Research on Water-Related Stability of Cement-Improved Completely Weathered Granite

Considering the water-weakening properties of completely weathered granite, a lot of tests were done to study its water stability, and the regularity between water-related stability coefficient, a notion which is introduced, and compactness, the content of cement the water content and cu ring time were discussed. Besides, the rule and mechanism of strength in the dry -wet cycles were researched by simulating the condition of underground water and rain waster. The result shows that the content of cement and curing time conform to hyperbolic curve, the compactness conforms to exponential curve, and the water content conforms to multinomial curve. As long as the strength of improved cement-soil arrived at some degree, the corresponding water-related stability goes unchanging as the microcrack growing under water-soil interaction. So it can provide the most economical way to improve the water stability for engineering by controlling the compactness, the content of cement, the water content and curing time.