| Title |
An Experimental Study on the Evaluation of Flexural Strength of Steel Fiber Reinforced Ultra-High Performance Concrete members |
| Authors |
김기현(Kim, Ki-Hyun) ; 배백일(Bae, Baek-Il) ; 최창식(Choi, Chang-Sik) |
| DOI |
https://doi.org/10.5659/JAIK.2020.36.9.157 |
| Keywords |
Ultra-high Performance Concrete; Ultra-High Strength Concrete; K-UHPC; ACI 544; Flexural Strength |
| Abstract |
In this study, the flexural strength of ultra-high performance concrete mixed with straight steel fibers were evaluated according to domestic
and foreign standards. There are 6 specimens. The main variables are the fiber volume fraction and the yield strength of the longitudinal
reinforcement. The steel fiber was mixed into 0%, 1%, and 2% with 13mm single steel fibers, and 1.5% of hybrid steel fibers with 13mm,
19mm were mixed. According to the test results, ultra-high performance concrete with higher steel fiber volume fraction and yield strength of
longitudinal reinforcement test specimens had higher moment resisting capacity. For evaluate design code of steel fiber reinforced concrete,
test specimens were calculated moment by K-UHPC design recommendation, ACI 318-19 and ACI 544.4R-88. Current K-UHPC design
recommendation predict moment resisting more specific than ACI.544R-88 and ACI 318-19. |