Abstract
The durability and permeability of concrete could be investigated by different test methods that evaluate various transport mechanisms of water and ions in cement-based materials. This research has investigated the suitability of conventional permeability and durability assessment test methods for evaluating the properties of concrete mixtures containing calcined clays and limestone calcined clay cements (LC3). The water absorption, capillary water sorptivity, water penetration, surface electrical resistivity, rapid chloride ions migration coefficient, chloride ions’ penetration profile, and diffusion coefficient were examined in concrete mixtures. A rapid approximation method has also been proposed to estimate the kaolinite content of clays based on the chemical composition data. According to the results, water absorption test based on BS 1881-122 could not accurately specify the permeability properties of binary and LC3 blends. Further, the initial rate of capillary water absorption had an appropriate correlation with the results of water penetration and electrical resistivity test methods.
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