Estudo da eficiência do resíduo de vidro moído na substituição parcial do cimento Portland em argamassas

Abstract

In a global context marked by intensifying climate change, the construction industry stands out as one of the leading emitters of greenhouse gases, particularly due to the production of Portland cement. In this context, the search for alternatives that combine technical performance with a lower environmental impact has become urgent. Among these alternatives, one of the most viable is the replacement of Portland cement with a supplementary cementitious material. Accordingly, this study investigates the use of ground glass waste (GGW) as a supplementary cementitious material (SCM) in mortars that use Portland cement. The research involves evaluating calcium hydroxide consumption in cement pastes and the compressive strength of the mortars. The results indicated possible pozzolanic activity in the thermal analysis; however, further testing would be necessary to draw a definitive conclusion. Finally, the mortars exhibited a loss of compressive strength, indicating low efficiency of MSG as a cementitious supplementary material, with a 15% replacement rate yielding the best performance.