CN213209867U - Acid rain erosion resistance performance testing device for concrete - Google Patents
Acid rain erosion resistance performance testing device for concrete Download PDFInfo
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- CN213209867U CN213209867U CN202022157711.3U CN202022157711U CN213209867U CN 213209867 U CN213209867 U CN 213209867U CN 202022157711 U CN202022157711 U CN 202022157711U CN 213209867 U CN213209867 U CN 213209867U
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Abstract
The utility model belongs to building material capability test field relates to a concrete acid rain erosion resistance capability test device. The device comprises an acid rain storage tank, a dropping liquid bottle, an electric stirrer, a peristaltic pump, a PVC pipe and a spray head. Compared with the prior art, the utility model discloses following beneficial effect has: the simulation of the rainfall process is realized through the spray head, the control simulation of the rainfall is realized through adjusting the peristaltic pump, the control simulation of the acidity of acid rain is realized through the dropping liquid bottle, and in conclusion, the corrosion state of the concrete structure in the actual environment by the acid rain can be effectively simulated; the test device has simple structure and easy operation, and can realize the recycling of acid rain simulation solution; the process control degree is high, the device can adjust the pH value and the flow of the simulated acid rain solution in real time, and the environmental parameter can be controlled; the test device has wide application range, can be used for testing and evaluating the acid rain erosion resistance of other building materials such as concrete samples, mortar, stone and the like, and can also be used for testing and evaluating the erosion resistance of other salt solutions of the building materials.
Description
Technical Field
The utility model belongs to the technical field of building material capability test device, a concrete acid rain erosion resistance capability test device is related to.
Background
Acid rain refers to rain, snow or other forms of precipitation, which absorb and dissolve sulfur dioxide, nitrogen oxides and other acidic gas substances in the air during the formation and falling processes to form acidic precipitation with the pH value lower than 5.6. As the acidic substance, the acid rain contains not only H+、Mg2+The iso-cationic aggressive medium also contains SO4 2-、Cl-And (3) plasma etching media, wherein the etching can decompose hydration products in the concrete, generate holes and cracks, reduce or even lose the strength, and damage the building.
For building engineering, it is very important to find out the damage and deterioration mechanism of a concrete structure in an acid rain environment, and one of the prerequisites is to have a test device which can well simulate the corrosion of the concrete structure in an actual service environment by acid rain spray. At present, the devices and test methods for simulating the corrosion of concrete by acid rain mainly comprise two types: long-term soaking and dry-wet cycle soaking. Although both of these simulation devices and test methods are simple and easy to implement, they still have the following disadvantages: the two devices are both soaking type and are not in accordance with the actual rainfall scouring process; the acid rain solutions of the two types of devices are static and cannot reflect the scouring action of acid rain runoff; the two types of experimental devices are low in intelligent control degree, and the labor intensity of environmental parameter adjustment is high.
In summary, the existing test device for simulating the corrosion of concrete by acid rain has many disadvantages, and therefore, it is necessary to find a test device capable of simulating the corrosion state of the concrete structure in the actual engineering under the acid rain environment so as to well find the damage and deterioration mechanism of concrete under the acid rain environment.
Disclosure of Invention
For solving the above problem, the utility model provides a concrete acid rain erosion resistance capability test device.
A concrete acid rain erosion resistance performance testing device comprises an acid rain storage tank 1, a buckle-clamping groove 2, an acid-proof stainless steel net 3, a dropping bottle 4, a fixed support 5, an electric stirrer 6, a spray header 7, a PVC pipe A8, a peristaltic pump 9 and a PVC pipe B10; the acid-resistant stainless steel net 3 is arranged on the acid rain storage tank 1 through the buckle-clamping groove 2; the dropping bottle 4 is fixed on the acid rain storage tank 1 through a fixing bracket 5; the electric stirrer 6 is fixed on the acid rain storage tank 1 through a fixing bracket 5; one end of the PVC pipe A8 is connected with a hose of the peristaltic pump 9, the other end of the PVC pipe A8 is a communicated cross pipe and is fixed on the top surface of the acid rain storage tank 1, the cross pipe is provided with 4 spray heads 7, and the tail end of each pipe is sealed; one end of the PVC pipe B10 is connected and fixed on the acid rain storage tank 1 and communicated with the acid rain storage tank, and the other end is connected with a hose of the peristaltic pump 9.
