Experimental Study on the Proportioning of Grouting Materials for Fractured Roadways

For broken, low overall strength roadways, anchor cable and anchor mesh support are generally adopted. Sometimes, grouted anchor cable support is both an economical and safe support method. Therefore, the design of grouting materials and ratios plays a stewardship role. Through the proportioning experiments of cement slurry and water glass, a suitable proportioning scheme and the determination of various parameters were identified. According to the analysis of the test results, a slurry mixture of ordinary silicate cement with a water-cement ratio of 0.8 and water glass with a volume ratio of 1:0.5 is more suitable for the site grouting conditions.