An energy-based geometric aggregate packing parameter for asphalt concrete mixtures

Henrique M Reis, Amin K. Habboub, Samuel H. Carpenter

Research output: Contribution to journalArticle

Abstract

Based upon the energy dissipation characteristics of asphalt concrete mixtures, a non-destructive testing parameter is presented which evaluates the relative efficiency of energy dissipation in the early and late times of a transient impulse response. This non-destructive testing parameter is derived using principles of statistical energy analyses, diffuse sound fields, and an analogy to solid media of the Schroeder's fields of reverberant enclosures. It was observed that none of the commonly used single aggregate parameters correlates well with this energy-based non-destructive testing parameter, which may help explain why typically used single aggregate parameters in general may not suffice in the evaluation/ characterisation of many energy-related intrinsic material processes. Corresponding to the proposed energy-based parameter, new geometric aggregate packing parameters are also proposed, including one that is a modification of the Abram's fineness modulus.

Original languageEnglish (US)
Pages (from-to)650-656
Number of pages7
JournalInsight: Non-Destructive Testing and Condition Monitoring
Volume41
Issue number10
StatePublished - Oct 1 1999

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ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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