摘要
为了发现粘土—水泥浆的一些本质现象与规律,通过室内实验,描述了粘土—水泥浆的水固比、析水率、粘度以及凝结时间的一般规律,并对其影响因素进行了简单的分析。本次实验研究所涉及的粘土—水泥浆比重有13个,固体料配比有7个。结果表明:当固体料中水泥含量为35%时,配制同一比重浆液的用水量最少,同时,与之对应的浆液粘度最大;浆液的析水率与水泥含量大致呈线性关系;影响浆液凝结时间的主要因素不是浆液比重,也不是固体料配比,而是外界温度。通过在恒源煤矿六煤层底板注浆改造中的应用,取得了显著的效果。
In order to find out some essential phenomenon and regularity of clay-eement grout, through indoor experiment, the general regulation of water-solid ratio, bleeding ratio, viscosity and setting time is described and its influencing factors are analyzed primarily. In this study, there are 13 nos. of clay-cement grout gravity tests and 7 nos. of solid material proportion tests involved. The experimental study shows that the least amount of water is used when the cement content of solid material is 35% , and the viseosity is maximum; the bleeding ratio is approximately linear relationship with cement content; the main faetor affecting the grout setting time is not proportion and solid material ratio, but the outside temperature. The significant results are achieved in the coal seam floor grout reconstruction project in Hengyuan Coal Mine.
出处
《工程勘察》
2014年第3期5-10,共6页
Geotechnical Investigation & Surveying
基金
国家自然科学基金(41272278)
关键词
水固比
析水率
粘度
凝结时间
粘土-水泥浆
煤层底板
注浆改造
water-solid ratio
bleeding ratio
viseosity
setting time
clay-cement grout
coal seam floor
reconstruction by grouting
