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...

Full description

Saved in:
Bibliographic Details
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:
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
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.105213
record_format eprints
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 13.209306