Rheological characterization of asphalt in a temperature-gradient combinatorial squeeze-flow setup

Yatin P. Patil, Antonio Senador, Patrick T. Mather, Montgomery T. Shaw

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

A new technique for parallel rheological characterization of asphalt in a combinatorial squeeze-flow array is described. The basis of the technique is a device that is capable of subjecting multiple samples simultaneously to constant volume (Type B) squeeze flow with application of a temperature gradient. The time-dependent sample dimensions, which are calculated from digital images taken through the transparent top plate, are used to derive the flow curves. The results obtained using the combinatorial setup compared favorably with those obtained using conventional parallel-plate torsional flow in a commercial rheometer. With the existing setup, the accessible shear rate range is limited to about one decade at a single temperature.

Original languageEnglish (US)
Pages (from-to)1075-1082
Number of pages8
JournalRheologica Acta
Volume46
Issue number8
DOIs
StatePublished - Oct 2007
Externally publishedYes

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Keywords

  • Asphalt
  • Combination rheometer
  • Squeez eflow

ASJC Scopus subject areas

  • Mechanics of Materials
  • Computational Mechanics

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