中华人民共和国住房和城乡建设部公告

前　言

1　总　则

2　术语和符号

• 2.1　术　语

• 2.2　符　号

3　基本规定

• 3.1　一般规定

• 3.2　环境类别与作用等级

• 3.3　评定程序和工作内容

4　调查与检测

• 4.1　一般规定

• 4.2　使用条件调查

• 4.3　结构耐久性现状检测

5　一般环境混凝土结构耐久性评定

• 5.1　一般规定

• 5.2　钢筋开始锈蚀耐久性评定

• 5.3　混凝土保护层锈胀开裂耐久性评定

• 5.4　混凝土保护层锈胀裂缝宽度限值耐久性评定

6　氯盐侵蚀环境混凝土结构耐久性评定

• 6.1　一般规定

• 6.2　钢筋开始锈蚀耐久性评定

• 6.3　混凝土保护层锈胀开裂耐久性评定

7　冻融环境混凝土结构耐久性评定

• 7.1　一般规定

• 7.2　混凝土构件表面剥落耐久性评定

• 7.3　钢筋锈蚀耐久性评定

8　硫酸盐侵蚀混凝土结构耐久性评定

• 8.1　一般规定

• 8.2　混凝土构件腐蚀损伤耐久性评定

9　混凝土碱-骨料反应耐久性评定

• 9.1　一般规定

• 9.2　混凝土碱-骨料反应耐久性评定

10　结构耐久性综合评定

11　锈蚀构件可靠性评定的刚度和承载力计算

• 11.1　一般规定

• 11.2　锈蚀钢筋混凝土构件承载力计算

• 11.3　锈蚀钢筋混凝土受弯构件刚度计算

附录A　钢筋锈蚀深度计算

附录B　混凝土碳化系数计算

附录C　一般环境钢筋开始锈蚀与混凝土保护层锈胀开裂时间计算

附录D　氯离子扩散及其引起的钢筋锈蚀速率计算

附录E　混凝土硫酸盐腐蚀速率与硫酸根离子浓度计算

本标准用词说明

引用标准名录

1　General Provisions

2　Terms and Symbols

3　Basic Requirements

• 3.1　General Requirements

• 3.2　Environment Classification and Action Grade

• 3.3　Evaluation Procedure and Content

4　Investigation and Detection

• 4.1　General Requirements

• 4.2　Environmental Investigation

• 4.3　Structural Durability State Detection

5　Durability Assessment of Concrete Structure in General Environment

• 5.1　General Requirements

• 5.2　Initial Corrosion of Steel Bars

• 5.3　Concrete Cover Cracking due to Corrosion

• 5.4　Limit Value of Corrosive Crack Width in Concrete Cover

6　Durability Assessment of Concrete Structure in Chloride Environment

• 6.1　General Requirements

• 6.2　Initial Corrosion of Steel Bars

• 6.3　Concrete Cover Cracking due to Corrosion

7　Durability Assessment of Concrete Structure in Freezing-thawing Environment

• 7.1　General Requirements

• 7.2　Surface Spalling of Concrete Members

• 7.3　Corrosion of Steel Bars

8　Durability Assessment of Concrete Structure in Sulphate Environment

• 8.1　General Requirements

• 8.2　Corrosion Damage of Concrete Members

9　Durability Assessment of concrete structurewith Alkali Aggregate Reaction

• 9.1　General Requirements

• 9.2　Concrete Alkali Aggregate Reaction

10　Comprehensive Evaluation of Structural Durability

11　Calculation of Stiffnessand Bearing Capacity in Reliability Assessment of Corroded Components

• 11.1　General Requirements

• 11.2　Bearing Capacity of Corroded Reinforced Concrete Member

• 11.3　Stiffness of Corroded Reinforced Concrete Member

Appendix A　Estimation of Corrosion Depth of Steel Bar

Appendix B　Calculation of Carbonization Coefficient of Concrete

Appendix C　Calculation of Initial Corrosion and Concrete Cover Cracking due to Reinforcement Corrosion in General Environment

Appendix D　Calculation of Chloride Diffusion and Corrosion Rate of Steel Bar

Appendix E　Calculation of Sulfate Corrosion Rate and Sulfate Ion Concentration

Explanation of Wording in This Standard

List of Quoted Standards