Journal Published Online: 07 October 2014
Volume 43, Issue 2

Poisson's Ratio of Hot Asphalt Mixtures Determined by Relaxation and Small Amplitude Oscillation Test

CODEN: JTEVAB

Abstract

One of the basic material characteristics of solids is Poisson's ratio. Its exact knowledge, including its dependence on time, allows us to model the effect of load, with given boundary conditions, on the behavior of material under consideration. Poisson's ratio, or rather the relationship between the longitudinal and transverse strain, has an important implication in engineering mechanical applications (assessment of pavement structure performance). Nowadays, Poisson's ratio is usually used as a constant, based on an incorrect assumption that a hot asphalt mix is a linear elastic material. This paper reports Poisson's ratio as a function of time determined from the relaxation and small amplitude oscillation tests on cylindrical specimens. A hot asphalt mix is considered homogeneous isotropic material and linear theory of viscoelasticity is applied for the experimental determination of the lateral contraction ratio.

Author Information

Zak, Josef
Department of Road Structures, CTU in Prague, Prague, CZ
Stastna, Jiri
Department of Civil Engineering, Schulich School of Engineering, Univ. of Calgary, Calgary, Alberta, CA
Vavricka, Jiri
Department of Road Structures, CTU in Prague, Prague, CZ
Milackova, Kristyna
Department of Road Structures, CTU in Prague, Prague, CZ
Kasek, Lukas
Department of Road Structures, CTU in Prague, Prague, CZ
Zanzotto, Ludo
Department of Civil Engineering, Schulich School of Engineering, Univ. of Calgary, Calgary, Alberta, CA
Pages: 7
Price: $25.00
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Details
Stock #: JTE20130325
ISSN: 0090-3973
DOI: 10.1520/JTE20130325