Pozzolanic Characterization of Cuban Bamboo Leaf Ash: Calcining Temperature and Kinetic Parameters

Villar-Cociña, E.; Júnior, Holmer Savastano; Rodier, Loïc; Lefrán, Manuel; Frías, Moisés

doi:10.1007/s12649-016-9741-8

Cited by 30 publications

(19 citation statements)

References 37 publications

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“…The XRD results agree with the analysis of amorphous silica content since the silica presented a high content of amorphous silica which resulted in the baseline deviation and the crystalline peaks of quartz represents the remaining crystalline silica, 7.67% of the total amount of silica. The BLA found in literature showed a deviation in the baseline characteristic of an amorphous material [34,35,37], as well as quartz [37], calcite and cristobalite [35,37] and calcium sulfate [35]. The fineness of the ash has a direct influence on its physical and chemical behaviour in the cementitious matrix; thus, the particle size distribution of the ash, after 15 kg milled for minutes in a ball mill, is shown in Figure 4.…”

Section: Bamboo Leaf Ash (Bla) Characterizationmentioning

confidence: 84%

“…Nevertheless, research has been undertaken to transform this waste into a sustainable alternative for civil construction. The first researchers to study this material were Dwivedi et al [32], and Singh et al [33], followed by Villar-Cociña et al [34], Frías et.al [35], Roselló et al [36] and Villar-Cociña et al [37]. These researches concluded that the bamboo leaf ash have good pozzolanic behaviour and high reactivity.…”

Section: Introductionmentioning

confidence: 99%

“…As opposed to previous studies [32][33][34][35][36][37], this BLA was produced through an autocombustion process in a furnace with no controlled temperature, a simple method like that applied in a thermoelectric plant, without consuming power. This production method yields a more realistic ash for further uses than those obtained using an electric furnace with temperature control.…”

Section: Introductionmentioning

confidence: 99%

“…The ashes presented lower values of LOI (8.04% and 3.83%, respectively) and Al2O3 (1.22% and 1.01%, respectively), which shows a similar chemical composition but with differences that may be due to the type and composition of the soil and climate. Cuban ash calcinated at 700 °C[37] presented a more distinctive chemical composition, with an LOI of 3.98% and SiO2, K2O, CaO and SO3 percentages of 74.7%, 5.14%, 4.48% and 4.18%, respectively.…”

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confidence: 99%

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Production of bamboo leaf ash by auto-combustion for pozzolanic and sustainable use in cementitious matrices

Moraes

Tashima

et al. 2019

Construction and Building Materials

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In the context of world concern with the environment, this study aims to characterize an auto-combustion produced bamboo leaf ash (BLA) by its pozzolanic behaviour, reactivity and its influence in the total porosity, pore size distribution, tortuosity and mechanical behaviour of cementitious matrices. The chemical and physical characterization of the BLA was carried using X-ray fluorescence, determination of amorphous silica content, X-ray diffraction, Fourier Transform Infrared Spectrophotometry (FTIR), laser granulometry and field emission scanning electron microscopy (FESEM). The assessed BLA is a siliceous material (74.23%) with an amorphous nature due to the amorphous silica content, which represents 92.33% of the total silica. The BLA was classified as highly reactive by assessing its pH and conductivity in a saturated calcium hydroxide (CH) medium for different proportions and temperatures. Frattini analysis, the study of CH:BLA pastes (Thermogravimetric analysis and FTIR) and Portland cement (OPC) /pozzolan pastes (Thermogravimetric analysis and FESEM) are in agreement with this classification. The replacement of OPC by BLA improved the mechanical behaviour of the cementitious matrices, as well their durability. All the mortars containing BLA presented very similar compressive strength to a control mortar (100% OPC) after only 3 days of curing and at the following tested curing ages: 7, 28 and 90 days. In the mercury intrusion porosimetry analysis, the pastes with 20 and 30% BLA content presented higher tortuosity or fewer connected pores than the control paste. Thus, the auto-combustion method proved to be successful and BLA is a suitable alternative for sustainable highperformance matrices.

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Section: Bamboo Leaf Ash (Bla) Characterizationmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Production of bamboo leaf ash by auto-combustion for pozzolanic and sustainable use in cementitious matrices

Moraes

Tashima

et al. 2019

Construction and Building Materials

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“…Certain amounts of heat can turn bamboo leaves in siliceous ashes with more than 70% of SiO2 in its chemical composition (DWIVEDI et al, 2006;VILLAR-COCIÑA et al, 2011;FRÍAS et al, 2012;UJENE, 2014;ROSELLÓ et al, 2015;ODESOLA, 2015;DHINAKARAN;CHANDANA, 2016;OLADUNMOYE, 2017;MORAES et al, 2019;RODIER et al, 2019) and, also, reduce potassium (K) and chloride (Cl) levels in the ashes (ROSELLÓ et al, 2015). As well as in sugarcane bagasse ashes (YADAV et al, 2020), temperature and duration of the calcination process directly implies the pozzolanic reactivity and the amorphous silica content in the ashes (VILLAR-COCIÑA et al, 2018).…”

