CBR and DCP Correlation for Class C Fly Ash-Stabilized Soil
Misra, A
University of Missouri-Kansas City, MO350H Flarsheim Hall, 5100 Rockhill Road, Kansas City, MO, 64110

Upadhyaya, S
University of Missouri-Kansas City, MO350H Flarsheim Hall, 5100 Rockhill Road, Kansas City, MO, 64110

Horn, C
Kansas City Power and Light Company, Kansas City, MO, 64110

Kondagari, S
University of Missouri-Kansas City, MO350H Flarsheim Hall, 5100 Rockhill Road, Kansas City, MO, 64110

Gustin, F
Kansas City Power and Light Company, Kansas City, MO, 64110

(Received 30 May 2004; accepted 14 July 2005)

Abstract
The dynamic cone penetrometer (DCP) test is being increasingly used for assessing the California bearing ratio (CBR) values of sub-grade soil in the field. The purpose of this laboratory investigation was to establish a correlation between CBR and DCP for soils stabilized with Class C fly ash. In this laboratory study, natural soil (Type CL-lean clay) mixed with Class C fly ash was used to establish the correlation at different percentages of Class C fly ash and moisture. It was found that a good correlation exists between CBR and DCP for Class C fly ash-stabilized soils and that the correlations are similar to those developed by other researchers. The correlations developed here may be used for rapid field determination of CBR values of clay soils stabilized with Class C fly ash.

Keywords:
Class C fly ash, soil stabilization, California bearing ratio (CBR), dynamic cone penetrometer (DCP)

Paper ID: GTJ12657
DOI: 10.1520/GTJ12657

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Author Misra A, Upadhyaya S, Horn C, Kondagari S, Gustin F Title CBR and DCP Correlation for Class C Fly Ash-Stabilized Soil Symposium , Committee on