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Research & Development in Material Science

Creep and Fatigue Performance of Partial Vapor Conditioned Asphalt Binder

  • Open or Close Mohammad Hossain1*, A S M Atiqur Rahim Khan2, Hasan Faisal3 and Rafiqul Tarefdar3

    1Department of Civil Engineering and Construction, Bradley University, USA

    2Department of Mechanical Engineering, Bradley University, USA

    3Department of Civil Engineering, The University of New Mexico, USA

    *Corresponding author: Mohammad Hossain, Department of Civil Engineering and Construction, Assistant Professor, Bradley University, 1501 W Bradley Ave, Peoria, IL-61625, USA

Submission: February 13, 2018;Published: April 25, 2018

DOI: 10.31031/RDMS.2018.05.000620

ISSN: 2576-8840
Volume5 Issue4


Films of asphalt binders were prepared and partially vapor-conditioned in enclosed chambers at 25% Relative Humidity (RH), 49%RH, and 71%RH. Creep nanoindentation tests were performed on the partial vapor-conditioned asphalt film samples. The creep nanoindentation data were fitted using Burgers model. The Burgers model showed that the elasticity of the asphalt binder increases and viscosity decreases with the increase of RH%. Creep nanoindentation test data is used to understand fatigue performance of asphalt binder at the partial vapor conditioned situation. Finite Element Method (FEM) models are developed to examine the fatigue performance of the asphalt binder. Simulations are run using the spring and dashpot elements of Burgers model as the FEM inputs. Fatigue simulation indicates that an increase in binder viscosity would reduce permanent deformation in the asphalt binder.

Keywords: Asphalt; Creep; Fatigue; Nanoindentation; Vapor; Viscoelastic

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