碾压混凝土主坝工程外加剂的试验研究

Test and study of admixture for RCC main dam

通过天然骨料与辉绿岩人工骨料对多种缓凝高效减水剂进行对比试验 ,选出了目前国内生产的优质缓凝高效减水剂 ,并对碾压混凝土进行了不同外加剂掺量的凝结时间。

By comparison test of many kinds of retarding high-rate water-reducing admixture for natural aggregate and artificial diabase aggregate, the high-quality retarding high-rate water-reducing admixture of domestic product is selected. The set time and mechanical property of RCC mixed with different percentage of admixture are also tested and studied.