摘要
研究了四种引气剂的水溶液和饱和氢氧化钙溶液表面张力随引气剂质量浓度以及温度变化的规律,同时研究了温度对引气水泥砂浆流动度和含气量的影响。结果表明,引气剂溶液的表面张力随其质量浓度的降低而升高,随温度的升高而降低。碱溶液和温度均对性能不同的引气剂具有选择性。引气砂浆的流动度和含气量均随温度的升高而降低。通过溶液的表面张力来研究、评价引气剂是一种简单易行的方法,为实际工程选择引气剂的品种提供了理论依据和参考价值。
The effects of mass concentration of air-entraining agents and temperature on four kinds of airentraining agents distilled water solution and Ca（ OH）2saturated solution were studied in this paper. The influences of temperature on fluidity and air content of air entraining cement mortar were also studied.The results showed that surface tension of air-entraining agent solution increased while the mass concentration decreased,and decreased with the rising temperature. There is selectivity in different airentraining agents from alkaline solution and temperature. The fluidity and air content of air entraining cement mortar decreased with the rising temperature. It was convenient to study and evaluate airentraining agent by using surface tension of solution,provided theory reference for civil engineering.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2015年第2期331-334,共4页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金(51308264)
国家国际科技合作专项项目(2014DFR81000)
关键词
表面张力
引气剂
温度
流动度
含气量
surface tension
air-entraining agent
temperature
fluidity
air content
