Characterization of the City of Red Clay Apodi-RN

2012 ◽  
Vol 727-728 ◽  
pp. 837-843 ◽  
Author(s):  
Flanelson M. Monteiro ◽  
Tércio G. Machado ◽  
José Sousa ◽  
Eiji Harima ◽  
Samara M. Valcacer ◽  
...  
Keyword(s):  
Ceramic Industry ◽  
Rio Grande ◽  
Linear Shrinkage ◽  
Economic Importance ◽  
Raw Material ◽  
Red Clay ◽  
Great Economic Importance ◽  
The City

Ceramic products made from red clay to move the economy of Rio Grande do Norte. Among the most common ones are outstanding bricks, tiles and slabs in different sizes and shapes. In perspective to seek products with good quality in the ceramic industry, the characterization of the raw material is essential for obtaining an excite end product. The municipality of Apodi located in the Upper West Rio Grande do Norte has the ceramic industry as a sector of great economic importance in the site. However the absence of technology for characterization of the clays found in the region is the major problem for local entrepreneurs. The objective this study is to characterize the red clay one of the ceramics used by the municipality of Apodi-RN. The procedure will be done through the testing of Plasticity, Liquidity, linear shrinkage, absorption water, porosity, XRD and EDX.

scholarly journals Main parameters influencing the plastic behavior of clays used for traditional ceramics production

2021 ◽  
Author(s):  
Hicham El Boudour El Idrissi
Keyword(s):  
Mineral Composition ◽  
Ceramic Industry ◽  
Raw Material ◽  
Plastic Behavior ◽  
Different Types ◽  
The Impact ◽  
The City ◽  
Traditional Ceramics ◽  
Clayey Materials ◽  
Clay Mineral Composition

This paper investigates the main parameters influencing the plastic behavior of clays used for traditional ceramics production. For this, twenty-six clayey pastes were selected from twelve traditional ceramic plants around the city of Marrakech (Morocco). According to the lithology, six different types of materials are used as raw material in the ceramic industry of this region. Emphasis is placed on the impact of the characteristics of these clayey materials upon the plastic behavior of these clays. The pastes were characterized through their consistency using the Atterberg limits. It has been concluded that the gain size, the mineralogical and the clay mineral composition and content, the effect of diagenesis and the presence of talc-pyrophyllite association play the most important role in the control of the plasticity behavior.

scholarly journals CONHECENDO A PESCA ARTESANAL EM TRAMANDAÍ E IMBÉ – RS: DISTRIBUIÇÃO ESPACIAL E DESAFIOS

2017 ◽  
Vol 39 (2) ◽  
pp. 341
Author(s):  
Abraão Martins Terceiro
Keyword(s):  
Spatial Distribution ◽  
Rio Grande ◽  
Economic Importance ◽  
The State ◽  
Artisanal Fisheries ◽  
Rio Grande Do Sul ◽  
Popular Knowledge

The work deals with the theme artisanal fisheries and has as main objective, the characterization of the activity in the municipalities of Tramandaí and Imbé, located in the State of Rio Grande do Sul, the spatial distribution and the challenges to occur fisheries in this region. The research is justified by the large number of fishermen in the study area and the economic importance of the activity, mapping through popular knowledge areas of greatest value for fishing, the main existing species and the main features and instruments used in fish capture.

scholarly journals The use of submerged-arc welding flux slag as raw material for the fabrication of multiple-use mortars and bricks

2009 ◽  
Vol 14 (3) ◽  
pp. 257-262 ◽  
Author(s):  
Caroline Espinosa Viana ◽  
Dylmar Penteado Dias ◽  
José Nilson França de Holanda ◽  
Ronaldo Pinheiro da Rocha Paranhos
Keyword(s):  
Arc Welding ◽  
Linear Shrinkage ◽  
Submerged Arc Welding ◽  
Raw Material ◽  
Fine Aggregate ◽  
Multiple Use ◽  
Red Clay ◽  
Natural Sand ◽  
Welding Flux ◽  
Submerged Arc

This work has as objective to analyze the recycling possible uses of the slag of welding flux (SWF) in the civil construction. It was searched the liability of SWF as substitute of sand in the production of multiple-use mortars and clay for the production of ceramic bricks. SWF has origin in the submerged-arc welding (SAW), and have been used slags of the acid, neutral and basic types, according to its neutrality. Mortars have been made containing the three types of SWF and in addition a reference mortar made with sand. Physical and mineralogical characteristics of each SWF were studied, and the physical properties (consistency and density) and mechanical properties (compressive and tensile strengths) of the mortars were analyzed. Ceramic pieces have been made containing kaolinitic sedimentary clay up to 10 wt. % of SWF. The pieces were prepared by uniaxial pressing and fired at 950ºC. The following properties after firing were determined: linear shrinkage, water absorption, apparent porosity, apparent density, and flexural strength. The results show that for multiple-use mortars, SWF reached excellent results, being an overall substitute for sand as fine aggregate. For ceramic bricks, SWF can also be used as partial substitute for red clay. Both applications of SWF significantly contributes for the reduction of the ambient impact: on one hand, reducing the extraction of natural sand and clay, on other hand, contributing for the reduction of the risk of ground water contamination due to the inadequate disposal of the SWF.

