title: An approach to the usage of polyethylene terephthalate (PET) waste as roadway pavement material.
abstract: This study investigates an application area for Polyethylene Terephthalate (PET) bottle waste which has become an environmental problem in recent decades as being a considerable part of the total plastic waste bulk. Two novel additive materials, namely Thin Liquid Polyol PET (TLPP) and Viscous Polyol PET (VPP), were chemically derived from waste PET bottles and used to modify the base asphalt separately for this aim. The effects of TLPP and VPP on the asphalt and hot mix asphalt (HMA) mixture properties were detected through conventional tests (Penetration, Softening Point, Ductility, Marshall Stability, Nicholson Stripping) and Superpave methods (Rotational Viscosity, Dynamic Shear Rheometer (DSR), Bending Beam Rheometer (BBR)). Also, chemical structures were described by Scanning Electron Microscope (SEM) equipped with Energy Dispersive Spectrometer (EDS) and Fourier Transform Infrared (FTIR) techniques. Since TLPP and VPP were determined to improve the low temperature performance and fatigue resistance of the asphalt as well as the Marshall Stability and stripping resistance of the HMA mixtures based on the results of the applied tests, the usage of PET waste as an asphalt roadway pavement material offers an alternative and a beneficial way of disposal of this ecologically hazardous material.
authors: Gazi University, Eng. Fac., Chem. Eng. Depart., 06570 Maltepe-Ankara, Turkey. Electronic address: mguru@gazi.edu.tr.
authors: Metin
authors: M
authors: Gürü
authors: Gazi University, Eng. Fac., Civil Eng. Depart., 06570 Maltepe-Ankara, Turkey.
authors: M Kürşat
authors: MK
authors: Çubuk
authors: Gazi University, Eng. Fac., Civil Eng. Depart., 06570 Maltepe-Ankara, Turkey.
authors: Deniz
authors: D
authors: Arslan
authors: Gazi University, Eng. Fac., Civil Eng. Depart., 06570 Maltepe-Ankara, Turkey.
authors: S Ali
authors: SA
authors: Farzanian
authors: Hitit University, Eng. Fac., Chem. Eng. Depart., 19100 Çorum, Turkey.
authors: İbrahim
authors: İ
authors: Bilici
mesh_terms: D003252:Construction Materials / Q000032:analysis*; D006838:Hydrocarbons; D007220:Industrial Waste / Q000032:analysis*; D008855:Microscopy, Electron, Scanning; D010316:Particle Size; D011093:Polyethylene Terephthalates / Q000032:analysis*; D012037:Refuse Disposal / Q000379:methods; D012212:Rheology; D014783:Viscosity
chemical_list: D006838:Hydrocarbons; D007220:Industrial Waste; D011093:Polyethylene Terephthalates; C006647:asphalt
keywords: Fatigue; Modified asphalt; Polyethylene terephthalate; Stripping resistance; Thin Liquid Polyol PET; Viscous Polyol PET