浅谈混凝土结构耐久性破损中钢筋锈蚀机理与处理措施  

作　　者：刘礼军[1] 

机构地区：[1]广东省建筑科学研究院,510500

出　　处：《建筑知识：学术刊》2013年第B07期188-189,共2页Architectural Knowledge

摘　　要：钢筋混凝土结构是土木工程结构中应用最广泛的结构形式之一，由于荷载作用和环境侵蚀使得混凝土中的钢筋容易发生锈蚀，随着锈蚀的发生与加剧，锈蚀产物体积膨胀导致混凝土保护层胀裂或剥落，造成钢筋混凝土结构发生耐久性破坏，由此引起的钢筋混凝土结构承载力降低和使用寿命减小是工程界的难题，对受损建筑进行加固和修复是提高其耐久性的有效方法。本文对钢筋混凝土耐久性劣化机理、钢筋锈蚀的原因进行了综述，结合工程实例提出了处理钢筋锈蚀所采取的措施。Reinforced concrete structure is one of the most widely used structure types in civil engineering, the rebars in reinforced concrete are prone to corrosion beeanse of the load effect and the environment corrosion, The volume expanding of bar corrosion product in concrete leads concrete protective layer eraeking or spalling with corrosion developing, and then durability failure of the concrete structure happens, which cause the reinforced concrete structures lower bearing capacity and shorter service life has been a challenge in the engineering circle, therefore, strengthening and the repair of the damaged building is an effective way to improve its durability. This article makes a comprehensive review on the durability and deterioration mechanism of reinforced concrete and the causes of reinforcement corrosion, combining with engineering examples, provides the measures to deal with the reinforcement corros~ion .

关 键 词：钢筋混凝土 钢筋锈蚀 耐久性 处理措施 

分 类 号：TU375[建筑科学—结构工程]