Assessment of Index Properties of Lateritic Soils in Offa for Road Construction Works
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Global Scientiric Journals
Abstract
Lateritic soils are the most common surface deposits occurring in the tropical and subtropical regions of the world. The index properties of lateritic soil of selected borrow pits in Offa, Nigeria for road construction works has been investigated. Specific gravity, natural moisture content, particle size distribution and Atterberg limits tests were conducted on the samples taken from the borrow
pits/lateritic deposits. The results revealed that the specific gravity of the soil samples has been classified as inorganic soils. The natural moisture content of samples A to D, are within the average specified limit for road constructions while sample E does not conform to the specified range (which is an indication of high water adsorption capability of the soil material). The soils of samples A and B; and C and E, fall under group A-6 and A-7-6, respectively, suggesting poor road construction material. However, soil samples D fall under group A-2-7 classification suggesting good road construction material. Soil samples A, B, C, and D are within the maximum standard limit of liquid limit, thereby making them suitable for subgrade, subbase and base materials. While sample E value is above 50% rendering it unsuitable materials.