Abstract
Water penetration is important to the durability deterioration of concrete structures. This study provides X-ray computed tomography (XCT) to nondestructively trace the capillary absorption process in hardened cement and investigate the influence of water-cement (w/c) ratio. With our proposed data analysis procedure, the changes of water absorption front position and the water content profile during the absorption process can be obtained. The results show that the w/c ratio not only influences the capillary coefficient and sorptivity, but also changes the absorbed water distribution. The obtained results are verified and further used to investigate the influence of the w/c ratio on the capillary absorption features.
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