ASTM WK24567

    New Specification for Soluble Silicate Densifiers, Chemical Hardening Treatments, and Waterproofing Treatments for Hardened Concrete

    (What is a Work Item?)

    Developed by Subcommittee: C09.22 | Committee C09 | Contact Staff Manager


    1. Scope

    1. Scope 1.1 This specification covers solutions of alkali metal silicates or alkali methyl-siliconates or both that are applied to concrete that has been cured for a minimum of seven days before application. No curing properties are implied for materials conforming to this specification. Soluble silicates may be detrimental to the curing of concrete and should not be used on fresh concrete surfaces. These materials are penetrating concrete surface treatments and are not membrane-forming curing compounds as specified by Specifications C309 or C1315. 1.2 Performance is measured by comparison of silicate-treated test specimens to untreated control specimens for the enhancement of concrete properties including: abrasion resistance, hardness, water permeability/absorption, static or dynamic coefficient of friction or both, household chemical resistance, and, optionally, where floor covering, compatibility and scaling resistance of concrete surfaces exposed to deicing chemical. 1.3 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 non-conformance with the standard. 1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes shall not be considered as requirements of the standard. 1.5 The following precautionary caveat pertains only to the test methods portion. 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.

    No standard currently exists relative to testing/qualifying these products. This will be used by product manufacturers and engineering firms in specifying products.


    Sodium Silicate; Alkali Silicate; Chemical Hardeners; Densifiers; :Potassium Silicate; Lithium Silicates; Waterproofing Treatments

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
    Back to Top
    Work Item Status

    Date Initiated:

    Technical Contact:
    Stanley Stratton

    Draft Under Development