Utilization of Sandy Soil as the Primary Raw Material in Production of Unfired Bricks

Tao, Guilan; Pan, Yuepeng; Qiao, Zhaoyang; Jiang, Chaohua

doi:10.1155/2018/7320298

Cited by 11 publications

(8 citation statements)

References 36 publications

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“…Em geral, para baixos teores de incorporação, Galvão et al (2011) observaram que esses incrementos não proporcionam efeitos substanciais na resistência à compressão do concreto. A literatura afirma que a presença de PET pode colaborar para a perda de resistência, uma vez que ocorre a ruptura das ligações presentes na matriz cimentícia, além de dificultar o empacotamento do compósito (HITA et al, 2018;TAO et al, 2018).…”

Section: Resultados E Discussõesunclassified

“…Para o período de 35 a 42 dias, percebeu-se uma tendência de aproximação entre os valores ou de redução da resistência mecânica. Uma justificativa para isso são as microfissuras geradas nos processos físicos, intensificados aqui pelos ciclos de saturação e secagem (TAO et al, 2018). O aumento dessas microfissuras permite o desenvolvimento de espaços porosos que possibilitam pontos de fraqueza do material, reduzindo sua capacidade mecânica (TAO et al, 2018;MOMENI et al, 2017).…”

Section: Resultados E Discussõesunclassified

“…Uma justificativa para isso são as microfissuras geradas nos processos físicos, intensificados aqui pelos ciclos de saturação e secagem (TAO et al, 2018). O aumento dessas microfissuras permite o desenvolvimento de espaços porosos que possibilitam pontos de fraqueza do material, reduzindo sua capacidade mecânica (TAO et al, 2018;MOMENI et al, 2017). Outra justificativa para a redução da resistência mecânica foi descrita por Siddique et al (2019), que consideraram que a água fria interfere no processo de hidratação do cimento, causando choques térmicos na matriz cimentícia e enfraquecendo-a.…”

Section: Resultados E Discussõesunclassified

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Avaliação do desempenho de compósito alternativo destinado aos sistemas urbanos e moradias de baixo custo

2021

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Resumo Este artigo traz um estudo sobre um compósito de cimento, resíduo industrial de lodo de papel e flakes de PET, visando sua potencialização para possível destinação em sistemas urbanos e moradias de baixo custo. Justifica-se pelos problemas socioambientais relacionados aos consumos de matérias-primas naturais e pela deposição indevida de produtos e resíduos no ambiente. Para isso, foram testadas as proporções 1:3, 1:4 e 1:5 de cimento e resíduos, com substituições do volume de lodo de papel por PET nas taxas de 10%, 20% e 30%. Foram avaliadas propriedades físico-mecânicas - como resistência à compressão, absorção de água e porosidade aos 28 e 90 dias em amostras não degradadas - e parâmetros de desgaste ao atrito. As propriedades físico-mecânicas foram aferidas também aos 35 e 42 dias em amostras que passaram por ciclos de degradação acelerada. De forma geral, notou-se aumento da resistência mecânica com a cura e diminuição com a inserção de lodo. O material apresentou baixa degradação nos ensaios de desgaste. Quanto à absorção de água e à porosidade, os valores aumentaram conforme o acréscimo de resíduo e com a cura, facilmente contornável com a redução de lodo e adoção de soluções impermeabilizantes.

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Section: Resultados E Discussõesunclassified

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Avaliação do desempenho de compósito alternativo destinado aos sistemas urbanos e moradias de baixo custo

2021

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“…According to the researcher, the cement-stabilized earth specimens may be evaluated based on a wet/oven dry ratio of 33% [45]. "Clay, cement, lime, and Ground Granulated Blast Furnace (GGBS) combination bricks exposed to 100 cycles of freezing and thawing over 24 hours by Oti et al produced good results, with a maximum weight loss of 1.9 percent after the hundredth cycle" [46].…”

Section: Durabilitymentioning

confidence: 99%

Sustainable Eco-Friendly Building Material – A Review Towards Compressed Stabilized Earth Blocks and Fire Burnt Clay Bricks

