Evaluation of the Pozzolanic Activity of Glass Powder in Three Maximum Grain Sizes

The addition of pozzolans has a potentially important role in the cement industry since using waste from other industries environmental benefits, including reduced CO2 emissions production. This study evaluates pozzolanic activity glass powder three different particle sizes (150 µm, 75 and 45 upper limits) compares results with those added technical standards found literature. Pozzolanicity was determined by four methods: Pozzolanic Activity Index (PAI) lime, Performance (PI) Portland cement, electric conductivity, modified Chapelle. Chapelle electrical conductivity trials indicated all studied. PAI lime revealed µm fraction while performance index showed pozzolanicity fractions according to ASTM C 618-05 (2005). It is concluded that smallest provided better reaction rates due larger contact surfaces are, therefore, considered pozzolans.