Incorporation of quartzite fines in the production of red ceramics

In the municipal area of Campos dos Goytacazes–RJ several ceramic industries are involved with a significant production of bricks and tiles. These ceramic products can serve as matrices for the incorporation of industrial residues such as the ash of sugarcane bagasse used as fuel in the boilers of the sugar and alcohol plants. The incorporation of ashes in ceramics is a solution that eventually can cause an improvement on the properties of the material. The objective of this work is to characterize granulometric fractions of sugarcane bagasse ash with particle sizes less than 149, 75 and 44 μm aiming at the ash incorporation into red ceramics. Chemical, mineralogical and microstructural characterization were carried out in the granulometric fractions. The results showed that the granulometric fractions present as main crystalline phase the cristobalite and that the ashes with smaller particle sizes can improve the densification of the ceramic body by the formation of more liquid phase during firing, due to the presence of less silica and more alkaline- and alkaline-earth oxides than the original ash.

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Uso da argila no processo produtivo da cerâmica vermelha: Um estudo de caso no município de Paudalho, Pernambuco

Revista Verde de Agroecologia e Desenvolvimento Sustentável ◽

10.18378/rvads.v10i1.2894 ◽

2015 ◽

Vol 10 (1) ◽

Author(s):

Y. M. Paz ◽

R. M. Holanda ◽

S. G. El-Deir

Keyword(s):

Natural Resources ◽

Production Process ◽

High Availability ◽

Raw Material ◽

Renewable Natural Resources ◽

Ceramic Blocks ◽

Renewable Natural Resource ◽

The City ◽

Red Ceramics

As frações granulométricas do solo são consideradas recursos naturais não renováveis, devido a escala de tempo necessária para sua formação. A argila possui elevada disponibilidade na natureza, e por isso seu uso ainda é indiscriminado. É a matéria-prima principal para as indústrias de cerâmica vermelha pulverizadas em todo o território brasileiro. O objetivo do trabalho foi realizar uma discussão acerca do recurso natural não renovável argila e seu uso no processo produtivo da Indústria de cerâmica vermelha. Este foi desenvolvido através de pesquisa bibliográfica, e estudo de caso com realização de visitas técnicas a uma indústria de cerâmica vermelha localizada no município de Paudalho no estado de Pernambuco. No ano de 2013 a Indústria X adquiriu para estoque e consumo 70.161 toneladas, para uma produção de 35.806.268 blocos de cerâmica. De todo o quantitativo produzido houve uma perda de 7,5%, que reflete em 4.768 toneladas de argila e num prejuízo aproximado de R$ 845.835,52. Através do trabalho realizado percebe-se que há uma necessidade de planejamento da exploração e uso dos recursos naturais não renováveis, pois estes podem se tornar escassos e inviabilizar determinados processos produtivos. Isso pode acarretar em conflitos sociais e econômicos, pela valoração dos recursos e diminuição de disponibilidade para uso, ocasionando redução dos lucros por parte dos empresários e por consequência diminuição na oferta de empregos.Use of clay in the production process of the Red Ceramics: A case study in the city of Paudalho, Pernambuco Abstract: The fractions of soil are considered non-renewable natural resources, because the time scale required for its formation. Clay has high availability in nature, and therefore its use is still indiscriminate. It is the main raw material for the manufacture of red ceramic sprayed throughout the Brazilian territory. The objective was to conduct a discussion of non-renewable natural resource clay and its use in industry's production process of red ceramic. It was developed through literature review and case study of technical a red ceramic industry in the municipality of Paudalho in Pernambuco state visits. In 2013 the X Industry acquired for stock and consumption 70,161 tons, for a production of 35,806,268 ceramic blocks. The entire quantity produced there was a loss of 7.5%, which reflects in 4,768 tons of clay and an approximate loss of R $ 845,835.52. Through work is noticed that there is a need for planning of exploration and use of non-renewable natural resources, as they may become scarce and derail certain production processes. This can lead to social and economic conflicts, the valuation of resources and reduced availability for use, resulting in lower profits for entrepreneurs and consequently decrease in the supply of jobs.

