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Mechanical properties of ultra-high-performance fiber-reinforced concrete: A review

Title
Mechanical properties of ultra-high-performance fiber-reinforced concrete: A review
Author
류두열
Keywords
Ultra-high-performance fiber-reinforced concrete; Mechanical property; Curing condition; Steel fiber property; Size effect; Strain-rate
Issue Date
2016-10
Publisher
ELSEVIER SCI LTD
Citation
CEMENT & CONCRETE COMPOSITES, v. 73, Page. 267-280
Abstract
A comprehensive investigation into the mechanical properties of ultra-high-performance fiber-reinforced concrete (UHPFRC), considering various influential factors, is imperative in order to obtain fundamental information for its practical utilization. Therefore, this paper reviewed the early-age strength (or setting) development and mechanical properties of hardened UHPFRC. In connection with the latter, the effects of the curing conditions, coarse aggregate, mineral admixtures, fiber properties, specimen size, and strain-rate on the mechanical performance of UHPFRC were specifically investigated. It was obvious that (1) heat treatment accelerates the hydration process, leading to higher strength; (2) a portion of the silica fume can be replaced by fly ash, slag, and rice husk ash in mechanical perspective; (3) the use of deformed (hooked and twisted) or long straight steel fibers improves the mechanical properties at a static rate; and (4) high rate loading provides a noticeable increase in the mechanical properties. Alternatively, there are some disagreements between the results from various 'size effect' tests and the effectiveness of using twisted steel fibers at static and high rate loadings. Further research to reduce the production cost of UHPFRC is also addressed in an attempt to make its widespread use more practical. (C) 2016 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S095894651630422X?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/100704
ISSN
0958-9465; 1873-393X
DOI
10.1016/j.cemconcomp.2016.08.001
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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