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This specification covers steel wire and steel welded wire fabrics which are either plain or deformed, and coated with protective polyvinyl chloride (PVC). Class A material is intended for use as concrete reinforcement and Class B for reinforcement in earth. Coating materials shall adhere to chemical resistance requirements. The surface of the material to be coated shall be cleaned by abrasive blast cleaning to near-white metal. The coating shall be applied to the cleaned surface as soon as possible after cleaning and before oxidation, as discernible to the unaided eye, occurs. The coating shall conform to set coating thickness and holidays. Adhesion of coating shall be evaluated by bending test. Guidelines for inspection, rejection and certification are also given.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers plain and deformed steel wire and plain and deformed steel welded wire reinforcement with protective vinyl (polyvinyl chloride, or polyvinyl chloride powder compound) coating. A Class A minimum coating thickness 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 reinforcement intended for use in mechanically stabilized earth applications.
1.2 Other thermoplastic organic coatings may be used provided they meet the requirements of this specification.
1.3 Requirements for coatings are contained in Annex A1.
1.4 Requirements for patching materials are contained in Annex A2.
1.5 The text of this specification contains notes or footnotes, or both, that provide explanatory material. Such notes and footnotes, excluding those in tables or figures, do not contain any mandatory requirements.
1.6 This specification is applicable for orders in either inch-pound units (as Specification A933) or in SI units [as Specification A933M].
1.7 The values stated in either inch-pound units 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 of the other. Combining values from the two systems may result in non-conformance with the standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
National Association of Corrosion Engineers StandardsRP-287-87 Field Measurement of Surface Profile of Abrasive Blast Cleaned Steel Surface Using a Replica Tape TM-01-70 Visual Standard for Surfaces of New Steel Air Blast Cleaned with Sand Abrasive (NACE No. 2) TM-01-75 Visual Standard for Surfaces of New Steel Centrifugally Blast Cleaned with Steel Shot or Steel Grit (NACE No. 2)
A775/A775M Specification for Epoxy-Coated Steel Reinforcing Bars
A884/A884M Specification for Epoxy-Coated Steel Wire and Welded Wire Reinforcement
A1064/A1064M Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete
B117 Practice for Operating Salt Spray (Fog) Apparatus
D374 Test Methods for Thickness of Solid Electrical Insulation
D2240 Test Method for Rubber Property--Durometer Hardness
D2967 Test Method for Corner Coverage of Powder Coatings
D4060 Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser
G8 Test Methods for Cathodic Disbonding of Pipeline Coatings
G12 Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel
G14 Test Method for Impact Resistance of Pipeline Coatings (Falling Weight Test)
G20 Test Method for Chemical Resistance of Pipeline Coatings
Steel Structures Painting Council SpecificationsSSPC-PA2 Measurement of Dry Coating Thickness with Magnetic Gages SSPC-SP 10 Near-White Blast Cleaning SSPC-Vis 1 Pictorial Surface Preparation Standards for Painting Steel Surfaces SSPC-Vis 2 Standard Methods of Evaluating Degree of Rusting on Painted Steel Surfaces
ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
UNSPSC Code 30111900(Concrete reinforcement hardware)
ASTM A933 / A933M-14, Standard Specification for Vinyl-Coated Steel Wire and Welded Wire Reinforcement, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top