Naslov
Recovery of waste expanded polystyrene in lightweight concrete production

Autori
Bedeković, Gordan ; Grčić, Ivana ; Anić Vučinić, Aleksandra ; Premur, Vitomir

Izvornik
Rudarsko-geološko-naftni zbornik (0353-4529) 46 (2019), 3; 73-80

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
waste expanded polystyrene ; lightweight concrete ; circular economy

Sažetak
Polystyrene concrete, as a type of lightweight aggregate concrete, has been used in civil construction for years. The use of waste expanded polystyrene (EPS) as a fill material in the lightweight concrete production is highly recommended from the point of view of the circular economy. The published data show that the increase in the proportion of lightweight aggregates, i.e. EPS, results in the decrease in strength, bulk density and thermal conductivity of the concrete. Utilizing large quantities of waste EPS in the non-structural polystyrene concrete production is particularly important. Unlike the structural polystyrene concrete, according to the published papers, the non-structural polystyrene concrete has not been investigated sufficiently. The purpose of this paper is to determine the influence of basic components ratio in a concrete mixture on bulk density and compressive strength of non-structural polystyrene concrete produced by utilizing waste EPS as a fill material. Test specimens, i.e. the cubes with an edge length of 100 mm each, were prepared in laboratory conditions by varying the proportions of EPS, sand up to 600 g and cement ranging from 300 g to 450 g per specimen. Bulk density and compressive strength were determined for the test specimens. Laboratory research results show the dependence of the component ratio on the bulk density ranging from 360 kg/m3 to 915 kg/m3 and compressive strength ranging from 0.385 MPa to 2.538 MPa.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo, Interdisciplinarne tehničke znanosti

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