Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells

In this study, coconut shells were used as aggregate replacement in porous asphalt to observe its effect on sound absorption through Impedance Tube test. For coconut shells aggregate porous asphalt to be used in realistic situations it is essential to ensure its mix integrity, resistance to oxidatio...

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Main Authors:	Norhafizah, Manap, Putra Jaya, Ramadhansyah, Muhammad Nazri, Borhan, Norhashidah, Manap, Juraidah, A.
Format:	Article
Language:	English
Published:	Blue Eyes Intelligence Engineering & Sciences Publication 2019
Subjects:	TE Highway engineering. Roads and pavements
Online Access:	http://umpir.ump.edu.my/id/eprint/26818/ http://umpir.ump.edu.my/id/eprint/26818/ http://umpir.ump.edu.my/id/eprint/26818/ http://umpir.ump.edu.my/id/eprint/26818/1/Acoustic%20Absorption%20Characteristics%20of%20Porous%20Asphalt.pdf

id	ump-26818
recordtype	eprints
spelling	ump-268182020-03-19T03:15:36Z http://umpir.ump.edu.my/id/eprint/26818/ Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells Norhafizah, Manap Putra Jaya, Ramadhansyah Muhammad Nazri, Borhan Norhashidah, Manap Juraidah, A. TE Highway engineering. Roads and pavements In this study, coconut shells were used as aggregate replacement in porous asphalt to observe its effect on sound absorption through Impedance Tube test. For coconut shells aggregate porous asphalt to be used in realistic situations it is essential to ensure its mix integrity, resistance to oxidation and raveling as well as its durability; therefore, the Cantabro Test, Binder drain-down test and Theoretical Maximum Density were also conducted in this study. The result showed that porous asphalt containing coconut shells exhibited significance improvement of sound absorption. The sound absorption coefficient of porous asphalt incorporating 10%, 30% and 50% of coconut shells approximately at the peak of the curve which is at the frequency of 850hz are 0.93, 0.96 and 0.93 while for conventional porous asphalt is 0.89. This study also found that porous asphalt containing 10 - 50% of coconut shells contributed a significance improvement in sound absorption compare than conventional porous asphalt at the frequency of 200 – 1600 Hz. However, only porous asphalt containing 10% of coconut shells satisfied all the parameters tested similar to the conventional porous asphalt. Blue Eyes Intelligence Engineering & Sciences Publication 2019 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/26818/1/Acoustic%20Absorption%20Characteristics%20of%20Porous%20Asphalt.pdf Norhafizah, Manap and Putra Jaya, Ramadhansyah and Muhammad Nazri, Borhan and Norhashidah, Manap and Juraidah, A. (2019) Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells. International Journal of Recent Technology and Engineering, 8 (3S3). pp. 327-331. ISSN 2277-3878 https://www.ijrte.org/wp-content/uploads/papers/v8i3s3/C10011183S319.pdf http://dx.doi.org/10.35940/ijrte.C1001.1183S319
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TE Highway engineering. Roads and pavements
spellingShingle	TE Highway engineering. Roads and pavements Norhafizah, Manap Putra Jaya, Ramadhansyah Muhammad Nazri, Borhan Norhashidah, Manap Juraidah, A. Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells
description	In this study, coconut shells were used as aggregate replacement in porous asphalt to observe its effect on sound absorption through Impedance Tube test. For coconut shells aggregate porous asphalt to be used in realistic situations it is essential to ensure its mix integrity, resistance to oxidation and raveling as well as its durability; therefore, the Cantabro Test, Binder drain-down test and Theoretical Maximum Density were also conducted in this study. The result showed that porous asphalt containing coconut shells exhibited significance improvement of sound absorption. The sound absorption coefficient of porous asphalt incorporating 10%, 30% and 50% of coconut shells approximately at the peak of the curve which is at the frequency of 850hz are 0.93, 0.96 and 0.93 while for conventional porous asphalt is 0.89. This study also found that porous asphalt containing 10 - 50% of coconut shells contributed a significance improvement in sound absorption compare than conventional porous asphalt at the frequency of 200 – 1600 Hz. However, only porous asphalt containing 10% of coconut shells satisfied all the parameters tested similar to the conventional porous asphalt.
format	Article
author	Norhafizah, Manap Putra Jaya, Ramadhansyah Muhammad Nazri, Borhan Norhashidah, Manap Juraidah, A.
author_facet	Norhafizah, Manap Putra Jaya, Ramadhansyah Muhammad Nazri, Borhan Norhashidah, Manap Juraidah, A.
author_sort	Norhafizah, Manap
title	Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells
title_short	Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells
title_full	Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells
title_fullStr	Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells
title_full_unstemmed	Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells
title_sort	acoustic absorption characteristics of porous asphalt containing coconut shells
publisher	Blue Eyes Intelligence Engineering & Sciences Publication
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/26818/ http://umpir.ump.edu.my/id/eprint/26818/ http://umpir.ump.edu.my/id/eprint/26818/ http://umpir.ump.edu.my/id/eprint/26818/1/Acoustic%20Absorption%20Characteristics%20of%20Porous%20Asphalt.pdf
first_indexed	2023-09-18T22:42:00Z
last_indexed	2023-09-18T22:42:00Z
_version_	1777416976846553088

Acoustic Absorption Characteristics of Porous Asphalt Containing Coconut Shells

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