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Advisor(s)
Abstract(s)
A presente dissertação trata os problemas associados ao isolamento térmico de
paredes duplas e pavimentos tradicionais com estrutura de madeira, com caixas de
ar não preenchidas. Para aumentar a resistência térmica dos elementos
construtivos utilizou-se um material inovador constituído por granulados de cortiça
e borracha, que foi aplicado por introdução pneumática.
A metodologia proposta foi desenvolvida de modo a que a introdução do material
granulado, nos espaços com ar, fosse feita através de furos com diâmetros não
excedendo 20 mm. O material é colocado por meio de pistola pneumática.
Para a realização do trabalho foram construídos dois simuladores, um para
paredes duplas e outro para pavimentos com estrutura de madeira. Os simuladores
foram equipados com um sistema de produção de frio, tipo split, de modo a alterar
as temperaturas interiores e exteriores.
Para seleção prévia de misturas com melhores desempenhos foi contruída uma
célula térmica. Uma das misturas escolhida foi validada pelo LNEC.
A melhoria do comportamento térmico dos elementos construtivos com caixas de ar
não preenchidas, permitiu a realização da reabilitação térmica em 10% do tempo e
entre 30 e 70% nos custos de execução, quando comparada com as soluções mais
correntes.
The present dissertation deals with the problems related to the thermal insulation of double stud walls and traditional floors with wooden structure. In order to increase the thermal resistance of the building elements, an innovative material, consisting of granulated cork and rubber, was used. The methodology proposed in this work was developed so that the granulated material could be filled into the air spaces through holes with diameters not exceeding 20 mm. The material is placed into the holes by means of a pneumatic device. Two simulators were constructed, one for double stud walls and another for floors with wooden structure with stucco ceilings. Both simulators were performed with a free cooling production unit, in order to control the indoor and outdoor temperatures. A thermal adiabatic chamber was built to select the different formulations to achieve de mixture with the best performance needed. One of the mixtures chosen was validated by the National Laboratory of Civil Engineering (LNEC). This study shows that the improvement of the thermal behavior of the building elements enables the thermal rehabilitation, in 10% of the time and with 30% and 70% of the costs, when compared to the most common solutions.
The present dissertation deals with the problems related to the thermal insulation of double stud walls and traditional floors with wooden structure. In order to increase the thermal resistance of the building elements, an innovative material, consisting of granulated cork and rubber, was used. The methodology proposed in this work was developed so that the granulated material could be filled into the air spaces through holes with diameters not exceeding 20 mm. The material is placed into the holes by means of a pneumatic device. Two simulators were constructed, one for double stud walls and another for floors with wooden structure with stucco ceilings. Both simulators were performed with a free cooling production unit, in order to control the indoor and outdoor temperatures. A thermal adiabatic chamber was built to select the different formulations to achieve de mixture with the best performance needed. One of the mixtures chosen was validated by the National Laboratory of Civil Engineering (LNEC). This study shows that the improvement of the thermal behavior of the building elements enables the thermal rehabilitation, in 10% of the time and with 30% and 70% of the costs, when compared to the most common solutions.
Description
Dissertação de natureza científica para obtenção do grau de mestre em Engenharia Civil
Keywords
Isolamento térmico Thermal isolation Reabilitação térmica Thermal rehabilitation Granulado de cortiça Cork granulated Granulado de borracha Rubber granulated Material sustentável Sustainable material
Citation
GONÇALVES, Carlos Miguel Paraíso Diniz - Solução de isolamento térmico com base em cortiça e borracha para edificações novas e existentes. Lisboa: Instituto Superior de Engenharia de Lisboa, 2018. Dissertação de mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa