On-site rapid detection device for impervious performance of concrete structure

Abstract

The utility model relates to a rapid detection device, in particular to a concrete structure impermeability on-site rapid detection device which comprises an air permeability test assembly and a water absorption test assembly, and the air permeability test assembly is communicated through an air injection assembly; the gas injection assembly comprises a first gas injection pipe and a second gas injection pipe, the first gas injection pipe is communicated with the air permeability testing assembly, and the second gas injection pipe is communicated with the water absorption testing assembly; the first gas injection pipe and the second gas injection pipe are communicated with the gas pump through gas inlet pipes. The first gas injection pipe and the second gas injection pipe are respectively provided with a pressure display meter and a pressure control valve, the pressure display meter is used for controlling the pressure in the gas injection pipe, and the pressure control valve is used for controlling the opening and closing of the gas injection pipe. According to the utility model, the concrete detection efficiency is improved, and the air permeability and the water absorption of the concrete can be simultaneously detected without waiting for one hour or replacing a test area.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rapid detection device, specifically relates to a concrete structure anti-permeability on -the -spot rapid detection device. BACKGROUND

[0002] Concrete is a kind of material that is widely used as building material, and its performance has important influence on the safety and durability of building, and the anti-permeability is one of the very important performances in concrete, which reflects the ability of resisting water penetration of concrete.

[0003] In many engineering fields, the surface durability of concrete, including water absorption and permeability to air and water of concrete, is detected, and the traditional detection method is to sample the concrete on site and then take back to laboratory for detection, which belongs to the damage detection, needs special technical workers, and is not suitable for the durability detection of concrete structure on site.

[0004] The current on-site concrete structure detection equipment usually carries out air permeability test first, and then carries out transposition or waits for 1 hour, and then carries out water absorption test, which undoubtedly reduces the test efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a concrete structure anti-permeability on-the-spot rapid detection device, and solves the problem of low test efficiency of the current equipment.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] A kind of concrete structure anti-permeability on-the-spot rapid detection device, including air permeability test component and water absorption test component, air permeability component is communicated by air injection component;The air injection component includes first air injection pipe and second air injection pipe, first air injection pipe is communicated with air permeability test component, second air injection pipe is communicated with water absorption test component;First air injection pipe and second air injection pipe are communicated with air pump by air inlet pipe.

[0008] Further, pressure indicating meter and pressure control valve are respectively arranged on the first air injection pipe and the second air injection pipe, pressure indicating meter is used to control the pressure in air injection pipe, and pressure control valve controls the opening and closing of air injection pipe.

[0009] Further, the air permeability test component includes bottom ring, first base and first main body, bottom ring is arranged below first base, and first main body is arranged above first base.

[0010] Further, the water storage pool is provided with two water outlets, the bottom ring is provided with two water inlets, and the bottom ring is provided with a test hole; the two water outlets are communicated with the water inlets through a first water injection pipe and a second water injection pipe, and the two water inlets are communicated with the test hole; the first water injection pipe is provided with a water stop valve and a water pump, the water stop valve is used for controlling the flow, and the water pump is used for controlling the opening and closing of the water injection pipe; the second water injection pipe is provided with a stop valve and a pressure pump.

[0011] Further, the water storage pool is provided with two water outlets, the bottom ring is provided with two water inlets, and the bottom ring is provided with a test hole; the two water outlets are communicated with the water inlets through a first water injection pipe and a second water injection pipe, and the two water inlets are communicated with the test hole; the first water injection pipe is provided with a water stop valve and a water pump, the water stop valve is used for controlling the flow, and the water pump is used for controlling the opening and closing of the water injection pipe; the second water injection pipe is provided with a stop valve and a pressure pump.

[0012] Further, the first main body and the second main body are respectively provided with a tapered air injection groove, the tapered air injection groove of the first main body is communicated with the first air injection pipe, and the tapered air injection groove of the second main body is communicated with the second air injection pipe.

[0013] Further, the first base and the second base are respectively provided with a limiting groove, and the first main body and the second main body are provided with a limiting part, and the limiting part is matched with the limiting groove.

