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    Effects of Deicers on Concrete Deterioration

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    SLR073.pdf (194.2Kb)
    Issue Date
    2007-12
    Author
    Darwin, David
    Browning, JoAnn
    Gong, Lien
    Hughes, Sean R.
    Publisher
    University of Kansas Center for Research, Inc.
    Type
    Technical Report
    Is part of series
    SL Report;07-3
    Published Version
    https://iri.ku.edu/reports
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    Abstract
    Concrete specimens were exposed to weekly cycles of wetting and drying in distilled water and in solutions of sodium chloride, calcium chloride, magnesium chloride, and calcium magnesium acetate with either a 6.04 molal ion concentration, equivalent in ion concentration to a 15% solution of NaCl, or a 1.06 molal ion concentration, equivalent in ion concentration to a 3% solution of NaCl, for periods of up to 95 weeks. Specimens were also exposed to air only. The effects of exposure were evaluated based on changes in the dynamic modulus of elasticity and the physical appearance of the specimens at the conclusion of the tests. Concretes exposed to distilled water and air show, respectively, an increase and a decrease in dynamic modulus of elasticity, due principally to changes in moisture content; overall, no negative impact on the concrete properties of these specimens is observed. At lower concentrations, sodium chloride and calcium chloride have a relatively small negative impact on the properties of concrete. At high concentrations, sodium chloride has a greater but still relatively small negative effect. At low concentrations, magnesium chloride and calcium magnesium acetate can cause measurable damage to concrete. At high concentrations, calcium chloride, magnesium chloride, and calcium magnesium acetate cause significant changes in concrete that result in loss of material and a reduction in stiffness and strength.
    URI
    http://hdl.handle.net/1808/20028
    Collections
    • Infrastructure Research Institute Scholarly Works [327]
    Citation
    Darwin, D., Browning, J., Gong, L., Hughes, S.R., "Effects of Deicers on Concrete Deterioration", SL Report 07-3, University of Kansas Center for Research, Inc., Lawrence, Kansas, December 2007, 28 pgs.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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