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Open AccessArticle

Structural and Mechanical Characterization of Sustainable Composites Based on Recycled and Stabilized Fly Ash

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Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy
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INSTM and Chemistry for Technologies Laboratory, University of Brescia, via Branze 38, 25123 Brescia, Italy
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Author to whom correspondence should be addressed.
Materials 2014, 7(8), 5920-5933; https://doi.org/10.3390/ma7085920
Received: 13 June 2014 / Revised: 3 August 2014 / Accepted: 5 August 2014 / Published: 18 August 2014
(This article belongs to the Special Issue Recycled Materials)
This paper reports the results on the use of an innovative inert, based on stabilized fly ash from municipal solid waste incineration as a filler for polypropylene. The starting material, which contains large quantities of leachable Pb and Zn, was stabilized by means of an innovative process using rice husk ash as a waste silica source, together with other fly ashes, such as coal fly ash and flue gas desulfurization residues. The use of all waste materials to obtain a new filler makes the proposed technology extremely sustainable and competitive. The new composites, obtained by using the stabilized material as a filler for polypropylene, were characterized and their mechanical properties were also investigated. A comparison with a traditional polypropylene and calcium carbonate based compound was also done. This research activity was realized in the frame of the COSMOS-RICE project, financed by the EU Commission. View Full-Text
Keywords: fly ash; rice husk ash; stabilization process; polypropylene; melt compounding fly ash; rice husk ash; stabilization process; polypropylene; melt compounding
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Besco, S.; Bosio, A.; Brisotto, M.; Depero, L.E.; Lorenzetti, A.; Bontempi, E.; Bonora, R.; Modesti, M. Structural and Mechanical Characterization of Sustainable Composites Based on Recycled and Stabilized Fly Ash. Materials 2014, 7, 5920-5933.

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