Long term monitoring of moisture under pavements : executive summary report.
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2010-01-01
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Edition:Executive summary report.
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Abstract:The research
program consisted of three
distinct
activities. The first activity was a continuation of
the monitoring of environmental instrumentation
under select pavement sections constructed by the
Ohio Department of Transportation (ODOT) in
1995 on US 23 in Delaware
County, Ohio. The
measurements made by the OSU team at that site
consisted of soil moisture, temperature and frost
depth profiles. The installation procedures along
with the data collected over an eight year period
were described in two previous reports
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In the second activity, OSU constructed and
installed ten
siometers to directly measure the
pore water pressures in the subsurface soils at seven
locations at the DEL23 SHRP test road (four during
original road construction and three more in 2002).
Those d
evices were monitored throughout the
duration of the current project.
In the third activity, a laboratory testing
program was conducted to identify relationships
between static soil properties and the design
resilient modulus for compacted cohesive subgra
de
soils. Resilient modulus as well as classification and
strength tests were performed on cohesive soil
samples. The program to establish the relationships
between dynamic soil behavior and static properties
i
s described and
a
predictive tool
developed th
rough
the
use of artificial neural networks
is presented.
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