Flexural Behaviour of Hybrid FRC-GFRP/PUR Sandwich Panels

Correia L., Silva T., Sena-Cruz J., Pereira E., Valente I., Barros J.

10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering (CICE), İstanbul, Turkey, 8 - 10 December 2021, vol.198, pp.2458-2469 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 198
  • Doi Number: 10.1007/978-3-030-88166-5_213
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.2458-2469
  • Keywords: Sandwich panels, Composites, GFRP, PUR, Fibre reinforced concrete
  • Istanbul Technical University Affiliated: No


The present work has been developed in the scope of the research project "Easyfloor - Development of composite sandwich panels for building floor rehabilitation". This project aims at developing a hybrid sandwich panel, constituting an alternative construction system to conventional floor solutions, mainly for buildings rehabilitation. The developed hybrid sandwich panel is composed of a top face layer of steel fibre reinforced self-compacting concrete (FRC), a core of polyurethane (PUR) closed-cell foam and a bottom face sheet and lateral webs of glass fibre reinforced polymer (GFRP). The composite (GFRP/PUR) is manufactured by pultrusion, and its cross-section includes a sheet of GFRP between the FRC and PUR. After the production of the composite part, fresh FRC is poured onto the FRP component to materialize the top face of the panel.