What is the protective layer of steel bar
This protective layer is the distance between the periphery of the first layer of steel bar and the cement surface, and it is used to protect the steel bar from carbon dioxide corrosion in the air. Attention should be paid to the thickness of this protective layer during construction. If the thickness is not enough, carbon dioxide in the air will invade the steel bars and rust will occur during use.
What are the disadvantages of insufficient thickness of reinforced concrete cover
1. It has an impact on the cooperative work between reinforced concrete
If the thickness of reinforced concrete cover is insufficient, it will directly affect the working efficiency between it and concrete. The concrete structure is composed of steel bars and concrete, both of which have good cohesiveness, but there are certain requirements for the protective layer of reinforced concrete. If its thickness is not up to standard, the required strength cannot be exerted between them.
2. Corrosion of steel bars
If the protective layer of reinforced concrete is not thick enough, the steel bars will be exposed to the atmosphere, and corrosion will occur after a long time, thus reducing its effective cross section and having a certain impact on the structural stress of steel bars. Therefore, we must pay attention to it in the construction process, and it must be strictly implemented in accordance with the regulations. Protective layers with different thicknesses should be used for different environments, so as to ensure the service life of steel bars. For example, if there are fire protection requirements, the protective layer should be set according to the fire resistance of the building.
article summary: the above is all about what the protective layer of reinforced concrete is and what are the disadvantages of the insufficient thickness of the protective layer of reinforced concrete. I hope it will help everyone. For more information, please continue to pay attention to Qijia. com.