ASTM D6999 - 12

    Standard Practice for Miscibility of Emulsified Asphalts

    Active Standard ASTM D6999 | Developed by Subcommittee: D04.42

    Book of Standards Volume: 04.03


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    Significance and Use

    3.1 It is sometimes desirable to dilute an emulsified asphalt in the field with water. This practice is designed to ascertain if this may be done without irreversibly separating the water and asphalt (breaking) in the emulsified asphalt.

    Note 2Water supplies available in some areas contain high levels of dissolved salts and other minerals which coalesce (break) emulsified asphalts to a greater degree than distilled or deionized water. It is recommended that the user evaluate potential local job site water sources such as tap water using this practice before attempting a field dilution.

    1. Scope

    1.1 This practice covers the suitability of all medium and slow-setting emulsified asphalts to be diluted with water.. It is not applicable to the rapid-setting types.

    1.2 This practice 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.

    ASTM Standards

    E1 Specification for ASTM Liquid-in-Glass Thermometers


    ICS Code

    ICS Number Code 93.080.20 (Road construction materials)

    UNSPSC Code

    UNSPSC Code 30121601(Asphalt)


    Referencing This Standard

    DOI: 10.1520/D6999-12

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D6999-12, Standard Practice for Miscibility of Emulsified Asphalts, ASTM International, West Conshohocken, PA, 2012, www.astm.org

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