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  4. Thermomechanical and mechanical behaviour of asphalt mixtures at cold temperature. Road and laboratory investigations
 
research article

Thermomechanical and mechanical behaviour of asphalt mixtures at cold temperature. Road and laboratory investigations

Pucci, T.
•
Dumont, A.-G.  
•
Di Benedetto, H.
2004
International Journal of Road Materials and Pavement Design

Temperature variations are particularly harmful to wearing courses with asphalt mixture. During wintertime, and especially, at very low temperatures, a surface cracking may appear and propagate more or less rapidly. An experimental investigation has been carried out on specimens of bituminous mixtures cored in the wearing course of 16 test sections of a motorway in Switzerland. These 16 wearing courses are composed with 16 different bitumen as pure bitumen, polymer modified bitumen and bitumen with additives. Those selected bitumen give a representation of the bitumen market in the 80's in Switzerland. 8 years after construction, bituminous mixtures specimens were cored in the driving carriageway and in the "emergency lane", which is not driving Their thermomechanical behaviour through the Tensile Stress Restrained Specimens Test (TSRST), and their mechanical behaviour when subjected to mechanical load through a new highly precise Direct Tensile Test (DTT) were assessed. Significative behaviour, which was depending on the origin of the specimens (carriageway or emergency lane) were observed through the TSRST. In addition, this paper provides a relevant approach procedure for investigating thermal cracking at low temperature with a highly precise DTT.

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Type
research article
DOI
10.3166/rmpd.5.45-72
Author(s)
Pucci, T.
•
Dumont, A.-G.  
•
Di Benedetto, H.
Date Issued

2004

Published in
International Journal of Road Materials and Pavement Design
Volume

5/1

Start page

45

End page

72

Subjects

Fissuration thermique

•

Fatigue

•

Bitume

•

Asphalt mixture test

•

Termomechanical-coupling

•

Low temperature

•

Thermal solicitations

•

Cracking

•

Thermal Stress Restrained Specimens Test

•

Direct Tensile Test

URL

URL

http://www.ijrmpd.com/
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LAVOC  
Available on Infoscience
January 17, 2008
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/16327
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