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Device and method for detecting quality of slurry in post-tensioned prestressed duct

A detection device and prestressing technology, applied in the direction of material resistance, can solve the problems of affecting the quality of bridges and the lack of a good detection method for the fullness of corrugated concrete, so as to achieve novel detection methods, improve detection quality and detection success rate. , the effect of improving convenience

Pending Publication Date: 2020-09-15
SHANDONG TRANSPORTATION INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the bridge construction process, corrugated pipes need to be laid inside the bridge, and concrete needs to be poured inside the corrugated pipes to increase the strength of the bridge. The concrete filling degree inside the bellows pipes will directly affect the quality of the bridge, and the concrete filling degree inside the bellows pipes has not yet been well tested. method

Method used

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  • Device and method for detecting quality of slurry in post-tensioned prestressed duct
  • Device and method for detecting quality of slurry in post-tensioned prestressed duct
  • Device and method for detecting quality of slurry in post-tensioned prestressed duct

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Experimental program
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Effect test

Embodiment 1

[0036] combine Figure 1 to Figure 6 , a post-tensioning prestressed slurry quality detection device, including a bellows 1 and a resistance detector 2, the end of the bellows 1 is provided with a first connection hole 11, the first connection hole 11 has two Two first connection holes 11 are respectively provided on the left end and the right end of the bellows 1 .

[0037] The bellows 1 at the upper end of each first connection hole 11 is covered with a first metal cable tie 3, the first metal cable tie 3 is connected with a first conductive component 4, and the end of the first conductive component 4 passes through the first metal cable tie 3 and then connected in the first connecting hole 11.

[0038] The first conductive assembly 4 includes a first outer insulating sleeve 41 and a first conductive copper tube 42, the first conductive copper tube 42 is connected with a first conductive wire 43, and the first conductive wire 43 is connected to the resistance detector 2 thr...

Embodiment 2

[0045] A slurry quality detection method, using the above-mentioned slurry quality detection device in the post-tensioning prestressed channel, specifically comprising the following steps:

[0046] Step 1, provide conductive copper pipe, outer insulating sleeve, insulating glue and pliers, use pliers to remove the outer skin of the end of the first conductive wire 43, expose the conductive metal of the first conductive wire 43; Put the conductive metal into the narrow end of the first conductive copper tube 42, then use pliers to pinch the narrow end of the first conductive copper tube 42, so that the narrow end of the first conductive copper tube clamps the first conductive wire conductive metal. The first conductive copper tube 42 is in the shape of a tapered tube, and can better clamp the conductive metal of the first conductive wire after being pinched.

[0047] Step 2, filling the insulating glue into the first outer insulating sleeve 41, and then putting the first condu...

Embodiment 3

[0054] The above slurry quality detection method, through the use of conductive copper tubes, outer insulating sleeves and insulating glue, can better improve the accuracy of conduction and avoid the influence of external concrete mortar on conductive components. During the detection process, the head of the conductive component can be cut off according to the need, and the cross section of the conductive copper tube is exposed after cutting off. Since the conductive copper tube is covered with insulating glue inside and outside during the processing process, the conductive copper tube only passes through the exposed part. The cross section conducts electricity.

[0055] When the corrugated pipe is not filled with concrete mortar, the resistance detected by the resistance detector is infinite due to the contact between the conductive copper pipe and the air; when the conductive copper pipe is in contact with the concrete mortar, the resistance detected by the resistance detecto...

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Abstract

The invention discloses a device and a method for detecting the quality of slurry in a post-tensioned prestressed duct. The slurry quality detection device comprises a corrugated pipe and a resistancedetector; two first connecting holes are formed in the end part of the corrugated pipe, the corrugated pipe at the upper end of each first connecting hole is sleeved with a first metal ribbon, the first metal ribbon is connected with a first conductive assembly, and the end part of the first conductive assembly penetrates through the first metal ribbon and then is connected into the first connecting hole; the first conductive assembly comprises a first outer insulating sleeve and a first conductive copper pipe, the first conductive copper pipe is connected with a first conductive wire, and the first conductive wire is connected with the resistance detector through a resistance instrument connecting wire; the first outer insulating sleeve is filled with insulating glue, and the first conductive copper pipe is arranged in the insulating glue. The detection device can be used for more accurately detecting the concrete filling degree. The slurry quality detection method can be used for more conveniently detecting the compactness of concrete, and is convenient and simple to operate.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a post-tensioning prestressed slurry quality detection device and a detection method thereof. Background technique [0002] During the bridge construction process, corrugated pipes need to be laid inside the bridge, and concrete needs to be poured inside the corrugated pipes to increase the strength of the bridge. The concrete filling degree inside the bellows pipes will directly affect the quality of the bridge, and there is no good detection of the concrete filling degree inside the bellows pipes. method. Therefore, it is very necessary to develop a device for detecting the concrete fullness inside the bellows. Contents of the invention [0003] The object of the present invention is to provide a post-tensioning prestressed cavity slurry quality detection device, the detection device can more accurately detect the degree of concrete fullness, and the detection effect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/06
CPCG01N27/06
Inventor 郭保林刘帅施晓许召军王学成邢又家姜瑞双冯泽欢毕炳祥
Owner SHANDONG TRANSPORTATION INST
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