硅酸盐通报2018，Vol.37Issue(2)：572-577,6.
大掺量矿物掺合料混凝土抗盐冻性能研究
Salt-Freezing Resistance of High-volume Mineral Admixture Concrete
摘要
Abstract
Two types of concrete were designed:ordinary concrete,high-volume mineral admixture concrete(HVMAC)mixed with fly ash and ground granulated blast furnace slag.Specimens were treated with the method of accelerated freezing-thawing in fresh water,5％ MgSO4 solution,10％ NaCl solution,5％ Na2SO4 +5％ MgCl2 solution respectively.Then mass loss,dynamic elastic modulus and compressive strength of these specimens were measured to study the freeze-thaw durability of two types concrete.Results show that all specimens damage more seriously in fresh water than those in salt solution,ordinary concrete specimens suffer less in MgSO4 solution due to they form a dense structure.In NaCl solution,HVMAC absorbs less solution,so it damages less,all specimens have almost no degradation in 5％ Na2SO4 + 5％MgCl2 solution.In general,the freeze-thaw durability of HVMAC is best.关键词
大掺量矿物掺合料/混凝土/盐冻Key words
high-volume mineral admixture/concrete/salt-freezing分类
建筑与水利引用本文复制引用
方鹏,李北星,方晴..大掺量矿物掺合料混凝土抗盐冻性能研究[J].硅酸盐通报,2018,37(2):572-577,6.基金项目
国家电网公司2016年度依托工程基建新技术研究项目-第40分项目 （）
