scholarly journals Effects of double layer porous asphalt pavement of urban streets on noise reduction

2016 ◽  
Vol 5 (1) ◽  
pp. 183-196 ◽  
Author(s):  
Mei Liu ◽  
Xiaoming Huang ◽  
Guoqiang Xue
Keyword(s):  
Noise Reduction ◽  
Double Layer ◽  
Asphalt Pavement ◽  
Porous Asphalt ◽  
Urban Streets

Technological Study on Interlayer Bonding of Double-Layer Porous Asphalt Pavement

2013 ◽  
Vol 405-408 ◽  
pp. 1725-1732 ◽  
Author(s):  
Guo Qi Tang ◽  
Dong Wei Cao ◽  
Ke Zhong ◽  
Xiao Qiang Yang
Keyword(s):  
Double Layer ◽  
Asphalt Pavement ◽  
Layer By Layer ◽  
Simulation Experiments ◽  
Porous Asphalt ◽  
One Step ◽  
Bonding Technology ◽  
Pavement Structure ◽  
Technological Study ◽  
Interlayer Bonding

The interlayer bonding of double-layer porous asphalt pavement will show more variations with different construction technologies, such as one-step molding by double-layer (hot on hot) paver, or paving layer by layer (hot on cold) with or without tack coat, and the variations will definitely have influences on pavement structure. Different interlayer technologies are studied in this paper on three levels including simulation experiments on specimen by indoor preparation, calculation of pavement mechanics, and construction of testing road, so that optimal interlayer bonding technology for double-layer porous asphalt pavement is discussed in combination with its effect on permeability.

scholarly journals Noise Reduction Effect of Porous Asphalt Pavement Based on Acoustic-Structure Coupling Model

2021 ◽  
Vol 8 (2) ◽  
pp. 97-102
Author(s):  
Jiakun Yang ◽  
Zhou Qiu ◽  
Chuanfeng Zheng
Keyword(s):  
Noise Reduction ◽  
Sound Absorption ◽  
Asphalt Pavement ◽  
Traffic Noise ◽  
Coupling Model ◽  
Comsol Multiphysics ◽  
Acoustic Structure ◽  
Porous Asphalt ◽  
Reduction Effect ◽  
Pore Depth

Nowadays, the traffic noise problem is becoming increasingly prominent. In order to study the influence of porosity and pore depth on the noise reduction performance of asphalt pavement, this paper used the software COMSOL Multiphysics to establish acoustic-structure coupling models, and simulated the sound absorption and noise reduction effect of asphalt pavement under 10%, 15%, 20%, 25%, and 30% porosity; moreover, under the condition of unchanged asphalt pavement porosity, the sound absorption and noise reduction effect of asphalt pavement under 3cm, 4cm, 5cm, 6cm, and 7cm pore depth was studied as well. The research results reveal that, with the increase of porosity and pore depth, the sound absorption and noise reduction effect of asphalt pavement gets better.

A Case Study on Noise Reduction Effect of Two-layer Porous Asphalt Pavement in an Urban Area

2016 ◽  
Vol 18 (5) ◽  
pp. 49-56 ◽  
Author(s):  
Jong-Seok Jung ◽  
Jeong-Rak Sohn ◽  
Soo-Hyoung Lee ◽  
Hong-Seok Yang
Keyword(s):  
Noise Reduction ◽  
Urban Area ◽  
Asphalt Pavement ◽  
Porous Asphalt ◽  
Reduction Effect

Micro-structural analysis of noise reduction mechanism of porous asphalt mixture based on FEM

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Junfeng Sun ◽  
Haitao Zhang ◽  
Guangyuan Wu ◽  
Zuoqiang Liu ◽  
Yuping Feng ◽  
...  
Keyword(s):  
Pore Structure ◽  
Noise Reduction ◽  
Sound Absorption ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Low Noise ◽  
Reduction Mechanism ◽  
Absorption Mechanism ◽  
Content Type ◽  
Porous Asphalt

PurposeIn order to give full play to the function of noise reduction of asphalt pavement, it is necessary to understand its internal sound absorption mechanism. Therefore, the purpose of this study is to establish a micro model of the pore structure of asphalt mixture with the help of finite element method (FEM), discuss the noise reduction mechanism of asphalt pavement from the micro perspective and analyze and evaluate the noise attenuation law of the pore structure.Design/methodology/approachThe FEM was used to establish the microscopic model of the pore structure of asphalt mixture. Based on the principle of acoustics, the noise reduction characteristics of asphalt pavement were simulated. The influence of gradation and pore characteristics on the noise reduction performance of asphalt pavement was analyzed.FindingsThe results show that the open graded friction course-13 (OGFC-13) has excellent performance in noise reduction. The resonant sound absorption structure composed of its large porosity can effectively reduce the pavement noise. For asphalt concrete-13 (AC-13) and stone matrix asphalt-13 (SMA-13), the less resonant sound absorption structure makes them have poor sound absorption effect. In addition, the variation rules of noise transmission loss (TL) curve and sound absorption coefficient curve of three graded asphalt mixtures were obtained. At the same time, the peak noise reduction values of OGFC-13, AC-13 and SMA-13 were obtained, which were 650Hz, 1000Hz and 800Hz, respectively.Originality/valueThe results show that the simulation results can well reflect and express the experimental results. This will provide a reference for further exploring the sound absorption mechanism and its variation rule of porous asphalt pavement. It also has some positive significance for the application of low noise asphalt pavement.

Double layer drainage performance of porous asphalt pavement

2018 ◽  
Author(s):  
Yangyang Ji ◽  
Jianguang Xie ◽  
Mingxi Liu
Keyword(s):  
Double Layer ◽  
Asphalt Pavement ◽  
Porous Asphalt
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