Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 류두열 | - |
dc.date.accessioned | 2022-11-15T07:51:09Z | - |
dc.date.available | 2022-11-15T07:51:09Z | - |
dc.date.issued | 2022-10 | - |
dc.identifier.citation | CEMENT & CONCRETE COMPOSITES, v. 133, article no. 104692, Page. 1-16 | en_US |
dc.identifier.issn | 0958-9465;1873-393X | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0958946522002852?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/176901 | - |
dc.description.abstract | The feasibility of using steel fibers engineered through a hybrid treatment of ethylenediaminetetraacetic acid (EDTA)-electrolyte solution and nano-SiO2 coating as reinforcements for ultra-high-performance concrete (UHPC) was investigated by considering fiber corrosion effect. For this purpose, two different corrosion degrees of 2% and 5% were intentionally induced, and the interfacial bonding and tensile properties of UHPCs reinforced with plain and surface-reformed (or engineered) steel fibers were evaluated according to the degree of corrosion. The test results indicated that the EDTA-electrolyte solution treatment and nano-SiO2 coating are effective for improving the interfacial bonding of straight steel fibers in UHPC, leading to an 86% increase in the equivalent bond strength (24.7 MPa). The treatments also improved the tensile performance of ultra-high-performance fiber-reinforced concrete (UHPFRC), and more than twice higher energy absorption capacity could be ach-ieved using the hybrid treatment method. In the case of plain steel fibers, the pullout resistance and tensile performance of UHPFRC both increased with fiber corrosion of up to 5%. However, UHPFRCs with surface -reformed steel fibers exhibited performance deterioration beyond a certain degree of corrosion. A longer im-mersion duration in the EDTA-electrolyte solution caused a higher susceptibility to steel fiber corrosion, regardless of the nano-SiO2 coating. Thus, fiber corrosion in UHPFRC must be prevented more strictly when surface-reformed steel fibers are used. | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea grant funded by the Korea government (MSIT) (No. 2021R1A2C4001503) . | en_US |
dc.language | en | en_US |
dc.publisher | ELSEVIER SCI LTD | en_US |
dc.subject | Ultra-high-performance concrete | en_US |
dc.subject | Straight steel fiber | en_US |
dc.subject | Chelate effect | en_US |
dc.subject | Nano-SiO2 coating | en_US |
dc.subject | Corrosion | en_US |
dc.subject | Mechanical properties | en_US |
dc.title | Use of engineered steel fibers as reinforcements in ultra-high-performance concrete considering corrosion effect | en_US |
dc.type | Article | en_US |
dc.relation.volume | 133 | - |
dc.identifier.doi | 10.1016/j.cemconcomp.2022.104692 | en_US |
dc.relation.page | 1-16 | - |
dc.relation.journal | CEMENT & CONCRETE COMPOSITES | - |
dc.contributor.googleauthor | Yoo, Doo-Yeol | - |
dc.contributor.googleauthor | Jang, Yun Sik | - |
dc.contributor.googleauthor | Oh, Taekgeun | - |
dc.contributor.googleauthor | Banthia, Nemkumar | - |
dc.sector.campus | S | - |
dc.sector.daehak | 공과대학 | - |
dc.sector.department | 건축공학부 | - |
dc.identifier.pid | dyyoo | - |
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