T he article is devoted to the study of obtaining and study of physical and mechanical properties of paint materials on the basis of domestic petroleum bitumen. The expansion of the fields of application of bituminous materials is becoming more relevant due to the methods of regulation and physico-mechanical and adhesive-strength properties. The study of physical and mechanical properties of bituminous paint materials showed that water absorption changes in almost 3.5 times (from 0.03% to 0.11%), and their viability in the studied temperature range remains sufficient for the application of several layers of film from the prepared compositions. At the same time, all of them far exceed the known compositions in terms of impact strength and the magnitude of water absorption. Heat resistance of coatings does not reduce. And its value is within the permissible limits of temperatures used in technological processes.
This article is devoted to the development of complex purification technology of used motor oil, its scientific and technological foundations formulations, including: determination the nature of contamination in used motor oil, research the ability of ultrasonic irradiation process to decontaminate of used motor oil, determination and optimization of the factors, that may affect feasibility and efficiency of the proposed method, research of the nature adsorbents (local origin) vermiculite influence on the efficiency of the used motor oil purification process from the unwanted components and to identify the optimal characteristics of materials. The estimated theoretical value of the work consists of integrated research of the regularities of unwanted components destruction by ultrasonic irradiation and adsorption and compare their effectiveness with foreign analogs, definition of the thermodynamics and kinetics of the adsorption process.
The aging of bitumen in the asphalt concrete pavement inevitably raises the question of the possibility of restoration of its regeneration characteristics. In general bitumen is classified as road bitumen, building bitumen, roofing bitumen, insulation bitumen, special purpose bitumen and others. Road bitumen is most produced (70-80%) and intended for the production of all major types of construction and repair of road works, and also liquid bitumen intended to prolong the season of road works. A promising method to improve the quality of bitumen and road coatings is using the polymeric modifier, such as polymeric waste and secondary polymers such as polyethylene, polyethylene terephthalate, atactic polypropylene in bituminous compositions. Modifying bitumen with polymers enhances its elasticity, strength and heat resistance at elevated temperatures. Increasing the crack resistance of road surfaces, increases the lifetime. This article reviews the applications of the polymer components to improve the structural and mechanical properties of bitumen. The qualitative characteristics of bitumen can be restored with recycled polymeric materials such as polyethylene. Using polyethylene in the road mix composition improves the physical and mechanical properties of bitumen by improving the adhesion of bitumen with mineral components. This allows to considerably reducing the consumption of bitumen, which in turn enables to utilize a large-waste of polymer.
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