A thermal asphalt bonding layer for measuring the thickness of the surface layer by radar and its application method

Abstract

A thermal asphalt bonding layer for measuring the thickness of the surface layer by radar and its use method. The weight ratio of raw materials is: 100 parts of asphalt, 4.5 parts of metal powder, 2.5 parts of thermoplastic resin, 1.5 parts of anti-stripping agent, 0.3 parts of antioxidant, 0.25 parts of coupling agent. The adhesive layer is laid on the semi-rigid base layer and between each asphalt layer. After a large number of indoor research tests, the results show that the adhesive layer has a high bonding strength, which can make the asphalt pavement structure layer a whole, improve its service life, and can make The electromagnetic wave signal of the radar thickness measurement is totally reflected, which improves the test accuracy and realizes the layered detection of the asphalt layer thickness. It can be widely used in the construction quality control of urban roads, airport roads and highways.

Description

technical field [0001] The invention belongs to the technical field of road surfaces such as urban roads, airport roads, and highways, and in particular relates to a thermal asphalt bonding layer used for measuring thickness by radar and a use method thereof. Background technique [0002] With the rapid development of highway construction, the mileage of expressways in my country has exceeded 130,000 kilometers, and the total mileage of highways of all levels has reached more than 4 million kilometers, of which more than 95% are asphalt pavement structures. Strengthening project quality control is an important means to ensure the service life of asphalt pavement. The basic basis of quality control is test data. Therefore, continuously improving the test level and increasing the test frequency are effective ways to improve project quality. For the surface layer structure of asphalt pavement, the thickness is an important indicator of pavement quality control, which is directl...

AI Technical Summary

Problems solved by technology

When disputes arise, the thickness data detected by radar cannot be used as the basis for project quality assessment, which seriously restricts the development of this non-destructive testing technology

(2) Layer-by-layer testing is not possible: the asphalt pavement surface layer is usually divided into two or three layers and paved in sequence, and the asphalt structure layer is from bottom to top, and the project cost gradually increases. In addition, the control of project quality should mainly be carried out through prior Therefore, in order to effectively supervise construction enterprises to carry out construction in strict accordance with the design thickness of the structural layer and ensure the quality of the project, it is necessary to detect the thickness of the structural layer layer by layer during the construction process

As mentioned earlier, due to the same properties such as the dielectric constant of different asphalt layers, it is impossible to distinguish and detect the thickness of each layer of asphalt layer through radar detection

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