摘要
采用HN增强剂和SF胶凝剂来激发超细矿渣微粉的活性,以不同水灰比(W/C)、HN增强剂掺量、SF胶凝剂掺量为主要因素进行正交试验,测出所配超细矿渣微粉浆液的粘度、凝结时间和抗压强度(7 d和14 d),再通过追加试验获得浆液的最优配比,并将该浆液进行注浆试验。结果表明:当水灰比(W/C)为1.2、HN增强剂掺量为4%和SF胶凝剂掺量为6%时,浆液粘度为47.03,抗压强度(7 d)为5.208 KPa,表明超细矿渣微粉浆液具有良好的浆液粘度和抗压强度,比普通水泥浆液更易注入到细小砂土层中。
HN enhancer and SF gelling agent were used to activate the activity of superfine slag powder.The orthogonal test was carried out with different water cement ratio,doping amount of HN enhancer and SF gelling agent as the main factors.The viscosity,setting time and compressive strength(7 d and 14 d)of Superfine slag powder slurry were measured.The optimal ratio of slurry is obtained by additional test,and the grouting test is carried out for the slurry.The results show that as the water cement ratio is 1.2,the content of HN enhancer is 4%and the content of SF gelling agent is 6%,the viscosity of the slurry is 47.03,and the compressive strength(7 d)is 5.208 kPa.It has good viscosity and compressive strength of slurry and is easy to be injected into fine sand layer.
作者
韩洪兴
HAN Hongxing(School of Civil Engineering and Architecture, XinXiang University, XinXiang 453003, China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2020年第7期7214-7217,共4页
Journal of Functional Materials
基金
新乡学院博士科研启动金资助项目(1366020159)
河南省重点研发与推广专项资助项目(192102310483)。
关键词
超细矿渣微粉
浆液
可注性
superfine slag powder
slurry
injectability
