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Bending crack behaviour of plain concrete beams externally reinforced with TRC

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Abstract

This paper presents the experimental study of concrete beams in bending, externally strengthened with Textile Reinforced Cementitious materials (TRC) with varying contact area with the concrete. In order to study the pure influence of the TRC on the concrete substrate, only non-internally-reinforced concrete beams are considered. The crack pattern evolution is monitored with Digital Image Correlation, and the influence of the contact width between the concrete substrate and the external reinforcement is investigated. The results show that the TRC reinforcement has an important crack bridging capacity, and consequently that its application over the full beam width is beneficial for the loadbearing capacity and the limitation of the crack widths of the concrete beam.

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Acknowledgments

Research partially funded by a scholarship of the Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT-Vlaanderen) and by funding of Agentschap Innoveren & Ondernemen through the SBO project CeComStruct. The authors gratefully acknowledge the cooperation with the company TRADECC, through the delivery of the epoxy glue.

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Authors and Affiliations

  1. Department of Mechanics of Materials and Constructions, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium

    Svetlana Verbruggen, Tine Tysmans & Jan Wastiels

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  1. Svetlana Verbruggen
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  2. Tine Tysmans
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  3. Jan Wastiels
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Correspondence to Svetlana Verbruggen.

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Verbruggen, S., Tysmans, T. & Wastiels, J. Bending crack behaviour of plain concrete beams externally reinforced with TRC. Mater Struct 49, 5303–5314 (2016). https://doi.org/10.1617/s11527-016-0861-1

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  • DOI: https://doi.org/10.1617/s11527-016-0861-1

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