Navegando por Assunto "Produtos reciclados"

Agora exibindo 1 - 2 de 2

Acesso aberto (Open Access)
A produção de pequenos objetos de madeira: um estudo de caso: a empresa "Móveis Souza"
(Universidade Federal do Pará, 2006-02) MONTEIRO, Shirley do Socorro Magalhães; ANTONAZ, Diana; http://lattes.cnpq.br/7547028254641362
This research was organized around the production of a small wooden object, so as to try to depict its biography, from a point of observation at enterprise Móveis Souza, where it is conceived and made. In achieving the production of this object cooperate the owner and his son, as well as the wife of the former who manages the family business. Object creation, which means art to the owner, as well as the specific work organizatioen constitute unique conditions which are essential to achieve the production of such object. Moreover, the circumstances in which the owner starts using wood residues, and how this decision attaches environmental quality to production, which on its turn is the central elements connected to the invention of a regional production. The introduction of design in the state of Pará mediates the invention of Pará and Amazonian regional products.
Acesso aberto (Open Access)
Utilização de escória produzida em alto-forno a carvão vegetal como agregado graúdo e miúdo para concreto
(Universidade Federal do Pará, 2014-01-29) ALMEIDA, Gyselle Maciel de; MACEDO, Alcebíades Negrão; http://lattes.cnpq.br/8313864897400179
The steel production requires many stages and generates large quantities of slag, these rising stocks are worrying metallurgists and environmentalists aiming the rational use of this industrial byproduct, in order to minimize possibles environmental problems. In this sense, the civil construction presents a quite fit sector to the use of reuse techniques, of wastes and byproducts, from different industries. Besides the environmental benefits, like the reduction of non-renewable natural resources, the emergence alternative construction materials enables the reduction in the cost of construction, important factor when is evaluated the deficiency existing housing in Brazil. In this research is studied a possible recycling of blast furnace slag, from of hypothesis that is viable its utilization as coarse aggregate and fine aggregate for concretes. Its influence is studied on the characteristic of concrete in fresh state (workability) and in hardened state (axial compressive strength, tensile strength by diametral compression and elastic modulus). In this work the content of substitutions of blast furnace slag was diversified, the water-to-cement ratio and the ages of breaking of the specimens. The used methodology was based on lab rehearsals and in the use of statistical tools to validate the results. With the results obtained in this study, it was found that the use of large amounts of blast furnace slag as coarse and kid aggregate for concrete, in general, had no influence or not exerted a positive influence in the studied properties. We conclude that the findings pointed to the non-technical viability of using this waste as aggregates for concrete.