Comprehensive Study on Dynamic Modulus and Road Performance of High-Performance Asphalt Mixture
Asphalt pavement durability significantly impacts the service life of roads, and hence, understanding the performance of high-performance asphalt mixtures is crucial. This study investigates the performance of four high-performance asphalt mixtures: heavy-load AC-20, high-viscosity AC-20, heavy-load...
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MDPI AG
2024-11-01
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| author | Qi Liu Jiakai Lu Zhiqiang Zhang Zhiang Chen Tao Wang Qi Zheng |
| author_facet | Qi Liu Jiakai Lu Zhiqiang Zhang Zhiang Chen Tao Wang Qi Zheng |
| author_sort | Qi Liu |
| collection | DOAJ |
| description | Asphalt pavement durability significantly impacts the service life of roads, and hence, understanding the performance of high-performance asphalt mixtures is crucial. This study investigates the performance of four high-performance asphalt mixtures: heavy-load AC-20, high-viscosity AC-20, heavy-load SMA-13, and heavy-load SMA-10. Linear Amplitude Sweep (LAS) tests revealed that heavy-load asphalt mixtures exhibit superior fatigue resistances, with the fatigue life of heavy-load SMA-13 exceeding 1.5 times that of high-viscosity AC-20 under similar stress levels. Bending Beam Rheometer (BBR) tests at −6 °C, −12 °C, and −18 °C demonstrated that both heavy-load and high-viscosity asphalts had comparable low-temperature crack resistance, with heavy-load SMA-13 showing a stiffness modulus of 627 MPa at −18 °C. Marshall tests indicated that heavy-load AC-20 had the highest stability (14.3 kN) among the tested mixtures, while heavy-load SMA-13 exhibited the highest density (2.603 g/cm<sup>3</sup>). Dynamic modulus tests spanning a frequency range of 10<sup>−4</sup> Hz to 10<sup>5</sup> Hz at various temperatures showed that heavy-load SMA-13 had a higher dynamic modulus than heavy-load SMA-10, particularly at lower frequencies (higher temperatures). Rutting tests at 60 °C indicated that heavy-load SMA-13 had the lowest rut depth (18.5 mm), outperforming other mixtures by up to 25%. The heavy-load SMA-13 asphalt mixture demonstrated the best overall performance, especially in terms of high-temperature stability, fatigue resistance, and rutting resistance. This study provides essential material performance parameters for the development of durable high-performance asphalt pavement structures. |
| format | Article |
| id | doaj-art-61849e0d3be54e608fed2d0806597fe4 |
| institution | OA Journals |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-61849e0d3be54e608fed2d0806597fe42025-08-20T01:53:44ZengMDPI AGBuildings2075-53092024-11-011411364310.3390/buildings14113643Comprehensive Study on Dynamic Modulus and Road Performance of High-Performance Asphalt MixtureQi Liu0Jiakai Lu1Zhiqiang Zhang2Zhiang Chen3Tao Wang4Qi Zheng5School of Accountancy, Hebei University of Economics and Business, Shijiazhuang 050091, ChinaCCCC First Highway Consultants Co., Ltd., Xi’an 710136, ChinaTaihang Urban and Rural Construction Group Co., Ltd., Shijiazhuang 050200, ChinaNortheast Civil Aviation Professional Engineering Quality Supervision Station, Shenyang 110043, ChinaDepartment of Highway and Railway Engineering, School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaDepartment of Architecture, School of Civil Department of Architecture, Hebei University of Engineering Science, Shijiazhuang 050091, ChinaAsphalt pavement durability significantly impacts the service life of roads, and hence, understanding the performance of high-performance asphalt mixtures is crucial. This study investigates the performance of four high-performance asphalt mixtures: heavy-load AC-20, high-viscosity AC-20, heavy-load SMA-13, and heavy-load SMA-10. Linear Amplitude Sweep (LAS) tests revealed that heavy-load asphalt mixtures exhibit superior fatigue resistances, with the fatigue life of heavy-load SMA-13 exceeding 1.5 times that of high-viscosity AC-20 under similar stress levels. Bending Beam Rheometer (BBR) tests at −6 °C, −12 °C, and −18 °C demonstrated that both heavy-load and high-viscosity asphalts had comparable low-temperature crack resistance, with heavy-load SMA-13 showing a stiffness modulus of 627 MPa at −18 °C. Marshall tests indicated that heavy-load AC-20 had the highest stability (14.3 kN) among the tested mixtures, while heavy-load SMA-13 exhibited the highest density (2.603 g/cm<sup>3</sup>). Dynamic modulus tests spanning a frequency range of 10<sup>−4</sup> Hz to 10<sup>5</sup> Hz at various temperatures showed that heavy-load SMA-13 had a higher dynamic modulus than heavy-load SMA-10, particularly at lower frequencies (higher temperatures). Rutting tests at 60 °C indicated that heavy-load SMA-13 had the lowest rut depth (18.5 mm), outperforming other mixtures by up to 25%. The heavy-load SMA-13 asphalt mixture demonstrated the best overall performance, especially in terms of high-temperature stability, fatigue resistance, and rutting resistance. This study provides essential material performance parameters for the development of durable high-performance asphalt pavement structures.https://www.mdpi.com/2075-5309/14/11/3643bridge deck pavementhigh-performance asphaltfatigue performancehigh-temperature performancecomposite structure |
| spellingShingle | Qi Liu Jiakai Lu Zhiqiang Zhang Zhiang Chen Tao Wang Qi Zheng Comprehensive Study on Dynamic Modulus and Road Performance of High-Performance Asphalt Mixture Buildings bridge deck pavement high-performance asphalt fatigue performance high-temperature performance composite structure |
| title | Comprehensive Study on Dynamic Modulus and Road Performance of High-Performance Asphalt Mixture |
| title_full | Comprehensive Study on Dynamic Modulus and Road Performance of High-Performance Asphalt Mixture |
| title_fullStr | Comprehensive Study on Dynamic Modulus and Road Performance of High-Performance Asphalt Mixture |
| title_full_unstemmed | Comprehensive Study on Dynamic Modulus and Road Performance of High-Performance Asphalt Mixture |
| title_short | Comprehensive Study on Dynamic Modulus and Road Performance of High-Performance Asphalt Mixture |
| title_sort | comprehensive study on dynamic modulus and road performance of high performance asphalt mixture |
| topic | bridge deck pavement high-performance asphalt fatigue performance high-temperature performance composite structure |
| url | https://www.mdpi.com/2075-5309/14/11/3643 |
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