Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers
The filler-bitumen interaction mechanism is one of the most essential phases for comprehending the asphalt mixture's performance. However, despite numerous studies, in-depth knowledge of filler-bitumen reciprocity at a microscale level is yet to be ascertained. The goal of this research is to g...
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Format: | Article |
Language: | English |
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KeAi Communications Co., Ltd.
2023-03-01
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Series: | Journal of Road Engineering |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S209704982300001X |
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author | Najib Mukhtar Mohd Rosli Mohd Hasan Hanizah Osman Zainiah Mohd Zin Khairul Anuar Shariff Nur Izzi Md. Yusoff Ashiru Sani |
author_facet | Najib Mukhtar Mohd Rosli Mohd Hasan Hanizah Osman Zainiah Mohd Zin Khairul Anuar Shariff Nur Izzi Md. Yusoff Ashiru Sani |
author_sort | Najib Mukhtar |
collection | DOAJ |
description | The filler-bitumen interaction mechanism is one of the most essential phases for comprehending the asphalt mixture's performance. However, despite numerous studies, in-depth knowledge of filler-bitumen reciprocity at a microscale level is yet to be ascertained. The goal of this research is to gain a better understanding of the filler-bitumen microscale interaction in terms of the synergy and coaction between the physicochemical and rheological performance of mastics due to filler inclusions. The rheological properties of two sustainable mastics, dolomite powder (DP) and lime kiln dust (LKD), together with a neat PEN 60/70 binder, were analysed based on a temperature sweep at elevated temperature conditions. Meanwhile, frequency sweep and multiple stress creep recovery (MSCR) tests were also conducted at pavement serviceability temperature using the dynamic shear rheometer (DSR). Physicochemical tests using a scanning electron microscope (SEM) and energy dispersive X-rays (EDX) were conducted to analyse the impact of parameters such as particle shape, grain size, texture, and chemical compositions. The DSR test results showcased how the incorporation of fillers in asphalt binder considerably improved the performance of the binder in terms of rutting and fatigue. Likewise, its strain and non-recoverable compliance parameters were substantially reduced at higher filler and binder concentrations. Physical filler attributes of low rigden voids (R.V), high fineness modulus (FM), and high specific surface area (SSA) led to greater interfacial stiffness and elasticity in LKD mastics compared to DP mastics at different loading frequencies and temperature levels. The SEM/EDX results also indicated that the elemental calcium and carbon composition of each filler component, together with its grain morphology, strongly influenced its rheological performance. |
first_indexed | 2024-03-12T14:36:50Z |
format | Article |
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institution | Directory Open Access Journal |
issn | 2097-0498 |
language | English |
last_indexed | 2024-03-12T14:36:50Z |
publishDate | 2023-03-01 |
publisher | KeAi Communications Co., Ltd. |
record_format | Article |
series | Journal of Road Engineering |
spelling | doaj.art-0c37ca5d759f4d17ad0183bb1df4222a2023-08-17T04:27:29ZengKeAi Communications Co., Ltd.Journal of Road Engineering2097-04982023-03-013198112Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillersNajib Mukhtar0Mohd Rosli Mohd Hasan1Hanizah Osman2Zainiah Mohd Zin3Khairul Anuar Shariff4Nur Izzi Md. Yusoff5Ashiru Sani6School of Civil Engineering, Universiti Sains Malaysia (Engineering Campus), Nibong Tebal 14300, Penang, Malaysia; Department of Civil Engineering, Bayero University Kano, Kabuga 700241 Kano, NigeriaSchool of Civil Engineering, Universiti Sains Malaysia (Engineering Campus), Nibong Tebal 14300, Penang, Malaysia; Corresponding author.School of Civil Engineering, Universiti Sains Malaysia (Engineering Campus), Nibong Tebal 14300, Penang, MalaysiaSchool of Civil Engineering, Universiti Sains Malaysia (Engineering Campus), Nibong Tebal 14300, Penang, MalaysiaSchool of Materials and Mineral Resources Engineering, Universiti Sains Malaysia (Engineering Campus), Nibong Tebal 14300, Penang, MalaysiaDepartment of Civil Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Selangor Darul Ehsan 43600, MalaysiaDepartment of Civil Engineering, Kano University of Science and Technology, Kano 3244, NigeriaThe filler-bitumen interaction mechanism is one of the most essential phases for comprehending the asphalt mixture's performance. However, despite numerous studies, in-depth knowledge of filler-bitumen reciprocity at a microscale level is yet to be ascertained. The goal of this research is to gain a better understanding of the filler-bitumen microscale interaction in terms of the synergy and coaction between the physicochemical and rheological performance of mastics due to filler inclusions. The rheological properties of two sustainable mastics, dolomite powder (DP) and lime kiln dust (LKD), together with a neat PEN 60/70 binder, were analysed based on a temperature sweep at elevated temperature conditions. Meanwhile, frequency sweep and multiple stress creep recovery (MSCR) tests were also conducted at pavement serviceability temperature using the dynamic shear rheometer (DSR). Physicochemical tests using a scanning electron microscope (SEM) and energy dispersive X-rays (EDX) were conducted to analyse the impact of parameters such as particle shape, grain size, texture, and chemical compositions. The DSR test results showcased how the incorporation of fillers in asphalt binder considerably improved the performance of the binder in terms of rutting and fatigue. Likewise, its strain and non-recoverable compliance parameters were substantially reduced at higher filler and binder concentrations. Physical filler attributes of low rigden voids (R.V), high fineness modulus (FM), and high specific surface area (SSA) led to greater interfacial stiffness and elasticity in LKD mastics compared to DP mastics at different loading frequencies and temperature levels. The SEM/EDX results also indicated that the elemental calcium and carbon composition of each filler component, together with its grain morphology, strongly influenced its rheological performance.http://www.sciencedirect.com/science/article/pii/S209704982300001XAsphalt masticsIndustrial by-productWaste recyclingSustainable material consumptionRheological behaviourChemical characterisation |
spellingShingle | Najib Mukhtar Mohd Rosli Mohd Hasan Hanizah Osman Zainiah Mohd Zin Khairul Anuar Shariff Nur Izzi Md. Yusoff Ashiru Sani Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers Journal of Road Engineering Asphalt mastics Industrial by-product Waste recycling Sustainable material consumption Rheological behaviour Chemical characterisation |
title | Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers |
title_full | Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers |
title_fullStr | Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers |
title_full_unstemmed | Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers |
title_short | Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers |
title_sort | rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers |
topic | Asphalt mastics Industrial by-product Waste recycling Sustainable material consumption Rheological behaviour Chemical characterisation |
url | http://www.sciencedirect.com/science/article/pii/S209704982300001X |
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