The G1, S1 and W1 wall structure

Sound Insulation Performance of Structural Wood Wall Integrated with Wood Plastic Composite

Xiaojun YANG, Xiaolan TANG, Lan MA, Youfu SUN

Abstract


The sound insulation performance is an important technical index for evaluating the physical property of the building wall. Three kinds of structural wood walls integrated with wood plastic composite (WPC) were designed. And the sound insulation performance of the walls was studied. The results showed that for the wall that constructed by the WPC as the wall studs, compared with the one that constructed by the pine wood as the wall studs, the deviation of their sound insulation was lower than ±3 dB. The wall's external panel material had significant effect on the wall's sound insulation property, and the contribution of the wood-plastic panel to the sound insulation was much higher than that of the polyvinyl chloride (PVC) plastic hanging board. The surrounding sealing quality of the wall's external panel material had an important influence on the sound insulation effect of the building wall, and the panel of the wood plastic interior wall had less influence on the sound insulation performance of the wall. Taking the sound-absorbing cotton or non-woven fabric as elastic strips was an effective technical measure to improve the sound insulation performance of the walls. The sound insulation was improved by 2.4 dB and 3.1dB respectively after the correction of pink noise spectrum, and increased by 2.8 dB and 3.6 dB respectively after the correction of traffic noise spectrum.

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References


Ashrafi M, Vaziri A, Nayeb-Hashemi H, 2011. Effect of proc-essing variables and fiber reinforcement on the mechanical properties of wood plastic composites. Journal of Reinforced Plastics and Composites, 30(23):1939-1945. DOI:10.1177/0731684411431120.
Crocker M J, Price A J, 1969. Sound transmission using statistical energy analysis. Journal of Sound and Vibration, 9(3):469-486. DOI:10.1016/0022-460x(69)90185-0.
Durai M, 2017. Corrigendum:a mixed-methods trial of broad band noise and nature sounds for tinnitus therapy:group and individual responses modeled under the adaptation level theory of tinnitus. Frontiers in Aging Neuroscience, 9:116. DOI:10.3389/fnagi.2017.00116.
Galkin V S, Rusakov S V, 2014. An asymptotic theory of the sound dispersion in a binary mixture of gases. Journal of Applied Mathematics and Mechanics, 78(2):132-136. DOI:10.1016/j.jappmathmech.2014.07.005.
Hasni A A, Adamson L B, Williamson R A, et al., 2017. Adding sound to theory of mind:comparing children's development of mental-state understanding in the auditory and visual realms. Journal of Experimental Child Psychology, 164:239-249. DOI:10.1016/j.jecp.2017.07.009.
Hoffmann C, Lang M, Heidemeyer P, et al., 2017. Foam extrusion of PP-based wood plastic composites with chemical blowing agents and the Celuka technique. Journal of Cellular Plastics, 53(6):623-638. DOI:10.1177/0021955x16670578.
Liu X T, Xi F, Yang X L, et al., 2017. Research progress of wooden structure construction sound insulation technology. China Forest Products Industry, 44(7):6-9, 14. DOI:10.19531/j.issn1001-5299.201707002.
Moritzer E, Hopp M, 2017. Bonding of wood-plastic composites (WPC):material and surface modification for special applic-ations. Welding in the World, 61(5):1029-1038. DOI:10.1007/s40194-017-0487-0.
Quiros I, Gonzalez T, Nucamendi U, et al., 2018. On the phantom barrier crossing and the bounds on the speed of sound in non-minimal derivative coupling theories. Classical and Quantum Gravity, 35(7):075005. DOI:10.1088/1361- 6382/aaae24.[LinkOut]
Vionkur R Y, 1996. Evaluating sound-transmission effects in multi-layer partitions. Journal of Sound and Vibration, 30:24-28.
Wei Y B, Yao Y F, Yu H D, et al., 2015. Research on sound insulation property of wood-plastic composite. Journal of Zhejiang Sci-Tech University (Natural Sciences), 33(5):655-659. DOI:673-3851(2015)05-0655-05
Zhou Y H, Fan M Z, Lin L Y, 2017. Investigation of bulk and in situ mechanical properties of coupling agents treated wood plastic composites. Polymer Testing, 58:292-299. DOI:10.1016/j.polymertesting.2016.12.026.




DOI: http://dx.doi.org/10.21967/jbb.v4i2.215

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Copyright (c) 2019 Xiaojun YANG, Xiaolan TANG, Lan MA, Youfu SUN

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