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Re-use assessment of thermoset composite wastes as aggregate and filler replacement for concrete-polymer composite materials: A case study regarding GFRP pultrusion wastes

Author

Listed:
  • Ribeiro, M.C.S.
  • Meira-Castro, A.C.
  • Silva, F.G.
  • Santos, J.
  • Meixedo, J.P.
  • Fiúza, A.
  • Dinis, M.L.
  • Alvim, M.R.

Abstract

Glass fibre-reinforced plastics (GFRP), nowadays commonly used in the construction, transportation and automobile sectors, have been considered inherently difficult to recycle due to both the cross-linked nature of thermoset resins, which cannot be remoulded, and the complex composition of the composite itself, which includes glass fibres, polymer matrix and different types of inorganic fillers. Hence, to date, most of the thermoset based GFRP waste is being incinerated or landfilled leading to negative environmental impacts and additional costs to producers and suppliers. With an increasing awareness of environmental matters and the subsequent desire to save resources, recycling would convert an expensive waste disposal into a profitable reusable material. In this study, the effect of the incorporation of mechanically recycled GFRP pultrusion wastes on flexural and compressive behaviour of polyester polymer mortars (PM) was assessed. For this purpose, different contents of GFRP recyclates (0%, 4%, 8% and 12%, w/w), with distinct size grades (coarse fibrous mixture and fine powdered mixture), were incorporated into polyester PM as sand aggregates and filler replacements. The effect of the incorporation of a silane coupling agent was also assessed. Experimental results revealed that GFRP waste filled polymer mortars show improved mechanical behaviour over unmodified polyester based mortars, thus indicating the feasibility of GFRP waste reuse as raw material in concrete-polymer composites.

Suggested Citation

  • Ribeiro, M.C.S. & Meira-Castro, A.C. & Silva, F.G. & Santos, J. & Meixedo, J.P. & Fiúza, A. & Dinis, M.L. & Alvim, M.R., 2015. "Re-use assessment of thermoset composite wastes as aggregate and filler replacement for concrete-polymer composite materials: A case study regarding GFRP pultrusion wastes," Resources, Conservation & Recycling, Elsevier, vol. 104(PB), pages 417-426.
    • Handle: RePEc:eee:recore:v:104:y:2015:i:pb:p:417-426
    DOI: 10.1016/j.resconrec.2013.10.001
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    References listed on IDEAS

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    1. Marques, Rui Cunha & da Cruz, Nuno Ferreira & Carvalho, Pedro, 2012. "Assessing and exploring (in)efficiency in Portuguese recycling systems using non-parametric methods," Resources, Conservation & Recycling, Elsevier, vol. 67(C), pages 34-43.
    2. Alejandro Villanueva Kryzaniak & Luis Delgado Sancho & Zheng Luo & Peter Eder & Ana Sofia Catarino & Donald Litten, 2010. "Study on the Selection of Waste Streams for End-of-waste Assessment- Final Report," JRC Research Reports JRC58206, Joint Research Centre.
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    1. Beauson, J. & Laurent, A. & Rudolph, D.P. & Pagh Jensen, J., 2022. "The complex end-of-life of wind turbine blades: A review of the European context," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).

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