GEOTECHNICAL EXAMINATION OF THE GEOPHYSICAL PROPERTIES OF OLOKORO BORROW SITE LATERITIC SOIL FOR ROAD WORKS
DOI:
https://doi.org/10.4314/njt.313.569Keywords:
Olokoro lateritic soil, particle size distribution, compaction test, geophysical properties, California bearing ratio.Abstract
This present work was carried out to determine the geotechnical properties of Olokoro lateritic soil. Tests were carried out on the sample soil which includes the Atterberg limit tests, particle size distribution analysis; sedimentation test, compaction test using the West African standard and California Bearing Ratio (CBR) test as specified by the Nigerian General specification (1997). The liquid limit, plastic limit and plasticity index were found to fall into A-2-7 soil of AASTO classification and SP group of Unified Classification. The compaction characteristics of the soil were found to be 1.90mg/m3 and 14.76% for maximum dry density and optimum moisture content respectively on West African Standard. The CBR value was found to be 26%. It was recommended that the soil is good as a filling material in road subgrade and other construction works and require modification to improve its properties for sub-base and road base material.
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