The effect of asphalt heating temperature on stability marshall asphalt concrete mixture added pet plastic waste

Abstract In an effort to prevent the spread of damage and increase the ability of road construction to carry loads, many efforts have been made by related parties to utilize plastic waste as an additive to road construction materials. Several tests that have been carried out by researchers indicate that there is a tendency to increase the marshall stability value of asphalt mixtures after adding PET powder to the asphalt material. Asphalt is a black to dark brown solid or semi-solid material which in road pavement engineering functions as an adhesive for the aggregate fraction. Viscosity is the basic physical property of asphalt which influences the process of making asphalt mixtures. This research was conducted at the Transportation and Road Laboratory, Faculty of Engineering, Tadulako University. The content of PET plastic used was 0.00%, 0.75% and 1.00% by weight of asphalt at varying asphalt heating temperatures of 180°C, 185°C and 190°C. Determination of Optimum Asphalt Content (OAC) of AC-WC asphalt mixtures using the Method Marshall. This study aims to determine the effect of adding PET plastic waste to asphalt binder and on stability values marshall as well as the influence of asphalt heating temperature variations on stability values marshall asphalt mixture. From the research results, it is known that the addition of 0.75% and 1.00% PET resulted in a lower penetration and ductility value. This happens because the asphalt becomes harder and more brittle as evidenced by the increase in the softening point of asphalt and several other properties of asphalt which become greater. It can also be seen that the stability value of asphalt mixture increases with increasing PET content in asphalt. The highest stability of the mixture at each content of PET 0.00%, 0.75% and 1.00%, namely 1676.13 kg, 1798.72 kg and 1981.28 kg occurred at 190°C.