水玻璃-超细矿渣粉-水泥注浆材料主要性能研究

Study on Main Performances of Sodium Silicate Super Fine SlagPowder Cement Grout Material

为减少传统注浆材料水泥用量和提高矿渣回收利用率,以超细矿渣粉、水玻璃和水泥为主要材料,配制出一种新型复合注浆材料。采用正交试验法,以水胶比、超细矿渣粉掺量和水玻璃添加比例为因素水平,通过分析复合注浆材料的流动性、析水率及固结体抗压强度,得出最优浆液配比。试验结果表明:不添加水玻璃时,不同水胶比的浆液流动度均在超细矿渣粉掺量为10时,达到最佳。随着超细矿渣粉掺量和水玻璃添加比例的增加,不同水胶比的浆液析水率呈现明显下降趋势。水玻璃添加比例为1%时,不同超细矿渣粉掺量的固结体抗压强度增长率达到最大。

In order to reduce the cement consumption of the conventional grout material and to improve the utilization rate of the slag recovery,with the super fine slag powder,sodium silicate and cement as the main material,a new composite grouting material was prepared and developed.With the application of the orthogonal test method,taking the water cement ratio,super fine slag powder mixing amount and sodium silicate addition ratio as the factor level,with the analysis on the fluidity,sweating rate and solid compressive strength of the composite grouting material,the optimum grout mixing ratio was obtained.The test results showed that when no sodium silicate was added,the fluidity of the grout with different water cement ratio would be optimum when the content of super fine slag power was 10%.With the super fine slag powder addition amount and the sodium silicate mixing ratio increased,the sweating rate of the grout with different water cement ratio would be obvious in a decreased tendency.When the sodium silicate addition ratio was 1%,the compressive strength of the solid with different super fine powder mixing amount could be increased to the maximum.