01025387

Component

This paper describes how one of the major sources of distresses in asphalt pavements is cracking in the surface layer. Since asphalt mixtures are composite materials, their behavior is fundamentally determined by the local behavior of its constituents, their volume fraction and their physical-chemical interactions. Thus, in order to better understand the mechanical response of asphalt mixtures, it is necessary the use of methodologies that accurately consider the characteristics and phenomena that occur in smaller scales. A methodology that has been studied in the international scientific community is the so-called multi-scale modeling. The objective of this paper is to simulate the mechanical behavior, including damage evolution, of an asphalt mixture under monotonic and cyclic loading using a computational multi-scale model. Numerical results show that the model can qualitatively simulate both fatigue cracking and accumulation of permanent deformation.

01020180

06-0419

English

19p

2006

Transportation Research Board 85th Annual Meeting

CD-ROM

Figures (7) ; References (25) ; Tables (1)

Asphalt mixtures; Asphalt pavements; Chemical properties; Composite pavements; Cracking; Mechanical properties; Pavement cracking; Pavement layers; Surface course (Pavements)

Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways

Transportation Research Board Annual Meeting 2006 Paper #06-0419

TRIS, TRB

Mar 3 2006 10:21AM