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Evaluation of Construction Cost, Time, and Sustainable Attributes of Drywalls Supported by Resilient Channels

Department of Architectural Engineering, Hanyang University, Seoul 04763, Korea
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Sustainability 2020, 12(19), 8102; https://doi.org/10.3390/su12198102
Received: 9 September 2020 / Revised: 18 September 2020 / Accepted: 27 September 2020 / Published: 1 October 2020
(This article belongs to the Section Sustainable Materials)
In this study, a gypsum board wall was developed using resilient channels to improve sound insulation performance, constructability, and economic efficiency; the effect of the application of the developed wall on skyscrapers and long-term housing, one of the main forms of modern buildings, was also comprehensively evaluated. Resilient channels were inserted and fixed to ensure the constructability was suitable for high-rise buildings. In addition, the sound insulation performance, durability of the wall, CO2 emissions, and life-cycle cost (LCC), which are key elements for economic efficiency, constructability, and sustainability, were analyzed. The developed lightweight gypsum board drywall with resilient channels was compared with a concrete wall as well as a double stud gypsum board wall, which has been most widely used among existing drywalls. The sound insulation performance and durability were evaluated in a laboratory, and the other items were evaluated after constructing the walls in a hotel building with an area of 2956 m2. The evaluation results show that the developed wall exhibited a 3 dB higher sound insulation performance than the concrete wall, even though it was thinner by 50 mm, and the wall secured the grade of “severe duty” (SD) based on the BS 5234-2 standard in durability evaluation, indicating that it can sufficiently replace concrete walls. Moreover, when the developed wall was installed in an actual building and compared with a concrete wall, a 14.7% reduction in construction cost, 59% reduction in CO2 emissions, and 30.4% reduction in the LCC of the drywall, considering even the remodeling and dismantling stages of the building, were observed. Therefore, it was proven that the newly developed resilient channel drywall with improved constructability has significant value in terms of sound insulation performance, economic efficiency, safety, and eco-friendliness. View Full-Text
Keywords: sound insulation; gypsum board; life-cycle cost; carbon dioxide sound insulation; gypsum board; life-cycle cost; carbon dioxide
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MDPI and ACS Style

Kim, K.H.; Jeon, J.Y. Evaluation of Construction Cost, Time, and Sustainable Attributes of Drywalls Supported by Resilient Channels. Sustainability 2020, 12, 8102. https://doi.org/10.3390/su12198102

AMA Style

Kim KH, Jeon JY. Evaluation of Construction Cost, Time, and Sustainable Attributes of Drywalls Supported by Resilient Channels. Sustainability. 2020; 12(19):8102. https://doi.org/10.3390/su12198102

Chicago/Turabian Style

Kim, Kyung H.; Jeon, Jin Y. 2020. "Evaluation of Construction Cost, Time, and Sustainable Attributes of Drywalls Supported by Resilient Channels" Sustainability 12, no. 19: 8102. https://doi.org/10.3390/su12198102

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