Participation of coloured glass cullet in cementitious materials

In this paper fundamental aspects of the pozzolanic activity of the three most common coloured glass cutlet in Greece and of vitrified fly ash were studied. Furthermore, the problem of ASR in mortar systems with high content of finely ground glass cullet was estimated. The chemical behaviour of the added cullet in the cement was determined by XRD, DTA-TG and SEM observations and additionally mechanical tests, metal leaching examination and pore measurements were carried out. Green cutlet appeared to be the most pozzolanic material followed by the flint glass. None of studied materials have shown any expansion, due to the deleterious ASR reaction. The potential utilisation of coloured glass cullet in various cementitious products is very encouraging especially for decorative and architectural applications. (C) 2004 Elsevier Ltd. All rights reserved.