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IMPLANTAÇÃO DO BALANCED SCORECARD EM UMA INDÚSTRIA DE CERÂMICA VERMELHA

Revista Expressão Católica ◽

10.25190/rec.v7i2.2235 ◽

2018 ◽

Vol 7 (2) ◽

pp. 72

Author(s):

Célio Gomes de Lima Júnior ◽

Julianne das Chagas Gomes ◽

José Guilherme Said Pierre Carneiro ◽

José Sarto Freire Castelo

Keyword(s):

Strategic Management ◽

Balanced Scorecard ◽

Management Tool ◽

Management Model ◽

Managerial Control ◽

Management Tools ◽

The Balanced Scorecard ◽

The Creation ◽

Ceramics Industry ◽

Red Ceramics

A implantação de ferramentas de gestão, como o Balanced Scorecard (BSC), envolve mudanças no controle gerencial de uma empresa em diversos aspectos, pois enfatiza a comunicação de estratégias e a criação de uma nova metodologia para o controle de desempenho. O objetivo deste estudo é realizar uma análise crítica sobre a aplicação do Balanced Scorecard em uma indústria de cerâmica vermelha, a partir da construção e da implementação dessa ferramenta de gestão em uma cerâmica localizada no município de Russas, Ceará. O estudo de caso revelou a necessidade de rever a gestão estratégica da empresa, em virtude da criação de mecanismos eficientes de alimentação dos indicadores pertencentes ao mapa estratégico, de modo a refletir sobre a situação da mesma, e por fim, garantiu que os gestores e funcionários estivessem alinhados com o modelo de gestão estratégica recém-implantado, a fim de que seja possível obter as vantagens propiciadas por este modelo de gestão. IMPLEMENTATION OF BALANCED SCORECARD IN A RED CERAMICS INDUSTRY ABSTRACT The implementation of management tools such as the Balanced Scorecard (BSC) involves changes in the managerial control of a company in several aspects, as it emphasizes the communication of strategies and the creation of a new methodology for performance control. The objective of this study is to perform a critical analysis on the application of the Balanced Scorecard in a red ceramics industry from the construction and the implementation of this management tool in a ceramics located in the municipality of Russas, Ceará. The case study revealed the need to review the strategic management of the company due to the creation of efficient mechanisms to feed the indicators belonging to the strategic map, in order to reflect on the situation of the company, and finally ensured that managers and employees were aligned with the newly implemented strategic management model, in order to obtain the advantages provided by this management model.

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Characterization of a Red Mud and a Clay Body for Ceramic Fabrication

Materials Science Forum ◽

10.4028/www.scientific.net/msf.798-799.514 ◽

2014 ◽

Vol 798-799 ◽

pp. 514-519 ◽

Cited By ~ 4

Author(s):

Michelle Pereira Babisk ◽

Thalissa Pizetta Altoé ◽

Henrique Junio de Oliveira Lopes ◽

Ulisses Soares do Prado ◽

Monica Castoldi Borlini Gadioli ◽

...

Keyword(s):

Red Mud ◽

Mineralogical Composition ◽

Processing Plants ◽

Clay Matrix ◽

Clay Body ◽

Clay Ceramics ◽

Red Ceramics ◽

Ceramic Clay

Red mud is a specific term applied for a residue generated during the processing of aluminum ores, mainly bauxite in the Bayer process, to produce alumina (Al2O3). In several countries where bauxite is mined and processed, distinct red muds are generated in ever growing amounts and becoming an environmental problem. This problem is also affecting the large bauxite processing plants in Brazil and a possible solution for the red mud is its addition to clay ceramics. Before an industrial scale addition is implanted, the specific red mud needs to be characterized for compatible behavior with the ceramic clay matrix. Therefore, the objective of the present work was to characterize a red mud generated in Brazil for an eventual addition to clay ceramic. This was conducted through the determination of density, chemical and mineralogical composition as well as size distribution and microscopic observation of particles. The results indicated that the specific red mud investigated is compatible with clays and has a potential for addition in common red ceramics.

