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Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive

Natural rubber (NR) in the form of “cup lump” is used to significantly enhance the thermal stability and elasticity of bitumen. Despite these benefits, the paving industry has raised concerns about its increased energy use and carbon emissions when applied in hot mix asphalt (HMA). Warm mix asphalt...

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Main Authors:	Abdulrahman, Suleiman, Alanazi, Fayez, Hainin, Mohd. Rosli, Mohammed Albuaymi, Mohammed Albuaymi, Alanazi, Hani, Adamu, Musa, Azam, Abdelhalim
Format:	Article
Language:	English
Published:	Institute for Ionics 2023
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/105213/1/MohdRosliHainin2023_RheologicalandMorphologicalCharacterizationofCupLump.pdf http://eprints.utm.my/105213/ http://dx.doi.org/10.1007/s13369-023-07710-2
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spelling	my.utm.1052132024-04-17T06:04:25Z http://eprints.utm.my/105213/ Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive Abdulrahman, Suleiman Alanazi, Fayez Hainin, Mohd. Rosli Mohammed Albuaymi, Mohammed Albuaymi Alanazi, Hani Adamu, Musa Azam, Abdelhalim TA Engineering (General). Civil engineering (General) Natural rubber (NR) in the form of “cup lump” is used to significantly enhance the thermal stability and elasticity of bitumen. Despite these benefits, the paving industry has raised concerns about its increased energy use and carbon emissions when applied in hot mix asphalt (HMA). Warm mix asphalt (WMA) was invented to reduce this negative effect. In WMA, an additive is first added to the bitumen, which acts as a surfactant and allows the production and compaction of asphalt mixture at temperatures up to 50 °C less. As a result, the amount of energy consumed and carbon dioxide emissions during asphalt production are considerably reduced. In this study, CLR-modified bitumen (CMB) was blended with five percentages of Evotherm warm mix additive (0.3, 0.4, 0.5, 0.6, and 0.75%), and the properties were examined. According to the findings, the Evotherm modification lowered the viscosity of the binder by 26% and the contact angle by 6°, while the binder’s crack resistance at low temperatures marginally improves. Quantitative analysis from Fourier transform infrared spectra revealed a reduction in C=C stretch, C-O stretch, and C-H absorbance in response to the addition of Evotherm. Also, atomic force microscopy (AFM) scan shows an increase in the number of catana phases with a separation of peri- and para-phases. Only CMB with 0.75% Evotherm possesses 100% aggregate coating with sufficient air void, hence, it was selected as the optimum to be used in producing the warm mix asphalt mixture. Overall, the mixing temperature of the CMB can be lowered by 40 °C. Institute for Ionics 2023 Article PeerReviewed application/pdf en http://eprints.utm.my/105213/1/MohdRosliHainin2023_RheologicalandMorphologicalCharacterizationofCupLump.pdf Abdulrahman, Suleiman and Alanazi, Fayez and Hainin, Mohd. Rosli and Mohammed Albuaymi, Mohammed Albuaymi and Alanazi, Hani and Adamu, Musa and Azam, Abdelhalim (2023) Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive. Arabian Journal for Science and Engineering, 48 (10). pp. 13195-13209. ISSN 2193-567X http://dx.doi.org/10.1007/s13369-023-07710-2 DOI : 10.1007/s13369-023-07710-2
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Abdulrahman, Suleiman Alanazi, Fayez Hainin, Mohd. Rosli Mohammed Albuaymi, Mohammed Albuaymi Alanazi, Hani Adamu, Musa Azam, Abdelhalim Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive
description	Natural rubber (NR) in the form of “cup lump” is used to significantly enhance the thermal stability and elasticity of bitumen. Despite these benefits, the paving industry has raised concerns about its increased energy use and carbon emissions when applied in hot mix asphalt (HMA). Warm mix asphalt (WMA) was invented to reduce this negative effect. In WMA, an additive is first added to the bitumen, which acts as a surfactant and allows the production and compaction of asphalt mixture at temperatures up to 50 °C less. As a result, the amount of energy consumed and carbon dioxide emissions during asphalt production are considerably reduced. In this study, CLR-modified bitumen (CMB) was blended with five percentages of Evotherm warm mix additive (0.3, 0.4, 0.5, 0.6, and 0.75%), and the properties were examined. According to the findings, the Evotherm modification lowered the viscosity of the binder by 26% and the contact angle by 6°, while the binder’s crack resistance at low temperatures marginally improves. Quantitative analysis from Fourier transform infrared spectra revealed a reduction in C=C stretch, C-O stretch, and C-H absorbance in response to the addition of Evotherm. Also, atomic force microscopy (AFM) scan shows an increase in the number of catana phases with a separation of peri- and para-phases. Only CMB with 0.75% Evotherm possesses 100% aggregate coating with sufficient air void, hence, it was selected as the optimum to be used in producing the warm mix asphalt mixture. Overall, the mixing temperature of the CMB can be lowered by 40 °C.
format	Article
author	Abdulrahman, Suleiman Alanazi, Fayez Hainin, Mohd. Rosli Mohammed Albuaymi, Mohammed Albuaymi Alanazi, Hani Adamu, Musa Azam, Abdelhalim
author_facet	Abdulrahman, Suleiman Alanazi, Fayez Hainin, Mohd. Rosli Mohammed Albuaymi, Mohammed Albuaymi Alanazi, Hani Adamu, Musa Azam, Abdelhalim
author_sort	Abdulrahman, Suleiman
title	Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive
title_short	Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive
title_full	Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive
title_fullStr	Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive
title_full_unstemmed	Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive
title_sort	rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive
publisher	Institute for Ionics
publishDate	2023
url	http://eprints.utm.my/105213/1/MohdRosliHainin2023_RheologicalandMorphologicalCharacterizationofCupLump.pdf http://eprints.utm.my/105213/ http://dx.doi.org/10.1007/s13369-023-07710-2
_version_	1797905961491365888
score	13.211869

Rheological and morphological characterization of cup lump rubber-modified bitumen with evotherm additive

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