NACE 6G197

Abstract

<strong>Foreword</strong> <br>his state-of-the-art report covers the design, installation, and maintenance of polymeric coating systems that are applied and directly bonded to concrete in secondary containment applications. This report is intended to inform manufacturers, specifiers, applicators, and facility owners who are required to contain chemicals and/or protect concrete in these applications. <br>Concrete is used in secondary containment structures because it is a cost-effective material if properly designed and installed. A chemical-resistant coating is often applied to the concrete to extend the service life of the secondary containment structure and properly contain the chemicals. <br>Numerous recommended practices, specifications, guides, conference proceedings, books, and technical papers have been published by NACE, SSPC, and other organizations covering the many aspects of coatings for concrete. This report focuses on those aspects of the design, materials, and procedures that are specific to coatings for concrete in secondary containment applications, making reference to other publications when appropriate. While there are numerous successful commercial products and designs for containment of chemicals, this report focuses on concrete structures that are coated with thermoset polymer coating systems. Other potentially effective containment systems, such as acidresistant brick and thermoplastic liners, are not described in this report. <br>Coatings used in secondary containment applications are also called linings, lining systems, or protective barrier systems; however, for simplicity they will be referred to as coatings or coating systems in this report. <br>This technical committee report was drafted by NACE Task Group T-6H-52, a subcommittee of T-6H on Coating Materials for Atmospheric Service. NACE/SSPC Joint Task Group H* completed the report, which is published by NACE International under the auspices of Group Committee T-6 on Protective Coatings and Linings and by the Steel Structures Painting Council.