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Road infrastructure is a vital system that has a direct influence on economy of states. In this regard, there is a direct relationship between the coating conditions of automobile roads and the countryпїЅs industrial development. This dynamic increases intensity and traffic congestion constantly. Thereby, it is necessary to eliminate the damages and increase the exploitation time of road coatings. This concerns mostly asphalt - concrete pavements which form the basis of automobile road networks in countries. Based...

Extra-heavy oil is considered as one of alternative energy sources mainly because of reserve potentials, rich in organic compounds and rare transition metals like V and Ni. Extraction from this hydrocarbon resource has always been a challenge due to high oil viscosity and as a result low mobility within porous media. Conventionally the production from extra-heavy oil reservoirs is achieved by thermal methods such as SAGD, CSS, Insitu combustion, etc. However, these techniques do not consider the post productionsпї...

Changes in group chemical composition in the modification processes are not dependent just on physical and chemical characteristics of bitumen, but rather on structural features of raw material composition and its modification products. The investigation of bitumen is difficult due to formation of paraffinic, naphthenic and aromatic group combinations. The result of modification is bitumen transformation, and this phenomenon is observed by quantitative change in structural fragment content. One of the most informa...