Evaluation of empirical and theoretical models to determine asphalt mixture stiffnesses at low temperatures

William G Buttlar, Reynaldo Roque

Research output: Contribution to journalConference articlepeer-review

Abstract

A study is conducted with the aim to illustrate the relationship between binder and mixture stiffness measure at low temperatures in the log-log domain and to discuss the factors which influence the relationship. Selected empirical and theoretical binder-to-mixture stiffness relationship, including the one used in SHRP SUPERPAVE, is reviewed and the low-temperature mixture creep stiffnesses predicted by these models are compared to those obtained with the indirect tensile test at low temperatures. The suitability of existing binder-to-mixture stiffness model is assessed to develop alternate models. Single-function models are shown to lead to poor temperature shift factors and poor performance prediction or mixtures exhibiting discontinuous log-log stiffness behavior.

Original languageEnglish (US)
Pages (from-to)99-141
Number of pages43
JournalAsphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions
Volume65
StatePublished - Dec 1 1996
EventProceedings of the 1996 Conference of the Association of Asphalt Paving Technologies: Asphalt Paving Technology - Baltimore, MD, USA
Duration: Mar 18 1996Mar 20 1996

ASJC Scopus subject areas

  • Civil and Structural Engineering

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