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Previous issue date: 2010-04-12 / New materials made from industrial wastes have been studied as an alternative to traditional fabrication processes in building and civil engineering. These materials are produced considering some issues like: cost, efficiency and reduction of nvironmental damage. Specifically in cases of materials destined to dwellings in low latitude regions, like Brazilian Northeast, efficiency is related to mechanical and thermal resistance. Thus, when thermal insulation and energetic efficiency are aimed, it s important to increase thermal resistance without depletion of mechanical properties. This research was conducted on a construction element made of two plates of cement mortar, interspersed with a plate of recycled expanded polystyrene (EPS). This component, widely known as sandwich-panel, is commonly manufactured with commercial EPS whose substitution was proposed in this study. For this purpose it was applied a detailed methodology that defines parameters to a rational batching of the elements that constitute the nucleus. Samples of recycled EPS were made in two different values of apparent specific mass (ρ = 65 kg/m?; ρ = 130 kg/m?) and submitted to the Quick-Line 30TM that is a thermophysical properties analyzer. Based on the results of thermal conductivity, thermal capacity and thermal diffusivity obtained, it was possible to assure that recycled EPS has thermal insulation characteristics that qualify it to replace commercial EPS in building and civil engineering industry / Novos materiais desenvolvidos a partir de res?duos industriais v?m sendo estudados como alternativa aos modelos tradicionalmente empregados na constru??o civil. Para desenvolvimento desses materiais s?o considerados fatores como: custo, efici?ncia e redu??o de passivo ambiental. No caso espec?fico de materiais para aplica??o em habita??es situadas em baixas latitudes, como no Nordeste do Brasil, a efici?ncia diz respeito ?s resist?ncias mec?nica e t?rmica, onde o aumento da resist?ncia t?rmica, sem comprometimento da
resist?ncia mec?nica, ? desej?vel quando se buscam a isola??o t?rmica e a efici?ncia energ?tica das edifica??es. No presente trabalho s?o apresentados os resultados do estudo de um elemento construtivo composto de placas de argamassa de cimento intercaladas por placa de EPS reciclado, constituindo um painel sandu?che para emprego na ind?stria da constru??o civil. Estuda-se detalhadamente a metodologia de execu??o desses pain?is, definindo-se par?metros para dosagem racional dos materiais que comp?em o n?cleo. Foram confeccionados corpos de prova com massas espec?ficas aparentes de 65 kg/m? e 130 kg/m?. As propriedades termof?sicas dos corpos de prova foram analisadas utilizando-se o equipamento Quick-Line 30TM, que forneceu dados de condutividade t?rmica, capacidade calor?fica e difusividade t?rmica. Com base nos resultados obtidos foi poss?vel constatar as boas caracter?sticas do EPS reciclado como material termoisolante, estando esse apto ? substitui??o do EPS comercial em pain?is de constru??o
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15619 |
| Date | 12 April 2010 |
| Creators | Silva, George da Cruz |
| Contributors | CPF:35846852491, http://lattes.cnpq.br/0490476694313938, Teixeira, Pedro Wellington Gon?alves do Nascimento, CPF:35009250306, http://lattes.cnpq.br/3582205759150390, Souza, Roberto Silva de, CPF:44466927472, http://lattes.cnpq.br/4012782800846844, Marinho, George Santos |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Engenharia Mec?nica, UFRN, BR, Tecnologia de Materiais; Projetos Mec?nicos; Termoci?ncias |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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