The effects of stress history and relative density on the short-term strength and stiffness of a granular soil (Ottawa 20-30 sand) that was chemically stabilized with a sodium silicate grout were investigated. A system was developed to inject grout into sand specimens that were prepared in a triaxial cell; the specimens were subjected to a confining stress of 360 kPa and grouted under a pressure of 144 kPa. The results are analyzed in terms of Mohr-Coulomb failure theory, and comparisons are made among the compressive strength, initial tangent modulus, angle of internal friction, and cohesion of the specimens for different test conditions.
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology