Rheology and structure of mixtures of road tar and bitumen
Autor: | L. J. Wood, K. Berneis |
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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 |
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