The National Academies

NCHRP 09-23 [Completed]

Environmental Effects in Pavement Mix and Structural Design Systems

  Project Data
Funds: $487,234
Research Agency: Arizona State University
Principal Investigator: William N Houston
Effective Date: 2/27/2001
Completion Date: 12/31/2007

The objectives of this research were to (1) validate the latest version of Integrated Climatic Model (ICM) developed in NCHRP Project 1-37A with data from the full Long Term Pavement Performance Seasonal Monitoring Program and (2) verify the estimated period or rate of aging simulated by the current Superpave binder and hot mix asphalt conditioning procedures

These objectives were successfully accomplished and the key results were incorporated in the Mechanistic-Empirical Pavement Design Guide developed in NCHRP Projects 1-37A and 1-40.

The final report for research related to the first objective is available as NCHRP Report 602, Calibration and Validation of the Enhanced Integrated Climatic Model for Pavement Design; the full text of the project final report and its six appendixes are available at https://onlinepubs.trb.org/onlinepubs/nchrp/docs/NCHRP09-23_Part2_FR.pdf and https://onlinepubs.trb.org/onlinepubs/nchrp/docs/NCHRP09-23_Part2_FR_Appx.pdf, respectively.The final report for research related to the second objective is available as NCHRP Research Results Digest 324; the full report for this phase is published as NCHRP Web-Only Document 113.


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