Uniaxial Tensile Behavior of Anchored Carbon Fabric-Reinforced Cementitious Matrix Plates
Publication: Journal of Materials in Civil Engineering
Volume 35, Issue 8
Abstract
The fabric-reinforced cementitious matrix (FRCM) has begun to show great application prospects in structural strengthening, especially for seismic strengthening. However, a poor monolithic response of fabric and mortar limits the utility ratio of the fabric and the mechanical properties of FRCM. A simple, fast, and efficient method for improving the bonding properties of the fabric–mortar interface to enhance the performance of the FRCM plate remains to be investigated. In this study, uniaxial tensile tests on 42 carbon fabric-reinforced cementitious matrix (C-FRCM) plates with anchored carbon fiber bundles were performed to analyze the influence of anchorages on their mechanical properties, and to compare them to the prior results of pull-out tests of anchored carbon fiber bundles. The results show that the ultimate tensile stress, the energy dissipation, and the fiber utility ratio can be increased significantly after anchoring, but the anchorage cannot fully restrict the slippage of fiber fabrics. The effect of other variables, such as the bond length of steel plates, the number of fabric layers, and mortar strength, were also tested and discussed.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The support from the National Key Research and Development Program of China (2018YFE0124900), the National Natural Science Foundation of China (51878604, 52078454, and 51820105012) and Guangdong Provincial Key Areas R&D Programs (2019B111107002) are greatly appreciated.
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Published In
Journal of Materials in Civil Engineering
Volume 35 • Issue 8 • August 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: May 24, 2022
Accepted: Jan 11, 2023
Published online: May 30, 2023
Published in print: Aug 1, 2023
Discussion open until: Oct 30, 2023
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