New Test Method for Measuring Friction Characteristics Between Asphalt Mixtures and Steel

Resumé

Friction between the steel parts of test device and the tested specimen occurs in
many hot mix asphalt test methods. The paper deals with new device called Cylindrical
Tribometr used for testing the friction characteristics between steel and hot mix asphalts
developed at CTU in Prague. Evidence established by Cylindrical Tribometr can be used as
input data characterizing boundary conditions in numerical modelling techniques for finding
approximate solutions (FEM). The paper presents particular data of coefficient of friction
between steel and hot mix asphalt. The dependence on slip rate, temperature and adhesion of
asphalt binder is discussed in this contribution.