The acid rain storage tank 1 is formed by processing an acid-resistant material, a simulated acid rain solution is placed, the liquid level of the simulated acid rain solution is lower than that of the acid-resistant stainless steel mesh 3, and the acid-resistant stainless steel mesh 3 is used for placing a concrete sample.
The dropping bottle 4 is internally provided with concentrated nitric acid solution, a conduit connected with the dropping bottle is inserted below the acid-proof stainless steel mesh 3, and the titration speed of the concentrated nitric acid can be adjusted at any time by the transfusion bottle principle so as to maintain the pH value of the simulated acid rain solution to be stable in a certain range.
The stirring blades of the electric stirrer 6 are made of acid-resistant materials, are positioned below the acid-resistant stainless steel mesh 3 and are close to the tail end of a dropper of the liquid dropping bottle 4 as far as possible, so that the simulated acid rain solution is uniformly stirred.
The peristaltic pump 9 can adjust the rotating speed, control the acid rain spraying speed and maintain the circulation of the simulated acid rain solution.
The spray header 7 is an acid-resistant spray header.
Compared with the prior art, the utility model discloses following beneficial effect has: the simulation of the rainfall process is realized through the spray head, the control simulation of the rainfall is realized through adjusting the peristaltic pump, the control simulation of the acidity of acid rain is realized through the dropping liquid bottle, and in conclusion, the corrosion state of the concrete structure in the actual environment by the acid rain can be effectively simulated; the test device has simple structure and easy operation, and can realize the recycling of acid rain simulation solution; the process control degree is high, the device can adjust the pH value and the flow of the simulated acid rain solution in real time, and the environmental parameter can be controlled; the test device has wide application range, can be used for testing and evaluating the acid rain erosion resistance of other building materials such as concrete samples, mortar, stone and the like, and can also be used for testing and evaluating the erosion resistance of other salt solutions of the building materials.
Drawings
Fig. 1 is an overall structure schematic diagram of the concrete acid rain erosion resistance performance testing device provided by the utility model. In the drawings: 1-acid rain storage tank; 2-fastener-slot; 3-acid-resistant stainless steel mesh; 4-a dropping bottle; 5-fixing a bracket; 6-electric stirrer; 7-a spray header; 8-PVC pipe A; 9-a peristaltic pump; 10-PVC pipe B.
Detailed Description
The concrete acid rain erosion resistance testing device of the present invention will be further described with reference to the following specific examples, but the scope of the present invention is not limited thereto.
Example 1
A concrete acid rain erosion resistance performance testing device comprises an acid rain storage tank 1, a buckle-clamping groove 2, an acid-proof stainless steel net 3, a dropping bottle 4, a fixed support 5, an electric stirrer 6, a spray header 7, a PVC pipe A8, a peristaltic pump 9 and a PVC pipe B10; the acid-resistant stainless steel net 3 is arranged on the acid rain storage tank 1 through the buckle-clamping groove 2; the dropping bottle 4 is fixed on the acid rain storage tank 1 through a fixing bracket 5; the electric stirrer 6 is fixed on the acid rain storage tank 1 through a fixing bracket 5; one end of the PVC pipe A8 is connected with a hose of the peristaltic pump 9, the other end is a communicated cross pipe and is fixed on the top surface of the acid rain storage tank 1, the cross pipe is provided with 4 spray heads 7, and the tail end of each pipe is sealed. One end of the PVC pipe B10 is connected and fixed on the acid rain storage tank 1 and communicated with the acid rain storage tank, and the other end is connected with a hose of the peristaltic pump 9. The acid rain storage tank 1 is formed by processing an acid-resistant material, a simulated acid rain solution is placed, the liquid level of the simulated acid rain solution is lower than that of the acid-resistant stainless steel mesh 3, and the acid-resistant stainless steel mesh 3 is used for placing a concrete sample. The dropping bottle 4 is internally provided with concentrated nitric acid solution, a conduit connected with the dropping bottle is inserted below the acid-proof stainless steel mesh 3, and the titration speed of the concentrated nitric acid can be adjusted at any time by the transfusion bottle principle so as to maintain the pH value of the simulated acid rain solution to be stable in a certain range. The stirring blades of the electric stirrer 6 are made of acid-resistant materials, are positioned below the acid-resistant stainless steel mesh 3 and are close to the tail end of a dropper of the liquid dropping bottle 4 as far as possible, so that the simulated acid rain solution is uniformly stirred. The peristaltic pump 9 can adjust the rotating speed, control the acid rain spraying speed and maintain the circulation of the simulated acid rain solution. The spray header 7 is an acid-resistant spray header.
