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Enhancing The Engineering Properties Of Lateritic Soils Using Anthills, Specifically Mold Soils, In Certain Parts Of The Benin Metropolitan City In Southern Nigeria

Author

Listed:
  • Osisanya Olajuwon Wasiu

    (Department of Physics, University of Benin, Benin City, Edo state, Nigeria.)

  • Andre-Obayanju O

    (Department of Geology, University of Benin, Benin City, Edo state, Nigeria.)

  • Ese Anthony Aladin

    (Department of Geology, University of Benin, Benin City, Edo state, Nigeria.)

Abstract

The study was carried out in Ovia North-East local government area of Edo state. The study area is located between latitudes of 6°24’16.116”N and longitudes of 5°37’26.205″E to 5°36’16.8”E in Ovia North-East local government area. A total of three (3) soil samples were collected from an Anthill (Mold soil) mix with Lateritic soil at 0%, 3% and 6%. The following geotechnical analyses (the Particle size analysis, Specific Gravity, Atterberg Limits, Compaction Test and Triaxial Tests) was carried on the Mold soil samples mixed with lateritic soil to evaluate their suitability for road construction. The analyses revealed that approximately 10% of the soil composition consists of fine sand grains, while the majority, accounting for 90%, is characterized as medium to coarse grained. The particle size distribution analysis of the Mold soil indicated that the percentage of fines is below 35%, classifying it as coarse-grained according to the American Association of State and Highway Transport Officials (AASHTO). The Mold soil exhibited weight retention of 47.26 grams. The Specific Gravity ranged from 2.34 to 2.51, Liquid Limit varied from 51.80% to 63.05%, Plastic Limit ranged from 26.70% to 29.39%, Plasticity Index ranged from 25.10% to 33.52%, and Shear strength spanned from 26.748 to 50.066 kN/m². The results of the Compaction Test indicated that the Maximum Dry Density (MDD) ranged from 1.54 to 1.61 g/cm³, and the Optimum Moisture Content ranged from 14.45% to 13.93% for Mold soils mixed with lateritic soil at 0%, 3%, and 6%, respectively. The study results demonstrate that the incorporation of Mold soil enhances the geotechnical properties of the soil, while the Anthill proves to be a beneficial additive for improving lateritic soil in road construction. Furthermore, the Mold soil sample, when mixed with lateritic soil, meets the specifications set by the Federal Ministry of Works and Housing, specifically maintaining a percentage of ≤ 18% for sub-base and base materials. This finding underscores the suitability of the soil for road construction purposes.

Suggested Citation

  • Osisanya Olajuwon Wasiu & Andre-Obayanju O & Ese Anthony Aladin, 2023. "Enhancing The Engineering Properties Of Lateritic Soils Using Anthills, Specifically Mold Soils, In Certain Parts Of The Benin Metropolitan City In Southern Nigeria," Pakistan Journal of Geology (PJG), Zibeline International Publishing, vol. 7(2), pages 48-55, February.
    • Handle: RePEc:zib:zbnpjg:v:7:y:2023:i:2:p:48-55
    DOI: 10.26480/pjg.02.2023.48.55
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