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The Use of Polyethylene Terephthalate Waste for Modifying Asphalt Concrete Using the Marshall Test Cover

The Use of Polyethylene Terephthalate Waste for Modifying Asphalt Concrete Using the Marshall Test

Open Access
|Jul 2019

Abstract

This study considers the use of polyethylene terephthalate (PET) waste for modifying asphalt concrete. In the study, the optimum bitumen content of asphalt concrete was replaced with 4%, 6%, 8%, 10%, 12%, 14% and 16% of PET waste; the Marshall test was conducted on the samples. A comparison of the unmodified and PET-modified asphalt concrete showed that the stability of the modified asphalt concrete was reduced. The maximum stability for the PET waste-modified asphalt concrete was recorded at a content of 12% PET waste. This gives about a 20.4% reduction in stability. The study reveals that the addition of PET waste to the asphalt concrete causes a reduction in the flow value except with the addition of 14% and 16 % waste. This implies that the introduction of PET waste could improve the permanent deformation resistance of asphalt, although there is concern about a reduction in fatigue resistance.

DOI: https://doi.org/10.2478/sjce-2019-0010 | Journal eISSN: 1338-3973 | Journal ISSN: 1210-3896
Language: English
Page range: 9 - 15
Published on: Jul 2, 2019
Published by: Slovak University of Technology in Bratislava
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2019 Olumide Moses Ogundipe, published by Slovak University of Technology in Bratislava
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.