一、引言在混凝土的硬化过程中将产生大量的水化热,而水化热又会引起大体积混凝土结构(如大坝),温度的大幅度上升,所以当混凝土冷却时,会产生较大的拉应力和裂缝。显然,混凝土坝的裂缝是应该避免的。因为它 I. INTRODUCTION A lot of hydration heat will be generated during the hardening process of concrete, and hydration heat will cause large-volume concrete structures (such as dams) with a large temperature rise. Therefore, when concrete is cooled, it will produce larger Tensile stress and cracks. Clearly, cracks in concrete dams should be avoided. Because of it