The Effect of CFRP Length on the Failure Mode of Strengthened Concrete Beams
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
Material | Cement | Coarse aggregate | Fine aggregate | Water | Concrete admixture | Fly-ash |
---|---|---|---|---|---|---|
Weight per concrete cubic meter (kg) | 300 | 615 | 1210 | 185 | 6.60 | 95 |
Mass ratio | 1.000 | 2.050 | 4.033 | 0.617 | 0.022 | 0.317 |
Curing days | Compressive strength (MPa) |
---|---|
3 | 23.4 |
7 | 29.9 |
28 | 41.4 |
Material | Concrete | CFRP | Adhesive |
---|---|---|---|
Elastic Modulus (GPa) | 32.89 | 165 | 9.60 |
Poisson’s ratio | 0.28 | 0.25 | 0.30 |
Density | Tensile strength | Ductility | Typical thickness |
---|---|---|---|
20 g·m−3 | 4640 MPa | 1.7% | 0.111 mm |
2.2. Specifications of the Beams
2.3. Test Setup
2.4. Experimental Results
2.5. Numerical Simulation
3. Results and Discussion
3.1. The Effect of CFRP Length on Stresses around the Crack Tip
3.2. The Effect of CFRP Length on Stresses at the Interface
3.3. The Effect of CFRP Length on Stresses at the End of CFRP
3.3.1. CFRP Length of 0.10 m
3.3.2. CFRP Length of 0.20 m
3.3.3. CFRP Length of 0.30 m
3.3.4. CFRP Length of 0.35 m
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Ding, J.; Wang, F.; Huang, X.; Chen, S. The Effect of CFRP Length on the Failure Mode of Strengthened Concrete Beams. Polymers 2014, 6, 1705-1726. https://doi.org/10.3390/polym6061705
Ding J, Wang F, Huang X, Chen S. The Effect of CFRP Length on the Failure Mode of Strengthened Concrete Beams. Polymers. 2014; 6(6):1705-1726. https://doi.org/10.3390/polym6061705
Chicago/Turabian StyleDing, Jun, Fang Wang, Xia Huang, and Song Chen. 2014. "The Effect of CFRP Length on the Failure Mode of Strengthened Concrete Beams" Polymers 6, no. 6: 1705-1726. https://doi.org/10.3390/polym6061705