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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Alexander A. Khomyakov, post-graduate student, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Alexey Y. Fomin, candidate of technical sciences, director of the Institute of Transport Facilities of the Kazan State University of Architecture and Civil Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Rashit K. Nizamov, doctor of technical sciences, professor, Kazan State University of Architecture and Engineering, academic of Academy of Sciences of the Republic of Tatarstan, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Title of the articleBituminous binder modified with polysulfide based on a mixture of aliphatic amines and higher fatty acids
Abstract.In conditions of high traffic loads on road surfaces, the use of more durable asphalt concrete becomes necessary. This can be achieved by introducing asphalt concretes that are resistant to plastic and low-temperature deformations. Asphalt concretes made with bitumen-polysulfide binders have similar properties. However, to achieve the required effect, the amount of polysulfide introduced into bitumen should be up to 40% by weight. The purpose of the work is to develop a composition of organic polysulfide based on sulfur, higher fatty acids and amines, capable of increasing the technical characteristics of bitumen when introduced into bitumen in an amount of 5-10 wt.%. The objectives of the study are: selection of the composition of organic polysulfide; synthesis of organic polysulfide; study of the properties of bitumen binders modified with organic polysulfide. Results. At work presents the results of studies of bitumen modified with organic polysulfide based on sulfur, polyamines and higher fatty acids. The structure of organic polysulfides has been studied. Using optical and electron microscopy, it was established that the resulting polysulfides have a crystalline structure. Conclusions. It has been established that modification of road bitumen with polysulfide based on sulfur, polyamines and higher fatty acids in an amount of 5% allows increasing the softening temperature, as well as the adhesion of the bitumen binder to the mineral material.
Keywords.amines, sulfur, higher fatty acids, polysulfides, petroleum bitumen, softening point, brittleness point, adhesion
For citations:Khomyakov A.A., Fomin A.Y., Nizamov R.K. Bituminous binder modified with polysulfide based on the mixture of aliphatic amines and higher fatty acids // News KSUAE, 2023, № 4(66), p. 267-274, DOI: 10.52409/20731523_2023_4_267, EDN: UDCGYP


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