adhesion additive

The article examines the effect of Ukrainian-produced petroleum road bitumen BND 70/100 from Kremenchuk Oil Refinery modified separately with polymers, synthetic waxes, and adhesion additives on dense asphalt concrete type A, grade 1. Nine additives were studied: polymers (Calprene 501, PDL S501T SBS, Elvaloy 741, Kraton D1101 ASM), waxes (Asphalten A, Asphalten B, Sasobit) and adhesion agents (AdHebit LA-1245, Wetfix BE). Tests determined water saturation, density, compressive strength, deformation (0, 20, 50 °C), and Marshall properties at 60 °C.

The possibility of utilizing solid carbonized residue (CR) obtained in the pyrolysis of waste automobile tires (WT) was analyzed. On average, as a result of WT pyrolysis, about 36 wt. % of carbonized residue is obtained, which can serve as an adhesion additive and/or aging inhibitor in modifying petroleum bitumen. The CR obtained at a small-tonnage industrial plant and bitumen of the BND 70/100 brand produced by PJSC "Ukrtatnafta" were analyzed.