Device for detecting concrete permeability on surface layer

A detection device and permeability technology, applied in the direction of measurement device, permeability/surface area analysis, suspension and porous material analysis, etc., to achieve the effects of easy production and processing, improved service life, and simple structure

Inactive Publication Date: 2011-01-26
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Harmful substances such as carbon dioxide, water, chloride ions, etc. penetrate into the concrete, and complex physical and chemical effects will occur, destroying the initial composition of the concrete, causing corrosion of the steel bars in the concrete, and reducing the strength, thereby greatly reducing the cost of the construction project. service life, resulting in huge economic losses, at present, there is no long-term, real-time monitoring of concrete surface permeability measurement device

Method used

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  • Device for detecting concrete permeability on surface layer
  • Device for detecting concrete permeability on surface layer

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] Embodiment 1: As shown in Figure 1, the detection device for detecting the permeability of the concrete surface described in this embodiment includes a pre-embedded pipe 2, a semi-embedded pipe 3, a short pipe 4, a nut 5, a first humidity Sensor 6, the second humidity sensor 7, the first partition 4-1 with through holes and the second partition 4-2 with through holes; the side wall of the embedded pipe 2 is evenly opened with several through holes 2-1, there is a hole 5-1 on the top of the nut 5, the middle side wall of the embedded pipe 2 and one end of the half-embedded pipe 3 are vertically fixed together to form a T-shape, the embedded pipe 2 and the half-embedded pipe The buried pipe 3 is connected, and the side wall of the other end of the semi-embedded pipe 3 is provided with an external thread 3-1 and is threadedly connected with one end of the short pipe 4. The other end of the short pipe 4 is screwed into the nut 5, and the short pipe 4 A first partition 4-1 w...

specific Embodiment approach 2

[0010] Embodiment 2: The pre-embedded pipe 2 and semi-embedded pipe 3 in this embodiment are all stainless steel pipes. Stainless steel pipes are not easily oxidized. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0011] Specific embodiment three: As shown in Figure 1, the detection device described in this embodiment also includes a pre-embedded column core 2-2 and a half-embedded column core 3-2, and a pre-embedded column core 2-2 and a half-embedded column core 3-2 are vertically connected, the pre-embedded column core 2-2 is arranged in the pre-embedded pipe 2, and the half-embedded column core 3-2 is arranged in the half-embedded pipe 3. The purpose of setting the embedded column core 2-2 and the semi-embedded column core 3-2 is to reduce the space volume of the embedded tube 2 and the semi-embedded tube 3, thereby reducing the gas space and improving the accuracy of humidity measurement . Other compositions and connections are the same as those in the first or second embodiment.

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Abstract

The invention relates to a device for detecting concrete permeability on the surface layer, which can carry out long-term, non-destructed and real-time monitoring on the concrete permeability on the surface layer. The invention is characterized in that side walls of an embedded pipe are provided with a plurality of through holes; the crown of a screw cap is provided with holes; the middle side wall of the embedded pipe is vertically and fixedly connected with one end of a semi-embedded pipe; the embedded pipe is communicated with the semi-embedded pipe; the side wall at the other end of the semi-embedded pipe is provided with an outside thread and is connected with a thread at one end of a short pipe; the other end of the short pipe is screwed in the screw cap; a first humidity sensor is positioned in a first chamber and is installed on a first partition board with through holes; a second humidity sensor is positioned in a third chamber and is installed on a second partition board with through holes. The device can conveniently and rapidly detect the concrete permeability on the surface layer and necessary protective measures can be timely adopted on serviced building structures according to the detection result of the concrete permeability on the surface layer to increase the service life of the building works.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device for detecting the permeability of the concrete surface layer. Background technique [0002] The service life of reinforced concrete structures is closely related to its permeability. Harmful substances such as carbon dioxide, water, chloride ions, etc. penetrate into the concrete, and complex physical and chemical effects will occur, destroying the initial composition of the concrete, causing corrosion of the steel bars in the concrete, reducing the strength, and greatly reducing the cost of the construction project. The service life causes huge economic losses. At present, there is no long-term and real-time monitoring device for measuring the permeability of the concrete surface. Contents of the invention [0003] The object of the present invention is to provide a detection device for detecting the permeability of the concrete surface, so as to monitor the permeab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08
Inventor 杨英姿徐定杰王力高小建邓宏卫
Owner HARBIN INST OF TECH
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