[0014] Further, the water storage pool is provided with a water inlet pipe.

[0015] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0016] The utility model discloses air permeability test assembly and water absorption test assembly, can detect the air permeability and water absorption of concrete on the spot simultaneously, need not first detect the air permeability of concrete, then wait for an hour or replace test area and detect the water absorption of concrete again. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a kind of concrete structure anti-permeability on-site rapid detection device schematic view.

[0018] Figure 2 It is a kind of concrete structure anti-permeability on-site rapid detection device front view.

[0019] Figure 3 It is a kind of concrete structure anti-permeability on-site rapid detection device side view.

[0020] In the diagram: 1. First air injection pipe; 2. Second air injection pipe; 3. Air inlet pipe; 4. Air pump; 5. Pressure gauge; 6. Pressure control valve; 11. Bottom ring; 12. First base; 13. First main body; 21. Second base; 22. Second main body; 23. Water storage tank; 24. Water inlet pipe; 25. First water injection pipe; 26. Second water injection pipe; 27. Water pump; 28. Stop valve; 29. ​​Pressure pump; 30. Water stop valve; 31. Test hole. Detailed Implementation

[0021] like Figure 1 As shown, a rapid on-site testing device for the impermeability of concrete structures includes an air permeability testing component and a water absorption testing component. The air permeability testing component is connected via an air injection component. The air injection component includes a first air injection pipe 1 and a second air injection pipe 2. The first air injection pipe 1 is connected to the air permeability testing component, and the second air injection pipe 2 is connected to the water absorption testing component. The first air injection pipe 1 and the second air injection pipe 2 are connected to an air pump 4 via an air inlet pipe 3. A pressure gauge 5 and a pressure control valve 6 are respectively installed on the first air injection pipe 1 and the second air injection pipe 2. The pressure gauge 5 is used to control the pressure in the air injection pipe, and the pressure control valve 6 controls the opening and closing of the air injection pipe. First, the air permeability testing component and the water absorption testing component are placed on the concrete specimen to be tested. Then, the air pump 4 injects air into the first air injection pipe 1 and the second air injection pipe 2 through the air inlet pipe 3. Simultaneously, the pressure gauges 5 on the first air injection pipe 1 and the second air injection pipe 2 are observed to see if a specified reading is reached. Once the specified reading is reached, the test begins. The air permeability testing assembly includes a bottom ring 11, a first base 12, and a first body 13. The bottom ring 11 is located below the first base 12, and the first body 13 is located above the first base 12.

[0022] like Figure 2 As shown, the pressurized air inside the air injection assembly gradually dissipates on the concrete surface, and the pressure in the first air injection pipe 1 gradually decreases. Technicians record the readings on pressure gauge 5 every minute. The test lasts for 15 minutes, with 15 readings recorded, or the test can be stopped when the pressure has disappeared before 15 minutes and the same reading is recorded. The pressure decays logarithmically rather than linearly. Therefore, if the test lasts for 15 minutes, the linear decay curve between the 5th and 15th minutes is used as an indicator of air permeability, in units of Ln / min. If the pressure becomes zero before 15 minutes, the data is calculated from the start of the test to determine the slope.

[0023] like Figure 3As shown, the water absorption test assembly comprises a bottom ring 11, a second base 21, a second body 22 and a water reservoir 23; the bottom ring 11 is arranged below the second base 21, the second body 22 is arranged above the second base 21, and the water reservoir 23 is arranged above the second body 22. Two water outlets are arranged on the water reservoir 23, two water inlets are arranged on the bottom ring 11, and a test hole 31 is arranged on the bottom ring 11; the two water outlets are communicated with the water inlets through a first water injection pipe 25 and a second water injection pipe 26 respectively, and the two water inlets are communicated with the test hole 31 respectively; a water stop valve 30 and a water pump 27 are arranged on the first water injection pipe 25, the water stop valve 30 is used for controlling the flow, and the water pump 27 is used for controlling the opening and closing of the water injection pipe; a stop valve 28 and a pressure pump 29 are arranged on the second water injection pipe 26.

