Abstract
The unconfined compression strength has been an important index for the design of air cement treated ground. In this paper, undrained shear behaviors of air cement treated soils were cleared out for the soil with different void ratios nd degree of saturation in a consolidation pressure range of actually assumed in a field. It was proved that the shear strength depended on the void ratio and the confining pressure affected the volumetric strain and excess pore pressure behaviors. The unconfined compression properties were useful indices to assume the strength for the soils with different void ratio. However, the values by the unconfined compression test were larger than that by the triaxial compression test, that needs some care in the design.
