陈改新.混凝土耐久性的研究、应用和发展趋势[J].中国水利水电科学研究院学报,2009,(2):
混凝土耐久性的研究、应用和发展趋势
Application and development tendency of concrete durability research
  
DOI:
中文关键词:  混凝土  耐久性  定量分析  预测模型
英文关键词:concrete  durability  quant itative analysis  prediction model
基金项目:水利部公益性行业科研专项项目?
作者单位
陈改新 中国水利水电科学研究院结构材料研究所, 北京?? 100038 
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中文摘要:
      实现混凝土工程的高耐久和长寿命是效益巨大的节能减排和可持续发展之举措,混凝土的耐久性成为影响混凝土技术未来发展的关键技术已成为共识.本文在钢筋锈蚀、冻融作用、环境水和盐类侵蚀及碱骨料反应等4个方面总结了混凝土耐久性研究现状,综述了近半个世纪以来部级规范和技术规定,列举了混凝土耐久性研究成果在长江三峡、青藏铁路、杭州湾跨海大桥和南水北调中线等工程中的应用,还分析了混凝土耐久性整体理论模型和混凝土结构寿命周期评定两个方面的新认识和新发展.
英文摘要:
      Realization of high durability and long life of concrete projects is a beneficial measure for energy??saving and emission??reducing. It has become a common understanding that concrete durability is one of the key points for future development of concrete technologies. In this paper, the current research situation, achievements and pplication of concrete durability are presented in 4 aspects: reinforcement corrosion, freezing and thawing, corrosion by ambient water and salts, and alkali??aggregate reaction. The research results have been applied in many giant projects, such as Three Gorges Project , Qinghai??Tibet??railway, Hangzhou Bay Cross??sea Bridge and the Mid??route Project of Water Transfer from South??to north, etc. The author discusses research works on integrated theoretical models of concrete durability and life cycle assessment for concrete structures.
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