Nondestructive detection method for congestion state of permeable asphalt pavement

Abstract

The invention belongs to the technical field of permeable pavement congestion detection, and particularly relates to a nondestructive detection method for the congestion state of a permeable asphalt pavement. The pavement noise growth rate is calculated by standardly testing the pavement noise value of the initial permeable asphalt pavement and the permeable asphalt pavement put into use for a period of time; if the pavement noise growth rate is larger than or equal to 5.5%, it can be judged that the pavement congestion degree is serious, and cleaning and maintenance need to be conducted; therelation between the pavement noise of the permeable asphalt pavement and the pavement gap state is used for detecting the permeable pavement gap congestion state. Implementation is easy and convenient, the pavement is not damaged, and the congestion degree of the permeable asphalt pavement can be accurately detected.

Description

Technical field [0001] The invention belongs to the technical field of permeable pavement silt detection, and in particular relates to a non-destructive detection method for the silt state of permeable asphalt pavement. Background technique [0002] After the permeable pavement is open for traffic for a period of time, due to road surface sediments, road damages, etc. entering the pavement voids, different degrees of siltation will occur, resulting in the loss of drainage and water storage capacity of the pavement, and it becomes as impervious as ordinary roads. . In order to restore the water permeability of the blocked road surface, professional equipment and professional methods are required to maintain the road surface. [0003] Among them, in the process of clearance and maintenance of the permeable asphalt pavement, the detection of the blockage of the pavement gap is involved. [0004] At present, the commonly used methods to detect the degree of siltation of permeable aspha...

AI Technical Summary

Problems solved by technology

[0004] At present, the commonly used methods to detect the silting degree of permeable asphalt pavement include the method of measuring the water permeability coefficient of the pavement, the method of CT scanning and image processing after drilling core samples, etc. Affected by lateral water seepage, the error is large, and core drilling will cause permanent damage to the pavement. Sampling and cutting will cause serious damage to the void state of the sample taken out, and the actual void state of the original pavement cannot be obtained, resulting in the obtained The test results are seriously distorted and the operation is complicated

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