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- Title
Assessment of Bond-Slip Performance of Fire Exposed High Strength Concrete with SD Rebar.
- Authors
Tariq, Faraz; Hasan, Hamza
- Abstract
This paper aims to assess the bond-slip performance of fire exposed high strength concrete (HSC) and SD 550 (super ductile) steel. The SD (super ductile) bars are comparatively more ductile and suited for fire hazards. Bond tests were conducted following RILEM specifications on both HSC and NSC. The samples were fire exposed to steady-state mode following the ISO-834 temperature–time graph. The load-slip response was used to analyze and understand the mechanism of bond NSC and HSC with SD bars exposed to various temperatures. A correlation between the load-slip behavior and the bond-temperature relationship is provided based on test findings. High-strength concrete (HSC), after exposure to 450°C, showed greater bond strength reductions than its normal strength counterpart. The distinctions in the bond response of normal and high-strength concrete (HSC) and characterize the load-slip response on account of exposure to various levels of extreme temperatures have been discussed. Predictive models have been suggested for the degradation of bonds and corresponding slip as well as models to demonstrate the overall response in terms of bond-slip of high-strength concrete exposed to various temperatures.
- Subjects
HIGH strength concrete; BOND strengths
- Publication
Fire Technology, 2024, Vol 60, Issue 3, p1543
- ISSN
0015-2684
- Publication type
Article
- DOI
10.1007/s10694-023-01534-0