Investigation of resistance of modified bitumines to technological aging

A comparison of the ability modifiers different classes to slow down aging processes occurring in petroleum bitumen during pavement operation is presented article. Oxidized and residual road bitumens were used as research objects. Determination resistance hardening under influence heat air was performed by RTFOT method. Samples oxidized with addition polymer resins hydroxyl functional groups heavy pyrolysis resin found have best resistance, while for highest observed introduction sulfur.