Multi-environment assembled device for detecting durability of reinforced concrete in marine environment

Abstract

The utility model discloses a multi-environment assembled device for reinforced concrete durability detection in marine environment, which relates to the technical field of reinforced concrete durability detection and comprises a model box and a lifting device, and a spraying module and a rainfall module are arranged at the top of the model box. According to the utility model, in the durability detection of the reinforced concrete structure under multiple environments, the spraying module, the rainfall module, the drying box and the temperature control module are arranged, so that the durability detection of the reinforced concrete structure under common weather, rainfall weather and dry-wet cycle conditions can be simulated; meanwhile, the erosion conditions of salts with different concentrations on the reinforced concrete structure can be researched by changing the concentration of the salts; the durability detection of the reinforced concrete structure under all-weather and all-season conditions simulates the erosion conditions of the reinforced concrete in different seasons day and night in a marine environment through the synergistic effect of the drying box, the temperature control module and the spraying module, and is similar to the actual working environment of the reinforced concrete.

Description

TECHNICAL FIELD

[0001] The utility model relates to reinforced concrete durability detection technical field especially is related to a kind of multi-environment assembled device for reinforced concrete durability detection under marine environment. BACKGROUND

[0002] Concrete is a common building material, with high strength, frost resistance, good durability and other characteristics, is widely used in various buildings and infrastructure. Marine environment air contains a large amount of chloride ions and sulfate ions, they will penetrate into the concrete, with calcium ions and hydrated calcium silicate in concrete, form soluble calcium chloride and calcium sulfate. These solubles will destroy the hydration products in concrete, cause concrete to swell, crack and spalling, resulting in the damage of concrete structure. In addition, the temperature and humidity of marine environment air will change greatly, concrete constantly experiences wet and dry process, will make it appear crack, compressive strength decreases and so on.

[0003] At present, the existing model test mainly studies the erosion of concrete structure in seawater, however, the concentration of salt in air is different in day and night under marine environment, and the temperature and humidity change greatly, which has great influence on the performance of concrete structure, and the existing device does not have detailed description on the durability detection of concrete structure, or uses traditional detection means, which cannot detect the durability change of concrete structure in real time. UTILITY MODEL CONTENTS

[0004] In order to improve the above-mentioned existing model test mainly studies the erosion of concrete structure in seawater, however, the concentration of salt in air is different in day and night under marine environment, and the temperature and humidity change greatly, which has great influence on the performance of concrete structure, and the existing device does not have detailed description on the durability detection of concrete structure, or uses traditional detection means, which cannot detect the durability change of concrete structure in real time, the utility model provides a kind of multi-environment assembled device for reinforced concrete durability detection under marine environment.

[0005] The utility model provides a kind of multi-environment assembled device for reinforced concrete durability detection under marine environment, adopt following technical scheme:

[0006] Multi-environment assembled device for reinforced concrete durability detection under marine environment, including model box and hoisting device, the top of the model box is provided with spray module and rainfall module, one side of the model box is provided with drying oven, test block detection module is arranged in the model box, temperature control module is arranged in the model box, data processing module is arranged outside the model box.

[0007] Optionally, in the multi-environment assembled device for detecting the durability of reinforced concrete under marine environment, the spraying module comprises a spraying water interface, a spraying container, a spraying pipeline, a spraying hole, a U-shaped humidifier, a fixing piece and a first screw, the spraying water interface is connected with the spraying container in a threaded rotation manner, the spraying container is connected with the spraying pipeline in a threaded rotation manner, the spraying pipeline is divided into several sections, the spraying pipeline is connected with the U-shaped humidifier in a threaded rotation manner, the spraying hole is located on the U-shaped humidifier, and the fixing piece is located on the U-shaped humidifier and connected with the model box through the first screw.

[0008] Optionally, in the multi-environment assembled device for detecting the durability of reinforced concrete under marine environment, the rainfall module comprises a rainfall water interface, a rainfall container, a rainfall pipeline, a rainfall spraying pipeline and a rainfall spraying hole, the rainfall water interface is connected with the rainfall container in a threaded rotation manner, the rainfall container is connected with the rainfall pipeline in a threaded rotation manner, the rainfall pipeline is divided into several sections, the rainfall pipeline is connected with the rainfall spraying pipeline in a threaded rotation manner, the rainfall spraying hole is located on the rainfall spraying pipeline, and the rainfall spraying pipeline penetrates through the test block detection module and is inserted into the test block detection module.

[0009] Optionally, in the multi-environment assembled device for detecting the durability of reinforced concrete under marine environment, the model box comprises a bottom plate, an outer frame and a top plate, the outer frame is connected with the bottom plate through a connecting piece, the top plate comprises a left top plate, a middle top plate and a right top plate, the top plate is located above the outer frame, the spraying pipeline is arranged on the left top plate in a penetrating manner, the left top plate is provided with a top plate line through hole one, the rainfall pipeline is arranged on the right top plate in a penetrating manner, the right top plate is provided with a top plate line through hole two, and the middle top plate is provided with a first handle.

