Fatigue resistance: is it possible having a unique response?

Gaetano Di Mino, Ciro Maurizio Di Liberto, Maggiore, Marsac, Gordon Airey, Collop

Risultato della ricerca: Other

1 Citazioni (Scopus)

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 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.
Lingua originaleEnglish
Pagine239-249
Numero di pagine11
Stato di pubblicazionePublished - 2012

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