Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rut test system for asphalt mixture in hydrodynamic pressure environment and test method

A technology of asphalt mixture and hydrodynamic pressure, which is applied in the application of stable tension/pressure to test the strength of materials, analyze materials, and use repetitive force/pulse force to test the strength of materials, etc. It can solve the limited actual effect of hydrodynamic pressure, etc. problems, to achieve the effects of rich test evaluation indicators, reasonable and reliable test results, and convenient and fast test operation procedures

Pending Publication Date: 2019-06-25
UNIV OF SCI & TECH BEIJING
View PDF4 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this kind of rutting test method, limited by the conditions of the indoor test, the speed of the test wheel traveling back and forth is quite different from the actual speed of the vehicle on the asphalt road. The practical effect of hydrodynamic pressure is limited

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
  • Rut test system for asphalt mixture in hydrodynamic pressure environment and test method
  • Rut test system for asphalt mixture in hydrodynamic pressure environment and test method
  • Rut test system for asphalt mixture in hydrodynamic pressure environment and test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0031] The invention provides a rutting test system and a test method in an asphalt mixture hydrodynamic pressure environment.

[0032] like figure 1 As shown, the test system includes four parts: hydrodynamic pressure generating device, wheel system loading device, asphalt mixture specimen fixing device and temperature-controlled water bath device, in which the hydrodynamic pressure generating device, wheel system loading device, asphalt mixture specimen The fixing device and the temperature-controlling water bath device are connected and fixed to the system frame 1 in order from top to bottom, and the dynamic water pressure generating device, the wheel system loading device and the asphalt mixture specimen fixing device are connected to each other thro...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a rut test system for an asphalt mixture in a hydrodynamic pressure environment and a test method, which belong to the technical field of road engineering material performance test. The system comprises a hydrodynamic pressure generating device, a wheel system loading device, an asphalt mixture sample fixing device and a temperature control water bath device. An external servo hydraulic system drives a piston to perform reciprocating movement along a vertical direction according to a preset frequency and an amplitude, a hydrodynamic pressure environment is formed, and the process of generating instantaneous hydrodynamic pressure when a vehicle tire quickly drives on an actual asphalt pavement can be effectively simulated. Constant wheel contact pressure is realized through setting of a linear bearing sliding sleeve, the rut depth is monitored in real time by adopting a form of fixing two ends of a displacement sensor, and the rut test for the asphalt mixture in the hydrodynamic pressure environment can be realized to evaluate the water damage resistance performance. The process of applying the vehicle load to the asphalt mixture in the hydrodynamic pressure environment can be realized, and the specific influences of the hydrodynamic pressure caused by the vehicle tire on the asphalt pavement can be more realistically simulated and quantitatively evaluated.

Description

technical field [0001] The invention relates to the technical field of performance testing of road engineering materials, in particular to a rutting test system and a test method for an asphalt mixture hydrodynamic pressure environment. Background technique [0002] The asphalt pavement is exposed to the natural environment. When the vehicle is driving in rainy weather, the positive and negative alternating cycle hydrodynamic pressure generated by the repeated extrusion and suction of the tire will cause the asphalt film to peel off from the surface of the aggregate, and eventually develop into loose, potholes. Water damage and other problems, resulting in reduced service performance and shortened service life of asphalt pavement. Different from the water damage process of asphalt mixture, which is different from the static water immersion and freeze-thawing forms required by the current regulations in my country, the damage mechanism of dynamic water pressure is more consis...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/36G01N3/12G01N3/04
Inventor 王文涛汪林兵杨海露孙凤艳
Owner UNIV OF SCI & TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com