[0010] Optionally, in the multi-environment assembled device for detecting the durability of reinforced concrete under marine environment, the drying box is provided with a grid on the surface connected with the model box, the drying box is divided into two areas through a partition plate, the partition plate is provided with a clamping groove, the partition plate is fixed through a buckle matched with the clamping groove, the top surface of the partition plate is provided with a top panel, the top panel is provided with a fourth handle, and the top plate of the drying box is provided with a second handle.

[0011] Optionally, in the multi-environment assembled device for durability detection of reinforced concrete under marine environment, the test block detection module comprises a test block monitoring system frame, the test block monitoring system frame comprises a top lattice frame and a detection system frame, the top lattice frame and the detection system frame are connected through the positioning holes and the second screws, the inner side of the detection system frame is provided with a positioning top plate, the detection system frame is provided with positioning holes two, positioning clamping grooves, the positioning top plate is connected with the positioning holes two and the positioning clamping grooves through the positioning pegs, the positioning top plate is provided with line through holes one, line through holes two and top plate connecting holes, the positioning top plate is provided with rainfall pipeline positioning holes, the rainfall spraying pipeline is fixed in the rainfall pipeline positioning hole through the elastic positioning plug, the elastic positioning plug is provided with a third handle, the positioning top plate is provided with a rotatable top disc, the rotatable top disc is clamped in the positioning top plate, the rotatable top disc is provided with a top plate test block positioning groove, a reinforced concrete test block is movably inserted into the top plate test block positioning groove, and the lower part of the detection system frame is connected with the bottom plate in a clamping manner.

[0012] The bottom plate is provided with a rotatable bottom disc, the rotatable bottom disc is provided with a test block positioning frame, the inner side of the test block positioning frame is provided with a test block clamping groove, the lower end of the reinforced concrete test block is movably inserted into the test block clamping groove, and the test block clamping groove is connected with the inner side of the test block positioning frame through the test block size adjusting telescopic rods.

[0013] The detection system frame is provided with a plurality of infrared thermal imagers, temperature sensors, humidity sensors and acoustic emission sensors, the temperature sensors are located on the detection system frame and the reinforced concrete test block, the humidity sensors are located on the detection system frame, and the acoustic emission sensors are located on the reinforced concrete test block.

[0014] Optionally, in the multi-environment assembled device for durability detection of reinforced concrete under marine environment, the temperature control module is located inside the outer frame, and the detection lines of the acoustic emission sensors, the infrared thermal imagers, the temperature sensors and the humidity sensors are connected with the data processing module through the line through holes one or the line through holes two, the top plate line through holes one or the top plate line through holes two.

[0015] The hoisting device comprises a hoisting rope, a hoisting frame and a hoisting control device, the hoisting rope is connected with the rotating rod, and the hoisting control device is used for lifting the rotatable bottom disc and the reinforced concrete test block thereon in cooperation with the hoisting frame.

[0016] In summary, the utility model discloses at least one of the following beneficial effects:

[0017] The reinforced concrete structure durability detection under multiple environments can simulate the reinforced concrete structure durability detection under ordinary weather, rainfall weather and dry-wet cycle conditions, and can study the erosion of different concentrations of salt on the reinforced concrete structure by changing the salt concentration.

[0018] The reinforced concrete structure durability detection under all-weather and all-season conditions can simulate the erosion of reinforced concrete under all-weather and different seasons by the synergistic effect of the drying box, the temperature control module and the spraying module, which is similar to the actual working environment of reinforced concrete.

[0019] The intelligent detection of the erosion of reinforced concrete structure can detect the corrosion of reinforced steel by acoustic emission sensors and detect the internal damage of concrete by infrared thermal imaging principle, which improves the detection efficiency and accuracy and reduces the test error.

[0020] The assembled device is detachable, which can be disassembled for next use after the test and reduces the damage to the device during transportation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the model box structure diagram of the utility model;

[0022] Figure 2 is the model box structure plan view of the utility model;

[0023] Figure 3 is the drying box structure diagram of the utility model;

[0024] Figure 4 is the left view of the drying box structure of the utility model;

[0025] Figure 5 is the multiple environment detection device structure diagram of the utility model;

[0026] Figure 6 is the front view of the multiple environment detection device structure of the utility model;

[0027] Figure 7 is the humidifier three-dimensional view of the multiple environment detection device of the utility model;

[0028] Figure 8 is the bottom view of the humidifier of the multiple environment detection device of the utility model;

[0029] Figure 9 is the left view of the humidifier of the multiple environment detection device of the utility model;

[0030] Figure 10 is the reinforced concrete test block detection system structural diagram of the utility model;

[0031] Figure 11 is the bottom plate and reinforced concrete test block detection system structural diagram of the utility model;

