@article{oai:muroran-it.repo.nii.ac.jp:00009552,
 author = {CHOI, Heesup and 崔, 希燮 and INOUE, Masumi and 井上, 真澄 and SENGOKU, Risa and CHANG,  Young-Cheol and 張, 傛喆},
 issue = {10},
 journal = {Advanced Materials Letters},
 month = {Oct},
 note = {application/PDF, In this study, it is possible to disperse effectively cracked using synthetic fiber, an examination of the most suitable self-healing conditions was performed on the above crack width 0.1mm. As a result, effective crack dispersion using polyvinyl 
alcohol(PVA) fibers with polar OH-groups, as well as improved self-healing for cracks that are larger than 0.1 mm in width, posing concerns of CO2 gas and Cl
-penetration, were observed. Also, CO3 2-reacts with Ca2+ in the concrete crack, resulting in the precipitation of a carbonate compound, CaCO3. Based on this, it is deemed possible for the recovery of effective water tightness and strength recovery through effective freezing-thawing resistance to be made from cracks that are larger than 0.1mm in width. In addition, it was determined that, as for the most suitable self-healing conditions in the inside and surface of the cracks, calcium hydroxide (Ca(OH)2) solution with CO2 micro-bubble was more effective in promoting the self-healing capability than water with CO2 
micro-bubble. Copyright © 2017 VBRI Press.},
 pages = {993--998},
 title = {Strength recovery of concrete exposed to freezing-thawing by self-healing of cementitious materials using synthetic fiber},
 volume = {8},
 year = {2017},
 yomi = {イノウエ, マスミ and チャン, ヨンチョル}
}