@article{oai:kitami-it.repo.nii.ac.jp:02000397,
 author = {Jihoon Kim and Ryoma Kitagaki and Heesup Choi},
 issue = {19},
 journal = {Materials},
 month = {Sep},
 note = {Various methods for repairing and modifying concrete surfaces have been proposed and
applied to improve the durability of existing concrete structures. Surface modification through
forced carbonation is a method of densification that forms calcium carbonate in the pores on the
surface of concrete to improve its durability. In this study, to evaluate the applicability of this surface
modification method to existing buildings, a series of experiments was conducted in which mortar
specimens were repeatedly immersed in a carbon dioxide nanobubble aqueous solution. By evaluating
the weight change and absorption rate, it was determined that the higher the water/cement ratio of
the mortar specimen, the higher the pore filling effect owing to immersion in the carbon dioxide
nanobubble aqueous solution. In addition, the effect of clogged pores generated by the precipitation
of calcium carbonate was confirmed, and it was found that the higher the water/cement ratio of the
mortar specimen, the higher the pore filling effect due to clogging. We believe that our findings
contribute to the development of research and construction practices associated with concrete repair
and restoration},
 title = {Pore Filling Effect of Forced Carbonation Reactions Using Carbon Dioxide Nanobubbles},
 volume = {13},
 year = {2020}
}