Acoustic insulation of recycled PET bricks masonry

This work is about the acoustic insulation against external noise of a masonry enclosure with bricks made from recycled polyethylene terephthalate (PET) particles and Portland cement, developed by this team of authors. Acoustic insulation tests were conducted in a laboratory at the National University of Cordoba. The Weighted Acoustic Reduction Indexes (Rw) of the different enclosures were calculated. The results were compared with those of other traditional types of enclosures commonly used in Argentina for housing, such as common fired soil brick masonry, hollow ceramic brick masonry, concrete plates, and gypsum boards. Finally, the compliance with current national acoustic standards was verified. Two types of enclosures with recycled PET bricks comply with this Standard, because their Rw are higher or equal to the minimum recommended value by the national Standard (48 dB). The types of enclosures that comply with the national standard are 0,27 m thick and have one side plastered.