Test method for asphalt mixture pull-out test

A technology of asphalt mixture and pull-out test, which is applied in the direction of applying stable tension/pressure to test the strength of materials, analyzing materials, and adopting mechanical devices. It can solve the problems of affecting test results, uneven bonding of bonding surfaces, and pulling apart To achieve the effect of facilitating data collection, convenient recording and use, and improving accuracy

Pending Publication Date: 2020-08-28
JILIN JIAPENG GRP
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far in my country, in the new version of the "Draft for Comments on Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" in 2019, the adhesive layer oil bond strength test (pull-out method) has been added, and the supporting equipment requires additional fixtures for the Marshall testing machine. Moreover, during the drawing test, the longitudinal force of the Marshall instrument is uneven, which affects the test results, and the quality of the drawing equipment on the market is uneven, there is no unified technical parameter, and the inconsistency of the equipment may lead to inconsistent test results
[0004] The equipment on

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example one:

[0028] A test method for pull-out test of asphalt mixture. The test method for pull-out test of asphalt mixture requires the following tools and devices: one pull tester, one asphalt mixture sampler, and a cleaning machine One, one dryer, one thermostat, one AC power supply device.

[0029] The test method used for the pull-out test of asphalt mixture includes the following steps:

[0030] S1: Use an asphalt mixture sampler to take out a 150mm diameter and 70mm drawn specimen from the road in the area where the pull test is required, and cut the irregular part of the lower layer of the drawn specimen to clean it naturally Air-dry, and finally obtain a regular cylindrical core sample;

[0031] S2: According to the required test temperature, put the drawing test piece in a constant temperature curing box and keep it at constant temperature for more than four hours to ensure that the internal temperature of the drawing test piece reaches the test temperature requir...

Example Embodiment

[0038] Embodiment two:

[0039] A test method for pull-out test of asphalt mixture. The test method for pull-out test of asphalt mixture requires the following tools and devices: one pull tester, one asphalt mixture sampler, and a cleaning machine One, one dryer, one thermostat, one AC power supply device.

[0040] The test method used for the pull-out test of asphalt mixture includes the following steps:

[0041] S1: Use an asphalt mixture sampler to take out a 100mm diameter and 110mm drawing specimen from the road in the area where the pull test is required, and cut the irregular part of the lower part of the pull specimen to clean it naturally. Air-dry, and finally obtain a regular cylindrical core sample;

[0042] S2: According to the required test temperature, put the drawing test piece in a constant temperature curing box and keep it at constant temperature for more than four hours to ensure that the internal temperature of the drawing test piece reaches the test temperature r...

Example Embodiment

[0049] Example three;

[0050] A test method for pull-out test of asphalt mixture. The test method for pull-out test of asphalt mixture requires the following tools and devices: one pull tester, one asphalt mixture sampler, and a cleaning machine One, one dryer, one thermostat, one AC power supply device.

[0051] The test method used for the pull-out test of asphalt mixture includes the following steps:

[0052] S1: Use an asphalt mixture sampler to take out a drawn specimen with a diameter of 50mm and a height of 170mm from the road where the pull test is required, and cut the irregular part of the lower layer of the drawn specimen to clean it naturally. Air-dry, and finally obtain a regular cylindrical core sample;

[0053] S2: According to the required test temperature, put the drawing test piece in a constant temperature curing box and keep it at constant temperature for more than four hours to ensure that the internal temperature of the drawing test piece reaches the test tempe...

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 test method for an asphalt mixture pull-out test. In the present invention, the test method for the asphalt mixture pull-out test needs the following tools and devices: a pull-out tester is provided; an asphalt mixture sampler; a cleaning machine; a drying machine, a constant-temperature curing box, and an alternating current supply device; the method includes opening thepull-out tester; setting system parameters after startup, placing a drawing test piece in clamping openings of the upper clamp and the lower clamp, using a ratchet wrench for rotating a fastening bolt to clamp the test piece, starting the test can after the temperature of the constant-temperature temperature control box of the drawing test equipment reaches a set test temperature; and after the test is finished, enabling a computer to automatically collect and calculate a test result; the upper clamp mechanism and the lower clamp mechanism ensure that the fixed position of the drawing test piece is always in the center of the drawing force, and the heater and the condenser can keep the experimental environment temperature consistent with the experimental environment temperature during natural storage, thereby improving the experimental accuracy.

Description

technical field [0001] The invention belongs to the technical field of performance detection of asphalt mixture, in particular to a test method for drawing test of asphalt mixture. Background technique [0002] The bonding performance test of asphalt pavement bonding first appeared in the test of bridge deck waterproof materials. Most countries in Europe and the United States have relevant standards and specifications for special testing. my country's "Technical Specifications for Highway Asphalt Pavement Construction" (JTG-2004) requires The asphalt pavement adopts layered construction. Before paving a certain structural layer, the underlying layer should be treated to keep the surface clean, and the permeable layer oil should be spread between the base layer and the surface layer, and the sticky layer should be sprinkled between the surface layers. Oil, although the current specification stipulates the specification and dosage of penetrating layer oil and viscous layer oil, ...

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): G01N3/18G01N3/04G01N19/04
CPCG01N3/18G01N3/04G01N19/04G01N2203/0017G01N2203/0208G01N2203/0222G01N2203/0266G01N2203/0641G01N2203/0682G01N2203/0676
Inventor 高金龙尹建伟崔连友
Owner JILIN JIAPENG GRP
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