基于耐久性能的混凝土寿命预测方法研究进展  

Research Development on the Service Life Prediction Method on Durability Behavior of Concrete

作　　者：孟乔 黄维蓉 MENG Qiao;HUANG Wei-rong(College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400041, China;College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400041, China)

机构地区：[1]重庆交通大学土木工程学院,重庆400041 [2]重庆交通大学材料科学与工程学院,重庆400041

出　　处：《科学技术与工程》2022年第5期1751-1759,共9页Science Technology and Engineering

基　　金：材料工程重庆市研究生联合培养基地基金(201902)。

摘　　要：基于耐久性能的混凝土寿命预测方法对提升混凝土工程可靠性和寿命预测技术提供了坚实基础,对不同重大工程服役环境下混凝土的安全具有推动作用。以结构混凝土,道路混凝土和海工混凝土为研究对象,讨论了现有基于碳化、酸雨腐蚀和疲劳情况下的结构混凝土,基于唯象理论、断裂力学理论和连续损伤力学理论下的道路混凝土以及基于菲克第二定律和Weibull分布下的海工混凝土的寿命预测模型。通过介绍不同模型的发展动态,总结不同服役环境下寿命预测模型的适用性,提出不同模型存在的问题,有效提高寿命预测准确度。The concrete life prediction method based on durability provides a solid foundation for improving the reliability of concrete engineering and life prediction technology,and promotes the safety of concrete under different major engineering service environments.Taking structural concrete,road concrete and marine concrete as the research object,the existing life prediction models of structural concrete based on carbonization,acid rain corrosion and fatigue,road concrete based on phenomenological theory,fracture mechanics theory and continuous damage mechanics theory,and marine concrete based on Fick's second law and Weibull distribution were discussed.The applicability of life prediction models under different service environments was summarized by introducing the development trend of different models,and the problems existing in different models were put forward to effectively improve the accuracy of life prediction.

关 键 词：混凝土 耐久性 寿命预测方法 可靠性 

分 类 号：U414[交通运输工程—道路与铁道工程]