[0032] Figure 12 is the bottom plate and reinforced concrete test block detection system structural diagram A-A longitudinal section view of the utility model;

[0033] Figure 13 is the bottom plate and reinforced concrete test block detection system structural diagram B-B transverse section view of the utility model;

[0034] Figure 14 is the positioning roof and rainfall system structural diagram of the utility model;

[0035] Figure 15 is the positioning roof and rainfall system left view of the utility model;

[0036] Figure 16 is the positioning roof and rainfall system right view of the utility model;

[0037] Figure 17 is the positioning roof and rainfall system connection top view of the utility model;

[0038] Figure 18 is the positioning roof and rainfall system connection top view C-C longitudinal section view of the utility model;

[0039] Figure 19 is the reinforced concrete test block dismounting structural diagram of the utility model.

[0040] In the figure: 1, spray module; 11, spray water interface; 12, spray container; 13, spray pipeline; 14, spray hole; 15, humidifier; 16, fixing part; 17, first screw; 2, rainfall module; 21, rainfall water interface; 22, rainfall container; 23, rainfall pipeline; 24, rainfall spray pipeline; 25, rainfall spray hole; 3, model box; 31, outer frame; 32, bottom plate; 33, connecting part; 34, left top plate; 35, middle top plate; 36, right top plate; 37, top plate line crossing hole one; 38, top plate line crossing hole two; 39, first handle; 4, drying box; 41, top panel; 42, second handle; 43, partition plate; 44, fourth handle; 45, buckle; 46, clamping groove; 47, grid; 5, test block detection module; 51, test block detection module frame; 511, top square frame; 512, detection system frame; 513, positioning hole one; 514, second screw; 515, positioning hole two; 516, positioning clamping groove; 517, positioning bolt; 52, positioning top plate; 53, line crossing hole one; 54, line crossing hole two; 55, rainfall pipeline positioning hole; 56, rotatable bottom disc; 57, test block positioning frame; 58, test block size adjustment telescopic rod; 59, test block clamping groove; 510, bottom plate connecting hole; 518, rotating rod; 519, infrared thermal imager; 520, temperature sensor; 521, humidity sensor; 522, acoustic emission sensor; 523, detection line; 524, reinforced concrete test block; 525, top plate connecting hole; 526, elastic positioning plug; 527, third handle; 528, rotatable top disc; 529, top plate test block positioning groove; 6, temperature control module; 7, data processing module; 8, hoisting device; 81, hoisting rope; 82, hoisting frame; 83, hoisting control device. DETAILED DESCRIPTION

[0041] The following will be described in detail with reference to the accompanying drawings. Figures 1-19 The utility model will be described in further detail.

[0042] Please refer to the accompanying drawings in the specification Figures 1-19 The utility model provides a kind of embodiment: a kind of multi-environment assembled device for reinforced concrete durability detection under marine environment, including model box 3 and hoisting device 8, the top of model box 3 is provided with spray module 1 and rainfall module 2, spray module 1 includes spray water interface 11, spray container 12, spray pipeline 13, spray hole 14, U-type humidifier 15, fixing part 16 and first screw 17, spray water interface 11 is connected with spray container 12 using the way of thread rotation, spray container 12 is connected with spray pipeline 13 using the way of thread rotation, store water and sodium sulfate mixed solution by spray container 12, spray pipeline 13 is divided into several sections, spray pipeline 13 is connected with U-type humidifier 15 using the way of thread rotation, it is convenient to be delivered to U-type humidifier 15 by spray pipeline 13 to spray container 12.

[0043] The spray hole 14 is located on the U-shaped humidifier 15, the fixing part 16 is located on the U-shaped humidifier 15 and is connected with the model box 3 through the first screw 17, in the general environment, a part of water is injected into the spray container 12 through the spray water interface 11, so that the sodium sulfate is fully dissolved in water, then the cover plate between the spray container 12 and the spray pipeline 13 is removed, so that the sodium sulfate water enters the pipeline and is sprayed out of the spray hole 14, so as to ensure that the salt content in the air in the model box 3 is the same as the actual one.

[0044] The rainfall module 2 comprises a rainfall water interface 21, a rainfall container 22, a rainfall pipeline 23, a rainfall spray pipeline 24 and a rainfall spray hole 25, the rainfall water interface 21 is connected with the rainfall container 22 in a threaded rotation manner, the mixture of water and sodium sulfate is stored through the rainfall water interface 21, the rainfall container 22 is connected with the rainfall pipeline 23 in a threaded rotation manner, the rainfall pipeline 23 is divided into several sections, the rainfall pipeline 23 is connected with the rainfall spray pipeline 24 in a threaded rotation manner, and the water in the rainfall container 22 is conveniently conveyed into the rainfall spray pipeline 24 through the rainfall pipeline 23.

