Study on Curing Agent of Chemical Modification on Dredged Soil

Large amount of dredged silt has been produced in the construction of water conservancy projects and oceanographic projects in China every year. Solidification and modification of dredging silt, to transfer it to good geotechnical materials, will be significant benefits on the sustainable development of the society. The curing effect of dredging soil isn't good if selecting cement as the single main curing agent. In this paper, the industrial steel slag and waste slag were chosen as the main curing agent and matching with cement and alkali activator, such as water glass, gypsum and sulfate. The help curing agent dosage range has been determined by single doped tests. Then the best ratio of GKCS curing agent has been determined through orthogonal tests. The research shows that the unconfined compressive strength can be achieved 5905kPa after using GKCS curing agent modified dredged soil.