Complex-modified road asphalt-concrete enhanced durability

Based on the methodology of a systematic analysis of the proposed physicochemical models of modified asphalt binders and asphalt concrete using an experimental-statistical description, new scientifically-based technological solutions have been developed and implemented for the production of complex-modified hot and crushed stone mastic asphalt mixtures for coating non-rigid road clothes of roads increased durability, able to withstand rutting, fatigue failure, fracture toughness and thermal oxidation as a result of complex modification of petroleum road bitumen with ethylene glycidyl acrylate Elwala AM with a catalyst for structuring supramolecular formations of high molecular substances - polyphosphoric acid PFK-105 and formation of spatial and polymer nodes in a bit network flexible chains of macromolecules and supramolecular formations with simultaneous surface activation by mineral oligomers materials of asphalt mixtures. Technologies have been developed that ensure environmental protection and low energy intensity of the production, laying and compaction of complex - modified asphalt mixtures using technogenic raw materials. Recommendations for the production and use of modified asphalt concrete with increased fatigue life have been developed for PJSC Obldorremstroy. For the Donetsk association, the oblavtodor of the Ukravtodor corporation, “Recommendations on the production of asphalt mixes modified with ethylene glycidyl acrylate in combination with polyphosphoric acid PFK-105” have been developed. At the asphalt concrete plant of the Novoazovskiy rayavtodor of the Donetsk association “Oblavtodor” 350 tons of asphalt-polymer-concrete mixes were prepared, which contain bitumen modified with 2.5% ethylene glycidyl acrylate and 0.2% PFK-105.