Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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1. AGENCY USE ONLY (Leave blank)
2. REPORT DATE
3. REPORT TYPE AND DATES COVERED
September 1996
Final Report
June 1988October 1994
4. TITLE AND SUBTITLE
5. FUNDING NUMBERS
Material Testing and Initial Pavement Design Modeling: Minnesota
CPAR Project
Road Research Project
Agreement No. 64632
Task Order No. 1
6. AUTHORS
Susan R. Bigl and Richard L. Berg
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION
REPORT NUMBER
U.S. Army Cold Regions Research and Engineering Laboratory
72 Lyme Road
CRREL Report 96-14
Hanover, New Hampshire 03755-1290
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSORING/MONITORING
AGENCY REPORT NUMBER
Minnesota Department of Transportation
395 John Ireland Boulevard Mail Stop 330
MN/RC-96/23
St. Paul, Minnesota 55155
11. SUPPLEMENTARY NOTES
For conversion of SI units to non-SI units of measurement consult ASTM Standard E380-93, Standard Practice for Use of the
International System of Units, published by the American Society for Testing and Materials, 1916 Race St., Philadelphia, Pa. 19103.
12a. DISTRIBUTION/AVAILABILITY STATEMENT
12b. DISTRIBUTION CODE
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161
13. ABSTRACT (Maximum 200 words)
Between January 1990 and December 1994, a study verified and applied a Corps of Engineers-developed
mechanistic design and evaluation method for pavements in seasonal frost areas as part of a Construction
Productivity Advancement Research (CPAR) project between the Minnesota Department of Transportation
(Mn/DOT) and the U.S. Army Cold Regions Research and Engineering Laboratory (CRREL). The study
involved four primary components. Mn/DOT constructed a full scale pavement test facility adjacent to Interstate
94, referred to as the Minnesota Road Research Project (Mn/ROAD). CRREL performed extensive laboratory
tests on the base and subgrade materials from Mn/ROAD to characterize them and their behavior under seasonal
frost conditions. Laboratory tests provided the input parameters necessary for the study's third component,
modeling with the CRREL Mechanistic Pavement Design and Evaluation Procedure. The modeling effort was
conducted in three phases, which investigated the effects of freeze season characteristics, water table position,
asphalt model and subgrade characteristics on the predicted performance of selected Mn/ROAD test sections.
Delays in construction on the Mn/ROAD facility prevented the completion of the study's fourth component--
using performance data from Mn/ROAD to validate the mechanistic pavement design and evaluation procedure.
The report details results from the other three components.
14. SUBJECT TERMS
15. NUMBER OF PAGES
56
Mechanistic pavement design and evaluation procedure
Freeze season characteristics
16. PRICE CODE
Construction Productivity Advancement Research (CPAR)
Pavement performance
17. SECURITY CLASSIFICATION
18. SECURITY CLASSIFICATION
19. SECURITY CLASSIFICATION
20. LIMITATION OF ABSTRACT
OF REPORT
OF THIS PAGE
OF ABSTRACT
UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
UL
Standard Form 298 (Rev. 2-89)
NSN 7540-01-280-5500
Prescribed by ANSI Std. Z39-18
298-102
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