Reuse of sugarcane bagasse ash (SCBA) to produce ceramic materials

Souza, Agda Eunice de; Teixeira, Silvio Rainho; Santos, G. T. A.; Costa, Francine Bettio; Longo, Elson

doi:10.1016/j.jenvman.2011.06.020

Cited by 107 publications

(45 citation statements)

References 22 publications

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“…SCBA can potentially replace cement for up to 20% (Ganesan et al, 2007;). The use of this material as an additive to produce clay bricks and roof tiles has also been reported (Souza et al, 2011;Faria et al, 2012). It should be noted that the chemical, mineralogical and pozzolanic properties of SCBA depend on the industrial process from which it has been obtained (Frias, 2011;Cordeiro, 2009a).…”

Section: Introduction 1 2mentioning

confidence: 95%

“…As a part the productive process of the sugar industry, sugar cane stalks are ground to extract the juice, the remaining fibrous residue, called bagasse, is one of the most valuable products in the sugar industry as its net calorific value is about 8000 kJ/kg (Batra et al, 2008). It is common practice to burn bagasse in boilers operating at temperatures around 700 °C and 900 ° C to produce steam and useful energy for the processes and needs of the factory (Souza et al, 2011). The efficiency of boilers used in the mills is typically 60-70% because the bagasse is significantly fibrous, has low density, high moisture and requires fuel such as coal for its combustion (Rasul, 2000).…”

Section: Introduction 1 2mentioning

confidence: 99%

See 1 more Smart Citation

Characterization of sugar cane bagasse ash as supplementary material for Portland cement

Agredo¹,

Gutiérrez²,

Giraldo³

et al. 2014

ing.inv.

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Sugar Cane Bagasse is a by-product of the sugar agro-industry; it is partly used as fuel. However, bagasse ash (SCBA) is considered waste, which creates a disposal problem. Furthermore, if sugar cane bagasse is burned under controlled conditions, the SCBA can be potentially reused. This paper considers the technical viability of using SCBA as a partial replacement for cement. Two samples of SCBA from a Colombian sugar industry were characterized. The chemical composition of the samples shows high percentages of silica, 76.3% and 63.2%. The mineralogical and morphological characteristics of the waste were determined by X-ray diffraction patterns (XRD), thermal analysis (TG/DTA) and scanning electron microscopy (SEM). The pozzolanic activity of SCBA was evaluated using the Frattini test and the strength activity index test (SAI). The ASTM C618 defines an SAI of at least 75% as a requirement for classifying material as a pozzolan. This condition was achieved in the experiments performed. The results indicate that SCBA produced in the manufacture of commercial cements can be recycled for use as pozzolanic material. This supplementary material can partially replace cement and therefore reduce CO2 emissions.Keywords: Sugar cane bagasse ash, Portland cement, pozzolan, blended cement. RESUMENEl bagazo de caña es un subproducto de la agroindustria azucarera; el cual es utilizado particularmente como combustible. Sin embargo, la ceniza de bagazo (CBA) ha sido considerada como un residuo que causa problemas de disposición. Por lo tanto, si el bagazo de caña, fuera quemado bajo condiciones controladas, la CBA tendría un potencial para su re utilización. Este artículo considera la viabilidad técnica para el uso de la CBA como reemplazo parcial del cemento Portland; en los ensayos se caracterizaron dos muestras de CBA de una industria azucarera colombiana, en los cuales la composición química presentó altos porcentajes de sílice en un 76.3% y 63.2%. Las características mineralógicas y morfológicas fueron determinadas por las técnicas de difracción de rayos X (DRX), análisis térmico (TG/ATD) y microscopía electrónica de barrido (MEB). La actividad puzolánica de la SCBA fue evaluada utilizando el ensayo de Frattini y el índice de actividad por resistencia mecánica (IAR). La norma ASTM C618 define un índice IAR de al menos el 75% para clasificar un material como una puzolana; esta condición fue alcanzada en estos ensayos. Los resultados indican que la CBA puede ser reciclada como un material puzolánico en la fabricación de cementos comerciales así, dicho material suplementario puede reemplazar parcialmente el cemento y por lo tanto reducir las emisiones de CO2.Palabras clave: ceniza de bagazo de caña, cemento Portland, puzolana, cementos adicionados.

