一种无碱液体速凝剂的开发研究  

Study on a liquid setting-accelerator free-from alkali

作　　者：丁向群[1] 赵苏[1] 王毅[2] 梁云利 

机构地区：[1]沈阳建筑大学材料学院,辽宁沈阳110168 [2]沈阳金海派科技有限公司,辽宁沈阳110015 [3]北京海强宏利混凝土有限公司,北京101300

出　　处：《混凝土》2005年第4期77-78,共2页Concrete

摘　　要：介绍了一种无碱液态水泥混凝土速凝剂的生产工艺及其性能等技术特点,指出了影响速凝剂作用效果的主要因素,试验表明:使用本速凝剂水泥初凝时间不大于5分钟,终凝时间不大于10分钟;本速凝剂能够明显改善水泥的早期强度,1天强度大于8MPa,28天强度损失小甚至有所提高,抗压强度比大于80%。Introduced the production technique of a liquid setting-accelerator free-from alkali, and technology characteristics, pointed out the key factors which influence the setting-accelerator. Test indicated that, because of using the setting-accelerator, the time of cement earlier coagulation was no more than 5 minutes and the time of cement finial coagulation was no more than 10 minutes; the early intensity of cement was improved evidently and the intensity of 28 days was lost a little, so much as was improved, the ratio of press-resistance is no less than 80% .

关 键 词：液体速凝剂 开发研究 碱 水泥混凝土 抗压强度比 生产工艺 作用效果 初凝时间 早期强度 强度损失 

分 类 号：TQ172.46[化学工程—水泥工业] TE357.46[化学工程—硅酸盐工业]