COMPLEXMODIFIED ROAD ASPHALTIC STEELS OF INCREASEDDURABILITY
The physical and mechanical properties of complex-modified ethylene glycidylacrylate hot asphalt concrete containing surface-activated 0,7% by weight of ethylene glycidylacrylate mineral materials (crushed stone, sand, mineral powder in fine-grained asphalt concrete type B) and modified petroleum road bitumen (2% wt. ethylene glycidylacrylate together with 0,2% wt. polyphosphoric acid) have been determined and investigated. The asphalt polymer concrete modified holistically by ethylene glycol acrylate is characterized by Marshall resistance, Р = 30 kH; higher resistance to rutting formation, 23…36 % less than unmodified asphalt concrete; water resistance after 90 days of water saturation is Kws = 0,91; the frost resistance coefficient after 100 cycles is F = 0,88, the coefficient of heat aging after 2000 hours (the temperature of heating is 75°C under UV irradiation) is Kag = 1,2.