Extended numerical modeling and application of the coaxial shear test for asphalt pavements

Title: Extended numerical modeling and application of the coaxial shear test for asphalt pavements
Author(s): K. Sokolov, R. Gubler, M. N. Partl
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 279
Issue date: 2005-06-01
Publication year: 2005
Pages: 515 - 522
Total Pages: 8
Nb references: 9
Language: English

Abstract: Coaxial Shear Test (CAST) is used at EMPA road engineering center for determining the mechanical properties of asphalt concrete under repeated sinusoidal loading in both load and strain controlled mode at different temperatures and frequencies.
CAST provides stiffness information under lateral deformation confinement, thus simulating the situation in a pavement layer under an idealized traffic loading.
In order to understand the complex behavior of the system, Finite Element Analysis (FEA) of the complete test setup was carried out.
The details of the FEA model as well as the data analysis procedure are described.
New types of experiments, carried out with the CAST equipment, such as the determination of the water sensitivity under combined cyclic mechanical and temperature loading, are described.
The distinctive features of the implementation and evaluation of the mechanical properties from experiments are discussed.

Online publication: 2005-04-12
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14315