Aproveitamento das cinzas de caroço de açaí na produção de concreto sustentável analisando sua durabilidade

Oliveira, Thainá Maria da Costa; Nascimento, Karoline Figueiredo Sarubby do; Ribeiro, Jayron Alves; Silva, Luiz Felipe Albuquerque da; Jacinto, Moisés de Araujo Santos; Santos, Rafael Gomes dos; Ribeiro, Diana Darley Gomes; Rocha, Sandy Nobre Vieira da

doi:10.34117/bjdv6n5-510

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Even so, the material acted as a filler in the cement matrix and showed good mechanical performance when applied to the concrete. Do Nascimento et al [32] also applied ASA in concrete, and they observed that the addition of ash brought benefits to the durability of the compound, making it less inclined to carbonation due to the filler effect of ASA. Marins et al [4] studied the incorporation of ASA in structural ceramics and concluded that up to 15% of ash improved the physical and mechanical properties of the material.…”

Section: Introductionmentioning

confidence: 99%

Circular Bioeconomy in the Amazon Rainforest: Evaluation of Açaí Seed Ash as a Regional Solution for Partial Cement Replacement

et al. 2022

View full text Add to dashboard Cite

Açaí seed ash (ASA) is a waste product from processing the açaí fruit and burning the seeds for cogeneration purposes. The present study evaluated the use of ASA from the Brazilian Amazon as partial Portland cement replacement in self-leveling mortars (SLM) for social-interest buildings. The fresh and hardened state properties of mortars were accessed with 5% and 10% ASA content, and a life cycle assessment was performed to evaluate the greenhouse gas (GHG) emissions. The maximum transport distance to enable ASA as a building material was determined by a sensitivity analysis, and specific carbon-efficiency indicators for SLM were proposed and validated. The results showed that using up to 10% ASA as cement replacement was technically and environmentally feasible since the mechanical performance was maintained and GHG emissions decreased up to 8%. The sensitivity analysis revealed that transport efficiency is crucial for ASA applications far from its production area; therefore, it should be evaluated as a regional building material. The work brings an important contribution to regional sustainable development by assessing the characteristics of a residual material and proposing the reuse of waste, reducing GHG emissions from the cement industry, and stimulating the circular bioeconomy in the Brazilian Amazon region.

show abstract

Section: Introductionmentioning

confidence: 99%

Circular Bioeconomy in the Amazon Rainforest: Evaluation of Açaí Seed Ash as a Regional Solution for Partial Cement Replacement

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Nos últimos anos estudos relataram que materiais de origem natural podem ser usados com bom potencial em compósitos cerâmicas a base de cimento (Onuaguluchi et al, 2016;Miller, 2018;Lima et al, 2020;Marques et al, 2019;Oliveira et al, 2020 ).…”

Section: Introductionunclassified

Aplicação Em Cerâmica À Base De Cimento De Biopolímero Obtido De Resíduos De Leite / Application in Cement-Based Ceramics of Biopolymer Obtained From Milk Waste

Sousa

Silva

Souza

et al. 2021

BJD

View full text Add to dashboard Cite

RESUMOA redução de materiais na etapa de produção segue os novos preceitos, porém a pressão sobre os recursos continua crescendo seguindo anexo ao alto consumo. Inovações voltadas para a sustentabilidade são criadas interagindo os sistemas econômicos e ambiental. Pesquisas de novos materiais crescem produzindo diversos produtos e compostos, como os biopolímeros em substituição aos aditivos sintéticos, indispensáveis para incrementar o conceito de inovação orientada para eco-inovação. Nesse estudo objetivou-se avaliar o biopolímero extraído do leite bovino em relação a cerâmicas de base cimentícia do tipo CPV-ARI e CPII-E, relacionando a ação do polímero com cada grupo cimentício através da resistência, absorção por imersão e capilaridade. O estudo apontou um aumento na resistência a compreensão em media de 16% CPII-E e 6% nas matrizes CPV-ARI, ambos os traços testados, não indicou interferência do traço e agregado em relação ao biopolímero, e a porosidade das matrizes naõ sofreu alteração significativa. Por fim, consideramos que o biopolímero obteve bom desempenho em

show abstract

An Update on the Waste Management of the Amazonian Açaí Berry for the Civil Engineering Sector

Polidori,

Murer,

Beaumont

et al. 2024

Sustainability

View full text Add to dashboard Cite

The rising demand for açaí berries in Amazonian Brazil and French Guiana generates a significant amount of waste, namely the fruit’s stone, which accounts for 80% of the dry fruit’s mass. Recently, various studies have explored the potential valorization of açaí waste in the civil engineering sector, including the functionalization of the fibers surrounding the stone and the multiphysics testing of composite materials based on açaí fibers and/or stones, treated or untreated. This literature review aims to provide an overview of the technology readiness levels (TRLs) of the existing techniques capable of reducing the environmental impact of both the cultivation and management of naturally occurring açaí. While the research to date is promising, it remains at the prototype stage, and the mass ratio of waste in composites, regardless of their type, limits addressing the underlying ecological problem of açaí waste processing. Further experimental investigations are required to improve the functionalization processes, enabling the use of higher proportions of fibers and/or stones in cementitious composites and their large-scale production.

show abstract

Aproveitamento das cinzas de caroço de açaí na produção de concreto sustentável analisando sua durabilidade

Abstract: Aproveitamento das cinzas de caroço de açaí na produção de concreto sustentável analisando sua durabilidade Use of açaí stone ash in the production of sustainable concrete analyzing its durability

Cited by 3 publications

References 0 publications

Circular Bioeconomy in the Amazon Rainforest: Evaluation of Açaí Seed Ash as a Regional Solution for Partial Cement Replacement

Circular Bioeconomy in the Amazon Rainforest: Evaluation of Açaí Seed Ash as a Regional Solution for Partial Cement Replacement

Aplicação Em Cerâmica À Base De Cimento De Biopolímero Obtido De Resíduos De Leite / Application in Cement-Based Ceramics of Biopolymer Obtained From Milk Waste

An Update on the Waste Management of the Amazonian Açaí Berry for the Civil Engineering Sector

Contact Info

Product

Resources

About