Asha Sapna,

Anbalagan

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The aim of the current research article is to provide a comprehensive review and discuss and conclude on two types of earth blocks i.e., stabilized compressed earth blocks and fire-burnt clay bricks. A direct correlation exists between the number of greenhouse gases emitted and the amount of coal used to manufacture the fire-burnt clay bricks. To address this issue, new construction materials have been developed. Compressed Stabilized Earth Blocks (CSEBs) is an enhanced earth-based masonry material as it is not burnt. CSEBs are manufactured by compressing the soil under pressure. Coal and other burning fuels are not used at any point in the manufacturing process of CSEBs. Environment-friendly and energy-efficient construction materials that encourage the sustainable development have grown significantly in the recent years, as the public have become highly conscious. Since the building materials are produced in local communities, the local resources are efficiently used, transportation costs get reduced and high-quality housing is made available to a large spectrum of people. Less time-consuming construction techniques and low labour demand results in increased strength, insulation and thermal characteristics, lower carbon emissions and embodied energy during the life cycle of the materials and exceptionally low levels of trash that can be easily disposed of. When locally-produced materials are used for building purposes, it creates jobs and is more eco-friendly, during the times of crisis. CSEB and conventional bricks require different amounts of energy and release significantly different amounts of carbon dioxide throughout the production process. A review of the construction process that utilizes clay bricks and CSEBs has been conducted using the data and reports from numerous research papers and organizations. According to this review, the Compressed Stabilized Earth Blocks outperform the fire-burnt clay bricks in terms of advantages. When it comes to creating new environment-friendly construction materials, the CSEBs remain a viable option.

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“…Among the construction techniques and materials presenting low environmental impact, the soilcement brick deserves special attention due to its ecological character, as it does not require the burning process, unlike traditional construction systems, avoiding harmful gases being released to the environment, as well as using soil as the main raw material, which is abundantly found in nature having great potential for waste incorporation in its matrix to gain strength and improve its properties (Khedari et al 2005;Turgut and Gumuscu 2013;Tao et al 2018;Barros et al 2020a).…”

Section: Introductionmentioning

confidence: 99%

Lignocellulosic materials as soil–cement brick reinforcement

Sabino

Coelho

Andrade

et al. 2021

Environ Sci Pollut Res

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The need for environmental preservation requires civil engineering to reach new concepts and technical solutions aiming at the sustainability of its activities and products. In this context, this study aimed to evaluate the effect of using different types and percentages of vegetable particles on the physical, mechanical and thermal properties of soil-cement bricks. Bamboo, rice husk and coffee husk particles at 1.5 and 3% percentages and a control treatment not using the particle were evaluated. The chemical properties, shrinkage, compaction, consistency limits and grain size were characterized for the soil; and the anatomical, chemical and physical properties for the lignocellulosic particles. The bricks were produced using an automatic press and characterized after the curing process for density, water absorption, porosity, loss of mass by immersion, compressive strength, durability and thermal conductivity. The increase in the lignocellulosic waste percentage caused a mechanical strength decrease and bricks` porosity and water absorption increase. However, it caused a decrease in density and an enhancement in loss of mass and thermal insulation properties. The bricks produced with rice husk obtained the best results in terms of mechanical and thermal properties, and were still among the best treatments for physical properties, standing out among the lignocellulosic waste as an alternative raw material source for soil-cement bricks production.

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Utilization of Sandy Soil as the Primary Raw Material in Production of Unfired Bricks

Cited by 11 publications

References 36 publications

Avaliação do desempenho de compósito alternativo destinado aos sistemas urbanos e moradias de baixo custo

Avaliação do desempenho de compósito alternativo destinado aos sistemas urbanos e moradias de baixo custo

Sustainable Eco-Friendly Building Material – A Review Towards Compressed Stabilized Earth Blocks and Fire Burnt Clay Bricks

Lignocellulosic materials as soil–cement brick reinforcement

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