Використання нафтового шламу у виробництві асфальтобетону

Abstract

It is proposed to use oil sludge – waste of oil refining industry in the technological process of producing asphalt - a material that has a wide range of applications and is therefore in high demand in the market of construction materials. The m ain area of use of sludge in the above production is to obtain from it a method of concentration, high-boiling hydrocarbon fraction (boiling point > 360 °C) that is modified by polymer additives (polypropylene or polystyrene foam), and as a result acquiresthe properties of bitumen. This bitumen is capable of completely replacing petroleum bitumen, without which it is impossible to obtain asphalt concrete with a quality level that meets the requirements of the standard documentation. Also, a scheme is proposed that combines all stages of the production of bitumen from oil sludge and the use of this bitumen together with mineral components and old asphalt to produce hot (laying temperature not lower than 120 °C) high density asphalt concrete (residual porosity up to 1% ) type A (crushed stone content 50–60%). Used in the old asphalt concrete scheme, it saves resources through the use of recyclables and ensures continuous production, thereby reducing the cost of the final product.