Circular economy in cementitious ceramics: Replacement of hydrated lime with a stoichiometric balanced combination of clay and marble waste

Marvila, Markssuel Teixeira; Azevedo, Afonso Rangel Garcez de; Alexandre, Jonas; Colorado, Henry A.; Antunes, Maria Lúcia Pereira; Vieira, Carlos Maurício Fontes

doi:10.1111/ijac.13634

Cited by 51 publications

(26 citation statements)

References 56 publications

(110 reference statements)

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“…From a chemical point of view, there is a wide range of mineral additions used. According to the bibliography [ 97 , 98 , 99 ], there are reports of the use of materials rich in calcium, such as furnace slag, limestone filer, and class F ash as well as materials rich in silica or aluminosilicates, such as fly ash, silica fume, and metakaolin, which make up the class of pozzolans.…”

Section: Classic Components Used For Hpc and Uhpc Productionmentioning

confidence: 99%

Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials

Marvila¹,

Azevedo²,

Matos

et al. 2021

Materials

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106

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This review article proposes the identification and basic concepts of materials that might be used for the production of high-performance concrete (HPC) and ultra-high-performance concrete (UHPC). Although other reviews have addressed this topic, the present work differs by presenting relevant aspects on possible materials applied in the production of HPC and UHPC. The main innovation of this review article is to identify the perspectives for new materials that can be considered in the production of novel special concretes. After consulting different bibliographic databases, some information related to ordinary Portland cement (OPC), mineral additions, aggregates, and chemical additives used for the production of HPC and UHPC were highlighted. Relevant information on the application of synthetic and natural fibers is also highlighted in association with a cement matrix of HPC and UHPC, forming composites with properties superior to conventional concrete used in civil construction. The article also presents some relevant characteristics for the application of HPC and UHPC produced with alkali-activated cement, an alternative binder to OPC produced through the reaction between two essential components: precursors and activators. Some information about the main types of precursors, subdivided into materials rich in aluminosilicates and rich in calcium, were also highlighted. Finally, suggestions for future work related to the application of HPC and UHPC are highlighted, guiding future research on this topic.

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Section: Classic Components Used For Hpc and Uhpc Productionmentioning

confidence: 99%

Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials

Marvila¹,

Azevedo²,

Matos

et al. 2021

Materials

Self Cite

106

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“…[42][43][44][45]. The waste of ornamental stones, such as marble, also has shown potential in producing mortars, concrete and bricks [46][47][48].…”

Section: The Different Stages Of the Brazilian Mining And Cement Indumentioning

confidence: 99%

Circular Economy and Solid Waste Management: Challenges and Opportunities in Brazil

et al. 2021

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Brazil has a vast territory and regional diversity, which turn the promotion of circular economy (or its improvement) into a complex challenge. This paper aims to analyse these challenges and solid waste management opportunities as a driving force for the circular economy in Brazil. Therefore, two significant challenges are discussed in this paper: increasing industrial waste recovery and improving the selective collection of municipal solid waste. Industries are concentrated in the country's South and Southeast regions, where 56% of the population live and where the best logistic infrastructure is also located. These features can help the circular economy related to industrial and municipal solid waste in those regions but bring challenges concerning the waste generated in the other part, such as the Brazilian Amazon. According to legislation, the productive sector is responsible for its products before and after use (waste prevention actions). One of the national laws establishes reverse logistic systems for several items, such as agrochemical packaging and electrical and electronic waste, but some sectors have better results than others in terms of circular economy. The cement industry in Brazil is highlighted as a case of relative success. On the other hand, the mining industry in Brazil has challenges related to the large amount of waste generated with high environmental and social risks, which caused several large accidents in the last years.

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“…The sale value of each ceramic tile was considered to be 0.28 dollars. All figures were extracted from information from the region under study 22,23 . Based on this, it was possible to obtain total sales: $ 26,800.00 in the launch phase, $ 70560.00 in the growth phase, $ 211680.00 in the maturity phase and $ 63504.00 in the decline phase, totaling $ 372624.00 of total sales.…”

Section: Resultsmentioning

confidence: 99%

Economy analysis of the implementation of extruded tiles fabrication in a ceramic industry containing ornamental rock waste

Azevedo¹,

Marvila²,

Delaqua³

et al. 2021

Int J Applied Ceramic Tech

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As a result of the economic crisis faced in Brazil, industries in the red ceramic sector have economic problems. The objective of this work was to evaluate, technologically and economically, through analysis of economy, the implementation of the production of ceramic tiles, a material with higher added value than bricks and ceramic blocks, in a ceramic industry located in the state of Rio de Janeiro, Brazil. The ceramic tiles were produced containing the incorporation of ornamental rock waste (ORW). The state has a region that has a red ceramic pole, but produces only products with lower added value. For this, specimens were produced with four different ceramic masses burned at temperatures in the range of 800 to 1050°C. Three masses were produced with different clays from the region (ceramic mass 1, 2 and 3) and a ceramic mass 4 was evaluated containing the clay that presented the best results and with the inclusion of sand and ORW, aiming at the analysis of economy. It was found that the masses containing only clays showed satisfactory parameters of resistance, but showed deficiencies in water absorption. The fourth mass, however, presented acceptable values in all the evaluated properties and was chosen to carry out a full‐scale industrial test, which enabled the development of economic analysis and an economic analysis using the theory of real options. The results obtained in this last stage were also positive, providing an internal rate of return of 16.82%, above the minimum practiced rate of 15%, proving the efficiency of the economy applied to the manufacture of extruded tiles in the industries of the study region.

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Circular economy in cementitious ceramics: Replacement of hydrated lime with a stoichiometric balanced combination of clay and marble waste

Cited by 51 publications

References 56 publications

Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials

Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials

Circular Economy and Solid Waste Management: Challenges and Opportunities in Brazil

Economy analysis of the implementation of extruded tiles fabrication in a ceramic industry containing ornamental rock waste

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