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.

Microstructural Analysis of Petroleum Waste Containing Ceramic Tile

2008 ◽  
Vol 591-593 ◽  
pp. 845-848 ◽  
Author(s):  
Bruno C.A. Pinheiro ◽  
J.N.F. Holanda
Keyword(s):  
Water Absorption ◽  
Microstructural Evolution ◽  
Ceramic Tile ◽  
Sintered Density ◽  
Raw Materials ◽  
Microstructural Analysis ◽  
Linear Shrinkage ◽  
Ceramic Tiles ◽  
Petroleum Waste ◽  
Materials Used

In this work is done a study on the sintered microstructure of ceramic tile paste incorporated with petroleum waste. The raw materials used were kaolin, sodic feldspar, quartz and petroleum waste. The ceramic tiles containing up to 5 wt% petroleum waste were prepared by uniaxial pressing and sintered at 1200°C. The microstructural evolution was examined by SEM. In addition, water absorption, linear shrinkage, and sintered density were determined. The results showed that the microstructure of the ceramic tiles is influenced by the added petroleum waste.

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.

scholarly journals Investigation on Physico-Chemical Properties of Vitreous China Sanitary Ware from Local Clays

1970 ◽  
Vol 45 (4) ◽  
pp. 387-392 ◽  
Author(s):  
Shahnaj Parveen ◽  
Shirin Akter Jahan
Keyword(s):  
Water Absorption ◽  
Bulk Density ◽  
Raw Materials ◽  
Linear Shrinkage ◽  
Sanitary Ware ◽  
Modulus Of Rupture ◽  
Filler Materials ◽  
Chemical Compositions ◽  
Red Clay ◽  
Black Clay

The cost of producing sanitary ware in Bangladesh is substantially low as compared to the advanced countries, because of low labour cost and abundance of basic raw materials. Ten sanitary ware compositions were prepared using Bijoypur clay, black clay, red clay, ball clay and china clay with fluxes and filler materials. Chemical compositions of the raw materials and the formulated batch compositions were determined. Physical properties (linear shrinkage, bulk density, apparent porosity, water absorption etc) and the modulus of rupture (MOR) of the prepared body compositions were also determined. The sample specimens were fired at 1150°C and 1200°C. Compositions S-3, S-4, S- 5, S-7, S-8 and S-10 at 1150°C were found to be of good quality. Key words: Linear shrinkage; Bulk density; Water absorption; MOR; Red clay; Black clay. DOI: 10.3329/bjsir.v45i4.7386 Bangladesh J. Sci. Ind. Res. 45(4), 387-392, 2010

Properties of Clay Ceramic Incorporated with Red Mud

2014 ◽  
Vol 798-799 ◽  
pp. 509-513 ◽  
Author(s):  
Michelle Pereira Babisk ◽  
Thalissa Pizetta Altoé ◽  
Henrique Junio de Oliveira Lopes ◽  
Ulisses Soares do Prado ◽  
Monica Castoldi Borlini Gadioli ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Water Absorption ◽  
Red Mud ◽  
Raw Materials ◽  
Linear Shrinkage ◽  
Insoluble Residue ◽  
Technological Properties ◽  
Calcium Aluminates ◽  
Clay Ceramics ◽  
Related Compounds

The red mud is a well known insoluble residue generated in the Bayer process to benefit bauxite ores. This residue is composed of ceramic related compounds such as iron oxide, sodium aluminum silicates, carbonates, calcium aluminates and titanium dioxide. The incorporation of industrial residues in clay ceramics has been extensively investigated, not only as an environmentally correct solution but also as an economic way to save raw materials. Therefore, the present work evaluated the properties of clay ceramics incorporated with up to 40 wt% of red mud. Clay bodies with different percentages of red mud were press-molded and fired at 750, 950 and 1050°C. The evaluated technological properties were linear shrinkage, water absorption and mechanical strength. Sensible changes in such properties were found with red mud addition. In particular, the ceramic fired at 1050°C displayed favorable water absorption with red mud incorporation.

