Recycled Material
Mostrando 13-24 de 129 artigos, teses e dissertações.
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13. Recycled gypsum block: development and performance
Resumo O resíduo de gesso ainda é considerado um grave problema econômico e ambiental. Seu volume é alto e sua destinação é muitas vezes inadequada. Visando fornecer uma alternativa mitigatória, esta pesquisa pretende desenvolver blocos que incorporem o resíduo industrial de gesso a partir da logística reversa. Para isso foi realizado um processo d
Ambient. constr.. Publicado em: 2019-04
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14. Production of components with plaster residue and sodium citrate: physical, mechanical, rheological analysis
Resumo A indústria da construção civil, grande influenciadora no desenvolvimento econômico e social do país, é responsável por um grande consumo de matéria prima e produção de resíduos. O gesso, em especial, apresenta crescimento expressivo, sobretudo na região Nordeste, devido ao Pólo Gesseiro do Araripe. Considerando os graves problemas de seu
Ambient. constr.. Publicado em: 2019-04
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15. Effect of RAP content on flexural behavior and fracture toughness of flexible pavement
Abstract The use of recycled Reclaimed Asphalt Pavement (RAP) material into flexible pavement contributes to sustainable development with environmental and economic benefits. In the present work, Semi-Circular Bending (SCB) specimen has been adopted to study the flexural strength and mode-I fracture toughness of flexible pavement with and without RAP. Two di
Lat. Am. j. solids struct.. Publicado em: 21/03/2019
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16. Avaliação das propriedades físicas, químicas e mineralógicas da fração fina (<150 µm) do agregado reciclado de RCD
Resumo Fatores como o alto consumo de recursos naturais e os elevados volumes de resíduos produzidos pela indústria da construção civil alertam sobre a importância de reutilizar e reciclar os materiais. Assim, este trabalho objetivou determinar e avaliar as características físicas, químicas e mineralógicas dos finos do agregado reciclado (FAR), comp
Cerâmica. Publicado em: 2019-01
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17. First evaluation of semidirect recycling methods for the reclamation of cemented carbides based on a literature survey
ABSTRACT At the moment the industrially applied techniques for cemented carbide reclamation feature several deficiencies. Depending on the process route, obstacles consist in high energy and chemical consumption (indirect recycling methods) or a deterioration of the recycled product in comparison with the primary material (direct recycling approach). Therefo
Matéria (Rio J.). Publicado em: 19/07/2018
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18. Espuma ultraliviana de Mg a partir de viruta reciclada
ABSTRACT Hundreds of people worldwide die or are severely maimed in collisions during traffic accidents, due to the energy transmitted to the passengers on impact. A dissipation of said energy is necessary to minimize it's effects, which can be achieved through absorbers. In recent years, metallic foams have started to be considered as energy absorbers. Meta
Matéria (Rio J.). Publicado em: 19/07/2018
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19. Preparation and characterization of composites from plastic waste and sugar cane fiber
Abstract This study presents the preparation and characterization of composite materials using Plastic Waste from Hydrapulper (PWH) from paper industries extruded with sugar cane fiber residues from ethanol industries. The factorial design showed that composite material with 40% of sugar cane fiber, pressed with 5 ton was the optimized condition. The main f
Polímeros. Publicado em: 21/05/2018
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20. EFFECT OF NANOSILICA ON THERMAL, FLAMMABILITY, AND MORPHOLOGICAL PROPERTIES OF WF/RPS-BASED NANOCOMPOSITES
ABSTRACT The present study considered the effect of nanosilica levels on the thermal, flammability, and morphological properties of nanocomposites made of wood flour and recycled polystyrene. To do so, the recycled polystyrene (50%), wood flour (50%), nanosilica (four levels of nanosilica; 0, 2, 4 and 6 phc (parts per hundred compounds)), and maleic anhydrid
CERNE. Publicado em: 2018-03
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21. Operational Measurements for Infrared Camera Characterization
ABSTRACT: The detection, location, identification and recognition are very important activities for the air forces. Imaging systems are tools used for those functions, so it is mandatory to characterize those systems to really know their actual operational limits. This paper presents a set of measurements for spectral, radiometric and spatial camera characte
J. Aerosp. Technol. Manag.. Publicado em: 2017-12
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22. Polypropylene Composites Manufactured from Recycled Carbon Fibers from Aeronautic Materials Waste
Carbon fiber composites are used in several industries such as, aerospace, automotive, civil engineering, sports goods and technical applications due to its low-weight, strength and stiffness. However, the technology of recycling of these thermosetting polymer composites remains an engineering challenge because of their cross-linked structures that impede th
Mat. Res.. Publicado em: 23/10/2017
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23. Immobilization of ammonia-oxidizing bacteria by polyvinyl alcohol and sodium alginate
Abstract Ammonia-oxidizing bacteria were immobilized by polyvinyl alcohol (PVA) and sodium alginate. The immobilization conditions and ammonia oxidation ability of the immobilized bacteria were investigated. The following immobilization conditions were observed to be optimal: PVA, 12%; sodium alginate, 1.1%; calcium chloride, 1.0%; inoculum concentration, 1.
Braz. J. Microbiol.. Publicado em: 2017-07
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24. 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