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Comparative Study of the Effectiveness of Lime and Cement Stabilization of Lateritic Clay Soil from Ofunmwengbe in Okada Town, Edo State, Nigeria

Authors: Osegbowa DE, Eze EO

ABSTRACT

The effect of lime and cement addition on the properties of clay soil from Ofunmwengbe in Okada town, Edo State, Nigeria was studied using varying percentages of lime and cement up to 9%. The results obtained, indicate that the plasticity index decreased from 71% at 0% lime and cement content to 17% and 30% respectively at 9% lime and cement content. The treated clay soil was tested for California bearing ratio (CBR) for both unsoaked samples (treated sample not immersed in water) and soaked sample (treated sample immersed in water for twenty four (24) hours). The California bearing ratio increased from 6% and 0.67% for unsoaked and soaked samples of the natural clay soil to peak values of 14% and 18% for unsoaked and soaked samples at 5% lime content and also to 9% and 10% for unsoaked and soaked samples at 7% cement content. There was also an increase in the unconfined compressive strength (UCS) to a peak value of 3.5 kN/mm2 at 5% lime and 2.25 kN/mm2 at 7% cement contents respectively as against 0.33 kN/mm2 for the natural soil. Thus, 5% lime and 7% cement content were recommended for the stabilization of clay soil for both base and sub-base courses in road construction.


Affiliations: Department of Civil Engineering, Faculty of Engineering, University of Benin, Benin City, Nigeria.
Keywords: Clay Soil, Plasticity Index, California Bearing Ratio, Unconfined Compressive Strength, Lime And Cement Stabilization
Published date: 2019/06/30

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ISSN: 2635-3342 (Print)

ISSN: 2635-3350 (Online)

DOI: In progress

ISI Impact Factor: In progress

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Chemical Engineering Department, Faculty of Engineering, University of Benin, PMB 1154, Ugbowo, Benin City, Edo State, Nigeria.