石灰石为粗骨料,研究了不同高效减水剂掺和量、骨料、水胶比、砂率等对混凝土抗压强度的影响。通过多次试验调整得到一种镁质高强混凝土新型配合比。对镁质混凝土试块进行抗压强度测试,对受压试块单元体进行应力分析。结果表明,镁质混凝土试块与普通混凝土试块的破坏形式相同,且强度相差不大,均能达到C60高强混凝土强度等级要求。Effects of factors such as superplasticizer addition amount,aggregate type,water-binder ratio and sand ratio,etc.,on the compressive strength of concrete were studied by using magnesium ore replacing limestone as coarse aggregates.Through performing experiments,a new mix ratio for making magnesia high strength concrete was obtained by adjusting the mix ratio.Tests on the compressive strength of the magnesia concrete sample blocks were conducted,and analyses on their stress were carried out.The experimental results show that the damage form of the magnesia concrete is the same as that of the ordinary concrete exhibiting little difference in strength,which can meet the requirement for the strength grade of C60 high strength concrete.

关 键 词：镁矿石 C60高强混凝土 新型配合比 平面应力状态 

分 类 号：TU528[建筑科学—建筑技术科学]