The influence of geological factors on the engineering propertise of some western Nigerian residual lateritic soils as highway construction material

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dc.contributor.authorMesida, Ebenezer Ajibola
dc.date.accessioned2023-05-13T16:28:12Z
dc.date.available2023-05-13T16:28:12Z
dc.date.issued1985
dc.description202pen_US
dc.description.abstractThe fundamental influence of geology on some geotechnical properties of lateritie soils as highway -construction material within a restricted macroclimatic area of Akure and llesha in the deciduous rain forest belt of South Western Nigeria was investigated. Lateritic soils derived from four major petrological units, namely t'.aarse, P~yrphyrit.ie Granite, Coarse to medium Charnockite, Coarse to medium massive amphibolite, and medium Grained Talc Schist were concentrated upon the different ways in which Geochemistry, Clay Mineralogy, Degree of weathering and Laterization influenced the engineering properties of the sails were examined. The results have conclusively proved that geology is the main factor controlling the geotechnical properties of residual lateritic soils within the restricted climatic environment. A new parameter, termed the water absorption coefficient of lateritic soils was evolved. It is the angular relationship between the 48-hour soaked CBR value of a soil and average percent value of the soils' CBR at Optimum Moisture Content of Modified AASHO acompaction. The mean values of the coefficient in the four soils studied showed discernible relationship to the respective parent rocks. Recommendations for further research include an investigation of the relationship between the shear strength parameters of compacted genetic lateritic soils especially in the triaxial test: and the relationship between the water absorption coefficient and the geophysical resistivity values of similarly compacted genetic lateritic soils. Such subsequent research may eventually provide convenient quantitative engineering parameters which would relate the variations of moisture content, dry density, geophysical resistivity and the triaxial shear strength values in genetic lateritic soils in general.en_US
dc.identifier.urihttps://ir.oauife.edu.ng/123456789/5243
dc.language.isoenen_US
dc.publisherObafemi Awolowo University, Ile Ife, Nigeriaen_US
dc.subjectSoilsen_US
dc.subjectLateritic soilsen_US
dc.subjectGeologyen_US
dc.subjectMacroclimatic areaen_US
dc.subjectRain foresten_US
dc.subjectGeochemistryen_US
dc.subjectMoistureen_US
dc.subjectAbsorption coefficienten_US
dc.subjectTri-axial test/ geophysical resistivityen_US
dc.titleThe influence of geological factors on the engineering propertise of some western Nigerian residual lateritic soils as highway construction materialen_US
dc.typeThesisen_US
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