Evaluation of Siltation Degree of Permeable Asphalt Pavement and Detection of Noise Reduction Degree

This study mainly uses PFC (particle follow code) to simulate the void characteristics of permeable asphalt mixture, and uses these to simulate the silting process. Then, a tire drop test was used to evaluate the noise reduction performance of permeable asphalt concrete. Finally, a self-made ring ru...

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Bibliographic Details
Published in:Applied sciences 2021-01, Vol.11 (1), p.349
Main Authors: Chen, Shuang, Lin, Xuechun, Zheng, Chuanfeng, Guo, Xuedong, Chen, Wuxing
Format: Article
Language:English
Subjects:
Aggregates
Asphalt
Asphalt mixes
Asphalt pavements
Chemical elements
Concrete
Decibels
Drop tests
fouling
Impact tests
Noise
Noise measurement
Noise reduction
noise reduction performance
Particle size
Permeability
permeable asphalt pavement
Pollutants
Porosity
Rain
Repair & maintenance
Roads
Roads & highways
Sand & gravel
Silting
Simulation
Sludge
Stone
Test methods
testing
Transportation noise
Viscosity
water permeability
Water quality
X-rays
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Summary:This study mainly uses PFC (particle follow code) to simulate the void characteristics of permeable asphalt mixture, and uses these to simulate the silting process. Then, a tire drop test was used to evaluate the noise reduction performance of permeable asphalt concrete. Finally, a self-made ring rutting test machine was used to simulate the silting process. Through experiments, the following conclusions were obtained: 1. The critical size of the sludge particle size is 0.3 mm–0.6 mm. 2. The quality of the water-permeable asphalt concrete specimens increased by 13% before and after silting, and the porosity of the specimens finally decreased from about 20% to about 8%. The water-permeable function only retained less than 20% of the original, and the water-permeable function was basically lost. 3. By measuring the road noise detection, it was found that the road noise is directly proportional to the degree of blockage of the permeable road. Compared with the original road with a perfect permeable function, the road noise of the completely blocked road increased by about 4 decibels. This study reveals the silting process of permeable asphalt mixture and the key particle size of the silt, which is of great significance for the detection, cleaning and maintenance of permeable asphalt pavements.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11010349