Towards sustainable bricks production: An overview

Murmu, Anant Lal; Patel, Anjan

doi:10.1016/j.conbuildmat.2018.01.038

Cited by 235 publications

(115 citation statements)

References 85 publications

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“…The firing process is energy consuming and therefore not environmental-friendly, resulting in relative increase of the cost and embodied energy of the products [6][7][8]. Today, the awareness of the global warming and necessity for energy saving on the one hand and improved indoor comfort provided by unfired clay material on the other hand give this material the potential for construction of sustainable buildings [7,[9][10][11][12]. For centuries, unfired clay materials have been used in building construction, in various forms such as adobe (sun dried brick), rammed earth and recently compressed earth block (CEBs), and proved promising to provide affordable and comfortable housing [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Clay material used for production of CEBs should have a certain fraction of fine particles and plasticity for binding cohesion of coarser particles in order to ensure physical and mechanical stability of the matrix, i.e. 10˗50% of clay particles and plasticity index of 10-30, depending on the presence, the type and the content of stabilizer [7,9,12,16]. Table 1 presents the texture, plasticity, and mineralogy of earthen materials recommended for the production of stabilized CEBs.…”

Section: Introductionmentioning

confidence: 99%

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Physico-chemical and mineralogical characterization of clay materials suitable for production of stabilized compressed earth blocks

Nshimiyimana

Fagel

Messan

et al. 2020

Construction and Building Materials

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The main objective of this study is to characterize the physico-chemical and mineral properties of clay materials from Burkina Faso to produce stabilized compressed earth blocks (CEBs). The reactivity of the clay materials was tested based on the electrical conductivity of solutions and the compressive strength of CEBs stabilized with 0-20 wt% CCR (calcium carbide residue) and cured for 45 days at 40±2 °C. Pabre and Kossodo respectively contain the highest fractions of clay (20-30%) and gravel (40%). Saaba and Pabre contain the highest content of kaolinite (60˗70%) and quartz (45-60%) and recorded the highest and lowest reactivity, respectively. The compressive strength of CEBs stabilized with 20% CCR improved tenfold (0.8 to 8.3 MPa) for Saaba and only 2.6 (2 to 7.1 MPa) for Pabre. The clay materials in the present study are suitable to produce CCRstabilized CEBs for load-bearing construction.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physico-chemical and mineralogical characterization of clay materials suitable for production of stabilized compressed earth blocks

Nshimiyimana

Fagel

Messan

et al. 2020

Construction and Building Materials

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“…A sociedade vive uma tendência mundial de reutilização de materiais, minimizando impactos ambientais e tornando processos produtivos mais sustentáveis. Os tijolos ecológicos, principalmente aqueles fabricados sem queima (solo-cimento), são alvo de estudos em todo o mundo, com reaproveitamento de variados materiais [23][24][25].…”

Section: Discussionunclassified

Utilização De Rejeito Magnético Para Moldagem De Tijolos

Mendes¹,

Ribeiro²,

Oliveira³

et al. 2019

TMM

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a ResumoOs resíduos sólidos são uma realidade da sociedade moderna, contribuindo para consequências no planejamento e gestão de indústrias e centros urbanos. Assim, a reutilização destes resíduos para produção de diversos materiais surge como uma alternativa. A mineração é um setor da economia que descarta grandes volumes de material em barragens de rejeito e pilhas de estéril, tornando-se importante a busca por reutilização destes materiais, visando a minimização de impactos ambientais. Este estudo busca analisar a viabilidade técnica de substituição do solo por rejeito magnético gerado no processamento de rocha fosfática na produção de tijolos solo-cimento. Ensaios de resistência mecânica à compressão, absorção e aferição da densidade foram realizados. Os resultados indicam tijolos com resistência mecânica e densidade superior e absorção inferior ao tijolo moldado para controle. Portanto, este estudo preliminar permite concluir que é possível a substituição parcial do solo por rejeito magnético na produção de tijolos solo-cimento, obtendo características semelhantes ou melhores. Palavras-chave: Rejeito magnético; Resistência mecânica; Tijolo solo-cimento. AbstractSolid waste is a reality of modern society, contributing to consequences in the planning and management of industries and urban centers. Thus, the reuse of these wastes for the production of various materials appears as an alternative. Mining is a sector of the economy that discards large volumes of material in tailings dams and sterile piles, making it important to search reuse of these materials in order to minimize environmental impacts. This study search to analyze the technical feasibility of soil substitution by magnetic tailings generated in phosphate rock processing in the production of soil-cement bricks. Tests of mechanical resistance to compression, absorption and density measurement were performed. The results indicate bricks with mechanical resistance and superior density and inferior absorption to the molded brick for control. Therefore, this preliminary study allows to conclude that it is possible the partial replacement of the soil by magnetic waste in the production of soil-cement bricks, obtaining similar or better characteristics.

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“…The stringent requirements on thermal insulating properties of building envelopes have resulted in utilization of modern building materials with high thermal resistance such as modern bricks [3,4], autoclaved aerated concretes [5], various types of excellent thermal insulations, or the construction and operation systems of houses have been improved to reach low energy or even passive standards [6,7]. At the same time, old buildings have been retrofitted by means of the addition of extra insulation layers.…”

Section: Introductionmentioning

confidence: 99%

Computational Prediction of Susceptibility to Biofilms Growth: Two-Dimensional Analysis of Critical Construction Details

Kočí

Maděra

et al. 2020

Energies

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Retrofitting of historical and traditional buildings is an effective thermal protection measure. The presence of thermal insulation in the composition of building envelopes might, however, bring some shortages due to a decrease of exterior surface temperatures or possible water vapor condensation. These shortages can improve living conditions for various microorganisms on the exterior surfaces, especially in the case of interior thermal insulation systems that are typical with thermal bridges and thus supply the surface with heat to a greater extent. This paper, therefore, aims at the investigation of hygrothermal conditions in selected critical construction details and evaluates the results from the point of view of potential biofilms growth. Two-dimensional modeling of coupled heat and moisture is applied and the hygrothermal patterns are evaluated based on an adjusted isopleth growth model. The results showed that the duration of favorable conditions for biofilms growth is relatively low, accounting for less than 180 h in the worst-case scenario. It means the exterior surfaces of historical buildings provided with interior thermal insulation systems are not threatened by biofilms growth. Anyway, other negative aspects have been revealed that should be treated individually. Possible wood decay or increased hygrothermal straining are the typical examples in that respect.

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Towards sustainable bricks production: An overview

Cited by 235 publications

References 85 publications

Physico-chemical and mineralogical characterization of clay materials suitable for production of stabilized compressed earth blocks

Physico-chemical and mineralogical characterization of clay materials suitable for production of stabilized compressed earth blocks

Utilização De Rejeito Magnético Para Moldagem De Tijolos

Computational Prediction of Susceptibility to Biofilms Growth: Two-Dimensional Analysis of Critical Construction Details

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