Performance of stone mastic asphalt incorporating steel fiber

Stone Mastic Asphalt (SMA) is a gap-graded hot mix asphalt that contains a large percentage of course aggregate and bitumen filler mastic. Usually, SMA mixes have been added with polymer modified binder. SMA is suffered from severe binder drain down due to the gap graded aggregates mixtures that ten...

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Main Authors:	Nur Ezreen, Jasni, K. A., Masri
Format:	Conference or Workshop Item
Language:	English English
Published:	2019
Subjects:	TD Environmental technology. Sanitary engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/26907/ http://umpir.ump.edu.my/id/eprint/26907/1/89.%20Performance%20of%20stone%20mastic%20asphalt%20incorporating%20steel%20fiber.pdf http://umpir.ump.edu.my/id/eprint/26907/2/89.1%20Performance%20of%20stone%20mastic%20asphalt%20incorporating%20steel%20fiber.pdf

id	ump-26907
recordtype	eprints
spelling	ump-269072020-03-18T02:36:03Z http://umpir.ump.edu.my/id/eprint/26907/ Performance of stone mastic asphalt incorporating steel fiber Nur Ezreen, Jasni K. A., Masri TD Environmental technology. Sanitary engineering Stone Mastic Asphalt (SMA) is a gap-graded hot mix asphalt that contains a large percentage of course aggregate and bitumen filler mastic. Usually, SMA mixes have been added with polymer modified binder. SMA is suffered from severe binder drain down due to the gap graded aggregates mixtures that tend to provide a stable stone to stone skeleton including a rich mixture of asphalt mastic. The Steel Fiber is the additive that will stabilize the asphalt mortar and thicken the bitumen to prevent excessive binder drain down. SMA is good to be used in the presence of fiber to enhance the durability of the SMA mixes. Thus, this paper is presenting the effectiveness of using steel fiber in improving the durability at the surface layer of SMA pavement, which are directly subjected to the traffic effects. To prepare SMA mixtures, Specimens were compacted by applying 50 blows on each face using a Marshall Impact compactor at specific compaction temperatures. Then, the modified specimens were tested to investigate the performance in terms of Los Angeles Abrasion Test, Marshall Stability Test, Resilient Modulus Test, and Dynamic Creep. The results indicated that the specimens incorporating steel fiber could be used in the binder course of flexible pavement because of its positive stability impact. The result shows that the addition of 0.3% fiber leads to better stability and stiffness while 0.5% fiber for resilient and enhanced modulus dynamic creep at 25℃ and 0.4%fiber at 40℃. Thus, it can be concluded that the addition of steel fiber in the mixture has the potential to improve binder drain down the problem. To generate a better pavement mix in the future, it is advisable to have further research using the fiber at different compacted temperature and a different number of blows. 2019 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/26907/1/89.%20Performance%20of%20stone%20mastic%20asphalt%20incorporating%20steel%20fiber.pdf pdf en http://umpir.ump.edu.my/id/eprint/26907/2/89.1%20Performance%20of%20stone%20mastic%20asphalt%20incorporating%20steel%20fiber.pdf Nur Ezreen, Jasni and K. A., Masri (2019) Performance of stone mastic asphalt incorporating steel fiber. In: 3rd National Conference on Wind and Earthquake Engineering & International Seminar on Sustainable Construction Engineering (NCWE & ISSCE 2019), 12-13 July 2019 , Kuala Lumpur, Malaysia. pp. 1-8.. (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TD Environmental technology. Sanitary engineering
spellingShingle	TD Environmental technology. Sanitary engineering Nur Ezreen, Jasni K. A., Masri Performance of stone mastic asphalt incorporating steel fiber
description	Stone Mastic Asphalt (SMA) is a gap-graded hot mix asphalt that contains a large percentage of course aggregate and bitumen filler mastic. Usually, SMA mixes have been added with polymer modified binder. SMA is suffered from severe binder drain down due to the gap graded aggregates mixtures that tend to provide a stable stone to stone skeleton including a rich mixture of asphalt mastic. The Steel Fiber is the additive that will stabilize the asphalt mortar and thicken the bitumen to prevent excessive binder drain down. SMA is good to be used in the presence of fiber to enhance the durability of the SMA mixes. Thus, this paper is presenting the effectiveness of using steel fiber in improving the durability at the surface layer of SMA pavement, which are directly subjected to the traffic effects. To prepare SMA mixtures, Specimens were compacted by applying 50 blows on each face using a Marshall Impact compactor at specific compaction temperatures. Then, the modified specimens were tested to investigate the performance in terms of Los Angeles Abrasion Test, Marshall Stability Test, Resilient Modulus Test, and Dynamic Creep. The results indicated that the specimens incorporating steel fiber could be used in the binder course of flexible pavement because of its positive stability impact. The result shows that the addition of 0.3% fiber leads to better stability and stiffness while 0.5% fiber for resilient and enhanced modulus dynamic creep at 25℃ and 0.4%fiber at 40℃. Thus, it can be concluded that the addition of steel fiber in the mixture has the potential to improve binder drain down the problem. To generate a better pavement mix in the future, it is advisable to have further research using the fiber at different compacted temperature and a different number of blows.
format	Conference or Workshop Item
author	Nur Ezreen, Jasni K. A., Masri
author_facet	Nur Ezreen, Jasni K. A., Masri
author_sort	Nur Ezreen, Jasni
title	Performance of stone mastic asphalt incorporating steel fiber
title_short	Performance of stone mastic asphalt incorporating steel fiber
title_full	Performance of stone mastic asphalt incorporating steel fiber
title_fullStr	Performance of stone mastic asphalt incorporating steel fiber
title_full_unstemmed	Performance of stone mastic asphalt incorporating steel fiber
title_sort	performance of stone mastic asphalt incorporating steel fiber
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/26907/ http://umpir.ump.edu.my/id/eprint/26907/1/89.%20Performance%20of%20stone%20mastic%20asphalt%20incorporating%20steel%20fiber.pdf http://umpir.ump.edu.my/id/eprint/26907/2/89.1%20Performance%20of%20stone%20mastic%20asphalt%20incorporating%20steel%20fiber.pdf
first_indexed	2023-09-18T22:42:11Z
last_indexed	2023-09-18T22:42:11Z
_version_	1777416988952363008

Performance of stone mastic asphalt incorporating steel fiber

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