| 淤污泥陶砂在高速公路声屏障工程中的应用 |
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| 引用本文： | 姜友生,丁鹰,杨堃,聂传振.淤污泥陶砂在高速公路声屏障工程中的应用[J].交通科技,2012(1):69-71. |
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| 作者姓名： | 姜友生 丁鹰 杨堃 聂传振 |
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| 作者单位： | 湖北省杭瑞高速公路建设指挥部;武汉理工大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金项目(50872100)资助 |
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| 摘 要： | 利用淤污泥陶砂制备声屏障材料,研究其密度、抗压强度、吸声性能和抗冻性能,并应用于实际工程。实验证明,该声屏障密度为780kg/m3;28d抗压强度4.8MPa;平均吸声系数0.70,在交通频率集中的800～1 200Hz状态下平均吸声系数为0.86;15次冻融循环,质量损失为0。
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| 关 键 词： | 淤污泥陶砂 声屏障 施工 |
Study on Applications of Sludge Ceramsite in Highway Noise Barriers |
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| Jiang Yousheng,Ding Ying,Yang kun,Nie Chuanzhen.Study on Applications of Sludge Ceramsite in Highway Noise Barriers[J].Transportation Science & Technology,2012(1):69-71. |
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| Authors: | Jiang Yousheng Ding Ying Yang kun Nie Chuanzhen |
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| Institution: | 1.Hubei Hang-rui Expressway Construction Headquarters,Xianning 437100,China; 2.School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | Sludge ceramsite is used as the aggregates of noise barriers whose density,compression strength,sound-absorbing performances and frost resistance are studied in this article.The experiment shows that:the density of material is 780 kg/m3,its compression strength is 13.6 MPa when it is the 28th day,the average sound-absorbing coefficient is 0.7.However,in the area of traffic noise frequency between 800 Hz and 1 200 Hz the noise-absorb materials’ coefficient may reach 0.86.Its quality loss is 0 after 15 times freeze-thaw circle. |
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| Keywords: | sludge ceramsite noise barriers construction |
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