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Abstract ▼ AI-Helper

Over the past few decades, considerable numbers of studies on the durability of concrete have been carried out extensively. The majority of these researches have been performed on sound uncracked concrete, although most of in-situ concrete structures have more or less micro-cracks. It is only recent...

Over the past few decades, considerable numbers of studies on the durability of concrete have been carried out extensively. The majority of these researches have been performed on sound uncracked concrete, although most of in-situ concrete structures have more or less micro-cracks. It is only recent approach that the attention has shifted towards the influence of cracks and crack width on the penetration of chloride into concrete. The penetration of chlorides into concrete through the cracks can make a significant harmful effect on reinforcement corrosion. Author of this study examined the effect of cracks on chloride penetration by short tem experiment. However, it is necessary to accomplish the effect by long term experiment to get reliable goal. In this study, the long term experiment was carried out and the experimental result was compared with short term experiment. Crack tends to decrease with elapsed time because of self-healing. Especially this trend was obvious in concrete sample with wide crack with.