Manufacture of Sound Absorbing Material from Recycled Rice Straws for Room Acoustics Improvements

  • Authors

    • Lory Liza D. Bulay-, D.Eng og
    • Reggie C. Gustilo, PhD
    https://doi.org/10.14419/ijet.v7i4.16.22883

    Received date: December 2, 2018

    Accepted date: December 2, 2018

    Published date: November 27, 2018

  • Abstract

    The Philippines, as an agricultural country, produces an excessive amount of rice straws. Burning of these huge amounts of rice straw is also discouraged due to the harmful effects in the environment such as air pollutions and the like.  A good way of disposing the huge amount of rice straw is to recycle and use them as components of sound absorbing composite wood boards that may be used to improve the acoustic quality of the room. The composite wood board, with a size of 2’ by 3’ with a thickness of 1”, is produced with the use of wood chips and rice straw with urea formaldehyde resin as the binder using the same wood-based board manufacturing methods. The sound absorption coefficient was determined by using Sabine’s Equation by recording the reverberation time at various sound levels with use of a sound level meter. Through measurements, it is estimated that the absorption coefficient of the composite wood board ranges from 0.011 to 0.188 which is somewhat similar to that of the absorption coefficient of masonry walls

  • References

    1. Bouman, B. “Rice Facts.”, Rice Almanac, 4th Edition. Los Banos, Philippines, International Rice Research Institute. 283 p. (2013)
    2. Kadam, K. L., Forrest, L. H., Jacobson, W. A., “Rice straw as a lig-nocellulosic resource: collection, processing, transportation, and en-vironmental aspects.”, Biomass and Bioenergy. Vol 18, 369-389. doi: 10.1016/S0961-9534(00)00005-2, (2000).
    3. Kanokkanjana, K., & Garivait, S., “Alternative rice straw manage-ment practices to reduce field open burning in Thailand”, Interna-tional Journal of Environmental Science and Development, 4(2), 119-122. doi: 10.7763/IJESD.20qw13.V4.318, (2013, April).
    4. Gadde, B.; Menke, C.; Wassmann, R., “Rice straw as a renewable energy source in India, Thailand, and the Philippines: Overall poten-tial and limitations for energy contribution and greenhouse gas miti-gation”, Biomass and Bioenergy , Volume 33 (11) – Nov 1, 2009
    5. Nidoy, M. G., “Don’t burn rice straw – PhilRice.” Retrieved from http://www.philrice.gov.ph/dont-burn-rice-straw-philrice/, (2016, April 25).
    6. Rosmiza, M. Z., Davies, W. P., Rosniza Aznie, C. R., Mazdi, M., & Jabil, M. J., “Farmers’ knowledge on potential uses of rice straw: An assessment in MADA and Sekinchan, Malaysia.”, Malaysian Journal of Society and Space. 10(5), 30-43. Retrieved from http://www.ukm.my/geografia/images/upload/4x.geografia-okt%202014-rosmiza%20etal-edam1.pdf , (2014).
    7. Isikgor, F. H., & Becer, C. R., “Lignocellulosic biomass: a sustaina-ble platform for the production of bio-based chemicals and poly-mers.” Retrieved from http://pubs.rsc.org/en/content/articlehtml/2015/py/c5py00263j, (2015, May 5).
    8. Asdrubali, F., Schiavoni, S., & Horoshenkov, K.. “A review of sus-tainable materials for acoustic applications”. Building Acoustics. 19(4), 283-312. (2012)
    9. Yang, H., Kim, D., & Kim, H., “Rice straw – wood particle compo-site for sound absorbing wooden construction materials.” In Biore-source Technology (p. 117 – 121). Elsevier Science Ltd., (2002).
    10. Nasser, R.; Radwan, M. A.; Sadek, M. A.; and Elazab, H. A., “Preparation of Insulating Material Based on Rice Straw and Inex-pensive Polymers for Different Roofs.”, International Journal of Engineering and Technology (IJET), Vol. 7, No. 4, 2018

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  • How to Cite

    og, L. L. D. B.- , D., & PhD, R. C. G. (2018). Manufacture of Sound Absorbing Material from Recycled Rice Straws for Room Acoustics Improvements. International Journal of Engineering and Technology, 7(4.16), 184-187. https://doi.org/10.14419/ijet.v7i4.16.22883