ASTM A934/A934M-07

    Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars

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    1. Scope

    1.1 This specification covers deformed and plain steel reinforcing bars which prior to surface preparation are prefabricated and then coated with a protective fusion-bonded epoxy coating by electrostatic spray or other suitable method.

    1.2 Prefabricated steel reinforcing bars coated with fusion-bonded epoxy formulations in accordance with this specification are not intended to be bent or rebent.

    Note 1

    Experience has shown epoxy-coated prefabricated steel reinforcing bars have limited capability to be successfully field bent or rebent (see ). If the construction project requires epoxy-coated steel reinforcing bars that must be able to sustain field bending or rebending, the use of coated bars conforming to Specification A 775/A 775M should be considered.

    1.3 Organic coatings other than epoxy may be used provided they meet the requirements of this specification.

    1.4 Requirements for epoxy coatings are contained in Annex A1.

    1.5 Guidelines for application process and product test procedures of epoxy coatings for steel reinforcing bars are presented in Appendix X1.

    1.6 Guidelines for construction practices at the job-site for coated steel reinforcing bars are presented in Appendix X2.

    1.7 This specification is applicable for orders in either SI (metric) units (as Specification A 934M) or inch-pound units [as Specification A 934].

    1.8 &combined-units;

    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 appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    NACE International Standard

    RP0287 Field Measurement of Surface Profile of Abrasive Blast Cleaned Steel Surfaces Using a Replica Tape

    ASTM Standards

    A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

    A706/A706M Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement

    A775/A775M Specification for Epoxy-Coated Steel Reinforcing Bars

    A944 Test Method for Comparing Bond Strength of Steel Reinforcing Bars to Concrete Using Beam-End Specimens

    A996/A996M Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement

    B117 Practice for Operating Salt Spray (Fog) Apparatus

    D4060 Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser

    G8 Test Methods for Cathodic Disbonding of Pipeline Coatings

    G14 Test Method for Impact Resistance of Pipeline Coatings (Falling Weight Test)

    G20 Test Method for Chemical Resistance of Pipeline Coatings

    G42 Test Method for Cathodic Disbonding of Pipeline Coatings Subjected to Elevated Temperatures

    G62 Test Methods for Holiday Detection in Pipeline Coatings

    ICS Code

    ICS Number Code 77.140.15 (Steels for reinforcement of concrete)

    UNSPSC Code

    UNSPSC Code 30103623(Reinforcing bar or rebar or mesh)

    Referencing This Standard
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    DOI: 10.1520/A0934_A0934M-07

    Citation Format

    ASTM A934 / A934M-07, Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars, ASTM International, West Conshohocken, PA, 2007,

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