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中文摘要：
为研究水化程度和水灰比对水泥水化放热模型的影响，对试验原材料性能进行了测试，同时分别进行了初始水化温度为25、35、45℃及水灰比为O．24、0．42、0．6等条件下的水泥水化绝热温升模型试验研究。通过试验测定水泥在不同温度、不同水灰比情况下的绝热温升，绘制水泥绝热温度变化曲线，依据已绘制出的水泥绝热温度变化曲线，确定相关参数，进而确定水泥的绝热温升计算模型，然后将几种不同计算模型算出的温度与实测温度进行比较，通过对比得出各个公式的准确性，并在对公式进行校核改进后考虑了水化程度对水化热模型的影响，最后利用综合考虑了龄期、温度、水化程度等因素的水化热公式预测得出了不同初始温度的水泥水化放热情况。试验结果表明：水泥水化绝热温升不但与水泥水化龄期、初始温度有关，还与水泥水化反应程度有很大的关系，考虑水化程度对水化放热影响的水泥绝热温升公式有更好的拟合精度。
英文摘要：
To study the effect of water-cement ratioandthe degree of hydrationof cementpasteto the computing model for adiabatic temperature rise of cement, properties of the raw material were tested, the experiments with initial hydration temperature of 25,35,45 ℃ and water-cement ratio of 0.24,0.42, and 0.6 were carried out respectively.Determine the eementpaste adiabatic temperature rise under the situ- ation of different initial hydration temperature and different water-cement ratio, draw the curve of adiabatic temperature of cement paste, determine relevant parameter according to the adiabatic temperature change curve, and to determine the adiabatic temperature rise calculation model of cement, then the temperature calculated by different calculation modelare compared with the temperature measured by experiment, comparing the accuracy of the different formula, after the formula have been improved takes into account the effect of degree of hydration to the hydration heat model, finally using the formula comprehensive considering the age, temperature, hydration degree and oth- er factors to predict the hydration heat under the different initial temperature of cement paste.The test results showed that cement paste hydration adiabatic temperature rise was not only related to the cement hydration age, the initial temperature, it also had a lot to do with the degree of cement paste hydration reaction, the formula which consider the effects of hydration degree of hydration heat of concrete adiabatic temperature rise has better precision.
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