Viscoelastic properties of asphalt concrete using micromechanical self-consistent model

• Autorzy: Alam S. Y. , Hammoum F.

Identyfikatory

DOI

10.1016/j.acme.2014.02.005

• Języki publikacji: EN

Abstrakty

EN

The mechanical properties of Hot Mix Asphalt (HMA) mixes are often characterized by its viscoelastic behavior. Viscoelasticity coupled with the thermo-mechanical nature of asphalt offers time-temperature dependence to the mechanical properties of HMA mixes. Also, the wide range of distribution of particles, and several orders of magnitude of differences in the mechanical properties between constituents cause a wide range of stress and strain distribution within the microstructure. In this paper, micromechanical modeling has been performed to study the relationship between individual material properties, their interaction within the microstructure, and the macroscopic properties of HMA mix. The analytical model based on N phase self-consistent scheme allows calculating the complex modulus and phase angle of HMA mixes from the mechanical properties of its constituents and designed mix data. In the mix microstructure, aggregates and sand are classified using simple sieve analysis test. Asphalt and sand mastic film thicknesses around the aggregates are calculated for each class and introduced into the model.

Słowa kluczowe

EN

hot mix asphalt; self-consistent model; micromechanical model; viscoelastic properties

PL

mieszanka asfaltowa; właściwości lepkosprężyste; analiza sitowa

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2015
• Tom: Vol. 15, no. 1
• Strony: 272--285
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Alam S. Y.

• National University of Computer and Emerging Sciences, Department of Civil Engineering, Lahore, Pakistan

autor

Hammoum F.

• Laboratoire Centrale des Ponts et Chaussées (LCPC) Centre de Nantes, Division Matériaux et structures des chaussées Route de Bouaye, BP 4129, 44341 Bouguenais Cedex, France

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