dispersive action meaning in English

分散作用

In addition , impact of superplasticizers to hydration procee were discussed thoroughly . results showed that superplasticizers improved cement hydration process . initial hydration of cement was accelerated by superplasticizers because of their high range water reducing and dispersive action . after that , hydration rate was descended as a result of more initial hydrates and absorption of superplasticizers
高效减水剂由于其高度减水分散作用,水泥初始水化速度加快,但其后由于减水剂分子的吸附及初期水化产物膜的增厚,水化速度降低,从而有利于浆体结构的密实与后期性能的发展。