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.

通过对几种缓凝同品牌水泥净浆凝结间试验和赤砂糖缓凝温条件下的水泥净浆凝结间试验发现赤砂糖缓凝是较理想的缓凝。