Properties of remolded cement treated dredged soil is different from its original dredged soil. In practice, at joint section between previous and current placements, excavated soils from the previous section is used as a material for the current section. In addition, to respond a change of land use on a ground consisted of cement treated soil, it is important to study if the excavated soil from the cement treated soil can be used as a material. The objective of this study is to investigate physical and mechanical properties of recycled treated soil in association with cement proportion. For dredged clay, cement was added and cured as a mixture, then the cured material was remolded, then cement was added and cured again as a mixture, and then the cured material was remolded. Liquid limit and plastic limit tests were conducted after each remolding stage and unconfined compression tests were conducted after each curing stage. It was found out that liquid limit and plastic limit increase, but plastic limit decreases, with cement addition, and that shear strength is governed as a function of water-cement ratio, which is defined with cement mass corresponding to new addition for the stage of recycling.