How to deal with cracks on the surface of steel structure engineering coatings

With the accelerated development of the world economy, the application of steel structures has become more and more extensive, so do you all understand the use of this material, precautions and measures to deal with problems? For the convenience of everyone's use, the following SAFS steel The structure explains in detail the treatment method for cracks on the surface of the steel structure coating. I hope you can get the required knowledge from the article.

 

  Cause Analysis:

1. The coating is too thick, the surface has been dried and consolidated, but the interior is still in the process of curing;

 

2. When the thick coating is not dry enough to apply the subsequent coating, apply a new layer of protective coating;

 

3. The temperature of the construction environment of the fireproof coating is too high, which causes the surface to rapidly cure and crack.

 

  Prevention:

1. It should be mixed according to the requirements of the fireproof coating product manual, and the thickness should be multi-layered according to the steel structure construction process;

 

2. Covering a new coating on a thick coating should be carried out after the minimum coating interval of the thick coating;

 

3. Under the high temperature in summer, the coating construction should avoid exposure to the sun and pay attention to maintenance;

 

4. Rework should be carried out for the coating whose surface crack width is larger than that required by the acceptance specification;

 

5. To deal with coating cracks, pneumatic tools or hand tools can be used to remove the cracks and the coating in the surrounding area, and then layer them for repair and coating.

 

Through the content explained above, you can understand the treatment method for cracks on the surface of this steel structure and the reasons for this problem. I hope that in the future operation and use, everyone should pay more attention to this problem.