Assessing the recycling potential of glass fibre reinforced plastic waste in concrete and cement composites

An integrated recycling approach for GFRP pultrusion wastes: recycling and reuse assessment into new composite materials using Fuzzy Boolean Nets

“…In some particular cases, for lower sand replacement ratios, slender increases on compressive, splitting tensile and/or flexural strengths were observed (Asokan et al, 2010). However, most of the times some undesirable features were noticed such as significant losses in the mechanical properties (mainly due to high water-cement ratio required to achieve the desirable workability) (Asokan et al, 2009;Correia et al, 2011b;Tittarelli and Moriconi, 2010;Tittarelli and Shah, 2013), higher wear loss (Correia et al, 2011b) and weak adhesion at recyclatebinder interface. More-over, depending upon glass fibre nature, some incompatibility is-sues derived from alkalis-silica reaction may even occur (Tittarelli and Moriconi, 2010).…”

“…The most extensive research work in this field has been carried out on Portland cement concrete in which mechanically recycled GFRP waste, and more rarely CFRP waste, have been incorporated either as reinforcement, aggregate or filler replacement (e.g., Asokan et al, 2009Asokan et al, , 2010Correia et al, 2011b;Osmani and Pappu, 2010;Tittarelli and Moriconi, 2010;Tittarelli and Shah, 2013). In addition to the environmental benefits, and as function of specific mix design formulation, reported added values include slight to strong decreases of permeability with subsequent improved durability (Asokan et al, 2010;Correia et al, 2011b;Tittarelli and Moriconi, 2010;Tittarelli and Shah, 2013), less drying shrinkage (Asokan et al, 2010;Tittarelli and Moriconi, 2010), improved workability and reduced risk of cracking induced by restrained shrinkage (Tittarelli and Shah, 2013), and a global cost reduction of raw materials.…”

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

“…Filler or reinforcement material for artificial wood (Demura et al, 1995), high density polyethylene plastic lumber (George and Dillman, 2000), wood particle board (Conroy et al, 2006), rubber pavements blocks (Itoh and Kaneko, 2002), cement based concrete materials (Asokan et al, 2009(Asokan et al, , 2010Correia et al, 2011;Kojima and Furukawa, 1995;Osmani and Pappu, 2010;Tittarelli and Moriconi, 2010;Wakasuhi and Sugiura, 1995;Yamada k Mihashi, 1995), bulk and sheet moulding compounds (DeRosa et al, 2005a(DeRosa et al, , 2005bJutte and Graham, 1991) and core material for textile sandwich structures (Adolphs and Branca, 2001), were some of the foreseen potential applications for the recyclates. Most of them have failed at an industrial scale due to one or both of the following reasons: (a) tendency of recyclate addition to negatively affect the mechanical properties of final composite; and (b) negative cost balance, where recycling and refining operation costs outweighed the market value of the virgin products (calcium carbonate and glass fibres); (Halliwell, 2006;Palmer et al, 2009;Pickering, 2006).…”

Safety and Durability Analysis of Structural Works in Civil Engineering

“…In our country operators pays more attention to the concrete structure itself and the architectural design in construction civil engineering. In China people neglect the interference of the objective factors of the environment during the construction process, which leads to the problem of civil engineering structure obviously [9] .…”