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    ASTM D6932 / D6932M - 21

    Standard Guide for Materials and Construction of Open-Graded Friction Course Plant Asphalt Mixtures

    Active Standard ASTM D6932 / D6932M | Developed by Subcommittee: D04.23

    Book of Standards Volume: 04.03

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    Significance and Use

    4.1 This guide provides information to assist engineers with the design requirements and construction guidelines for paving an open-graded friction course (OGFC) surface layer. An OGFC is primarily used to improve the skid resistance and wear resistance of an asphalt pavement by providing an escape route for surface water beneath a moving wheel load. The asphalt mixture is typically produced with a low amount of fine aggregate particles and high air void content to provide a passageway of interconnected voids for moisture to drain away from the travelway. The film thickness of the asphalt and overall asphalt content are important for better stripping resistance and durability and aging properties.

    Note 1: OGFCs may also be placed to reduce the tire-pavement interface noise and may also be placed to reduce the occurrence and severity of reflective cracking.

    1. Scope

    1.1 This guide covers the construction of open-graded friction course (OGFC) plant asphalt mixtures. End-use specifications should be adopted to conform to job and user requirements. Where applicable, Specification D3666 should be applied as a minimum for agencies testing and inspecting road and paving materials.

    1.2 Asphalt OGFCs are placed as the final wearing course for highways and airfields.

    1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 nonconformance with the standard.

    1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    C29/C29M Test Method for Bulk Density (Unit Weight) and Voids in Aggregate

    C88/C88M Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate

    C127 Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate

    C128 Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate

    C131/C131M Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

    C136/C136M Test Method for Sieve Analysis of Fine and Coarse Aggregates

    C1252 Test Methods for Uncompacted Void Content of Fine Aggregate (as Influenced by Particle Shape, Surface Texture, and Grading)

    D75/D75M Practice for Sampling Aggregates

    D140/D140M Practice for Sampling Asphalt Materials

    D448 Classification for Sizes of Aggregate for Road and Bridge Construction

    D946/D946M Specification for Penetration-Graded Asphalt Binder for Use in Pavement Construction

    D1461 Test Method for Moisture or Volatile Distillates in Asphalt Mixtures

    D2419 Test Method for Sand Equivalent Value of Soils and Fine Aggregate

    D2995 Practice for Estimating Application Rate and Residual Application Rate of Bituminous Distributors

    D3381/D3381M Specification for Viscosity-Graded Asphalt Binder for Use in Pavement Construction

    D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials

    D4791 Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate

    D5821 Test Method for Determining the Percentage of Fractured Particles in Coarse Aggregate

    D6114/D6114M Specification for Asphalt-Rubber Binder

    D6307 Test Method for Asphalt Content of Asphalt Mixture by Ignition Method

    D6373 Specification for Performance-Graded Asphalt Binder

    D6390 Test Method for Determination of Draindown Characteristics in Uncompacted Asphalt Mixtures

    D7064/D7064M Practice for Open-Graded Friction Course (OGFC) Mix Design

    ICS Code

    ICS Number Code 93.080.20 (Road construction materials)

    UNSPSC Code

    UNSPSC Code 30121500(Bituminous derivatives)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D6932_D6932M-21

    Citation Format

    ASTM D6932 / D6932M-21, Standard Guide for Materials and Construction of Open-Graded Friction Course Plant Asphalt Mixtures, ASTM International, West Conshohocken, PA, 2021, www.astm.org

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