ABSTRACT
The shear strength of the acid polluted laterite was studied by direct shear test in laboratory under the condition that the laterite was socked in tap water. In the test, the factors, as the variate, included acid concentration, soaking time, ambient temperature, water content and dry density. The results showed that with the increase of acid concentration, the shear strength decreases gradually; the longer soaking time leads to decreased shear strength; with the increase of ambient temperature, the shear strength increases first and then decreases; the shear strength decreases with the increase of water content; the higher dry density causes increasing shear strength.
