Browsing by Author "Lukanda, J."
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Item Prediction of Compaction Density of Lateritic Soil Base Pavement Layers from Dynamic Cone Penetration Values in Uganda(arcsmge, 2015) Jjuuko, S.; Kalumba, D.; Mutaasa, H.K.; Lukanda, J.The study focused on obtaining a correlation between sand replacement method density values and dynamic cone penetration (DCP) rate values (mm/blow) for base pavement layers of lateritic soils in Uganda. A maximum depth of 500 mm of gravel of lateritic soil on existing roads, in Rubaga division in Kampala (Uganda), was penetrated using the DCP to obtain the rate of penetration (mm/blow). They were also investigated for their index properties and field density values using sieve analysis, Atterberg limits and sand cone replacement methods. The gravel was generally classified as reddish-brown clayey sand with an AASHTO class of A-2-6. The correlation obtained between dry density values from the sand-cone replacement method and DCP rates showed an inverse relationship with R2 coefficient of 0.5999 indicating a moderate correlation between the two variables. The correlation was validated with data from other lateritic base layers of roads in Wakiso district, Uganda