ASTM C641 - 09

    Standard Test Method for Iron Staining Materials in Lightweight Concrete Aggregates

    Active Standard ASTM C641 | Developed by Subcommittee: C09.21

    Book of Standards Volume: 04.02


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    Significance and Use

    This test method evaluates the potential degree of staining attributable to the presence of iron compounds in a lightweight aggregate sample primarily by means of a visual classification method. Such compounds may or may not produce stains on the surface of the concrete in which the aggregate is incorporated.

    1. Scope

    1.1 This test method covers the testing of lightweight concrete aggregates to evaluate the potential degree of staining from iron compounds.

    1.2 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are provided for information only.

    1.3 This standard does not purport to address the safety problems 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

    C330 Specification for Lightweight Aggregates for Structural Concrete

    C331 Specification for Lightweight Aggregates for Concrete Masonry Units

    C702 Practice for Reducing Samples of Aggregate to Testing Size

    D75 Practice for Sampling Aggregates

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

    E832 Specification for Laboratory Filter Papers


    ICS Code

    ICS Number Code 91.100.30 (Concrete and concrete products)

    UNSPSC Code

    UNSPSC Code 30111800(Aggregates)


    DOI: 10.1520/C0641-09

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