In order to investigate the sedimentation acceleration of serous fluid of dredger fill under the action of the additive and to find a method which can quickly change the serous fluid of dredger fill to foundation with bearing capacity

settlement test was conducted in the acryl glass vessel to simulate the subsidence and consolidation of serous fluid of dredger fill which was mixed respectively with cement

calcined lime and the mixture of cement and lime. Moreover

the mechanism was analyzed from granulometric composition

mineralogical analysis and microstructure. The basis for quick strengthening of the dredger fill was provided. By the comparison of the test result before and after the treating

it was found that the additive had the ability to accelerate consolidation and strengthen serous fluid of dredger fill.