Análise da influência das cinzas do bagaço de cana-de-açúcar no comportamento mecânico de concretos

Sampaio, Z. L. M.; Souza, Pires; Gouveia, B. G.

doi:10.1590/s1983-41952014000400006

Cited by 8 publications

(5 citation statements)

References 2 publications

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“…Workability of concrete reduces with the increase in the amount of SCBA content in the concrete mix [107]. The loss of workability is attributed to the fineness of SCBA (which is lower than cement), which absorb more water from the mix, leaving concrete drier, and consequently, less workable [108].…”

Section: Agricultural Wastes As Cement or Aggregate Replacement Inmentioning

confidence: 99%

“…However, there is uncertainty about the optimum content of SCBA in concrete as the current results show variability in concrete strength with SCBA replacement ranging from 5% to 25%. Nevertheless, the use of SCBA in addition to the concrete is a very feasible option in improving the mechanical properties of the concrete, besides providing a suitable destination to agroindustrial by-product [107].…”

Section: Agricultural Wastes As Cement or Aggregate Replacement Inmentioning

confidence: 99%

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Agricultural Solid Waste as Source of Supplementary Cementitious Materials in Developing Countries

et al. 2019

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Concrete production utilizes cement as its major ingredient. Cement production is an important consumer of natural resources and energy. Furthermore, the cement industry is a significant CO2 producer. To reduce the environmental impact of concrete production, supplementary cementitious materials such as fly ash, blast furnace slag, and silica fume are commonly used as (partial) cement replacement materials. However, these materials are industrial by-products and their availability is expected to decrease in the future due to, e.g., closing of coal power plants. In addition, these materials are not available everywhere, for example, in developing countries. In these countries, industrial and agricultural wastes with pozzolanic behavior offer opportunities for use in concrete production. This paper summarizes the engineering properties of concrete produced using widespread agricultural wastes such as palm oil fuel ash, rice husk ash, sugarcane bagasse ash, and bamboo leaf ash. Research on cement replacement containing agricultural wastes has shown that there is great potential for their utilization as partial replacement for cement and aggregates in concrete production. When properly designed, concretes containing these wastes have similar or slightly better mechanical and durability properties compared to ordinary Portland cement (OPC) concrete. Thus, successful use of these wastes in concrete offers novel sustainable materials and contributes to greener construction as it reduces the amount of waste, while also minimizing the use of virgin raw materials for cement production. This paper will help the concrete industry choose relevant waste products and their optimum content for concrete production. Furthermore, this study identifies research gaps which may help researchers in further studying concrete based on agricultural waste materials.

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Section: Agricultural Wastes As Cement or Aggregate Replacement Inmentioning

confidence: 99%

Section: Agricultural Wastes As Cement or Aggregate Replacement Inmentioning

confidence: 99%

Agricultural Solid Waste as Source of Supplementary Cementitious Materials in Developing Countries

et al. 2019

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“…Durante el proceso de quema del bagazo se generan alrededor del 0,7 % de cenizas residuales de la masa de caña de azúcar molida, que generalmente son descartadas de manera inadecuada al no ofrecer ninguna fuente de nutrición para las plantaciones y generar un impacto negativo al medio ambiente por ser un residuo de difícil degradación (Sampaio et al, 2014). Este residuo presenta una gran cantidad de silicatos y aluminatos (además de una alta actividad puzolánica, como mostraron algunas investigaciones actuales (Silva, 2016; Castro, 2016; Altoé & Martins, 2015 y Sales & Lima, 2010).…”

Section: Materiales Puzolánicosy Ceniza Del Bagazo De Caña De Azúcarunclassified

Evaluación de la resistencia del hormigón producido con la ceniza de la quema del bagazo de la caña de azúcar en sustitución parcial del cemento Portland

Adegilson,

Aquino Rocha,

Luiza da Silva

et al. 2018

Jour. Bol. Cien.

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Brasil es el mayor productor de caña de azúcar, plantación que sirve de materia prima para la obtención de azúcar, alcohol y otros, además de otros subproductos como el bagazo (que puede ser quemado a fin de producir energía, proceso que genera residuos y cenizas). Este residuo posee en su composición básicamente silicatos y aluminatos que garantizan -cuando es calcinado a temperatura correcta- alta actividad puzolánica, presentando -de esta forma- una viabilidad técnica para su utilización como adición mineral en la fabricación de hormigón. En este sentido, el objetivo de este trabajo es analizar las características físicas de la ceniza de caña de azúcar y evaluar el desempeño de la resistencia a la compresión axial de cuerpos de pruebas de hormigón, producidos con sustitución parcial del cemento Portland por la ceniza del bagazo de caña de caña de azúcar en proporciones de 5 %, 10 %, 15 % y 20 %. Los resultados indicaron que en general- la ceniza del bagazo de caña de azúcares viable en proporciones de 15 % de sustitución, lo' que sugiere su utilización en la construcción civil con el fin de disminuir significativamente las emisiones de C02 causadas durante la fabricación de cemento, además de obtener una forma sustentable de reaprovechar el residuo que actualmente no tiene un destino adecuado.

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“…One way to reduce the environmental impacts arising from the use of cement is to partially replace it with alternative cementitious materials, such as the ash produced by the sugar and alcohol industry, which can produce approximately 25 kg of residue for each ton of bagasse burned (Paul et al, 2019). This material, not only has sustainable characteristics, but also is rich in silica (SO2), with mass values above 60% and, depending on its pozzolanic activity, can improve the strength and durability of concrete (Sampaio et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

The use of sugarcane bagasse ashes (sba) in the confection of concrete’s traces and precast, replacing and adding to cement

Freitas,

Silva,

Freitas-Ferreira

et al. 2023

PRW

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Concrete is one of the most used construction materials in the world, with cement being one of its main ingredients. The incorporation of Sugarcane Bagasse Ash (SBC) in the production of concrete can present solutions for the use of this agro-industrial by-product and minimize environmental impacts arising from the removal of limestone in the production of cement, in addition to contributing to the reduction of emission of carbon dioxide and preserve natural deposits for cement production. This study aimed to use sugarcane bagasse ash in the addition and partial replacement of cement in the production of concrete. The specimens (TBs) were manufactured following the NBRs 7223 and 5738, in which a ratio was adopted: (1:1.98:3.23:0.61) as primary proposal (T1), and the replacement (T2) and addition (T3) of 5% of Portland cement by mass was performed. The ruptures of the specimens were performed by the compressive strength test of concrete cylindrical specimens at 7, 14, 21 and 28 days of age, after rectification. The results obtained show that it is feasible to use SBA, since the water/cement ratio and the percentage of mass to be replaced or added are appropriate, because both in the addition and the replacement of 5% cement by SBA obtained a gain in strength of concrete.

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Análise da influência das cinzas do bagaço de cana-de-açúcar no comportamento mecânico de concretos

Cited by 8 publications

References 2 publications

Agricultural Solid Waste as Source of Supplementary Cementitious Materials in Developing Countries

Agricultural Solid Waste as Source of Supplementary Cementitious Materials in Developing Countries

Evaluación de la resistencia del hormigón producido con la ceniza de la quema del bagazo de la caña de azúcar en sustitución parcial del cemento Portland

The use of sugarcane bagasse ashes (sba) in the confection of concrete’s traces and precast, replacing and adding to cement

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