Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders
This study was conducted to investigate the performance characteristics of nanoclay- and chemical warm-mix asphalt (WMA) additive-modified asphalt binders in terms of their chemical, morphology, rheological and surface energy properties in comparison to conventional asphalt binder. Both the nanoclay...
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| Format: | Article |
| Language: | en |
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Elsevier Ltd.
2016
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| Online Access: | http://eprints.uthm.edu.my/3888/1/AJ%202016%20%2817%29.pdf http://eprints.uthm.edu.my/3888/ http://dx.doi.org/10.1016/j.conbuildmat.2016.03.068 |
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| author | Abdullah, Mohd Ezree Hainin, Mohd Rosli Md. Yusoff, Nur Izzi Zamhari, Kemas Ahmad Hassan, Norhidayah |
| author_facet | Abdullah, Mohd Ezree Hainin, Mohd Rosli Md. Yusoff, Nur Izzi Zamhari, Kemas Ahmad Hassan, Norhidayah |
| author_sort | Abdullah, Mohd Ezree |
| building | UTHM Library |
| collection | Institutional Repository |
| content_provider | Universiti Tun Hussein Onn Malaysia |
| content_source | UTHM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | This study was conducted to investigate the performance characteristics of nanoclay- and chemical warm-mix asphalt (WMA) additive-modified asphalt binders in terms of their chemical, morphology, rheological and surface energy properties in comparison to conventional asphalt binder. Both the nanoclay modified asphalt binder (NCMB B) and the chemical WMA additive modified asphalt binder (CWAA) were artificially aged under short-term and long-term aging conditions prior to evaluation. The chemical and morphological properties were measured with Fourier Transform Infrared (FTIR) spectroscopy and Field-Emission Scanning Electron Microscopy (FE-SEM) respectively. Rheological eval-uations were conducted to determine binder’s behavior under short-term aging in terms of frequency sweep, temperature sweep, and creep recovery tests by utilizing the dynamic shear rheometer (DSR) machine. Emission test was also conducted on the unmodified and modified WMA mixtures to estimate the gaseous pollutants emitted during their manufacture. FTIR spectroscopy results showed that the addition of WMA modifiers into asphalt binder could delay and weaken the oxidation reaction of the binder which in turn improved the aging process. However, the physical structure did not seem to show any changes after undergoing long term aging. The use of NCMB B 4% (by weight of asphalt binder) seemed to produce better resistance towards rutting when compared to CWAA 1%, 2% and 3% for unaged, and short- and long-term aging test conditions. The modified binders exhibit significantly higher surface energy and hence produced good adhesion between aggregates, which imply increased resistance toward moisture-induced damage. This study also revealed that the manufacture of WMA mixtures reduced up to 50% of the pollutants emitted during mixing in laboratory. |
| format | Article |
| id | my.uthm.eprints-3888 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | en |
| publishDate | 2016 |
| publisher | Elsevier Ltd. |
| record_format | eprints |
| spelling | my.uthm.eprints-38882021-11-22T06:20:17Z http://eprints.uthm.edu.my/3888/ Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders Abdullah, Mohd Ezree Hainin, Mohd Rosli Md. Yusoff, Nur Izzi Zamhari, Kemas Ahmad Hassan, Norhidayah TE250-278.8 Pavements and paved roads This study was conducted to investigate the performance characteristics of nanoclay- and chemical warm-mix asphalt (WMA) additive-modified asphalt binders in terms of their chemical, morphology, rheological and surface energy properties in comparison to conventional asphalt binder. Both the nanoclay modified asphalt binder (NCMB B) and the chemical WMA additive modified asphalt binder (CWAA) were artificially aged under short-term and long-term aging conditions prior to evaluation. The chemical and morphological properties were measured with Fourier Transform Infrared (FTIR) spectroscopy and Field-Emission Scanning Electron Microscopy (FE-SEM) respectively. Rheological eval-uations were conducted to determine binder’s behavior under short-term aging in terms of frequency sweep, temperature sweep, and creep recovery tests by utilizing the dynamic shear rheometer (DSR) machine. Emission test was also conducted on the unmodified and modified WMA mixtures to estimate the gaseous pollutants emitted during their manufacture. FTIR spectroscopy results showed that the addition of WMA modifiers into asphalt binder could delay and weaken the oxidation reaction of the binder which in turn improved the aging process. However, the physical structure did not seem to show any changes after undergoing long term aging. The use of NCMB B 4% (by weight of asphalt binder) seemed to produce better resistance towards rutting when compared to CWAA 1%, 2% and 3% for unaged, and short- and long-term aging test conditions. The modified binders exhibit significantly higher surface energy and hence produced good adhesion between aggregates, which imply increased resistance toward moisture-induced damage. This study also revealed that the manufacture of WMA mixtures reduced up to 50% of the pollutants emitted during mixing in laboratory. Elsevier Ltd. 2016 Article PeerReviewed text en http://eprints.uthm.edu.my/3888/1/AJ%202016%20%2817%29.pdf Abdullah, Mohd Ezree and Hainin, Mohd Rosli and Md. Yusoff, Nur Izzi and Zamhari, Kemas Ahmad and Hassan, Norhidayah (2016) Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders. Construction and Building Materials, 113. pp. 488-497. ISSN 0950-0618 http://dx.doi.org/10.1016/j.conbuildmat.2016.03.068 |
| spellingShingle | TE250-278.8 Pavements and paved roads Abdullah, Mohd Ezree Hainin, Mohd Rosli Md. Yusoff, Nur Izzi Zamhari, Kemas Ahmad Hassan, Norhidayah Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders |
| title | Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders |
| title_full | Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders |
| title_fullStr | Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders |
| title_full_unstemmed | Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders |
| title_short | Laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders |
| title_sort | laboratory evaluation on the characteristics and pollutant emissions of nanoclay and chemical warm mix asphalt modified binders |
| topic | TE250-278.8 Pavements and paved roads |
| url | http://eprints.uthm.edu.my/3888/1/AJ%202016%20%2817%29.pdf http://eprints.uthm.edu.my/3888/ http://dx.doi.org/10.1016/j.conbuildmat.2016.03.068 |
| url_provider | http://eprints.uthm.edu.my/ |