Reformulation of a Kaolinitic Clay Ceramic Body with Sand and Flux Clay for Roofing Tiles Production

2012 ◽  
Vol 727-728 ◽  
pp. 965-970 ◽  
Author(s):  
Carlos Maurício Fontes Vieira ◽  
Sérgio Neves Monteiro
Keyword(s):  
Mechanical Strength ◽  
Water Absorption ◽  
Rupture Strength ◽  
Ceramic Body ◽  
Linear Shrinkage ◽  
Flexural Behavior ◽  
Ceramic Product ◽  
Technological Properties ◽  
Kaolinitic Clay ◽  
Press Molding

A ceramic body traditionally used to produce bricks and roofing tiles was reformulated by the addition of sand and illitic clay. The objective was to obtain a ceramic product with better technological properties. Specimens were made by uniaxial press-molding at 20 MPa and then fired at temperatures varying from 850 to 1100°C. The determined technological properties were: linear shrinkage, water absorption and flexural rupture strength. The results showed that both sand and illitic clay contribute to reduce the water absorption of the industrial clayey body. With respect to the flexural behavior, it was observed that the incorporation of sand decreased the mechanical strength. On the other hand, the illitic, incorporated in an amounts of 30 wt.% contributed to increase the mechanical strength of the clayey ceramic.

Influence of the Granite Waste into a Clayey Ceramic Body for Rustic Wall Tiles

2012 ◽  
Vol 727-728 ◽  
pp. 1057-1062 ◽  
Author(s):  
Monica Castoldi Borlini Gadioli ◽  
Mariane Costalonga de Aguiar ◽  
Abiliane de Andrade Pazeto ◽  
Sérgio Neves Monteiro ◽  
Carlos Maurício Fontes Vieira
Keyword(s):  
Mechanical Strength ◽  
Water Absorption ◽  
Raw Materials ◽  
Rupture Strength ◽  
Ceramic Body ◽  
Linear Shrinkage ◽  
Ceramic Production ◽  
Ornamental Stones ◽  
Error Bar ◽  
Press Molding

This work has as its objective to evaluate the influence of a granite waste into a clayey ceramic body for obtaining of rustic wall tiles. As raw materials, a clayey ceramic body for red ceramic production and a granite waste, resulting from ornamental stones cutting with the multi-wire technology were used. Compositions using 0, 10, 20 and 30% of waste incorporated into ceramic body were prepared. Specimens were fabricated by uniaxial press-molding at 20 MPa and sintered at 1050°C. The following properties were determined: linear shrinkage, water absorption and flexural rupture strength. In general, within the error bar, there was no influence of the waste in the values of water absorption of the clayey ceramic body. The results showed that all investigated formulations used in this work for the production of rustic wall tiles attend the standards for water absorption and mechanical strength.

Recycling of Benefited Blast Furnace Sludge into Red Clay Ceramic

2014 ◽  
Vol 775-776 ◽  
pp. 607-612
Author(s):  
Carlos Maurício Fontes Vieira ◽  
Sergio Neves Monteiro ◽  
Mariana Miranda Abreu ◽  
Aline Vieira Riter ◽  
Fernando Vernilli ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Mechanical Strength ◽  
Water Absorption ◽  
Rupture Strength ◽  
Linear Shrinkage ◽  
Technological Properties ◽  
Steelmaking Process ◽  
Red Clay ◽  
Blast Furnace Gas ◽  
Blast Furnace Sludge

The blast furnace sludge is a waste generated after the washing step of the blast furnace gas. The reuse of this waste in the steelmaking process itself is quite problematic. This study aims to analyze the possibility of the incorporation of a type of blast furnace sludge, benefited by a process that uses helical separators, into red ceramic. Specimens were prepared by uniaxial pressing at 20 MPa and then fired at 750°C and 950°C. The evaluated technological properties were linear shrinkage, water absorption and flexural rupture strength. The results showed that the benefited blast furnace sludge significantly influences the evaluated properties, by impairing the linear shrinkage and the water absorption but improving the mechanical strength.

