Influence of the Granulometry of the Granite Residue on the Sorptivity of Ceramic Blocks

2021 ◽  
pp. 463-470
Author(s):  
E. B. Zanelato ◽  
A. R. G. Azevedo ◽  
M. T. Marvila ◽  
T. Lima ◽  
J. Alexandre ◽  
...  
Keyword(s):  
Ceramic Blocks

Effect of machining characteristics on polishing ceramic blocks

2005 ◽  
Vol 26 (9-10) ◽  
pp. 999-1005 ◽  
Author(s):  
Ming-Fong Huang ◽  
Tsann-Rong Lin ◽  
Huan-Chung Chiu
Keyword(s):  
Ceramic Blocks ◽  
Machining Characteristics

scholarly journals Propriedades mecânicas de tijolos fabricados com solo e água residuária de mandioca

2015 ◽  
Vol 10 (2) ◽  
pp. 213-217 ◽  
Author(s):  
N. C. de Araújo ◽  
A. P. Ramos ◽  
A. J. P. Queiroz ◽  
R. C. dos Santos ◽  
J. Da S. Buriti
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Natural Resources ◽  
Water Absorption ◽  
Ceramic Material ◽  
Manufacturing Process ◽  
Bending Strength ◽  
Ceramic Blocks ◽  
Ceramic Paste ◽  
Bodies Of Evidence

A vantagem do processo de fabricação de tijolos com manipueira é ser ecologicamente correto, pois não consome água, nem há necessidade de ir ao forno, economizando recursos naturais e fazendo uso de um efluente altamente poluente. Assim, este trabalho objetivou analisar as propriedades mecânicas de tijolos fabricados com solo associado à manipueira como alternativa sustentável. Foram avaliados os parâmetros absorção de água e resistência à flexão. Em conformidade com os resultados, observou-se que as massas cerâmicas apresentaram valores de absorção de água da ordem de 10 a 13 %, valores aceitáveis para fabricação de blocos cerâmicos e valores de resistência a flexão adequados para fabricação de tijolos maciços, tanto, os corpos de prova com queima quanto os corpos de provas sem queima. Assim, conclui-se que a troca da água pela adição da manipueira na massa cerâmica não interfere nas propriedades mecânicas e esta pode ser adicionada a massa cerâmica para fabricação de tijolos ecológicos através do processo de prensagem.Mechanical properties of manufactured bricks with soil and cassava wastewaterAbstract: The advantage of the manufacturing process of brick with cassava is being environmentally friendly because it does not consume water, and there is no need to go to the oven, saving natural resources and making use of a highly polluting effluent. This work aimed to analyze the mechanical properties of bricks made from soil associated with cassava as a sustainable alternative. Parameters were evaluated water absorption and flexural strength. In accordance with the results, it was observed that the ceramic material provided water absorption values of the order of 10 to 13%, acceptable values for manufacturing ceramic blocks and bending strength values suitable for manufacture of solid bricks, both proof bodies test with burns as the proof bodies of evidence without burning. It is therefore concluded that the replacement of water by the addition of cassava the ceramic mass does not interfere with the mechanical properties and that can be added to the ceramic paste for manufacturing green bricks through the pressing process.

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

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.

Performance of Precursor Materials and Fired Ceramics for Structural Blocks

2015 ◽  
Vol 820 ◽  
pp. 13-17
Author(s):  
Neila Gondim Azeredo ◽  
Euzébio Barnabé Zanelato ◽  
Jonas Alexandre ◽  
Afonso Rangel Garcez de Azevedo ◽  
Gustavo de Castro Xavier ◽  
...  
Keyword(s):  
Building Construction ◽  
Structural Ceramic ◽  
X Ray Diffraction ◽  
Mineralogical Characterization ◽  
X Ray ◽  
Physical Chemical ◽  
Ceramic Blocks ◽  
Clay Body ◽  
Structural Blocks

The physical, chemical and mineralogical characterization of a precursor clay body before firing is of relevance for understanding the technological performance of the fired clay ceramic. In particular, structural clay ceramic blocks used in building construction need to attend standard properties specified by the norms. In the present work the precursor clay body, typically used to fabricate structural blocks in Campos dos Goytacazes, state of Rio de Janeiro, Brazil, was characterized in terms of particle size distribution, X-ray diffraction, chemical composition and Atterberg limits. In addition, the performance of structural ceramic blocks, fabricated from the extruded clay body and fired at 850oC, was evaluated. The results indicated that the ceramic mechanical strength complies with the Brazilian norm but the water absorption is higher than the maximum specified by the norm. The characteristic of the clay body contribute to justify the structural blocks performance.

