复合掺合料大流动性混凝土抗碳化性能  

Carbonation resistance of high-flowing concrete with compound admixtures

作　　者：孟志良[1,2] 王彬[1] 张玉辉 孟晨璇 王博航 周炯[1] 

机构地区：[1]河北农业大学城乡建设学院,河北保定070001 [2]重庆大学材料科学与工程学院,重庆400045 [3]河北省冀咨工程监理有限责任公司,河北石家庄050051

出　　处：《河北农业大学学报》2014年第5期124-129,共6页Journal of Hebei Agricultural University

摘　　要：采用快速碳化试验,研究了复合掺合料大流动性混凝土抗碳化性能。结果表明:(1)当复合掺合料掺量相同时,大流动性混凝土碳化深度随着水胶比增加在增加,其增加幅度在不同水胶比范围内有明显差异;当水胶比相同时,大流动性混凝土碳化深度随着龄期和复合掺合料掺量的增加在增加。(2)复合掺合料大流动性混凝土龄期与加速碳化深度的关系可用幂函数表示;在一定复合掺合料掺量和水胶比条件下,复合掺合料大流动性混凝土28d抗压强度与其28d碳化深度具有良好线性关系。The accelerated carbonation test was carried out to research the carbonation resistance of high-flowing concrete with compound admixtures.The results show that：（1）At the same dosage of compound admixtures,the carbonation depth of high-flowing concrete increases with the increasing of water-binder ratio,the increasing amplitudes are significant differences in different water-binder ratios scales;at the same water-binder ratio,the carbonized depth of high-flowing concrete increases with the increasing of the age and the dosage of compound admixtures.（2）The relationship between the age of the high-flowing concrete with compound admixtures and the accelerated carbonized depth can be expressed by apower function;under a certain condition of the dosage of compound admixtures and water-binder ratio,the compressive strength of 28 days of the high-flowing concrete with compound admixtures has a good linear relationship with its carbonized depth of 28 days.

关 键 词：磨细固硫渣 复合掺合料 大流动性混凝土 碳化 水胶比 

分 类 号：TU528[建筑科学—建筑技术科学]