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Section: Introduction 1 2mentioning

confidence: 95%

Section: Introduction 1 2mentioning

confidence: 99%

Characterization of sugar cane bagasse ash as supplementary material for Portland cement

Agredo¹,

Gutiérrez²,

Giraldo³

et al. 2014

ing.inv.

View full text Add to dashboard Cite

show abstract

“…Bagasse represents one quarter of sugarcane mass [24], and 80% of this by-product is burned in order to generate energy [25]. After the burning process, approximately 2.5% (by mass) of the bagasse remains as ashes, called sugarcane bagasse ash [26]. Nowadays, this waste is being researched as a pozzolanic material [27], but there are fewer studies on its use in alkali-activated binders [28,29].…”

Section: Introductionmentioning

confidence: 99%

Study of the binary system fly ash/sugarcane bagasse ash (FA/SCBA) in SiO2/K2O alkali-activated binders

Castaldelli

Moraes

Akasaki

et al. 2016

Fuel

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Due environmental problems related to Portland cement consumption, many studies have been performed to diminish its use. One solution is the development of alkali-activated binders, which can decrease CO 2 emissions and energy consumption by 70% when compared to Portland cement production. In addition, an alkali-activated binder presents mechanical properties similar to Portland cement mixtures, which turns into an interesting material in civil construction. Aluminosilicate-based materials are important raw materials to produce the alkali-activated binders. Therefore, two residues are presented as an aluminosilicate source in this study: fly ash (FA) and sugarcane bagasse ash (SCBA). Both residues were obtained from a combustion process to generate energy, the former from coal and the latter from the bagasse of the sugarcane industry. In addition, the alkaline activating solution is an important factor to achieve improved mechanical properties. In this context, this study investigated the influence of four different SiO 2 /K 2 O molar ratios (0, 0.36, 0.75 and 1.22) in the activating solution with a constant water content, and three FA/SCBA binder proportions (75/25, 50/50 and 25/75). Microstructural characterization was carried out by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, mercury intrusion porosimetry, pH and electrical conductivity measurements to study the evolution of the reaction process. The compressive strength of mortars was assessed in order to determine the optimum SiO 2 /K 2 O molar ratio and FA/SCBA ratio. The tests showed that a SiO 2 /K 2 O molar ratio of 0.75 and FA/SCBA proportion of 75/25 provided the best mechanical properties.

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“…The percent of shrinkage of all the prepared supports were about 24%. Normally, the apparent porosity were conducted by analytical balance and Archimedes' method [36]. The porous ceramic supports were prepared from pore former of 2.5 and 5.0 wt% of activated carbon and 2.5 and 5.0 wt% of calcite denoted as 2.5A and 5A and 2.5Ca and 5Ca, respectively.…”

Section: Preparation Of Porous Ceramic Discsmentioning

confidence: 99%

Facile Hydrothermal Synthesis of Zeolitic ANA Membrane from Raw Kaolin

Khumbudda

Chaisena

Rangsriwatananon

2016

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Abstract. The present paper reported a preparation of zeolitic ANA (analcime) membrane on porous ceramic support by in situ synthesis method using raw kaolin as SiO2 and Al2O3 source with the molar composition of Al2O3 • 2.3SiO2 • 3.6Na2O • 140.4H2O at hydrothermal temperature 200 ºC. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to characterize the ANA membrane. The effects of aging time and hydrothermal time on the synthesis were investigated. The porous ceramic supports were prepared by adding 10.0 wt% of cristobalite and varying an amount of pore formers (activated carbon and calcite) by sintering at 1400 ºC. This resulted in the high crystallinity of ANA observed on the support which was prepared from mixing of 2.5 wt% of activated carbon and 2.5 wt% of calcite. In addition to aging, it was observable that small crystals seemed to spread completely on the support within 3 days of aging. It seems that the longer the hydrothermal time is, the more obvious the crystals tightly bound with the support becomes.

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Reuse of sugarcane bagasse ash (SCBA) to produce ceramic materials

Cited by 107 publications

References 22 publications

Characterization of sugar cane bagasse ash as supplementary material for Portland cement

Characterization of sugar cane bagasse ash as supplementary material for Portland cement

Study of the binary system fly ash/sugarcane bagasse ash (FA/SCBA) in SiO2/K2O alkali-activated binders

Facile Hydrothermal Synthesis of Zeolitic ANA Membrane from Raw Kaolin

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