A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of climate on asphalt pavement performance using two mechanistic-empirical methods
The objective of this study is to assess the impact of climate on the performance of bituminous pavements with two different methods, and then to examine their impact on actual design scenarios. Three climate cases were selected for the comparisons involving the effect of temperature: one in France (Bordeaux) and two in the United States (Seattle and Phoenix). The case of an experimental site in Québec was also used for comparisons concerning consideration for seasonal variations in ground bearing capacity. The analyses were based on French (Alizé-LCPC) and US (AASHTOWare Pavement ME Design) mechanistic-empirical pavement design approaches. Interesting features of the two design methods are outlined and their fatigue cracking models are linked together. The results of the study highlight the importance, for design purposes, of the empirical fatigue equations as a function of temperature. For the site studied in France, the design results in terms of AC base layer thicknesses indicate that both methods show a similar trend with an increase in temperature. For the site in Québec, which is submitted to severe freeze/thaw cycles, the results show that taking temperature and moisture into account for unbound materials leads to a prediction of more severe permanent deformation.
Highlights
Presentation of two mechanistic-empirical (ME) methods for pavement design
Description of the fatigue equations governing asphalt mixes for design purposes
Identification of the parameters used in the design of pavement structures
Study of the influence of the climate in France and Québec on pavement performance
Comparison of the French and US methods for pavement design and correspondence between them
Effect of climate on asphalt pavement performance using two mechanistic-empirical methods
The objective of this study is to assess the impact of climate on the performance of bituminous pavements with two different methods, and then to examine their impact on actual design scenarios. Three climate cases were selected for the comparisons involving the effect of temperature: one in France (Bordeaux) and two in the United States (Seattle and Phoenix). The case of an experimental site in Québec was also used for comparisons concerning consideration for seasonal variations in ground bearing capacity. The analyses were based on French (Alizé-LCPC) and US (AASHTOWare Pavement ME Design) mechanistic-empirical pavement design approaches. Interesting features of the two design methods are outlined and their fatigue cracking models are linked together. The results of the study highlight the importance, for design purposes, of the empirical fatigue equations as a function of temperature. For the site studied in France, the design results in terms of AC base layer thicknesses indicate that both methods show a similar trend with an increase in temperature. For the site in Québec, which is submitted to severe freeze/thaw cycles, the results show that taking temperature and moisture into account for unbound materials leads to a prediction of more severe permanent deformation.
Highlights
Presentation of two mechanistic-empirical (ME) methods for pavement design
Description of the fatigue equations governing asphalt mixes for design purposes
Identification of the parameters used in the design of pavement structures
Study of the influence of the climate in France and Québec on pavement performance
Comparison of the French and US methods for pavement design and correspondence between them
Effect of climate on asphalt pavement performance using two mechanistic-empirical methods
Ktari, Rahma (author) / Saint-Laurent, Denis (author) / Hornych, Pierre (author) / Hammoum, Ferhat (author) / Marsac, Paul (author) / Nguyen, Mai Lan (author)
International Journal of Pavement Engineering ; 23 ; 1433-1458
2022-04-16
26 pages
Article (Journal)
Electronic Resource
Unknown
Mechanistic-empirical pavement performance of asphalt mixtures with recycled asphalt shingles
| British Library Online Contents | 2018
Mechanistic-empirical pavement performance of asphalt mixtures with recycled asphalt shingles
| British Library Online Contents | 2018
Mechanistic-empirical pavement performance of asphalt mixtures with recycled asphalt shingles
| British Library Online Contents | 2018
Mechanistic-empirical pavement performance of asphalt mixtures with recycled asphalt shingles
| British Library Online Contents | 2018