Method for evaluating anti-clogging performance of porous asphalt mixture

An asphalt mixture, anti-clogging technology, applied in the direction of suspension and porous material analysis, measuring devices, scientific instruments, etc., can solve the problem that there is no way to optimize anti-clogging performance, good porous asphalt mixture, etc.

Inactive Publication Date: 2012-06-27
CHANGAN UNIV
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the current porous asphalt mixture evaluation system, there is no relevant method related to the evaluation of the anti-clogging performance of the mixture. Therefore, in the design and comparison of the mixture, there is no way to optim

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for evaluating anti-clogging performance of porous asphalt mixture
  • Method for evaluating anti-clogging performance of porous asphalt mixture
  • Method for evaluating anti-clogging performance of porous asphalt mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] According to the technical solution of the present invention, this embodiment provides a method for evaluating the anti-clogging performance of porous asphalt mixture.

[0029] This method first obtains porous asphalt mixture specimens, and can adopt the compaction method (T0702-2000) in the "Test Regulations for Asphalt and Asphalt Mixtures in Highway Engineering" (JTJ052-2000) to form a standard Marshall specimen, or use the wheel rolling method (T0703-1993) formed rutting plate specimens, or the sampling method (T0901-2008) given in the current "Highway Subgrade Pavement Field Test Regulations" (JTG E60-2008) can be used to drill compacted asphalt mixed with a drilling machine Pavement core samples. Since the CT scanning equipment has certain requirements on the size of the object to be scanned, it is necessary to cut the test piece according to the size requirements of the equipment if necessary.

[0030] For the cross-sectional image of the specimen, use image pro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for evaluating anti-clogging performance of a porous asphalt mixture. According to the method, a horizontal or vertical cross-section image of a test piece is acquired by the adoption of CT scan equipment. Image software is applied to process the acquired CT image, including threshold processing, gap fitting, gap area and quantity statistics and the like. Cross-section image information, mainly including cross-section average gap quantity, cross-section gap gross area and average single gap area, can be calculated. Quantitative evaluation can be carried out on the anti-clogging performance of the porous asphalt mixture test piece according to a parameter value of the average single gap area. The larger the average single gap area value, the better the anti-clogging performance of the mixture; and the smaller the average single gap area value, the poorer the anti-clogging performance of the mixture. The method provided by the invention can be used to evaluate the anti-clogging performance of the porous asphalt mixture, thus comparing and selecting porous asphalt mixtures of different materials from the angle of prolonging service function of pavement.

Description

technical field [0001] The invention relates to an evaluation method, in particular to an evaluation method for the anti-clogging performance of porous asphalt mixture. Background technique [0002] Porous asphalt concrete (PAC), as an environmentally friendly pavement material, has many advantages such as drainage, noise reduction, anti-skid, safety, etc., and has been more and more widely used in pavement engineering. Different from the conventional compact asphalt mixture, the porous asphalt mixture has a skeleton void structure with a porosity of about 20%. During long-term use, there is a problem of clogging the voids, resulting in the attenuation of the pavement function. [0003] Porous asphalt mixtures composed of different materials have large differences in the size and spatial distribution of microscopic voids, resulting in differences in the anti-clogging performance of porous asphalt mixtures. The anti-clogging performance of porous asphalt mixture has a direct...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N15/08
Inventor 蒋玮沙爱民肖晶晶裴建中王振军
Owner CHANGAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap