Impact resistance of ultra-high-performance fiber-reinforced concrete with different steel fibers

Title
Impact resistance of ultra-high-performance fiber-reinforced concrete with different steel fibers
Author
류두열
Keywords
Ultra-high-performance fiber-reinforced concrete; Flexure; Impact; Aspect ratio; Fiber type
Issue Date
2016-09
Publisher
RILEM
Citation
9th RILEM International Symposium on Fiber Reinforced Concrete - BEFIB 2016, Page. 398-405
Abstract
In this study, the flexural behavior of ultra-high-performance fiber-reinforced concrete (UHPFRC) beams under drop weight impact loading was investigated. The experimental parameters included fiber aspect ratio and type. Two different aspect ratios of 65 and 100 for straight steel fibers, indicating S65 and S100, respectively, and one aspect ratio of 100 for twisted steel fiber, indicating T100, were considered. Test results indicated that the use of straight steel fibers with a higher aspect ratio (S100) and twisted steel fibers (T100) was effective in improving the flexural performance including flexural strength and energy absorption capacity under both quasi-static and impact loadings. The static flexural strength was insignificantly affected by the fiber type at an identical aspect ratio of 100, whereas the specimen T100 provided a higher deflection capacity with more micro-cracks than its counterpart (S100). On the other hand, the specimen S100 exhibited higher energy absorption capacity and better post-cracking response under impact loading, compared to that of T100. Therefore, the order of impact resistance was determined as S100 ˃ T100 ˃ S65.
URI
https://www.researchgate.net/publication/309512833_Impact_resistance_of_ultra-high-performance_fiber-reinforced_concrete_with_different_steel_fibershttp://repository.hanyang.ac.kr/handle/20.500.11754/76870
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