A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Incorporating binder type into asphalt fatigue life characterisation of airport pavement surfaces
Most airport pavement design tools include a failure criterion for predicting bottom-up asphalt fatigue cracking. However, in practice bottom-up cracking is rarely observed in airport pavement surfaces and many designers question the efficacy of the common asphalt fatigue failure criteria. Where asphalt fatigue is considered, asphalt mixtures are characterised primarily by mixture stiffness and the volume of bituminous binder, while the type of binder (unmodified, acid modified, plastomeric or elastomeric) is not directly considered. By comparing the stiffness and fatigue lives of asphalt mixtures produced with four different aggregate sources and four different binder types, the importance of binder type on the relationship between mixture stiffness and laboratory fatigue life is clear. Further work is recommended to incorporate parameters representing the type of binder into mechanistic-empirical pavement design failure criteria for asphalt fatigue.
Incorporating binder type into asphalt fatigue life characterisation of airport pavement surfaces
Most airport pavement design tools include a failure criterion for predicting bottom-up asphalt fatigue cracking. However, in practice bottom-up cracking is rarely observed in airport pavement surfaces and many designers question the efficacy of the common asphalt fatigue failure criteria. Where asphalt fatigue is considered, asphalt mixtures are characterised primarily by mixture stiffness and the volume of bituminous binder, while the type of binder (unmodified, acid modified, plastomeric or elastomeric) is not directly considered. By comparing the stiffness and fatigue lives of asphalt mixtures produced with four different aggregate sources and four different binder types, the importance of binder type on the relationship between mixture stiffness and laboratory fatigue life is clear. Further work is recommended to incorporate parameters representing the type of binder into mechanistic-empirical pavement design failure criteria for asphalt fatigue.
Incorporating binder type into asphalt fatigue life characterisation of airport pavement surfaces
Int. J. Pavement Res. Technol.
White, Greg (author)
2020-01-01
8 pages
Article (Journal)
Electronic Resource
English
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