Regulation of Bitumen Properties by Two-Stage Omdation

Oxidation of paraffinic tar in two stages at different temperatures is proposed for regulating the physicochemical properties of the oxidized bitumens. The oxidation temperature is shown to be one of the decisive factors in forming an oxidized bitumen product with a hydrocarbon group composition tha...

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Bibliographic Details
Published in:Chemistry and technology of fuels and oils 2018-09, Vol.54 (4), p.387-393
Main Authors: Evdokimova, N. G., Luneva, N. N., Egorova, N. A., Ivanova, A. V., Makhmutova, A. R.
Format: Article
Language:English
Subjects:
Bitumens
Bituminous materials
Chemistry
Chemistry and Materials Science
Dependence
Geotechnical Engineering & Applied Earth Sciences
Industrial Chemistry/Chemical Engineering
Mechanical properties
Mineral Resources
Oxidation
Properties (attributes)
Technologies
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Summary:Oxidation of paraffinic tar in two stages at different temperatures is proposed for regulating the physicochemical properties of the oxidized bitumens. The oxidation temperature is shown to be one of the decisive factors in forming an oxidized bitumen product with a hydrocarbon group composition that conforms to state standard requirements. The adhesion indicator, thermal oxidative properties, and cohesive strength of the bitumens can be improved by adjusting the first- and second-stage oxidation temperatures. The dependence between the adhesion indicator and maximal tensile strength is used for a preliminary estimate of the adhesive properties of oxidized bitumens produced by two-stage oxidation of the studied feedstock.
ISSN:0009-3092
1573-8310
DOI:10.1007/s10553-018-0937-4