Correlation Between OGFC’s Void and Sound Absorption Coefficient Under the Influence of Environment and Rut
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U416.217

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    Abstract:

    OGFC slabs with the same mixture design were treated by SHRP aging, water damage, and self-de- veloped aging+water damage coupling environment simulator. Then, rutting tests were applied to the environment treated specimens, and cylindrical specimens with a diameter of 50 mm were cored from the tracking sites of rutting wheel. The void and sound absorption properties of these cylindrical specimens were tested and their re- lationships were analyzed. The results showed that the peak acoustic absorption coefficient correlates better than average acoustic absorption coefficient to the void content and the connected void content. In addition, by com- paring with previous studies, it is concluded that the environmental treatment conditions in this study have no significant impacts on the voids, connected voids and the peak acoustic absorption coefficient of the specimen. It is more effective to use the peak acoustic absorption coefficient to represent the connected voids of OGFC mix- ture under the action of environment and vehicle load.

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吴建涛,马鑫源,王浩安,吴俊扬,王志新.环境与车辙影响下OGFC空隙率与吸声系数相关性[J].华东交通大学学报英文版,2019,36(4):17-23.
Wu Jiantao, Ma Xinyuan, Wang Haoan, Wu Junyang, Wang Zhixin. Correlation Between OGFC’s Void and Sound Absorption Coefficient Under the Influence of Environment and Rut[J]. JOURNAL OF EAST CHINA JIAOTONG UNIVERSTTY,2019,36(4):17-23

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  • Online: May 31,2021
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