一种新型无碱液体速凝剂的合成及性能研究  

Synthesis and performance study of a new liquid alkali-free set accelerator

作　　者：胡铁刚[1] 王虎群[1] 吴文选[1] 熊卫锋[1] 杨晓峰[1] 

机构地区：[1]北京东方雨虹防水技术股份有限公司,北京101309

出　　处：《新型建筑材料》2013年第2期41-43,共3页New Building Materials

摘　　要：介绍了一种新型无碱液体速凝剂的合成方法,并对其性能进行了测试,结果表明,优化后的无碱液体速凝剂在掺量为8%时,性能符合JC 477—2005《喷射混凝土用速凝剂》中一等品的要求,基准水泥初凝时间2 min30 s、终凝时间6 min10 s,1 d抗压强度达到12.1 MPa,28 d抗压强度比为98%,后期强度基本无损失,与不同水泥和减水剂的适应性好。A method was introduced to develop a new liquid alkali-free set accelerator, and the performance was detected. The results show that the optimized liquid alkali-free set accelerator completely meets the requirements for the first class products in the Flash Setting Admixtures of Sprayed Concrete （JC 477--2005）when the additive content is 8%. The initial setting time is 2 min 30 s,the final setting time is 6 min 10 s,1 d compressive strength reaches 12.1 MPa and 28 d compressive strength ratio is 98%, and there is no loss in later strength basically. The set accelerator have a good adaptability to kinds of cements and water reducing agent.

关 键 词：液体速凝剂 无碱 喷射混凝土 适应性 

分 类 号：TU528.042[建筑科学—建筑技术科学]