Evaluation of bagasse ash as supplementary cementitious material

Ganesan, K.; Rajagopal, Κ. R.; Thangavel, K.

doi:10.1016/j.cemconcomp.2007.03.001

Cited by 560 publications

(282 citation statements)

References 13 publications

(18 reference statements)

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“…This contamination has been commonly detected in SCBA samples. 8,14,17,18 When SCS samples were pretreated prior to burning, the presence of quartz was not detected. Interestingly, WW-SCSA exhibited a pattern similar to that of HL-SCSA, although the hot washing was a considerably simpler procedure as compared to acid leaching.…”

Section: Oxide Percentages Loss On Ignition and X-ray Diffraction Omentioning

confidence: 99%

“…6 Sugar cane bagasse ash (SCBA) has been used as a supplementary cementitious material (or simply referred to as pozzolan) for Portland cement in concrete. [7][8][9][10] The pozzolanic activity of a material is related to its potential to generate amorphous siliceous/aluminous compounds that will chemically react with calcium hydroxide in the presence of water at ambient temperature to produce calcium silicate hydrate. It is well known that SCBA presents pozzolanic activity due to its high silica content and the presence of partially amorphous silica, associated with its high specific surface area.…”

Section: Introductionmentioning

confidence: 99%

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Study on the pozzolanic activity of sugar cane straw ash produced using different pretreatments

Cordeiro¹,

Vieira²,

Lopes³

2017

Quim. Nova

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This work systematically describes a laboratory study on different pretreatments of sugar cane straw to produce pozzolanic ash. Two procedures were used to accelerate the hydrolysis of celluloses and hemicelluloses and remove metallic impurities present in significant levels in sugar cane straw: hot water washing and acid leaching. Proximate analysis by thermogravimetry was carried out to cover volatile matter, fixed carbon, and ash content of the different straws. Detailed measurements of X-ray diffraction, oxide percentages, loss on ignition, and BET specific surface area were performed to compare hot water washed, acid leached, and nonpretreated ashes, after controlled processes of burning and grinding. The pozzolanic activity of the ashes was evaluated from the modified Chapelle and electrical conductivity methods. The results revealed that ashes with a high content of amorphous silica were produced, in spite of the straw pretreatments. However, both straw pretreatments induced a significant increase in pozzolanic activity, mainly associated with the removal of impurities, especially CaO, SO 3 , K 2 O, and carbon compounds. The effect of the hot water washing treatment was relatively small in relation to the acid leaching, but the hot washed ash was significantly more pozzolanic than non-treated ash.

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Section: Oxide Percentages Loss On Ignition and X-ray Diffraction Omentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the pozzolanic activity of sugar cane straw ash produced using different pretreatments

Cordeiro¹,

Vieira²,

Lopes³

2017

Quim. Nova

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“…Muitas pesquisas sobre as aplicações de resíduos agroindustriais na forma de adições minerais têm-se desenvolvido nas últimas décadas, dentre as quais se destacam os estudos efetuados com as cinzas de casca de arroz (Bui et al, 2005;Tashima et al, 2011;Sata et al, 2012) e as cinzas de bagaço e de palha de cana-de-açúcar (Martirena et al, 2006;Ganesan et al, 2007;Frías et al, 2011;Guzmán et al, 2011), que se situam entre os resíduos gerados em quantidades significativas na agroindústria brasileira.…”

Section: Introductionunclassified

Cinza de palha de cana-de-açúcar como adição mineral em fibrocimento

Rodrigues

Beraldo

Júnior

et al. 2013

Rev. bras. eng. agríc. ambient.

