Abstract
<jats:p>It is well known that numerous important characteristics of concrete, such as water resistance, water impermeability, and chemical and corrosion resistance, are improved by using active mineral additions. These are inorganic powder materials that contain silica and/or alumina in a reactive (amorphous) form. Most often, these additions are obtained by grinding natural rocks (natural pozzolans) or products that have undergone heat treatment, which has led to a change in their chemical composition (artificial pozzolans). This paper considers the possibility of obtaining an active mineral addition from finely ground waste glass. Information is presented concerning the phase composition of the addition, and its influence on the characteristics of cement pastes, cement-sand mortar, and concrete is studied. The use of such mineral additions contributes simultaneously to reducing the amount of waste and the dosage of cement in concrete, i.e. both economic and environmental effects are achieved.</jats:p>