Materiales de Construcción, Vol 63, No 310 (2013)

Lightweight concrete with EVA recycled aggregate for impact noise attenuation


https://doi.org/10.3989/mc.2012.06911

B. F. Tutikian
Departamento de Ingeniería, Universidad do Rio dos Sinos, São Leopoldo, RS, Brazil

M. F. O. Nunes
Centro de Arquitectura, Universidad de Caxias do Sul, RS, Brazil

L. C. Leal
Departamento de Ingeniería, Universidad do Rio dos Sinos, São Leopoldo, RS, Brazil

L. Marquetto
Departamento de Ingeniería, Universidad do Rio dos Sinos, São Leopoldo, RS, Brazil

Abstract


The purpose of this study is to evaluate the acoustic performance of lightweight concrete with ethylene vinyl acetate copolymer (EVA) residues to reduce impact noise on floors. Three types of concrete with three different mix proportions were evaluated. The method adopted includes the characterization of water absorption, voids and density of the samples. The experimental study of noise impact followed the procedures of ISO 140. The results indicate that the lightweight concrete with EVA recycled aggregate can reduce impact noise levels by up to 15 dB and the highest percentage of coarse aggregate EVA does not entail a higher acoustic performance.

Keywords


concrete; polymer; characterization

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References


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