Abstract
In this study the effects of cement kiln dust (CKD), a by-product of cement, on the geotechnical properties and erosion control of a natural slope consisting of fine-grained soil in the state of New Mexico, USA are investigated. Laboratory tests to determine Atterberg limits, compaction characteristics, unconfined compressive strength, and pH were performed on the native soil as well as the treated soil with CKD. The slope in the field was divided into several different portions, and each portion was treated with different percentage of CKD. Laboratory results showed that CKD reduces the plasticity index, maximum dry unit weight, and ductility of the soil while it increases the optimum water content, unconfined compressive strength, and pH of the soil. The field results showed that CKD reduces soil erosion significantly.
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