混凝土强度的发展是水泥的凝固、硬化形成的,而水泥的硬化是水泥成分化学反应的结果。水泥的水化作用和新生成物的形成也遵循一般的化学反应规律,即温度增高会加速反应过程。于是,混凝土强度与温度、时间之间的关系,以及其中的规律,早在三十年代和四十年代间已开始 The development of concrete strength is formed by the solidification and hardening of cement, and the hardening of cement is the result of the chemical reaction of cement components. The hydration of cement and the formation of new products also follow the general laws of chemical reactions, that is, an increase in temperature will accelerate the reaction process. Thus, the relationship between concrete strength and temperature and time, and the laws therein, began as early as in the thirties and forties.