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Device for rapidly detecting deformation and deformation recovery of asphalt and test method

A technology of deformation recovery and test method, applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., to achieve the effect of rapid evaluation and analysis

Pending Publication Date: 2022-02-08
SHANDONG HI SPEED GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical task of the present invention is to provide a device and test method for quickly detecting asphalt deformation and deformation recovery, so as to solve the problem of how to quickly evaluate and analyze asphalt performance

Method used

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  • Device for rapidly detecting deformation and deformation recovery of asphalt and test method
  • Device for rapidly detecting deformation and deformation recovery of asphalt and test method
  • Device for rapidly detecting deformation and deformation recovery of asphalt and test method

Examples

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Embodiment 1

[0044] as attached figure 1 As shown, the device for quickly detecting asphalt deformation and deformation recovery of the present invention has a structure including a frame body, an asphalt storage box 1 is installed at the bottom of the frame body, an indenter 2 is installed above the asphalt storage box 1, and an indenter 2 is installed on the top of the asphalt storage box 1. A universal press pressure head 3 is installed above, and a displacement sensor 4 (LVDT) is installed on both sides of the universal press pressure head 3 respectively. The asphalt storage box 1 is made of a high-strength aluminum alloy box; the penetration head 2 is made of a high-strength light aluminum alloy head.

[0045] as attached image 3 As shown, the frame body in this embodiment includes a bracket base 5, two vertical brackets 6 are installed on the bracket base 5, a horizontal bracket connecting rod 7 is respectively installed on the upper ends of the two vertical brackets 6, and the pre...

Embodiment 2

[0048] The test method of rapid detection asphalt deformation and deformation recovery of the present invention, the method is specifically as follows:

[0049] S1. Melt any type of asphalt to be tested and pour it into the asphalt storage box 1, and add the asphalt to a height of 2 / 3 of the body of the asphalt storage box 1;

[0050] S2. Put the asphalt in the asphalt storage box 1 into a high and low temperature temperature box for heat preservation, so that the asphalt reaches the required temperature; wherein, the temperature can be 20°C or -5°C respectively;

[0051]S3. Put the frame as a whole on the universal press, and fix the LVDT on the horizontal bracket with 7 bars;

[0052] S4. Place the insulated asphalt storage box 1 in the center of the support base 5, place the penetration indenter 2 in the center of the asphalt in the asphalt storage box 1, and gently press the LVDT against both sides of the upper end of the penetration indenter, and place the LVDT zeroing; ...

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Abstract

The invention discloses a device for rapidly detecting asphalt deformation and deformation recovery and a test method, belongs to the technical field of road engineering, and aims to solve the technical problem of how to rapidly evaluate and analyze asphalt performance. According to the invention, the device structurally comprises a frame body, and an asphalt storage box is arranged at the bottom of the frame body; a penetration pressure head is arranged above the asphalt storage box, a universal press pressure head is arranged above the penetration pressure head, and displacement sensors are arranged on the two sides of the universal press pressure head respectively. The method specifically comprises the following steps: S1, melting any type of asphalt to be detected, and pouring the molten asphalt into an asphalt storage box, wherein the asphalt is added to the 2 / 3 position of the box body of the asphalt storage box; S2, placing the asphalt placed in the asphalt storage box in a high-low temperature box for heat preservation, so that the asphalt reaches the needed temperature; and S3, placing the whole frame body on a universal press, and fixing the displacement sensor to the transverse support connecting rod.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a device and a test method for rapidly detecting asphalt deformation and deformation recovery. Background technique [0002] At present, the evaluation of asphalt performance in the domestic road engineering industry is mainly based on the three main indicators of penetration, viscosity and softening point. In addition to the penetration and viscosity indicators, the evaluation method of asphalt rheological properties is often used internationally. Bitumen is PG graded. However, there are still deficiencies in the existing asphalt evaluation methods, such as the determination of asphalt penetration and viscosity, which is essentially an empirical method and lacks scientific basis. It is relatively more suitable for matrix asphalt. Asphalt results are more dispersed, leading to greater bias. At the same time, only the properties of the asphalt when loaded are obtained, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/06
CPCG01N3/08G01N3/066G01N2203/0003G01N2203/0019G01N2203/0075G01N2203/0617G01N2203/0682
Inventor 杜建马士杰胡超韦金城张晓萌李理徐希忠王海宁陈婷婷许勇孙强孙兆云李夏江照伟张磊
Owner SHANDONG HI SPEED GRP CO LTD
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