ASTM E518 / E518M - 10

    Standard Test Methods for Flexural Bond Strength of Masonry

    Active Standard ASTM E518 / E518M | Developed by Subcommittee: C15.04

    Book of Standards Volume: 04.05


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    Significance and Use

    These test methods are intended to provide simplified and economical means for gathering comparative research data on the flexural bond strength developed with different types of masonry units and mortar or for the purpose of checking job quality control (materials and workmanship).

    Note 1—These test methods are not intended for use in establishing design stresses. For this purpose, Methods E72 should be used.

    1. Scope

    1.1 These test methods cover determination of the flexural bond strength of unreinforced masonry assemblages. Two procedures are provided:

    1.1.1 Test Method ASimply supported beam with third-point loading.

    1.1.2 Test Method BSimply supported beam with uniform loading.

    1.2 These test methods cover the application of the tests using either inch-pound or SI units. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. 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.

    1.3 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

    C67 Test Methods for Sampling and Testing Brick and Structural Clay Tile

    C78 Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)

    C140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units

    C270 Specification for Mortar for Unit Masonry

    C778 Specification for Sand

    E4 Practices for Force Verification of Testing Machines

    E72 Test Methods of Conducting Strength Tests of Panels for Building Construction

    E575 Practice for Reporting Data from Structural Tests of Building Constructions, Elements, Connections, and Assemblies


    ICS Code

    ICS Number Code 91.060.10 (Walls. Partitions. Facades)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/E0518_E0518M-10

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM E518 / E518M-10, Standard Test Methods for Flexural Bond Strength of Masonry, ASTM International, West Conshohocken, PA, 2010, www.astm.org

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