Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Catalog of Material Properties for Mechanistic-Empirical Pavement Design
The new Mechanistic-Empirical Pavement Design Guide adopted by AASHTO represents a fundamental advance over the current 50-year old empirical pavement design procedures derived from the AASHTO Road Test. The goal is to provide more cost-effective and better-performing pavement designs for the traffic volumes, vehicle characteristics, pavement materials, construction/rehabilitation techniques, and performance demands of today and the future. The MEPDG design procedures are implemented in the new DARWin-ME software currently under development and scheduled for release in April 2011. Material characterization for the MEPDG, the focus of this report, is significantly more fundamental and extensive than in the previous empirically-based AASHTO pavement design methodology. A hierarchical input data scheme has been implemented in the MEPDG to permit varying levels of sophistication for specifying material properties, ranging from laboratory measured values (Level 1) to empirical correlations (Level 2) to default values (Level 3). The development of this type of organized database of material properties for the most common paving materials in Maryland was the primary objective of this study. The database that was developed was populated with information received from the Maryland State Highway Administration (SHA). It provides complete data management tools for adding future data as well as data display screens for MEPDG inputs that mirror the input screens in the MEPDG Version 1.100 software. These data display screens can be easily modified to mirror the DARWin-ME input screens once the DARWin-ME software has been finalized and released to the public.
Catalog of Material Properties for Mechanistic-Empirical Pavement Design
The new Mechanistic-Empirical Pavement Design Guide adopted by AASHTO represents a fundamental advance over the current 50-year old empirical pavement design procedures derived from the AASHTO Road Test. The goal is to provide more cost-effective and better-performing pavement designs for the traffic volumes, vehicle characteristics, pavement materials, construction/rehabilitation techniques, and performance demands of today and the future. The MEPDG design procedures are implemented in the new DARWin-ME software currently under development and scheduled for release in April 2011. Material characterization for the MEPDG, the focus of this report, is significantly more fundamental and extensive than in the previous empirically-based AASHTO pavement design methodology. A hierarchical input data scheme has been implemented in the MEPDG to permit varying levels of sophistication for specifying material properties, ranging from laboratory measured values (Level 1) to empirical correlations (Level 2) to default values (Level 3). The development of this type of organized database of material properties for the most common paving materials in Maryland was the primary objective of this study. The database that was developed was populated with information received from the Maryland State Highway Administration (SHA). It provides complete data management tools for adding future data as well as data display screens for MEPDG inputs that mirror the input screens in the MEPDG Version 1.100 software. These data display screens can be easily modified to mirror the DARWin-ME input screens once the DARWin-ME software has been finalized and released to the public.
Catalog of Material Properties for Mechanistic-Empirical Pavement Design
C. W. Schwartz (Autor:in) / R. Li (Autor:in)
2011
142 pages
Report
Keine Angabe
Englisch
Highway Engineering , Construction Equipment, Materials, & Supplies , Pavements , Materials properties , Design procedures , Construction , Cost effectiveness , Data base management , Methodology , Rehabilitation , Roads , Testing , Traffic volume , Vehicle characteristics , Mechanistic-Empirical Pavement Design Guide(MEPDG)
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