Volume 9, Issue 2 (January 1987)

    An Experiment to Investigate Chloride Intrusion on Construction Joints in Concrete

    CODEN: CCAOAD

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    Abstract

    A field experiment was conducted to investigate the extent of chloride intrusion along the construction joint between later-placed, cement-based grout and concrete in instrumented precast concrete breakwater elements (dolosse). Experimental blocks were cast, grouted, and submerged in seawater. Upon retrieval, the construction joint between the grout and the concrete was evaluated for chloride intrusion from seawater using X-ray diffraction (XRD) and energy dispersive X-ray analysis (EDX) of scanning electron microscope (SEM) samples. No detectable intrusion occurred, indicating that the planned instrumentation of dolosse in a field experiment should be secure from significant seawater intrusion.


    Author Information:

    Buck, AD
    Geologist, U.S. Army Engineer Waterways Experiment Station, Structures Laboratory, Vicksburg, MS

    Denes, T
    Civil engineer, U.S. Army Engineer District, San Francisco, CA


    Stock #: CCA10072J

    ISSN: 0149-6123

    DOI: 10.1520/CCA10072J

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    Author
    Title An Experiment to Investigate Chloride Intrusion on Construction Joints in Concrete
    Symposium , 0000-00-00
    Committee C09