Influence of butadiene-styrene thermal elastoplaste for operating characteristics of road bitumens

The influence of thermoplastic polymers DST - 30 - 01 on the performance characteristics of road bitumen BND 60/90 of a mixture of West Siberian oils obtained in LLC “Gazprom neftekhim Salavat”. The comparative characteristic of modified bitumen with GOST 22245-90 is given. Modified bitumens have been obtained which are more thermostable and have increased heat resistance. The influence of the additive on the physic-chemical properties of the modified bitumens obtained is studied. The best concentration of the additive in bitumen is determined.