水工新材料研究综述

A Review of Recent Studies on Hydraulic Construction Materials

混凝土是目前人类使用量最大的建筑材料,在水工建筑物中混凝土坝和混凝土面板坝也是主要的建筑形式。目前我国许多混凝土坝和混凝土面板坝的服役时间已经超过30年,温控防裂问题和混凝土耐久性问题越来越成为水工建筑材料的研究重点。随着材料科学的发展,人们对水泥基材料也有了新的认识,通过对材料的微观结构进行调整,从底层对水泥基材料进行改性,研究具有超高性能、抗腐蚀和高耐久性的水工新材料成为了新的热点。

Concrete is currently the most widely used construction material. In hydraulic structures, concrete dam and concrete face dam are also the major forms. Presently, many concrete dams and concrete face dams in China have been in service for more than 30 years. The temperature induced crack problem and the durability issue are becoming the research focuses of hydraulic construction materials. With the development of material science, new findings are continuously achieved on cement-based materials. It is found that the performance of cement-based materials can be improved greatly by adjusting the microstructure of the materials. Thus, the development of new hydraulic construction materials with super-high performance, corrosion resistance and durability has become the new hotspots.