中文摘要：

通过在水泥基灌浆料中掺加硅灰，研究硅灰掺量对该灌浆料早期性能的影响。试验结果表明，掺加一定量的硅灰可以提高灌浆料的流动度并改善灌浆料的表面状态，从而增加灌浆料的可灌性和密实性，并能够明显提高灌浆料的抗折强度和抗压强度，当硅灰掺量为2%时，和未掺加硅灰相比，灌浆料1 d和3 d抗折强度分别增加43%和22%，1 d和3 d抗压强度分别增加50%和73%。

英文摘要：

Through adding different dosage of silica fume,studied the early performance of cement-based grout.Experiment result showed that mixing certain amount of silica fume can improve the grout fluidity and improve the grout surface state ,thereby increasing grout＆#39;s groutability and compactness,and can also significantly improve the grout＆#39;s flexural strength and compressive strength.When silica fume was 2%,1 d and 3 d flexural strength increased by 43%and 22%,1 d and 3d compressive strength increased by 50%and 73%compared with grout without silica fume.