ASTM D6998 - 19

    Standard Practice for Evaluating Aggregate Coating using Emulsified Asphalts

    Active Standard ASTM D6998 | Developed by Subcommittee: D04.42

    Book of Standards Volume: 04.03


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    Significance and Use

    4.1 The intent of this practice is to ensure that a given mixing grade emulsified asphalt is stable enough and otherwise possesses the ability to mix with a reference stone for the prescribed time, and coat it uniformly and thoroughly.

    Note 2: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.

    1. Scope

    1.1 This practice covers those emulsified asphalts intended for use by mixing with aggregate. It is not applicable to rapid-setting types or diluted materials used for tack coats, priming, or mulch treatments.

    1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

    1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.5 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

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

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves


    ICS Code

    ICS Number Code 93.080.20 (Road construction materials)

    UNSPSC Code

    UNSPSC Code 30121601(Asphalt)


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

    DOI: 10.1520/D6998-19

    Citation Format

    ASTM D6998-19, Standard Practice for Evaluating Aggregate Coating using Emulsified Asphalts, ASTM International, West Conshohocken, PA, 2019, www.astm.org

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