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This NACE standard presents guidelines for cathodic protection (CP) of reinforcing steel in buried or submerged concrete structures. These guidelines provide corrosion control personnel with information to control corrosion of conventional reinforcing steel in portland cement concrete structures through the application of CP. The guidelines presented in this standard are limited to CP systems for new or existing buried or submerged reinforced concrete elements.
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Inspection of deaerator system welds. Boiler feedwater deaerator cracking. Design and fabrication of vessels and repair of existing vessels. Operational and water chemistry parameters.
There are several design factors that need to be considered when specifying coatings in water and wastewater concrete structures. Issues include treating surfaces with exposed aggregate, with a low pH, and exposed reinforcing steel. This paper will present three examples of important design considerations based on field experiences that can avert lining performance problems and impacts on a project schedule or budget. Specific examples from a number of projects will be used to illustrate these design considerations.
This standard is one of a set of three standards that define levels of surface cleanliness for concrete substrates pre- pared using abrasive blast cleaning. The cleanliness levels are based on 1) the extent of removal of the existing coating and 2) the extent to which surface air voids are opened. Thorough Blast Cleaning (SSPC-SP CAB-1), defines the highest level of cleanliness. The other two standards in the set, Intermediate Blast Cleaning (SSPC-SP CAB-2) and Brush Blast Cleaning (SSPC-SP CAB-3), define lesser levels of concrete cleanliness. All three levels of cleanliness require complete removal of all unsound surface materials, all efflorescence, and all laitance.
This paper discusses cooling water treatment program metal-phosphate/phosphonate scale formation control efficacy when operating under stressed alkaline conditions (e.g., high temperatures, suspended solids, and iron).
Galvanized steel pipe is protected by a layer deposited by hard water, but may suffer corrosion in soft water. Presented are case studies of corrosion in galvanized water piping in a stadium, hotel, and county government building. Details of corrosion mechanism and mitigation strategies are also discussed.
This paper will look at the evolution of coatings and linings in wastewater treatment and what has changed the way we look at protective coatings for concrete substrates. We will look at the coatings and linings used in the past, those used today, and what will be required in the future. The paper will discuss the advantages and disadvantages of varying coating types and why they are or are not still in use.
NEPCOAT stands for the Northeast Protective Coating Committee and is comprised of tenmember Departments of Transportation, from Connecticut, Delaware, Massachusetts, Maine,New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont. NEPCOATwas founded in 1992 and has for thirty years evaluated and qualified paint systems for use onbridges, both for shop-applied new steel, and field-applied totally cleaned existing steel.
CLEARANCE!!
This unique book provides standardized definitions for more than 15,000 water-related words, phrases, acronyms, chemicals, microorganisms, units of measure, formulas, and calculations. 3,000 entries have been updated in the second edition.
This standard provides a test method to evaluate coatings containing conductive carbon additives for use as an anode on atmospherically exposed reinforced concrete.
Test method to evaluate coatings w/conductive carbon pigmentation as Cathodic Protection (CP) anodes on atmospherically exposed reinforced concrete. Anode coatings are not to provide a protective barrier. HISTORICAL DOCUMENT
Two test methods for evaluating water quality for subsurface injection: A-Rate vs Cumulative Volume (for water quality monitoring) B-Suspended Solids Test (for diagnosis or monitoring). Historical Document 1984