ASTM C73-99a

    Standard Specification for Calcium Silicate Brick (Sand-Lime Brick)


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    1. Scope

    1.1 This specification covers brick made principally from sand and lime and intended for use in brick masonry. Two grades of brick are covered:

    1.1.1 Grade SW -Brick intended for use where exposed to temperature below freezing in the presence of moisture.

    Note 1-As a typical example, brick used for foundation courses and parapets in the northeastern quarter of the United States should conform to Grade SW.

    1.1.2 Grade MW -Brick intended for use where exposed to temperature below freezing but unlikely to be saturated with water.

    Note 2-As a typical example, brick exposed in the face of the wall other than parapet or foundations, or brick intended for structures located in regions of the United States characterized by less severe frost action or by drier climate than is found in the northeastern quarter of the United States should conform to Grade MW.

    1.1.3 When the term brick is used in this specification, it should be understood to mean brick or solid masonry units.

    1.2 If brick having a particular color, texture, finish, or uniformity is desired, these features should be specified separately by the purchaser.

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

    1.4 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.


    ICS Code

    ICS Number Code 91.100.15 (Mineral materials and products)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/C0073-99A

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM C73-99a, Standard Specification for Calcium Silicate Brick (Sand-Lime Brick), ASTM International, West Conshohocken, PA, 1999, www.astm.org

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