摘要
研究AMPS和HPMC在水泥中的相容性,分析了它们对于水泥胶砂流动度、流动度损失率,强度、收缩率的影响。结果发现AMPS和HPMC降低了1 h流动度经时损失,抑制了收缩,但降低了3 d强度;AMPS可提高流动度和28 d强度,而HPMC会降低流动度,但抑制收缩效果更明显。AMPS可单独使用,而HPMC宜与分散剂一起使用。
In order to evaluate the compatibility of AMPS and HPMC with cement, its effects on the fluidity, fluidity loss, strength and shrinkage of cement mortar were analyzed. The results showed that AMPS and HPMC reduce the 1h loss of fluidity, inhibit shrinkage, but decreases the 3d strength. AMPS can improve the fluidity and 28d strength, while HPMC reduces the fluidity, but the inhibiting effect on shrinkage is more obvious. In general, AMPS can be used alone, but HPMC is best used with dispersant.
出处
《建筑技术》
北大核心
2015年第9期820-822,共3页
Architecture Technology
基金
同济大学先进土木工程材料教育部重点试验室开放基金
河南省青年骨干教师资助计划(2012GGJS-176)
