tests on Mn/ROAD to estimate pavement perfor-
nistic pavement design procedure. USA Cold Re-
mance on an annual basis.
gions Research and Engineering Laboratory, Spe-
The Mechanistic Pavement Design Procedure
cial Report 96-21, Mn/DOT Report 96-22.
should be used to estimate performance of all of
Bush, A. (1980) Non-destructive testing for light
the test sections. This study evaluated less than
aircraft pavements. USAE Waterways Experiment
one-half of the sections.
Station, Vicksburg, Mississippi (sponsored by the
Federal Aviation Administration).
Chamberlain, E.J. (1987) A freeze thaw test to
CONCLUSIONS*
determine the frost susceptibility of soils. USA
Cold Regions Research and Engineering Labora-
The range of values produced for the various
tory, special Report 87-1.
scenarios is, as noted, extremely wide. This leads
Chamberlain, E.J., T.C. Johnson, R.L. Berg
to the conclusion that mechanistic design in its
and D.M. Cole (in prep.) Prediction of pavement
present stage, while a powerful predictor of
behavior under loading during freezing and thaw-
changes in pavement response with changes in
ing. USA Cold Regions Research and Engineer-
loads or moduli, is at present an uncertain predic-
ing Laboratory, CRREL Report.
tor of pavement performance. Data and analyses
Chou, Y.T (1989) Development of failure criteria
from Mn/ROAD are crucial to improving that cur-
of rigid pavement thickness requirements for mili-
rent uncertain state of performance prediction.
tary roads and streets, elastic layered method.
USAE Waterways Experiment Station, Vicksburg,
Mississippi, Miscellaneous Paper GL-89-9.
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velopment of the Asphalt Institute's thickness de-
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* This was written by G. Cochran, Mn/ROAD, pers. comm. 1994.
44
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