Acoustic absorbers based on recycled materials

MIYARA, FEDERICO; PASCH, VIVIAN; ACCOLTI, ERNESTO; MIECHI, PABLO

Buenos Aires

Congreso; 22nd International Congress on Acoustics; 2016

Ibero-american Federation of Acoustics (FIA) and the Argentinian Acousticians Association (AdAA), in cooperation with the Chilean Acoustics Society (SOCHA), under the endorsement of the International Commission for Acoustics (ICA)

Acoustic absorbers are usually expensive materials, which makes them difficult to afford for third-world countries educational premises. This is one of main the reasons why classroom acoustics are frequently poor, affecting educational quality. To circumvent that problem, a material based on recycled paper, rice husks and additives has been developed. Emphasis has been made on getting a handcraft manufacturing process capable of being carried out by the school community members. Another important condition that was proposed is that the manufacturing process uses the minimum amount of water and that it uses a solar drying method. Preliminary results are reported.