Abstract
This study evaluated the feasibility of using sugar cane bagasse ash (SCBA), a by-product of the sugar cane ethanol industry, obtained under controlled calcination as a partial replacement for Portland cement in mortars. Materials with pozzolanic characteristics may be used to partially replace cement in mortars or concrete and are known to provide durability to the products. Initially, TG/DTA curves of the sugar cane bagasse were conducted to define suitable calcination temperatures (500oC, 600oC and 700oC), and tests were conducted to characterize the physical-chemical parameters of the SCBA and the pozzolanic activity according to NP EN 196-5. The results showed the technical feasibility of using the SCBA as a pozzolanic material in construction, which would provide an alternative to proper disposal for this waste while providing products with high technical performance.
Highlights
IntroductionBrazil has become the largest producer of sugar cane and sugar and ethanol made from sugar cane
Sugar cane is one of the most significant products of the Brazilian economy
This study evaluates the pozzolanic activity of calcined sugarcanesugar cane bagasse ash (SCBA) in cementitious matrices and determines the best calcination temperature for its production
Summary
Brazil has become the largest producer of sugar cane and sugar and ethanol made from sugar cane This ethanol is gaining popularity on the international market with the growing demand for new clean energy alternatives. Due to this demand, the sugar cane ethanol industry will continue to grow in the coming years, causing an increase in waste generated by this industry. The sugar cane ethanol industry will continue to grow in the coming years, causing an increase in waste generated by this industry This waste has the potential to cause serious environmental problems if it is improperly disposed. The average rate of increase in annual production expected until 2018-2019 is 3.25%1
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