影响钢筋砼桥梁使用寿命的因素之一——砼的碳化机理及其影响因素分析  

Mechanism and factor analysis of concrete carbonation and resulted reduction of RC bridge service lives

作　　者：张广山[1] 赵华[1] 蒙云[1] 

机构地区：[1]重庆交通学院桥梁及结构工程系,重庆400074

出　　处：《重庆交通学院学报》2004年第3期5-9,共5页Journal of Chongqing Jiaotong University

摘　　要：钢筋砼桥梁使用寿命的研究越来越受到众多国家和学者的关注,影响桥梁使用寿命的因素多种多样.笔者根据国内外已有的研究文献,就影响钢筋砼桥梁使用寿命的主要因素之一-砼碳化进行了详细的阐释.主要从材料、施工、外界环境等层次分析了影响砼碳化的综合因素,并对钢筋砼桥梁使用寿命评估、提高和延长新桥及已有旧桥的使用寿命等提出了建议.More and more scholars and states are paying intensive attention to the study of service lives of reinforced concrete (RC) bridges.The factors affecting the service life are diverse. According to the latest research progress home and aboard, the paper discusses the main factors affecting the service life-concrete carbonation ,and synthetizes the factors affecting carbonation in 3 aspects: material,enviormental actions and construction, at last, gives some effective advices and measures to the assesent of the sevice lives of RC bridges and how to improve and extend the sevice lives of RC bridges.

关 键 词：桥梁工程 砼碳化 综述 影响因素 使用寿命 

分 类 号：TU528.33[建筑科学—建筑技术科学]