GFRP strand prototype: Experimental investigation and technology readiness

Marco Rossini, Pedro Jalles, Gabriele Balconi, Antonio Nanni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Employment of corrosion-resistant reinforcement represents a widely-recognized effective strategy to ensure long-term durability of Reinforced Concrete (RC) and prestressed concrete (PC) structures. Fiber-Reinforced Polymer (FRP) composites are a reliable non-metallic solution, able to ensure both the required mechanical properties and corrosion resistance. Among composites, Carbon FRP (CFRP) has historically been the preferred solution for prestressed concrete applications. Nevertheless, the high cost of carbon fiber, along with some technological drawbacks, may prevent the widespread use of this technology. This study lays within a comprehensive research effort investigating the application of Glass FRP (GFRP) to mild-prestressed concrete elements (MPC). Glass fiber is an economical alternative to carbon fiber in applications that do not require high level of concrete pre-compression. Limiting the level of initial prestress would allow to overcome some constructability issues noticed with CFRP tendons, while the reduced cost of glass would make it a competitive and durable alternative to standard steel strands. This study focuses on the experimental investigation of GFRP strand prototypes anchored to the cross-heads of the testing frame with conventional steel prestressing chucks. The aim is to verify prototype compatibility with construction techniques traditionally applied to steel-PC. Both instantaneous pull tests and sustained pull tests are presented. The prototypical nature of the strands is accounted for in the data handling. The technology readiness level in association with possible field implementations (i.e. mild-prestressed concrete sheet piles) is discussed. Comparison with traditional materials and corrosion-resistant alternatives is considered.

Original languageEnglish (US)
Title of host publication9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018
EditorsEmmanuel Ferrier, Karim Benzarti, Jean-Francois Caron
PublisherInternational Institute for FRP in Construction (IIFC)
Pages1030-1037
Number of pages8
ISBN (Electronic)9780000000002
StatePublished - Jan 1 2018
Externally publishedYes
Event9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018 - Paris, France
Duration: Jul 17 2018Jul 19 2018

Publication series

Name9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018
Volume2018-July

Conference

Conference9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018
CountryFrance
CityParis
Period7/17/187/19/18

Keywords

  • Bridge substructure
  • GFRP strands
  • Mild prestress
  • Prototype technology
  • Technology readiness

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Polymers and Plastics

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  • Cite this

    Rossini, M., Jalles, P., Balconi, G., & Nanni, A. (2018). GFRP strand prototype: Experimental investigation and technology readiness. In E. Ferrier, K. Benzarti, & J-F. Caron (Eds.), 9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018 (pp. 1030-1037). (9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018; Vol. 2018-July). International Institute for FRP in Construction (IIFC).