Study on Physical and Mechanical Properties of Micro-Cement Grouting Materials with Different Water-Cement Ratio

Abstract The water-cement ratio is one of the key parameters grouting materials, which greatly affects working performance and mechanical properties materials. This paper studies physical properties, such as density, fluidity, consistency, bleeding rate, stone flexural compressive strength micro-cement materials with a 0.8:1, 1:1, 1.5:1 2.0:1 are investigated through variety indoor experiments. results show that gradual increase ratio, consistency value, strength, material gradually decrease, while fluidity rate slurry increases. Although 2:1 has good high low body result in more water injected into reinforced formation reinforcement strength. On contrary, 0.8:1 but fluidity. 1:1 relatively balanced. study provides basis for subsequent on-site ultra-fine cement project. A reasonable can be selected according to specific needs ensure quality safety operation.