Asphalt regenerant diffusion test device and test method

A technology of asphalt regenerant and diffusion test, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as insufficient efficiency and accuracy, and achieve the effect of accurate diffusion rate

Active Publication Date: 2017-11-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide asphalt rejuvenator diffusion test device and test method in order to solve the problem that there is no relevant experimental device and evaluation method for the diffusion of asphalt regenerant at present.

Method used

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  • Asphalt regenerant diffusion test device and test method
  • Asphalt regenerant diffusion test device and test method
  • Asphalt regenerant diffusion test device and test method

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specific Embodiment approach 1

[0026] Specific Embodiment 1: The asphalt regeneration agent diffusion test device in this embodiment includes a dissolving cylinder 1, a sample holder 2, a collecting device 8, a liquid inlet pipe 3 and a liquid outlet pipe 4, and the dissolving cylinder 1 is formed into a cylindrical shape by a cylinder wall and a cylinder bottom , there is an opening 9 in the center of the bottom of the cylinder, the thickness of the bottom of the cylinder is sloped from thin to thick along the radial direction of the dissolving cylinder 1, the liquid outlet pipe 4 communicates with the opening 9, and the collecting device 8 is located below the liquid outlet pipe 4, " One end of the L"-shaped liquid inlet pipe 3 is connected with the liquid outlet pipe 4, and the other end of the liquid inlet pipe 3 is opened as a liquid inlet, and a valve 7 is arranged on the liquid inlet pipe 3 and the liquid outlet pipe 4 to accept the sample. The dish 2 is located at the bottom of the dissolving cylinde...

specific Embodiment approach 2

[0027] Embodiment 2: This embodiment differs from Embodiment 1 in that the material of the dissolution cylinder 1 , the sample holder 2 , the collection device 8 , the liquid inlet pipe 3 and the liquid outlet pipe 4 is metal.

specific Embodiment approach 3

[0028] Embodiment 3: This embodiment is different from Embodiment 2 in that the metal material is stainless steel or aluminum alloy.

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Abstract

Asphalt regenerant diffusion test device and test method, the invention relates to a test device and an application method for evaluating the diffusion performance of asphalt regenerant, which aims to solve the problem that there is no relevant experimental device and evaluation method for the diffusion of asphalt regenerant. The test device includes a dissolution barrel, a sample holder, a collection device, a liquid inlet pipe and a liquid outlet pipe. The test method is to firstly treat the asphalt sample with the regenerated agent standing still, weigh the asphalt sample and measure the height of the sample, add trichlorethylene to clean the asphalt, repeat the cleaning process several times, and measure the discharged liquid and solid phase. According to the four components of the compound, the relative content of the regenerant is calculated, and then the diffusion rate of the regenerant is obtained through the diffusion depth. The present invention utilizes the characteristic of high solubility of trichlorethylene to asphalt, adopts the method of layered dissolution to gradually dissolve the asphalt sample treated with the regenerant, and then conducts an investigation on the diffusion characteristics of the regenerant according to the composition analysis results of the dissolved solution. analyze.

Description

technical field [0001] The invention relates to a test device for evaluating the diffusion performance of an asphalt regenerant and an application method thereof. Background technique [0002] The large-scale construction of my country's highways dates back to the mid-1980s. After more than 30 years of construction, by 2015, the total mileage of my country's highways reached more than 4.5 million kilometers, of which 108,000 kilometers were expressways, 80% of which were asphalt concrete. pavement. Up to now, a considerable number of asphalt pavements have reached the end of their service life and are facing large-scale maintenance and even reconstruction. In addition, with the continuous development of my country's transportation industry, the rapid growth of traffic volume and vehicle load has caused the newly-built roads to be damaged to a certain extent in a short period of time, and necessary maintenance work is urgently needed to prolong the service life of the roads. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N13/00
Inventor 易军艳许勐冯德成周长俊王东升
Owner HARBIN INST OF TECH
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