Interlayer Working Conditions Classification and Treatment Measures of Airport Asphalt Pavement Overlay
The bonding strength between the overlays of an airport asphalt pavement directly affects its service life. In this study, a finite element model of asphalt overlay on airport pavement of Juba Airport in South Sudan was established, and the elastic modulus of overlay, thickness of overlay, running s...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Advanced Transportation |
| Online Access: | http://dx.doi.org/10.1155/2019/9646091 |
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| _version_ | 1832549376721944576 |
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| author | Hongyu Ye Xuancang Wang Naren Fang Ziyuan Su Xiaowen Sun |
| author_facet | Hongyu Ye Xuancang Wang Naren Fang Ziyuan Su Xiaowen Sun |
| author_sort | Hongyu Ye |
| collection | DOAJ |
| description | The bonding strength between the overlays of an airport asphalt pavement directly affects its service life. In this study, a finite element model of asphalt overlay on airport pavement of Juba Airport in South Sudan was established, and the elastic modulus of overlay, thickness of overlay, running state of aircraft, variation trend of interlayer shear stress under the action of load and temperature were obtained. The AHP-entropy method was used to calculate the combined weight of each influencing factor. The climate in hot and humid areas was further zoned, and a comprehensive classification of airport asphalt pavement overlay between hot and humid tropics was obtained. Four interlayer treatment measures (asphalt precoating, two oils and one aggregate, geotextile, and geogrid) and three interlayer materials (SBS-modified asphalt, ordinary hot asphalt, and SBS-modified emulsified asphalt) were designed and tested. Through shear test, wheel-load fatigue test, and pressurized seepage test, the variation trends of interlayer shear, crack resistance, and waterproofing under different combination schemes were obtained. Finally, the matching relationship between different working conditions and interlayer treatment measures was established. The results show that the actual working conditions of an airport asphalt pavement can be divided into three levels. Combined with the performance ranking of different materials and interlayer treatment measures, the recommended interlayer treatment measures for comprehensive classifications I, II, and III are two oils and one material + SBS-modified asphalt, asphalt precoating, or geogrid + SBS-modified emulsified asphalt or ordinary hot asphalt, and geotextile + ordinary hot asphalt, respectively. The working conditions in Juba Airport in South Sudan can be classified as comprehensive classification II, the recommended treatment measures for geogrid + ordinary hot asphalt. |
| format | Article |
| id | doaj-art-57b0cb49104049fb9916ea47863a454e |
| institution | Kabale University |
| issn | 0197-6729 2042-3195 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Advanced Transportation |
| spelling | doaj-art-57b0cb49104049fb9916ea47863a454e2025-02-03T06:11:22ZengWileyJournal of Advanced Transportation0197-67292042-31952019-01-01201910.1155/2019/96460919646091Interlayer Working Conditions Classification and Treatment Measures of Airport Asphalt Pavement OverlayHongyu Ye0Xuancang Wang1Naren Fang2Ziyuan Su3Xiaowen Sun4School of Highway Engineering, Chang’an University, Xi’an 710064, ChinaSchool of Highway Engineering, Chang’an University, Xi’an 710064, ChinaSchool of Highway Engineering, Chang’an University, Xi’an 710064, ChinaHenan Institute of Urban Planning and Design, Zhengzhou, Henan 450000, ChinaCCCC FHDI Engineering Co., Ltd, Guangzhou 510230, ChinaThe bonding strength between the overlays of an airport asphalt pavement directly affects its service life. In this study, a finite element model of asphalt overlay on airport pavement of Juba Airport in South Sudan was established, and the elastic modulus of overlay, thickness of overlay, running state of aircraft, variation trend of interlayer shear stress under the action of load and temperature were obtained. The AHP-entropy method was used to calculate the combined weight of each influencing factor. The climate in hot and humid areas was further zoned, and a comprehensive classification of airport asphalt pavement overlay between hot and humid tropics was obtained. Four interlayer treatment measures (asphalt precoating, two oils and one aggregate, geotextile, and geogrid) and three interlayer materials (SBS-modified asphalt, ordinary hot asphalt, and SBS-modified emulsified asphalt) were designed and tested. Through shear test, wheel-load fatigue test, and pressurized seepage test, the variation trends of interlayer shear, crack resistance, and waterproofing under different combination schemes were obtained. Finally, the matching relationship between different working conditions and interlayer treatment measures was established. The results show that the actual working conditions of an airport asphalt pavement can be divided into three levels. Combined with the performance ranking of different materials and interlayer treatment measures, the recommended interlayer treatment measures for comprehensive classifications I, II, and III are two oils and one material + SBS-modified asphalt, asphalt precoating, or geogrid + SBS-modified emulsified asphalt or ordinary hot asphalt, and geotextile + ordinary hot asphalt, respectively. The working conditions in Juba Airport in South Sudan can be classified as comprehensive classification II, the recommended treatment measures for geogrid + ordinary hot asphalt.http://dx.doi.org/10.1155/2019/9646091 |
| spellingShingle | Hongyu Ye Xuancang Wang Naren Fang Ziyuan Su Xiaowen Sun Interlayer Working Conditions Classification and Treatment Measures of Airport Asphalt Pavement Overlay Journal of Advanced Transportation |
| title | Interlayer Working Conditions Classification and Treatment Measures of Airport Asphalt Pavement Overlay |
| title_full | Interlayer Working Conditions Classification and Treatment Measures of Airport Asphalt Pavement Overlay |
| title_fullStr | Interlayer Working Conditions Classification and Treatment Measures of Airport Asphalt Pavement Overlay |
| title_full_unstemmed | Interlayer Working Conditions Classification and Treatment Measures of Airport Asphalt Pavement Overlay |
| title_short | Interlayer Working Conditions Classification and Treatment Measures of Airport Asphalt Pavement Overlay |
| title_sort | interlayer working conditions classification and treatment measures of airport asphalt pavement overlay |
| url | http://dx.doi.org/10.1155/2019/9646091 |
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