Paper Title:
Sound Absorbing Properties of Foamed Glasses
  Abstract

“Glass wool” and “rock wool” had been used as sound absorbing materials over several decades because they have excellent sound absorbing properties as well as being very productive and economical. Unfortunately, they were found to be toxic because of flying glass whiskers. To replace glass wool and rock wool as the sound absorbing panels, the recycled glass powders with zeolite and Na2SiO were foamed, adding foaming agents such as NaOH and CaCO3 at different foaming temperatures and time in an electrical furnace. Recycled glass powders from crushed passenger car window were heated up to 720°C in an electrical furnace for an optimal foaming condition. The compressive strength of the foamed glasses was measured using a dynamic materials tester. On the basis of microstructure observation of the foamed glasses, the excellent sound absorbing materials was tried to be fabricated by measuring the sound absorbing coefficient of the foamed glass materials by adding various amounts of NaOH and water.

  Info
Periodical
Materials Science Forum (Volumes 486-487)
Edited by
Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee
Pages
578-581
DOI
10.4028/www.scientific.net/MSF.486-487.578
Citation
H. Y. Cho, C. H. Choi, J. Y. Kim, D. H. Choi, S. W. Lee, "Sound Absorbing Properties of Foamed Glasses", Materials Science Forum, Vols. 486-487, pp. 578-581, 2005
Online since
June 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: J.W. Paek, Beom Seob Kim, Deug Joong Kim
Abstract:Ceramic foams containing MoSi2 were prepared by a self-blowing process of poly-silsesquioxane with MoSi2 as filler. Ceramic foams prepared by...
129
Authors: Li Fen Su, Wei Zhang, Ru Xia, Bin Yang, Ji Bin Miao, Jia Sheng Qian, Jun Jie Bao, Ying Xu
Chapter 1: Materials Engineering
Abstract:The foamed polypropylene (PP) with excellent thermal insulating property was prepared by using the nanosilica (SiO2) aerogels as...
50
Authors: E.A. Yatsenko, B.M. Goltsman, L.A. Yatsenko
Chapter 1: New Functional Materials and Elements of Technologies
Abstract:The composition of the foam glass based on thermal power plant’s ash-slag waste – foamed slag glass – was developed. The synthesis of the...
183