TY - JOUR
T1 - Fiber Orientation Effect on Flexural Response of UHPFRC
AU - Yoo, Doo Yeol
AU - Kim, Min Jae
AU - Kim, Soonho
AU - Yoon, Young Soo
N1 - Publisher Copyright:
© The Authors, published by EDP Sciences, 2017.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2017/12/30
Y1 - 2017/12/30
N2 - 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.
AB - 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.
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U2 - 10.1051/matecconf/201713803007
DO - 10.1051/matecconf/201713803007
M3 - Conference article
AN - SCOPUS:85040509370
VL - 138
JO - MATEC Web of Conferences
JF - MATEC Web of Conferences
SN - 2261-236X
M1 - 03007
T2 - 6th International Conference of Euro Asia Civil Engineering Forum, EACEF 2017
Y2 - 22 August 2017 through 25 August 2017
ER -