Assessing the Use of Activated Waste Glass Powder for Stabilization of Lateritic Soils for Subbase Layer in Road Construction
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Date
2025-04-17
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Uganda Christian University
Abstract
This research is entailed in the stabilization of lateritic soils using waste glass powder. Lateritic soils are problematic when used for road construction without stabilizing. This is because they cannot return back to their natural density when
compacted. They contain a high plasticity index making the soils unsuitable for use in construction of road works as well as the building foundations (Olusola, 2021). Having tested this soils, they contained a plasticity index of 17.8%, CBR of 28% which all were below the standards of a minimum CBR of 45 % with guidelines of road works. This research is based on the use of the activated waste glass powder since it contains pozzolanic properties such as the silica of 73.67% calcium oxide of 9.16%, Sodium oxide of 15.63% which form cementitious compounds when it reacts with the lateritic soils enhancing on the strength, durability, stability and compressibility of the soils. The activated waste glass powder also enhances on the pozzolanic reaction with the Calcium hydroxide in the soil forming silicate gels that cause the binding in soils thus improving on the compaction and strength and reducing on the plastic nature of the soils improving on the durability.
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Undergraduate