Carbonization detection box for concrete durability detection

Abstract

The utility model discloses a carbonization detection box for concrete durability detection, which comprises a detection box main body, and a carbonization mechanism is mounted in the detection box main body; the detection box main body comprises a box body; the carbonization mechanism comprises a carbonization box located in an inner cavity of the box body, one end of the carbonization box is in threaded connection with a sealing cover, the surface of the carbonization box is communicated with a first electromagnetic valve and a second electromagnetic valve, the gas inlet end of the second electromagnetic valve is communicated with a manual flow regulating valve, and the gas inlet end of the manual flow regulating valve is communicated with a carbon dioxide gas cylinder. A carbon dioxide sensor is fixedly mounted on the surface of the carbonization box. The carbonation detection box has the advantage of controlling the concentration of carbon dioxide, and solves the problems that the concentration of carbon dioxide in the carbonation detection box is inconvenient to control and the durability change of a concrete test piece under different concentrations of carbon dioxide is difficult to reflect in the use process of the existing carbonation detection box for concrete durability detection.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to a carbonation detection box for concrete durability detection. Background Technique

[0002] The carbonation detection box for concrete durability detection, also known as the concrete carbonation test box, is a laboratory device specifically designed to simulate the situation of concrete being eroded by carbon dioxide in the atmosphere in the actual environment. In the field of construction engineering, the carbonation of concrete will reduce the alkaline environment of the concrete, thereby affecting the passivation layer protection effect of the steel bars, which may lead to the corrosion of the steel bars and affect the durability and service life of the concrete structure.

[0003] During the use of the existing carbonation detection box for concrete durability detection, it is not convenient to control the carbon dioxide concentration inside the carbonation detection box, and it is difficult to reflect the change of the durability of concrete specimens under different carbon dioxide concentrations. Content of the Utility Model

[0004] The purpose of the utility model is to provide a carbonation detection box for concrete durability detection, which has the advantage of controlling the carbon dioxide concentration, and solves the problem that during the use of the existing carbonation detection box for concrete durability detection, it is not convenient to control the carbon dioxide concentration inside the carbonation detection box, and it is difficult to reflect the change of the durability of concrete specimens under different carbon dioxide concentrations.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a carbonation detection box for concrete durability detection, including a detection box main body, and a carbonation mechanism is installed inside the detection box main body;

[0006] The detection box main body includes a box body;

[0007] The carbonation mechanism includes a carbonation box located in the inner cavity of the box body. One end of the carbonation box is threadedly connected with a sealing cover. The surface of the carbonation box is respectively communicated with a first electromagnetic valve and a second electromagnetic valve. The air inlet end of the second electromagnetic valve is communicated with a manual flow regulating valve. The air inlet end of the manual flow regulating valve is communicated with a carbon dioxide gas cylinder. A carbon dioxide sensor is fixedly installed on the surface of the carbonation box, and the detection end of the carbon dioxide sensor penetrates into the inner cavity of the carbonation box.

[0008] Preferably, as a carbonation detection box for concrete durability detection of the utility model, a fixed base is fixedly connected to the bottom of the inner wall of the box body, and the bottom of the fixed base is fixedly connected with the bottom of the carbonation box.

[0009] Preferably, as a carbonation detection box for concrete durability detection of the utility model, legs are fixedly connected to the four corners of the bottom of the box body, and anti-slip pads are provided at the bottoms of the legs.

[0010] Preferably, for a carbonation detection box for concrete durability detection of the present utility model, a control panel is fixedly installed on the front surface of the box body, and a display screen is provided on the front surface of the control panel.

[0011] Preferably, for a carbonation detection box for concrete durability detection of the present utility model, an installation hole for cooperating with a sealing cover is provided on one side of the box body.

