Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Flexural strengthening of reinforced concrete beam using a natural fibre reinforced polymer laminate: an experimental and numerical study

Flexural strengthening of reinforced concrete beam using a natural fibre reinforced polymer... Synthetic fibres like carbon and glass fibres are commonly used as reinforcing material in polymer composites used by the construction industry to retrofit reinforced concrete (RC) structures. Natural fibres can be developed as a more sustainable alternative to these synthetic fibres in polymer composites. In this study, a kenaf fibre reinforced polymer (KFRP) laminate was designed and fabricated to strengthen an RC beam in flexure. Four-point bending test was carried out on a full-scale control and KFRP-strengthened beam. The beams were also modelled numerically with the ANSYS finite element software. The kenaf fibre laminate increased the ultimate load of the RC beam by 77.9% and reduced beam deflections at similar loads with the control beam. The results from the numerical analysis in terms of the beams load–deflection response, ultimate load and crack plots compared well with the experimental investigation. This study provided further insight into the design and use of a more sustainable material for strengthening RC beams and shows how numerical analysis can enhance the development of emerging materials. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Materials and Structures Springer Journals

Flexural strengthening of reinforced concrete beam using a natural fibre reinforced polymer laminate: an experimental and numerical study

Loading next page...
 
/lp/springer-journals/flexural-strengthening-of-reinforced-concrete-beam-using-a-natural-OZ9pVp2S6i

References (51)

Publisher
Springer Journals
Copyright
Copyright © RILEM 2020
ISSN
1359-5997
eISSN
1871-6873
DOI
10.1617/s11527-020-01573-x
Publisher site
See Article on Publisher Site

Abstract

Synthetic fibres like carbon and glass fibres are commonly used as reinforcing material in polymer composites used by the construction industry to retrofit reinforced concrete (RC) structures. Natural fibres can be developed as a more sustainable alternative to these synthetic fibres in polymer composites. In this study, a kenaf fibre reinforced polymer (KFRP) laminate was designed and fabricated to strengthen an RC beam in flexure. Four-point bending test was carried out on a full-scale control and KFRP-strengthened beam. The beams were also modelled numerically with the ANSYS finite element software. The kenaf fibre laminate increased the ultimate load of the RC beam by 77.9% and reduced beam deflections at similar loads with the control beam. The results from the numerical analysis in terms of the beams load–deflection response, ultimate load and crack plots compared well with the experimental investigation. This study provided further insight into the design and use of a more sustainable material for strengthening RC beams and shows how numerical analysis can enhance the development of emerging materials.

Journal

Materials and StructuresSpringer Journals

Published: Nov 16, 2020

There are no references for this article.