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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 phenomena and laws of clay-cement slurry, the general rule of water-solid ratio, water-cut rate, viscosity and setting time of clay-grout was described through laboratory experiments. The influencing factors were simply analyzed . The experimental study involved clay - cement proportion of 13, solid material ratio of 7. The results show that when the content of solid in the cement is 35%, the amount of water used to prepare the same proportion of slurry is the least, and the corresponding viscosity of the slurry is the highest. The water content of the slurry is approximately linear with the content of cement, The main factor is not the proportion of slurry, nor is the solid material ratio, but the outside temperature. Through the application of the sixth coal seam floor grouting reformation in Hengyuan Coal Mine, the remarkable effect has been achieved.