RATE OF HYDRATION OF ALITE AND BELITE IN PORTLAND CEMENT
RATE OF HYDRATION OF ALITE AND BELITE IN PORTLAND CEMENT
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阿利特和贝利特在波特兰水泥中的水化率
DOI：
10.3130/aijs.75.681
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Kazuo Yamada
中科院分区：
文献类型：
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作者：
I. Maruyama;T. Matsushita;T. Noguchi;Y. Hosokawa;Kazuo Yamada
采用粉末X射线衍射（XRD）/Rietveld分析方法研究了多种水泥浆体的水化过程。本研究的参数是水泥类型（普通波特兰水泥、低热波特兰水泥和生态水泥）、水灰比（0.50、0.35）和养护温度（283、293、313 K）。本文重点对阿利特与贝利特的反应进行了评价。实验结果表明，温度对阿利特的反应有影响，但W/C的影响较小。对于贝利特，其反应强烈地受阿利特的反应和温度的影响。提出了用毛细水中CaO和SiO_2的离子浓度及阿利特、贝利特、C-S-H和Ca（OH）_2的溶解平衡曲线来解释贝利特反应速率的假说。基于这些实验事实，提出了简单的水化模型。
Hydration process of many kinds of cement paste is investigated by Powder X-ray diffraction (XRD)/Rietveld analysis. The parameters of the present study are type of cement (ordinary Portland cement, low heat Portland cement, and Eco-cement), water to cement ratio (0.50, 0.35), and curing temperature (283, 293, 313K). In this contribution, reaction of alite and belite is focused and evaluated. Experimental results show that the reaction of alite is affected by the temperature, but the effect of W/C is rather small. Regarding belite, its reaction is strongly affected by the reaction of alite and temperature. The hypothesis, in which rate of reaction of belite is explained by the ion concentration of CaO and SiO2 in the capillary water and solution equilibrium curve of alite, belite, C-S-H and Ca(OH)2, is proposed. Based on these experimental facts, simple hydration model is proposed.