[0045] The rainfall spray hole 25 is located on the rainfall spray pipeline 24, the rainfall spray pipeline 24 penetrates through the test block detection module 5 and is inserted into the test block detection module 5, in the rainfall environment, water is injected into the rainfall container 22 through the rainfall water interface 21, so that the sodium sulfate is fully dissolved in water, then the cover plate between the rainfall container 22 and the rainfall pipeline 23 is removed, so that the sodium sulfate water enters the pipeline and is sprayed out of the rainfall spray hole 25, so as to ensure that the salt content in the water is consistent with that in the actual rainwater.

[0046] The model box 3 comprises a bottom plate 32, an outer frame 31 and a top plate, the outer frame 31 is connected with the bottom plate 32 through the setting of a connecting part 33, the top plate comprises a left top plate 34, a middle top plate 35 and a right top plate 36, the top plate is located above the outer frame 31 and is assembled together in a flexible connection manner, the spray pipeline 13 is penetratively arranged on the left top plate 34, the left top plate 34 is provided with a top plate line through hole one 37, the rainfall pipeline 23 is penetratively arranged on the right top plate 36, the right top plate 36 is provided with a top plate line through hole two 38, and the middle top plate 35 is provided with a first handle 39.

[0047] One side of the model box 3 is provided with a drying box 4, the surface of the drying box 4 connected with the model box 3 is provided with a grid 47, the drying box 4 is divided into two areas through the setting of a partition plate 43, the partition plate 43 is provided with a clamping groove 46, the partition plate 43 is fixed through the setting of a buckle 45 matched with the clamping groove 46, the top surface of the partition plate 43 is provided with a top panel 41, the top panel 41 is provided with a fourth handle 44, and the top plate of the drying box 4 is provided with a second handle 42.

[0048] In all-weather conditions, a part of water is injected into the spray container 12 through the spray water interface 11, so that the sodium sulfate is fully dissolved in water, then the cover plate between the spray container 12 and the spray pipeline 13 is removed, so that the sodium sulfate aqueous solution enters the pipeline and is sprayed out from the spray hole 14, and the temperature in the model box 3 is adjusted to be consistent with the environment through the temperature control module 6, then the quicklime is placed in the drying box 4, the partition plate 43 is lifted, and the partition plate 43 is fixed by the buckle 45, at this time, the quicklime reacts CaO+H2O=Ca(OH)2, the reaction of calcium oxide and water releases a large amount of heat, which is used to simulate that the temperature in the air gradually increases and the moisture gradually decreases from sunrise, and the temperature decreases after the afternoon, the humidity in the air is increased by the spray module 1, and the temperature in the air is decreased by the temperature control module 6.

[0049] The test block detection module 5 is arranged in the model box 3, and the test block detection module 5 comprises a test block monitoring system frame 51, and the test block monitoring system frame 51 comprises a top lattice frame 511 and a detection system frame 512.

[0050] The inside of the detection system frame 512 is provided with a positioning top plate 52, and the detection system frame 512 is provided with positioning holes two 515 and positioning clamping grooves 516, and the positioning top plate 52 is connected to the positioning holes two 515 and the positioning clamping grooves 516 through positioning pins 517.

[0051] The positioning top plate 52 is provided with line through holes one 53, line through holes two 54 and top plate connecting holes 525, and the positioning top plate 52 is provided with a rainfall pipeline positioning hole 55, and the rainfall spraying pipeline 24 is fixed in the rainfall pipeline positioning hole 55 through an elastic positioning plug 526, the third handle 527 is arranged on the elastic positioning plug 526, the rainfall spraying pipeline 24 is inserted into the positioning top plate 52 through the rainfall pipeline positioning hole 55 and is fixed by the elastic positioning plug 526, and the third handle 527 is convenient for the operator to disassemble the elastic positioning plug 526.

[0052] The positioning top plate 52 is provided with a rotatable top disc 528, the rotatable top disc 528 is clamped in the positioning top plate 52, the rotatable top disc 528 is provided with a top plate test block positioning groove 529, and a reinforced concrete test block 524 is movably inserted into the top plate test block positioning groove 529, and the lower part of the detection system frame 512 is connected to the bottom plate 32 in a clamping manner, and the top plate test block positioning groove 529 is convenient for limiting the upper end of the reinforced concrete test block 524.

[0053] The bottom plate 32 is provided with a rotatable bottom disc 56, the rotatable bottom disc 56 is internally provided with a test block positioning frame 57, the inner side of the test block positioning frame 57 is provided with a test block clamping groove 59, the lower end of the reinforced concrete test block 524 is movably inserted into the test block clamping groove 59, the test block clamping groove 59 is connected to the inner side of the test block positioning frame 57 through the test block size adjusting expansion rod 58, the length of the test block size adjusting expansion rod 58 can be adjusted according to the needs, so as to facilitate the adjustment of the position of the test block clamping groove 59, and the lower end of the reinforced concrete test block 524 is limited through the test block clamping groove 59.

