Material characterization of FRP pre-cured laminates used in the mechanically fastened FRP strengthening of RC structures

Andrea Rizzo, Nestore Galati, Antonio Nanni, Lokeswarappa R. Dharani

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

9 Scopus citations

Abstract

The Mechanically Fastened-FRP (MF-FRP) strengthening system consists of pre-cured FRP laminates having high longitudinal bearing strength attached to the concrete surface using closely spaced steel fasteners in the form of nails or concrete wedge anchors. The connection depends on several parameters such as, the intrinsic laminates properties (tensile and bearing strength), diameter and effective embedment length of the fasteners, clamping force, presence and type of washer, presence and type of filler in the gaps between the FRP material, the fastener and accessories, and the concrete. This paper focuses on the material characterization of pultruded pre-cured laminate which was used as MF-FRP strengthening to retrofit and rehabilitate off-system bridges in Missouri, USA. Tensile tests, in the longitudinal and transverse direction of the laminate, were performed on full section and open hole coupons in order to characterize the material. Bearing tests, in the longitudinal and transverse direction of the laminate, were performed to determine the capacity of the unrestrained fastener-FRP-concrete connection.

Original languageEnglish (US)
Title of host publication7th International Symposium on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures
EditorsCarol K. Shield, John P. Busel, Stephanie L. Walkup, Doug D. Gremel
PublisherAmerican Concrete Institute
Pages135-152
Number of pages18
ISBN (Electronic)9780870311895
StatePublished - Oct 1 2005
Externally publishedYes
Event7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005 - Kansas City, United States
Duration: Nov 6 2005Nov 10 2005

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-230
ISSN (Print)0193-2527

Conference

Conference7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005
Country/TerritoryUnited States
CityKansas City
Period11/6/0511/10/05

Keywords

  • Flexural strengthening
  • Material characterization
  • Mechanically fastened FRP pre-cured laminates

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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