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Effect of Soil Parameters on Dynamic Cone Penetration Indices of Laterite Sub-grade Soils from India
Authors:Varghese George  Ch. Nageshwar Rao  R. Shivashankar
Affiliation:(1) Department of Civil Engineering, National Institute of Technology Karnataka, Srinivasnagar Post, Mangalore, 575025, Karnataka, India
Abstract:The focus of this study was on correlating the effect of grain-size, maximum dry-density (MDD), field moisture content, and the void ratios on penetration measured using the dynamic cone penetrometer (DCP) for laterite soils blended with fines. Tests were performed on soil samples compacted to MDD for moulding water contents set to the optimum moisture content (OMC), dry of OMC, and wet of OMC un-soaked condition. The results indicated that an increase in the fines-content caused a decrease in the MDD, and an increase in the OMC and the DCP penetration. Regressions were developed correlating various parameters.
Keywords:DCP  Silty soil  Laterite sub-grade  Soil parameters  Correlation
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