A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research on Permanent Deformation of an Asphalt Mixture by Uniaxial Repeated Load Test
In this paper, uniaxial repeated load permanent deformation tests of three mixtures were conducted at different temperatures and stress levels to analyze the permanent strain changing regularity. By the test results, the relationships between flow number, temperature, and stress were also investigated. It is indicated that after coring and sawing, the voids of core specimens are less than the original specimen, and the void of an original specimen should be increased to satisfy the target value of void; all the three asphalt mixtures present three-phase behavior, and the permanent strain is greater and the tertiary stage is hastened at higher temperature and stress; skeleton gradation and modified asphalt can improve the resistance to permanent deformation; the flow number (FN) decreases with test temperature and stress, and it can distinguish the difference between the resistances to permanent deformation of asphalt mixtures. However, at very high temperatures and levels of stress, the difference among the three asphalt mixtures is negligible.
Research on Permanent Deformation of an Asphalt Mixture by Uniaxial Repeated Load Test
In this paper, uniaxial repeated load permanent deformation tests of three mixtures were conducted at different temperatures and stress levels to analyze the permanent strain changing regularity. By the test results, the relationships between flow number, temperature, and stress were also investigated. It is indicated that after coring and sawing, the voids of core specimens are less than the original specimen, and the void of an original specimen should be increased to satisfy the target value of void; all the three asphalt mixtures present three-phase behavior, and the permanent strain is greater and the tertiary stage is hastened at higher temperature and stress; skeleton gradation and modified asphalt can improve the resistance to permanent deformation; the flow number (FN) decreases with test temperature and stress, and it can distinguish the difference between the resistances to permanent deformation of asphalt mixtures. However, at very high temperatures and levels of stress, the difference among the three asphalt mixtures is negligible.
Research on Permanent Deformation of an Asphalt Mixture by Uniaxial Repeated Load Test
Pi, Yuhui (author) / Huang, Xiaoming (author)
Tenth International Conference of Chinese Transportation Professionals (ICCTP) ; 2010 ; Beijing, China
ICCTP 2010 ; 3501-3507
2010-07-22
Conference paper
Electronic Resource
English
Research on Permanent Deformation of an Asphalt Mixture by Uniaxial Repeated Load Test
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