scholarly journals Eco-friendly use of eggshell powder as a bio-filler and flux material to enhance technological properties of fired clay bricks

10.30544/628 ◽  
2021 ◽  
Author(s):  
Blasius Ngayakamo ◽  
Assia Mahamat Aboubakar ◽  
Charles Gbetoglo Komadja ◽  
Abdulhakeem Bello ◽  
Azikiwe Peter Onwualu
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Bulk Density ◽  
Clay Soil ◽  
Raw Materials ◽  
Technological Properties ◽  
Casting Method ◽  
Alternative Source ◽  
Clay Bricks ◽  
Eggshell Waste

In this work, an experimental investigation on the use of eggshell powder from waste eggshells as an alternative source of bio-filler and flux to enhance the technological properties of fired clay bricks were carried out. Four different batch compositions were formed with eggshell powder as a bio-filler and flux replacing clay-soil up to 15 wt.%. The clay bricks were prepared by the casting method and were fired at 800, 900, and 1000 °C at the heating rate of 8 °C/min for 120 minutes. The raw materials and produced fired clay bricks were characterized by SEM/EDS, XRF, and XRD, respectively. Besides, technological properties of fired clay bricks (eg. water absorption, apparent porosity, bulk density, and compressive strength) were also determined. The results showed that adding 15 wt.% of eggshell powder as a bio-filler and flux yielded a compressive strength of 4.8 MPa, the bulk density of 2.1 g/cm3, and a lower water absorption value of 11.1% at the firing temperature of 1000 °C. Consequently, the use of eggshell as a bio-filler and flux to enhance the technological properties of fired clay bricks is promising and can be considered as an effective alternative method to reduce environmental concerns caused by inappropriate discarding and landfill construction to dispose of eggshell waste.

scholarly journals Olive Stone Ash as Secondary Raw Material for Fired Clay Bricks

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
D. Eliche-Quesada ◽  
M. A. Felipe-Sesé ◽  
A. Infantes-Molina
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Bulk Density ◽  
Raw Materials ◽  
Linear Shrinkage ◽  
Raw Material ◽  
Engineering Properties ◽  
Clay Bricks ◽  
Olive Stone ◽  
Secondary Raw Material

This work evaluates the effect of incorporation of olive stone ash, as secondary raw material, on the properties of fired clay bricks. To this end, three compositions containing 10, 20, and 30 wt% olive stone ash in a mixture of clays (30 wt% red, 30 wt% yellow, and 40 wt% black clay) from Spain were prepared. The raw materials, clay and olive stone ash, were characterized by means of XRD, XRF, SEM-EDS, and TG-TDA analysis. The engineering properties of the press molded specimens fired at 900°C (4 h) such as linear shrinkage, bulk density, apparent porosity, water absorption, and compressive strength were evaluated. The results indicated that the incorporation of 10 wt% of olive stone ash produced bricks with suitable technological properties, with values of compressive strength of 41.9 MPa but with a reduced bulk density, by almost 4%. By contrast, the incorporation of 20 wt% and 30 wt% sharply increased the water absorption as a consequence of the large amount of open porosity and low mechanical strength presented by these formulations, which do not meet the standards for their use as face bricks. The bricks do not present environmental problems according to the leaching test.

scholarly journals Characteristics of Kaolinitic Raw Materials from the Lokoundje River (Kribi, Cameroon) for Ceramic Applications

2021 ◽  
Vol 11 (13) ◽  
pp. 6118
Author(s):  
Paul-Désiré Ndjigui ◽  
Jean Aimé Mbey ◽  
Soureiyatou Fadil-Djenabou ◽  
Vincent Laurent Onana ◽  
Elie Constantin Bayiga ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Water Absorption ◽  
Bulk Density ◽  
Mineral Assemblage ◽  
Raw Materials ◽  
Thermal Characteristics ◽  
Linear Shrinkage ◽  
Physicomechanical Properties ◽  
Geochemical Data ◽  
Physical Chemical

