APPLICATION OF ZEOLITIZED GLASS POWDER IN CEMENT-BASED MATERIALS

There is a lot of industrial and household waste in the world. Rational use of the waste by applying new technological solutions can significantly reduce energy consumption and emissions into the environment. Waste glass is one of such waste that, if non-utilized, fully decomposes in nature within a few thousand years. This paper presents the research of colourless ground waste glass used as a substitute for Portland cement. Glass powders were zeolitized to improve the pozzolanic properties of the material. The research results showed that hydration temperature and compressive strength of the specimens with 5% and 10% of the cement replaced by zeolitized admixture is similar or higher compared with the specimens where nonzeolitized glass powder is used. In summary it can be concluded that zeolitization of ground glass powder is feasible only in the production of specialized concrete products.