Pengaruh variasi komposit serat terhadap nilai koefisien absorpsi suara dan sifat mekanik pada komposit serat ampas tebu dan bambu betung dengan matriks gypsum

Sahida, Muhammad Agung (2015) Pengaruh variasi komposit serat terhadap nilai koefisien absorpsi suara dan sifat mekanik pada komposit serat ampas tebu dan bambu betung dengan matriks gypsum. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Farid, DEA ABSTRAK Penelitian ini dilakukan untuk membuat material komposit gypsum berpenguat serat alam sebagai penyerap suara. Permasalahan yang dikaji adalah untuk mengetahui hubungan kombinasi serat ampas tebu dan serat bambu betung bermatriks gypsum pada komposit terhadap nilai koefisien absorpsi suara, kekuatan tekan, dan kekuatan lenturnya. Perbandingan yang digunakan adalah Vf 30, 50 dan 70 % gypsum dengan panjang serat 40 mm. Tujuannya untuk mendapatkan komposit dengan nilai koefisien absorpsi suara yang memenuhi standar ISO 11654. Metode yang digunakan adalah hand lay up. Metode pengujian berdasarkan standart ASTM E1050, ASTM D790 dan ASTM D695. Dari hasil pengujian didapatkan nilai koefisien absorpsi suara dari ketiga parameter memenuhi standar ISO 11654 dengan nilai koefisien α lebih dari 0,15. Pada komposisi Vf 70% gipsum didapatkan hasil terbaik dengan nilai kekuatan lentur 2,00 MPa dan kekuatan tekan 6,05 MPa. ======================================================================================================= This research was done to make gypsum composite fiber reinforced material to be a sound absorbing material. The problems studied was to understand the relation between the combination of bagasse and betung bamboo’s fiber with gypsum on the sound absorption coefficient value (α), compression strength, and bending strength. The composition used by is 30, 50, and 70% volume Gypsum and the length size of the fiber used was 40 mm. The aim was to get a good correlation between sound absorption coefficient value, bending strength, compression strength with given composition of fibers and its application as sound absorbing material according to ISO 11654 standard. Method used to made the composite was stamp sheet. Methods of testing were in accordance to ASTM E1050, ASTM D790 and ASTM D695 standards. From the results, obtained that the sound absorption coefficient value from three variables met the ISO 11654 standard with coefficient α value bigger than 0,15. On Vf 70% gypsum composition has the best value of bending strength at 2,00 MPa and the compression strength at 6,05 MPa.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 620.118 Sah p
Uncontrolled Keywords: gypsum, serat ampas tebu, serat bambu betung, koefisien absorpsi
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials.
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: - Taufiq Rahmanu
Date Deposited: 25 Nov 2019 07:39
Last Modified: 25 Nov 2019 07:39
URI: http://repository.its.ac.id/id/eprint/72026

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