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A kind of adhesive pull-out strength test device and test method for steel bridge deck pavement

A testing device and a technology for pulling out strength, which is applied in the field of testing devices for pulling out strength of adhesives used in steel bridge deck pavement, can solve problems such as interface damage between resin adhesives and AB glue, and deviations in test results. Achieve the effects of easy portability and use, accurate curing time, and reduced damage

Active Publication Date: 2020-12-29
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional way to test the pullout strength is to use AB glue to bond the drawing head and the resin binder. When the bond strength between the AB glue and the resin binder is smaller than the bond strength between the steel plate and the resin binder , the interface between the resin adhesive and the AB adhesive is damaged, not the interface between the steel plate and the resin adhesive or the internal damage of the resin adhesive, which makes the test results deviate

Method used

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  • A kind of adhesive pull-out strength test device and test method for steel bridge deck pavement
  • A kind of adhesive pull-out strength test device and test method for steel bridge deck pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] First assemble the collar; the upper support structure; the height control screw; the lower support structure and the limit base as follows: figure 1 As shown in the structure, the steel panel and the drawing head are then ground and polished, and then the two sets of assembled structures are fixed on the steel panel in parallel, and the upper support structure is raised to the longest position, and finally the steel panel can be paved The area, and the steel panel and the device are placed on the horizontal tabletop, and the resin adhesive is poured later.

[0025] Mix type A resin, curing agent, asphalt and other additives according to a certain ratio, and mechanically stir until uniform, according to 1kg / m 2 The thickness of the paving, and according to the area calculated by the measurement, convert the quality of the binder required for paving. According to the calculated mass, the well-stirred mixture is poured on the treated steel panel, and the mixture is sprea...

Embodiment 2

[0029] First assemble the collar; the upper support structure; the height control screw; the lower support structure and the limit base as follows: figure 1 As shown in the structure, the steel panel and the drawing head are then ground and polished, and then the two sets of assembled structures are fixed on the steel panel in parallel, and the upper support structure is raised to the longest position, and finally the steel panel can be paved The area, and the steel panel and the device are placed on the horizontal tabletop, and the resin adhesive is poured later.

[0030] Mix B-type resin, curing agent and other additives according to a certain ratio, mechanically stir until uniform, according to 1kg / m 2 The thickness of the paving, and according to the area calculated by the measurement, convert the quality of the binder required for paving. According to the calculated mass, the well-stirred mixture is poured on the treated steel panel, and the mixture is spread evenly with...

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Abstract

The invention discloses a testing device for the pull strength of a binder for paving of a steel bridge deck, and a testing method. Each testing device body comprises a lantern ring, an upper supportstructure, a height control screw, a lower supporting structure and a limiting base; and the lantern rings are used for fixing a transverse rod connecting the two device bodies, the heights of the supporting structures are adjusted through the height control screws, and the limiting bases have magnetism and can be attracted on a steel plate. Meanwhile, the testing device is convenient to demount and mount, and carrying and field detection are easy. Compared with the prior art, by testing the pull strength of the binder in the solidification process, a curve with the solidification time as abscissas and the pull strength as ordinates is drawn, the turning point where the pull strength tends to be stable is found, the abscissa corresponding to the turning point is the complete solidificationtime, and the ordinate corresponding to the turning point is the pull strength of the binder.

Description

technical field [0001] The invention relates to a testing device and a testing method for the pulling-out strength of an adhesive used for steel bridge deck pavement, and belongs to the technical field of testing devices for the pulling-out strength of an adhesive used for steel bridge deck paving. Background technique [0002] In the steel bridge deck pavement project, the bonding layer not only plays the role of transition from the steel bridge deck to the upper layer of asphalt concrete, but also plays the role of waterproof and anti-corrosion. When the strength or curing time of the bonding layer does not meet the target requirements, delamination, detachment and other diseases often occur, seriously affecting the road performance and service life of the bridge. Therefore, it is very important to be able to effectively determine the curing time of the adhesive, understand the curing process, and accurately determine the pull-out strength. [0003] The traditional way to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 李洋于新司晶晶李宁董夫强唐伟
Owner HOHAI UNIV