About the Appropriateness of the Activation of the Surface of a Mineral Concrete Powder on Organic Binders with Oligomers and Polymers
V. I. Bratchun, V. A. Bespalov, O. N. Narygnaya, V. P. Demeschkin, E. L. Radyukova
Donbas National Academy of Civil Engineering and Architecture
Abstract: Sorption of organic binders components on the surface of the mineral powder is difficult due to its hydrophilicity and the presence of air bubbles in deep grooves and capillaries, which prevent tight contact between the organic binder and the surface of the mineral powder and are potential foci of destruction. It is shown that the modification of the surface of a mineral powder with solutions of oligomers, polymers containing functional groups CO, COOH, NH2, NО2, for example, epoxy or urea-formaldehyde resins, polymer-containing wastes from the production of epoxy resins, will effectively regulate the adhesive-cohesive properties of tar and bitumen-polymer binder. A structurally hardened layer of an oligomer or polymer to increase the adhesion of a tar or bitumen-polymer binder to the surface of an activated mineral powder due to an increase in the contacts of segments of plasticized supramolecular formations of the polymer (polyvinyl chloride, polystyrene, polymer-containing wastes from the production of epoxy resins, etc.) with active centers of olives, diffuse centers, olives layer of oligomer, polymer and catenan-like structures.
Keywords: tar-, bitumen-polymer binders, surface-activated with oligomer or polymer containing functional groups, mineral powder, tar-, asphalt-polymer concrete of increased durability.
Pages: 5-14.
Link for citation: Bratchun, V. I.; Bespalov, V. A.; Narygnaya, O. N. [et al.]. About the Appropriateness of the Activation of the Surface of a Mineral Concrete Powder on Organic Binders with Oligomers and Polymers. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2021. – Issue 2021-1(147) Modern building materials. – Р. 5-14. – URL: https://donnasa.ru/publish_house/journals/vestnik/2021/2021-1(147)/st_01_bratchun_bespalov_narygnaya_demeschkin_radyukova.pdf (date of access: 15.10.2024). (in Russian)
Issue 2021-1 (147)Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture