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Stabilization Of An Airport Subgrade Using Hydrated Lime And Fly Ash, Tony L. Beckham, Tommy C. Hopkins
Stabilization Of An Airport Subgrade Using Hydrated Lime And Fly Ash, Tony L. Beckham, Tommy C. Hopkins
Kentucky Transportation Center Research Report
A 457-m (1,500-ft) runway pavement extension is planned for the Georgetown-Scott County Airport (Marshall Field). The clay subgrade of the existing paved runway was stabilized with six percent (dry weight) hydrated lime. A request was made by the Kentucky Transportation Cabinet, Division of Aeronautics, to determine the feasibility of replacing a percentage of the hydrated lime stabilizer with fly ash for the extended runway subgrade. Kentucky Highway Investigative Task No. 27 was issued by the Transportation Cabinet to fund a laboratory study to determine the effects of partially replacing lime with Type F fly ash (FA). Using fly ash to …