Research on Microstructure of Long Term Marine Immerged Concrete

摘要：

　　Corrosion is a major concern for the durability of concrete structures under marine environment.In this paper three series of concrete was immerged in sea water to reseaech its development of compressive strength,microstructure and corrsosion production.The results showed that compressive strength of controlled concrete was decreased but it can further increased added fly ash and silicon fume after immerged in sea water.It can be observation by SEM and EDS that a number of complex salt was produced on the surface and AFt was produced inside controlled concrete.It can produce expand and lead to cracks.As result of fly ash and silicon fume added,the crystals of Mg(OH)2 was formed on the surface and no crystal and cracks was produced intemaI concrete.The compressive strength can still increase after immerged in sea water.

关键词： sea water long term marine immerged microstructure concrete admixture

作者: Shurong Feng Zhonghua Li Chao Su

作者单位: Mid-South Design and Research Institute, CHECC Changsha China 410014 Mid-South Design and Research Institute, CHECC Changsha China 410014;College of Mechanics and Materi College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing China210098

会议类型: 国际会议

会议名称: the Second International Conference on Frontiers of Manufacturing and Design Science(第二届制造与设计科学国际会议(ICFMD 2011))

会议地点: 台湾

会议语种:英文

页码: 583-586

在线出版日期: 2011-12-11（万方平台首次上网日期，不代表论文的发表时间）