混凝土结构钢筋腐蚀的影响因素及防护摘要: 钢筋混凝土结构从出现到21 世纪,经历了比较久的发展时期,并且依旧占据着建筑结构中最重要的一部分。然而,近年来的工程实际情况表明,在役钢筋混凝土结构因为耐久性问题而引起破坏的现象越来越严重,因此,有必要对钢筋锈蚀对混凝土结构耐久性的影响做研究。尤其是混凝土中影响钢筋锈蚀的因素和针对这些因素所采取的措施。关键词: 混凝土结构;耐久性;钢筋锈蚀;预防措施Factors Influencing The Corrosion of Steel In Concrete And Its Protection Abstract:From being create to twenty-first century,Reinforced concrete structure experienced a period of development for a long time, and still plays the most important part of the building structure. However, the actual situation of the project shows that in recent years, the damage caused by durability problems in existing reinforced concrete structure is more and more serious, which is leaded by the orrosion of steel bar give a large part. Therefore, it is necessary to do research on the influence of reinforcement corrosion on the durability of concrete structures. Especially the influence factors of steel corrosion in concrete and the measures taken in response to these factors.Keywords:reinforced concrete structure;durability ; corrosion;prevention measures 0 引言最开始人们认为,钢筋混凝土结构很好地结合了钢筋与混凝土材料的优点,可模性好、可塑性强、整体性好、耐久性好、后期维护费用较低以及易于就地取材等诸多优点使得当今世界上的建筑大多选择采用钢筋混凝土结构。但随着时间的推后和累积, 钢筋混凝土结构远远没有人们当初想象的那样耐久,其良好性能会在使用期内由于诸多因素的影响而逐渐退化从而引起世界上对耐久性问题的关注。特别是由于混凝土中钢筋的腐蚀引起的混凝土可靠性的降低[1]。随着腐蚀的加剧将导致混凝土保护层开裂、钢筋与混凝土间粘结力破坏、 钢筋受力截面减小、结构强度降低等一系列不良后果。据统计全世界每年因混凝土结构耐久性问题造成的社会经济损失十分巨大。美国目前整个混凝土工程的价值约为60...