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This paper introduces a novel method for chemical surface preparation of concrete surfaces that has been recognized by ASTM under a recent revision of ASTM D4260. Contractors will learn current methods used to prepare concrete in order to receive coatings. The objectives of the presentation are: to understand the current methods for surface preparation of concrete, to identify the current standard for chemically etching concrete and the new materials that have been developed that meet the revised standard, and to present the environmental advantages of the new product in a real world project example.
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This paper introduces a novel method for chemical surface preparation of concrete surfaces that has been recognized by ASTM under a recent revision of ASTM D4260. Contractors will learn current methods used to prepare concrete in order to receive coatings.
While traditional cleaning solutions can be time consuming, costly and ineffective, dry ice blast cleaning provides a completely dry solution that cleans faster and more efficiently, while reducing downtime and supporting environmental initiatives. This presentation will discuss the basic concepts of dry ice cleaning. Participants will learn the benefits of the process, as well as, how it can benefit their production, improve quality, and support an environmentally responsible production environment.
Esta norma conjunta da SSPC/NACE International aborda a preparação de superfícies de concreto antes da aplicação de revestimento ou sistemas de proteção. Esta norma deve ser usada pelos especificadores, aplicadores, inspetores e outros responsáveis por definir um grau padrão de limpeza, resistência, perfil e secura de superfícies de concreto preparadas.
This paper will discuss cost reduction of building and maintaining Navy Ships. Specifications, inspection, preparation, and application will also be discussed.
In the summer of 2014 Vulcan Painters spearheaded a project to do surface preparation and recoat seven historic military tanks, asking for help from the industrial painting community, from contractors and suppliers. The aim of the project was to finish the work without expense to the foundation that sought to build a new museum to house 200 years of U.S. Army armor and cavalry history.
This paper describes key technical attributes of an innovative high ratio calcium sulfonate alkyd (HR CSA) overcoat system, and how they allowed for the successful overcoating of a lead-based alkyd paint system on a penstock exterior at a Canadian hydroelectric facility, utilizing only 5,000 psi pressure washing for surface preparation. The case history provided outlines how the coating system also lent itself well in helping to solve different crevice corrosion issues.
Duplex systems, also known as painting over hot dip galvanized steel, are extremely effective corrosion protection systems. However, careful surface preparation techniques need to be used to alleviate potential coating failures. The age and characteristics of the galvanized coating should be used to determine what type of surface preparation is needed.
Floating production storage offloading (FPSO) system hulls physically resemble ocean going transport vessels but operate more like fixed offshore structures. FPSOs normally are moored in deep water and are connected to unique riser systems. As these production systems are typically designed for long life, 20 to 30 years, corrosion control of the hull is extremely critical to help assure the required performance is obtained.
The NSRP Surface Preparation and Coatings panel sponsored a project to reduce the extent of abrasive blasting to remove aged, ultra-high solids coatings from tanks and other spaces on Navy ships. This “partial blast” process allows a percentage of remaining serviceable Ultra High Solids (UHS) to remain. After surface preparation, a single coat application of UHS coating is applied to all surfaces.
This paper investigates a key concern with Ultra High Pressure Waterjetting (UHPWJ) surface preparation – the impact of “flash rusting” on coating life. Flash rusting can occur under certain environmental conditions when the steel is left sufficiently wet following UHPWJ. Reducing or eliminating flash rusting can increase the cost of surface preparation. However, flash rust’s impact on coating life is debated.
The use of an Aromatic Polyurea lining in an effluent wastewater clarifier tank in Idaho in the Spring of 2017. This clarifier is owned by one of the world’s largest privately held companies with a proven track record in the Wastewater Industry. The clarifier is constructed out of carbon steel for the wall sections with about 4,000 square feet (372 square meters) of surface area. The floor of the clarifier is concrete and was not coated during the project as the coating on the concrete floor was still in good overall condition.