Recovery of Chloride Penetration Resistance of Cement-Based Composites Due to Self-Healing of Cracks

Kyung Suk Yoo, Seung Yup Jang, Kwang-Myong Lee
2021 Materials  
This study proposed a method of applying coating on uncracked surfaces of test specimens in the electrical migration–diffusion test for the evaluation of the chloride penetration resistance of cracked cement-based composites. It was shown that, by applying the proposed method, the recovery of the chloride penetration resistance from self-healing of cracks can be evaluated more accurately because the application of surface coating reduces the test time and the error introduced by
more » ... by over-simplification. Based on observations of the self-healing-induced recovery of chloride penetration resistance, a phenomenological model for predicting the progress of crack self-healing in cement-based composites was suggested. This model is expected to evaluate the chloride penetration resistance more accurately in actual concrete structures with cracks.
doi:10.3390/ma14102501 pmid:34066076 fatcat:evtzcnu5mfggvgczvfup57ok6u