The potential utilization of Polyethylene Terephthalate (PET) waste as fine aggregate replacement in asphalt mixture

Abstract

One of the environmental issues in most regions of Indonesia is the large number of bottles made from poly-ethylene terephthalate (PET) deposited in domestic wastes and landfills. Due to the high volume of these bottles, more than 1 million m3 landfill spaces are needed for disposal every year. The purpose of this experimental study was to investigate the possibility of using PET waste in asphalt concrete mixes as fine aggregate replacement to reduce the environmental effects of PET disposal. Based on the test results, in term of horizontal stress and indirect tensile stiffness modulus (ITSM) the use of waste PET waste increased the performance of the asphalt mixture prepared by the MBA.