Investigations of physical and rheological properties of aged rubberised bitumen

Several road pavement distresses are related to rheological bitumen properties. Rutting and fatigue cracking are the major distresses that lead to permanent failures in pavement construction. Influence of crumb rubber modifier (CRM) on rheological properties of bitumen binder such as improvement of...

Full description

Bibliographic Details
Main Authors:	Ali, A.H., Mashaan, N.S., Karim, M.R.
Format:	Article
Published:	2013
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://www.scopus.com/inward/record.url?eid=2-s2.0-84874911912&partnerID=40&md5=ceba45813d1aef95f0c02ab71bf07eee http://www.hindawi.com/journals/amse/2013/239036/abs/ http://www.scopus.com/inward/record.url?eid=2-s2.0-84874911912&partnerID=40&md5=ceba45813d1aef95f0c02ab71bf07eee http://www.hindawi.com/journals/amse/2013/239036/abs/ http://eprints.um.edu.my/8755/1/Investigations_of_physical_and_rheological_properties_of_aged_rubberised_bitumen.pdf

id	um-8755
recordtype	eprints
spelling	um-87552014-04-04T01:20:05Z Investigations of physical and rheological properties of aged rubberised bitumen Ali, A.H. Mashaan, N.S. Karim, M.R. TA Engineering (General). Civil engineering (General) Several road pavement distresses are related to rheological bitumen properties. Rutting and fatigue cracking are the major distresses that lead to permanent failures in pavement construction. Influence of crumb rubber modifier (CRM) on rheological properties of bitumen binder such as improvement of high and intermediate temperatures is investigated in the binder's fatigue and rutting resistance through physical-rheological changes in this research. The bitumen binders were aged by rolling thin film oven (RTFOT) to simulate short-term aging and pressure aging vessel (PAV) to simulate long-term aging. The effects of aging on the rheological and physical properties of bitumen binders were studied conducting dynamic shear rheometer test (DSR), Brookfield viscometer test, softening point test, and penetration test. The results showed that the use of rubberised bitumen binder reduces the aging effect on physical and rheological properties of the bitumen binder as illustrated through lower aging index of viscosity, lower aging index of G/sinÎ´, and an increase in Tan Î´ with crumb rubber modifier content increasing, indicating that the crumb rubber might improve the aging resistance of rubberised bitumen binder. In addition, the results showed that the softening point increment (Î�S) and penetration aging ratio (PAR) of the rubberised bitumen binder decreased significantly due to crumb rubber modification. Furthermore, the higher crumb rubber content, the lower G'sinÎ´ after PAV aging, which led to higher resistance to fatigue cracking bitumen. Â© 2013 Asim Hassan Ali et al. 2013 Article PeerReviewed application/pdf http://eprints.um.edu.my/8755/1/Investigations_of_physical_and_rheological_properties_of_aged_rubberised_bitumen.pdf http://www.scopus.com/inward/record.url?eid=2-s2.0-84874911912&partnerID=40&md5=ceba45813d1aef95f0c02ab71bf07eee http://www.hindawi.com/journals/amse/2013/239036/abs/ Ali, A.H.; Mashaan, N.S.; Karim, M.R. (2013) Investigations of physical and rheological properties of aged rubberised bitumen. Advances in Materials Science and Engineering <http://eprints.um.edu.my/view/publication/Advances_in_Materials_Science_and_Engineering.html>, 2013. pp. 1-7. ISSN 1687-6822 http://eprints.um.edu.my/8755/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Ali, A.H. Mashaan, N.S. Karim, M.R. Investigations of physical and rheological properties of aged rubberised bitumen
description	Several road pavement distresses are related to rheological bitumen properties. Rutting and fatigue cracking are the major distresses that lead to permanent failures in pavement construction. Influence of crumb rubber modifier (CRM) on rheological properties of bitumen binder such as improvement of high and intermediate temperatures is investigated in the binder's fatigue and rutting resistance through physical-rheological changes in this research. The bitumen binders were aged by rolling thin film oven (RTFOT) to simulate short-term aging and pressure aging vessel (PAV) to simulate long-term aging. The effects of aging on the rheological and physical properties of bitumen binders were studied conducting dynamic shear rheometer test (DSR), Brookfield viscometer test, softening point test, and penetration test. The results showed that the use of rubberised bitumen binder reduces the aging effect on physical and rheological properties of the bitumen binder as illustrated through lower aging index of viscosity, lower aging index of G/sinÎ´, and an increase in Tan Î´ with crumb rubber modifier content increasing, indicating that the crumb rubber might improve the aging resistance of rubberised bitumen binder. In addition, the results showed that the softening point increment (Î�S) and penetration aging ratio (PAR) of the rubberised bitumen binder decreased significantly due to crumb rubber modification. Furthermore, the higher crumb rubber content, the lower G'sinÎ´ after PAV aging, which led to higher resistance to fatigue cracking bitumen. Â© 2013 Asim Hassan Ali et al.
format	Article
author	Ali, A.H. Mashaan, N.S. Karim, M.R.
author_facet	Ali, A.H. Mashaan, N.S. Karim, M.R.
author_sort	Ali, A.H.
title	Investigations of physical and rheological properties of aged rubberised bitumen
title_short	Investigations of physical and rheological properties of aged rubberised bitumen
title_full	Investigations of physical and rheological properties of aged rubberised bitumen
title_fullStr	Investigations of physical and rheological properties of aged rubberised bitumen
title_full_unstemmed	Investigations of physical and rheological properties of aged rubberised bitumen
title_sort	investigations of physical and rheological properties of aged rubberised bitumen
publishDate	2013
url	http://www.scopus.com/inward/record.url?eid=2-s2.0-84874911912&partnerID=40&md5=ceba45813d1aef95f0c02ab71bf07eee http://www.hindawi.com/journals/amse/2013/239036/abs/ http://www.scopus.com/inward/record.url?eid=2-s2.0-84874911912&partnerID=40&md5=ceba45813d1aef95f0c02ab71bf07eee http://www.hindawi.com/journals/amse/2013/239036/abs/ http://eprints.um.edu.my/8755/1/Investigations_of_physical_and_rheological_properties_of_aged_rubberised_bitumen.pdf
first_indexed	2018-09-06T05:36:57Z
last_indexed	2018-09-06T05:36:57Z
_version_	1610835262090248192

Investigations of physical and rheological properties of aged rubberised bitumen

Similar Items