In order to investigate the effect of firming agent and low dosage of lime on stability of soil five kinds of representative soil and three small dosages of slaked lime were selected to form fifteen mixture compositions with same dosage of firming agent.Test results show that firming agent and low dosage of slaked lime have a positive effect on stabilization of clay,but a little impact on silt,and the strengths of stabilized clay are different for different clays.There is a good linear correlation between t...