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Characterization of Ornamental Stones Wastes for Use in Ceramic Materials

Materials Science Forum ◽

10.4028/www.scientific.net/msf.958.129 ◽

2019 ◽

Vol 958 ◽

pp. 129-134 ◽

Cited By ~ 1

Author(s):

Monica Castoldi Borlini Gadioli ◽

Victor Moza Ponciano ◽

Bárbara da Hora Rocha Bessa ◽

Jefferson Luiz Camargo ◽

Pedro Porto Pizeta

Keyword(s):

Morphological Analysis ◽

Ceramic Materials ◽

Environmental Classification ◽

Ornamental Stones ◽

Conventional Technology ◽

Alkaline Oxides ◽

Red Ceramics

Ornamental stones processing produces large amounts of wastes, which without treatment, are disposed in deposits, constituting the major environmental problem in this sector in Brazil. There is a great variety of rocks and different technologies in the ornamental stones processing. Rock block sawing can be performed using multi-blade gangsaw, the conventional technology, or multiwire gangsaw, latest technology which uses only diamond wire and water to cut blocks. In recent years there has been a great change in the use of ornamental stones sawing technologies, where currently almost 50% of the sawed materials are processed by the multi wire technology. The ornamental stones wastes have compounds that can collaborate in the processing of the ceramic. Due to the great variety of Brazilian ornamental stones and technologies in addition to the growth of de sector in recent years, there is a need for new studies regard to the characterization and environmental classification of waste, for a better management and application. Therefore, the objective of this work was the characterization and environmental classification of ornamental stones wastes aiming their use in red ceramics. The wastes were characterized with the determination of its chemical composition and mineralogical analysis, particle size, morphological analysis and environmental, the latter by means of the leaching and solubilization tests, for subsequent classification. The wastes are composed mainly of SiO2, Al2O3, alkaline oxides, earth alkaline oxides and iron, and those which were submitted to the leaching and solubilization tests are classified as non-inert.

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Experimental Drying of Ceramics Bricks Including Shrinkage

Defect and Diffusion Forum ◽

10.4028/www.scientific.net/ddf.365.106 ◽

2015 ◽

Vol 365 ◽

pp. 106-111 ◽

Cited By ~ 6

Author(s):

J.J.S. Nascimento ◽

F.A. Belo ◽

Antônio Gilson Barbosa de Lima

Keyword(s):

Body Shape ◽

Initial Moisture Content ◽

Experimental Tests ◽

Clay Material ◽

Drying Process ◽

Volume Changes ◽

Air Drying ◽

Different Dimensions ◽

Ball Clay ◽

Red Ceramics

This work presents an experimental study on the behavior of clays during the drying process. Experimental tests were carried out with clay material for the production of red ceramics and white ceramic (ball clay). Different dimensions and the material initial moisture content plus temperature and relative air-drying humidity were taken into account. Drying kinetics and volume changes of parallelepiped-shaped samples were shown and analyzed. It has been verified that air-drying temperatures and body shape have an enormous influence on the drying rate process. The drying process occurs during the falling drying period and the volume changes display two linear periods.

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Effect of the Particle Size of the Grog on the Properties and Microstructure of Bricks

Materials Science Forum ◽

10.4028/www.scientific.net/msf.530-531.438 ◽

2006 ◽

Vol 530-531 ◽

pp. 438-443 ◽

Cited By ~ 5

Author(s):

Carlos Maurício Fontes Vieira ◽

Sérgio Neves Monteiro

Keyword(s):

Particle Size ◽

Mechanical Strength ◽

Red Ceramics

Crushed fired brick waste, known as grog, screened at two different particle size, 840 (20 mesh) and 420 μm (80 mesh), was used in mixtures with clayey body to make typical red ceramics for bricks. The effect of the grog addition up to 20 wt.% on the properties and microstructure of bricks fired at 700oC was evaluated. The results indicated that both the particle size and the amount of grog addition changed the fired properties of the clayey body. Additions above 5 wt.% of grog, with a coarser particle size, decreased the mechanical strength of both the dry body and the fired ceramic pieces. By contrast, grog with a finer particle size may be used up to 10% wt. without deteriorate the properties and corresponding microstructure of the clayey body.

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