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Measuring of crack bridging of CFRP strengthened concrete by digital image correlation

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Abstract
To strengthen existing reinforced concrete structures, often externally bonded reinforcement (EBR) is used. In this situation cracks in the concrete are bridged by both the internal and external reinforcement, influencing the crack pattern. To study this crack bridging effect of CFRP (carbon fibre reinforced polymer) bonded to concrete, a digital image correlation technique (DICT) is used. By means of this technique a visualization and detailed quantification is obtained of the strains in the laminate and surrounding concrete at the location of cracks. Given these measurements, the local crack pattern directly underneath the CFRP could be compared with the overall crack pattern of the tested beams. A smaller crack spacing has been demonstrated nearby the CFRP.
Keywords
deformations, Digital image correlation, cracks, externally bonded reinforcement, concrete

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Chicago
Vasseur, Lander, Stijn Matthys, Luc Taerwe, and D Van Hemelrijck. 2009. “Measuring of Crack Bridging of CFRP Strengthened Concrete by Digital Image Correlation.” In Non-Destructive Testing in Civil Engineering, 7th International Symposium, CD Proceedings, ed. Odile Abraham and Xavuer Dérobert, 1009–1014. Paris, France: Laboratoire Central des Ponts et Chaussées.
APA
Vasseur, L., Matthys, S., Taerwe, L., & Van Hemelrijck, D. (2009). Measuring of crack bridging of CFRP strengthened concrete by digital image correlation. In O. Abraham & X. Dérobert (Eds.), Non-Destructive Testing in Civil Engineering, 7th International symposium, CD Proceedings (pp. 1009–1014). Presented at the 7th International symposium on Non-Destructive Testing in Civil Engineering (NDTCE  ’09), Paris, France: Laboratoire Central des Ponts et Chaussées.
Vancouver
1.
Vasseur L, Matthys S, Taerwe L, Van Hemelrijck D. Measuring of crack bridging of CFRP strengthened concrete by digital image correlation. In: Abraham O, Dérobert X, editors. Non-Destructive Testing in Civil Engineering, 7th International symposium, CD Proceedings. Paris, France: Laboratoire Central des Ponts et Chaussées; 2009. p. 1009–14.
MLA
Vasseur, Lander, Stijn Matthys, Luc Taerwe, et al. “Measuring of Crack Bridging of CFRP Strengthened Concrete by Digital Image Correlation.” Non-Destructive Testing in Civil Engineering, 7th International Symposium, CD Proceedings. Ed. Odile Abraham & Xavuer Dérobert. Paris, France: Laboratoire Central des Ponts et Chaussées, 2009. 1009–1014. Print.
@inproceedings{1246831,
  abstract     = {To strengthen existing reinforced concrete structures, often externally bonded reinforcement (EBR) is used. In this situation cracks in the concrete are bridged by both the internal and external reinforcement, influencing the crack pattern. To study this crack bridging effect of CFRP (carbon fibre reinforced polymer) bonded to concrete, a digital image correlation technique (DICT) is used. By means of this technique a visualization and detailed quantification is obtained of the strains in the laminate and surrounding concrete at the location of cracks. Given these measurements, the local crack pattern directly underneath the CFRP could be compared with the overall crack pattern of the tested beams. A smaller crack spacing has been demonstrated nearby the CFRP.},
  author       = {Vasseur, Lander and Matthys, Stijn and Taerwe, Luc and Van Hemelrijck, D},
  booktitle    = {Non-Destructive Testing in Civil Engineering, 7th International symposium, CD Proceedings},
  editor       = {Abraham, Odile and D{\'e}robert, Xavuer},
  isbn         = {9782720825422},
  keyword      = {deformations,Digital image correlation,cracks,externally bonded reinforcement,concrete},
  language     = {eng},
  location     = {Nantes, France},
  pages        = {1009--1014},
  publisher    = {Laboratoire Central des Ponts et Chauss{\'e}es},
  title        = {Measuring of crack bridging of CFRP strengthened concrete by digital image correlation},
  url          = {http://www.ndt.net/article/ndtce2009/papers/204.pdf},
  year         = {2009},
}