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    ASTM C779 / C779M - 12

    Standard Test Method for Abrasion Resistance of Horizontal Concrete Surfaces

    Active Standard ASTM C779 / C779M | Developed by Subcommittee: C09.62

    Book of Standards Volume: 04.02

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    Significance and Use

    4.1 The three test methods provide simulated abrasion conditions, which can be used to evaluate the effects on abrasion resistance of concrete, concrete materials, and curing or finishing procedures. They may also be used for quality acceptance of products and surface exposed to wear. They are not intended to provide a quantitative measurement of length of service.

    4.2 The equipment used by each of these procedures is portable and thus suitable for either laboratory or field testing. The three procedures determine the relative wear of concrete surfaces as follows:

    4.2.1 Procedure A—The revolving-disk machine operates by sliding and scuffing of steel disks in conjunction with abrasive grit.

    4.2.2 Procedure B—The dressing-wheel machine operates by impact and sliding friction of steel dressing wheels.

    4.2.3 Procedure C—The ball-bearing machine operates by high-contact stresses, impact, and sliding friction from steel balls.

    Note 2—Diagrams of three machines meeting these specifications are shown in Fig. 1, Fig. 2, and Fig. 3.4
    Revolving Disks Abrasion Test Machine
    FIG. 1 Revolving Disks Abrasion Test Machine
    Dressing Wheel Abrasion Test Machine
    FIG. 2 Dressing Wheel Abrasion Test Machine
    Ball Bearing Abrasion Test Machine
    FIG. 3 Ball Bearing Abrasion Test Machine
    PROCEDURE A—REVOLVING DISKS

    1. Scope

    1.1 This test method covers three procedures for determining the relative abrasion resistance of horizontal concrete surfaces. The procedures differ in the type and degree of abrasive force they impart, and are intended for use in determining variations in surface properties of concrete affected by mixture proportions, finishing, and surface treatment. They are not intended to provide a quantitative measurement of the length of service that may be expected from a specific surface.

    1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of each other.

    1.3 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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.)2

    Note 1—Other procedures are available for measuring the abrasion resistance of concrete surfaces in addition to the three procedures contained in this test method. Consideration should be given to Test Methods C944 and C418. The test method most closely representing service conditions should be used.


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

    ASTM Standards

    C125 Terminology Relating to Concrete and Concrete Aggregates

    C418 Test Method for Abrasion Resistance of Concrete by Sandblasting

    C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

    C944 Test Method for Abrasion Resistance of Concrete or Mortar Surfaces by the Rotating-Cutter Method

    ICS Code

    ICS Number Code 91.100.30 (Concrete and concrete products)

    UNSPSC Code

    UNSPSC Code 30111500(Concrete and mortars)

    Referencing This Standard
    Link Here
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    DOI: 10.1520/C0779_C0779M-12

    Citation Format

    ASTM C779 / C779M-12, Standard Test Method for Abrasion Resistance of Horizontal Concrete Surfaces, ASTM International, West Conshohocken, PA, 2012, www.astm.org

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