摘要
应用A型复合掺合料(磨细钢渣粉:粉煤灰:硅灰=3:5:2)、B型复合掺合料(磨细钢渣粉:矿渣微粉:粉煤灰=1:2:1)配制复合型掺合料的高性能混凝土,通过电通量试验分析混凝土的抗氯离子渗透性能。结果表明,随着矿物掺合料掺量的增加,混凝土的抗氯离子渗透性能也随之明显提高;复掺A型掺合料混凝土的56d电通量均低于1000C,且当掺量小于30%时,其抗氯离子渗透性能显著优于复掺B型掺合料的混凝土;当掺量大于30%时,复掺B型掺合料混凝土的电通量降低速率高于复掺A型掺合料的混凝土。
A study on the anti-chloride ion penetration performance of high-performance concrete is made through the electric flux test, and the high-performance concrete is made with A compound admixtures （steel slag： fly ash： silica fume=3：5：2） and B compound admixtures （steel slag： ground granulated blast furnace slag： fly ash=1：2：1）. The results show that the anti-chloride ion penetration performance can be obviously improved with the increase of compound admixture amount; the anti-chloride ion penetration performance of concrete with A compound admixture is significantly better than the concrete with B compound admixture when the admixture amount is less than 30%, and the electric flux of concrete with A compound admixture is below 1000C when the concrete has been cured 56 days; the electric flux decreasing speed of concrete with B compound admixture is higher than the concrete with A compound admixture when the admixture amount is more than 30%.
出处
《混凝土与水泥制品》
北大核心
2013年第8期9-12,共4页
China Concrete and Cement Products
关键词
高性能混凝土
抗氯离子渗透性
电通量
High performance concrete
Anti-chloride ion penetration performance
Electric flUX
