摘要: |
The Corps of Engineers is responsible for maintaining numerous steel structures that are subjected to conditions of constant condensation inside locks and dams. The surfaces of these structures normally can be blast cleaned to a white metal grade, but condensation and/or water leaking around seals immediately make the surfaces too wet for the application of many coatings. The coatings industry has recently developed and marketed new coatings that adhere to wet or damp steel. In this study, a number of these products were evaluated, both in the laboratory and on structures in the field. Results indicate that some of these coatings hold promise for long-term corrosion protection. Based on the results, a draft Commercial Item Description is included to specify durable coatings for wet and damp steel surfaces. |