Abstract
AbstractTextile‐reinforced concrete (TRC) has great potential to be used for strengthening concrete structures, and a combination of carbon fiber‐reinforced polymer (CFRP) grid and ultra‐high‐performance concrete (UHPC) could be more desirable. Although the UHPC is known for good durability, the bond degradation between UHPC and CFRP under freeze–thaw cycles (FTCs) remains unclear. Therefore, this paper conducted single fiber bundle and grid pull‐out tests on UHPC‐based TRC (TRUHPC) plates under FTCs to study the bond behavior between CFRP fiber and UHPC matrix. It was found that, after exposed to 700 FTCs, the pull‐out load of the single bundle of CFRP decreased by a maximum of 33.9%, while it dropped by 19.0% in case of the CFRP grid. Finally, a trilinear bond‐slip model was developed and verified against the experimental results. The findings of this study hold significant importance in assessing the tensile behavior of TRC plates under FTCs.
Published Version
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