摘要
分别采用单因素实验和正交实验,分析了水泥、减水剂、膨胀剂和纳米二氧化硅用量等对高强水泥基套筒灌浆料的流动度、强度和膨胀率的影响规律。研究表明:减水剂和水泥用量是影响高强水泥基套筒灌浆料流动度和强度的主要因素,当水泥用量1000 g、减水剂用量0.35%、纳米二氧化硅掺量0.4%、膨胀剂用量1.0%时,灌浆料的各项性能满足《钢筋连接用套筒灌浆料》的技术要求。
The influence of cement,water reducer,expansive agent and nano-silica on fluidity,strength and expansion rate of high-strength cementitious grout was analyzed by single factor experiment and orthogonal experiment.Research shows that the amount of water reducer powder and cement are the main factor affecting the fluidity and compressive and flexural strength of high-strength cementitious grout.When the amount of cement is 1000 g,the water reducer is 0.35%,the nano-silica is 0.4%,and the expansion agent is 1.0%,The performance of the cementitious grout meets the technical requirements of“Cementitious grout for coupler of rebar splicing”.
作者
贾陆军
蒋勇
李英丁
唐凯靖
JIA Lu-jun;JIANG Yong;LI Ying-ding;TANG Kai-jing(Department of Materials Engineering,Mianyang Polytechnic,Mianyang 621000,China;Mianyang Technical Centre,Guangdong Longhu Science and Technology Co,Ltd,Mianyang 621000,China)
出处
《建材世界》
2021年第5期23-26,共4页
The World of Building Materials
基金
四川省教育厅科研项目(18ZB0310)
绵阳职业技术学院企业横向科研项目(MZYH2018-03).
关键词
高强水泥基套筒灌浆料
流动度
抗压抗折强度
膨胀率
high-strength cementitious grout
fluidity
compressive and flexural strength
expansion rate
