Development of multiple drywall with high sound insulation performance |
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| Authors: | Toshio Matsumoto Hiroyuki Sugaya Hideki Tachibana |
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| Institution: | a Product Development Department, Yoshino Gypsum Co., Ltd., Yoshino-Sekko Toranomon Building, 2-13-10, Nishi-shinbashi, Minato-ku, Tokyo 105-0003, Japan
b Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan |
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| Abstract: | Experimental studies for the development of multiple drywalls with a high sound insulation performance are performed. Firstly, a means of preventing the sound insulation deterioration due to the coincidence effect at high frequencies is investigated by layering two plasterboards with different physical characteristics. Based on the results, a double drywall with a sound insulation performance of Rw = 61 is developed. Further more, a double drywall of Rw = 64 , a triple drywall of Rw = 86 and a quadruple drywall of Rw = 90 are developed. |
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| Keywords: | Drywall Sound insulation performance Coincidence effect Facility for measurement of sound reduction index |
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