ASTM A884:19 pdf download

ASTM A884:2019 pdf download.Standard Specification for Epoxy-Coated Steel Wire and Welded Wire Reinforcement.
5.2 Type I coatings shall meet the requirements of and shall he qualified in accordance with Annex Al of Specification A775/A775M. Type 2 coatings shall meet the requirements of and shall be qualified in accordance with Annex Al 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 he furnished to the purchaser 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 recommendations 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 sufficient 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 kgl sample of the 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. Patching material for Type I coatings shall meet requirements of Specification A775/A775M. Patching material for Type II coatings shall meet requirements of Specification
A934/A934M.
5.4.1 The patching material manufacturer shall specify the steel surface preparation, the coating thickness and the procedures for application of the patching material.
5.4.2 If specified in the order, patching material shall be supplied to the purchaser.
6. Surface Preparation
6. 1 The surface of the steel wire or welded wire reinforcement to be coated shall be cleaned by abrasive blast cleaning to near-white metal in accordance with SSPC-SP 10. The final surface condition shall be defined according to SSPC-VIS 1. Average blast profile maximum roughness depth readings of 1.5 to 4.0 mils [40 to 100 aim] as determined by the use of a profilometer type surface measurement instrument that Incasures the peak count as well as the maximum profile depth, according to Test Methods D441 7, Method B. or as determined by replica tape measurements using Test Methods D44l7, Method C, shall he considered a suitable method to measure the anchor pattern.