About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Valery St. Lesovik, doctor of technical sciences, professor, Belgorod Shukhov State Technological University, Belgorod, Russian Federation. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Vasily P. Denisov, candidate of technical sciences, Belgorod Shukhov State Technological University, Belgorod, Russian Federation. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Maxim D. Kabalin, post-graduate student, Belgorod Shukhov State Technological University, Belgorod, Russian Federation. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Marina A. Vysotskaya, candidate of technical sciences, associate professor, Belgorod Shukhov State Technological University, Belgorod, Russian Federation. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it |
| Title of the article | Justification for the choice of asphalt granuloconcrete mixtures of types M and K from the perspective of the joint work of base layers and pavement surface |
| Abstract. | Statement of the problem. The dynamic and sustainable development of the road construction sector requires innovative development and a transition to “green development” technologies, which involve reducing the impact on the environment and reducing the carbon footprint, as well as reforms in the production of environmentally friendly, cost-effective building materials and technologies for working with them. Cold recycling technology meets the challenges of our time. However, it is currently at its formative stage and requires activity in the field of research on the advantages and disadvantages of this or that type of asphalt granuloconcrete, its durability and collaboration with asphalt concrete. The purpose of the work is to study and comparatively analyze asphalt granuloconcrete types M and K from the standpoint of physical, mechanical and operational properties, as well as to evaluate their joint work with asphalt concrete in the design of road pavements. The objectives of the work are to study the influence of mineral and complex binders on the physical, mechanical and operational characteristics of granular asphalt concrete; to assess the impact of the methodology for selecting and testing composites; to analyze the effectiveness of joint work of asphalt granuloconcrete types M and K with asphalt concrete. Results. The paper presents the results of studies of asphalt granulocrete types M and K selected and tested using two different methods. The obtained data demonstrated that asphalt granulocrete of type K is closest to asphalt concrete in terms of properties. When cement is used as a part of asphalt granulocrete, a decrease in its strength characteristics is observed when bending at a temperature of 0 ° C relative to asphalt concrete. Thus, the bending strength decreased by more than 20%, and the deformation by more than 40%; the compressive strength at a temperature of +200C after 10 freeze-thaw cycles and the frost resistance coefficient decreased by 2 and 3 times respectively. The analysis of the laboratory model of the pavement structure consisting of "AGB type K + asphalt concrete" demonstrated that its bending strength at a temperature of +20 0C and deformation exceed the indicators of a similar model from "AGB type M + asphalt concrete" by 13% and 185% respectively. Conclusions. The significance of the results obtained for the construction industry lies in the fact that the features of the joint work of asphalt granuloconcrete layers with asphalt concrete have been identified. The best joint work is characterized by prefabricated structures made of asphalt granuloconcrete type K and asphalt concrete due to the similarity of strength and deformation characteristics in a wide temperature range. To ensure water and frost resistance, compositions of type M asphalt granular concrete require adjustment with special additives. |
| Keywords. | granulated asphalt, bitumen emulsion, cement, granulated asphalt concrete, asphalt concrete, rigidity, prefabricated structures, pressing, Marshall compactor |
| For citations: | Lesovik V.S., Denisov V.P., Kabalin M.D., Vysotskaya M.A. Justification for the choice of asphalt granuloconcrete mixtures of types M and K from the position of joint work of base layers and pavement surface // News KSUAE, 2024, № 1(67), p. 51-62, DOI: 10.48612/NewsKSUAE/67.6, EDN: HJQTES |
