Análisis del desempeño acústico de paredes compuestas utilizando una matriz de polímeros termoplásticos y fibras vegetales de coco

Abstract

One of the most important problems nowadays and that little attention is paid especially in our country, is noise pollution, which can bring with it different health problems such as: stress, sleep disorders, low productivity, among others. In some countries to reduce noise, different petroleum-based materials are used, thus generating more waste and pollution. To find a possible solution to this problem, this experimental project was proposed, in order to analyze the feasibility of using two recycled materials, forming a composite material in order to analyze its acoustic performance. The composite walls analyzed are formed by two panels 5 or 7mm thick with a gap between the panels having a total thickness of 8cm; For the evaluation of certain acoustic properties of the material, the impedance tube or Kundt tube was used, following the ISO 10534-2 and ASTM E 1050-98 standards. In addition, a comparison was made of the composite walls with two types of masonry normally used, the hollow concrete block and brick, to obtain the acoustic coefficient of this materials, the ISO 354 standard was followed.