[0054] The top surface of the positioning top plate 52 is provided with a top plate connecting hole 525, the top plate connecting hole 525 is provided with a rotating rod 518, the top surface of the bottom plate 32 is provided with a bottom plate connecting hole 510, the bottom of the rotating rod 518 is threadedly connected to the bottom plate connecting hole 510, and the concrete test piece should be rotated through the rotating rod 518 during the spraying process of the rainfall spraying hole 25, so that the whole test piece is subjected to rainwater spraying.

[0055] The detection system frame 512 is provided with a plurality of infrared thermal imagers 519, temperature sensors 520, humidity sensors 521 and acoustic emission sensors 522, the temperature sensors 520 are located on the detection system frame 512 and the reinforced concrete test block 524, the humidity sensors 521 are located on the detection system frame 512, and the acoustic emission sensors 522 are located on the reinforced concrete test block 524.

[0056] The model box 3 is internally provided with a temperature control module 6, the model box 3 is externally provided with a data processing module 7, the temperature control module 6 is located inside the outer frame 31, the detection lines 523 of the acoustic emission sensors 522, the infrared thermal imagers 519, the temperature sensors 520 and the humidity sensors 521 are connected to the data processing module 7 through the line crossing hole one 53 or the line crossing hole two 54, the top plate line crossing hole one 37 or the top plate line crossing hole two 38, the reinforced steel corrosion condition is detected through the acoustic emission sensors 522, the reinforced steel corrosion condition can be detected in real time during the test process; the erosion condition of the concrete surface can be understood by naked eyes; the temperature of the test block surface is understood in real time through the temperature control module 6 and the temperature sensor 520, after the temperature reaches the requirement, the concrete is photographed through the infrared thermal imager 519, the erosion condition inside the concrete is analyzed and judged, when the concrete structure is heated, the concrete test piece should be rotated through the rotating rod 518, so as to achieve uniform heating.

[0057] The hoisting device 8 comprises a hoisting rope 81 connected with the rotating rod 518, a hoisting frame 82 and a hoisting control device 83 cooperating with the hoisting frame 82 for lifting the rotatable bottom disc 56 and the reinforced concrete test block 524 thereon. First, the hoisting device 8 is moved to the upper side of the mold box 3, then the hoisting rope 81 is stably connected with the rotating rod 518, the positioning top plate 52, the reinforced concrete test block 524 and the rotatable bottom disc 56 are hoisted upward by the hoisting control device 83, when reaching a certain height, the reinforced concrete test block 524 is removed, and the strength of the test block is detected by a rebound instrument to comprehensively evaluate the erosion of the test block.

[0058] In summary, the reinforced concrete structure durability detection in multiple environments can simulate the reinforced concrete structure durability detection under ordinary weather, rainy weather and dry-wet cycle conditions due to the setting of the spraying module 1, the rainfall module 2, the drying box 4 and the temperature control module 6, and can study the erosion of the reinforced concrete structure under different concentrations of salts by changing the concentration of salts.

[0059] The reinforced concrete structure durability detection in all-weather and all-season conditions can simulate the erosion of the reinforced concrete in all-weather and different seasons under the marine environment through the cooperative action of the drying box 4, the temperature control module 6 and the spraying module 1, which is similar to the actual working environment of the reinforced concrete.

[0060] The intelligent detection of the erosion of the reinforced concrete structure can detect the corrosion of the steel bar through the acoustic emission sensor 522 and detect the internal damage of the concrete through the infrared thermal imaging principle, which improves the efficiency and accuracy of the detection and reduces the test error.

[0061] In order to better show a kind of multiple environment assembled device for reinforced concrete durability detection in marine environment, the present embodiment proposes the operation method of the above multiple environment assembled device for reinforced concrete durability detection in marine environment, comprising the following steps:

[0062] Step one: making reinforced concrete test block 524;

[0063] The reinforced concrete test block 524 is made according to the engineering characteristics and the similarity principle. In this project, the test block is made according to the steel bars and concrete grade and specifications of beams, columns and slabs.

[0064] Step two: assemble the test device and install the test block;

[0065] Referring to the description of the test device, first, the outer frame 31 is installed with the bottom plate 32 through the connecting piece 33, then the left top plate 34, the middle top plate 35 and the right top plate 36 are installed above the outer frame 31, then the spraying module 1 is installed on the left top plate 34, and the rainfall module 2 is installed on the right top plate 36, at this time, the installation of the model box 3 is completed, then the drying box 4 is installed on one side of the model box 3, and finally the test block detection module 5 is installed in the model box 3;

[0066] The top square frame 511 of the test block detection module 5 is fixed with the detection system frame 512 through the second screw 514, and the positioning top plate 52 is installed on the detection system frame 512 through the positioning bolt 517, then the rotatable top disc 528 is clamped in the positioning top plate 52, and the rotatable bottom disc 56 is installed on the bottom plate 32;

[0067] The size of the test block clamping groove 59 is determined according to the size of the test block, then the position of the test block clamping groove 59 is adjusted through the test block size adjusting telescopic rod 58 according to the size of the test block, then it is fixed at a suitable position, and the bottom of the test block is installed in the test block clamping groove 59, and the upper part is installed in the top plate test block positioning groove 529, and the position of the positioning top plate 52 is fixed through the positioning bolt 517.

