在大体积混凝土或炎热的季节，尤其是在我国南方地区，气温高，混凝土凝结快，会带来一系列的问题，如：造成运输和振捣受到影响，水泥水化热集中，散发不畅，造成混凝土温升过高，易出现裂缝等。因此常常使用混凝土缓凝剂解决此类问题。糖钙是一种缓凝减水剂，它原材料来源广 In mass concrete or in hot seasons, especially in southern China, high temperatures and rapid concrete set-up can cause a series of problems, such as: causing transport and vibrations to be affected, concentrating the heat of cement hydration, and dissemination. , Causes the concrete to rise too high, prone to cracks, etc. Therefore, concrete retarders are often used to solve such problems. Sugar calcium is a retarding water reducer, it has a wide source of raw materials