掺钢渣-矿渣-粉煤灰复合微粉混凝土高温后抗压强度数学分析  

Mathematical Analysis on the Compressive Strength of High Temperature Micro Powder Concrete Added with Stell Slag,Slag and Fly Ash

作　　者：陈新星[1] 韩明珍[1] 吴昊[1] 周志云[1] 

机构地区：[1]上海理工大学环境与建筑学院,上海200093

出　　处：《硅酸盐通报》2015年第8期2254-2259,共6页Bulletin of the Chinese Ceramic Society

摘　　要：对掺钢渣-矿渣-粉煤灰复合微粉混凝土高温后抗压强度进行了正交试验的极差分析和方差分析。分析结果表明:在试验各个温度下,钢渣的最优掺量为2.5%,矿渣的最优掺量为2.5%或15%。在常温时,粉煤灰的最优掺量为2.5%,在高温下,粉煤灰的最优掺量为5%。并且矿渣对混凝土高温后抗压强度的影响最为明显,粉煤灰对混凝土高温后抗压强度的影响较明显,而钢渣在400℃以下时,影响效果很小,在600℃时开始产生影响,在800℃时和矿渣的影响效果相当。Doped steel slag-slag-fly ash composite powder after high temperature compressive strength of concrete orthogonal test range analysis and analysis of variance. The results show that at each temperature, the optimum dosage of slag 2.5%, most slag of 2.5% and 15%. At normal temperature, the optimal volume fly ash 2.5%, at high temperatures, the optimal dosage is 5% ash. And the impact of slag on the compressive strength of concrete after high temperature most obvious influence of fly ash on the compressive strength of concrete after high temperature is obvious, and the slag in the following 400 ℃, the impact is very small effect, beginning to impact at 600 ℃, at 800 ℃ and slag affect the results considerably.

关 键 词：混凝土 钢渣 矿渣 粉煤灰 抗压强度 

分 类 号：TU528[建筑科学—建筑技术科学]