Analysis of Dynamic Response Master Curve of Carbon Black Modified Asphalt Mixture
[1]Li Peilong,Rao Wenyu,Feng Zhengang,et al.Analysis of Dynamic Response Master Curve of Carbon Black Modified Asphalt Mixture[J].Journal of Zhengzhou University (Engineering Science),2016,37(05):1-5,11.[doi:10.13705/j.issn.1671-6833.2016.05.001]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37卷
Number of periods:
2016 05
Page number:
1-5,11
Column:
Public date:
2016-11-25
- Title:
- Analysis of Dynamic Response Master Curve of Carbon Black Modified Asphalt Mixture
- Keywords:
- asphalt mixture; Asphalt Mixture Performance Test (AMPT); visco-elastic dynamic response; dynamic modulus; master curve
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2016.05.001
- Abstract:
- The dynamic modulus is one of the important characterization parameters of the viscoelastic dynamic response of asphalt mixture. Three graded asphalt mixtures were selected to carry out performance tests of asphalt mixture under different test conditions. According to the change law of test temperature, the attenuation model of dynamic modulus with test temperature under different loading frequencies was obtained; the influence of loading frequency on the attenuation rate of dynamic modulus was analyzed, and the shift factor of dynamic modulus was discussed, and the The main curve of dynamic modulus. The results show that as the loading frequency increases, the dynamic modulus of asphalt mixture increases gradually, but the higher the temperature, the smaller the increase; the dynamic modulus has an exponential relationship with the increase of temperature Attenuation, the higher the loading frequency, the greater the attenuation rate, and the dynamic modulus of modified asphalt mixture AC-13 has the smallest decay rate with temperature; at higher temperatures (such as 55°C), the dynamic modulus of different loading frequencies The difference is very small. The dynamic modulus master curve and displacement factor can better describe the influence of loading frequency and test temperature on the viscoelastic response of asphalt mixture.
- References:
- -
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