Thermo-Oxidative Aging of Bitumen, Modified by the Reactivity of the Oligomers, in a Thin Layer
M. K. Pakter, V. L. Bespalov, V. I. Bratchun, Ye. A. Samoylova, A. A. Stukalov
Donbas National Academy of Civil Engineering and Architecture
Annotation: The paper deals with the change of penetration (ΔП25) and softening temperature (ΔТr) viscous bitumen modified Elvaloem AM in the presence of polyphosphoric acid PFC-105, with its thermal and oxidation (TO), aging (163 °С) in a thin film (when its thickness such δ < δкр at which the entire volume of film involved in the process). The connection of ΔП25 and ΔТr with a conversion of bitumen, calculated from the mass loss of modified bitumen in the process of thermal oxidation has been given. The comparison of changes ΔП25 and ΔТr for the original (unmodified) and modified bitumen has been carried out and it has been suggested the usage of the developed approach for the selection of terms and preparation of bitumen modification mode asphalt and polymer concrete mixture.
Keywords: road bitumen modified with reactive oligomers; thermo-oxidative aging of modified bitumen in a thin layer, Elvaloy AM, polyphosphoric acid.
Pages: 121-127.
Link for citation: Pakter, M. K.; Bespalov, V. L.; Bratchun, V. I. [et al.]. Thermo-Oxidative Aging of Bitumen, Modified by the Reactivity of the Oligomers, in a Thin Layer. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2017. – Vol. 13, N 3. – Р. 121-127. – URL: https://donnasa.ru/publish_house/journals/spgs/2017-3/01_pakter_bespalov_bratchun_samoylova_stukalov.pdf (date of access: 16.09.2024). (in Russian)
Vol. 13, N 3 (2017)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture