QUANTIFICATION OF HEAT EVOLUTION DURING HYDRATION PROCESS OF CEMENT IN CONCRETE
QUANTIFICATION OF HEAT EVOLUTION DURING HYDRATION PROCESS OF CEMENT IN CONCRETE
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混凝土中水泥水化过程中放热的量化
DOI：
10.2208/jscej.1990.414_155
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
H. Okamura
中科院分区：
文献类型：
--
作者：
Yasunori Suzuki;Y. Tsuji;K. Maekawa;H. Okamura
本文提出了一种混凝土中水泥水化热随温度变化的定量化方法，并提供了一种普遍适用于任何温度滞后的水化热演化模型的推导方法。研究表明，利用不同初始温度混凝土的绝热温升曲线，即使在不使用导电式微量热计的情况下，也可以给出混凝土中水泥水化热更一般的模型。定量研究表明，由于水泥颗粒分散性能的不同，水泥在浆体和混凝土中的早期水化反应速率有很大差异。
This study wass made to present a technique for quantification of the heat of hydration evoluation process dependent on the temperature of cement in concrete and provides a general approach for deriving a heat of hydration evolution model capable of conforming with any temperature hysteresis.The authors show that by using adiabatic temperature rise curves of concretes with different initial temperatures, a more generalized heat of hydration model could be given for cement in concrete even when a conduction type microcalori-meter is not used. For cements in paste and concrete, it is shown quantitatively that the rate of hydration reaction differs greatly at early age because of the difference in dispersion properties of cement particles.