Performance of soil-aggregate-fabric systems in frost-susceptible roads, Linn County, Iowa.
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1980-05-01
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Abstract:Thousands of miles of unimproved secondary roads in the upper midwest are annually plagued by frost action in their subgrades. Among the economic losses incurred are costs of repair and maintenance of the damaged roadway. Considerable loss of skid resistant surface aggregate occurs because of intrusion into the thaw-softened subgrade. Economic implications also occur to highway users if a weight limit embargo is imposed, or more severely if complete closure of the roadway is dictated by thaw-induced lack of traffic support capacity.
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