Reviewing the development process of durability standards for concrete structures, the classification of environmental effects and their grades is more detailed and specific; The concepts and theories of performance degradation, durability limit state, and design service life are clearer; On this basis, the methods from prescriptive design to performance-based design and quantitative design are more systematic and comprehensive.
Therefore, the durability technology of concrete structures is very extensive, involving environmental classification, damage mechanisms and models, ultimate state design, materials, construction and protection, and many other aspects.
It is not easy to do a good job in durability design and construction.
However, general engineering and technical personnel should strictly control three core indicators in design and construction: water cement ratio, protective layer thickness, and concrete strength.
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