Hot asphalt adhesive layer for radar measurement of surface thickness and utilization method

A technology of hot asphalt and bonding layer, which is applied in the direction of measuring device, wave/particle radiation, coagulation pavement paved on site, etc., which can solve the problem of increased project cost, the inability to distinguish and detect the thickness of asphalt layer, and the basis for evaluation, etc. Problems, to achieve the effect of improving performance and service life, significant economic and social benefits, and ensuring project quality

Active Publication Date: 2018-03-16
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Hot asphalt adhesive layer for radar measurement of surface thickness and utilization method
  • Hot asphalt adhesive layer for radar measurement of surface thickness and utilization method
  • Hot asphalt adhesive layer for radar measurement of surface thickness and utilization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] All raw materials and their mass ratios of the thermal asphalt bonding course used for radar measurement of surface layer thickness are as follows:

[0017] Bitumen 100kg

[0018] Metal powder 4kg

[0019] Thermoplastic resin 2.5kg

[0020] Anti-stripping agent 1.25kg

[0021] Antioxidant 0.3kg

[0022] Coupling agent 0.25kg

[0023] The asphalt is SBS polymer modified asphalt, the metal powder is iron powder with a particle size of 0.05 mm; the thermoplastic resin is ethylene-vinyl acetate copolymer (EVA); the anti-stripping agent is slaked lime with a particle size of 0.06 mm; the antioxidant is Dibutylhydrocarbyl toluene; coupling agent is silane coupling agent KH-560.

Embodiment 2

[0025] All raw materials and their mass ratios of the thermal asphalt bonding course used for the radar to accurately measure the thickness of the surface layer are as follows:

[0026] Bitumen 100kg

[0027] Metal powder 4.5kg

[0028] Thermoplastic resin 2.5kg

[0029] Anti-stripping agent 1.5kg

[0030] Antioxidant 0.3kg

[0031] Coupling agent 0.25kg

[0032] The above-mentioned asphalt, metal powder, thermoplastic resin, anti-stripping agent, antioxidant and coupling agent are the same as in Example 1, and the method of using the hot asphalt bonding layer is the same as in Example 1.

Embodiment 3

[0034] All raw materials and their mass ratios of the thermal asphalt bonding course used for the radar to accurately measure the thickness of the surface layer are as follows:

[0035] Bitumen 100kg

[0036] Metal powder 5kg

[0037] Thermoplastic resin 2.5kg

[0038] Anti-stripping agent 1.75kg

[0039] Antioxidant 0.3kg

[0040] Coupling agent 0.25kg

[0041] The above-mentioned asphalt, metal powder, thermoplastic resin, anti-stripping agent, antioxidant and coupling agent are the same as in Example 1; the method of use is the same as in Example 1.

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Abstract

The invention discloses a hot asphalt adhesive layer for radar measurement of surface thickness and a utilization method. The hot asphalt adhesive layer is prepared from, by weight, 100 parts of asphalt, 4.5 parts of metal powder, 2.5 parts of thermoplastic resin, 1.5 parts of an anti-stripping agent, 0.3 part of an antioxidant and 0.25 part of a coupling agent. The adhesive layers are laid on a semi-rigid base layer and among asphalt layers. According to a great quantity of indoor research experiments, the adhesive layer is high in adhesive strength and makes an asphalt pavement structural layer into a whole to prolong the service life, and total reflection of electromagnetic waves in radar measurement of thickness can be realized, so that testing precision is improved, and layered detection of asphalt layer thickness is realized. The hot asphalt adhesive layer is widely applicable to construction quality control of pavements of urban roads, airport roads, highways and the like.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/26C04B26/26G01B15/02
CPCC04B26/26C04B2201/50E01C7/26E01C7/265G01B15/02C04B22/04C04B14/02C04B24/24C04B2103/608C04B24/42C04B22/064
Inventor 郭德栋陈颖王腾孙大志
Owner SHANDONG JIAOTONG UNIV
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