Mechanism of temperature crack in asphalt pavement and prediction of fatigue life

Author

Ganbin, Liu ; Qianzheng, Kai

Author_Institution

Coll. of Civil, Constr. Eng. & Environ., Ningbo Univ., Ningbo, China

fYear

2010

fDate

26-28 June 2010

Firstpage

1538

Lastpage

1541

Abstract

In this paper, the mechanism for different type of temperature cracks in asphalt pavement is analyzed. Further-more, fatigue life of the asphalt pavement containing reflective cracks in the base is predicted by using the Paris law. The relationship between the stress intensity factor and the crack length is established through the finite element model. Then, the fatigue life of the pavement is acquired by using numerical integration method. The effect of three factors, namely thickness of the base course, thickness of the surface course and modulus of the base course, on the fatigue life is also studied. As a result, the parameters of road structure have remarkable impact on the propagation of reflective crack.

Keywords

cracks; finite element analysis; integration; life testing; road building; Paris law; asphalt pavement; base course modulus; base course thickness; crack length; fatigue life prediction; finite element model; numerical integration; reflective crack; road structure; stress intensity factor; surface course thickness; temperature crack; Asphalt; Building materials; Concrete; Educational institutions; Fatigue; Stress; Surface cracks; Telecommunication traffic; Temperature sensors; Testing; Paris law; Reflective crack; Temperature fatigue;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7737-1

Type

conf

DOI

10.1109/MACE.2010.5536064

Filename

5536064