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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.Litovchenko Dmitry Pavlovich. post-graduate student Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it ShiryaevArtemOlegovich post-graduate student Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Vysotskaya Marina Alekseevna candidate of Technical Sciences, Associate Professor. Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Belgorod State Technological University named after V. G. Shukhov The organization address: Russia 308012, Belgorod region, Belgorod, Kostyukovst., 46 KorolevEvgenyValeryevich doctor of technical sciences, professor Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Saint Petersburg State University of Architecture and Civil Engineering The organization address: Russia, 190005, St. Petersburg, 2-nd Krasnoarmeyskaya st., 4
Title of the articleInfluence of polymer and plasticizer compatibility on the quality indicators of bituminous binder
Abstract.Problem statement. The aim of the study is to assess the effect of the compatibility of the polymer and various plasticizers on the quality and stability indicators overtime of the final product – polymer-bitumen binder (PBB). Results. At the initial stage of the research, the basic set of characteristics of the starting materials (bitumen and plasticizer) was determined. The structure formation of the studied binders was controlled by varying the concentration of the plasticizer, which was used as mazut, I-50 oil, Uniplast, extract of selective oil refining (ESP), Catgol. The study of plasticizing additives was carried out for volatility in the range of technological temperatures for the preparation of PMB, viscosity indicators, and their group composition was also evaluated. In the course of the experiment, the dynamics of changes in the indicators of the properties of modified binders, as well as their thermal stability, due to the composition of the plasticizer and its compatibility with the polymer used, were revealed. It is proposed to investigate the compatibility of the components: plasticizer and polymer, at the preparatory stage, before the preparation of laboratory formulations of PBB. Recommendations have been developed for the use of plasticizers to obtain effective compositions of polymer-bitumen binders. The contribution of the compatibility of the «polymer-plasticizer» system to the stability of PBB to destructive processes of separation and ageing has been studied. Conclusions. The significance of this topic is also because at present there is no single regulatory documentation governing the requirements for plasticizers for modifying bituminous binders, including the preparation of PMB. The studies carried out convincingly demonstrate that the compatibility of the polymer and the plasticizer has a decisive influence on the quality indicators of modified bituminous binders; however, this aspect has not been properly studied for the systems under consideration.
Keywords.polymer-bitumen binder, plasticizer, polymer, compatibility, oil road bitumen.
For citations:Litovchenko D. P., Shiryaev A. O., Korolev E. V., Vysotskaya M. A. Influence of polymer and plasticizer compatibility on the quality indicators of bituminous binder // Izvestija KGASU. 2021. № 2 (56). С. 22–36. DOI: 10.52409/20731523_2021_2_22.


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