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Antifreeze in the application of dry-mixed mortar
Author(s): 
Pages: 42-44
Year: Issue:  11
Journal: Ready-mixed Concrete

Keyword:  干粉砂浆 抗冻剂 保水率 凝结时间;
Abstract: 本文主要研究在硝酸钙、碳酸钠以及两者复掺情况下,对干粉砂浆工作性能和力学性能的影响。试验结果表明,在硝酸钙和碳酸钠单掺时,随着掺量的增加,干粉砂浆保水率呈下降趋势,凝结时间缩短,干粉砂浆3d强度提高,28d强度呈下降趋势;两者复掺时,凝结时间最大可缩短到140min,3d和7d强度略有提高,28d强度呈下降趋势。
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