Variables Governing Strength of Compacted Soil–Fly Ash–Lime Mixtures

Abstract

The practice of treating soil with fly ash and lime is an attractive technique when the project requires improvement of the local soil for the construction of stabilized bases under pavements, as a support layer for shallow foundations, to strengthen slopes in slope stability problems, and to prevent sand liquefaction. Currently, efforts are being made to develop dosage methodologies for improved soils based on a rational criterion as it exists in concrete technology, in which the water-cement ratio plays a fundamental role in the assessment of the target strength. This study evaluates the strength controlling parameters of a sandy soil treated with fly ash and lime and shows that the voids-lime (