摘  要：研究了混凝土的初始入模温度、流动度和掺加粉煤灰等因素对混凝土绝热温升值和温升速率的影响，同时还研究了所用胶凝材料的水化动力学。研究结果表明，提高混凝土初始入模温度将加速胶凝材料的水化，并缩短水化反应持续时间。这对低强度等级混凝土所用胶凝材料的水化程度影响不大，因而对其绝热温升值影响不显著；但却会明显降低高强度等级混凝土所用胶凝材料的水化程度，使其绝热温升值下降。掺加粉煤灰或改变混凝土的工作性也会影响混凝土的绝热温升值和温升速率。

Abstract: The influences of initial casting temperature and fluidity of concrete, and whether adding of fly ash, on the adiabatic temperature rise and its rising rate of concrete were studied. And the hydration kinetics of binders was discussed based on the results of tests. The rezults show that with increasing the initial casting temperature of concrete, the hydration of binder is accelerated and the duration of hydration is shortened, which will show little effect on the hydration degree of binder for low strength grades of concrete, so that there is almost not effect on adiabatic temperature rise. However, the hydration degree of binder, as well as the adiabatic temperature rise for high strength concrete, will be obviously decreased due to the increase of initial casting temperature. Besides, the adiabatic temperature rise and the temperature rising rate of concrete will be influenced when adding fly ash or modifying the worability of concrete.