In Irkutsk have developed a nano-additive for coatings based on bitumen

If I understand correctly, it is to some extent the development of the topic here:http://sdelanounas.ru/blogs/16782/ 

Powder polymer-based lab, scientists have developed innovative building and road materials Irkutsk Technical University. The modified nanoparticles of carbon additive can improve the performance of bituminous coatings, including durability, frost resistance and resistance to temperature extremes.

The Institute of Architecture and Construction IrGTU the product is considered an alternative to expensive polymer modified binder. They are a significant rise as compared with conventional bitumen occurs not only due to the high resin cost. It is due to the difficulty of the process of uniform distribution of the polymer molecules in the bitumen.

"The problem is the high viscosity of the bitumen and the slow rate of dissolution of polymer. We offer a special way of distribution of the polymer in the asphalt concrete in which it is finely ground and covers the surface of the mineral powder. In the production of hot asphalt using a modified polymer powder is dissolved in the bitumen, "- said the developer material Julia Saltanova. 

Finely chop the polymer and secure it to the surface of the mineral material is difficult because of the strong plasticity. Furthermore, polymers bitumorastvorimyh poor adhesion to masonry materials. In this regard, it was decided to use carbon nanoparticles, which are molecular entities with unique properties. They effectively interacts with both the polymer and the surface of mineral fillers.

The modified nanoparticles and polymer powders produced by mechano-chemical processing of dolomite, polymer and carbon nanoparticles. As the nanoparticles used product dry removal of the silicon plant. During the experiments, the scientists were convinced that the best effect can be achieved by soaking the polymer in the industrial oil. As the plasticizer, the developers have used IrGTU waste production, not industrial oil, which halves the cost of the product.

According to the developers, the estimated cost of mineral supplements on the market will be about 7,000 rubles per ton. An additional advantage of a mineral additive to polymer modified binders is an unlimited shelf life. Polymer modified binders (PBB) can not be stored for more than ten hours in a heated condition, since there is degradation of the polymer binder and the bundle. If it is delivered to the production facility in the cold, it was only on his warm-up spent about a day. Thus WSP desirable to produce and use for several hours, and bitumen boilers must be equipped with a very efficient binder system mixing.

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