CONCRETE EROSIVE WEAR AND CAVITATION EROSION MECHANISM AND PROTECT METHOD
Erosive wear and cavitation erosion is one of the most ordinary disease, which influence the operational safety of the water conservancy hydroelectric equipment. In order to length the service life of the large water conservancy hydroelectricity project and ensure it operate safely, the higher durability of hydraulic concrete material is required. Especially, under the condition of high-velocity flow have stronger resistant ability of erosive wear and cavitation erosion. The paper discusses the concrete erosive wear and cavitation erosion mechanism. On the basis of the discussion, considering from different aspects, it introduces the concrete protective methods. Including adding silica powder and high-efficiency water reduce, adding latex and carbon fibers, adopting concrete with suitable strength, adding steel-fiber to improve the concrete durability, replacing the Poland cements with calcium aluminate cements and improving the abrasion resistance of the concrete lime substratum by replacing fine aggregate with Class F ash.
Wang qian Zhang zhe
Dalian university of technology, DaLian 116023, China
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）