Methods for Increasing the Durability of Road Crushed Stone-Mastic Asphalt Concrete by Complex Modification of the Structure of Crushed Stone-Mastic Asphalt Concrete
Abstract: The compositions and technologies of production, laying and compaction of crushed stone-mastic asphalt concrete mixtures are considered. It is shown that an effective way to improve the quality and durability of crushed stone-mastic asphalt concrete mixtures is the complex modification of the organic binder with a complex additive consisting of butadiene-methylstyrene rubber and technical sulfur, as well as finishing the surface of mineral materials of crushed stone-mastic asphalt concrete with Butonal NS198 divinyl-styrene rubber latex. Theoretical and methodological provisions for the formation of the structure of a complex-modified crushed stone-mastic asphalt concrete mixture, characterized by a wide temperature range of compactibility, are formulated. This is achieved with an optimal quantitative ratio between micro-, meso- and macrostructures, namely, when designing durable SMA, it is necessary to create a stable frame, deformation-relaxing asphalt-polymer binder with high adhesive-cohesive properties, and the volume of residual pores in SMA should be minimal.
Keywords: complex-modified crushed-stone-mastic asphalt concrete, composition, structure, properties.
Pages: 85-90.
For citation: Satkoyeva, A. M. Methods for Increasing the Durability of Road Crushed Stone-Mastic Asphalt Concrete by Complex Modification of the Structure of Crushed Stone-Mastic Asphalt Concrete. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2022. – Issue 2022-1(153) Modern building materials. – Р. 85-90. – URL: https://donnasa.ru/publish_house/journals/vestnik/2022/2022-1(153)/st_11_satkoeva.pdf (date of access: 19.11.2024). – ISSN 2519-2817.
Issue 2022-1 (153)
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