EVALUATING THE IMPACT OF CEMENT AND RICE HUSK ASH ON THE STABILIZATION OF LOW BEARING CAPACITY SILTYCLAYEY SOIL

Authors

  • Ugochukwu T. Ernest Department of Civil Engineering, Faculty of Engineering, Federal University Oye-Ekiti, Ekiti State, Nigeria.
  • Amu O. Oludolapo Department of Agricultural and Bio-Resources Engineering, Faculty of Engineering, Federal University Oye-Ekiti, Ekiti State, Nigeria.
  • Olaniyan Amos M.
  • Emmanuel C. Chukwu Department of Geology, Faculty of Science, Federal University Oye-Ekiti, Ekiti State, Nigeria.

Keywords:

Electrical and Electronic Waste (E-Waste), Rice Husk Ash (RHA), California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS), Triaxial Test.

Abstract

Electrical and electronic waste (E- waste) is applied to electrical and electronic waste materials of all kinds,
which includes but not limited to refrigerators, mobile phones, computers, televisions and other electronic
gadgets. This E-waste has been found to have tremendous deterioration on engineering properties of soil
over time. This study investigates the influence of Cement and Rice Husk Ash (RHA) on some geotechnical
properties of E-waste such as the California Bearing Ratio (CBR), triaxial test results, and Unconfined
Compressive Strength (UCS). E- Waste contaminated soil samples were treated with 0%, 2%, 4%, 6%, 8%,
and 10% cement and RHA. The results of the CBR showed highest value of 59.05%, deviation. stress σ3 peak
value of 615.05KN/m2 and UCS highest value of 276.84 kPa. These results were obtained at the optimal
cement-RHA admixture performance. The result demonstrates that the addition of cement and RHA enhances
the e-waste soil's engineering properties.

Downloads

Published

2025-03-31

Issue

Vol. 14 No. 1 (2025): JOURNAL OF BASIC PHYSICAL RESEARCH

Section

Articles