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Viscoelastic Mechanical Properties of Crumb Rubber Modified Asphalt Mixture
Crumb rubber modified asphalt (CRMA) mixture is a typical viscoelastic material. The pavement made from CRMA mixture has anti-skid surfaces and the pavement is good in reducing the traffic noise. Moreover, building the road with CRMA mixture is important in controlling the pollution cased by a large amount of discarded tires. In order to study the rheological characteristics of CRMA mixture, a series static creep testes for the material has been performed at –15 °C, 0°C, 15 °C, 30 °C and 45 °C respectively. The experimental results indicate that the Burgers model is good in simulating the viscoelastic characteristics of CRMA mixtures. Viscoelastic parameters and time dependence of creep stiffness modulus can be obtained from the simulation of the experimental data. The result shows that creep stiffness modulus decreases rapidly at the initial stage of loading, then the rate of change decreases, and finally creep stiffness modulus approaches to a stable value at the end of loading.
Viscoelastic Mechanical Properties of Crumb Rubber Modified Asphalt Mixture
Crumb rubber modified asphalt (CRMA) mixture is a typical viscoelastic material. The pavement made from CRMA mixture has anti-skid surfaces and the pavement is good in reducing the traffic noise. Moreover, building the road with CRMA mixture is important in controlling the pollution cased by a large amount of discarded tires. In order to study the rheological characteristics of CRMA mixture, a series static creep testes for the material has been performed at –15 °C, 0°C, 15 °C, 30 °C and 45 °C respectively. The experimental results indicate that the Burgers model is good in simulating the viscoelastic characteristics of CRMA mixtures. Viscoelastic parameters and time dependence of creep stiffness modulus can be obtained from the simulation of the experimental data. The result shows that creep stiffness modulus decreases rapidly at the initial stage of loading, then the rate of change decreases, and finally creep stiffness modulus approaches to a stable value at the end of loading.
Viscoelastic Mechanical Properties of Crumb Rubber Modified Asphalt Mixture
Wang, Lan (author) / Chang, Chun-qing (author) / Xing, Yong-ming (author)
Ninth International Conference of Chinese Transportation Professionals (ICCTP) ; 2009 ; Harbin, China
ICCTP 2009 ; 1-6
2009-07-23
Conference paper
Electronic Resource
English
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