缓凝剂

Super-retarding mortar is composed of cement, water, retarding admix and sand blended in appropriate rate .

超缓砂浆是由泥、复合缓、和砂经适当配比而形成的。

The muscovado retarder is more retarder through the setting time experiments of several retarder applied the different brand cement and muscovado applied under the hot conditions.

通过对几种缓与不同品牌泥净浆结时间试和赤砂糖缓在高温条件下的泥净浆结时间试赤砂糖缓是较理想的缓。