碳化引起混凝土锈胀开裂前钢筋锈蚀量的研究  

Steel corrosion extent in reinforced concrete structures before corrosion cracking by carbonization

作　　者：陈莹[1] 王天稳[1] 

机构地区：[1]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《混凝土》2005年第12期63-66,共4页Concrete

摘　　要：在分析碳化引起的钢筋混凝土构件中钢筋腐蚀机理和已有钢筋锈蚀量预测模型的基础上,建立了全面考虑氧气浓度、温度、相对湿度、保护层厚度、钢筋直径和混凝土强度的多因素钢筋锈蚀量预测模型,且进行了实际工程的验证,可为混凝土结构耐久性评估、可靠性鉴定提供科学的依据。Based on the mechanism of rebar corrosion in reinforced concrete member by carbonization and present prede- termined model, a multi-factor predetermined model of steel corrosion extent is established. The model considers thoroughly the effect of oxygen diffusion, temperature, relative humidity, concrete cover thickness, rebar diameter and compressive strength of concrete, at last the model is provided in a practical engineering. So a scientific basis is provided for the durability estimation, the durability appraisal of concrete structures.

关 键 词：钢筋锈蚀量 钢筋混凝土 碳化 

分 类 号：TU528.01[建筑科学—建筑技术科学]