Large-particle pavement capable of being matched with vehicle low-frequency noise detection and paving method of large-particle pavement

Abstract

The invention discloses a large-particle pavement capable of being matched with vehicle low-frequency noise detection. The large-particle pavement comprises a roadbed layer. The roadbed layer is paved with a bonding layer. Hard pebbles penetrate through the interior of the bonding layer. The upper ends of the pebbles stretch out of the top surface of the bonding layer, and the lower ends of the pebbles make contact with the roadbed layer. The invention further discloses a paving method of the large-particle pavement capable of being matched with vehicle low-frequency noise detection. According to the large-particle pavement capable of being matched with vehicle low-frequency noise detection, the bonding layer and the roadbed layer are closely attached, gaps are few, and the probability of producing interfering noise in the gaps is decreased; the impact resistance and the strength of the pavement can be improved through the hard pebbles, and vehicles running on the large-particle pavement are made to produce low-frequency noise, so that vehicle low-frequency noise detection is matched; and the bonding strength of the bonding layer is high, the pebbles are embedded in the bonding layer and are firm and durable, and the particle dropping probability is smaller than that of a finished antiskid road carpet.

Description

technical field [0001] The invention relates to a road surface for vehicle noise detection, in particular to a large-grain road surface and a paving method for detecting vehicle low-frequency noise. Background technique [0002] The level of car noise is an important evaluation index for car ride comfort, reflecting the design level and process level of the manufacturer. A lot of car noise will increase the fatigue of drivers and passengers, affect the driving safety of the car, and endanger the health of the passengers. Therefore, it is necessary to test the low-frequency noise of the car before leaving the factory and control it within a low level range. The low-frequency noise detection of automobiles at 20-200 Hz is not common in China, especially the road and road pavement methods for low-frequency noise detection are not perfect. [0003] When detecting this low-frequency noise parameter, if a certain damaged asphalt road is used in the society, the road condition is ...

AI Technical Summary

Problems solved by technology

The low-frequency noise detection of automobiles at 20-200Hz is not common in China, especially the road and pavement paving methods for low-frequency noise detection are not perfect

[0003] When detecting this low-frequency noise parameter, if a certain damaged asphalt road is used in the society, the road condition is not fixed, and the comparison under the same condition cannot be realized, and the test result is easily interfered by the surrounding environment vehicles and is inaccurate; In the method of finished non-slip road carpet, the particle size of the industrial finished surface layer stone particles is limited, and it is easy to produce gaps when it is bonded with the base layer, and it is easy to generate interference noise when used in the detection of low-frequency noise

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