Recycled fishing nets as reinforcement of existing concrete structures

Nina Marie Sigvardsen, Amanda Helena Bonnerup, Lisbeth M. Ottosen

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Abstract

Large amounts of fishing nets are discarded every year polluting the oceans with plastic fibers on a global scale. Due to the big fishing industry in Greenland, an alternative use for discarded fishing nets would have a decreasing effect on the amount of marine litter in the Arctic. A use for discarded fishing nets could be as fiber-reinforced polymer (FRP) composites for near surface mounted reinforcement (NSMR). NSMR prolongs the lifetime of existing structures, and thus reduces the amount of materials transported to Greenland, reducing CO2-emission and expenses. The effect of NSMR FRP bars made from discarded fishing nets is examined with regards to the formation of cracks, load and failure of the beam. Results show a tendency for beams with NSMR FRP bars to prolong the linear elastic region, thus postponing the formation of cracks. Further, a tendency for reducing the formation of cracks in the shear zone and resisting a higher load is seen. A method for casting NSMR FRP bars with discarded fishing nets was developed, evaluated and suggestions for improvements were made. This study paves the way for the possibility of using discarded fishing nets as NSMR FRP bars but requires further studies.
Original languageEnglish
Title of host publicationInternational Conference on Materials, Systems and Structures in Civil Engineering : Conference workshop on Cold Region Engineering
PublisherTechnical University of Denmark, Department of Civil Engineering
Publication date2016
Pages17-26
ISBN (Print)978-8-77877-445-3
Publication statusPublished - 2016
EventInternational RILEM Conference on Materials, Systems and Structures in Civil Engineering - Technical University of Denmark, Kgs. Lyngby, Denmark
Duration: 15 Aug 201629 Aug 2016

Conference

ConferenceInternational RILEM Conference on Materials, Systems and Structures in Civil Engineering
LocationTechnical University of Denmark
CountryDenmark
CityKgs. Lyngby
Period15/08/201629/08/2016
SeriesB Y G D T U. Rapport
NumberByg R-352
ISSN1601-2917

Keywords

  • Arctic
  • Marine litter
  • Sustainability
  • Near surface mounted reinforcement
  • Fiber-reinforced polymer composites
  • Tensile testing
  • Casting of beams

Cite this

Sigvardsen, N. M., Bonnerup, A. H., & Ottosen, L. M. (2016). Recycled fishing nets as reinforcement of existing concrete structures. In International Conference on Materials, Systems and Structures in Civil Engineering: Conference workshop on Cold Region Engineering (pp. 17-26). Technical University of Denmark, Department of Civil Engineering. B Y G D T U. Rapport, No. Byg R-352