Durability of concrete/FRP bonded assemblies subjected to coupled hydrothermal and creep ageing mechanisms: experimental and analytical investigations

An innovative experimental device was designed for characterizing the long-term behavior of concrete/composite bonded interfaces subjected to both sustained loading and hydrothermal ageing. This test setup makes it possible to load simultaneously several double shear specimens, by means of flat jacks connected to a hydro-pneumatic accumulator. A prototype involving three double-shear specimens was first designed and built in order to validate the concept. Besides, an analytical model was developed for studying the creep behavior of bonded concrete/FRP interfaces, and validated by comparing the simulations to experimental data. This paper aims at describing the proposed creep setup and its instrumentation, as well as the validation stages and the proposed creep analytical model. In a final part, we introduce an ongoing large scale experimental program involving fourteen test specimens (with two different commercial FRP systems) installed in a climatic room at 40°C and 95% R.H., in order superimpose a hygrothermal ageing to the creep load.

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• Corporate Authors:

  Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)

  14-20 bd Newton, Cité Descartes, Champs su Marne
  77447 Marne la Vallée,   France  Cedex 2
• Authors:
  • Houhou, N
  • Benzarti, K
  • Quiertant, M
  • Chataigner, S
  • Youssef, G
  • Rabasse, M
  • Aubagnac, C
  • GAGNON, A
  • Fléty, A
• Conference:
  • Transport Research Arena (TRA) 5th Conference: Transport Solutions from Research to Deployment
  • Location: Paris , France
  • Date: 2014-4-14 to 2014-4-17
• Publication Date: 2014-4

Language

• English

Media Info

• Pagination: 10p
• Monograph Title: Transport Research Arena (TRA) 2014 Proceedings

Subject/Index Terms

• TRT Terms: Aging (Materials); Bonding; Concrete; Creep; Mathematical models; Test procedures
• Uncontrolled Terms: Fibre reinforced polymer; Materials technology (asphalt/bitumen/concrete)
• ATRI Terms: Ageing; Bond; Concrete; Creep; Modelling; Test method
• Subject Areas: Construction;

Filing Info

• Accession Number: 01530697
• Record Type: Publication
• Source Agency: ARRB
• Files: VTI, TRIS, ATRI
• Created Date: Jul 23 2014 12:54PM