@article{MAKHILLRJAS201510129723, title = {Impact of the Group Content on the Properties of Bitumen of Different Grades}, journal = {Research Journal of Applied Sciences}, volume = {10}, number = {12}, pages = {917-921}, year = {2015}, issn = {1815-932x}, doi = {rjasci.2015.917.921}, url = {https://makhillpublications.co/view-article.php?issn=1815-932x&doi=rjasci.2015.917.921}, author = {A.I.,S.M.,R.R.,D.A.,L.R. and}, keywords = {Bitumen,physical-chemical properties,SARA-analysis,contrast,chemical}, abstract = {In this study, the group composition of different grades of bitumen was studied by SARA-analysis. Also, the physical and chemical properties and the test properties of studied bitumen were examined. The conclusions on the effect of group composition of bitumen on their physical-chemical and performance properties were presented. According to the analysis of obtained data, we may conclude about close relationship of bitumen chemical composition with its physical-chemical and operational performance. Comparing the physicochemical properties of the studied bitumen with the requirements of the relevant regulatory documents, it is expected to improve the low-temperature and adhesion-strength properties. This is due to a large concentration of hydrocarbon paraffin concentration in bitumen, the presence of which is clearly pronounced in the composition. The reason for such a “contrast” content of heavy resins with pyrobitumen and with lower molecular paraffinic-naphthenic hydrocarbons is the small number of intermediate compounds such as average molecular aromatic hydrocarbons.} }