Creep in asphaltic concrete, known as permanent deformation or rutting is one of the main failure mechanisms within the road infrastructure network. The Australian pavement design process however, does not incorporate procedures for minimising creep and instead relies on empirical test procedures linked to ranking material performance in the laboratory.
The paper reviews current international laboratory test methods employed for the prediction of creep in the field and considers the development of mechanistic based laboratory methods that would more accurately simulate the stress, temperature and boundary conditions of the pavement in the field.
Source: University of Southern Queensland
Authors: Esmaeil Ahmadinia | Frank Bullen | Ron Ayers