Civil Engineering and Architecture Vol. 9(1), pp. 139 - 149
DOI: 10.13189/cea.2021.090112
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The Acoustical Performance of Water Hyacinth Based Porous-Ceramic Compared to the Biomass Fiber Composites for Architecture Application

Erni Setyowati ^1,*, Gagoek Hardiman ¹, Nur Farida Grafiana ^2
1 Department of Architecture, Faculty of Engineering, Diponegoro University, Semarang, 50275, Indonesia
² Department of Chemistry, Faculty of Science and Mathematics, Diponegoro University, Semarang, 50275, Indonesia

ABSTRACT

The hyacinth plant (Eichhornia crassipes) is an aquatic weed that causes the silting of swamps. The water hyacinth research was developed because of concerns over the threat of biodiversity in swamps by utilizing water hyacinth for ceramic and composite mixtures. This current research highlights the comparative acoustical performances of ceramic and composite with water hyacinth contents. Dried water hyacinth was added to the clay ceramic mixture with a weight percentage of 2, 6, 8, and 10 wt%. The ceramic dough was then shaped hexagonally with an interlock system and molded overlay respectively before burning and biscuits, while the composite dough consisted of 200 ml polyester resin: 25 mg water hyacinth: 20 ml catalyst. The acoustic test methods refer to ASTM 1050-98 and ASTM E2611-09 for sound absorption and sound transmission loss respectively. The result showed that the 8 wt% water hyacinth mixture of porous ceramic had an average absorption coefficient of 0.29 and a sound transmission loss of a wide range of frequencies with an average of 59.1 dB. Meanwhile, the resin composite has a poor average of sound absorption of 0.10 - 0.11 and 58.08 - 58.36 dB on its STL. The innovation of the water hyacinth-ceramic, however, had a promising character as a Helmholtz-based diffuser-absorber.

KEYWORDS
Eichhornia crassipes, Swamp Sedimentation, Porous Ceramics, Diffuser Absorber

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Erni Setyowati , Gagoek Hardiman , Nur Farida Grafiana , "The Acoustical Performance of Water Hyacinth Based Porous-Ceramic Compared to the Biomass Fiber Composites for Architecture Application," Civil Engineering and Architecture, Vol. 9, No. 1, pp. 139 - 149, 2021. DOI: 10.13189/cea.2021.090112.

(b). APA Format:
Erni Setyowati , Gagoek Hardiman , Nur Farida Grafiana (2021). The Acoustical Performance of Water Hyacinth Based Porous-Ceramic Compared to the Biomass Fiber Composites for Architecture Application. Civil Engineering and Architecture, 9(1), 139 - 149. DOI: 10.13189/cea.2021.090112.