Rheology and structure of mixtures of road tar and bitumen

Autor: L. J. Wood, K. Berneis
Rok vydání: 2007
Předmět:
Zdroj: Journal of Applied Chemistry. 12:160-164
ISSN: 1934-998X
0021-8871
Popis: Discontinuities previously observed in the softening point and insoluble matter curves of tar-bitumen systems have been investigated by carrying out a number of flow tests and viscosity measurements over a wide temperature range. The results provide evidence that stable mixtures comprising up to 60% bitumen are thixotropic at and below the softening temperature, due possibly to a marked association of certain tar components. With bitumen in greater excess the higher-molecular-weight hydrocarbons and oxygen-containing compounds of the tar are pepsised by the bitumen. It is suggested that phase inversion occurs at a composition of about 50% by volume of each component.
Databáze: OpenAIRE