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.

通过对几种凝剂与不同泥净浆凝结间试验和赤凝剂在高温条件下的泥净浆凝结间试验发现赤凝剂是较理想的凝剂。