[0024] When the water absorption test assembly is carried out, the water reservoir 23 is provided with a water inlet pipe 24. Water enters the test hole 31 from the water reservoir along the first water injection pipe 25, air is discharged from the second air injection pipe 2, and at the same time, water enters the pressure pump 29 along the second water injection pipe 26. At this time, the valve is closed, and the pressure pump 29 is used to apply pressure to the test hole 31. The test starts, and at this time, the pressure water can be considered to be absorbed by the capillary of the concrete surface rather than to flow due to the pressure. When the water is absorbed by the capillary of the concrete surface, the water pressure in the test hole 31 has a downward trend; therefore, the water pressure is maintained by the pressure pump 29. Within 15 minutes of the test, the water injection amount of the pressure pump 29 into the test chamber is measured and stored once per minute, the water absorption amount during the test is recorded, and the water amount and the square root of time are in a linear relationship

[0025] The first body 13 and the second body 22 are respectively provided with a tapered air injection groove, the tapered air injection groove of the first body 13 is communicated with the first air injection pipe 1, and the tapered air injection groove of the second body 22 is communicated with the second air injection pipe 2. The tapered air injection groove facilitates air injection from the top and improves the sealing performance. The first base 12 and the second base 21 are respectively provided with a limiting groove, and the first body 13 and the second body 22 are respectively provided with a limiting portion, the limiting portion is matched with the limiting groove.

[0026] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples, and the changes, modifications, additions or replacements made by the person skilled in the art within the essential scope of the present application also belong to the protection scope of the present application.

Claims

1. A device for rapid field detection of impermeability of concrete structures, characterized in that, The air permeability test assembly and the water absorption test assembly are connected through an air injection assembly; the air injection assembly comprises a first air injection pipe and a second air injection pipe, the first air injection pipe is connected with the air permeability test assembly, and the second air injection pipe is connected with the water absorption test assembly; the first air injection pipe and the second air injection pipe are connected with an air pump through an air inlet pipe.

2. The device for rapid detection of impermeability of concrete structures according to claim 1, characterized in that, The first air injection pipe and the second air injection pipe are respectively provided with a pressure gauge and a pressure control valve, the pressure gauge is used for controlling the pressure in the air injection pipe, and the pressure control valve is used for controlling the opening and closing of the air injection pipe.

3. The device for rapid detection of impermeability of concrete structures according to claim 1, characterized in that, The air permeability test assembly comprises a bottom ring, a first base and a first main body, the bottom ring is arranged below the first base, and the first main body is arranged above the first base.

4. The device for rapid detection of impermeability of concrete structures according to claim 3, characterized in that, The water absorption test assembly comprises a bottom ring, a second base, a second main body and a water storage pool, the bottom ring is arranged below the second base, the second main body is arranged above the second base, and the water storage pool is arranged above the second main body.

5. The device for rapid detection of impermeability of concrete structures according to claim 4, characterized in that, The water storage pool is provided with two water outlets, the bottom ring is provided with two water inlets, and the bottom ring is provided with a test hole; the two water outlets are connected with the water inlets through a first water injection pipe and a second water injection pipe, and the two water inlets are connected with the test hole; the first water injection pipe is provided with a water stop valve and a water pump, the water stop valve is used for controlling the flow, and the water pump is used for controlling the opening and closing of the water injection pipe; the second water injection pipe is provided with a stop valve and a pressure pump.

6. The device for rapid detection of impermeability of concrete structures according to claim 4, characterized in that, The first main body and the second main body are respectively provided with a tapered air injection groove, the tapered air injection groove of the first main body is connected with the first air injection pipe, and the tapered air injection groove of the second main body is connected with the second air injection pipe.

7. The device for rapid detection of impermeability of concrete structures according to claim 4, characterized in that, The first base and the second base are respectively provided with a limiting groove, the first main body and the second main body are respectively provided with a limiting part, and the limiting part is matched with the limiting groove.

8. The device for rapid detection of impermeability of concrete structures according to claim 4, characterized in that, The water storage pool is provided with a water inlet pipe.

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