Define sulphate attack - underwater inspection of bridge, Civil Engineering

Define Sulphate Attack - underwater inspection of bridge?

Cement contains a proportion of tricalcium aluminates, which takes part in the hydration process. These can react with magnesium sulphate, which is present in concentrations of about 0.5% in seawater. The reaction is expansive, but the presence of chlorides inhibits the degree of expansion. The net result is softening and disruption of the concrete in the form of crumbling.

Posted Date: 6/12/2013 7:07:27 AM | Location : United States

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