Effects of Polymer on Properties of Asphalt Concrete Mixture by Using Solid Waste

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Abdul basit Abdul-Aziz Muhmood, Zeina Osama Yahiya


The monolithic mixture of gravel, sand, and mineral powder is made up in part of the asphalt binder by bitumen. Due to its adhesive qualities and capacity to transform into a liquid at high temperatures and a solid at low temperatures, bitumen serves this purpose. Bitumen is the most susceptible of all the asphalt components to the impacts of traffic loads and climate conditions due to its thermoplasticity and low strength. Bitumen softening in warmer weather leads to road rutting, and winter brittleness causes low-temperature cracking. By using polymer additives such latex, terpolymers, and thermoplastics of the polyethylene type, bitumen properties such as durability of asphalt concrete can be improved. This trash also needs to adhere to two conditions. The first need is that it work with bitumen. Second, although perhaps not to the same extent as specific modifiers, it must provide bitumen the necessary positive qualities. According to the study, "recycled" polyethylene produced by processing plastic goods (such as films intended for agricultural use or packaging material) satisfies these criteria. Recycled polyethylene increases the viscosity, cohesive strength, and heat resistance of bitumen. The results of the experiments were used to create efficient polyethylene-based combinations that significantly reduced the amount of pricey specialty polymer modifiers needed to make bitumen. Recycling solid waste for use as aggregate (coarse, fine, filler) in asphalt mixtures is the aim of this research. It was the optimum asphalt ratio 4.883, so we use three percent (2, 3,4and5) % of polyethylene by the weight of optimal asphalt, due to increases the tensile strength and improves the durability of highway pavement in the binder layer. The purpose of using solid waste is to reduce cost and dispose of solid waste.    

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