Influence of Firing Temperature on the Behavior of Clay Ceramics Incorporated with Elephant Grass Ash

2014 ◽  
Vol 798-799 ◽  
pp. 526-531 ◽  
Author(s):  
Aline Marcia Ferreira Dias da Silva ◽  
Rosane Toledo ◽  
Veronica Scarpini Candido ◽  
Sergio Neves Monteiro ◽  
Carlos Maurício Fontes Vieira ◽  
...  
Keyword(s):  
Water Absorption ◽  
Firing Temperature ◽  
Rupture Strength ◽  
Linear Shrinkage ◽  
Standard Test ◽  
Elephant Grass ◽  
Technological Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Clay Ceramics

The microstructural and technological properties of clay ceramic incorporated with 10 and 20 wt% of elephant grass ashes were investigated at different firing temperatures of 650, 850 and 1050oC. X-ray diffraction were used to obtain the minerals and phase compositions. The microstructure was analyzed by scanning electron microscopy. The technical properties related to water absorption, linear shrinkage and flexural rupture strength were obtained by standard test. The results showed significant changes in the microstructure and phasic composition with increasing firing temperature. A marked improvement in the water absorption, decreasing to 18% as well as increase in strength, above 5 MPa, was found at 1050°C. However, only a slight contribution might be attributed to the incorporation of elephant grass ash. Nevertheless, its use as a by-product and the associated saving in clay are relevant environmental and economical advantages.

Effect of the Particle Size of an Ash from Sugarcane Bagasse in the Properties of Red Ceramics

2006 ◽  
Vol 530-531 ◽  
pp. 538-543 ◽  
Author(s):  
Monica Castoldi Borlini Gadioli ◽  
J.L.C.C. Mendonça ◽  
R.A. Conte ◽  
Daltro Garcia Pinatti ◽  
Carlos Maurício Fontes Vieira ◽  
...  
Keyword(s):  
Particle Size ◽  
Mechanical Strength ◽  
Water Absorption ◽  
Sugarcane Bagasse ◽  
Particle Sizes ◽  
Technological Properties ◽  
Kaolinitic Clay ◽  
Red Ceramics

The influence of the particle size of an ash from sugarcane bagasse on the properties of incorporated red ceramics was investigated. Mixtures of kaolinitic clay from the municipal area of Campos of Goytacazes-RJ were prepared with additions of 0, 5 and 10% in weight of ashes from sugarcane bagasse. Ashes with different particle sizes lower than 149 μm (100 mesh), 75 μm (200 mesh) and 44 μm (325 mesh), were used in each incorporated composition. Specimens were 20 MPa uniaxially press-molded and sintered at 900 and 1050°C. The firing technological properties evaluated were diametrical shrinkage, water absorption and mechanical strength by diametrical compression. The results showed that the ash incorporation caused significant changes in the ceramic properties.

Recycling of Steel Sludge into Red Ceramic

2006 ◽  
Vol 530-531 ◽  
pp. 544-549 ◽  
Author(s):  
P.M. Andrade ◽  
Carlos Maurício Fontes Vieira ◽  
Sérgio Neves Monteiro ◽  
F. Vernilli Jr.
Keyword(s):  
Flexural Strength ◽  
Water Absorption ◽  
Bulk Density ◽  
Low Temperatures ◽  
Linear Shrinkage ◽  
Uniaxial Pressure ◽  
Technological Properties ◽  
Sludge Waste ◽  
Kaolinitic Clay ◽  
Density Linear

The present paper has for objective to evaluate the effect of fine steel sludge waste incorporation on the properties and microstructure of a kaolinitic clayey body used to the fabrication of bricks and roofing tiles. Compositions were prepared with additions of waste of 0, 5 and 10 wt.% in a kaolinitic clay from the county of Campos dos Goytacazes, State of Rio de Janeiro, Brazil. To determine the technological properties such as bulk density, linear shrinkage, water absorption and flexural strength, specimens were prepared by uniaxial pressure at 20 MPa and then fired in a laboratory furnace at 700°C, 900°C and 1100°C. The microstructure of the fired specimen was evaluated by SEM. The results showed that the incorporation up to 10 wt. % of fine steel sludge does not change the ceramic properties, specially, at low temperatures. Hence, the recycling of steel sludge into red ceramic fabrication can be considered as an environmentally correct solution for the final disposal of this type of waste.

