Comparison of marshall and superpave design methods, evaluation of wheel tracking test of asphalt mixtures designed by both methods

Title: Comparison of marshall and superpave design methods, evaluation of wheel tracking test of asphalt mixtures designed by both methods
Author(s): M. Varaus
Paper category : conference
Book title: Sixth International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials
Editor(s): M. N. Partl
Print-ISBN: 2-912143-35-7
e-ISBN: 2912143772
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 250 - 256
Total Pages: 7
Nb references: 7
Language: English

Abstract: The research project SHRP and the system Superpave have brought a new way of asphalt mixtures design. In European countries however the Marshall design method is still preferred. In the frame of the Czech-Austrian research between the Vienna University of Technology, Institute for Road Construction and Maintenance and the Brno University of Technology, Departments of Roads, asphalt concrete (AC) mixtures were designed by both methods. In case of the design of AC-mixtures the validity of the restricted zone, which was defined by Superpave in the allowed sieve curves range, was investigated. The restricted zone should be avoided according to Superpave, as not to design mixtures susceptible to permanent deformation. Three different sieve curves (above the restricted zone, in the restricted zone and below) were combined with 3 different bituminous binders (no modified, EVA-modified and SBS-modified). The resulting bituminous binder optima achieved by both methods were compared. The designed mixtures were then tested by performance related tests as wheel tracking test and some of them by fatigue test to find out their behaviour under different conditions. The article gives an overview of the test results and the comparison of both methods.

Online publication: 2003-03-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143772.030