Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives
In the effort to promote the construction of green pavement the asphalt concrete industry has been mak-ing consistent effort to use warm-mix asphalt (WMA) in their construction. The objective of this study was to improve the properties of the asphalt binders through the addition of nanoclays and che...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Ltd.
2016
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/3857/1/AJ%202016%20%2812%29.pdf |
| _version_ | 1796868913684807680 |
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| author | Abdullah, Mohd Ezree Zamhari, Kemas Ahmad Hainin, Mohd Rosli Oluwasola, Ebenezer Akin Abdul Hassan, Norhidayah Ahmad, Nur Izzi |
| author_facet | Abdullah, Mohd Ezree Zamhari, Kemas Ahmad Hainin, Mohd Rosli Oluwasola, Ebenezer Akin Abdul Hassan, Norhidayah Ahmad, Nur Izzi |
| author_sort | Abdullah, Mohd Ezree |
| collection | UTHM |
| description | In the effort to promote the construction of green pavement the asphalt concrete industry has been mak-ing consistent effort to use warm-mix asphalt (WMA) in their construction. The objective of this study was to improve the properties of the asphalt binders through the addition of nanoclays and chemical WMA additive. An asphalt binder of 80/100 penetration grade was modified with different percentages of Nanoclay A (montmorillonite clay surface modified with 35–45 wt.% dimethyl dialkyl (C14–C18) amine), Nanoclay B (montmorillonite clay surface modified with 35–45 wt.% octadecylamine, and 0.5–5.0 wt.% aminopropyl-triethoxysilane), and chemical WMA additive (fatty polyamines polymer non-ionic component). After modification, the asphalt binders were named Nanoclay A modified asphalt binder (NCMB A), Nanoclay B modified asphalt binder (NCMB B), and chemical WMA modified asphalt binder (CWAA). The rheological characteristics of the unmodified and modified asphalt binders were evaluated using the rotational viscosity, dynamic shear rheometer, and bending beam rheometer tests. Results of the tests showed that NCMB B and CWAA significantly reduced mixing and compaction tem-peratures. However, only NCMB B showed a significant increase in rutting and fatigue resistance when compared with base asphalt binder. A change in chemical bond was also observed in the tested binders after long-term aging, which suggests that the addition of modifier could delay the aging process. © 2016 Elsevier Ltd. All rights reserved. |
| first_indexed | 2024-03-05T21:46:57Z |
| format | Article |
| id | uthm.eprints-3857 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:46:57Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd. |
| record_format | dspace |
| spelling | uthm.eprints-38572021-11-22T04:25:39Z http://eprints.uthm.edu.my/3857/ Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives Abdullah, Mohd Ezree Zamhari, Kemas Ahmad Hainin, Mohd Rosli Oluwasola, Ebenezer Akin Abdul Hassan, Norhidayah Ahmad, Nur Izzi TA401-492 Materials of engineering and construction. Mechanics of materials TA703-712 Engineering geology. Rock mechanics. Soil mechanics. TE250-278.8 Pavements and paved roads In the effort to promote the construction of green pavement the asphalt concrete industry has been mak-ing consistent effort to use warm-mix asphalt (WMA) in their construction. The objective of this study was to improve the properties of the asphalt binders through the addition of nanoclays and chemical WMA additive. An asphalt binder of 80/100 penetration grade was modified with different percentages of Nanoclay A (montmorillonite clay surface modified with 35–45 wt.% dimethyl dialkyl (C14–C18) amine), Nanoclay B (montmorillonite clay surface modified with 35–45 wt.% octadecylamine, and 0.5–5.0 wt.% aminopropyl-triethoxysilane), and chemical WMA additive (fatty polyamines polymer non-ionic component). After modification, the asphalt binders were named Nanoclay A modified asphalt binder (NCMB A), Nanoclay B modified asphalt binder (NCMB B), and chemical WMA modified asphalt binder (CWAA). The rheological characteristics of the unmodified and modified asphalt binders were evaluated using the rotational viscosity, dynamic shear rheometer, and bending beam rheometer tests. Results of the tests showed that NCMB B and CWAA significantly reduced mixing and compaction tem-peratures. However, only NCMB B showed a significant increase in rutting and fatigue resistance when compared with base asphalt binder. A change in chemical bond was also observed in the tested binders after long-term aging, which suggests that the addition of modifier could delay the aging process. © 2016 Elsevier Ltd. All rights reserved. Elsevier Ltd. 2016 Article PeerReviewed text en http://eprints.uthm.edu.my/3857/1/AJ%202016%20%2812%29.pdf Abdullah, Mohd Ezree and Zamhari, Kemas Ahmad and Hainin, Mohd Rosli and Oluwasola, Ebenezer Akin and Abdul Hassan, Norhidayah and Ahmad, Nur Izzi (2016) Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives. Construction and Building Materials, 112. pp. 232-240. ISSN 0950-0618 http://dx.doi.org/10.1016/j.conbuildmat.2016.02.089 |
| spellingShingle | TA401-492 Materials of engineering and construction. Mechanics of materials TA703-712 Engineering geology. Rock mechanics. Soil mechanics. TE250-278.8 Pavements and paved roads Abdullah, Mohd Ezree Zamhari, Kemas Ahmad Hainin, Mohd Rosli Oluwasola, Ebenezer Akin Abdul Hassan, Norhidayah Ahmad, Nur Izzi Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives |
| title | Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives |
| title_full | Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives |
| title_fullStr | Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives |
| title_full_unstemmed | Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives |
| title_short | Engineering properties of asphalt binders containing nanoclay and chemical warm-mix asphalt additives |
| title_sort | engineering properties of asphalt binders containing nanoclay and chemical warm mix asphalt additives |
| topic | TA401-492 Materials of engineering and construction. Mechanics of materials TA703-712 Engineering geology. Rock mechanics. Soil mechanics. TE250-278.8 Pavements and paved roads |
| url | http://eprints.uthm.edu.my/3857/1/AJ%202016%20%2812%29.pdf |
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