摘   要：以工业固体废弃物电镀污泥和钢渣为原料，制备了一种辅助性胶凝材料。研究了不同配比的辅助性胶凝材料及辅助性胶凝材料掺量对水泥力学性能的影响，测定了重金属溶出率，并利用XRD、SEM研究了辅助性胶凝材料对水泥水化产物和微观形貌的影响。结果表明，适当比例的辅助性胶凝材料可以改善水泥强度，当电镀污泥∶钢渣=8∶2时，制备的辅助性胶凝材料在掺量为15%的情况下，其7 d、28 d强度比纯水泥熟料分别高5.9 MPa和1.4 MPa。此外，水泥浆体可以有效固化电镀污泥中的重金属，实现对电镀污泥的无害化处理。

Abstract: The preparation, microstructure and mechanical performance of auxiliary cementitious material prepared with electroplating sludge and steel slag as raw materials are studied. The effect of content and material ratio of auxiliary cementitious material on compressive strength of cement is studied. The microstructure and hydration products of cement with auxiliary cementitious material are characterized by XRD and SEM. In addition, the heavy metals elements in the electroplating sludge are also examined. The results show that the electroplating sludge could be mixed with steel slag at appropriate ratios to make auxiliary cementitious material that posses certain compressive strength. The auxiliary cementitious material could increase the compressive strength of cement when substitute for cement in appropriate proportion. Compared with portland cement, the compressive strength of specimen with 15% S2 at 7 d increases 5.9 MPa, meanwhile, 28 d increases 1.4 MPa. The heavy metals elements in the electroplating sludge can be effective cured in cement pastes and reduce the pollution to the environment.