Dredged sediment from Lianyungang port was selected as an example,and its basic performances and chemical composition were tested. Experiments were carried out to test the expansion and compound sludge of sintered ceramic,and the basic properties and soluble salt content of the ceramic were tested. The results show that: the main chemical compositions of Lianyungang dredged sediment are SiO_2,Al_2O_3 and Fe_2O_3,and its physical compositions are tiny particles with high liquid limit,plastic limit and plasti...