[0012] Preferably, for a carbonation detection box for concrete durability detection of the present utility model, a sliding rod is fixedly connected to the left end of the sealing cover, a plate body is fixedly connected to the left end of the sliding rod, the plate body is movably connected to the inner wall of the carbonation box, a lead screw is rotatably connected to the right side of the plate body, the right end of the lead screw penetrates to the right side of the sealing cover and is provided with a rotating member, a clamping member is sleeved on the surface of the lead screw in a threaded manner, and the clamping member is movably sleeved on the surface of the sliding rod.

[0013] Preferably, for a carbonation detection box for concrete durability detection of the present utility model, a support frame is movably connected to the bottom surface of the carbon dioxide gas cylinder, the support frame is fixedly connected to the rear side of the box body, a fixing member is movably connected to the top of the carbon dioxide gas cylinder, and the fixing member is fixedly connected to the top of the support frame through bolts to limit the carbon dioxide gas cylinder.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By setting a carbonation mechanism, the present utility model can facilitate the carbon dioxide durability detection of concrete specimens, and during the detection process, the concentration of carbon dioxide can be adjusted. Concrete will be affected by the penetration and reaction of carbon dioxide in the atmosphere in the natural environment, thus causing a carbonation phenomenon. Controlling the carbon dioxide concentration in the carbonation mechanism can simulate the real concrete carbonation rate and reflect the change of concrete durability under different concentrations of carbon dioxide.

[0016] 2. By setting a detection box body, the present utility model can facilitate the protection of the carbonation mechanism inside the detection box body, prevent the carbonation box from being damaged by collision, improve the safety of the carbonation detection box, and moreover, by providing an installation hole, it is convenient to install the sealing cover, increasing the convenience of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the main view axonometric drawing of the present utility model;

[0018] Figure 2 is the main view axonometric drawing of the detection box body of the present utility model;

[0019] Figure 3 is the main view axonometric drawing of the carbonation mechanism of the present utility model;

[0020] Figure 4 This is the rear axonometric view of the carbonization mechanism of the present utility model;

[0021] Figure 5 This is the front sectional axonometric view of the carbonization mechanism of the present utility model.

[0022] In the figure: 1. Detection box main body; 101. Box body; 102. Control panel; 103. Display screen; 104. Installation hole; 105. Fixed base; 106. Leg; 2. Carbonization mechanism; 201. Carbonization box; 202. Second solenoid valve; 203. Support frame; 204. Carbon dioxide gas cylinder; 205. Fixing piece; 206. Manual flow regulating valve; 207. First solenoid valve; 208. Rotating piece; 209. Sealing cover; 210. Carbon dioxide sensor; 211. Plate body; 212. Clamping piece; 213. Slide bar; 214. Lead screw. Specific implementation manner

[0023] Please refer to Figures 1 - 5 , a carbonization detection box for concrete durability detection, including a detection box main body 1, and a carbonization mechanism 2 is installed inside the detection box main body 1.

[0024] Further, the detection box main body 1 includes a box body 101, a fixed base 105 is fixedly connected to the bottom of the inner wall of the box body 101, the fixed base 105 is fixedly connected to the bottom of the carbonization box 201, and a control panel 102 is fixedly installed on the front of the box body 101, and a display screen 103 is arranged on the front of the control panel 102.

[0025] By setting the detection box main body 1, it is possible to facilitate the protection of the carbonization mechanism 2 inside the detection box main body 1, prevent the carbonization box 201 from being damaged by collision, improve the safety of the carbonization detection box, and moreover, by opening the installation hole 104, it is possible to facilitate the installation of the sealing cover 209 and increase the convenience of the experiment.

[0026] Further, legs 106 are fixedly connected to the four corners of the bottom of the box body 101, anti-slip pads are arranged at the bottoms of the legs 106, the legs 106 stably support the bottom of the box body 101, and the anti-slip pads increase the friction at the bottoms of the legs 106.

[0027] Further, an installation hole 104 is opened on one side of the box body 101 and is used in cooperation with the sealing cover 209. By opening the installation hole 104, it is possible to facilitate screwing the sealing cover 209 onto the carbonization box 201.

