Journal
CEMENT & CONCRETE COMPOSITES
Volume 107, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2019.103487
Keywords
Cement; Capillary absorption; X-ray computed tomography (XCT); Water front; Moisture profile
Funding
- National Natural Science Foundation of China, China [51878411, U1801254, 51727813]
- Project of Department of Education of Guangdong Province, China [2018KZDXM060]
- Basic Research Project of Shenzhen Knowledge Innovation Plan, China [JCYJ20170818100641730]
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Moisture is one of the major deterioration factors of concrete. In this study, the capillary absorption process, which is one of the major transportation mechanism in cement paste, is non-destructively investigated by using X-ray computed tomography (XCT). A novel image processing procedure is proposed to correct the XCT image artifacts and calibrate the results of different measurements. The proposed image processing procedure allows for 3D visualization of the absorption process and additional information can be obtained, including the height of the water absorption front and the water content gradient.
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