Abstract:
The study of waste potential use in cementitious matrix is important to concrete technology. In this context, this study used a waste from sugarcane mills, the sugarcane bagasse ash sand (SBAS). This waste is generated on a large scale, in the State of São Paulo is estimated at 6,000 tons / day. This study aimed to analyze the pozzolanicity of SBAS samples in different particle sizes. Therefore, samples were collected in a sugarcane mill and grinded in the laboratory. Firstly the following characterization tests were performed: laser size distribution, specific gravity, X-ray fluorescence spectrometry and X-ray diffraction. Then were performed the modified Chapelle test (NBR 15895:2010), the activity index with lime (NBR 5751:2015) and the performance index with Porltland cement (NBR 5752:2014). Through the results, it was found that the samples did not show sufficient reactivity for use as pozzolan in cimentitious matrix.
The study of waste potential use in cementitious matrix is important to concrete technology. In this context, this study used a waste from sugarcane mills, the sugarcane bagasse ash sand (SBAS). This waste is generated on a large scale, in the State of São Paulo is estimated at 6,000 tons / day. This study aimed to analyze the pozzolanicity of SBAS samples in different particle sizes. Therefore, samples were collected in a sugarcane mill and grinded in the laboratory. Firstly the following characterization tests were performed: laser size distribution, specific gravity, X-ray fluorescence spectrometry and X-ray diffraction. Then were performed the modified Chapelle test (NBR 15895:2010), the activity index with lime (NBR 5751:2015) and the performance index with Porltland cement (NBR 5752:2014). Through the results, it was found that the samples did not show sufficient reactivity for use as pozzolan in cimentitious matrix.
Reference:
MORETTI, Juliana Petermann; SALES, Almir; QUARCIONI, Valdecir Ângelo; SANTOS, Rafael Francisco Cardoso dos. Análise da atividade pozolânica da areia de cinza do bagaço da cana-de-açúcar. In: CONGRESSO BRASILEIRO DO CONCRETO, 58., 2016, Belo Horizonte. Anais… 12 p.
