Microscopic action and rheological properties of reinforced modified asphalt with varying fiber content
Traditional asphalt pavement is prone to rutting, looseness, and other issues during usage resulting in overall poor durability. The service life of asphalt pavement may be improved, however, by targeted modifications. The modification mechanism and strengthening effect of polyester fiber and straw...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
|
| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523000037 |
| _version_ | 1827920546400043008 |
|---|---|
| author | Keke Chen Haitao Zhang Yongcai Gu Song Zhao |
| author_facet | Keke Chen Haitao Zhang Yongcai Gu Song Zhao |
| author_sort | Keke Chen |
| collection | DOAJ |
| description | Traditional asphalt pavement is prone to rutting, looseness, and other issues during usage resulting in overall poor durability. The service life of asphalt pavement may be improved, however, by targeted modifications. The modification mechanism and strengthening effect of polyester fiber and straw fiber on asphalt were investigated in this study in an effort to optimize the anti-aging and anti-fatigue performance of asphalt pavement. Molecular dynamics simulation, basic performance testing, dynamic shear rheological testing, and bending beam rheological testing were conducted on fiber-modified asphalt to observe the interaction modes between the asphalt components and its applicable conditions. Fiber appears to have some compatibility with asphalt, which can improve its performance; straw fiber’s ability to modify asphalt at high temperatures is less effective than that of polyester fiber, but it is stronger at low temperatures. Under high-temperature conditions, the optimal dosages of polyester fiber and straw fiber are 3.00 % and 3.00 %, respectively, while at low temperatures, they are 2.00 % and 3.00 %. |
| first_indexed | 2024-03-13T04:12:11Z |
| format | Article |
| id | doaj.art-10eac0a2db9b44518b7b2e22093e8221 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:12:11Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-10eac0a2db9b44518b7b2e22093e82212023-06-21T06:53:23ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01824Microscopic action and rheological properties of reinforced modified asphalt with varying fiber contentKeke Chen0Haitao Zhang1Yongcai Gu2Song Zhao3College of Civil Engineering, Northeast Forestry University, Harbin 150040, ChinaCorresponding authors.; College of Civil Engineering, Northeast Forestry University, Harbin 150040, ChinaCorresponding authors.; College of Civil Engineering, Northeast Forestry University, Harbin 150040, ChinaCollege of Civil Engineering, Northeast Forestry University, Harbin 150040, ChinaTraditional asphalt pavement is prone to rutting, looseness, and other issues during usage resulting in overall poor durability. The service life of asphalt pavement may be improved, however, by targeted modifications. The modification mechanism and strengthening effect of polyester fiber and straw fiber on asphalt were investigated in this study in an effort to optimize the anti-aging and anti-fatigue performance of asphalt pavement. Molecular dynamics simulation, basic performance testing, dynamic shear rheological testing, and bending beam rheological testing were conducted on fiber-modified asphalt to observe the interaction modes between the asphalt components and its applicable conditions. Fiber appears to have some compatibility with asphalt, which can improve its performance; straw fiber’s ability to modify asphalt at high temperatures is less effective than that of polyester fiber, but it is stronger at low temperatures. Under high-temperature conditions, the optimal dosages of polyester fiber and straw fiber are 3.00 % and 3.00 %, respectively, while at low temperatures, they are 2.00 % and 3.00 %.http://www.sciencedirect.com/science/article/pii/S2214509523000037Modified asphaltStraw fiberPolyester fiberRheological propertiesMolecular dynamics |
| spellingShingle | Keke Chen Haitao Zhang Yongcai Gu Song Zhao Microscopic action and rheological properties of reinforced modified asphalt with varying fiber content Case Studies in Construction Materials Modified asphalt Straw fiber Polyester fiber Rheological properties Molecular dynamics |
| title | Microscopic action and rheological properties of reinforced modified asphalt with varying fiber content |
| title_full | Microscopic action and rheological properties of reinforced modified asphalt with varying fiber content |
| title_fullStr | Microscopic action and rheological properties of reinforced modified asphalt with varying fiber content |
| title_full_unstemmed | Microscopic action and rheological properties of reinforced modified asphalt with varying fiber content |
| title_short | Microscopic action and rheological properties of reinforced modified asphalt with varying fiber content |
| title_sort | microscopic action and rheological properties of reinforced modified asphalt with varying fiber content |
| topic | Modified asphalt Straw fiber Polyester fiber Rheological properties Molecular dynamics |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523000037 |
| work_keys_str_mv | AT kekechen microscopicactionandrheologicalpropertiesofreinforcedmodifiedasphaltwithvaryingfibercontent AT haitaozhang microscopicactionandrheologicalpropertiesofreinforcedmodifiedasphaltwithvaryingfibercontent AT yongcaigu microscopicactionandrheologicalpropertiesofreinforcedmodifiedasphaltwithvaryingfibercontent AT songzhao microscopicactionandrheologicalpropertiesofreinforcedmodifiedasphaltwithvaryingfibercontent |