Physical and Chemical Processes in the Production of Asphalt and Asphalt Polymer Binders/b>
Abstract: This paper summarizes the results of studies of the processes occurring at the interface between mineral powder (MP) and organic binder (OB) and in thin films of OB, carried out by the methods of differential scanning and isothermal calorimetry. Asphalt binders are a composition based on an organic binder and a fine mineral powder [1]. Bitumen (in asphalt binder) and bituminous polymer binder (in asphalt polymer binder) were used as OB. The modifying polymer in the production of polymer bitumen binder (PBB) was the reactive terpolymer Elvaloy AM from DuPont, USA (ethylene glycidyl acrylate). During the preparation of asphalt binders, the MP is wetted with an organic binder, it spreads over the surface, and thin surface films of organic matter are formed. Good wetting is a necessary condition for a strong adhesive bond in the «mineral material – organic binder» system and, therefore, is the prerequisite for the specified mechanical properties of the material [1]. Undoubtedly, the properties of OB in surface films differed from the properties of OB in bulk. The processes at the phase interface were accompanied by thermal effects, which made it possible to study them by calorimetric methods.
Keywords: bitumen, modifier, terpolymer, Elvaloy AM, polymer bitumen binder (PBB), organic binder (OB), mineral powder (MP), wetting, differential scanning calorimetry (DSC).
Pages: 125-129.
For citation: Samojlova, Ye. E.; Loshakova, V. M. Physical and Chemical Processes in the Production of Asphalt and Asphalt Polymer Binders/b>. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2023. – Issue 2023-1(159) Modern building materials. – Р. 125-129. – URL: https://donnasa.ru/publish_house/journals/vestnik/2023/2023-1(159)/st_16_samojlova_loshakova.pdf (date of access: 19.11.2024). – 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
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture