Clinker
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Evaluation of the use of blast furnace slag as an additive in mortars
Abstract Clinker is the raw material used in the manufacture of cement. However, this material is very harmful to the environment, since it is estimated that for every ton of clinker produced, about 1.0 ton of CO2 is released into the atmosphere. For this reason, alternatives were sought for the use of other materials that are less harmful to the environment
REM - International Engineering Journal. Publicado em: 2022
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2. Energía contenida y emisiones de CO2 en el proceso de fabricación del cemento en Ecuador
Resumen El cemento es un material indispensable para la construcción, por eso, obtener datos locales sobre el impacto ambiental que genera su producción en Ecuador es necesario para los tomadores de decisiones y fabricantes. Esta investigación determina la energía contenida y las emisiones de CO2 en el proceso de fabricación del cemento a partir de la a
Ambient. constr.. Publicado em: 2020-07
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3. CONVERSION OF SPENT FAT OIL INTO LIQUID AND GASEOUS FUELS THROUGH CLINKER CATALYZED PYROLYSIS
Abstract Repeated heating of fat oil may result in the formation of highly toxic aldehyde compounds. The oils having such compounds are considered as health hazards and therefore their repeated use is banned in many countries. Since huge quantities of the used oil need urgent disposal, this work is focused on the disposal of used oil for the resource recover
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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4. Efeito da incorporação de resíduo de TiO2 (MNR) na formação das fases mineralógicas de clínquer Portland
Resumo O reaproveitamento de resíduos industriais para o setor da construção civil tem se mostrado uma alternativa ambiental e economicamente atrativa, principalmente para a indústria do cimento, que por muito tempo tem procurado procedimentos que efetivamente reduzam a alta energia e emissões de CO2 gerados durante a produção de clínquer. Nesse sent
Ambient. constr.. Publicado em: 2019-03
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5. Evaluation of Portland pozzolan blended cements containing diatomaceous earth
Abstract Clinker replacement by supplementary cementitious materials (SCMs) is one strategy to reduce CO2 emissions of cement industry. Diatomaceous earth, a natural pozzolan, has been used as SCM. So, this study aimed to evaluate two Portland pozzolan blended cements with distinct content of diatomaceous earth (16DE and 49DE) and compare then with a high cl
Cerâmica. Publicado em: 2019-01
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6. Cinza de biomassa rica em calcário como material carbonático em sistemas cimentícios de base Portland
Resumo O uso de materiais alternativos, em substituição ao clínquer, tem sido amplamente estudado, a fim de reduzir custos e minimizar os danos ambientais causados pela produção do cimento Portland. Investigou-se a influência do uso da cinza de algaroba (Prosopis juliflora), material rico em carbonato de cálcio, nos mecanismos de hidratação e forma�
Cerâmica. Publicado em: 2019-01
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7. Dynamic Analysis of the Temperature and the Concentration Profiles of an Industrial Rotary Kiln Used in Clinker Production
ABSTRACT Cement is one of the most used building materials in the world. The process of cement production involves numerous and complex reactions that occur under different temperatures. Thus, there is great interest in the optimization of cement manufacturing. Clinker production is one of the main steps of cement production and it occurs inside the kiln. In
An. Acad. Bras. Ciênc.. Publicado em: 2017-12
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8. Fracture Properties of Geopolymer Concrete Based on Metakaolin, Fly Ash and Rice Rusk Ash
Geopolymers are exclusively mineral nature and are considered an alternative to materials based on Portland clinker, whose production accounts for about 5% of anthropogenic CO2 emissions in the world. The geopolymer cement concrete (GCC) may be prepared from natural oxide-aluminosilicates such as metakaolin (MK), or synthetic, such as fly ash (FA) together w
Mat. Res.. Publicado em: 17/11/2017
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9. Synthesis and Mechanical Characterization of Iron Oxide Rich Sulfobelite Cements Prepared Using Bauxite Residue
The bauxite residue (BR) is the solid waste of largest generation by the aluminum industry, with a generation estimated in 10 million ton/year in Brazil. Its high alkalinity demands elevated costs to store it safely. Due to the high content of Al2O3 and Fe2O3 in BR, the present study evaluated its application for the synthesis of iron rich sulfobelite clinke
Mat. Res.. Publicado em: 01/03/2016
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10. Influence of magnesia in the infiltration of magnesia-spinel refractory bricks by different clinkers
Abstract In cement production, which involves the production of cement clinker in rotary kilns, the main refractories used are magnesia-spinel bricks. These bricks may suffer infiltration by the clinker liquid phase, resulting in the corrosion of the spinel and the formation of low refractoriness mineralogical phases, such as the Q phase (C20A13M3S3), which
Rem: Rev. Esc. Minas. Publicado em: 2015-12
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11. Bioactive and Hemocompatible Calcium Sulphoaluminate Cement
Calcium sulphoaluminate cement (CSAC) is an attractive candidate for biomedical applications due to its appropriate mechanical properties and high calcium content. In vitro bioactivity and hemocompatibility of calcium sulphoaluminate cement were assessed. The cement was prepared from a mixture of calcium sulphoaluminate (CSA) clinker, gypsum and water. Cemen
Mat. Res.. Publicado em: 2015-04
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12. Biocompatibility and setting time of CPM-MTA and white Portland cement clinker with or without calcium sulfate
Objective To evaluate the biocompatibility and the setting time of Portland cement clinker with or without 2% or 5% calcium sulfate and MTA-CPM. Material and Methods Twenty-four mice (Rattus norvegicus) received subcutaneously polyethylene tubes filled with Portland cement clinker with or without 2% or 5% calcium sulfate and MTA. After 15, 30 and 60 days o
J. Appl. Oral Sci.. Publicado em: 2013-02