Incorporation of biochar in cementitious materials: A roadmap of biochar selection

Maljaee, Hamid; Madadi, Rozita; Paiva, Helena; Tarelho, L.A.C.; Ferreira, Victor

doi:10.1016/j.conbuildmat.2021.122757

Cited by 124 publications

(64 citation statements)

References 133 publications

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“…A água absorvida na superfície do biocarvão e mantida nos espaços interpartículas, pode estar disponível como umidade livre durante o endurecimento inicial da argamassa, enquanto a água dentro dos poros do biocarvão seria gradualmente liberada dependendo da distribuição do tamanho dos poros (Gupta & Kua, 2020). A capacidade de retenção de água do biocarvão promove a cura interna da argamassa e a hidratação precoce (Maljaee et al, 2021).…”

Section: Biocarvão Em Compostos Cimentíciosunclassified

Uso de concreto permeável com aditivos no tratamento de águas residuárias, com enfoque no biocarvão: uma revisão

Clementino

Santiago

Sousa

et al. 2021

RSD

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Nos grandes centros urbanos, a constante impermeabilização das vias intensifica alagamentos e enchentes, gerando inúmeros transtornos à população. O uso do concreto permeável como mecanismo de drenagem de águas pluviais e residuárias tem sido uma solução parcial para esse tipo de problema de drenagem, inclusive com a adição em sua composição de materiais com propriedades adsorventes que visem a melhoria de parâmetros físico-químicos e biológicos da água. Portanto, este artigo tem como objetivo geral trazer importantes resultados de diversos estudos utilizando concreto permeável com adições minerais e mostrar os benefícios nas propriedades mecânicas e adsorventes desse tipo de concreto, com ênfase na utilização do biocarvão. Para isso, optou-se como metodologia, fazer uma breve revisão da literatura, no qual foram analisadas pesquisas concluídas disponíveis em base de dados online como Scopus, Science Direct a partir do ano de 2015 utilizando como descritores em inglês: “Concrete” AND “Biochar”, “Concrete porous” AND “Biochar”, “Pervious concrete” AND “Biochar”, “Treatment of water” AND “Concrete porous”, “Cementitious materials” AND “Biochar”. Foram selecionadas 51 referências sendo assim especificados: 48 artigos científicos, 1 norma e 2 capítulos de livros. Constatou-se que a adição de minerais adsorventes e biocarvão no concreto podem promover melhoria de parâmetros de qualidade da água como diminuição de turbidez, nitrogênio totais (NT), Fósforo Totais (PT), DQO, DBO, entre outros, e promoverem, em alguns casos, ganho de resistência mecânica dos concretos produzidos.

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Section: Biocarvão Em Compostos Cimentíciosunclassified

Uso de concreto permeável com aditivos no tratamento de águas residuárias, com enfoque no biocarvão: uma revisão

Clementino

Santiago

Sousa

et al. 2021

RSD

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“…All of these factors must be optimised in order to achieve better mechanical and thermal properties. Recently, Malijaee et al [39] in their review reported biochar's effectiveness in the cement material in terms of workability, hydration, mechanical, and transfer properties of the cement material. In another review paper, Akinyemi and Adesina [40] emphasised the importance of biochar addition in cement material, particularly for carbon sequestration.…”

Section: Introductionmentioning

confidence: 99%

Biochar-Added Cementitious Materials—A Review on Mechanical, Thermal, and Environmental Properties

Mensah

Vigneshwaran

Narayanan³

et al. 2021

Sustainability

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The enhanced carbon footprint of the construction sector has created the need for CO2 emission control and mitigation. CO2 emissions in the construction sector are influenced by a variety of factors, including raw material preparation, cement production, and, most notably, the construction process. Thus, using biobased constituents in cement could reduce CO2 emissions. However, biobased constituents can degrade and have a negative impact on cement performance. Recently, carbonised biomass known as biochar has been found to be an effective partial replacement for cement. Various studies have reported improved mechanical strength and thermal properties with the inclusion of biochar in concrete. To comprehend the properties of biochar-added cementitious materials, the properties of biochar and their effect on concrete need to be examined. This review provides a critical examination of the mechanical and thermal properties of biochar and biochar-added cementitious materials. The study also covers biochar’s life cycle assessment and economic benefits. Overall, the purpose of this review article is to provide a means for researchers in the relevant field to gain a deeper understanding of the innate properties of biochar imparted into biochar-added cementitious materials for property enhancement and reduction of CO2 emissions.

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“…Biochar comes from the pyrolysis process, in which the volatile matter, constituted mainly by hemicellulose, cellulose, and polysaccharides, is mostly eliminated, and its degradation depends on the temperatures of the process [ 3 , 4 , 5 , 6 , 7 , 8 ]; making the biochar mainly composed of lignin. Biochar has been found to be the only one subproduct among the thermal technologies that can provide the potential to address some problems that happen in the cement industry, such as the reduction of CO 2 emissions in the world [ 9 ]. This is considered adequate because it does not present impurities in the ash content, one of the main problems that has been found with the rice husk in the substitution of mortars [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Biochar has been widely used to develop construction materials such as geopolymers [ 9 , 12 , 13 ], natural inorganic clay compounds [ 14 ], bituminous material [ 15 , 16 ], red clay binders [ 17 ], among others. Some authors argue that when biochar is added to building materials, carbon can be stored and locked in the structure for decades, helping to keep global carbon cycles in balance, due to the sequestering nature of biochar [ 9 ]. Currently, by-products of biological origin are used that have not shown as many advantages as the use of biochar from the pyrolysis process, making biochar a good replacement for cement in the production process in industry.…”

Section: Introductionmentioning

confidence: 99%

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Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes

Morales

Herrera

López

et al. 2021

Heliyon

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Incorporation of biochar in cementitious materials: A roadmap of biochar selection

Cited by 124 publications

References 133 publications

Uso de concreto permeável com aditivos no tratamento de águas residuárias, com enfoque no biocarvão: uma revisão

Uso de concreto permeável com aditivos no tratamento de águas residuárias, com enfoque no biocarvão: uma revisão

Biochar-Added Cementitious Materials—A Review on Mechanical, Thermal, and Environmental Properties

Use of biochar from rice husk pyrolysis: assessment of reactivity in lime pastes

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