Ionic Soil Stabilization as an Alternative to Conventional Asphalt Pavements

Abstract

Transportation infrastructure plays a central role in economic development and regional integration; however, conventional asphalt pavement systems often exhibit premature deterioration when constructed over moisture-sensitive or clay-dominated subgrades. These limitations result in escalating maintenance costs, reduced structural performance, and increased environmental impact. This study evaluates ionic soil stabilization as a technically feasible, economically viable, and environmentally responsible alternative to traditional asphalt pavement construction. The research integrates theoretical analysis, literature review, laboratory testing, field performance data, and comparative cost assessment derived from real-world stabilization projects. Particular emphasis is placed on the physicochemical mechanisms governing ionic stabilization and their influence on soil bearing capacity and moisture susceptibility. Results indicate significant improvements in subgrade strength and measurable reductions in material consumption and projected life-cycle costs. The findings suggest that ionic soil stabilization offers a structurally sound and sustainable alternative for infrastructure projects, particularly in regions characterized by clay-rich soils and limited maintenance capacity.