A Damage Model for Sulfate Attack of Cement Mortars

    Volume 11, Issue 2 (January 1989)

    ISSN: 0149-6123

    CODEN: CCAOAD

    Page Count: 8


    Ouyang, C
    Research associate, NSF Center for Science and Technology of Advanced Cement Based Materials, Northwestern University, Evanston, IL

    Abstract

    A model for cement mortars under sulfate attack is proposed based on a progressive fracturing concept. An initial damage of mortar is defined as a function of the Powers' gel space ratio. The sulfate attack evidenced by the expansion of the matrix is incorporated as additional nucleated voids which increase the initial damage existing before the loading. The compressive properties of cement mortars under sulfate attack are predicted well by this model. Expansion limits for sulfate attack computed by this model agree well with those proposed by Mather and Patzias.


    Paper ID: CCA10109J

    DOI: 10.1520/CCA10109J

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    Author
    Title A Damage Model for Sulfate Attack of Cement Mortars
    Symposium , 0000-00-00
    Committee C01