scholarly journals Characterization of bentonite clay from 'Greda' deposit

2011 ◽  
Vol 5 (2) ◽  
pp. 97-101 ◽  
Author(s):  
Nadezda Stankovic ◽  
Mihovil Logar ◽  
Jelena Lukovic ◽  
Jelena Pantic ◽  
Miljana Miljevic ◽  
...  
Keyword(s):  
Ceramic Industry ◽  
Bentonite Clay ◽  
Nitrogen Adsorption ◽  
Raw Material ◽  
X Ray Diffraction ◽  
High Quality ◽  
X Ray ◽  
High Silica ◽  
Representative Samples

Based on mineralogical and technological investigations of the deposit 'Greda' important characteristics of bentonite clay were determined. Representative samples of the deposit were characterized with X-ray diffraction, low-temperature nitrogen adsorption, chemical analysis, differential thermal analysis and scanning electron microscopy. It was determined that the main mineral is montmorillonite and in subordinate quantities kaolinite, quartz and pyrite. The chemical composition generally shows high silica and alumina contents in all samples and small quantities of Fe3+, Ca2+ and Mg2+ cations. Based on technological and mineralogical research, bentonite from this deposit is a high-quality raw material for use in the ceramic industry.

Gelatinization Technique Applied to the Processing of Porous Clay Bodies

2018 ◽  
Vol 930 ◽  
pp. 8-13
Author(s):  
Ana Gabriele Storion ◽  
Maria Gabriela Nogueira Campos ◽  
Neide Aparecida Mariano ◽  
Walter Aparecido Mariano ◽  
Sylma Carvalho Maestrelli
Keyword(s):  
Initial Temperature ◽  
Porous Ceramic ◽  
Clay Content ◽  
Linear Shrinkage ◽  
Solid Content ◽  
Raw Material ◽  
Processing Route ◽  
Mechanical Resistance ◽  
Cold Forming

Conventional processes for manufacturing porous ceramic sometimes provide bodies with low mechanical strength in addition to the high complexity or cost. This work proposes a new porous ceramic processing route: gelatinization, using as raw material clay with low plasticity, water and gelatin. The characterization of the clay was carried out and specimens of various compositions were produced by varying clay content (40, 50, 55 and 60% of solids) and keeping the water and gelatin content constant in the formulation. After cold forming the samples were fired under various conditions: initial temperature of 300 or 600 °C; maximum firing temperature of 800, 900, 1000, 1100 or 1350 °C. After firing, it was obtained the values of the water absorption, bulk density, apparent porosity, linear shrinkage and mechanical resistance. The best results were for samples fired in temperatures lower than 1100 °C and 50% and 55 % of solid content.

Characterization of a Water Clearing Treatment Residue and Its Application as Clay Ceramic Addition

2014 ◽  
Vol 775-776 ◽  
pp. 642-647
Author(s):  
Carolina Nascimento de Oliveira ◽  
Michelle Pereira Babisk ◽  
Fernando Vernilli ◽  
Veronica Scarpini Candido ◽  
Sergio Neves Monteiro ◽  
...  
Keyword(s):  
Raw Materials ◽  
Rupture Strength ◽  
Low Cost ◽  
Treatment Plant ◽  
Linear Shrinkage ◽  
Red Clay ◽  
Steel Making ◽  
Important Residue ◽  
Clay Ceramics

The addition of industrial residues into common red clay ceramic has been, from many decades, an alternative of using other low cost raw materials and, more recently, as an environmentally correct destination for polluting substances. An important residue, known as yellow sludge, is that generated at the water clearing stage (WCS) of a treatment plant by some heavy industries such as an integrated steel making. Since this yellow sludge residue is normally disposed in ways that pollutes water bodies, the objective of the present work was to characterize a WCS yellow sludge and investigate its addition into clay ceramics. The residue was characterized by X-ray fluorescence, particle size distribution and scanning electron microscopy. The addition was carried out up to 7.5 wt% followed by firing at 800oC. The added ceramics were evaluated in terms of water absorption, linear shrinkage, dry apparent density and flexural rupture strength. It was found that the residue addition does not practically alter the ceramic technical properties.

scholarly journals Characterization of clays from the Corumbataí formation used as raw material for ceramic industry in the Santa Gertrudes district, São Paulo, Brazil

