Chemically stabilized rubber bitumens

It was proven that blending bitumen with crumb rubber, which is produced from scrap tires, is not just a waste treating method, but an excellent solution to improve the performance of asphalt pavements compared to roads made of conventional bitumen. The application of rubber bitumen is most widely spread in the US, where the production of the rubber modified binder is in situ, close to the road construction.

The Cooperative Research Center of the University of Pannonia together with the MOL Group developed a new, patented production method, which is capable of the production of chemically stabilized rubber bitumen
(CSRB) in existing, refinery bitumen modifier units (normally production of rubber bitumen would need special equipments).
The results gained so far from test runs and road constructions attract the attention to the fact that the appearance of a binder of such quality on the domestic market shows not only economical benefits, but can contribute to the improvement of the road system. Governmental promotion of the CSRB usage in road construction similarly to the Portugal example would be a favourable way to profit at national level from the recycling of the waste tires and the longer life cycle of the higher quality roads.

András Geiger, Péter Gergó, Prof. László Bartha