Siberian scientists offer polymer techniques to enhance bituminous coats

Siberian scientists offer polymer techniques to enhance bituminous coatsScientists from Irkutsk State Technical University in Siberia have developed a polymer-based powder to improve the properties of bituminous coats in construction.

Irkutsk State Technical University (ISTU) in Siberia announced earlier this week that its scientists have developed a polymer-based powder to improve the properties of bituminous coats in construction. The new additive is expected to enhance the durability and freeze resistance of bituminous coats, as well as their resistance to temperature drops. Researchers at ISTU?s Institute of Architecture and Construction who have come up with the new powder believe their product is an alternative to expensive polymer-bituminous binders that exist today. ?Bitumen?s high level of viscosity and a low speed of a polymer?s dissolution in a conventional binder is a serious problem. We offer a brand new method of distributing polymers in asphalt concrete, in which a polymer is reduced to fine particles and covers the surface of a mineral powder. Using the modified powder to make hot asphalt concrete causes the polymer to dissolve in bitumen,? explained Yulia Saltanova, a new material developer. Bitumen-dissolvable polymers typically show poor adhesion to rock materials. The Irkutsk scientists therefore decided to use carbon nanoparticles which are said to effectively interact with the molecules of both polymers and the surfaces of mineral fillers...