Practical Application of Directional Structure Formation of Asphalt Materials With Dispersed Bitumen at the Stage of Combining Components

The criterion for optimizing the composition and technology of preparation of asphalt materials with dispersed bitumen should be considered the degree of its dispersion, which affects the flow of structure formation processes in subsequent technological changes and ultimately the properties of asphalt in the layers of road pavement. This article presents the results of road repairs in the Kuvandyksky district of the Orenburg region. For the first time in industrial volumes, a bituminous suspension and an asphalt-concrete mixture based on it were prepared using bitumen in a foamed state. On the basis of materials presented it can be possible to design and manufacture an unit for the preparation of asphalt materials with dispersed bitumen from bituminous mastics and reinforced soils to asphalt mixtures and cement-concrete mixtures with bitumen additives. It is possible to obtain a sufficient degree of dispersion of bitumen and uniformity of its distribution in the asphalt concrete mixture with less stringent requirements for the content of mineral powder and water when introducing bitumen in a sprayed state. Cleaning from dust and drying of the repaired road surface from cold asphalt concrete mixes based on dispersed bitumen is not required. The material is adapted to wet and dusty surfaces. It can also be used for hot technology on the ACP (Asphalt concrete plant) without bituminous sector – to supply cold bituminous suspension instead of bitumen. At asphalt plant eliminates the need for bitumen sector in the classic sense: bitumen storage tank, bitumen pump, thermal insulated bitumen pipe, bitumen pot for bitumen dehydration, consumable bitumen pot.

S.Yu. ANDRONOV¹, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.F. IVANOV¹, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
A.V. KOCHETKOV², Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
V.I. ALFEROV³, Candidate of Sciences (Engineering), Deputy General Director (This email address is being protected from spambots. You need JavaScript enabled to view it.)

¹ Saratov State Technical University named after Y.A. Gagarin (77, Politechnicheskaya Street, Saratov, 410054, Russian Federation)
² Perm National Research Polytechnic University (29, Komsomolsky Prospect, Perm, 614990, Russian Federation)
³ “ROSDORNII” Federal autonomous institution (2, Smolnaya Street, Moscow, 125493, Russian Federation)

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