Rheological properties of asphalt crossblends

Journal Article · Tue Dec 31 04:00:00 EST 1996 · Preprints of Papers, American Chemical Society, Division of Fuel Chemistry

OSTI ID:430348

Branthaver, J F; Salmans, S L ^[1]

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1. Western Research Institute, Laramie, WY (United States)

Properties of blends of asphalts from different sources can not necessarily be predicted by averaging properties of the components. Asphalts may be considered to be combinations of a dispersed and a solvent moiety, the nature and amounts of which vary among asphalts. Asphalt properties will be determined by the manner in which the two moieties interact. In this work, dispersed and solvent moieties were generated from eight asphalts by size exclusion chromatography. Crossblended mixtures of dispersed and solvent moieties from different asphalts were prepared and their theological properties measured. The influence of the relative amounts and nature of the two moieties on theological properties were determined. It was found that theological properties of the crossblended mixtures were greatly affected by the relative amounts of the two moieties. The nature of the two moieties also was influential in determining theological properties, as the solvent components of some asphalts were found to be compatible with the dispersed moieties of some asphalts but incompatible with others.

• OSTI ID: 430348
• Report Number(s): CONF-960807--
• Journal Information: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry, Journal Name: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry Journal Issue: 4 Vol. 41; ISSN 0569-3772; ISSN ACFPAI
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
36 MATERIALS SCIENCE
ASPHALTS
CHROMATOGRAPHY
MECHANICAL PROPERTIES
MIXTURES
PETROLEUM PRODUCTS
PRECURSOR
RHEOLOGY
SOLVENTS