Three‐dimensional analysis of fatigue tests on bituminous mixtures

Abstract

A tension–compression test on cylindrical specimens was used to study the three‐dimensional behaviour of bituminous mixtures during fatigue tests. The tests were carried out at 10 °C, 10 Hz at constant strain amplitude mode. The axial strain, radial strain and axial stress were measured using a prototype apparatus developed at the University of Lyon/“Ecole Nationale des TPE” (ENTPE). In addition to axial stress and strain analysis, the measurements of the radial strain made it possible to obtain the complex Poisson ratio and the volumetric strains during the tests. The results showed good correlations between the volumetric strains and global damage. The effects of the change of temperature due to viscous dissipation on the volumetric strain and on the complex modulus were also analysed.

Investigation of fatigue and fracture properties of asphalt mixtures modified with carbon nanotubes

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Fatigue and Thermal Cracking of Hot and Warm Bituminous Mixtures with Different RAP Contents

“…As already stated for the fatigue tests, these types of curves bring information on multidirectional behaviour. It is not proposed in the literature and was introduced by the ENTPE team [50]. It reveals that radial strains in directions II and III increase (corresponding to a contraction of the sample) and remain close all over the test.…”

M&S highlight: Di Benedetto et al. (2004), Fatigue of bituminous mixtures

“…Concepts and theses presented by the authors have initiated a wide range of research projects and technical committees in this area that affect our work in this field up until now (e.g. [2][3][4][5][6][7][8][9][10] and will continue to do so for decades to come.…”