Abstract
Phenol-cresol-formaldehyde resins (PhCR-F) were obtained via polycondensation of a mixture of phenols (“raw” phenols) obtained from the phenolic fraction of coal tar. PhCR-F was found to be effectively used as a modifier of road bitumen. The obtained resins were compared with industrial phenol-formaldehyde resin, the raw material of which is synthetic (pure) phenol. The possibility of using the obtained resins as modifiers of road petroleum bitumen has been established, especially as adhesive promoters to bitumen. It is shown that the addition of these resins significantly increases the adhesion to the surface of granite rubble and glass. The results of IR spectroscopy analysis are presented. The change in the composition and properties of the bitumen modified with PhCR-F has been described.
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