Abstract
In this paper we report a study on acoustic properties of coir mats –a biofibremat of various weaving patterns. In this study coir-mat has been introduced as one of the sound absorbing materials.There are many advantages of coconut fibres because they are moth-proof,non-hazardous,resistant to fungi and ecofriendly with good sound absorption.The study reveals the effectiveness of coir mats as sound absorber and its applications in building acoustics and automotive applications . Coir mats of different weaving were selected for the study viz;Panama, Herringbone, Boucle weaving,mesh matting,Twill weave matting,Diamond weave matting,PVC tufted mat,Lovers Knot,VC2 mat etc.The experiment is performed on an impedance tube apparatus as per ASTM E 1050/ISO 10534-2. The experimental analysis is made for the frequency range 100 Hz-6300 Hz.The results reveal that the mats show good sound absorption coefficient at high frequencies and also the mats with latex backing and increased thickness exhibit appreciable absorption of coir mats.
Published Version
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