New issues - Известия Казанского государственного архитектурно-строительного университета.

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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.Smirnov Denis Sergeevich candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Yagund Eduard Mikhailovich candidate of chemical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Brodneva Valeria Evgenievna laboratory assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it JSC «Tatavtodor» The organization address: 420012, Russia, Kazan, Dostoevsky st., 18/75
Title of the articleAssessment of the impact of cellulose impurities on the properties of crushed stone mastic asphalt concrete
Abstract.Problem statement. The purpose of the study is to identify the effect of cellulosic impurities on the properties of crushed stone-mastic asphalt concrete (SMAC), consider the properties of crushed stone-mastic asphalt concrete, which fundamentally combines the advantages of impact concrete and maximum structural asphalt concrete, study the influence of various types of stabilizing additives on the characteristics of crushed stone-mastic asphalt concrete. Results. The main results of the study are to identify the regularity of the change in physical and mechanical properties depending on the stabilizing additive used. Studies of IR-spectra, tests for indicators of compressive strength, shear resistance, crack resistance were carried out. The regularity of increasing the physical and mechanical properties of asphalt concrete mixture in a composition containing the stabilizing additive was revealed. This is due to the high content of calcium carbonate in it, which forms stronger chemisorption bonds with bitumen at the phase interface. Conclusions. The significance of the obtained results for the construction industry is that in the study of the dependence of the properties of crushed stone-mastic asphalt concrete on the used stabilizing additive with different content of calcium carbonate, it was found that the use of a stabilizing additive with high content of calcium carbonate increases the physical, mechanical and operational properties of asphalt concrete.
Keywords.asphalt concrete, bitumen, strength, shear resistance, fine-fiber aggregate, IR-spectroscopy method.
For citations:Smirnov D.S., Yagund E.M., Brodneva V.E. Assessment of the impact of cellulose impurities on the properties of crushed stone mastic asphalt concrete // Izvestiya KGASU. 2020. №4(54) P.80-87.


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