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Properties of bituminous mixtures at low temperatures and relations with binder characteristics



Title: Properties of bituminous mixtures at low temperatures and relations with binder characteristics
Author(s): F. Olard, H. Di Benedetto, A. Dony, J.-C. Vaniscote
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 275
Issue date: 2005-01-01
Publication year: 2005
Pages: 121 - 126
Total Pages: 6
Nb references: 6
Language: English


Abstract: Within the framework of a partnership between the “Département Génie Civil et Bâtiment” of the ENTPE, Eurovia and Appia, a research work including a large experimental campaign on the thermomechanical behavior of bituminous materials at low temperatures is proposed.
The aim is to establish the links between the characteristics of the binder and the properties of bituminous mixes at low temperatures.
Four different bitumens have been used with one type of aggregate and grading.
The low temperature behavior of binders was evaluated with three fundamental tests: the complex modulus determination, the Bending Beam Rheometer and the tensile strength at a constant strain rate and constant temperatures.
The thermomechanical behavior of bituminous mixes has been studied by performing complex modulus tests, measurements of the coefficient of thermal dilatation and contraction, tensile tests at constant temperatures and strain rates, and Thermal Stress Restrained Specimen Tests.
The results are analyzed considering a rational approach.
Some pertinent links between binders and mixes properties are established.
Characteristics which are pertinent and discriminating enough with regard to the thermal cracking of bituminous mixes at low temperatures are presented.


Online publication: 2004-12-23
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14132


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