Publication detail

Shear resistance of concrete-to-concrete interface without reinforcement

ČAIROVIĆ, D. ZLÁMAL, M. ŠTĚPÁNEK, P. RAPOSO, J. JÚLIO, E.

Original Title

Shear resistance of concrete-to-concrete interface without reinforcement

English Title

Shear resistance of concrete-to-concrete interface without reinforcement

Type

conference paper

Language

en

Original Abstract

Paper describes assessment of shear resistance of the interface between two concrete layers without shear reinforcement. In order to specify behavior or concrete-to-concrete interface, failure modes of the interface without reinforcement are defined and described, together with proposed design expressions. Furthermore, experimental and numerical investigation is performed, in order to confirm introduced hypothesis. Direct shear test and push-off tests were performed on specimen with different concrete strength resp. variable surface roughness obtained by mainly used methods of surface preparation. Finally, extended design approach, which includes the effects of concrete strengths, surface roughness, collateral effects of surface preparation and effects of fire, is developed and presented in this paper.

English abstract

Paper describes assessment of shear resistance of the interface between two concrete layers without shear reinforcement. In order to specify behavior or concrete-to-concrete interface, failure modes of the interface without reinforcement are defined and described, together with proposed design expressions. Furthermore, experimental and numerical investigation is performed, in order to confirm introduced hypothesis. Direct shear test and push-off tests were performed on specimen with different concrete strength resp. variable surface roughness obtained by mainly used methods of surface preparation. Finally, extended design approach, which includes the effects of concrete strengths, surface roughness, collateral effects of surface preparation and effects of fire, is developed and presented in this paper.

Keywords

concrete-to-concrete interface, adhesion, shear strength, tensile strength, pull-off, surface roughness, design approac

Released

31.08.2018

Publisher

Czech Technical University in Prague

Location

Prague

ISBN

978-80-01-06401-6

Book

Proceedings of The 12th fib International PhD Symposium in Civil Engineering

Pages from

1

Pages to

8

Pages count

8

BibTex


@inproceedings{BUT150689,
  author="Dorde {Čairović} and Martin {Zlámal} and Petr {Štěpánek} and José Maria {Raposo} and Eduardo {Júlio}",
  title="Shear resistance of concrete-to-concrete interface without reinforcement",
  annote="Paper describes assessment of shear resistance of the interface between two concrete layers without shear reinforcement. In order to specify behavior or concrete-to-concrete interface, failure modes of the interface without reinforcement are defined and described, together with proposed design expressions.
Furthermore, experimental and numerical investigation is performed, in order to confirm introduced hypothesis. Direct shear test and push-off tests were performed on specimen with different concrete strength resp. variable surface roughness obtained by mainly used methods of surface preparation.
Finally, extended design approach, which includes the effects of concrete strengths, surface roughness, collateral effects of surface preparation and effects of fire, is developed and presented in this paper.",
  address="Czech Technical University in Prague",
  booktitle="Proceedings of The 12th fib International PhD Symposium in Civil Engineering",
  chapter="150689",
  howpublished="electronic, physical medium",
  institution="Czech Technical University in Prague",
  year="2018",
  month="august",
  pages="1--8",
  publisher="Czech Technical University in Prague",
  type="conference paper"
}