Besides preventing the hydration of cement, so leading to longer setting and har dening time of concrete, concrete retarter still has auxiliary plasticizing effe ct and auxiliary enhancing strength.

• 混凝土缓凝剂除了具有抑制水泥水化作用,延长混凝土凝结时间以外,还具有辅助塑化效应和辅助增强效应。