United States Department of Transportation
i
Resilient moduli of typical Missouri soils and unbound granular base materials
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2008-03-01
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[PDF-11.55 MB]
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Edition:Final report
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NTL Classification:NTL-HIGHWAY/ROAD TRANSPORTATION-Soils and Geology;NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance;
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Abstract:The objective of this project is to accurately determine the resilient moduli for common Missouri subgrade soils and unbound granular base materials in accordance with the AASHTO T 307 test method. The test results included moduli data from 27 common subgrade soils out of the 99 Missouri soil associations and from 5 unbound granular bases. These materials, selected andprovided by MoDOT, were tested at their optimum water content and at an elevated water content, which would normally occur as a worse case scenario during the life of a pavement. The five unbound granular base materials, representing a normal range in geologic source, particle shape, and PI of the fines, were tested at two different gradations (high and low side of the Type 5 specification limits) as well as the aforementioned two water contents. All testing included at 3 replications for all materials at both water contents if possible. Data are provided in the technical report format with all applicable tables and graphs.
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