Abstract :
The article aims to present an experimental dynamic behavior of grouted sand. Two different base gradations of between the Nos. 4 and 40 sieve sizes (4/40) and between the Nos. 40 and 100 sieve sizes (40/100) were mixed with different ratios. Three different ratios of sodium silicate-cement grout (0%, 7%, 14%), by volume, were permeated to mixed sample. The specimens were allowed to cure after 3 and 14 days. The cyclic triaxial test found that the grouted-sand significantly enhanced the liquefaction resistance. Also, the cyclic stress ratio-grout content relation can be analytically expressed in an exponential function with a highly reliable (R20.96). Resonant column test showed that shear modulus non-linearly decreased as shear strain increased, and increased with increasing the grout content and confining pressure.
Keyword :
Sodium silicate, Cement, Liquefaction resistance, Shear modulus, Damping ratio