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| 骨架密实型低噪声路面降噪机理的实验研究 | |
| 引用本文： | 许雪莹,曹卫东,葛剑敏,王佐民.骨架密实型低噪声路面降噪机理的实验研究[J].应用声学,2008,27(1):7-10. |
| 作者姓名： | 许雪莹 曹卫东 葛剑敏 王佐民 |
| 作者单位： | 1. 上海大众汽车有限公司,上海,201805 2. 山东大学土建与水利学院,济南,250061 3. 同济大学声学所,上海,200092 |
| 摘 要： | 配制了传统的沥青混凝土(AC)、碎石沥青玛蹄脂(SMA)、不同橡胶粉掺量的骨架密实型低噪声路面等3类共5个配比的沥青路面,采用驻波法测量了各类沥青路面的吸声系数。并且分析了橡胶粉掺量对密实型低噪声路面动态模量的影响,得出了结论,即在这些路面中,橡胶粉含量为3%的密实型路面的减振降噪效果最好。 |
| 关 键 词： | 动态模量 吸声系数 骨架密实结构路面 |
| 收稿时间： | 2006-03-31 |
| 修稿时间： | 2007-02-20 |
Experimental study of noise-reducing mechanism of dense framework structure and low noise pavement |
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| XU Xue-Ying,CAO Wei-Dong,GE Jian-Min and WANG Zuo-Min.Experimental study of noise-reducing mechanism of dense framework structure and low noise pavement[J].Applied Acoustics,2008,27(1):7-10. | |
| Authors: | XU Xue-Ying CAO Wei-Dong GE Jian-Min and WANG Zuo-Min |
| Institution: | a3 (1 Shanghai Volkswagen Corporation.,Shanghai 201805) (2 School of civil Engineering,Shandong University,Jinan 250061) (3 Institute of Acoustics,Tongji University,Shanghai 200092) |
| Abstract: | Three classes of asphalt mixtures were tested, namely, ordinary asphalt concrete, SMA, framework dense structure and low noise pavement with different percentage of rubber powder, the total number of mix being 5. Standing wave method was employed to measure the sound absorption coefficient. By comparing differences between the different kinds, the effect of rubber powder on the dynamic modulus was analyzed, and the conclusion is drawn that SMA with 3% rubber power is the best material among these pavements to reduce vibration and noise. |
| Keywords: | Dynamic modulus Sound absorption coefficient Framework dense structure pavement |
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