热分析法研究聚羧酸对水泥水化的影响
首发时间:2009-06-30
摘要:本文采用差示扫描量热分析法和热重分析法,定性并半定量的分析了水泥水化十五分钟和三天的水化产物钙矾石及氢氧化钙的含量,研究了聚羧酸减水剂对水泥水化反应的影响,发现聚羧酸减水剂对水泥水化有一定的促进作用,但效果却表现为缓凝作用,其缓凝机理较为特殊。
关键词: 水泥水化 聚羧酸减水剂 差示扫描量热分析 热重分析
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Carboxylate admixtures’ effects on cement hydration studied by thermal analysis
Abstract:This paper qualitative and semi-quantitative analyzed hydration product ettringite and calcium hydroxide content after 15minutes and 3days Using the differential scanning calorimetry analytic method and the thermogravimetry analytic method,and studied the effects of carboxylate admixtures on cement hydration.The result indicates that the carboxylate admixtures promote the degree of cement hydration,but the effect actually is slow setting performance. The slow setting mechanism is special.
Keywords: cement hydration carboxylate admixtures DSC analysis TG analysis
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No.3351648302112463****
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