Addition of Ornamental Rock Residues on Ceramic Blocks: Physical and Chemical Analysis

2020 ◽  
Vol 1012 ◽  
pp. 262-267
Author(s):  
Michelle Souza Oliveira ◽  
Fabio da Costa Garcia Filho ◽  
Fernanda Santos da Luz ◽  
Euzébio Bernabé Zanelato ◽  
Jonas Alexandre ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Industrial Waste ◽  
Chemical Characterization ◽  
Cementitious Materials ◽  
Physical And Chemical Characterization ◽  
Ceramic Blocks ◽  
Physical And Chemical

The incorporation of industrial waste in cementitious materials is an alternative for its adequate disposal. Among the residues that do not yet have adequate disposal are the residues created by the ornamental rock industries. In this context, this work aims to identify and characterize clays of the region where the ornamental rock industry is dominant and to verify the performance of the ceramic masses with the incorporation of the marble and granite residue. Physical and chemical characterization tests were performed on both clay and residues. After the identification of the two best clays, ceramic masses were prepared where it was possible to evaluate the performance of the clays with each of the residues in incorporations up to 20 wt.%. The results indicated that CI-A with 15 wt.% marble incorporation obtained the best performance.

scholarly journals Effect of the bur grit size on the flexural strength of a glass-ceramic

Cerâmica ◽  
2016 ◽  
Vol 62 (362) ◽  
pp. 121-127 ◽  
Author(s):  
P. P. Kist ◽  
I. L. Aurélio ◽  
M. Amaral ◽  
L. G. May
Keyword(s):  
Surface Roughness ◽  
Flexural Strength ◽  
Glass Ceramic ◽  
Glass Ceramics ◽  
Internal Surface ◽  
Grit Size ◽  
Diamond Grit ◽  
Cad Cam ◽  
Negative Effect ◽  
Ceramic Blocks

Abstract The purpose of the present study was to determine the biaxial flexural strength (BFS) of a CAD/CAM leucite reinforced glass-ceramic ground by diamond burs of different grit sizes and the influence of surface roughness on the BFS. For this, 104 plates were obtained from CAD/CAM ceramic blocks and divided into 4 groups (n = 26), according to bur grit size: extra-fine, fine, medium and coarse. Roughness parameters (Ra, RyMax) were measured, and plates were kept dry for 7 days. The flexural test was carried out and BFS was calculated. Ra, RyMax and BFS data were subjected to analysis of variance and post-hoc test. Weibull analysis was used to compare characteristic strength and Weibull modulus. Regression analysis was performed for BFS vs. Ra and RyMax. When burs with coarse grit were used, higher surface roughness values were found, causing a negative effect on the ceramic BFS (117 MPa for extra-fine, and 83 MPa for coarse). Correlation (r) between surface roughness and BFS was 0.78 for RyMax and 0.73 for Ra. Increases in diamond grit size have a significant negative effect on the BFS of leucite-reinforced glass-ceramics, suggesting that grinding of sintered glass-ceramic should be performed using burs with the finest grit possible in order to minimize internal surface flaws and maximize flexural strength.

Incorporation of Waste Ceramic Blocks in Structural Ceramics

2016 ◽  
pp. 249-253
Author(s):  
Orley Magalhães de Oliveira ◽  
Maria das Graças da Silva-Valenzuela ◽  
Christiano Gianesi Bastos Andrade ◽  
Antonio Hortêncio Munhoz Junior ◽  
Francisco Rolando Valenzuela-Díaz
Keyword(s):  
Structural Ceramics ◽  
Ceramic Blocks

scholarly journals Industrial Ceramic Blocks for Buildings: Clay Characterization and Drying Experimental Study

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2834
Author(s):  
A.M. Vasconcelos da Silva ◽  
J.M.P.Q. Delgado ◽  
A.S. Guimarães ◽  
W.M.P. Barbosa de Lima ◽  
R. Soares Gomez ◽  
...  
Keyword(s):  
Mass Loss ◽  
Particle Diameter ◽  
Ceramic Materials ◽  
Raw Material ◽  
Average Particle ◽  
Ceramic Block ◽  
Ceramic Blocks ◽  
Dimensional Variation ◽  
Forced Air ◽  
Air Circulation

The conformation of a ceramic piece follows the steps of preparing the raw material, molding, lamination, drying, and firing. Drying is a thermodynamic process of heat and mass transfer, with dimensional variations of the product that requires a large amount of energy. Ceramic materials when exposed to non-uniform drying may suffer cracks and deformations, reducing their post-drying quality. Thus, this work aimed to study the drying of industrial ceramic blocks in an oven with forced air circulation. Experiments were carried out to characterize the clay and drying of the ceramic block at temperatures ranging from 50 °C to 100 °C. Results of the chemical, mineralogical, granulometric, differential thermal, and thermogravimetric analysis of the clay, and heating kinetics, mass loss, and dimensional variation of the industrial ceramic block are presented and analyzed in detail. It was found that the clay is basically composed of silica and alumina (≈ 80.96%), with an average particle diameter of 13.36 μm. The study proved that drying at high temperature and low relative humidity of the air generates high rates of mass loss, heating, and volumetric shrinkage in the ceramic product, and high thermo-hydraulic stresses, which cause the appearance and propagation of cracks, gaps, and cleavages, compromising the final quality of the product.

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