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Investigation of Fatigue Life of Dispersion-Reinforced Asphalt Concrete R. R. Gaiday

O. A. PshenichnykhDonbas National Academy of Civil Engineering and ArchitectureYe. A. RomasyukDonbas National Academy of Civil Engineering and ArchitectureI. Ye. VoloshchukDonbas National Academy of Civil Engineering and ArchitectureS. P. DorokhovaDonbas National Academy of Civil Engineering and ArchitectureD. A. SamsonovDonbas National Academy of Civil Engineering and ArchitectureYe. N. KhomutovDonbas National Academy of Civil Engineering and ArchitectureR. R. GaidayDon State Technical University
Abstract: The article experimentally proves that the introduction of dispersed reinforcement in the form of glass fiber, polypropylene and chrysotile-asbestos fibers into asphalt concrete mixtures can significantly increase the fatigue life of dispersed-reinforced asphalt concrete under the influence of short-term cyclic and long-term static loads. It has been established that the optimal content of polypropylene fiber (0.7 % wt.) made it possible to increase the fatigue life of asphalt concrete type «Gx» by 1.6 times. The optimal content of glass fiber and chrysotile-asbestos fibers (1.5 % wt.) made it possible to increase the fatigue life of dispersion-reinforced hot asphalt concrete under short-term cyclic loading by 32 and 22 %, respectively. The introduction of these fibers into a fine-grained asphalt concrete mix of type «B» made it possible to increase, on average, 1.9-2.1 times the fatigue life under the influence of long-term static loads.

Keywords: asphalt concrete, dispersed reinforcement, fibers, fatigue life.

Pages: 109-115.

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For citation: Pshenichnykh, O. A.; Romasyuk, Ye. A.; Voloshchuk, I. Ye. [et al.]. Investigation of Fatigue Life of Dispersion-Reinforced Asphalt Concrete R. R. Gaiday. – Text : electronic. – In: <em>Proceeding of the Donbas National Academy of Civil Engineering and Architecture</em>. – 2023. – Issue 2023-1(159) Modern building materials. – Р. 109-115. – URL: https://donnasa.ru/publish_house/journals/vestnik/2023/2023-1(159)/st_14_pshenichnykh_romasyuk_voloshchuk_dorokhova_samsonov_khomutov_gaidai.pdf (date of access: 22.12.2024). – ISSN 2519-2817.

Issue 2023-1 (159)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture