Laboratory and Field Evaluation of Soil Stabilization Using Cement Kiln Dust

摘要

A field and laboratory study was undertaken to evaluate Cement Kiln Dust (CKD) as a soil stabilizer. The performance of CKD from three different sources, Holnam of Ada, Blue Circle Cement of Tulsa, and Lone Star Industries, Inc. of Pryor was compared to the performance of Quick Lime. The field component involved the construction of four test sections along a rural highway near Lula, Oklahoma. During construction, observations were made so that the construction requirements for different additives could be compared. In addition, soil samples were collected before stabilization for the purpose of soil classification. Treated soil samples were collected prior to compaction to prepare laboratory specimens for unconfined compression testing. Field testing included Dynamic Cone Penetration (DCP) testing in the stabilized subbase, and Falling Weight Deflectometer (FWD) testing after completion of the pavement.