Análise do uso de bandejas para ovos de papelão e bandejas de isopor como isolante térmico de paredes de alvenaria

Abstract

Nowadays, there is a major worldwide concern about the sustainable development in the civil construction industry, once it’s an area that still presents difficulties about incorporating constructive methods that minimize the effects caused to nature. Therefore, it’s necessary to search for more solutions, methods and materials that provides successful and environmentally accurate buildings. Fortunately, the reuse of solid waste in construction processes is a kind of positive alternative to sustainable innovation. Therefore, the present research focuses on the reuse of Styrofoam trays and cardboard egg trays as thermal insulating materials for masonry. Considering the potential of these materials in providing thermal comfort for buildings, heat transfer analyses were performed applying them as coating in two types of walls, where one of them is constituted by concrete blocks and the other by soil-cement bricks with expanded clay. The results obtained with this research shows that the use of these trays as a thermal insulation material is useful. It was verified that the concrete block wall clads in styrofoam trays presented a significant reduction in temperature variation when compared to uncoated wall. The masonry of soil-cement bricks with expanded clay when coated with these same types of trays also showed a decrease in temperature variation, but in less significant way. Through uniform and satisfactory results, become evident that it’s viable to reuse these residues as thermal insulation materials in construction industry.