The Influence of Polyethylene Additives on Asphalt Pavement Properties
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The article is devoted to determining the possibility of adding high-pressure polyethylene to the asphalt concrete, its optimal quantity in the mixture and the effect on the coating properties. When using a thermoplastic polyethylene in the mixture of the asphalt concrete compositions fillers the environmental impact is minimized and their physical and mechanical properties are improved while reducing the share of natural sources. The solution of these two determined tasks meaning providing the best quality properties of asphalt concrete using mass polymer solid household waste was the purpose of this work. The composition of hot dense fine-grained asphalt concrete type B grade II according to the national Russian Standard 9128-2009, manufactured in the research laboratory “Far East” was adopted as the source composition. The optimum concentration of polyethylene additive in asphalt concrete composition equal to 1% by weight of mineral materials was determined. The research results of physical and mechanical properties of standard and modified asphalt concrete were described, tests for rutting resistance when rolling the loaded wheel on the coating were carried out. Conclusions and decisions, indicating the improvement of asphalt concrete endurance with the addition of 1% polyethylene by weight of mineral fillers are made.
KeywordsHigh-pressure polyethylene Asphalt concrete Asphalt roads
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