抄録
Standard compaction tests have been performed for sandy soil which is mixed with two kinds of cement. Mixed materials are the normal Portland cement and the blast-furnace slag cement, the amount of which is 6% weight of sand for both cases.
During the compaction and the curing of such cement-treated sandy soil mixtures, about 1 or 2% of water is consumed for the cement hydration. This is a characteristic phenomenon in soil stabilization by cement.
During the undrained triaxial compression tests, the behaviours of the pore water pressure in the specimens have been measured to obtain the shear strength parameters in terms of the effective stress. The general pattern of the pore pressure-strain curves indicates that the pore pressure rises up to the peak value as the shear strain increases and that when the failure occurs it turns to decrease gradually to the negative value. The values of shear strength parameters obtained in a series of these tests are φ'=30°∼50°and c'=3∼13kg/cm2.
