On Complex Modification of Asphalt Concrete Microstructure by Divinyl-Styrene Thermoelastoplastic
V. I. Bratchuna, A. V. Zagorodnyayab, V. L. Bespalova, Ye. A. Romasyuka
a Donbas National Academy of Civil Engineering and Architecture
b SEI LPR «Lugansk National Agrarian University»
Abstract: Comparative analysis of solubility parameters of group components of bitumen and polymers-modifier – СКMС-30, DСТ-30-01 was carried out. Using experimental-statistical method of experiment planning mathematical models of physical and mechanical properties of bitumen-polymer binders are obtained, which allow to optimize compositions and predict properties of asphalt concrete. Using differential scanning calorimetry (DSC) method, dispersed structures in bitumopolymerseric binder are studied. IR spectroscopy results suggest that a layer of structured butadiene-methylstyrene rubber and divinyl-styrene copolymer on the mineral powder surface improves wetting with its binder and provides stronger intermolecular interaction at the interface. It has been found that the compaction temperature range of the asphalt polymer perobetone mixtures is 70 to 130 °С; Average energy consumption per increment of density unit of asphalt concrete mixtures with complex-modified microstructure is 0.81 J·m3/kg.
Keywords: bitumen-polymer binder, divinyl-styrene copolymer, butadiene-methyl-styrene rubber, experiment planning, differential scanning calorimetry, IR spectroscopy, temperature interval sealability.
Pages: 5-16.
Link for citation: Bratchun, V. I.; Zagorodnyaya, A. V.; Bespalov, V. L. [et al.]. On Complex Modification of Asphalt Concrete Microstructure by Divinyl-Styrene Thermoelastoplastic. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2020. – Issue 2020-1(141) Modern building materials. – Р. 5-16. – URL: https://donnasa.ru/publish_house/journals/vestnik/2020/2020-1(141)/st_01_bratchun_zagorodnyaya_bespalov_romasyuk.pdf (date of access: 15.10.2024). (in Russian)
Issue 2020-1 (141)Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture