Cement mix proportion for treated soils recycled from a cement treated soil

抄録

Properties of remolded cement treated dredged soil are different from those of its original source soil without cement treatment. In practice, at placing joint between previous and current placements, excavated soils from the previous section are used as a source material for the current section. The objective of this study is to investigate physical and mechanical properties of recycled cement treated soil in association with cement proportion, when the original cement treated soil is remolded and reused as a source soil. Unconfined compressive strengths for both the original cement treated soil and recycled cement treated soil are discussed in association with the water-cement ratio W/C in the mix proportion. The most important governing parameter to control the shear strength is the water-cement ratio calculated for newly added amount of cement.