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Open AccessArticle

Acoustic Performance of Resilient Materials Using Acrylic Polymer Emulsion Resin

Building and Urban Research Institute, Korea Institute of Civil Engineering and Building Technology, 283, Goyang-daero, Ilsanseo-gu, Goyang-si, Gyeonngi-do 10223, Korea
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Academic Editor: Jorge de Brito
Materials 2016, 9(7), 592; https://doi.org/10.3390/ma9070592
Received: 2 June 2016 / Revised: 11 July 2016 / Accepted: 12 July 2016 / Published: 19 July 2016
(This article belongs to the Section Advanced Composites)
There have been frequent cases of civil complaints and disputes in relation to floor impact noises over the years. To solve these issues, a substantial amount of sound resilient material is installed between the concrete slab and the foamed concrete during construction. A new place-type resilient material is made from cement, silica powder, sodium sulfate, expanded-polystyrene, anhydrite, fly ash, and acrylic polymer emulsion resin. Its physical characteristics such as density, compressive strength, dynamic stiffness, and remanent strain are analyzed to assess the acoustic performance of the material. The experimental results showed the density and the dynamic stiffness of the proposed resilient material is increased with proportional to the use of cement and silica powder due to the high contents of the raw materials. The remanent strain, related to the serviceability of a structure, is found to be inversely proportional to the density and strength. The amount of reduction in the heavyweight impact noise is significant in a material with high density, high strength, and low remanent strain. Finally, specimen no. R4, having the reduction level of 3 dB for impact ball and 1 dB for bang machine in the single number quantity level, respectively, is the best product to obtain overall acoustic performance. View Full-Text
Keywords: heavyweight impact sound; resilient material; acrylic polymer emulsion resin; floor impact sound reduction; floor system heavyweight impact sound; resilient material; acrylic polymer emulsion resin; floor impact sound reduction; floor system
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Kim, H.; Park, S.; Lee, S. Acoustic Performance of Resilient Materials Using Acrylic Polymer Emulsion Resin. Materials 2016, 9, 592.

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