Quality Technological Properties of Foundry Exhaust Dust as Alternative Ceramic Coating Raw Materials

2015 ◽  
Vol 1088 ◽  
pp. 395-398
Author(s):  
Luiz Oliveira Veriano dalla Valentina ◽  
Marilena Valadares Folgueras ◽  
Wanessa Rejane Knop ◽  
Maria Cristina Pacheco do Nascimento ◽  
Glaucia Aparecida Prates
Keyword(s):  
Water Absorption ◽  
Bulk Density ◽  
Ceramic Coating ◽  
Raw Materials ◽  
Linear Shrinkage ◽  
Inert Atmosphere ◽  
Technological Properties ◽  
Foundry Industry ◽  
Ceramic Manufacturing ◽  
Materials Used

The work evaluates the possibility of the use the exhauster powder generated in the foundry process in ceramic mass atomized semigre type. The raw materials used were semi-stoneware kind atomized powder used on the coating ceramic manufacturing and dust exhaust byproduct supplied by a foundry industry both from brazilian industries . Tests were conducted using a heating rate of 10o.C / min and oxidant and / or inert atmosphere. Specimens contained different amounts of byproduct to the extent of 30% by mass, in order to verify the maximum addition of byproduct and were used in order to analyze the technological properties evaluation (water absorption linear shrinkage, bulk density). at the temperature of 1100 ° C showed higher difference between the results obtained and 1200o C this difference decreased.

Assessment of the Technological Properties of High Temperature Fired Clayey Ceramics Incorporated with Glass Waste

2015 ◽  
Vol 820 ◽  
pp. 449-454
Author(s):  
Alline Sardinha Cordeiro Morais ◽  
Thais Mardegan Louzada ◽  
Veronica Scarpini Candido ◽  
Sergio Neves Monteiro ◽  
Carlos Mauricio Fontes Vieira
Keyword(s):  
High Temperature ◽  
Water Absorption ◽  
Glass Powder ◽  
Linear Shrinkage ◽  
Substantial Improvement ◽  
Industrial Wastes ◽  
Technological Properties ◽  
Glass Waste ◽  
Fluorescent Lamps ◽  
Higher Temperature

The incorporation of industrial wastes into clayey ceramics used in civil construction is becoming a worldwide procedure not only to provide an environmentally correct destination for the waste but, in some cases, to improve the ceramic properties. The objective of the present work was to evaluate the effect of incorporation of a glass powder waste from decontamination process of fluorescent lamps into clayey ceramics. This evaluation was performed based on the technological properties of water absorption, linear shrinkage ad flexural strength. The properties evaluation was complemented by optical microscopy structural observation. The glass waste was incorporated in up to 30 wt% and specimens were uniaxially pressed at 20 MPa and fired at a relatively higher temperature of 1000°C. The results confirmed a substantial improvement of both the water absorption and the strength with glass waste incorporation into clayey ceramics.

Incorporation of Petroleum Coke into Red Ceramic

2010 ◽  
Vol 660-661 ◽  
pp. 681-685
Author(s):  
Carlos Maurício Fontes Vieira ◽  
Lussandra Arêdes Freitas ◽  
Rubén Jesus Sánchez Rodríguez ◽  
Sérgio Neves Monteiro
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Water Absorption ◽  
Optical Microscopy ◽  
Petroleum Coke ◽  
Rupture Strength ◽  
Physical And Mechanical Properties ◽  
Refining Plant

