Pozzolanic Reaction in Clayey Soils for Stabilization Purposes: A Classical Overview of Sustainable Transport Geotechnics

Problematic soil stabilization processes involve the application of binders to improve engineering properties soil. This is done change undesirable these soils meet basic design standards. However, very little attention has been given reactive phase stabilization. most important in every protocol because it embodies reactions that lead bonding dispersed particles clayey Hence, this reviewed. When which make up greatest fraction expansive come contact with moisture, they experience volume changes due adsorbed moisture forms films double diffused layer on particles. happens, disperse and float, increasing pore spaces or voids exist mass. Stabilizations are conducted close gaps between achieved by mixing additives will release calcium, aluminum, silicon, etc., presence a hydration reaction occurs. followed displacement based metallic order electrochemical series. causes calcination reaction, process whereby calcium displaces hydrogen ions dipole sodium ion responsible for swelling potential soils. These whole pozzolanic finally alumina-silica hydrate. formation