Caracterização mecânica, de condutividade térmica e dos custos dos vidros temperados comercializados na cidade de Alegrete/RS

Abstract

The use of tempered glass as a structural element is quite recent, this kind of use brings together many qualities and fears at the same time that they need to be better studied. Due to the lack of ductility, tempered glass is little used in a structural way, because of this, this work sought, through theoretical basis and mechanical and thermal tests, the evaluation of the tensile strength in bending with its displacements, and the thermal conductivity of the material, with the tests meeting the normative prescriptions in force in Brazil. The results showed that the 8 millimeters (mm) glass has a higher elastic regime compared to the other thicknesses studied, and therefore a lower resistance. On the other hand, the 10 mm plates presented a smaller displacement and the highest resistance. And the 12 mm thick plates showed a resistance about twice as high as the 8 mm plates and their displacement very similar to the 10 mm plates. In the thermal conductivity tests, the results obtained suggest that the samples had slightly different compositions, since the thermal conductivity of the glass could not change according to the thickness. Finally, this research suggests that the use of 10 mm tempered glass is the most cost-effective option for the construction of padel courts that the market in the city of Alegrete - RS offers. As for other occupations that aim only at safety and aesthetics, which usually do not suffer significant impacts, such as: windows, doors, shop windows, building facades, stair and balcony parapets, 8 mm tempered glass may be the best choice.