Fiber Orientation Effect on Flexural Response of UHPFRC

Doo Yeol Yoo, Min Jae Kim, Soonho Kim, Young Soo Yoon

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

This study aims to examine the fiber orientation effect on flexural behavior of ultra-high-performance fiber-reinforced concrete (UHPFRC) with various casting methods and loading rates. For this, two different placement methods were adopted for making UHPFRC beams along with two different loading rates (i.e., quasi-static and impact). Test results indicated that the flexural performance of UHPFRC beams at both quasi-static and impact loads was significantly influenced by the placement method, leading to dissimilar fiber orientation. Better fiber orientation, denoting that more fibers are aligned in the direction of tensile load, exhibited better post-cracking flexural behaviors in terms of flexural strength, deflection capacity, and toughness, compared to poor fiber orientation. Strength enhancement in UHPFRC beams was obtained by increasing the loading rates, and their deflection-hardening behaviors were successfully observed.

Original languageEnglish
Article number03007
JournalMATEC Web of Conferences
Volume138
DOIs
Publication statusPublished - 2017 Dec 30
Event6th International Conference of Euro Asia Civil Engineering Forum, EACEF 2017 - Seoul, Korea, Republic of
Duration: 2017 Aug 222017 Aug 25

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)

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