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DOI: 10.15862/11SATS125 (https://doi.org/10.15862/11SATS125)

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Yryshkin I.A., Maidanova N.V., Karpov B.N., Klekovkina M.P.  Assessment of the influence of heterogeneity in the interaction of asphalt concrete pavement elements with the aim of reducing the process of plastic rutting. Russian Journal of Transport Engineering. 2025; 12(1). Available at: https://t-s.today/PDF/11SATS125.pdf (in Russian). DOI: 10.15862/11SATS125

Assessment of the influence of heterogeneity in the interaction of asphalt concrete pavement elements with the aim of reducing the process of plastic rutting

^1,2Igor A. Yryshkin, ³Natalia V. Maidanova, ¹Boris N. Karpov, ¹Maria P. Klekovkina

¹Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia
²LLC «DSK ABZ-Dorstroy», Saint Petersburg, Russia
³SC «ABZ-1», Saint Petersburg, Russia

Corresponding author: Igor A. Yryshkin, e-mail: iyaryshkin@ABZ-1.ru

Abstract. The problem of rutting remains unresolved to this day by both domestic and foreign specialists. In the course of developing the regulatory framework of the road construction sector, positive results have been achieved, allowing for a reduction in the rate of formation of this defect, and the problem of using outdated design methodologies-reducing the calculation model to a two-layer structure-has been addressed. However, the heterogeneity of the asphalt concrete structure as a whole, specifically the strength of interlayer bonds, is still not taken into account. This study is aimed at identifying the values of heterogeneity caused by various parameters of the boundary layer interfaces, construction conditions, as well as the physical and mechanical properties of the road construction materials used. The author describes the experimental procedure for determining the strength of interlayer bonds in samples taken from the road pavement, with an explanation of the principle of forming the sample set of investigated points, and conducted under laboratory conditions. To account for varying climatic conditions, the study includes locations with ideal, average, and unfavorable weather conditions during construction. In the laboratory samples, a bitumen emulsion with different bitumen content percentages was used. The paper presents detailed test results, describes the experience of using the Leitner device, and provides an evaluation of the obtained data. The direction of further research is indicated, aimed at approaching the solution of the tasks set by the author.

Keywords: interlayer bond strength; interlayer adhesion; asphalt concrete; shear stress; emulsion concentration; stone mastic asphalt; adhesion

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