United States Department of Transportation
i
Feasibility analysis of base compaction specification : [project brief].
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2013-02-01
[PDF-247.25 KB]
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NTL Classification:NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-HIGHWAY/ROAD TRANSPORTATION-Design;
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Abstract:Appropriate design and construction of the aggregate base layer has significant influence on
structural stability and performance of pavements. Controlling the construction quality of
the granular base layer is important to achieve long-lasting pavements with good ride quality and minimized distress. The Wisconsin Department of Transportation (WisDOT) construction specifications have been transitioning from “method” specifications to “performance” specifications. However, WisDOT’s base aggregates specifications have not yet made that transition. A base aggregate specification that is based on performance criteria for compaction will improve pavement structural designs and reduce construction costs and delays arising from base failures during construction. The quality of the constructed aggregate base layers is evaluated by either density-based methods or modulus-based methods to ensure that the product will lead to long-lasting and better-performing pavements.
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