Desarrollo de panel acústico a partir de la recolección de bolsas de cemento y guadua para disminuir los fenómenos de absorción dentro de los espacios

Abstract

This project proposes an acoustic panel to reduce absorption phenomena in spaces. The panel was elaborated under the collection and recycling of cement bags and guadua fiber, in order to demonstrate a constructive and innovative alternative in the market, complying with the physical and acoustic characteristics that a thermoacoustic insulator must have, this in turn will contribute to the reduction of the environmental impact; since the construction industry is the main consumer of resources in the world; according to studies, 40% of the total energy and 30% of CO2 emissions come from this industry due to its high consumption. On the other hand, it is pertinent to mention the acoustic impact produced by low quality materials implemented in spaces that are susceptible to noise emission and do not meet the need to mitigate phenomena such as echo or reverberation that can propagate easily, to the point of causing negative effects on people's health. Currently, there is not a wide variety of thermal and acoustic insulation that are environmentally friendly. The design of this panel aims to solve this problem; it has determining dimensions, a thickness of 2cm and 3cm as a result of the results obtained in the initial 4" samples, physical properties such as flexibility, stiffness, porosity were evaluated. Subsequently, the ideal dosage was chosen to be able to produce the panels in the final dimensions (30x30, 60x60). Finally, they were subjected to acoustic tests such as the sound level meter, impedance tube, fireproof test and heat chamber where it is evident that the 30x30 panel with a thickness of 2cm presented favorable results in the mentioned tests.