Experimental evaluation of fly ash and lime stabilization on the geotechnical characteristics of expansive clay for road subbase applications (opens in new tab)

Expansive clay soils pose significant challenges in road construction due to their high plasticity, swelling potential, and low bearing capacity. This study investigates the combined use of fly ash, lime, and waste tyre granules as sustainable stabilizing agents, addressing a gap in existing research. Laboratory tests were conducted to assess the geotechnical properties of treated and untreated soils. The results revealed that the natural soil was classified as A-6 according to AASHTO, with 8...