Volume 24, Issue 2 (March 1996)

    Evaluation of Test Methods and Environmental Conditions to Promote Efflorescence Formation Under Laboratory Conditions

    CODEN: JTEOAD

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    Abstract

    Several test procedures that induce formation of efflorescence on the surface of porous block specimens were investigated. This paper describes the tests that were investigated and the environmental conditions under which these tests were performed. A wicking procedure, run at an elevated temperature and low relative humidity, rapidly produces efflorescence on the surface of test samples. The rate of efflorescence formation was fastest at an elevated temperature and lower relative humidity and slowest at a cool temperature and high relative humidity. The wicking test can be used to rapidly determine the effect of changing mix proportion and the effectiveness of sealers and anti-efflorescence additives on the efflorescence potential of porous masonry units.


    Author Information:

    Vickers, T
    Senior researcher and technical director, Research and Development, Master Builders, Inc., Cleveland, OH

    Moukwa, M
    Senior researcher and technical director, Research and Development, Master Builders, Inc., Cleveland, OH


    Stock #: JTE12678J

    ISSN: 0090-3973

    DOI: 10.1520/JTE12678J

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    Author
    Title Evaluation of Test Methods and Environmental Conditions to Promote Efflorescence Formation Under Laboratory Conditions
    Symposium , 0000-00-00
    Committee C12