Material innovation preparation and performance study of semi-flexible pavement materials
Expounding the internal stability and rutting resistance of semi-flexible materials under different porosity can predict the relationship between pavement performance and material porosity. This study designed four porosities of 18%, 20%, 22%, and 25% to prepare the base asphalt mixture. Then the ce...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522004879 |
| _version_ | 1811342129827414016 |
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| author | Zhu Zhang Jiusu Li Fujian Ni |
| author_facet | Zhu Zhang Jiusu Li Fujian Ni |
| author_sort | Zhu Zhang |
| collection | DOAJ |
| description | Expounding the internal stability and rutting resistance of semi-flexible materials under different porosity can predict the relationship between pavement performance and material porosity. This study designed four porosities of 18%, 20%, 22%, and 25% to prepare the base asphalt mixture. Then the cement mortar was poured into the base asphalt mixture and cured for seven days under ambient temperature and humidity conditions to prepare semi-flexible pavement material. The stress-strain level of semi-flexible pavement(SFP) was analyzed by finite element software under the 20% porosity; the rutting test was used to evaluate the anti-rutting performance of SFP under different porosity. The orthogonal experiment indicated that the optimal ratio of cement mortar was 0.6 water-cement ratio, 15% mineral powder, and 35% sand. The finite element results further showed that the internal shear stress mainly causes the internal displacement and strain of the material. The shrinkage of the cement mortar was 0.168%, and the dynamic stability of SFP with porosity of 18%, 20%, 22%, and 25% were 6058, 7325, 11,053, and 12,353, respectively. The porosity and filling of cement mortar have a positive trend with the anti-rutting performance of semi-flexible pavement materials. |
| first_indexed | 2024-04-13T19:06:03Z |
| format | Article |
| id | doaj.art-8b44a24640884c9ca8e78b768ea7b516 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-04-13T19:06:03Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-8b44a24640884c9ca8e78b768ea7b5162022-12-22T02:33:58ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01355Material innovation preparation and performance study of semi-flexible pavement materialsZhu Zhang0Jiusu Li1Fujian Ni2School of Transportation, Southeast University, Nanjing 210096, Jiangsu, ChinaState Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, Hunan, ChinaSchool of Transportation, Southeast University, Nanjing 210096, Jiangsu, China; Correspondence to: School of Transportation, Southeast University, Nanjing 210096, People's Republic of China.Expounding the internal stability and rutting resistance of semi-flexible materials under different porosity can predict the relationship between pavement performance and material porosity. This study designed four porosities of 18%, 20%, 22%, and 25% to prepare the base asphalt mixture. Then the cement mortar was poured into the base asphalt mixture and cured for seven days under ambient temperature and humidity conditions to prepare semi-flexible pavement material. The stress-strain level of semi-flexible pavement(SFP) was analyzed by finite element software under the 20% porosity; the rutting test was used to evaluate the anti-rutting performance of SFP under different porosity. The orthogonal experiment indicated that the optimal ratio of cement mortar was 0.6 water-cement ratio, 15% mineral powder, and 35% sand. The finite element results further showed that the internal shear stress mainly causes the internal displacement and strain of the material. The shrinkage of the cement mortar was 0.168%, and the dynamic stability of SFP with porosity of 18%, 20%, 22%, and 25% were 6058, 7325, 11,053, and 12,353, respectively. The porosity and filling of cement mortar have a positive trend with the anti-rutting performance of semi-flexible pavement materials.http://www.sciencedirect.com/science/article/pii/S2214509522004879Cement mortarSemi-flexible pavement materialsRutting testFinite element analysisOrthogonal experiment |
| spellingShingle | Zhu Zhang Jiusu Li Fujian Ni Material innovation preparation and performance study of semi-flexible pavement materials Case Studies in Construction Materials Cement mortar Semi-flexible pavement materials Rutting test Finite element analysis Orthogonal experiment |
| title | Material innovation preparation and performance study of semi-flexible pavement materials |
| title_full | Material innovation preparation and performance study of semi-flexible pavement materials |
| title_fullStr | Material innovation preparation and performance study of semi-flexible pavement materials |
| title_full_unstemmed | Material innovation preparation and performance study of semi-flexible pavement materials |
| title_short | Material innovation preparation and performance study of semi-flexible pavement materials |
| title_sort | material innovation preparation and performance study of semi flexible pavement materials |
| topic | Cement mortar Semi-flexible pavement materials Rutting test Finite element analysis Orthogonal experiment |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522004879 |
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