Ceramic Waste
Mostrando 1-12 de 79 artigos, teses e dissertações.
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1. A review on the production of porous ceramics using organic and inorganic industrial waste
Abstract The use of industrial waste in compositions of ceramic masses has attracted great interest from the scientific community, as they can be considered abundant and diversified alternative sources of raw materials. At the same time, there is a growing interest in the development of porous ceramics due to their wide possibilities for use in various field
Cerâmica. Publicado em: 2022
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2. Characteristics and utilization prospects of red ceramic waste in lightweight aggregates: a systematic review
Abstract Red ceramic waste (RCW) is one of the main by-products generated by the production of ceramic materials. Its application in lightweight aggregates (LWAs) has not yet been tested. Thus, this review intends to evaluate the perspectives of using RCW in the manufacture of LWAs. The search was carried out in the ScienceDirect database. 47 articles were s
Cerâmica. Publicado em: 2022
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3. Evaluation of the use of silica-alumina refractory waste as a supplementary cementitious material
Abstract The use of supplementary cementitious materials (SMCs) is one of the three essential factors for the sustainability of the cement industry. To reduce CO2 emissions, several studies have introduced new methods for the utilization of industrial wastes such as the addition into cementitious materials. The objectives of this study were to chemically and
Cerâmica. Publicado em: 2021-06
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4. Effects of sintering temperature on microstructure and properties of sanitaryware ceramic produced with waste material
Abstract This paper aims at exploring the possibility of using a great percentage of recycled materials into vitreous china (VC), thus, contributing to urban waste decrease while lowering the industry’s buying costs, previously optimized, for the sanitaryware production. The recycled blend was introduced in the ceramic slip, Sanitser VC, and used in three
Cerâmica. Publicado em: 2021-03
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5. PROCESSING OF A METAL CONCENTRATE FROM GROUND WASTE PRINTED CIRCUIT BOARDS IN ACIDIC MEDIA USING HYDROGEN PEROXIDE AS OXIDANT
The recovery of precious and base metals of a metal concentrate from ground waste printed circuit boards (PCBs) is described in detail. Samples were treated with NaOHaq. to remove the soldering mask. Experiments were performed in acidic medium (HF, H2SO4, CH3COOH or H3PO4) using H2O2 as oxidant. Base metals were leached in high yields (>99 wt.%) at ~40 ºC a
Quím. Nova. Publicado em: 20/07/2020
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6. Evaluation of the Effect of the Incorporation of Blends of Fuel and Fluxing Wastes in Red Clay Ceramics
The clay samples endure the incorporation of industrial and urban wastes, which do not cause large variations in their properties if added in controlled quantities. Wastes can be classified as fuel, fluxing and property affecting wastes. The fuel wastes usually have a high amount of organic matter, that when heated cause exothermic reactions, releasing heat
Mat. Res.. Publicado em: 09/12/2019
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7. Efeito da adição de resíduo de vidro em massa de cerâmica de alvenaria
RESUMO Este trabalho investigou o efeito da adição de resíduo de vidro para fabricação de cerâmica de alvenaria. Foram conformados corpos-de-prova cilíndricos de 27 mm de diâmetro por 45 mm de altura, a partir da massa padrão de uma indústria de cerâmica vermelha e outras 3 formulações (5, 10 e 20%) com incorporação de vidro, baseado em estudo
Matéria (Rio J.). Publicado em: 25/11/2019
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8. Análises de dosagens de concreto asfáltico do tipo Pré Misturado a Frio (PMF) utilizando Resíduos da Construção e Demolição de obras (RCD)
RESUMO Na construção civil, um problema ambiental recorrente é a geração e disposição de Resíduos de Construção e Demolição (RCD) de obras. A utilização do RCD como agregados na composição de concreto asfáltico, do tipo Pré Misturado a Frio (PMF), torna possível a execução de pavimentos rodoviários de baixo tráfego. Diante desses fatos
Matéria (Rio J.). Publicado em: 25/11/2019
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9. Síntese de pigmentos de níquel utilizando areia descartada de fundição como fonte de sílica
Resumo Sintetizaram-se pigmentos do sistema Zn2-xNixSiO4 variando a proporção molar de zinco e níquel, partindo da estrutura willemita (Zn2SiO4) à olivina (Ni2SiO4), usando areia descartada de fundição (ADF) e sílica comercial como fontes de SiO2. A ADF foi caracterizada por análise química e DRX. A síntese dos pigmentos seguiu rota cerâmica, com
Cerâmica. Publicado em: 14/11/2019
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10. Enrichment of Copper, Lead, and Tin by Mechanical Dry Processing of Obsolete Printed Circuit Board Residues
Waste printed circuit boards (WPCB) residues were mechanically processed to concentrate their metal content aiming to reduce costs of the subsequent recovery of copper, tin, and lead. A fully dry route was proposed to avoid the generation of liquid effluents that would require additional treatment. Firstly, 10.7% of the residue was segregated by magnetic sep
Mat. Res.. Publicado em: 24/10/2019
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11. Evaluation of the pozzolanic activity of red ceramic waste using mechanical and physicochemical methods
Resumo Materiais cimentícios alternativos podem reduzir potencialmente o impacto ambiental da extração de cal e a produção de cimento Portland. Resíduos de cerâmica vermelha podem ser triturados em partículas finas e usados como fíler ou adição pozolânica em argamassas de cimento Portland e cal. Este estudo apresenta a avaliação da atividade po
Cerâmica. Publicado em: 15/08/2019
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12. Recycling ceramic waste as a raw material in sanitary ware production
Resumo Este estudo caracterizou o resíduo de louças sanitárias descartadas que não atendiam aos requisitos de qualidade. Para compreender a composição de tal resíduo, as amostras foram coletadas, processadas e caracterizadas. Este resíduo de cacos de louça cerâmica moídos foi usado para substituir o pó de granito utilizado nas massas cerâmicas e
Cerâmica. Publicado em: 15/08/2019