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RESUMOO Brasil é o maior produtor mundial de cana-de-açúcar e sua indústria sucroalcooleira gera grande quantidade de resíduos líquidos e sólidos, dentre eles a palha da cana-de-açúcar. Com o objetivo de agregar valor a este resíduo produziu-se, neste trabalho, cinza de palha de cana-de-açúcar por meio da queima controlada a 700 °C e se avaliou sua aplicação como adição mineral em compósitos de fibrocimento. A cinza foi caracterizada pelas técnicas de fluorescência de raios X, difração de raios X, granulometria a laser e superfície específica. Nos compósitos foram avaliadas as propriedades de absorção de água, porosidade aparente, massa específica aparente, módulo de ruptura, energia específica, módulo de elasticidade e limite de proporcionalidade. A caracterização das cinzas indicou superfície específica e porosidade elevadas, além de apresentar um halo de amorficidade no seu difratograma. Compósitos produzidos com as cinzas mostraram características físicas e mecânicas similares àquelas do controle o que viabiliza a substituição parcial do cimento Portland por esse tipo de cinzas. Palavras-chave: pozolana, resíduos agroindustriais, porosidadeSugarcane straw ash as mineral addition in fiber-cement ABSTRACT Brazil is the world's largest producer of sugarcane, and its sugarcane industry generates a large amount of liquid and solid wastes, among them the sugarcane straw. Aiming to add value to this waste, sugarcane straw ash was produced by controlled burning at 700 °C and it was applied as mineral addition in cement composites. The ashes were characterized by the techniques of X ray fluorescence, X ray diffraction, laser particle size and specific surface area. The following composite properties were evaluated: water absorption, apparent porosity, bulk density, modulus of rupture, specific energy, elastic modulus and proportionality limit. The characterization of ash showed a high specific surface area and porosity and a halo of amorphicity was observed in the diffractograms. Composites produced with these ashes showed physical and mechanical characteristics similar to that of the control, allowing the partial replacement of Portland cement by this type of ashes.

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“…Ganesan et al, 2007 [2] the utilization of waste materials in concrete such as Agro wastes like rice husk ash, wheat straw ash, hazel nutshell and sugarcane bagasse ash are used as pozzolanic materials for the development of blended cements. Noor-ul-Amin 2010 [3] Bagasse ash has been utilized in the high strength which not only improves the early strength but also increases the compactness of the concrete and enhanced the high early strength and resistance to chloride diffusion and the water permeability.…”

Section: Literature Reviewmentioning

confidence: 99%

An Experimental Investigation on Strength and Chloride ion Permeability Characteristics of Concrete by Partial replacement of Sugar Cane Bagasse Ash with Fine Aggregate

2017

IJMTER

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Abstract-Today researches all over the world are focusing on ways of utilizing either industrial or agricultural wastes as a source of raw materials for the construction industry. These wastes utilization would not only be economical, but may also help to create a sustainable and pollution free environment. Sugar-cane bagasse is one such fibrous waste-product of the sugar refining industry, along with ethanol vapor. Bagasse ash mainly contains aluminum ion and silica. In the present work the agricultural waste product like Sugar Cane Bagasse Ash (SCBA) is used as alternate filler material to sand. This will result in saving sand.The bagasse ash used for the project work is obtained from Pandavapura Sahakara Sakkare Karkhane (PSSK), Pandavapura. In this experiment study to conducted to examine the potential of Bagasse ash as a fine aggregate replacing material. The different concrete mixes are prepared with the Bagasse Ash of 0%, 5%, 10%, 15%, 20%, 25% and 30% replacement by weight of fine aggregate in concrete for M30 grade concrete with water to cement ratio of 0.44.The properties of these mixes are assessed both at the fresh and hardened state. Fresh concrete tests like slump cone test are undertaken along with hardened concrete tests like compressive strength, split tensile strength flexure strength test and rapid chloride ion permeability test (RCPT) as per codal provisions. The results of the present study depicts that up to 20% replacement of the fine aggregate by SCBA achieved a higher mechanical strength and lower chloride ion permeability at 28 days of curing. The result shows that bagasse ash can be a suitable replaced to fine aggregate.

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Evaluation of bagasse ash as supplementary cementitious material

Cited by 560 publications

References 13 publications

Study on the pozzolanic activity of sugar cane straw ash produced using different pretreatments

Study on the pozzolanic activity of sugar cane straw ash produced using different pretreatments

Cinza de palha de cana-de-açúcar como adição mineral em fibrocimento

An Experimental Investigation on Strength and Chloride ion Permeability Characteristics of Concrete by Partial replacement of Sugar Cane Bagasse Ash with Fine Aggregate

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