The petrochemical industry atmosphere causes significant corrosion and damage to the concrete structures of production facilities
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The image below shows a petrochemical acidic water stripping production unit, in which the concrete load-bearing pillars and equipment foundations have suffered spalling and damage. What protection methods should be used against such damage?
To address the corrosion-induced damage to concrete in petrochemical plants, the following protection methods are recommended: 1. **Surface treatment**: Thoroughly remove any pulverized or loose concrete until a solid substrate is exposed. 2. **Corrosion-resistant coating protection**: - Apply a high-performance epoxy corrosion-resistant primer to penetrate and strengthen the base surface. - Glass flake epoxy paint or polyurea elastomer is used as the intermediate and top layers to create a dense, impermeable barrier. 3. **Structural repair and reinforcement**: - Use polymer-modified cement mortar or epoxy mortar to repair damaged areas. - If necessary, carbon fiber fabric or steel structures can be outsourced for reinforcement. 4. **Long-term measures**: - Improve regional ventilation to reduce the accumulation of corrosive gases. - Establish a regular inspection and maintenance system. It is recommended to first have a professional agency conduct testing and assessment, and then develop a detailed plan based on the specific degree of corrosion and structural requirements. .