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AuthorEltantawi, Islam
AuthorAlnahhal, Wael
AuthorEl Refai, Ahmed
AuthorYounis, Adel
AuthorAlnuaimi, Nasser
AuthorKahraman, Ramazan
Available date2023-02-15T10:16:34Z
Publication Date2022
Publication NameComposite Structures
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.compstruct.2021.114987
URIhttp://hdl.handle.net/10576/40087
AbstractThis paper investigates the bond between high-strength concrete (HSC) and tensile lap-spliced basalt fiber-reinforced polymer (BFRP) bars. Ten large-scale BFRP-reinforced concrete beams (300 x 450 x 3900 mm) were fabricated and tested under four-point loading until failure. The parameters investigated included the BFRP bar diameter (10, 12, and 16 mm), the splice length (400-1200 mm range), and the bar surface texture (sand-coated (SC) and helically wrapped (HW)). Test results demonstrated that the flexural capacity of the beams reinforced with SC-BFRP bars was almost similar to that of beams reinforced with HW-BFRP bars. However, SC-BFRP bars showed a slightly higher bond with concrete compared to that of helically wrapped counterparts. The bond strength of spliced BFRP bars was inversely related to the splice length. Also, BFRP bars with larger diameter bars require longer splice lengths to reach their maximum capacity. Finally, the experimentally estimated critical splice lengths were compared to those calculated by existing models and code-based equations. Both ACI 440.1R-15 and CSA S806-12 provisions were conservative in predicting splice length for BFRP bars. However, the CSA-S6-14 design code was more accurate in estimating the splice length for BFRP with bigger diameters. Though, it was not conservative with smaller diameters.
SponsorThe authors show their gratitude to Qatar University for their financial support through the internal grant no. QUCG-CENG-20/21-3. The findings achieved herein are solely the responsibility of the authors. Open Access funding provided by the Qatar National Library. Data availability The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.
Languageen
PublisherElsevier
SubjectBasalt FRP bars
Bond
Fiber reinforced polymer (FRP)
High-strength concrete
Lap-splice
Reinforced concrete beams
TitleBond performance of tensile lap-spliced basalt-FRP reinforcement in high-strength concrete beams
TypeArticle
Volume Number281
dc.accessType Open Access


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