ASTM A884-2019 pdf free download

ASTM A884-2019 pdf free download.Standard Specification for Epoxy-Coated Steel Wire and Welded Wire Reinforcement
1. Scope
1.1 This specification covers plain and deformed steel wire and plain and deformed steel welded wire reinforcement with protective epoxy coating. A Class A minimum coating thick- ness is required for wire and welded wire reinforcement intended for use in concrete and masonry. A Class B minimum coating thickness is required for wire and welded wire rein- forcement intended for use in mechanically stabilized earth applications. A Type 1 coating is a fusion-bonded epoxy coating that has been formulated to be sufficiently flexible to allow bending of the coated wire or welded wire reinforce- ment. A Type 2 coating is a fusion-bonded epoxy coating that has not been designed to be sufficiently flexible to allow bending of the coated wire or welded wire reinforcement. N OTE 1—The coating applicator is identified throughout this specifica- tion as the manufacturer. 1.2 This specification is applicable for orders in either inch-pound units (as Specification A884) or SI units [as Specification A884M]. 1.3 The values stated in either inch-pound or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently ofthe other except as specifically noted in Table 1. Combining values from the two systems may result in non-conformance with this specification. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom-mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
5. Materials
5.1 Plain or deformed steel wire or welded wire reinforce- ment to be coated shall meet the requirements of Specification A1064/A1064M and shall be free ofsurface contaminants such as oil, grease, or paint when received at the manufacturer’s plant and prior to cleaning and coating. 5.2 Type 1 coatings shall meet the requirements of and shall be qualified in accordance with Annex A1 of Specification A775/A775M. Type 2 coatings shall meet the requirements of and shall be qualified in accordance with Annex A1 of Specification A934/A934M. Upon request, the purchaser shall be provided with data demonstrating that these products meet the specifications. 5.2.1 A written certification shall be furnished to the pur- chaser that properly identifies the designation of each lot of powder coating used in the order, material quantity represented, date of manufacture, name and address of the powder coating manufacturer, and a statement that the supplied powder coating is the same composition as that qualified in accordance with 5.2. 5.2.2 The powder coating shall be stored in a temperature- controlled environment in accordance with the written recom- mendations of the powder coating manufacturer until ready for use. At this point, if the storage temperature is below the plant ambient temperature, the powder coating shall be given suffi- cient time to reach approximate plant ambient temperature. The powder coating shall be used within the powder coating manufacturer’s written recommended shelf life. 5.3 If specified in the order, a representative 8 oz [0.2 kg] sample ofthe powder coating shall be supplied to the purchaser from each batch. The sample shall be packaged in an airtight container and identified by batch number. 5.4 Patching material for repairing damaged coating shall be compatible with the coating, inert in concrete, and formulated for use at coating applicator plants, fabrication shops and job-sites.