2016 ◽  
Vol 132-133 ◽  
pp. 232-242 ◽  
Author(s):  
Andrezza de Almeida Azzi ◽  
Marek Osacký ◽  
Peter Uhlík ◽  
Mária Čaplovičová ◽  
Antenor Zanardo ◽  
...  
Keyword(s):  
Ceramic Industry ◽  
Sao Paulo ◽  
Raw Material ◽  
São Paulo

scholarly journals Physicochemical and mineralogical properties of clays used in ceramic industry at North East Colombia

DYNA ◽  
2019 ◽  
Vol 86 (209) ◽  
pp. 97-103 ◽  
Author(s):  
Diana Alexandra Torres Sanchez ◽  
Ricardo León Mora Basto ◽  
Amanda Lucía Chaparro García ◽  
Jorge Sánchez Molina
Keyword(s):  
Ceramic Industry ◽  
Absorption Capacity ◽  
Raw Material ◽  
Water Absorption Capacity ◽  
Technological Properties ◽  
Mineralogical Analysis ◽  
North East ◽  
Construction Products ◽  
Firing Shrinkage

AbstractGeneral properties of clays from Ceramica Murano Mine, in the municipality of El Zulia, Norte de Santander, have been investigated.  Five clay samples were collected from different mantles of the mine. All the samples were characterized using chemical and mineralogical analysis, as well as physical properties like particle size, plasticity, drying and firing shrinkage and water absorption capacity. The chemical and mineralogical results indicated that all samples contained different amount of kaolinite and quartz, followed by hematite and anatase. Low amounts of muscovite were found mainly in samples F2 and F5. These clays are suitable for use as a raw material in creating ceramic construction products, especially for the manufacture of roof tiles and bricks according to the Winkler methodology. The variations found in the characterization of the raw material influence the technological properties of the ceramic that can be obtained from the clays under study.

scholarly journals Microstructural characterization of ceramic artifacts made using the raku technique

2021 ◽  
Vol 10 (9) ◽  
pp. e6910917755
Author(s):  
Wilton Antônio Machado Junior ◽  
Maria Gabriela Araujo Ranieri ◽  
Rosinei Batista Ribeiro ◽  
Jorge Luiz Rosa ◽  
Adilson da Silva Mello
Keyword(s):  
Physical And Mechanical Properties ◽  
Microstructural Characterization ◽  
Linear Shrinkage ◽  
Plastic Behavior ◽  
Energy Dispersion Spectroscopy ◽  
X Ray ◽  
Clay Ceramics ◽  
The City ◽  
Scanning Electron

This study was carried out at the atelier “Adamas”, located in the city of Cunha, in the state of São Paulo, Brazil. The objective is to characterize the physical and mechanical properties of ceramics made using the raku technique in the Adamas atelier. As a methodology, the specimens were submitted to the following tests: Scanning Electron     Microscopy (SEM), X-ray Energy Dispersion Spectroscopy (EDS), mass loss and linear shrinkage. It was observed that the specimens were mainly composed of silicon and aluminum, which is typical of ceramics made with kaolinitic clays, possessing a plastic behavior for molding and after firing refractory. Therefore, ceramic artifacts made through the raku technique have typical chemical and physical characteristics of clay ceramics, proper adhesion of the glaze even when there are crackles originated purposely from the process, which causes the artistic artifact appropriate characteristics for use and appreciation.

Study by Weibull Statistics of Ceramic Products from Rio Grande do Norte, Brazil

2012 ◽  
Vol 727-728 ◽  
pp. 1457-1461
Author(s):  
Elcio Correia de Souza Tavares ◽  
Claudia P.T. Cruz ◽  
Uilame Umbelino Gomes
Keyword(s):  
Mechanical Strength ◽  
Ceramic Industry ◽  
Raw Materials ◽  
Rio Grande ◽  
Linear Shrinkage ◽  
Strength Test ◽  
International Standards ◽  
Weibull Statistics ◽  
Inappropriate Use

The ceramic sector is important to the economy in Rio Grande do Norte, Brazil. Overall, however, the manufacturing process is imperfect; leading to inappropriate use of raw materials, waste of energy, environmental degradation, nonconformity to the Brazilian and international standards, etc. So, its crucial improves the produced bricks. This work aims to contribute to quality control of the ceramic industry, raising the values of physical properties of their products. The main parameters that influence these values were determined by Weibull statistics. Ceramics were studied by measuring porosity, water absorption, linear shrinkage, bulk density and mechanical strength. Mechanical strength test data resulted in Weibull distributions. The Weibull statistic parameter was calculated to best evaluations of ceramic quality. The results support our initial considerations about current stands of low quality of ceramic products from Rio Grande do Norte and underline the importance of testing and improving these products.

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