Assessment of the recycling potential of fresh concrete waste using a factorial design of experiments

Correia, Sivaldo Leite; Souza, Fernando Lordêllo dos Santos; Dienstmann, Gracieli; Segadães, Ana M.

doi:10.1016/j.wasman.2009.06.014

Cited by 70 publications

(38 citation statements)

References 16 publications

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“…In this study, in order to prevent this undesirable feature also detected in the previous experiments carried out by the present team [41], the effect of the incorporation of an adhesion promoter was also investigated and considered as a material factor. The Design of Experiments (DoE) methodology, which has been applied in recent years with success to design and as an optimization process of composite materials [42][43][44][45], was also applied in this study. Planning of experiments and data treatment was accomplished by means of mix-level full factorial design and analysis of variance ANOVA.…”

Section: Research Significancementioning

confidence: 99%

Mix design process of polyester polymer mortars modified with recycled GFRP waste materials

Ribeiro

Fiúza

Castro

et al. 2013

Composite Structures

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a b s t r a c tIn this study, the effect of incorporation of recycled glass fibre reinforced plastics (GFRP) waste materials, obtained by means of shredding and milling processes, on mechanical behaviour of polyester polymer mortars (PM) was assessed. For this purpose, different contents of GFRP recyclates, between 4% up to 12% in weight, were incorporated into polyester PM materials as sand aggregates and filler replacements. The effect of the addition of a silane coupling agent to resin binder was also evaluated. Applied waste material was proceeding from the shredding of the leftovers resultant from the cutting and assembly processes of GFRP pultrusion profiles. Currently, these leftovers as well as non-conform products and scrap resulting from pultrusion manufacturing process are landfilled, with additional costs to producers and suppliers. Hence, besides the evident environmental benefits, a viable and feasible solution for these wastes would also conduct to significant economic advantages.Design of experiments and data treatment were accomplish by means of full factorial design approach and analysis of variance ANOVA. Experimental results were promising toward the recyclability of GFRP waste materials as partial replacement of aggregates and reinforcement for PM materials, with significant improvements on mechanical properties of resultant mortars with regards to waste-free formulations.

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Section: Research Significancementioning

confidence: 99%

Mix design process of polyester polymer mortars modified with recycled GFRP waste materials

Ribeiro

Fiúza

Castro

et al. 2013

Composite Structures

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“…The proportion of replacement was 0%, 50%, and 100% by mass for both aggregates. The optimal number of mixes was calculated using design of experiment method (2 ), with the number of studied factors (two in the case of this study) [11]. The first factor is the percentage of RCA, and the second factor is the percentage of RFA.…”

Section: Designmentioning

confidence: 99%

“…Recent successful studies on the use of FCW as aggregates in concrete have been reported [11,12]. The results of these studies show that the compressive strength and the slump decrease with increasing the FCW aggregates percentage.…”

Section: Introductionmentioning

confidence: 99%

A Study of Concrete Made with Fine and Coarse Aggregates Recycled from Fresh Concrete Waste

Serifou

Sbartaï

Yotte³

et al. 2013

Journal of Construction Engineering

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This paper deals with the possibility of using fresh concrete waste as recycled aggregates in concrete. An experimental program based on two variables (proportion of fine aggregates replacement and proportion of coarse aggregates replacement) was implemented. The proportions of replacement were 0%, 50%, and 100% by mass of aggregates. Several mechanical properties were tested as compressive and tensile strengths. The results show a good correlation between aggregates replacement percentage and concrete properties. Concerning mechanical properties, a gradual decrease in compressive, splitting, and flexural strengthn with the increase in recycled aggregate percentage is shown.

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“…Added value of the recycling solution was assessed by means of flexural and compressive load carrying capacities of GFRP admixed mortars with regard to unmodified PMs. The planning of experiments and data treatment were accomplished by means of full factorial design and through appropriate statistical tools based on analyses of variance, which over the last years have shown to be powerful tools in the optimization processes of mixtures, mix designs and processing parameters (Correia et al, 2009(Correia et al, , 2010Muthukumar and Mohan, 2004;Ribeiro et al, 2003b).…”

Section: Introductionmentioning

confidence: 99%

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

Ribeiro

Castro

Silva

et al. 2015

Resources, Conservation and Recycling

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Assessment of the recycling potential of fresh concrete waste using a factorial design of experiments

Cited by 70 publications

References 16 publications

Mix design process of polyester polymer mortars modified with recycled GFRP waste materials

Mix design process of polyester polymer mortars modified with recycled GFRP waste materials

A Study of Concrete Made with Fine and Coarse Aggregates Recycled from Fresh Concrete Waste

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

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