SYMPOSIA PAPER Published: 01 January 1977
STP27092S

The Influence of Intermolecular Interactions on Viscosities at Low Temperatures: Forced-Sphere and Forced-Cylinder Viscometers

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The viscosity of asphalt was found to be dependent upon its thermal history. Asphalt thermally dissociated at 250°C had a lower viscosity than asphalt that had been allowed to associate at 130°C. Viscosities were obtained by forcing a sphere or cylinder (wire) through the asphalt. Temperature range investigated was from 25 to −12°C. Asphalt was examined both as a Newtonian and as a viscoelastic material.

Author Information

Ensley, EK
Laramie Energy Research Center, Energy Research and Development Administration, Laramie, Wyo., 82071
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Details
Developed by Committee: D04
Pages: 43–56
DOI: 10.1520/STP27092S
ISBN-EB: 978-0-8031-4701-0
ISBN-13: 978-0-8031-0194-4