Shear friction capacity of recycled concretes

Authors

  • B. González Fonteboa Universidad de A Coruña
  • F. Martínez Universidad de A Coruña
  • D. Carro Universidad de A Coruña
  • J. Eiras Universidad de A Coruña

DOI:

https://doi.org/10.3989/mc.2010.49708

Keywords:

silica fume, recycled concrete, recycled aggregate, shear friction, strain

Abstract


The aim of this research was to determine the behavior of recycled concrete in response to the phenomenon of shear transfer. To perform it, a conventional control concrete and a concrete with 50% recycled coarse aggregate were designed. An additional goal was to shed light on how this behavior is modified with a pozzolanic addition, silica fume. Therefore, two types of concrete were designed, a conventional and a recycled concrete, both made with 8% of silica fume. In conclusion, a reduction of shear friction capacity was observed in recycled concretes, considerably higher in the case of the specimen without reinforcement. The addition of silica fume improved the behavior of recycled concretes. The results obtained were compared with the formulations of the different authors. In all cases, these were found to be conservative. However, the safety margins offered by recycled concretes are lower than those obtained with conventional concretes.

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Published

2010-09-30

How to Cite

González Fonteboa, B., Martínez, F., Carro, D., & Eiras, J. (2010). Shear friction capacity of recycled concretes. Materiales De Construcción, 60(299), 53–67. https://doi.org/10.3989/mc.2010.49708

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Research Articles