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A comparison of bitumen/mastic fatigue data from different test methods



Title: A comparison of bitumen/mastic fatigue data from different test methods
Author(s): G. D. Airey, N. H. Thom, S. Osman, H. Huang, A. C. Collop
Paper category : conference
Book title: Fifth International RILEM Conference on Reflective Cracking in Pavements
Editor(s): C. Petit, I.L. Al-Qadi and A. Millien
Print-ISBN: 2-912143-47-0
e-ISBN: 2912143764
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 383 - 390
Total Pages: 8
Nb references: 12
Language: English


Abstract: This paper describes a comparison of the fatigue performance of a 50 penetration grade bitumen and a bitumen-filler mastic determined using oscillatory shear loading and direct uniaxial tension-compression loading. The oscillatory shear test has been performed by means of a dynamic shear rheometer (DSR) using both controlled strain and stress loading modes. The uniaxial tests have consisted of two testing geometries, namely a conventional cylindrical arrangement and a hemi-spherical configuration. Fatigue relationships versus initial stress level have been produced for both the binder and mastic using the DSR and the two uniaxial tests. However, there is a large difference in the slopes of the best-fit lines between those obtained for the DSR fatigue and those for the conventional and hemi-spherical platen uniaxial tests. In addition the uniaxial fatigue test shows a considerable difference between the results for pure bitumen and those for the bitumen/filler mixture whereas the DSR fatigue test does not.


Online publication: 2004-04-15
Publication type : full_text
Public price (Euros): 0.00