[0068] Step three: durability detection of reinforced concrete structure under multiple environments;

[0069] A, durability detection of reinforced concrete structure under ordinary environment;

[0070] a, under ordinary marine environment, reinforced concrete is generally eroded by sulfate and chloride in seawater, mainly considering the influence of sodium sulfate and sodium chloride, first, sodium chloride and sulfuric acid are put into the spraying container 12 to make them react chemically: NaCl + H2SO4→ Na2SO4+ 2HCl↑, according to the content of salt in the air of actual marine city, the required amount of sodium sulfate and water is calculated according to the mass of raw materials, and a part of water is injected into the spraying container 12 through the spraying water interface 11 to make the sodium sulfate fully dissolved in water;

[0071] b, after the sodium sulfate is fully dissolved in water, the cover plate between the spraying container 12 and the spraying pipeline 13 is removed, so that the sodium sulfate water enters the pipeline and is sprayed out of the spraying hole 14, so as to ensure that the salt content in the air in the model box 3 is the same as that in the actual environment;

[0072] c, according to the temperature in the actual environment, the temperature in the model box 3 is adjusted to be consistent with that in the environment through the temperature control module 6;

[0073] d. Reinforcing steel corrosion is detected by acoustic emission sensor 522, and the reinforcing steel corrosion can be detected in real time during the test. The erosion of the concrete surface can be understood by the naked eye. The temperature is raised by the temperature control module 6, and the temperature of the test block surface is understood in real time by the temperature sensor 520. After the temperature reaches the required temperature, the concrete is photographed by the infrared thermal imager 519, and then the internal erosion of the concrete is analyzed and judged. When the concrete structure is heated, the concrete test piece should be rotated by the rotating rod 518 to achieve uniform heating;

[0074] e. When considering the influence of chloride salt on the concrete structure, sodium chloride is selected and added to the spraying container 12, and steps a-d are repeated;

[0075] f. When considering the erosion of concrete in different seasons, the temperature control module 6 needs to be adjusted to make the temperature in the model box 3 reach the required requirement, and steps a-e are repeated;

[0076] B. Reinforced concrete structure durability test under rainfall environment;

[0077] a. When it rains, rain will directly fall on the concrete structure, which has a greater impact on the erosion of concrete. First, put sodium chloride and sulfuric acid into the rainfall container 22 to make them react: NaCl + H2SO4→ Na2SO4 + 2HCl↑. According to the actual content of salt in the air of a marine city, the required amount of sodium sulfate and water is calculated according to the mass of the original material, and the water is injected into the rainfall container 22 through the rainfall water interface 21 to make the sodium sulfate fully dissolved in water;

[0078] b. After the sodium sulfate is fully dissolved in water, the cover plate between the rainfall container 22 and the rainfall pipeline 23 is removed, so that the sodium sulfate water enters the pipeline and is sprayed out of the rainfall spraying hole 25, ensuring that the salt content in the water is consistent with that in actual rainwater;

[0079] c. The concrete test piece should be rotated by the rotating rod 518 during the spraying process of the rainfall spraying hole 25, so that the whole test piece is subjected to rainwater spraying;

[0080] d. Reinforcing steel corrosion is detected by acoustic emission sensor 522, and the reinforcing steel corrosion can be detected in real time during the test. The erosion of the concrete surface can be understood by the naked eye. The temperature is raised by the temperature control module 6, and the temperature of the test block surface is understood in real time by the temperature sensor 520. After the temperature reaches the required temperature, the concrete is photographed by the infrared thermal imager 519, and then the internal erosion of the concrete is analyzed and judged. When the concrete structure is heated, the concrete test piece should be rotated by the rotating rod 518 to achieve uniform heating;

[0081] e. When considering the influence of chloride salt on the concrete structure, sodium chloride is selected and added to the spraying container 12, and steps a-d are repeated;

[0082] f、Consider the erosion of concrete in different seasons, adjust the temperature control module 6 to make the temperature in the model box 3 reach the required requirements, and repeat steps a-e;

[0083] C, all-weather reinforced concrete structure durability detection;

[0084] a, select a certain time point to start, detect the durability of reinforced concrete structure in a day, this time choose 6 o'clock, first put sodium chloride and sulfuric acid into the spraying container 12 to make them react: NaCl + H2SO4→ Na2SO4+ 2HCl↑, according to the content of salt in the air of actual marine city, calculate the amount of sodium sulfate and water needed according to the mass of raw materials, inject part of the water into the spraying container 12 through the spraying water interface 11, so that the sodium sulfate is fully dissolved in water;

