Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Young Cheol, Choi"'
Autor:
Young-Cheol Choi
Publikováno v:
Results in Engineering, Vol 24, Iss , Pp 103187- (2024)
This study was aimed at developing novel functional construction materials with NOx removal capabilities using TiO2 powder. To this end, the effects of the chemical composition of TiO2 powder on the hydration process and the mechanical properties of
Externí odkaz:
https://doaj.org/article/606c5894779d4740bb92ead9a2171c52
Autor:
Jaewan Lee, Hongjun Yang, Changyoung Park, Seong-Hyo Park, Eunji Jang, Hobeom Kwack, Chang Hoon Lee, Chang-ik Song, Young Cheol Choi, Sehui Han, Honglak Lee
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract During the continuous charge and discharge process in lithium-sulfur batteries, one of the next-generation batteries, polysulfides are generated in the battery’s electrolyte, and impact its performance in terms of power and capacity by inv
Externí odkaz:
https://doaj.org/article/ce5cdee094f54dd6b70e68d4fc0260e9
Autor:
Young Cheol Choi
Publikováno v:
Case Studies in Construction Materials, Vol 17, Iss , Pp e01690- (2022)
This study investigated the effect of natural fibers on the hydration reaction of cement, in addition to the applicability of such fibers as internal curing materials. More specifically, cement composites were prepared by adding abaca, hemp, and jute
Externí odkaz:
https://doaj.org/article/cfa6bf37307b4176b33573d9d753308d
Autor:
Han Byeol Chang, Young Cheol Choi
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 13635-13645 (2020)
Hydrogen sulfide (H2S) gas is generated from sewage and wastewater, which corrodes concrete sewer pipes and shortens their service life. Therefore, concrete sewer pipes that are vulnerable to corrosion damage caused by sewage and wastewater microorga
Externí odkaz:
https://doaj.org/article/a08168b8b8cb4dcd82e7ebe67f97ed65
Autor:
Young Cheol Choi, Byoungsun Park
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 4, Pp 7655-7668 (2020)
In this study, the microstructures of fly-ash-based geopolymer composites exposed to high temperatures were investigated by surface fractal dimension analysis. Geopolymer pastes with various Na2O contents were exposed to high temperatures. From the r
Externí odkaz:
https://doaj.org/article/defaef1c5db24522b5f25e717a0a8ef3
Autor:
Byoungsun, Park, Young, Cheol Choi ⁎
Publikováno v:
In Journal of Materials Research and Technology November-December 2019 8(6):6058-6073
Autor:
Byoungsun Park, Young Cheol Choi
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 13, Iss 1, Pp 1-14 (2019)
Abstract Crack formation is an inherent property of concrete structures; however, these materials also have the ability to heal cracks autogenously. External water penetrates the inside of concrete through the cracks, and unreacted cement particles p
Externí odkaz:
https://doaj.org/article/2901617109a84dd6bb81d7a6f5d0d530
Autor:
Young Cheol Choi, Byoungsun Park
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 4, Pp 3443-3452 (2019)
In this study, the autogenous healing characteristics of cementitious materials with ground granulated blast furnace slag (GGBFS) and crystalline admixtures were investigated. The main variables were the replacement of cement by GGBFS (15–50%) and
Externí odkaz:
https://doaj.org/article/06a641d00da245b389c18adf4c507b32
Autor:
So-Yeon Kim, Rin Jang, Jaemin Hyun, Soeun Kim, Young Cheol Choi, Seong-Hyo Park, Yeu Young Youn
Publikováno v:
Journal of the American Society for Mass Spectrometry. 33:1653-1658
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74f62ffc17e698efaebaca01b87bc257
https://doi.org/10.1021/jasms.2c00113
https://doi.org/10.1021/jasms.2c00113
Investigating the Effect of CNTs on Early Age Hydration and Autogenous Shrinkage of Cement Composite
Autor:
Byoungsun Park, Young Cheol Choi
Publikováno v:
Applied Sciences, Vol 11, Iss 12, p 5545 (2021)
In this study, the effect of carbon nanotubes (CNTs) on the physical properties of cement composites was investigated. The mechanism of the change of autogenous shrinkage of CNTs-reinforced cement composites was also examined. In the experiments, ord
Externí odkaz:
https://doaj.org/article/5b3eacb59a3a4f22be872918ab56d2a5