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A platform for research: civil engineering, architecture and urbanism
Effect of Temperature Segregation on Crumb Rubber-Modified Asphalt Mixture of Pavement Compaction Degree
https://orcid.org/http://orcid.org/0000-0001-6635-7852
Pavement compaction is an important index to evaluate the construction quality of rubber asphalt pavement. The spreading temperature segregation of mixture will affect the pavement compaction degree. To study the relationship between temperature segregation of crumb rubber-modified asphalt (CRA) mixture and pavement compactness, the 40-mesh crumb rubber powder was used to prepare CRA, and the Superpave design method was adopted to design the CRA mixture in the laboratory. Based on the infrared thermal imaging technology, the segregation of CRA mixture was quickly detected, and the pavement compactness was measured by coring at the temperature detection point. On this basis, a numerical analysis model of temperature–pavement compactness was established. The results show that the temperature data detected by the infrared thermal imager are reliable after comparison with the measured data of the thermometer. The temperature segregation of the mixture in direct contact with the atmosphere and the car body during transportation is serious. When the temperature segregation difference of CRA mixture is increased by 5 °C, the bulk specific gravity difference of coring specimen increases by 0.012. According to the field measured data, the relationship between paving temperature and compactness of rubber asphalt mixture is a quadratic function.
Effect of Temperature Segregation on Crumb Rubber-Modified Asphalt Mixture of Pavement Compaction Degree
https://orcid.org/http://orcid.org/0000-0001-6635-7852
Pavement compaction is an important index to evaluate the construction quality of rubber asphalt pavement. The spreading temperature segregation of mixture will affect the pavement compaction degree. To study the relationship between temperature segregation of crumb rubber-modified asphalt (CRA) mixture and pavement compactness, the 40-mesh crumb rubber powder was used to prepare CRA, and the Superpave design method was adopted to design the CRA mixture in the laboratory. Based on the infrared thermal imaging technology, the segregation of CRA mixture was quickly detected, and the pavement compactness was measured by coring at the temperature detection point. On this basis, a numerical analysis model of temperature–pavement compactness was established. The results show that the temperature data detected by the infrared thermal imager are reliable after comparison with the measured data of the thermometer. The temperature segregation of the mixture in direct contact with the atmosphere and the car body during transportation is serious. When the temperature segregation difference of CRA mixture is increased by 5 °C, the bulk specific gravity difference of coring specimen increases by 0.012. According to the field measured data, the relationship between paving temperature and compactness of rubber asphalt mixture is a quadratic function.
Effect of Temperature Segregation on Crumb Rubber-Modified Asphalt Mixture of Pavement Compaction Degree
https://orcid.org/http://orcid.org/0000-0001-6635-7852
Pavement compaction is an important index to evaluate the construction quality of rubber asphalt pavement. The spreading temperature segregation of mixture will affect the pavement compaction degree. To study the relationship between temperature segregation of crumb rubber-modified asphalt (CRA) mixture and pavement compactness, the 40-mesh crumb rubber powder was used to prepare CRA, and the Superpave design method was adopted to design the CRA mixture in the laboratory. Based on the infrared thermal imaging technology, the segregation of CRA mixture was quickly detected, and the pavement compactness was measured by coring at the temperature detection point. On this basis, a numerical analysis model of temperature–pavement compactness was established. The results show that the temperature data detected by the infrared thermal imager are reliable after comparison with the measured data of the thermometer. The temperature segregation of the mixture in direct contact with the atmosphere and the car body during transportation is serious. When the temperature segregation difference of CRA mixture is increased by 5 °C, the bulk specific gravity difference of coring specimen increases by 0.012. According to the field measured data, the relationship between paving temperature and compactness of rubber asphalt mixture is a quadratic function.
Effect of Temperature Segregation on Crumb Rubber-Modified Asphalt Mixture of Pavement Compaction Degree
Int. J. Pavement Res. Technol.
Yu, Dezhong (author) / Zhao, Qianqian (author) / Zhang, Luyu (author) / Zhang, Jiarui (author)
International Journal of Pavement Research and Technology ; 16 ; 402-412
2023-03-01
11 pages
Article (Journal)
Electronic Resource
English
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