The use of direct tension tests for the assessment of low temperature properties of bituminous binders

Title: The use of direct tension tests for the assessment of low temperature properties of bituminous binders
Author(s): S. Largeaud, H. Raffegeau, B. Simaillaud, B. Eckmann, E. Sauger, G. Ollier, S. Hervé, J. Wendling
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 37
Issue: 269
Issue date: 2004-06-01
Publication year: 2004
Pages: 351 - 355
Total Pages: 5
Nb references: 4
Language: English

Abstract: The rheology of concrete is influenced by water content, the amount, size and size distribution of all the solid components as well as by the dispersion of the finer particles through the addition of superplasticizers.
In addition, the rheological behaviour over time evolves as a result of cement hydration.
Consequently the a-priori prediction of concrete rheology is a complex task.
In this article, models that have been and are being developed to achieve this task are discussed.
The key role of the degree of dispersion will be underlined.
A treatment of interparticle forces and a yield stress model integrating these will be presented.
Such work is necessary to integrate the dispersion efficiency of superplasticizers based on their dosage and molecular structures into existing models for predicting concrete rheology.

Online publication: 2004-04-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14126