New Test Method for Standard Test Method for Water Content of Freshly Mixed Concrete Using Microwave Oven Drying

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    Developed by Subcommittee: C09.60 | Committee C09 | Contact Staff Manager


    1. Scope

    1.1 This test method covers the measurement of total water content of fresh concrete. It consists of drying a test sample of fresh concrete, using a relatively high-power microwave oven, within a short period of time. The difference in mass between the fresh and dry concrete test sample will be the approximate water content of that test sample. The resulting water content determined by this standard will be effected by the absorption of the aggregates. Water content per unit volume of concrete can be determined by knowing the fresh density (unit weight) of that concrete. 1.2 This test method is applicable to both laboratory and field testing. 1.3 The values stated in either inch-pound or SI units shall be regarded separately as standard. The SI units are shown in brackets. The values stated might not be exact equivalents; therefore, each system must be used independently of the other. 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.

    architects, engineers, testing agencies


    microwave; water content

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

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Lawrence Sutter

    Draft Under Development