Materiais compósitos à base de gesso contendo eva (Etileno Acetato de Vinila) e vermiculita: otimização de misturas e propriedades termomecânicas

• Autor(a) principal: Oliveira, Marilia Pereira de
• Data de Publicação: 2009
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/tede/5403
• topic: Gesso; Compósito; Vermiculita; Resíduo cerâmico; Cal; Propriedades termomecânicas; Plaster; Composite; Vermiculite; EVA waste; Waste ceramic; Lime; Thermomechanical properties; ENGENHARIAS::ENGENHARIA MECANICA

Gypsum is a building material older than is known. Some of their properties they confer advantages such as fire resistance, thermal and acoustic insulation. By virtue of being a ligand less aggressive environment than Portland cement, its use should be encouraged and new applications studied. This work aims to study the physical-mechanical and thermal composite gypsum with the addition of vermiculite and waste of the footwear industry (EVA). The development of these composites has as its purpose the production of elements of thermal protection coating on walls. In the initial stage were investigated physical and mechanical properties of these composites. To determine the influence of levels of EVA and vermiculite, and ratio water/plaster in the physical and mechanical properties of composites in the fresh and hardened were incorporated into five different percentages of the materials with the three ratios water/plaster. A basic composition of each composite was determined by multivariate analysis. Then the composite was optimized its matrix modified with the partial replacement of gypsum by ceramic waste and lime and studied its physical and mechanical properties as well as aspects related to durability. Finally they were certain the thermal properties of composites with waste gypsum and gypsumvermiculite waste-EVA and proposed a constructive element for use in masonry lining and examined its thermal performance. The results indicated that the incorporation of ceramic waste and lime into matrix gypsum of the composites improved their optimized mechanical properties and their performance in relation to water by surface treatment. The theoretical study has shown that proposed plates reduce the heat load incident on mansory.