Effect of Various Metal Hydroxide Flame Retardants on the Rheological Properties of Asphalt Binder
Metal hydroxide has been widely used as flame retardant to reduce the hazards of tunnel fire, however, few researches investigate its effect on the rheological properties of asphalt binder systemically. This study explores and compares the effect and mechanisms of magnesium hydroxide (MH), aluminium...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2019-06-01
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| Series: | Medžiagotyra |
| Subjects: | |
| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/21572 |
| _version_ | 1818700939446452224 |
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| author | Lingzhu GU Tianhang ZHANG Kai ZHU Daquan TANG Ke WU |
| author_facet | Lingzhu GU Tianhang ZHANG Kai ZHU Daquan TANG Ke WU |
| author_sort | Lingzhu GU |
| collection | DOAJ |
| description | Metal hydroxide has been widely used as flame retardant to reduce the hazards of tunnel fire, however, few researches investigate its effect on the rheological properties of asphalt binder systemically. This study explores and compares the effect and mechanisms of magnesium hydroxide (MH), aluminium hydroxide (ATH), hydrated lime (HL), and layer double hydroxides (LDHs) on the rutting resistance, anti-aging resistance, as well as the thermal cracking resistance of asphalt binder. Rotational viscosity (RV) test, dynamic shear rheometer (DSR) test, and bending beam rheometer (BBR) test are involved in the project. Test results indicate: (1) the addition of metal hydroxide generally improves the rutting resistance of asphalt binder during high temperatures due to the typical filler effect, while weakens the resistance to thermal cracking of binder at low temperatures because of the stress concentration; (2) HL and LDHs enhance the anti-aging resistance of asphalt binder; (3) LDHs modified binder, which is proved with better rheological properties, including great rutting resistance, anti-aging resistance and passable resistance to thermal cracking, is recommended for further use. However, the high procurement price is still a big obstacle for its wider application.
DOI: http://dx.doi.org/10.5755/j01.ms.25.3.21572 |
| first_indexed | 2024-12-17T15:12:55Z |
| format | Article |
| id | doaj.art-75b38c2bdadb48eba8ea9f8c94357afc |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-17T15:12:55Z |
| publishDate | 2019-06-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-75b38c2bdadb48eba8ea9f8c94357afc2022-12-21T21:43:37ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892019-06-0125334835510.5755/j01.ms.25.3.2157221572Effect of Various Metal Hydroxide Flame Retardants on the Rheological Properties of Asphalt BinderLingzhu GUTianhang ZHANGKai ZHUDaquan TANGKe WUMetal hydroxide has been widely used as flame retardant to reduce the hazards of tunnel fire, however, few researches investigate its effect on the rheological properties of asphalt binder systemically. This study explores and compares the effect and mechanisms of magnesium hydroxide (MH), aluminium hydroxide (ATH), hydrated lime (HL), and layer double hydroxides (LDHs) on the rutting resistance, anti-aging resistance, as well as the thermal cracking resistance of asphalt binder. Rotational viscosity (RV) test, dynamic shear rheometer (DSR) test, and bending beam rheometer (BBR) test are involved in the project. Test results indicate: (1) the addition of metal hydroxide generally improves the rutting resistance of asphalt binder during high temperatures due to the typical filler effect, while weakens the resistance to thermal cracking of binder at low temperatures because of the stress concentration; (2) HL and LDHs enhance the anti-aging resistance of asphalt binder; (3) LDHs modified binder, which is proved with better rheological properties, including great rutting resistance, anti-aging resistance and passable resistance to thermal cracking, is recommended for further use. However, the high procurement price is still a big obstacle for its wider application. DOI: http://dx.doi.org/10.5755/j01.ms.25.3.21572http://matsc.ktu.lt/index.php/MatSc/article/view/21572asphalt bindermetal hydroxiderheological propertiessuperpave |
| spellingShingle | Lingzhu GU Tianhang ZHANG Kai ZHU Daquan TANG Ke WU Effect of Various Metal Hydroxide Flame Retardants on the Rheological Properties of Asphalt Binder Medžiagotyra asphalt binder metal hydroxide rheological properties superpave |
| title | Effect of Various Metal Hydroxide Flame Retardants on the Rheological Properties of Asphalt Binder |
| title_full | Effect of Various Metal Hydroxide Flame Retardants on the Rheological Properties of Asphalt Binder |
| title_fullStr | Effect of Various Metal Hydroxide Flame Retardants on the Rheological Properties of Asphalt Binder |
| title_full_unstemmed | Effect of Various Metal Hydroxide Flame Retardants on the Rheological Properties of Asphalt Binder |
| title_short | Effect of Various Metal Hydroxide Flame Retardants on the Rheological Properties of Asphalt Binder |
| title_sort | effect of various metal hydroxide flame retardants on the rheological properties of asphalt binder |
| topic | asphalt binder metal hydroxide rheological properties superpave |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/21572 |
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