Fatigue resistance: is it possible having a unique responseReport as inadecuate

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1 UON - University of Nottingham, UK 2 University of Palermo 3 IFSTTAR-MAT - Département Matériaux

Abstract : The mechanical characterisation of the asphalt concrete in terms of both the fatigue resistance and the stiffness modulus is necessary to use any design method of the flexible road pavements. Different kinds of test are usually used in experimental work such as bending tests, uniaxial tests, etc., but sometimes they do not give the same answer. In this paper mechanical characterization was carried out by means of fatigue tests undertaken with two most used testing machines for asphalt material: two point bending 2PB test at IFSTTAR in Nantes France and four point bending 4PB test at University of Palermo, in Palermo Italy. Different strain controlled tests were been undertaken for the same material under the same loading conditions, frequency and temperature 15 Hz and 20˚C, according to the European standard 12697 part 24 and 26. The first results of this interlaboratory activity are showed in this paper.


Author: C Maggiore - G Airey - G Di Mino - P Marsac - M Di Liberto -

Source: https://hal.archives-ouvertes.fr/


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