A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recovery of waste expanded polystyrene in lightweight concrete production ; Oporaba otpadnoga stiropora izradom lakoga betona
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 fi ll material in lightweight concrete production is highly recommended from the point of view of the circular economy. Published data shows that an increase in the proportion of lightweight aggregates, i.e. EPS, results in a decrease in strength, bulk density and thermal conductivity of the concrete. Utilizing large quantities of waste EPS in non-structural polystyrene concrete production is particularly important. Unlike structural polystyrene concrete, according to the published papers, non-structural polystyrene concrete has not been investigated suffi ciently. The purpose of this paper is to determine the infl uence of the ratios of the basic components in a concrete mixture on the bulk density and compressive strength of non-structural polystyrene concrete produced by utilizing waste EPS as a fi ll material. The test specimens, i.e. 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 a 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. ; Stiroporbetoni, kao vrsta lakoagregatnih betona, u gradnji se koriste već niz godina. Sa stajališta kružne ekonomije, od interesa je korištenje otpadnoga ekspandiranog polistirena (EPS) kao punila u njihovoj proizvodnji. Iz dostupnih podataka lako je uočiti kako s povećanjem udjela lakih agregata, odnosno EPS-a, betonima opadaju čvrstoća, zapreminska masa i toplinska vodljivost. Posebno je važna izrada nekonstrukcijskih stiroporbetona zbrinjavanjem što veće količine otpadnoga EPS-a. Za razliku od konstrukcijskih stiroporbetona, a prema dostupnoj literaturi, nekonstrukcijski nisu dovoljno istraženi. Svrha je ovoga rada utvrđivanje zakonitosti udjela osnovnih sastojaka betona na zapreminsku masu i tlačnu čvrstoću nekonstrukcijskoga stiroporbetona načinjenoga korištenjem otpadnoga EPS-a kao punila. U laboratorijskim uvjetima izrađena su probna tijela, kocke stranica 100 mm, variranjem udjela EPS-a, zatim dodavanjem pijeska do 600 g i cementa od 300 do 450 g. Probnim tijelima određene su zapreminske mase i tlačne čvrstoće. Rezultati laboratorijskih istraživanja pokazali su ovisnost udjela sastojaka na zapreminske mase koje variraju u rasponu do 360 do 915 kg/m3 i tlačne čvrstoće u rasponu od 0,385 do 2,538 MPa.
Recovery of waste expanded polystyrene in lightweight concrete production ; Oporaba otpadnoga stiropora izradom lakoga betona
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 fi ll material in lightweight concrete production is highly recommended from the point of view of the circular economy. Published data shows that an increase in the proportion of lightweight aggregates, i.e. EPS, results in a decrease in strength, bulk density and thermal conductivity of the concrete. Utilizing large quantities of waste EPS in non-structural polystyrene concrete production is particularly important. Unlike structural polystyrene concrete, according to the published papers, non-structural polystyrene concrete has not been investigated suffi ciently. The purpose of this paper is to determine the infl uence of the ratios of the basic components in a concrete mixture on the bulk density and compressive strength of non-structural polystyrene concrete produced by utilizing waste EPS as a fi ll material. The test specimens, i.e. 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 a 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. ; Stiroporbetoni, kao vrsta lakoagregatnih betona, u gradnji se koriste već niz godina. Sa stajališta kružne ekonomije, od interesa je korištenje otpadnoga ekspandiranog polistirena (EPS) kao punila u njihovoj proizvodnji. Iz dostupnih podataka lako je uočiti kako s povećanjem udjela lakih agregata, odnosno EPS-a, betonima opadaju čvrstoća, zapreminska masa i toplinska vodljivost. Posebno je važna izrada nekonstrukcijskih stiroporbetona zbrinjavanjem što veće količine otpadnoga EPS-a. Za razliku od konstrukcijskih stiroporbetona, a prema dostupnoj literaturi, nekonstrukcijski nisu dovoljno istraženi. Svrha je ovoga rada utvrđivanje zakonitosti udjela osnovnih sastojaka betona na zapreminsku masu i tlačnu čvrstoću nekonstrukcijskoga stiroporbetona načinjenoga korištenjem otpadnoga EPS-a kao punila. U laboratorijskim uvjetima izrađena su probna tijela, kocke stranica 100 mm, variranjem udjela EPS-a, zatim dodavanjem pijeska do 600 g i cementa od 300 do 450 g. Probnim tijelima određene su zapreminske mase i tlačne čvrstoće. Rezultati laboratorijskih istraživanja pokazali su ovisnost udjela sastojaka na zapreminske mase koje variraju u rasponu do 360 do 915 kg/m3 i tlačne čvrstoće u rasponu od 0,385 do 2,538 MPa.
Recovery of waste expanded polystyrene in lightweight concrete production ; Oporaba otpadnoga stiropora izradom lakoga betona
Bedeković, Gordan (author) / Grčić, Ivana (author) / Anić Vučinić, Aleksandra (author) / Premur, Vitomir (author)
2019-01-01
https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=324524&lang=en ; Rudarsko-geološko-naftni zbornik ; Volume 34 ; Issue 3 ; ISSN 0353-4529 (Print) ; ISSN 1849-0409 (Online)
Article (Journal)
Electronic Resource
English
Petroleum and Geology Engineering , kružno gospodarstvo , TEHNIČKE ZNANOSTI. Rudarstvo , TECHNICAL SCIENCES. Mining , otpadni ekspandirani polistiren , TECHNICAL SCIENCES. Interdisciplinary Technical Sciences , TEHNIČKE ZNANOSTI. Interdisciplinarne tehničke znanosti , lightweight concrete , lakoagregatni beton , nafta i geološko inženjerstvo , waste expanded polystyrene , circular economy
DDC:
690
Lightweight Concrete Incorporating Waste Expanded Polystyrene
| Tema Archive | 2013
Investigating Mix Proportions of Lightweight Expanded Polystyrene Concrete
| British Library Conference Proceedings | 2011