Bricks
Mostrando 1-12 de 100 artigos, teses e dissertações.
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1. Thermal characterization of soil-cement bricks using mining tailings
Abstract Soil-cement bricks are earth construction materials that have been gaining prominence due to their environmental advantages. The Brazilian Technical Standard NBR 8491 establishes physical and mechanical procedures to characterize these bricks. However, the thermal characterization is an important assessment, since it is related to the building’s t
REM - International Engineering Journal. Publicado em: 2022
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2. Study for the incorporation of wood ash in soil-cement brick
Abstract This study aimed to produce soil-cement brick with wood ash incorporation coming from the textile industry. The wood ash was a partial substitute for soil and cement in the manufacture of bricks. 7 formulations were made with different proportions of substitution: 10%, 20%, and 30%. It was noticed that the substitution of cement by wood ash in 10% r
Cerâmica. Publicado em: 2022
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3. Maximization of the use of casting sand residue in the production of fired ceramic bricks
Abstract In this study, a red ceramic was developed with the addition of sand residue from deburring and finishing processing of cast iron molds, replacing a variable fraction of the clay. The formulated masses were shaped by pressing and firing at different temperatures (850, 900 and 1000 ºC) at a heating rate of 180 ºC/h and 2-hour level. The bodies were
REM, Int. Eng. J.. Publicado em: 2020-09
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4. Mapeamento do processo produtivo e construtivo de alvenaria de tijolo de solo-cimento para habitação de interesse social
RESUMO O assunto sustentabilidade vem crescendo cada vez mais, junto com a necessidade de redução de emissão de gás carbônico por todo o mundo. De modo que projetos, técnicas, e materiais que não prejudiquem o meio ambiente estão ganhando espaço nas pesquisas e nos mercados. Esse trabalho tem como objetivo principal um estudo de caso do processo pro
Matéria (Rio J.). Publicado em: 25/11/2019
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5. Mineralogy and preliminary assessment of the potential uses of alluvial clays from Batouri (Eastern-Cameroon)
Resumo Este estudo teve como objetivo avaliar os usos potenciais de materiais argilosos aluviais de Batouri. Suas características mineralógicas, químicas e algumas físico-mecânicas são apresentadas, bem como algumas características de tijolos queimados em 900, 950, 1000, 1050 e 1100 °C. As matérias-primas consistiram de caulinita, quartzo, feldspato
Cerâmica. Publicado em: 15/08/2019
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6. Previous hepatitis E virus infection, cirrhosis and insulin resistance in patients with chronic hepatitis C
ABSTRACT Background: Hepatitis E virus (HEV) infection in patients with pre-existing liver disease has shown high morbidity and lethality. The consequences of HEV superinfection in patients with chronic hepatitis C virus (HCV) infection are not fully understood. This study aimed to evaluate the association between the presence of anti-HEV antibodies, liver
Braz J Infect Dis. Publicado em: 20/05/2019
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7. Utilização da termografia infravermelha para detecção de focos de umidade em paredes internas de edificações
Resumo O uso da termografia infravermelha tem se tornado alvo de estudos em várias áreas dentro da construção civil. Contudo, as pesquisas de detecção de presença de umidade em edificações ainda estão em desenvolvimento. O objetivo principal deste artigofoi estudar a viabilidadedo uso da termografia para a detecção de infiltrações devido a caus
Ambient. constr.. Publicado em: 2019-03
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8. MANUFACTURE OF SOIL-CEMENT BRICKS WITH THE ADDITION OF SUGARCANE BAGASSE ASH
ABSTRACT The objective of this study is to evaluate the effect of sugarcane bagasse ash on the compressive strength and water absorption index of soil-cement bricks. The ash was sieved without chemical and/or physical treatment to reflect the use of this material in real manufacturing processes. The addition of natural ash decreased the quality of the bricks
Eng. Agríc.. Publicado em: 2019-02
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9. Size Effects on Fracture Parameters of High Alumina Refractories
The randomness of phase compositions and their distribution as well as the micro cracks and pores in refractories result in the dependence of mechanical properties on the sample size. In this work, the size effects on fracture parameters including bending strength, elastic modulus and fracture toughness of high alumina bricks were investigated by testing sam
Mat. Res.. Publicado em: 10/07/2018
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10. Seroprevalence of hepatitis E virus in chronic hepatitis C in Brazil
ABSTRACT Background and aims: Hepatitis E virus infection in patients with underlying chronic liver disease is associated with liver decompensation and increased lethality. The seroprevalence of hepatitis E virus in patients with chronic hepatitis C in Brazil is unknown. This study aims to estimate the seroprevalence of hepatitis E virus in patients with ch
Braz J Infect Dis. Publicado em: 2018-03
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11. Evaluation of recycled MgO-C bricks and dead-burned dolomite fines in setting slag foaming in the electric arc furnace
Abstract Production cost reduction for the Electric Arc Furnace (EAF) technology is strongly dependent on the efficiency of the electrical energy being introduced into the metal bath. Besides EAF technology, the slag foaming process is currently applied to some other equipment for steel production aiming to save energy, productivity improvements, enhance the
REM, Int. Eng. J.. Publicado em: 2018-03
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12. Thermal resistance and conductivity of recycled construction and demolition waste (RCDW) concrete blocks
Abstract In Brazil, studies to reuse construction and demolition waste are a special issue because a large amount of this material has been delivered to the public landfills and in illegal places. Some researchers have suggested reusing this material in building elements, such as bricks or blocks. It is possible to find a lot of researches in physical/mechan
REM, Int. Eng. J.. Publicado em: 2017-06