Hydration of cement — role of triethanolamine
Hydration of cement — role of triethanolamine
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DOI：
10.1016/0008-8846(76)90026-0
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发表时间：
1976-09
影响因子：
11.4
通讯作者：
V. S. Ramachandran
中科院分区：
文献类型：
--
作者：
V. S. Ramachandran
在加入0.1%、0.25%、0.35%、0.5%和1.0%三乙醇胺后，研究了（a）铝酸三钙、（B）铝酸三钙+石膏、（c）硅酸三钙、（d）硅酸二钙和（e）波特兰水泥的水化和硬化特性。三乙醇胺（TEA）促进了3CaO·Al 2 O3和3CaO·Al 2 O3-CaSO 4·2 H2O体系的水化，延长了3CaO·SiO2水化的诱导期。在波特兰水泥浆TEA降低强度在所有年龄和设置特性急剧改变，特别是在较高的TEA含量。还获得了TEA与水合硅酸盐相形成复合物的证据。
Following addition of 0.1, 0.25, 0.35, 0.5 and 1.0 per cent triethanolamine, studies have been made of the hydration and hardening characteristics of (a) tricalcium aluminate, (b) tricalcium aluminate + gypsum, (c) tricalcium silicate, (d) dicalcium silicate, and (e) portland cement. Triethanolamine (TEA) accelerated the hydration of 3CaO.Al2O3and 3CaO.Al2O3-CaSO4.2H2O systems and extended the induction period of the hydration of 3CaO.SiO2. In portland cement paste TEA decreased the strength at all ages and setting characteristics were drastically altered, especially at higher TEA contents. Evidence was obtained also of the formation of a complex of TEA with the hydrating silicate phase.