Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 최창식 | - |
dc.date.accessioned | 2022-11-21T04:48:23Z | - |
dc.date.available | 2022-11-21T04:48:23Z | - |
dc.date.issued | 2022-10 | - |
dc.identifier.citation | CONSTRUCTION AND BUILDING MATERIALS, v. 352, article no. 129017, Page. 1-18 | en_US |
dc.identifier.issn | 0950-0618;1879-0526 | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0950061822026721?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/177067 | - |
dc.description.abstract | This study investigates the synergistic strengthening mechanism of graphene oxide (GO), functionalized carbon nanotubes (f-CNT), and nano-silica (NS) triple hybrid-reinforced Portland cement composite. GO was selected as the variable owing to the synergistic effect of GO with both f-CNTs and NS upon dispersion by forming bonds with both nanomaterials. At a low GO dosage (similar to 0.03 wt% of cement), the bond between GO and NS deteriorated the dispersion in Ca2+-rich solution due to the overly attached NS on the GO surface. The highest GO fraction (0.05 wt%) also led to poor dispersion as the excess GO was agglomerated by Ca2+ ions. However, an optimal amount of GO (0.04 wt%) significantly improved the dispersion quality. The enhanced dispersion of the triple hybrid positively influenced the hydration degree and mechanical performance of the cement paste (133 % and 156 % for compressive and tensile splitting strength compared to OPC) and the pozzolanic reactivity of NS. | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (NRF- 2020R1A4A1019074) . | en_US |
dc.language | en | en_US |
dc.publisher | ELSEVIER SCI LTD | en_US |
dc.subject | Graphene oxide | en_US |
dc.subject | Functionalized carbon nanotube | en_US |
dc.subject | Nano-silica | en_US |
dc.subject | Synergistic effect | en_US |
dc.subject | Dispersion | en_US |
dc.subject | Hydration | en_US |
dc.title | Synergistic strengthening mechanism of Portland cement paste reinforced by a triple hybrid of graphene oxide, functionalized carbon nanotube, and nano-silica | en_US |
dc.type | Article | en_US |
dc.relation.volume | 352 | - |
dc.identifier.doi | 10.1016/j.conbuildmat.2022.129017 | en_US |
dc.relation.page | 1-18 | - |
dc.relation.journal | CONSTRUCTION AND BUILDING MATERIALS | - |
dc.contributor.googleauthor | Kim, Gyeongryul | - |
dc.contributor.googleauthor | Suh, Hyeongwon | - |
dc.contributor.googleauthor | Cho, Seongmin | - |
dc.contributor.googleauthor | Im, Sumin | - |
dc.contributor.googleauthor | Nezhad, Erfan Zal | - |
dc.contributor.googleauthor | Seok, Seungwook | - |
dc.contributor.googleauthor | Choi, Changsik | - |
dc.contributor.googleauthor | Bae, Sungchul | - |
dc.sector.campus | S | - |
dc.sector.daehak | 공과대학 | - |
dc.sector.department | 건축공학부 | - |
dc.identifier.pid | ccs5530 | - |
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