129 0

Development of cost effective ultra-high-performance fiber-reinforced concrete using single and hybrid steel fibers

Title
Development of cost effective ultra-high-performance fiber-reinforced concrete using single and hybrid steel fibers
Author
류두열
Keywords
Ultra-high-performance fiber-reinforced concrete; Flexural performance; Fiber hybridization; Steel fiber; Cost analysis
Issue Date
2017-09
Publisher
ELSEVIER SCI LTD
Citation
CONSTRUCTION AND BUILDING MATERIALS, v. 150, page. 383-394
Abstract
This study investigates the flexural behavior of ultra-high-performance fiber-reinforced concrete (UHPFRC) with single and hybrid steel fibers. To do this, three different types of steel fibers, i.e., hooked, twisted, and straight fibers, were considered, and a UHPFRC commercially available in North America was used as a comparison. To suggest a low-cost UHPFRC exhibiting the best flexural performance, test data and cost of fibers were analyzed based on a literature review. Test results indicate that straight steel fibers provide the best flexural performance, including strength, deflection capacity, energy absorption capacity, and cracking behavior, compared with hooked and twisted fibers, especially when many fibers (2% by volume) were incorporated. Hybrid reinforcement (hooked + straight fibers) efficiently improved the flexural performance of the UHPFRC with single hooked fibers, but the twisted + straight fibers were less effective than the UHPFRC with single twisted fibers. The optimum UHPFRCs contained 2 vol% single straight steel fibers (l(f)/d(f) of 19.5/0.2) or hybrid 0.5 vol% long (l(f)/d(f) of 30/0.3) and 1.5 vol% medium-length (l(f)/d(f) of 19.5/0.2) straight steel fibers; they showed better flexural strength and cost effectiveness than other types of UHPFRCs. (C) 2017 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/abs/pii/S095006181731156X?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/115431
ISSN
0950-0618; 1879-0526
DOI
10.1016/j.conbuildmat.2017.06.018
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE