Device and method for detecting corrosion degree of steel bars of reinforced concrete foundation of iron tower

A technology for reinforced concrete and steel bar corrosion, which is applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve problems such as no mention of steel bar detection, and achieve the effect of convenient, accurate and convincing detection work

Pending Publication Date: 2018-10-19
CHINA THREE GORGES UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method does not mention the detection of steel bars in underground concrete, and only one factor of potential difference is used as the standard for evaluating corrosion, and many factors that affect steel bar corrosion are not comprehensively drawn to draw conclusions

Method used

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  • Device and method for detecting corrosion degree of steel bars of reinforced concrete foundation of iron tower
  • Device and method for detecting corrosion degree of steel bars of reinforced concrete foundation of iron tower
  • Device and method for detecting corrosion degree of steel bars of reinforced concrete foundation of iron tower

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Experimental program
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Effect test

Embodiment 1

[0027] Such as Figure 1-3 Among them, a steel tower reinforced concrete foundation steel bar corrosion degree detection device includes an operation panel 1, a single-chip microcomputer 4, and a sensor 15, and the single-chip microcomputer 4 is provided with an AD conversion module 16, a micro-processing module 17 and an execution module 18;

[0028] The operation panel 1 is provided with a display module 3, a key input module 2, a single-chip microcomputer 4 and a storage module 19;

[0029] The sensor 15 also includes a soil temperature and humidity sensor 8 , a soil pH value sensor 9 , a soil chloride ion sensor 10 and a resistivity detector 11 .

[0030] In a preferred solution, the operation panel 1 is connected to one end of the data transmission line 6 , the other end of the data transmission line 6 is connected to the metal probe 7 , and both ends of the data transmission line 6 are provided with USB interfaces 5 .

[0031] In the preferred scheme, the metal probe 7 ...

Embodiment 2

[0033] On the basis of embodiment 1, adopt following method to carry out iron tower reinforced concrete foundation steel bar corrosion degree detection:

[0034] 1) Select several detection areas near the concrete tower base 12 to be detected;

[0035] 2) Insert three metal probes 7 with soil temperature and humidity sensor 8, soil pH value sensor 9, and soil chloride ion sensor 10 into the ground soil 14, and insert metal probe 7 with resistivity detector 11 into the fixed On the concrete tower base 12 with steel tower legs 13;

[0036] 3) Wait for the display module 3 on the operation panel 1 to display the readings fed back by the sensor 15, and then continue to select different positions to test three times, and take the average value of the readings;

[0037] 4) The data is calculated by the single-chip microcomputer 4 and finally displayed on the display module 3 on the operation panel 1 .

[0038] In a preferred solution, the detection area should be selected within a...

Embodiment 3

[0041] On the basis of embodiment 2, adopt following data to carry out iron tower reinforced concrete foundation steel bar corrosion detection calculation:

[0042] The degree of corrosion of steel bars is calculated based on the evaluation model based on many factors, including: the resistivity of concrete, the pH value of the soil, the temperature and humidity of the soil, and the chloride ion content of the soil. The evaluation model is shown in Equation 1

[0043] ρx=ρα1(RH / 45)β1 (T / 10) β2 (PH / 14) β3 (cl - / 100) β4

[0044] In the formula:

[0045] ρx: the corrected concrete resistivity,

[0046] ρ: is the measured concrete resistivity,

[0047] RH : is the measured soil humidity,

[0048] T : is the measured soil temperature,

[0049] PH: the measured soil pH value,

[0050] cl - : is the measured soil chloride ion content,

[0051] α1, β1, β2, β3, β4: are undetermined coefficients.

[0052] According to the corrected concrete resistivity and steel bar corrosi...

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Abstract

The invention relates to a device and a method for detecting corrosion degree of steel bars of a reinforced concrete foundation of an iron tower. The device comprises an operation panel, a single chipmicrocomputer and sensors, wherein an AD (analog to digital) conversion module, a microprocessing module and an execution module are arranged in the single chip microcomputer; a display module, a press key input module, the single chip microcomputer and a storage module are arranged on the operation panel; the sensor comprise a soil temperature and humidity sensor, a soil pH (potential of hydrogen) value sensor, a soil chloride ion sensor and a resistivity detector. By adopting the structure, the device has the advantages that on one hand, the corrosion degree of the steel bars in the concrete tower foundation can be detected without excavating the soil and destroying the concrete tower foundation structure; on the other hand, the corrosion degree of the steel bar can be quickly analyzedat site.

Description

technical field [0001] The invention relates to the field of structural safety detection, in particular to a device and method for detecting the corrosion degree of reinforced concrete foundation steel bars of iron towers. Background technique [0002] As my country's transmission line system becomes more and more complete, more and more transmission towers are erected to transmit electric energy to all regions of the country, which facilitates people's life and work. How to carry out non-destructive testing on the corrosion degree of steel bars in the reinforced concrete foundations of iron towers buried in corrosive soil or for a long time, to judge their safety, and to ensure the safe operation of overhead transmission lines has become an urgent problem to be solved by the power sector. The reinforced concrete foundation of the iron tower mainly consists of steel and concrete. The concrete protective layer is prone to cracking or damage under the action of load or corrosi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 王彦海时文峰李清泉陈波谭超
Owner CHINA THREE GORGES UNIV
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