Through orthogonal laboratory testing of compressive strength for Wenzhou clay cement-soil and Wenzhou muck cement-soil, the special strength regularity of cement-soil is studied, and some new knowledge of cement-soil is obtained.

This paper introduces the acid-resisting erodibility and the feasibility of using clay-cement grout as a material of curtain grouting by means of labortory and in-situ grouting experiments.

The density,rheological property and stability of the clay cement grout are studied in order to replace the cement grout with clay cement grout,to promote the application of clay cement grout and to control the parameters of the grout to achieve an ideal water control in different conditions.

The mechanism of underground solidification and induration of cement clay grout is emphatically discussed and tested and vertified in engineering.

The study of clay-cement pastes has revealed that the paste is a pseudo-plastic fluid which has yield value, and that its rheology curve is a curve which does not pass the original point and is concave to the axis of shear strain rate.

In order to meet the needs of the computation with the finite element method,by using the red clay taken from the construction site and making samples of the mixed cement-red clay indoors,the triaxial experiment of the mixed cement-red clay was carried out to get the parameters of Duncan-Chang(E-B) model.