Methods of modification of road bitumens

This paper presents a study on the possibility of using secondary products of the chemical industry for modifying road bitumen used in the sharply continental climates of Central Asia. At the same time, their physical and chemical properties were studied, and it was found that the modifiers M-1, M-2, M-3 affect the properties of bitumen BND 60/90 and BND 90/130 differently. The optimal variant of adding modifiers for the formation of bitumen with high physicochemical and physico-mechanical properties has been determined. An optimal variant of their combination and bituminous composition and a technological process for its production have been developed, while the content of the M-1 modifier is 3%, and the M-2 modifier is 3%, and the M-3 modifier is 5%.

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