This work has as its objective to evaluate the effect in the physical and mechanical properties of a red ceramic by the incorporation of petroleum coke from a refining plant. The characterization of the coke was done by optical microscopy and DTA/TG. Compositions were prepared with 0, 1, 2 and 4 wt.% of petroleum coke incorporated into a kaolinitic clayey body. Rectangular specimens were formed by extrusion before firing at 950°C. The determined physical and mechanical properties were: flexural rupture strength and water absorption. The microstructure of the fired ceramics was evaluated by SEM. The results showed that the incorporation of up to 4 wt.% of petroleum coke is not deleterious to the water absorption and mechanical strength of the clayey ceramic fired at 950oC.

scholarly journals Identification of an appropriate body composition for red clay products

Cerâmica ◽  
2010 ◽  
Vol 56 (339) ◽  
pp. 285-290 ◽  
Author(s):  
P. Hettiarachchi ◽  
J. T. S. Motha ◽  
H. M. T. G. A. Pitawala
Keyword(s):  
Flexural Strength ◽  
Water Absorption ◽  
Raw Materials ◽  
Mineralogical Composition ◽  
Linear Shrinkage ◽  
The Body ◽  
Technological Properties ◽  
Red Clay ◽  
Silt Fraction ◽  
Quality Product

This study focuses on the identification of an appropriate composition of raw materials for ceramic products from commonly available red clays in Sri Lanka. The raw materials were characterized in terms of particle size distribution, chemical and mineralogical composition. Different formulations of samples were prepared, and the linear shrinkage, water absorption and flexural strength of the final products were measured. Microstructures of fired samples were observed under a scanning electron microscope. The best quality product was obtained when the sample contains a high amount of illite clay in a mixture of 80 wt.% clay-silt and 20 wt.% sand. The presence of higher concentrations of the metal oxides Na2O, K2O and Fe2O3 (total ~21 wt.%) in the clay-silt fraction of samples has resulted in obtaining higher technological properties of the body. The flexural strength and the water absorption of the product are 26.82 MPa and 6.51% respectively. If the raw materials contain lower amounts of the oxides Na2O, K2O and Fe2O3, higher amounts of clay-silt fraction (up to 90 wt.%) must be added to obtain an optimum quality product.

Effect of the Addition of the Waste Generated from the Feldspar Mining on the Obtainment of Ceramic Brick

2018 ◽  
Vol 930 ◽  
pp. 164-169 ◽  
Author(s):  
Felipe de Luca Sartor ◽  
Luís Philipe Spricigo ◽  
Danila Ferreira Niero ◽  
Adriano Michael Bernardin ◽  
Oscar Rubem Klegues Montedo ◽  
...  
Keyword(s):  
Water Absorption ◽  
Analysis Of Variance ◽  
Bending Strength ◽  
Statistical Significance ◽  
Linear Shrinkage ◽  
Technological Properties ◽  
Clay Brick ◽  
Ceramic Brick ◽  
Santa Catarina ◽  
Mining Company

TheNossa Senhora do Carmomining company, located at the southern of Santa Catarina (SC), Brazil, explores a large amount of feldspar to the ceramic market. As a result, waste is inevitable in the production and processing of the feldspar mineral, which results in an environmental impact. Therefore, this study aims to evaluate the effect of the addition of the waste coming from the feldspar mining in the composition of ceramic bricks. In this way, the waste and a clay mineral were characterized. The waste (0, 5, 15 and 25 wt%) was added to a composition of clay brick based on a standard clay fromMorro da Fumaça, Santa Catarina, Brazil. Specimens were extruded and sintered at temperatures of 1123, 1223, and 1323 K. The technological properties assessed in this study were linear shrinkage, water absorption and bending strength. The data were assessed by analysis of variance. The results showed the feasibility of adding 15 and 25 wt% of waste to the brick composition. All technological properties were improved when compared to pure samples, except for linear shrinkage. The analysis of variance showed significant and reproducible effects for the water absorption results. The results for linear shrinkage and bending strength showed no statistical significance.

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