United States Department of Transportation
i
Characterization of Louisiana asphalt mixtures using simple performance tests and MEPDG : tech summary.
-
2014-04-01
[PDF-178.56 KB]
Details:
-
Creators:
-
Corporate Creators:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:The Federal Highway Administration’s 1995-1997 National Pavement Design Review found that nearly 80 percent of
states use the 1972, 1986, or 1993 AASHTO Design Guides. These design guides are relying on empirical relationships
between paving material properties and structural performance of pavement layers developed mainly based on the
AASHO Road Test data (1956-1962). In recognition of the limitations of these older AASHTO Design Guides, the Joint
Task Force on Pavements (JTFP) initiated an eff ort to develop an improved design guide based as fully as possible on
mechanistic principles. The FHWA’s Mechanistic-Empirical Pavement Design Guide (MEPDG) is the recently released
result of such an eff ort. An integrated hierarchical approach was elected as the main framework of the new MEPDG
in such a way that the input items are classifi ed as Level 1, Level 2, and Level 3 from the most to least accurate values
depending on the importance of projects in concern. Four broad categories of inputs are required in the MEPDG analysis:
namely, general, traffi c, climate, and structure where the paving materials’ mechanical properties are fed under the
category of structure
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
