Properties of acoustics and vibration of skeleton dense quiet pavement

Cao Wei-dong; Yang Yong-shun; Lu Wei-min

Volume 7 Issue 2

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Cao Wei-dong, Yang Yong-shun, Lu Wei-min. Properties of acoustics and vibration of skeleton dense quiet pavement[J]. Journal of Traffic and Transportation Engineering, 2007, 7(2): 55-58.

Citation:

Cao Wei-dong, Yang Yong-shun, Lu Wei-min. Properties of acoustics and vibration of skeleton dense quiet pavement[J]. Journal of Traffic and Transportation Engineering, 2007, 7(2): 55-58.

Cao Wei-dong, Yang Yong-shun, Lu Wei-min. Properties of acoustics and vibration of skeleton dense quiet pavement[J]. Journal of Traffic and Transportation Engineering, 2007, 7(2): 55-58.

Citation:

Cao Wei-dong, Yang Yong-shun, Lu Wei-min. Properties of acoustics and vibration of skeleton dense quiet pavement[J]. Journal of Traffic and Transportation Engineering, 2007, 7(2): 55-58.

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Properties of acoustics and vibration of skeleton dense quiet pavement

1.
School of Civil Engineering, Shandong University, Jinan 250061, Shandong, China
2.
Road Bureau, Department of Communications of Shandong Province, Jinan 250002, Shandong, China
3.
School of Transportation Engineering, Tongji University, Shanghai 200092, China

More Information

Author Bio:
Cao Wei-dong(1972-), male, PhD, lecturer, +86-531-88392842, cwd2001@sdu.edu.cn
Received Date: 2006-11-18
Publish Date: 2007-04-25

Abstract

Abstract

In order to study the noise reduction mechanism of skeleton dense quiet pavement(SDQP), the absorption coefficient, complex moduli of SDQP mixture and the properties of vertical vibration attenuation of tire aimed at different pavements were tested by respectively using standing-wave meter, repetitive loading method and tire/pavement vibration test system.Test result shows that the absorption coefficient of SDQP is close to that of SMA, the values of the absorption coefficients are very small in all frequency bands, and the dynamic moduli of SDQP decreases with the increase of rubber granules content, while the damping of SDQP increases; the attenuation coefficient of tire placed on SDQP is the maximum, and increases with the increase of rubber granules content, which indicates that SDQP has good noise reduction ability of damping and vibration attenuation, and the primary mechanism of noise reduction is not sound absorption.
- pavement engineering,
- skeleton dense quiet pavement,
- rubber granules,
- sound absorption,
- vibration,
- vibration attenuation,
- mechanism

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References(10)

References

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