Geotechnical Beneficiation of the Strength Indices of Lateritic Soil Using Steel Slag and Cement
- 15 March 2022
- journal article
- research article
- Published by Trans Tech Publications, Ltd. in International Journal of Engineering Research in Africa
- Vol. 59, 101-117
- https://doi.org/10.4028/p-e13k1f
Abstract
The impact of admixture of both Ordinary Portland Cement (OPC) and steel slag was examined on the geotechnical properties of the lateritic soil, by conducting basic geotechnical tests: Particle size analysis, Consistency limits, Compaction, California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS) on both the natural and stabilized soil samples and results were subjected to statistical analysis using 2-way ANOVA (Analysis of Variance) at 5% level of significance. The natural soil was classified as s A-7-6 and MH under standard soil classification systems. Addition of steel slag lowered the liquid limit (LL) and plasticity index (PI), while cement increased the LL and decreased PI of the lateritic soil, respectively. With increasing content of slag and cement, maximum dry density increased with the corresponding decrease in optimum moisture content. CBR and UCS of the stabilized soil increased substantially with increasing contents of slag and cement. Both steel slag and cement have statistically significant effects on the geotechnical properties of the lateritic soil. Hence, this soil can be stabilized with addition of 12% steel slag and 6% cement contents for its application as an improved subgrade material for light trafficked pavement. Keywords: Lateritic soil, steel slag, cement, stabilization, Index properties, strength indices.Keywords
This publication has 40 references indexed in Scilit:
- Microstructure regulation of super activated carbon from biomass source corncob with enhanced hydrogen uptakeInternational Journal of Hydrogen Energy, 2013
- Effects of Granulated Blast Furnace Slag in the Engineering Behaviour of Stabilized Soft SoilProcedia Engineering, 2013
- Hydraulic conductivity of compacted lateritic soil treated with bagasse ashInternational Journal of Environment and Waste Management, 2013
- Diffusion of municipal waste contaminants in compacted lateritic soil treated with bagasse ashEnvironmental Earth Sciences, 2012
- Steel Slag as an Aggregate Replacement in Malaysian Hot Mix AsphaltISRN Civil Engineering, 2012
- Geotechnical Properties of Saw Dust Ash Stabilized Southwestern Nigeria Lateritic SoilsEnvironmental Research, Engineering and Management, 2012
- Mechanical-Cement Stabilization of Laterite for Use as Flexible Pavement MaterialJournal of Materials in Civil Engineering, 2011
- Development of corn cob ash blended cementConstruction and Building Materials, 2009
- Utilization of steel slag for Portland cement clinker productionJournal of Hazardous Materials, 2008
- Characteristics of the slags produced in the fusion of scrap steel by electric arc furnaceCement and Concrete Research, 2000