Geotechnical Properties of Lateritic Overburden Materials on the Charnockite and Gneiss Complexes in Ipele-Owo Area, Southwestern Nigeria
Journal Title: American journal of Engineering Research - Year 2016, Vol 5, Issue 9
Abstract
The lateritic soils that overburden Charnockite and Gneiss Complexes in Ipele-Owo area of Ondo State, Nigeria are in great use for local construction. However, little is known of their engineering properties and suitability as sub-grade and sub-base materials for large-scale building and road construction. This work utilized standard geotechnical analytical techniques to examine and characterize these laterites. The results show that the soil is characteristically of a moderate strength based on the average California Bearing Ratio (CBR) test result of 52.5%. The average particle size distribution indicates 11% fine grained sand, 2% medium grains, 12.4% coarse grains, 2% fine gravel and 74.6% clay-sized particles. The respective values of the linear shrinkage, liquid and plastic limits are 10.5%, 52.7% and 23.45%. The maximum dry density of the laterites is 1778.5 kg/m3 while the moisture content is 17.65%. It is therefore suggested that the Ipele-Owo laterites are suitable for use as sub-grade and sub-base construction materials since the geotechnical properties are fairly within the regulatory standards in Nigeria.
Authors and Affiliations
G. P. Ojo1 ,, U. G. Igbokwe2 ,, K. K. Nwozor3, C. J. Egbuachor4
Keywords
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