ASTM C1152 / C1152M - 04(2012)e1

    Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete

    Active Standard ASTM C1152 / C1152M | Developed by Subcommittee: C09.69

    Book of Standards Volume: 04.02


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    Significance and Use

    3.1 The amount of acid-soluble chloride in most hydraulic-cement systems is equal to the total amount of chloride in the system. However, some organic substances that may be introduced into mortar or concrete contain chloride that is initially acid-insoluble that can eventually ionize and thus become acid-soluble or water-soluble after a period of exposure in the very alkaline cement system.

    3.2 Sulfides are known to interfere with the determination of chloride content. Blast-furnace slag aggregates and cements contain sulfide sulfur in concentrations that can cause such interference and produce erroneously high test results. Treatment with hydrogen peroxide, as discussed in Test Methods C114, is used to eliminate such interference.

    3.3 There are aggregates that contain chloride that is not available for corrosion. Such chloride will be detected by the use of this method.4

    1. Scope

    1.1 This test method2 provides procedures for the sampling and analysis of hydraulic-cement mortar or concrete for chloride that is acid soluble under the conditions of test. In most cases, acid-soluble chloride is equivalent to total chloride.

    1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Some values have only SI units because the inch-pound equivalents are not used in practice.

    Note 1Sieve size is identified by its standard designation in Specification E11. The alternative designation in parentheses is for information only and does not represent a different standard sieve size.

    1.3 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes shall not be considered as requirements of this 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 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

    C42/C42M Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete

    C114 Test Methods for Chemical Analysis of Hydraulic Cement

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

    C702/C702M Practice for Reducing Samples of Aggregate to Testing Size

    C823/C823M Practice for Examination and Sampling of Hardened Concrete in Constructions

    C1084 Test Method for Portland-Cement Content of Hardened Hydraulic-Cement Concrete

    D1193 Specification for Reagent Water

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves


    ICS Code

    ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar); 91.100.30 (Concrete and concrete products)

    UNSPSC Code

    UNSPSC Code 30111504(Mortars); 30111500(Concrete and mortars)


    DOI: 10.1520/C1152_C1152M-04R12E01

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