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A test device for the sealing performance of cement concrete pavement bottom

A technology for cement concrete road and sealing performance, which is applied to measuring devices, using liquid/vacuum for liquid tightness measurement, and applying stable tension/pressure to test material strength, etc., can solve the problem of unsuitable cement concrete road panels Bottom application scenarios and other issues

Active Publication Date: 2019-04-26
SHANGHAI TONEKER TRANSPORTATION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current domestic leak test devices and test methods are not suitable for the application scenarios of prefabricated cement concrete pavement slab bottoms

Method used

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  • A test device for the sealing performance of cement concrete pavement bottom
  • A test device for the sealing performance of cement concrete pavement bottom
  • A test device for the sealing performance of cement concrete pavement bottom

Examples

Experimental program
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Effect test

Embodiment 1

[0058] The specific parameters of the device used are as follows:

[0059] The bottom plate adopts a square with a side length of 80 cm and a steel plate with a thickness of 8 mm. At the top of the steel plate and the middle of the plate edge, 5cm away from the edge, open 8 holes with a diameter of 20mm as bolt fixing holes. Bolts with a diameter of 16mm and a length of 250mm are used to limit the lateral displacement of the side wall and top plate of the box, and to adjust the distance between the bottom plate and the top plate.

[0060] The box body is made of 4 wooden veneers overlapping each other. The wood veneer has a length of 720mm, a width of 200mm, and a thickness of 20mm. The overlapping length of the wooden veneers is 20mm, forming a wooden box wall with an inner diameter of 700mm*700mm and a height of 200mm. The wooden veneers are fixed with iron nails and sealed with epoxy resin.

[0061] A sealing material is installed on the lower surface of the top plate, ...

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Abstract

The invention relates to the field of cement concrete engineering, in particular to a cement concrete pavement slab bottom sealing performance testing device. The cement concrete pavement slab bottom sealing performance testing device comprises a bottom plate and a top plate, a box provided with an upper opening is arranged between the bottom plate and the top plate, connecting parts which can shorten the space between the bottom plate and the top plate are arranged between the bottom plate and the top plate, and the cement concrete pavement slab bottom sealing performance testing device is further provided with a hydraulic measurement device intake and a test slurry intake. According to the cement concrete pavement slab bottom sealing performance testing device, when the amount of compression and input flow of a base course, slurry and a sealing material are given, hydraulic pressure in a stable state is measured to serve as an index to measure the sealing performance of the assembly type cement concrete pavement slab bottom.

Description

technical field [0001] The invention relates to the field of cement concrete engineering, in particular to a device for testing the sealing performance of cement concrete road slab bottoms. Background technique [0002] Cement concrete pavement is a widely used pavement form due to its own advantages. Generally, cement concrete pavement is paved by cast-in-place. This paving method has always been dominant because of its low price and convenient construction. After the cement concrete is poured, it needs a 28-day curing period to fully develop its strength. The temperature and humidity during the curing period have a great influence on the strength and durability of concrete. Since on-site maintenance is scattered, it is difficult to use advanced maintenance measures. With the improvement of traffic demand, these shortcomings that cast-in-place cement concrete cannot overcome are becoming more and more apparent. [0003] Prefabricated cement concrete pavement technology...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02G01N3/12
CPCG01M3/02G01N3/12G01N2203/0048G01N2203/0085
Inventor 赵鸿铎杨戈吴世涛杜浩赵基焕钟盛
Owner SHANGHAI TONEKER TRANSPORTATION TECH CO LTD
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