MICROSTRUCTURAL CHARACTERISTIC OF CEMENT CONSOLIDATED SOFT SOIL

Soft soil widely distributes in our country,and is often consolidated by cement in the progress of progress of foundation treatment.However, great difference exits in consolidation effect,and even some instahle projects occurs in some soft soil area with high organic content. Therefore the technique of scanning electronic microscope(SEM) is used to study the consolidation effect of cement. On the basis of soil microstructure .the granular metric.compo-nent of structure unit, pore feature and structural feature of cement treated soil with high organic content in same part of highway in JiangMen is quantitatively analyzed. The quantitative results of SEM picture show that as to the studied cement treated soil,the directing property of structure unit and pore is poor, more micro and small pores are developed in particles,and all the samples are isotropic.