Improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive

Up to the present time, assiduous efforts were devoted to mitigating the development of asphaltic pavement rutting. To this intention, nanotechnology recently received considerable attention to magnify the resistance against such distress. This work elucidated the worthiness of utilizing the industr...

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Autores principales:	Mohammed Q. Ismael, Mohammed Y. Fattah, Abbas F. Jasim
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Asphalt pavement rutting Carbon nanotubes Wheel tracking test Cost analysis Statistical analysis Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/bbd08f5f0f644ce98330f6cb6a1d4ba3
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spelling	oai:doaj.org-article:bbd08f5f0f644ce98330f6cb6a1d4ba32021-11-22T04:21:49ZImproving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive2090-447910.1016/j.asej.2021.02.038https://doaj.org/article/bbd08f5f0f644ce98330f6cb6a1d4ba32021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2090447921001817https://doaj.org/toc/2090-4479Up to the present time, assiduous efforts were devoted to mitigating the development of asphaltic pavement rutting. To this intention, nanotechnology recently received considerable attention to magnify the resistance against such distress. This work elucidated the worthiness of utilizing the industrial carbon nanotubes, CNT, as a strengthening additive. Accordingly, four dosages with an upper limit of 2.0% from this nanoscale material were added to two bitumen grades, 40/50 and 60/70. The modified binders were subjected to several tests including penetration, softening point, viscosity, and rheological properties. Furthermore, sets of cylindrical and slab-shaped specimens containing these binders were fabricated and underwent volumetric analysis, Marshall test in addition to rut measurement by the wheel tracking test. The outcome of this work revealed that higher viscosity bitumen consumes relatively less amount of the CNT with a better rutting performance rate and Marshall stability, whereas the 40/50 grade yielded an increase in rutting resistance by 61.0% and stability by 35.0% at 1.5% of the CNT while the 60/70 grade needed 2.0% of this material to be near these improving values. Regarding the Superpave rutting indicator addressed by G*/sin δ, a continuous ascending tendency was observed by adding the CNT for the basic and aged conditions. The cost analysis results specified the 1.5% of CNT mixed with 40/50 bitumen to be the threshold of economic feasibility, any further dosage or utilizing softer bitumen will omit its viability. All the results have been subjected to a comprehension statistical analysis that produced a significant regression model.Mohammed Q. IsmaelMohammed Y. FattahAbbas F. JasimElsevierarticleAsphalt pavement ruttingCarbon nanotubesWheel tracking testCost analysisStatistical analysisEngineering (General). Civil engineering (General)TA1-2040ENAin Shams Engineering Journal, Vol 12, Iss 4, Pp 3619-3627 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Asphalt pavement rutting Carbon nanotubes Wheel tracking test Cost analysis Statistical analysis Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Asphalt pavement rutting Carbon nanotubes Wheel tracking test Cost analysis Statistical analysis Engineering (General). Civil engineering (General) TA1-2040 Mohammed Q. Ismael Mohammed Y. Fattah Abbas F. Jasim Improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive
description	Up to the present time, assiduous efforts were devoted to mitigating the development of asphaltic pavement rutting. To this intention, nanotechnology recently received considerable attention to magnify the resistance against such distress. This work elucidated the worthiness of utilizing the industrial carbon nanotubes, CNT, as a strengthening additive. Accordingly, four dosages with an upper limit of 2.0% from this nanoscale material were added to two bitumen grades, 40/50 and 60/70. The modified binders were subjected to several tests including penetration, softening point, viscosity, and rheological properties. Furthermore, sets of cylindrical and slab-shaped specimens containing these binders were fabricated and underwent volumetric analysis, Marshall test in addition to rut measurement by the wheel tracking test. The outcome of this work revealed that higher viscosity bitumen consumes relatively less amount of the CNT with a better rutting performance rate and Marshall stability, whereas the 40/50 grade yielded an increase in rutting resistance by 61.0% and stability by 35.0% at 1.5% of the CNT while the 60/70 grade needed 2.0% of this material to be near these improving values. Regarding the Superpave rutting indicator addressed by G*/sin δ, a continuous ascending tendency was observed by adding the CNT for the basic and aged conditions. The cost analysis results specified the 1.5% of CNT mixed with 40/50 bitumen to be the threshold of economic feasibility, any further dosage or utilizing softer bitumen will omit its viability. All the results have been subjected to a comprehension statistical analysis that produced a significant regression model.
format	article
author	Mohammed Q. Ismael Mohammed Y. Fattah Abbas F. Jasim
author_facet	Mohammed Q. Ismael Mohammed Y. Fattah Abbas F. Jasim
author_sort	Mohammed Q. Ismael
title	Improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive
title_short	Improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive
title_full	Improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive
title_fullStr	Improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive
title_full_unstemmed	Improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive
title_sort	improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/bbd08f5f0f644ce98330f6cb6a1d4ba3
work_keys_str_mv	AT mohammedqismael improvingtheruttingresistanceofasphaltpavementmodifiedwiththecarbonnanotubesadditive AT mohammedyfattah improvingtheruttingresistanceofasphaltpavementmodifiedwiththecarbonnanotubesadditive AT abbasfjasim improvingtheruttingresistanceofasphaltpavementmodifiedwiththecarbonnanotubesadditive
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Improving the rutting resistance of asphalt pavement modified with the carbon nanotubes additive

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