Next Article in Journal
Transient Photocurrent Response of Plasmon-Enhanced Polymer Solar Cells with Gold Nanoparticles
Previous Article in Journal
Optical and UV-Aging Properties of LDH-Modified Bitumen
Article Menu

Export Article

Open AccessArticle
Materials 2015, 8(7), 4034-4049; doi:10.3390/ma8074034

Bond Strength of Composite CFRP Reinforcing Bars in Timber

1
Department of Mechanical and Construction Engineering, Northumbria University, 212 Wynne-Jones Building, Newcastle upon Tyne NE1 8ST, UK
2
Department of Mechanical and Construction Engineering, Northumbria University, 209 Wynne-Jones Building, Newcastle upon Tyne NE1 8ST, UK
3
Department of Engineering, University of Perugia, 92 Via Duranti, Perugia 06125, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Jorge de Brito
Received: 2 June 2015 / Revised: 16 June 2015 / Accepted: 29 June 2015 / Published: 3 July 2015
(This article belongs to the Section Structure Analysis and Characterization)
View Full-Text   |   Download PDF [1654 KB, uploaded 3 July 2015]   |  

Abstract

The use of near-surface mounted (NSM) fibre-reinforced polymer (FRP) bars is an interesting method for increasing the shear and flexural strength of existing timber members. This article examines the behaviour of carbon FRP (CFRP) bars in timber under direct pull-out conditions. The objective of this experimental program is to investigate the bond strength between composite bars and timber: bars were epoxied into small notches made into chestnut and fir wood members using a commercially-available epoxy system. Bonded lengths varied from 150 to 300 mm. Failure modes, stress and strain distributions and the bond strength of CFRP bars have been evaluated and discussed. The pull-out capacity in NSM CFRP bars at the onset of debonding increased with bonded length up to a length of 250 mm. While CFRP bar’s pull-out was achieved only for specimens with bonded lengths of 150 and 200 mm, bar tensile failure was mainly recorded for bonded lengths of 250 and 300 mm. View Full-Text
Keywords: timber; composite materials; carbon fibre; epoxy resin; bonding; testing timber; composite materials; carbon fibre; epoxy resin; bonding; testing
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Corradi, M.; Righetti, L.; Borri, A. Bond Strength of Composite CFRP Reinforcing Bars in Timber. Materials 2015, 8, 4034-4049.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top