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

Araújo, Narcísio Cabral de; Ramos, Alana Pereira; Queiroz, Abílio José Procópio; Santos, R. C. dos; Buriti, Josué da Silva

doi:10.18378/rvads.v10i2.3427

Cited by 8 publications

(3 citation statements)

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“…The clay fraction (less than 2 μm) corresponds to the fraction that confers the plasticity required to conform to the products. In the clay sample, this value is high and important in the resistance of the final material after firing [1,12,13,20].…”

Section: Methodsmentioning

confidence: 99%

Characterization of clay deposit in the central region of Piauí for use in the ceramic industry

2020

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The clay ceramics industry comprises materials used in construction (bricks, tiles, and expanded clay, among others), is of great importance for Brazilian economic development, and the industry is seeking new sources of raw material, mainly clay. The present work aims to characterize a clay deposit located in the central region of the state of Piauí, to make feasible its use as ceramic raw material, seeking to boost the clay ceramics industry. The chemical composition, the crystalline phases, and the plasticity of the clay were analyzed. Specimens were prepared by uniaxial pressing, dried in an oven at 110 °C, and then heated to 900 °C, 1000 °C, and 1100 °C. Bending strength, apparent porosity, linear shrinkage, water absorption, and mineralogical, macrostructural, and microstructural analyses were determined. The results showed an improvement in the indices with the increase in the firing temperature and that the samples showed a reddish coloration due to the presence of iron, as well as quartz and kaolinite. Thus, the clay deposit has the potential to become raw material for the clay ceramics industry in the state of Piauí.

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Section: Methodsmentioning

confidence: 99%

Characterization of clay deposit in the central region of Piauí for use in the ceramic industry

2020

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“…A fração argila está relacionada, sobretudo, aos minerais argilosos, que são os responsáveis pelo desenvolvimento da plasticidade do sistema argila e água [23]. A amostra A é composta de 16,56% de argila e 52,73% de silte, com diâmetro médio de 14,47 μm, já a amostra B apresenta fração volumétrica de 29,50 % de argila e 67,48% de silte, diâmetro médio de 6,01 μm.…”

Section: Tabela 1: Composições Químicas Das Matérias-primas (% Em Peso)unclassified

Caracterização tecnológica de novos depósitos de argilas da região sul do Amapá visando aplicações na indústria Cerâmica

Silva¹,

Luna²,

Chaves³

et al. 2017

Matéria (Rio J.)

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RESUMOO presente trabalho teve como objetivo caracterizar dois novos depósitos de argilas (A e B) provenientes da região sul do estado do Amapá, visando estabelecer seus usos adequados como matérias-primas cerâmicas e promover o potencial da indústria cerâmica da região. Foram confeccionados corpos de prova por prensagem uniaxial, sendo aplicada uma prensagem em duas etapas de 13,4 MPa e 20 MPa, respectivamente. As amostras foram secas em uma estufa a 110ºC, e submetidas à queima em 850, 1000 e 1200ºC. Foram determinadas retração linear de queima, absorção de água, porosidade aparente e módulo de ruptura à flexão, bem como a evolução mineralógica após queima. Finalizando, avaliou-se a microestrutura das argilas sinterizadas a 1200ºC em um microscópio eletrônico de varredura. Os resultados evidenciaram que a argila A apresentou o melhor desempenho mecânico, tendo uma coloração vermelha e, portanto, tendo potencial para a indústria de cerâmica vermelha. Por outro lado, a argila B apresentou cor clara, devido ao baixo teor de óxido de ferro e, sendo assim, tendo potencial como matéria-prima refratária. No geral, uma argila é adequada para uso em cerâmica branca e outra para cerâmica vermelha.Palavras-chave: Depósitos de argilas, caracterização, propriedades tecnológicas, novos depósitos, aplicação em cerâmica. ABSTRACTThe objective of the present work was to characterize two new Clay deposits (A and B) from the south region of Amapá state, aiming to establish their adequate uses as ceramic raw materials and to promote the potential of the ceramic industry in the region. Were prepared specimens by uniaxial pressing, being applied a two phase pressing of 13,4 MPa and 20 MPa, respectively. The samples were dried in an oven at 110ºC, and submitted to burning at 850, 1000 and 1200ºC. Were determined linear firing shrinkage, water absorption, apparent porosity and modulus of flexural modulus of rupture, as well as mineralogical evolution after burning. Finishing, the microstructure of the sintered clay at 1200ºC was evaluated in a scanning electron microscope. The results showed that the clay A presented a better mechanical development, having a red coloration and, therefore, potential to the red ceramic industry. On the other hand, the clay B presented a light color, due to a low content of iron oxide and, therefore, having potential as refractory raw material. In general, one clay is suitable to be used in white ceramic and the other in red ceramic.

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“…Porém é muito rico em matéria orgânica e em macro e micronutrientes [7]. A principal matéria-prima utilizada na indústria de cerâmica é a argila, dependendo de sua natureza tem sua granulometria fina e abrange uma grande variedade de substanciais minerais [8].Visando alcançar o objetivo macro deste trabalho efetuou-se a caracterização as matérias primas, a argila e o lodo (ETE) por meio de analises químicas e difração de raio-X, preparar os corpos-de-prova com teores de 0, 5, 7 e 10% de peso do lodo agregado a massa cerâmica (argila) e realizar ensaios físicos e mecânicos dos corpos-de-prova com diferentes teores [9].…”

Section: Introductionunclassified

Using the effluent treatment station sludge in the manufacture of red ceramics at the Iranduba/AM ceramic pole

Moraes¹,

Souza²

2019

ITEGAM- Journal of Engineering and Technology for Industrial Applications (ITEGAM-JETIA)

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In the search for solutions capable of minimizing the environmental impacts from wastewater treatment plants of the industrial activities related to the final destination of waste generated (SLUDGE), the present work has the purpose of presenting the results of the incorporation of sludge from a treatment plant industrial and domestic effluents in the clay for the manufacture of red ceramics. The treatment plant sludge and the clay underwent chemical and mineralogical characterization through granulometric distribution, X-ray fluorescence analysis and X-ray diffraction. The samples were homogenized in the proportions of 0%, 5%, 7% and 10% by weight of the sludge in the clay, pressed at 25 MPa, and the characterization was carried out again by X-ray diffraction, proof and then burned at 900ºC. The physical and mechanical properties analyzed were: fire loss, linear retraction, water absorption, apparent specific mass, apparent porosity, Rupture to Bending stress and humidity. The results presented show similarity to the one recommended by ABNT and the base (0% of sludge). Although the samples of 10% by weight of the sludge in relation to the clay show a variation in the chemical composition due to their high organic matter content, it was possible to observe that both had as main compound SiO2, Al2O3 and Fe2O3. The physical and mechanical analysis corresponded to with a maximum percentage of 10% by weight of the sludge, reaching the objectives of the work, making feasible the aggregation of the waste generated by the industrial and domestic effluent treatment plant.

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

Cited by 8 publications

References 0 publications

Characterization of clay deposit in the central region of Piauí for use in the ceramic industry

Characterization of clay deposit in the central region of Piauí for use in the ceramic industry

Caracterização tecnológica de novos depósitos de argilas da região sul do Amapá visando aplicações na indústria Cerâmica

Using the effluent treatment station sludge in the manufacture of red ceramics at the Iranduba/AM ceramic pole

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