Substituição de areia de quartzo por finos de gnaisse em massa cerâmica para telhas: teste industrial

Vieira, Carlos Maurício Fontes; Monteiro, Sérgio Neves; Barreto, Cristiana; Carvalho, E. A. de; Peiter, Carlos César

doi:10.1590/s0366-69132008000400016

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…Based on the atomic weight, the elements are: Si (56.32%), Al (24.23%), Fe (11.40%), K (5.43%) and Mg (0, 56%), S (1.03%) and Ca (1.03%). It was observed that in both characterized specimens there is a significant presence of pores, defects, plane irregularities and a significant amount of quartz, characteristics of the microstructures of traditional ceramics (Vieira et al, 2008).…”

Section: Resultsmentioning

confidence: 92%

“…There is a significant amount of quartz particles, which is the main type of impurity present in clay, being a non-plastic raw material and inert in the sintering process (Macasaet, 2020;Norhayati Ayob, Mohamad, & Arshad, 2021;Vieira, Monteiro, Barreto, Carvalho, & Peiter, 2008).…”

Section: Resultsmentioning

confidence: 99%

“…Research, Society and Development, v. 10, n. 9, e6910917755, 2021 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v10i9.17755 significant amount of water in its composition (Hariz, Hariz, & The, 2021;Salomão & Oliveira, 2020;Vieira et al, 2008).…”

Section: Resultsmentioning

confidence: 99%

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Microstructural characterization of ceramic artifacts made using the raku technique

Machado

Ranieri

Ribeiro

et al. 2021

RSD

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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.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

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Microstructural characterization of ceramic artifacts made using the raku technique

Machado

Ranieri

Ribeiro

et al. 2021

RSD

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“…Para o caso da rocha calcária, Silva (2006) realizou teste de absorção de água em jazidas de calcário calcítico do estado do Paraná, situado na região Sul do Brasil, e encontrou valores de 0,14%, bem abaixo dos valores encontrados no presente trabalho descritos no Quadro 1. Dados de ensaios de absorção obtidos para outras rochas indicaram absorção de água entre 0,13% e 1,45%, conforme trabalhos de Vieira et al (2008), Barbosa (2008), Sandrini e Caranassios (2007), Pinho (2003), Altoé (2013) e Barison (1997).…”

Section: -Ensaio De Absorção De áGuaunclassified

Caracterização geotécnica da rocha calcária de João Pessoa/PB

Sousa¹,

Soares²

2015

geotecnia

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RESUMO -A rocha calcária é abundante no subsolo da região de João Pessoa, capital do Estado da Paraíba, favorecendo o uso como agregado, devido sua extração econômica e baixos custos de transporte. Entretanto, é uma rocha sedimentar, constituída de material solúvel quando exposto à presença de água. Este trabalho propõe caracterizar a rocha calcária daquela região, verificando a sua aplicação como agregado de concreto. Foram executados ensaios de densidade real dos grãos; de massa específica aparente seca; de absorção de água; testes de abrasão, de resistência à compressão simples e análise física, em situação seca e saturada; de microscopia eletrônica; de difração de raios-X; e ensaios de campo. Os resultados indicaram que ela é composta de carbonato de cálcio (CaCO 3 ), com alto índice de absorção de água e baixa resistência à abrasão e à compressão simples, concluindo que o seu uso deve ser restrito a determinados tipos de construções. SYNOPSIS -Limestone is abundant in the subsoil of the region of João Pessoa, capital of the State of Paraíba, favouring its use as aggregate, due to economic extraction and low transport costs. However, being a sedimentary rock, it is soluble when exposed to the presence of water. This paper proposes to characterize the limestone from that region, in order to assess its application as aggregate for concrete. The following tests were performed: grain real density; dry bulk density; water absorption; abrasion, compressive strength and physical analyses, in dry and saturated conditions; electron microscopy; X-ray diffraction; and field trials. The results indicated that it is composed of calcium carbonate (CaCO 3 ), with high water absorption rate and low abrasion and compressive resistance, concluding that its use should be restricted to certain types of constructions.

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Effect of the Addition of Porcelain Tile Polishing Residue in Ceramic Masses for Sanitary Ware

Silva,

Neves,

Nóbrega

et al. 2023

Mat. Res.

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Substituição de areia de quartzo por finos de gnaisse em massa cerâmica para telhas: teste industrial

Abstract: The effect of replacing sand for gnaisse sawing waste into a red ceramic body used for roofing tile fabrication was evaluated.

Cited by 5 publications

References 7 publications

Microstructural characterization of ceramic artifacts made using the raku technique

Microstructural characterization of ceramic artifacts made using the raku technique

Caracterização geotécnica da rocha calcária de João Pessoa/PB

Effect of the Addition of Porcelain Tile Polishing Residue in Ceramic Masses for Sanitary Ware

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