ABSTRACT
This paper describes the test method and equipment used to carry out the Indirect Tensile Fatigue Test (ITFT) on bituminous mixtures using the Nottingham Asphalt Tester (NAT). Results of fatigue tests using an ITFT on four typical U.K. bituminous mixtures, are presented to demonstrate the ease of use and capabilities of this simplified test. The work forms part of a major research project dealing with the development of practical test methods to measure the mechanical properties of bituminous materials for pavement construction.