[0085] b, after the sodium sulfate is fully dissolved in water, remove the cover plate between the spraying container 12 and the spraying pipeline 13, so that the sodium sulfate solution enters the pipeline and is sprayed out of the spraying hole 14, ensuring that the salt content in the air of the model box 3 is the same as that at 6 o'clock;

[0086] c, according to the temperature in the actual environment, adjust the temperature in the model box 3 to be consistent with that in the environment through the temperature control module 6;

[0087] d, put quicklime into the drying box 4, lift the partition plate 43, and fix the partition plate 43 with the buckle 45, at this time, the quicklime reacts: CaO + H2O = CaOH2, calcium oxide and water react to release a lot of heat, which is used to simulate the gradual increase of air temperature and the gradual decrease of water content from sunrise, and the decrease of temperature and the gradual increase of water content after afternoon, the spraying module 1 is used to increase the humidity of the air, and the temperature control module 6 is used to reduce the temperature of the air;

[0088] e, detect the corrosion of steel bars through acoustic emission sensor 522, which can detect the corrosion of steel bars in real time during the test; the erosion of concrete surface can be understood by naked eye; the temperature of the test block surface can be understood in real time through temperature sensor 520 by increasing the temperature through temperature control module 6, after the temperature reaches the required temperature, the concrete is photographed by infrared thermal imager 519, the internal erosion of the concrete is analyzed and judged, and the concrete structure is heated, the rotating rod 518 is used to rotate the concrete test piece to achieve uniform heating;

[0089] f, considering the influence of chloride salt on concrete structure, select sodium chloride and add it into the spraying container 12, and repeat steps a-e;

[0090] D, durability detection of reinforced concrete structure in dry-wet alternating environment;

[0091] a, spray salt and moisture into the model box 3 through the spray module 1, the salt can use single sulfate or chloride, or use two or more salt, study its influence on the durability of concrete.

[0092] b, increase the temperature in the model box 3 through the drying box 4 and the temperature control module 6, reduce the moisture in the model box 3, so that the model box 3 is in a dry state;

[0093] c, the repeated operation of step a and step b, can achieve the condition of dry-wet cycle;

[0094] d, the durability of reinforced concrete structure is detected through acoustic emission sensor 522 and infrared thermal imager 519.

[0095] Step four: sample removal;

[0096] Move the lifting device 8 to the top of the model box 3, stably connect the lifting rope 81 with the rotating rod 518, lift the positioning top plate 52, the reinforced concrete test block 524 and the rotatable bottom disc 56 upward through the lifting control device 83, after reaching a certain height, remove the reinforced concrete test block 524, and use the rebound instrument to test the strength of the test block, and comprehensively evaluate the erosion of the test block.

[0097] Step five: device disassembly;

[0098] After the test, the outer frame 31, the bottom plate 32, the left top plate 34, the middle top plate 35 and the right top plate 36 are disassembled in sequence, then the spray module 1 and the rainfall module 2 are disassembled, at this time the model box 3 is disassembled, then the drying box 4 is disassembled, then the second screw 514 is disassembled through the tool, so that the top square frame 511 and the detection system frame 512 are disassembled, the positioning top plate 52 is disassembled through the disassembly positioning bolt 517, finally the rotatable top disc 528 and the rotatable bottom disc 56 are disassembled, then the disassembled device is cleaned, so that the whole device is in a clean state, ready for next use.

[0099] The above are preferred embodiments of the present application, not limited to the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.

Claims

1. A multi-environment modular device for durability testing of reinforced concrete in marine environments, comprising a model box (3) and a lifting device (8), characterized in that: The top of the model box (3) is equipped with a spray module (1) and a rainfall module (2). A drying box (4) is provided on one side of the model box (3). A test block detection module (5) is provided inside the model box (3). A temperature control module (6) is provided inside the model box (3). A data processing module (7) is provided outside the model box (3). The rainfall module (2) includes a rainfall water interface (21), a rainfall container (22), a rainfall pipe (23), a rainfall spray pipe (24), and a rainfall spray hole (25). The rainwater inlet (21) is connected to the rainwater container (22) by a threaded rotation. The rainwater container (22) is connected to the rainwater pipe (23) by a threaded rotation. The rainwater pipe (23) is divided into several sections. The rainwater pipe (23) is connected to the rainwater jet pipe (24) by a threaded rotation. The rainwater jet hole (25) is located on the rainwater jet pipe (24). The rainwater jet pipe (24) passes through the test block detection module (5) and is inserted into the test block detection module (5).

