Abstract

The correlation between electric resistance and water penetration depth in concrete is presented and a theoretical model for the nondestructive monitoring of the water penetration depth is established. The model is applied to study the variation of the water penetration depth of alkali slag concrete using the measured electric resistance value under constant water pressure. The results of permeability performance tests show that the penetration model enables accurate calculation of both depth and rate of water penetration. This provides effective nondestructive monitoring of the water penetration depth of concrete and an effective index for evaluating concrete impermeability

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