Conductive asphalt concrete resistance test method

A technology for conducting asphalt and resistance testing, applied in the field of material science and engineering, can solve the problems of inability to continue to use testing methods, limited popularization and application, good engineering simulation, etc., and achieves the effect of consistent compactness, good simulation, and simple electrical conductivity.

Inactive Publication Date: 2008-04-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among these methods, the copper pressing method and the external graphite cloth method have a great influence on the surface contact resistance, and the accuracy is not high; the silver coating method has the highest accuracy, but the actual price is expensive, which limits its popularization and application; the embedded electrode method is Low cost, good test accuracy, and good engineering simulation, it is a commonly used cement concrete test method
There are few studies on conductive asphalt concrete in my country, and its resistance test method has not been reported. Asphalt concrete is formed by compaction, rolling, static pressure, and rotary compaction, while cement concrete is formed without external force. , it is impossible to continue to use the test method of cement concrete embedded electrodes

Method used

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Examples

Experimental program
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Embodiment 1

[0023] A resistance testing method of conductive asphalt concrete, it comprises the steps:

[0024] 1) Preparation of the test device: as shown in Fig. 1 and Fig. 2, the test mold 1, the first electrode 2, the first steel partition 3, the support block 4, the second steel partition 5, and the second electrode 6 , the first lead wire 7, the second lead wire 8, and the resistance measuring instrument (such as a multimeter) constitute a test device; the first electrode 2, the first steel partition plate 3, the support block 4, the second steel partition plate 5, the second The electrodes 6 are put into the cavity of the test mold 1 respectively, and the support block 4 is located between the first steel separator 3 and the second steel separator 5, and is respectively connected to the right side of the first steel separator 3, The left side of the second steel partition 5 is in contact, the front side, rear side and bottom side of the first steel partition 3 are in contact with t...

Embodiment 2

[0035] A resistance testing method of conductive asphalt concrete, it comprises the steps:

[0036] 1) Preparation of the test device: by the test mold 1, the first electrode 2, the first steel partition 3, the support block 4, the second steel partition 5, the second electrode 6, the first wire 7, the second wire 8. A resistance measuring instrument (such as a multimeter) constitutes a test device; put the first electrode 2, the first steel partition 3, the support block 4, the second steel partition 5, and the second electrode 6 into the test mold 1 respectively. In the cavity, the support block 4 is located between the first steel partition 3 and the second steel partition 5, and is connected to the right side of the first steel partition 3 and the left side of the second steel partition 5 respectively. The sides are in contact, the front side, rear side and bottom side of the first steel partition 3 are in contact with the test mold 1 respectively, and the front side, rear...

Embodiment 3

[0043] A resistance testing method of conductive asphalt concrete, it comprises the steps:

[0044] 1) Preparation of the test device: by the test mold 1, the first electrode 2, the first steel partition 3, the support block 4, the second steel partition 5, the second electrode 6, the first wire 7, the second wire 8. A resistance measuring instrument (such as a multimeter) constitutes a test device; put the first electrode 2, the first steel partition 3, the support block 4, the second steel partition 5, and the second electrode 6 into the test mold 1 respectively. In the cavity, the support block 4 is located between the first steel partition 3 and the second steel partition 5, and is connected to the right side of the first steel partition 3 and the left side of the second steel partition 5 respectively. The sides are in contact, the front side, rear side and bottom side of the first steel partition 3 are in contact with the test mold 1 respectively, and the front side, rear...

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Abstract

The invention relates to a resistance testing method of conduction asphalt concrete used for roads; the invention is characterized in that the testing method comprises the steps as following: firstly, the preparation of a testing device: the testing device is formed by a testing die (1), a first electrode (2), a first steel-made clapboard (3), a supporting block (4), a second steel-made clapboard (5), a second electrode (6), a first lead (7), a second lead (8) and a resistance measuring meter; secondly, leading the tested and heat mixed conduction asphalt concrete evenly to be filled into an area 1 and an area 2 of the testing die (1) according to the total amount of the conduction asphalt concrete needed for the area 1 and the area 2; thirdly, leading the tested and heat mixed conduction asphalt concrete to be evenly filled into an area 3 of the testing die (1) according to the total amount of conduction asphalt concrete needed for the area 3, and unmolding after the maintenance of indoor temperature within 24 hours; fourthly, leading the input end of a resistance meter to be respectively connected with the first lead (7) and the second lead (8) to measure the resistance value of the conduction asphalt concrete. The invention is simple and highly accurate.

Description

technical field [0001] The invention belongs to the field of material science and engineering, and in particular relates to a resistance testing method of conductive asphalt concrete for roads. technical background [0002] Conductive asphalt concrete is a new type of road functional material. Adding a certain amount of conductive phase materials into asphalt concrete can greatly improve its electrical properties, thus becoming a conductor with good electrical conductivity. This makes asphalt concrete not only be used as a building structure material, but also play an important role in electrical, electronic, electromagnetic interference shielding, industrial anti-static, electric heater, road self-diagnosis and so on. In the research of the electrical properties and sensitive characteristics of conductive asphalt concrete, the main measurement object is the resistance value of the material. The electrode is the bridge connecting the tested sample and the test instrument. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02G01R27/04
Inventor 丁庆军胡曙光刘新权吴学伟沈凡黄绍龙方杨敖灶鑫
Owner WUHAN UNIV OF TECH
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