On the acoustic performance of a precast panel system made from environmentally sustainable concrete : application in sports hall buildings

Rajagopalan, Priya and Leung, Tony C.Y. 2013, On the acoustic performance of a precast panel system made from environmentally sustainable concrete : application in sports hall buildings, Architectural science review, vol. 56, no. 2, pp. 118-130.

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Title On the acoustic performance of a precast panel system made from environmentally sustainable concrete : application in sports hall buildings
Author(s) Rajagopalan, Priya
Leung, Tony C.Y.
Journal name Architectural science review
Volume number 56
Issue number 2
Start page 118
End page 130
Total pages 13
Publisher Taylor & Francis
Place of publication London, England
Publication date 2013
ISSN 0003-8628
1758-9622
Keyword(s) environmentally sustainable concrete
acoustic performance
absorption
reverberation time
Summary The use of green building materials and products promotes conservation of non-renewable resources and help reduce associated environmental impacts. This article reports the acoustical performance of a precast panel system made largely from concrete waste material. Two major applications for such panels that are being investigated currently include walls and claddings to industrial and commercial buildings and sound barriers for urban freeways. In this study, the application of the concrete panels for optimizing reverberation time (RT) in sports halls is tested using numerical simulations. As an innovative approach, additional layers are added to the precast panels to improve their appearance. The absorption coefficients of the concrete panel improved significantly with the architectural finish. The material can be tuned according to the required peak frequency. The architectural finish helped reduce the RT for frequencies above 500 Hz. Its application to different types of ceilings revealed that the RT of curved ceiling reduced up to 40% compared to flat and hybrid ceiling. A comparison of wall and ceiling modifications in small, medium and large sports halls showed that medium-sized halls have better acoustical performance compared with small and large halls with ceiling as well as wall treatment.
Language eng
Field of Research 120104 Architectural Science and Technology (incl Acoustics, Lighting, Structure and Ecologically Sustainable Design)
120202 Building Science and Techniques
Socio Economic Objective 970112 Expanding Knowledge in Built Environment and Design
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30051753

Document type: Journal Article
Collection: School of Architecture and Built Environment
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