Preliminary communication

Polyurethane foam as aggregate for thermal insulating mortars and lightweight concrete

Vojtěch Václavík ; Institute of Environmental Engineering, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. listopadu, 708 33, Ostrava-Poruba, Czech Republic
Tomáš Dvorský ; Institute of Environmental Engineering, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. listopadu, 708 33, Ostrava-Poruba, Czech Republic
Vojtech Dirner ; Institute of Environmental Engineering, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. listopadu, 708 33, Ostrava-Poruba, Czech Republic
Jaromír Daxner ; D&Daxner Technology, Ltd., Těšínská 42/96, 710 00 Ostrava, Czech Republic
Martin Šťastný ; Institute of Environmental Engineering, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. listopadu, 708 33, Ostrava-Poruba, Czech Republic

Abstract

The contribution describes the use of polyurethane foam after the end of its life cycle as an aggregate both for thermal insulating mortars for various wall surfaces and for lightweight concrete. The structure and the physical and mechanical properties of thermal insulating mortar are described here. The verification of application of thermal insulating polyurethane mortar in the thickness of 50 ÷ 70 mm to a reference building, where external walls were insulated, is provided further. The second important area dealt with in this contribution is that of lightweight concrete, for which polyurethane foam of grain size of 0,125 ÷ 6 mm is used as an aggregate. The physical and mechanical properties of polyurethane concrete of various densities and an example of its prefabrication are presented.

Keywords

aggregate; lightweight concrete; mechanical properties; physical properties; polyurethane foam; thermal insulating mortar

Hrčak ID:

86744

URI

https://hrcak.srce.hr/86744

Publication date:

19.9.2012.

Article data in other languages: croatian

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