2. The multi-environment assembled device for durability testing of reinforced concrete in marine environments according to claim 1, characterized in that: The spray module (1) includes a spray water interface (11), a spray container (12), a spray pipe (13), a spray hole (14), a U-shaped humidifier (15), a fixing part (16), and a first screw (17). The spray water interface (11) is connected to the spray container (12) by a threaded rotation. The spray container (12) is connected to the spray pipe (13) by a threaded rotation. The spray pipe (13) is divided into several sections. The spray pipe (13) is connected to the U-shaped humidifier (15) by a threaded rotation. The spray hole (14) is located on the U-shaped humidifier (15). The fixing part (16) is located on the U-shaped humidifier (15) and is connected to the model box (3) by the first screw (17).

3. The multi-environment assembled device for durability testing of reinforced concrete in marine environments according to claim 2, characterized in that: The model box (3) includes a base plate (32), an outer frame (31) and a top plate. The outer frame (31) is connected to the base plate (32) by a connector (33). The top plate includes a left top plate (34), a middle top plate (35) and a right top plate (36). The top plate is located above the outer frame (31). The sprinkler pipe (13) is installed through the left top plate (34). The left top plate (34) is provided with a top plate wiring through hole one (37). The rain pipe (23) is installed through the right top plate (36). The right top plate (36) is provided with a top plate wiring through hole two (38). The middle top plate (35) is provided with a first handle (39).

4. The multi-environment assembled device for durability testing of reinforced concrete in marine environments according to claim 1, characterized in that: A grid (47) is provided on the surface where the drying oven (4) is connected to the model box (3). The drying oven (4) is divided into two areas by a partition plate (43). A slot (46) is provided on the partition plate (43). The partition plate (43) is fixed by a buckle (45) that cooperates with the slot (46). A top panel (41) is provided on the top surface of the partition plate (43). A fourth handle (44) is provided on the top panel (41). A second handle (42) is provided on the top plate of the drying oven (4).

5. The multi-environment assembled device for durability testing of reinforced concrete in marine environments according to claim 3, characterized in that: The test block detection module (5) includes a test block monitoring system frame (51), which includes a top grid frame (511) and a detection system frame (512). The top grid frame (511) and the detection system frame (512) are connected by a positioning hole (513) and a second screw (514). A positioning top plate (52) is provided inside the detection system frame (512). The detection system frame (512) has a positioning hole (515) and a positioning slot (516). The positioning top plate (52) is connected by a positioning bolt (517) and a positioning hole (515) and a positioning slot (516). The positioning top plate (52) has a wire through hole (53) and a wire through hole (54). The second through hole (54) and the top plate connecting hole (525) are provided. The positioning top plate (52) is provided with a rain pipe positioning hole (55). The rain spray pipe (24) is fixed in the rain pipe positioning hole (55) by setting an elastic positioning plug (526). The elastic positioning plug (526) is provided with a third handle (527). The positioning top plate (52) is provided with a rotatable top disc (528). The rotatable top disc (528) is stuck in the positioning top plate (52). The rotatable top disc (528) is provided with a top plate test block positioning groove (529). A reinforced concrete test block (524) is movably inserted in the top plate test block positioning groove (529). The lower part of the detection system frame (512) is connected to the bottom plate (32) by a snap-fit ​​method. A rotatable bottom disc (56) is provided on the base plate (32). A test block positioning frame (57) is provided inside the rotatable bottom disc (56). A test block slot (59) is provided on the inner side of the test block positioning frame (57). The lower end of the reinforced concrete test block (524) is movably inserted into the test block slot (59). The test block slot (59) is connected to the inner side of the test block positioning frame (57) by setting a test block size adjustment telescopic rod (58). A top plate connection hole (525) is provided through the top surface of the positioning top plate (52). A rotating rod (518) is provided inside the top plate connection hole (525). A bottom plate connection hole (510) is provided through the top surface of the base plate (32). The bottom of the rotating rod (518) is threadedly connected to the bottom plate connection hole (510). The detection system frame (512) is equipped with several infrared thermal imagers (519), temperature sensors (520), humidity sensors (521) and acoustic emission sensors (522). The temperature sensors (520) are located on the detection system frame (512) and the reinforced concrete test block (524), the humidity sensors (521) are located on the detection system frame (512), and the acoustic emission sensors (522) are located on the reinforced concrete test block (524).

6. The multi-environment assembled device for durability testing of reinforced concrete in a marine environment according to claim 5, characterized in that: The temperature control module (6) is located inside the outer frame (31). The detection lines (523) of the acoustic emission sensor (522), infrared thermal imager (519), temperature sensor (520) and humidity sensor (521) are connected to the data processing module (7) through line through hole one (53) or line through hole two (54), top plate line through hole one (37) or top plate line through hole two (38). The lifting device (8) includes a lifting rope (81), a lifting frame (82), and a lifting control device (83). The lifting rope (81) is connected to a rotating rod (518), and the lifting control device (83) cooperates with the lifting frame (82) to lift the rotatable bottom disc (56) and the reinforced concrete test block (524) on it.

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