Section: Chemical Compositionmentioning

confidence: 99%

Bamboo ashes as an eco-friendly alternative to cement - a systematic review

Carvalho

Velasco

2021

ForScience

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Cement production impacts the environment from raw materials extraction to its industrialized production. Implementing supplementary cementitious materials (SCM) to replace cement is an economical and sustainable practice. Agricultural wastes, for example, represent a new source of SCM studied over the last decades, mainly due to its high generation around the world. Among the published review papers about agro-waste in civil construction, bamboo ashes (BA) appear secondary in large-scale studies. Thus, this work aimed to evaluate BA potential use in the construction industry as cement replacement by identifying their behavior in cementitious compounds and discovering the research gaps about this topic. We overviewed the published literature about concrete made with BA, synthesizing data about BA chemical composition and mechanical and physical characteristics of cementitious materials made with these ashes. We identified a preference for bamboo leaves ashes as SCM, potentially due to its high silica amount. However, other biological and environmental parameters that alter the bamboo chemical composition were not discussed in the papers. Concerning compressive strength, 90% of the studies with BA reported cementitious materials with a strength activity index acceptable for use. This review also identified an optimal percentage of cement replacement with BA ranging from 8% to 12% in concrete specimens. Concrete and mortar with BA also showed a lower density than the reference samples made only with cement. We concluded that BA are promising alternatives to replace cement since they provide desirable mechanical and physical characteristics to concrete and meet sustainability requirements. Besides that, we raised some topics that may guide future researches: (1) the natural and artificial parameters that affect BA composition; (2) BA chemical and physical behavior under microscopical conditions in cementitious composites; and (3) the economic advantages associated with replacing cement with BA. Keywords: Cement substitutes. Addition. Artificial pozzolan. Sustainability. Supplementary cementitious materials. Cinzas de bambu como alternativa eco-amigável ao cimento - uma revisão sistemática Resumo A produção de cimento impacta o meio ambiente desde a extração de matérias-primas até sua produção industrializada, o que reforça a demanda por materiais cimentícios suplementares (MCS) para substituir, mesmo que parcialmente, o uso do cimento. Os resíduos agrícolas, por exemplo, são um bom exemplo de MCS estudado nas últimas décadas, principalmente devido à sua alta geração em todo o mundo. Dentre os artigos de revisão publicados sobre o uso de resíduos agrícolas na construção civil, as cinzas de bambu figuram apenas como subtópico em estudos maiores. Logo, esse trabalho objetivou avaliar o potencial do uso de cinzas de bambu na indústria da construção civil como substituinte parcial ao cimento identificando seu comportamento em compostos cimentícios e sugerindo temas para pesquisas futuras. Esta revisão sistemática fornece uma visão geral da literatura publicada sobre argamassas e concretos feito com cinzas de bambu, sintetizando dados sobre a composição química dessas cinzas e as características mecânicas e físicas dos materiais cimentícios feitos com elas. Identificou-se uma preferência pelo uso de cinzas de bambu advindas da calcinação das folhas dessa planta, potencialmente devido ao seu alto teor de sílica. No entanto, existem parâmetros biológicos e ambientais que alteram a composição química do bambu e que não são discutidos pelos artigos. Quanto à resistência, 90% dos estudos que empregaram cinzas de bambu reportaram à resistência compressão admissível para uso em construções. Levantou-se, também, que a porcentagem ideal de substituição de cimento por cinzas de bambu varia de 8% a 12% em amostras de concreto. Os materiais cimentícios com cinzas de bambu também apresentaram densidade menor que a das amostras de referência feitas apenas com cimento. Conclui-se pelo estudo que as cinzas de bambu são alternativas promissoras para substituir parcialmente o cimento visto que elas proporcionam boas características mecânicas e físicas ao concreto e atendem a demandas sustentáveis. Além disso, foram levantadas lacunas na literatura que podem guiar futuras pesquisas, quais sejam: (1) os parâmetros naturais e artificiais que afetam a composição química das cinzas de bambu; (2) o comportamento químico e físico de cinzas de bambu em compósitos cimentícios sob condições microscópicas; e (3) as vantagens econômicas associadas a substituir parcialmente cimento por cinzas de bambu. Palavras-chave: Substitutos do cimento. Adição. Pozolana artificial. Sustentabilidade. Materiais cimentícios suplementares.

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Agricultural waste

Chang

2019

Water Environment Research

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The management of agricultural waste has become very important because the inappropriate disposal yields negative effects on the environment. The resource recovery from agricultural waste which converts waste into available resources can reduce the waste and new resource consumption. This review summarizes the 2018 researches of over three hundred scholar papers from several aspects: agricultural waste, and, waste chemical characterization, agricultural waste material, adsorption, waste energy, composting, waste biogas, agricultural waste management, and others.

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Pozzolanic Characterization of Cuban Bamboo Leaf Ash: Calcining Temperature and Kinetic Parameters

Cited by 30 publications

References 37 publications

Production of bamboo leaf ash by auto-combustion for pozzolanic and sustainable use in cementitious matrices

Production of bamboo leaf ash by auto-combustion for pozzolanic and sustainable use in cementitious matrices

Bamboo ashes as an eco-friendly alternative to cement - a systematic review

Agricultural waste

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