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On the Parameters of Technological Modes of Production, Laying and Compaction of Road Asphalt Concrete Mixtures

V. I. BratchunFSBEI HE «Donbas National Academy of Civil Engineering and Architecture»O. B. KonevFSBEI HE «Donbas National Academy of Civil Engineering and Architecture»V. V. JhevanovFSBEI HE «Donbas National Academy of Civil Engineering and Architecture»Ye. D. RazmyslovaFSBEI HE «Donbas National Academy of Civil Engineering and Architecture»Ye. A. ShekunovaFSBEI HE «Donbas National Academy of Civil Engineering and Architecture»D. V. KorshunFSBEI HE «Donbas National Academy of Civil Engineering and Architecture»
Abstract: It is shown that one of the obligatory conditions for the formation of the optimal structure of composite materials prepared on organic binders is the optimal values of the parameters of the modes of production, laying and compaction of asphalt-concrete mixtures in the structural layers of roadways. The criterion of optimal temperature of association of asphalt concrete mixture components in the asphalt mixer characterized by the coefficient of variation of homogeneity and content of the key component of the asphalt concrete mixture, as which is taken the content of sand fraction d = 2.5…1.25 mm, as well as energy intensity of asphalt concrete mixture production is proposed. On the example of determination of optimum temperatures of laying and compaction of complex-modified asphalt-polymer concrete mixture, in which oil bitumen BND 60/90 is modified by ethylene glycidylacrylate (2.0 % wt.) in combination with polyphosphoric acid PFK-105 (0.2 % wt.), it is established that the range of compaction temperatures 70…140 °C is optimum.

Keywords: coefficient of variation of the key component of road asphalt concrete mixes, optimum values of production, paving and compaction temperatures of road asphalt concrete mixes.

Pages: 3-9.

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For citation: Bratchun, V. I.; Konev, O. B.; Jhevanov, V. V. [et al.]. On the Parameters of Technological Modes of Production, Laying and Compaction of Road Asphalt Concrete Mixtures. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2024. – Issue 2024-1(165) Modern building materials. – Р. 3-9. – URL: https://donnasa.ru/publish_house/journals/vestnik/2024/2024-1(165)/st_01_bratchun_konev_zhevanov_rasmyslova_shekunova_korshun.pdf (date of access: 19.11.2024). – ISSN 2519-2817.

Issue 2024-1 (165)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture