Research contrasts resistivity test vs. w/c ratio to gauge permeability

A new Ready Mixed Concrete Research & Education Foundation report reflecting work at the National Ready Mixed Concrete Association’s College Park, Md. laboratory addresses the lack of a consistent and cost-effective concrete permeability test method. “Reliability of Resistivity Tests of Concrete” authors evaluate mix design and specimen preparation factors that impact resistivity measurement; their conclusions can be incorporated in standards…

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