Eight kaolinitic materials from the Lokoundje River at Kribi were sampled and investigated for their physical, chemical, mineralogical and thermal characteristics in order to evaluate their potential suitability as raw materials in ceramics. The Lokoundje kaolinitic materials are clayey to silty clayey and are predominantly composed of kaolinite and quartz. The alkali (Na2O + K2O) content ranges between 1 and 2.5 wt.%; these low values do not favor vitrification of the ceramics but may be improved through flux amendment. The presence of goethite in some samples limits their utilization in white ceramics. The minerals content, color, metallic sound, cohesion, linear shrinkage, flexural strength, bulk density, water absorption and microstructure were determined. The XRD data reveal that kaolinite and goethite were transformed, respectively, into mullite and hematite. The colors of the fired products are characteristic of their mineral assemblage. The metallic sound is indicative of low vitrification which is confirmed by the presence of cracks due to low flux contents. The cohesion is good to very good, due to the abundance of kaolinite. The physicomechanical properties increase with temperature as well as densification. The geochemical data show that the Lokoundje alluvial clays are suitable for the manufacture of white stoneware tiles.

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.

scholarly journals Incorporation of sugarcane bagasse ash waste as an alternative raw material for red ceramic

Cerâmica ◽  
2013 ◽  
Vol 59 (351) ◽  
pp. 473-480 ◽  
Author(s):  
K. C. P. Faria ◽  
J. N. F. Holanda
Keyword(s):  
Sugarcane Bagasse ◽  
Raw Materials ◽  
Phase Evolution ◽  
Linear Shrinkage ◽  
Raw Material ◽  
Partial Replacement ◽  
Clay Material ◽  
Natural Clay ◽  
Materials Used ◽  
Sugarcane Industry

The sugarcane industry generates huge amounts of sugarcane bagasse ashes (SCBA). This work investigates the incorporation of a SCBA waste as an alternative raw material into a clay body, replacing natural clay material by up to 20 wt.%. Clay ceramic pieces were produced by uniaxial pressing and fired at temperatures varying from 700 to 1100 ºC. The technological properties of the clay ceramic pieces (linear shrinkage, apparent density, water absorption, and tensile strength) as function of the firing temperature and waste addition are investigated. The phase evolution during firing was followed by X-ray diffraction. The results showed that the SCBA waste could be incorporated into red ceramics (bricks and roofing tiles) in partial replacement for natural clay material. These results confirm the feasibility of valorisation of SCBA waste to produce red ceramic. This use of SCBA can also contribute greatly to reducing the environmental problems of the sugarcane industry, and also save the sources of natural raw materials used in the ceramic industry.

Viability of Some Kano-Nigerian Clays for Refractory Applications

2013 ◽  
Vol 315 ◽  
pp. 477-481 ◽  
Author(s):  
I.A. Rafukka ◽  
B. Onyekpe ◽  
Y. Tijjani
Keyword(s):  
Compressive Strength ◽  
Physical Properties ◽  
Bulk Density ◽  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Linear Shrinkage ◽  
Chemical Compositions ◽  
Shock Resistance ◽  
Materials Used ◽  
Refractory Bricks

The physical properties of some materials used by local foundries were investigated with a view to assessing their suitability for use as low heat duty refractory bricks. The samples were collected from Malamai village, Gezawa Local Government, Kano state; they are Gezawa clay and Burji (Clay). The samples were crushed, ground, sieved and the chemical compositions were determined. The clay samples were treated separately as well as blended with Gezawa clay in different proportions and molded in to bricks. The bricks were dried and fired to 1100. Test for refractoriness, thermal shock resistance, linear shrinkage; bulk density, porosity and compressive strength were carried out on each of the specimen. Burji blended with 50% to 90% Gezawa clay gave improved thermal shock resistance with a refractoriness of 1300 and hence could be used for non ferrous melting cupolas.

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