摘要
利用多孔硅质岩为载体 ,复合减水剂和缓凝剂 ,初步研制出能在 90min保持混凝土坍落度基本不变的载体流化剂 .通过测试水泥凝结时间、强度和流动度 ,筛选了羟基羧酸类缓凝剂 .
Using porous silicon rock powder for supporting medium and compounding water reducer with retarder, a kind of supporting medium superplasticizer is initially manufactured to control the slump and make it remain unchanged in 90 minutes. The effect of hydroxycarboxylic acids' retarders on setting time, strength and flowing degree of cement paste has been studied in order to collect efficient retarders.
出处
《武汉城市建设学院学报》
2000年第3期18-22,共5页
Journal of Wuhan Urban Construction Institute
关键词
载体流化剂
坍落度损失
缓凝剂
混凝土
supporting medium superplasticizer
loss of slump
retarder
