针对水泥浆液黏度、析水率、结石体抗压强度等主要性能指标,选择P·O42.5、P·O52.5两种标号普通硅酸盐水泥,0.5∶1～1.2∶1六个水灰比等级和塑化剂、速凝剂两种外加剂进行全面组合试验,研究了水泥标号、水灰比和外加剂对水泥浆液基本性能的影响效果.试验表明,在水泥浆液中添加1％的塑化剂,能够显著降低浆液黏度,在保证良好可注性的前提下大幅降低水灰比,从而提高结石体强度.%In order to get the cement slurry performance parameters such as viscosity, bleeding rate, solidification body compressive strength, this paper selects two grade of ordinary portland cement—P · 042. 5%P · 052. 5,six water cement ratio —0. 5 — 1. 2 and two kinds of cement admixture—water reducer and setting accelerator to conduct a comprehensive combination test. And it studies the grade of cement, water cement ratio and cement admixture on cement slurry performance improvements. The test results show that,the cement slurry containing 1% water reducer,can significantly reduce the viscosity,and in the premise of good groutability it substantially reduces the water cement ratio,thereby improving compressive strength of cement grout solidification body.
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