MODIFICATION OF BITUMENS WITH OIL INDUSTRY WASTE

Abstract

Introduction. A literature review on the topic of the study has shown that there is not
much work with the use of oily waste in the modification of bitumen. Many methods of bitumen
modification include the oxidation of a heavy oil residue to obtain the target product and its further
compounding with the finished bitumen. Old oil sludge from oil sludge storage tanks has been used as the
oil residue. Oil sludge is prepared by dehydration, the water content should not exceed no more than 5 wt.
% and separation of mechanical impurities up to a content of not more than 16.4 wt. %. Purpose of the
work. The main objective of the study is to develop a technology for modifying oil bitumen with industrial
waste for the disposal of oil sludge, and to show the possibility of improving the physical-chemical,
rheological characteristics of modified bitumen. Results. In the process of bitumen modification, the
physical-chemical characteristics of the modified bitumen have been studied. It has been established that
the composition of oil sludge from the Uzen and Zhetybai oilfield of the Mangistau region contains a
significant amount of heavy oil residues and a small amount of mechanical impurities. From the
conducted laboratory esearch, it has been found that oil sludge can be used as a filler in the modification
of bitumen. Conclusion. Used oil sludge can be used as a bituminous base modifier without removing the
mechanical impurities. Polymer-bitumen compositions have been prepared and the optimal parameters for
the process of preparing polymer-bitumen binders have been determined.