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    Product Evaluation: Presto Roadbase Sand Confinement Grid

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    1983_Coetzee_Presto Roadbase ...
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    Author
    Coetzee, Nicolaas F.
    Keyword
    Road Maintenance
    Metadata
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    URI
    http://hdl.handle.net/11122/10194
    Abstract
    The Alaska Department of Transportation and Public Facilities is continuously looking for methods of using marginal soils for roadway and airport embankments. In areas such as the Western coast of Alaska, where quality materials must be imported and therefore are prohibitively expensive, the use of native soils represents a significant cost savings to the State. The Army Corps of Engineer Experimental Waterways Station has developed a method of stabilizing sand using a plastic grid system. This report analyzes the system for use in Western Alaska using a finite element analysis and the Chev5L computer program. These analysis indicate that the grid system is at least equal to 6 inches of crushed aggregate. The bearing capacity of the sand is greatly enhanced since lateral displacement is eliminated. Although additional work is still required, it is expected that the sand grid system discussed in this report will ultimately result in a significant cost savings in embankment construction in Western Alaska
    Table of Contents
    Abstract Implementation 1 Introduction 2 Pavement Load Information 3 Analytical Approaches 4 Bearing Capacity Analysis 7 Finite Element Analysis 11 Elastic Layer Analysis using CHEVN 14 Visit to WES 15 Analysis of Possible Pavement Alternatives 18 Conclusions and Recommendations 20 References
    Date
    1983-06
    Type
    Technical Report
    Collections
    INE Project Reports

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