How Much Is The Protective Layer Of The Wall Panel?

The thickness of the protective layer of the wall panel is generally 10~15mm
The thickness of the protective layer of the wall panel varies according to the specific design and environmental conditions. The following is a detailed description: ‌

‌General requirements‌
The thickness of the protective layer of the wall panel is usually ‌10~15mm‌, and should not be less than the maximum diameter of the stressed steel bar.

‌Requirements in special environments‌

In an environment with high humidity, if the concrete strength is below C20, the thickness of the protective layer of the wall panel needs to reach ‌35mm‌; if the concrete strength reaches C25 or C30, the thickness of the protective layer is ‌25mm‌; if the concrete strength exceeds C35, the thickness of the protective layer can be reduced to ‌15mm‌.
For waterproof concrete structures, the thickness of the steel bar protective layer on the water-facing surface should not be less than ‌50mm‌ to ensure the durability and waterproof performance of the structure.
‌Design specifications and adjustments‌
According to the "Concrete Structure Design Code" GB50010-2010, the determination of the protective layer thickness needs to comprehensively consider the steel bar diameter, concrete strength, structural location and environmental category. In actual projects, the thickness of the protective layer can be appropriately adjusted according to specific conditions. For example, when a reliable protective layer is covered on the surface of the component or prefabricated components are used, the thickness of the protective layer can be appropriately reduced.

In summary, the thickness of the protective layer of the wall panel needs to be flexibly determined according to specific design requirements and environmental conditions to ensure the safety and durability of the structure.