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Materials 2018, 11(6), 931; https://doi.org/10.3390/ma11060931

Experimental Analysis of MOC Composite with a Waste-Expanded Polypropylene-Based Aggregate

1
Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague 6, Czech Republic
2
Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic
*
Author to whom correspondence should be addressed.
Received: 25 April 2018 / Revised: 23 May 2018 / Accepted: 30 May 2018 / Published: 31 May 2018
(This article belongs to the Section Advanced Composites)
View Full-Text   |   Download PDF [4176 KB, uploaded 31 May 2018]   |  

Abstract

Polypropylene (PP) is one of the most widely produced types of plastic worldwide, but its recycling is limited. This work presents a study of the utilization of expanded polypropylene (EPP) waste in a magnesium oxychloride cement (MOC) composite usable in the building industry. MOC is formed by mixing magnesium oxide powder and a concentrated solution of magnesium chloride and is characterized by excellent bonding ability to large quantities of different types of aggregates. A developed air-cured MOC composite, where an EPP-based aggregate was used for the full replacement of natural aggregate, was investigated in terms of its basic physical, mechanical, thermal and water resistance properties. The results demonstrate that incorporation of EPP waste greatly improved the thermal insulation properties, while the mechanical resistance was reduced to an acceptable level. The developed MOC composite containing EPP waste can be considered as an alternative thermal insulation material applicable for the construction of floor or envelope construction systems. View Full-Text
Keywords: magnesium oxychloride cement; waste expanded polypropylene; ultra-lightweight aggregate; thermal insulation; mechanical parameters; water resistance magnesium oxychloride cement; waste expanded polypropylene; ultra-lightweight aggregate; thermal insulation; mechanical parameters; water resistance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Záleská, M.; Pavlíková, M.; Jankovský, O.; Lojka, M.; Pivák, A.; Pavlík, Z. Experimental Analysis of MOC Composite with a Waste-Expanded Polypropylene-Based Aggregate. Materials 2018, 11, 931.

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