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Analysis of parematers of recycled asphalt aggregate concrete

Authors :
Gorek, Dario
Mrakovčić, Silvija
Torić Malić, Neira
Bede, Natalija
Publication Year :
2021

Abstract

U ovom radu analizirana su svojstva svježeg i očvrsnulog betona s udjelom od 70% recikliranog asfalta. Dobiveni rezultati uspoređeni su sa svojstvima referentnog betona izrađenog od prirodnog drobljenog agregata i sa svojstvima betona izrađenog s agregatom od recikliranog betona. Na uzorcima svježeg betona određena je konzistencija betona rasprostiranjem, udio pora i gustoća betona. Na uzorcima očvrsnulog betona određena je gustoća betona, tlačna čvrstoća, vlačna čvrstoća savijanjem i cijepanjem, te vodopropusnost i koeficijent toplinske provodljivosti. Na temelju analize dobivenih rezultata možemo odrediti optimalni postotak zamjene prirodnog drobljenog agregata recikliranim asfaltom uz zadržavanje zadovoljavajućih svojstava svježeg ili očvrsnulog betona.<br />In this paper, properties of fresh and hardened concrete with 70% replacement with recycled asphalt aggregate are analyzed. Obtained results were compared with the properties of reference concrete made from natural crushed stone and with the properties of concrete made from recycled concrete aggregate. Flow table test, air content and density were determined on fresh concrete samples. Density, compressive strength, flexural and tensile splitting strength were determined on the samples of hardened concrete, as well as water permeability and thermal conductivity were determined too on this samples. Based on the analysis of given results, we can determine optimal percentage of replacement of natural crushed stone with recycled asphalt aggregate, while maintaining fresh or hardened concrete properties.

Details

Language :
Croatian
Database :
OpenAIRE
Accession number :
edsair.od......4016..2e6a4322c7b85c27baf50609492723c8