Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortar
To investigate the impact of mineral fiber modification and dosage on the rheological properties of fiber asphalt mastic, basalt fiber surface roughness was enhanced using nano-SiO _2 solution. Fiber asphalt mastic was prepared with a filler-bitumen ratio of 1.6 and fiber dosages of 0%, 1.3%, 2.6%,...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ad99a4 |
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| author | Haiwei Gao Nanxiang Zheng Xiang Zhang Zhihui Li Zhuohong Cong |
| author_facet | Haiwei Gao Nanxiang Zheng Xiang Zhang Zhihui Li Zhuohong Cong |
| author_sort | Haiwei Gao |
| collection | DOAJ |
| description | To investigate the impact of mineral fiber modification and dosage on the rheological properties of fiber asphalt mastic, basalt fiber surface roughness was enhanced using nano-SiO _2 solution. Fiber asphalt mastic was prepared with a filler-bitumen ratio of 1.6 and fiber dosages of 0%, 1.3%, 2.6%, 3.9%, and 5.2%. The taper entry test, dynamic shear rheology test, and bending beam rheology test were employed to analyze the variations in taper entry, shear strength, complex modulus (G*), phase angle ( δ ), rutting factor (G*/sin δ ), modulus of strength (S), and rate of change of strength (m) of the fiber asphalt mastic. The results indicate that the optimal dosage of mineral fibers in fiber asphalt mastic is 2.6%. Nano-modified basalt fibers significantly enhance the anti-shear capacity of asphalt mastic. The high-temperature stability of fiber asphalt mastic improves with increasing fiber dosage, but the improvement becomes negligible beyond a 2.6% dosage. The interfacial bonding layer formed by asphalt on the fiber surface enhances the high-temperature performance and stress dissipation at low temperatures, thereby improving low-temperature cracking resistance. |
| format | Article |
| id | doaj-art-026099ab21db43ddb445307454a2ed49 |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-026099ab21db43ddb445307454a2ed492025-01-22T19:39:37ZengIOP PublishingMaterials Research Express2053-15912025-01-0112101551010.1088/2053-1591/ad99a4Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortarHaiwei Gao0https://orcid.org/0009-0000-1814-0675Nanxiang Zheng1Xiang Zhang2Zhihui Li3Zhuohong Cong4Highway School, Chang’an University , Xi’an, People’s Republic of ChinaHighway School, Chang’an University , Xi’an, People’s Republic of ChinaHighway School, Chang’an University , Xi’an, People’s Republic of ChinaEngineering Design and Research Institute of China Communications Second Highway Engineering Bureau Co, Ltd., Xi’an, People’s Republic of ChinaHighway School, Chang’an University , Xi’an, People’s Republic of ChinaTo investigate the impact of mineral fiber modification and dosage on the rheological properties of fiber asphalt mastic, basalt fiber surface roughness was enhanced using nano-SiO _2 solution. Fiber asphalt mastic was prepared with a filler-bitumen ratio of 1.6 and fiber dosages of 0%, 1.3%, 2.6%, 3.9%, and 5.2%. The taper entry test, dynamic shear rheology test, and bending beam rheology test were employed to analyze the variations in taper entry, shear strength, complex modulus (G*), phase angle ( δ ), rutting factor (G*/sin δ ), modulus of strength (S), and rate of change of strength (m) of the fiber asphalt mastic. The results indicate that the optimal dosage of mineral fibers in fiber asphalt mastic is 2.6%. Nano-modified basalt fibers significantly enhance the anti-shear capacity of asphalt mastic. The high-temperature stability of fiber asphalt mastic improves with increasing fiber dosage, but the improvement becomes negligible beyond a 2.6% dosage. The interfacial bonding layer formed by asphalt on the fiber surface enhances the high-temperature performance and stress dissipation at low temperatures, thereby improving low-temperature cracking resistance.https://doi.org/10.1088/2053-1591/ad99a4highway engineeringfiberfiber asphalt mortarhigh and low temperature performancerheological properties |
| spellingShingle | Haiwei Gao Nanxiang Zheng Xiang Zhang Zhihui Li Zhuohong Cong Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortar Materials Research Express highway engineering fiber fiber asphalt mortar high and low temperature performance rheological properties |
| title | Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortar |
| title_full | Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortar |
| title_fullStr | Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortar |
| title_full_unstemmed | Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortar |
| title_short | Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortar |
| title_sort | study on the rheological properties of nano sio2 composite modified basalt mineral fiber asphalt mortar |
| topic | highway engineering fiber fiber asphalt mortar high and low temperature performance rheological properties |
| url | https://doi.org/10.1088/2053-1591/ad99a4 |
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