The Acoustic Comfort in the House Made of Plastic Waste

Abstract

This research is conducted to test the plastic waste house, a house prototype from a mixture of plastic waste materials and sawdust in terms of acoustics. In the previous studies, we used 20 different percentage compositions for the plastic waste, rice husks, and sawdust added with cement adhesive. The best results were found in 30% plastic waste composition and 70% sawdust with Portland cement adhesive. In this composition, the result obtained is a sound absorption value of 0.468 s [1]. This study continues previous research, which includes analyzing the comfort of a prototype house with the best mix in previous studies. The method used is a sound absorption chorus test using research instruments such as microphones, real-time analyzers, and the INSUL application. This study aimed to determine whether the bricks made with the same mixing ratio have the same value when used in the house model and to determine the absorption value. This study found that the absorption value of the plastic waste bricks used for house prototyping walls has good absorption with a reverberation time of T₃₀=0.468 seconds; the temperature inside the room is 30.8 ℃ with a humidity of 54%, while at the same time the temperature outside is 37℃ with a humidity of 57%.