Claims (6)
1. A concrete acid rain erosion resistance testing device is characterized by comprising an acid rain storage tank (1), a buckle-clamping groove (2), an acid-resistant stainless steel mesh (3), a dropping bottle (4), a fixed support (5), an electric stirrer (6), a spray header (7), a PVC pipe A (8), a peristaltic pump (9) and a PVC pipe B (10); the acid-resistant stainless steel net (3) is arranged on the acid rain storage tank (1) through a buckle-clamping groove (2); the dropping bottle (4) is fixed on the acid rain storage tank (1) through a fixing bracket (5); the electric stirrer (6) is fixed on the acid rain storage tank (1) through a fixing bracket (5); one end of the PVC pipe A (8) is connected with a hose of the peristaltic pump (9), the other end of the PVC pipe A is a communicated cross pipe and is fixed on the top surface of the acid rain storage tank (1), the cross pipe is provided with 4 spray heads (7), and the tail end of each pipe is sealed; one end of the PVC pipe B (10) is connected and fixed on the acid rain storage tank (1) and communicated with the acid rain storage tank, and the other end is connected with a hose of a peristaltic pump (9).
2. The concrete acid rain erosion resistance performance test device of claim 1, wherein the acid rain storage tank (1) is made of acid-proof material, a simulated acid rain solution is placed on the acid rain storage tank, the liquid level of the simulated acid rain solution is lower than that of the acid-proof stainless steel net (3), and the acid-proof stainless steel net (3) is used for placing a concrete sample.
3. The concrete acid rain erosion resistance testing device according to claim 1, wherein the dropping bottle (4) is filled with concentrated nitric acid solution.
4. The concrete acid rain erosion resistance test device of claim 1, wherein the stirring blade of the electric stirrer (6) is made of acid-resistant material.
5. The concrete acid rain erosion resistance performance test device according to claim 1, wherein the peristaltic pump (9) is an adjustable-speed peristaltic pump.
6. The concrete acid rain erosion resistance test device of claim 1, wherein the spray header (7) is an acid-resistant spray header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022157711.3U CN213209867U (en) | 2020-09-27 | 2020-09-27 | Acid rain erosion resistance performance testing device for concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022157711.3U CN213209867U (en) | 2020-09-27 | 2020-09-27 | Acid rain erosion resistance performance testing device for concrete |
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| Publication Number | Publication Date |
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| CN213209867U true CN213209867U (en) | 2021-05-14 |
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| CN202022157711.3U Expired - Fee Related CN213209867U (en) | 2020-09-27 | 2020-09-27 | Acid rain erosion resistance performance testing device for concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397240A (en) * | 2022-01-21 | 2022-04-26 | 广西大学 | Acid-rain-corrosion-normal-temperature drying multi-physical-field intelligent regulation test device and method |
| CN116242717A (en) * | 2023-01-05 | 2023-06-09 | 哈尔滨学院 | Mechanical property testing device of fiber concrete initial torsion member scaling model |
| CN118050309A (en) * | 2024-02-21 | 2024-05-17 | 中冶建筑研究总院（深圳）有限公司 | Method, system and device for evaluating acid rain erosion durability of concrete structure |
-
2020
- 2020-09-27 CN CN202022157711.3U patent/CN213209867U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397240A (en) * | 2022-01-21 | 2022-04-26 | 广西大学 | Acid-rain-corrosion-normal-temperature drying multi-physical-field intelligent regulation test device and method |
| CN116242717A (en) * | 2023-01-05 | 2023-06-09 | 哈尔滨学院 | Mechanical property testing device of fiber concrete initial torsion member scaling model |
| CN116242717B (en) * | 2023-01-05 | 2023-12-05 | 哈尔滨学院 | Mechanical property testing device of fiber concrete initial torsion member scaling model |
| CN118050309A (en) * | 2024-02-21 | 2024-05-17 | 中冶建筑研究总院（深圳）有限公司 | Method, system and device for evaluating acid rain erosion durability of concrete structure |
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Granted publication date: 20210514 Termination date: 20210927 |
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| CF01 | Termination of patent right due to non-payment of annual fee |