Sound absorption of lightweight brick containing expanded polystyrene beads and palm oil fuel ash

Adnan1, S H and Kamarulzaman, N A and Mohd Sari, K A and Osman, M H and Jamellodin, Z and Abdul Hamid, N A and Alisibramulisi, A and Abdul Roni, N and Mohd Yassin, N I and Wahee Anuar, M N A (2020) Sound absorption of lightweight brick containing expanded polystyrene beads and palm oil fuel ash. In: 2nd International Conference on Civil & Environmental Engineering, 20th - 21st November 2019, Langkawi, Kedah, Malaysia.

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Bricks are considered as important and strongest materials being used over the years. Commonly, bricks are made of clay mineral and usually used in construction of building wall. The purpose of this study is to assess the effectiveness of palm oil fuel ash (POFA) and expanded polystyrene beads (EPS) as a brick and its suitability as sound absorption material. POFA is used as partial replacement of cement while EPS as partial replacement of sand in the mortar mixture. Various percentages of EPS and POFA have been used which include 0%, 20%, 30%, 40% and 50% as sand replacement and from 0%, 5%, 10%, 15%, 20% and 25% as cement replacement respectively. Sound absorption tests were conducted using impedance tube. From this study, it has been identified that for sound absorption test, lowest result recorded is at maximum 25% POFA replacement with 50% EPS replacement with 0.011 sound absorption coefficient at frequency of 3500 Hz. The best sound absorption coefficient recorded is 0.998 at frequency of 250 Hz for sample with 0% EPS and 20% POFA replacement. It can be recognized that the brick produced have the excellent sound absorption.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Structural and Materials Engineering
Depositing User: Mrs. Normardiana Mardi
Date Deposited: 24 Jan 2022 02:51
Last Modified: 24 Jan 2022 02:51

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