QUANTIFICATION OF CO2 EMISSIONS FOR PAVERS WITH PARTIAL REPLACEMENT OF SAND BY ASHES FROM SUGAR CANE BAGASSE

Abstract

Excessive production of agro-industrial wastes with no adequate solution is a fact. Sugar and Alcohol Plants produce enormous amounts of ashes from the burning of sugar cane bagasse (SCB) used for the co-generation of electric energy. The civil construction sector demands high amount of materials which are becoming rare and derived from production processes with high rates of gases with greenhouse effects. On the other hand, the sector has a great capacity to absorb different types of wastes. Current research investigates the environmental potential through a decrease in CO2 emissions due to ashes derived from the burning of sugar cane bagasse as a partial replacement of small aggregates (sand) in the manufacture of concrete for pavers. Its efficiency has already been proved with QE-CO2 method proposed by Costa (2012). Replacement of SCB was environmentally viable and provided gains in greenhouse gas reduction.