[0028] Further, the carbonization mechanism 2 includes a carbonization box 201 located inside the box body 101. One end of the carbonization box 201 is threadedly connected with a sealing cover 209. The surface of the carbonization box 201 is respectively communicated with a first electromagnetic valve 207 and a second electromagnetic valve 202. The air inlet end of the second electromagnetic valve 202 is communicated with a manual flow regulating valve 206. The air inlet end of the manual flow regulating valve 206 is communicated with a carbon dioxide gas cylinder 204. A carbon dioxide sensor 210 is fixedly installed on the surface of the carbonization box 201, and the detection end of the carbon dioxide sensor 210 penetrates into the inner cavity of the carbonization box 201.

[0029] By setting the carbonization mechanism 2, it is convenient to conduct carbon dioxide durability tests on concrete specimens, and during the test, the concentration of carbon dioxide can be adjusted. Concrete will be affected by the penetration and reaction of carbon dioxide in the atmosphere in the natural environment, resulting in carbonization. Controlling the carbon dioxide concentration in the carbonization mechanism 2 can simulate the actual carbonization rate of concrete and reflect the changes in the durability of concrete under different concentrations of carbon dioxide.

[0030] Further, a sliding rod 213 is fixedly connected to the left end of the sealing cover 209. A plate body 211 is fixedly connected to the left end of the sliding rod 213. The plate body 211 is movably connected to the inner wall of the carbonization box 201. A lead screw 214 is rotatably connected to the right side of the plate body 211. The right end of the lead screw 214 penetrates to the right side of the sealing cover 209 and is provided with a rotating member 208. A clamping member 212 is threadedly sleeved on the surface of the lead screw 214, and the clamping member 212 is movably sleeved on the surface of the sliding rod 213.

[0031] When conducting carbonization durability tests on concrete specimens, place the pre-prepared concrete specimens on the opposite side of the clamping member 212 and the sealing cover 209. Rotate the lead screw 214 through the rotating member 208. The lead screw 214 drives the clamping member 212 to move. While the clamping member 212 slides on the surface of the sliding rod 213, it gradually approaches the concrete specimen and clamps the concrete specimen on the right side of the sealing cover 209. By fixing the concrete specimen, it is prevented from shaking during the experiment. After installation, screw the sealing cover 209 onto the right end of the carbonization box 201 and place the concrete specimen in the inner cavity of the carbonization box 201.

[0032] Further, a support frame 203 is movably connected to the bottom surface of the carbon dioxide gas cylinder 204. The support frame 203 is fixedly connected to the rear side of the box body 101. A fixing member 205 is movably connected to the top of the carbon dioxide gas cylinder 204. The fixing member 205 is fixedly connected to the top of the support frame 203 by bolts to limit the carbon dioxide gas cylinder 204.

[0033] The concentration of carbon dioxide inside the carbonization box 201 is set through the control panel 102. After the setting is completed, the carbon dioxide sensor 210 detects the carbon dioxide concentration inside the carbonization box 201. When the detected concentration is lower than the set concentration, the control panel 102 opens the second solenoid valve 202, and the carbon dioxide gas inside the carbon dioxide cylinder 204 enters the inner cavity of the carbonization box 201 through the manual flow control valve 206 and the second solenoid valve 202, thereby increasing the carbon dioxide concentration inside the carbonization box 201 and performing a carbonization experiment on the concrete specimen. The manual flow control valve 206 can be used to control the gas outlet flow of the carbon dioxide cylinder 204, so that carbon dioxide slowly enters the carbonization box 201, thereby increasing the control accuracy. When the detected concentration reaches the set value, the control panel 102 closes the second solenoid valve 202.

[0034] When the carbon dioxide concentration inside the carbonization box 201 is too high, the control panel 102 opens the first solenoid valve 207, and the first solenoid valve 207 discharges the carbon dioxide gas inside the carbonization box 201, and the external air enters the carbonization box 201 through the first solenoid valve 207 to reduce the carbon dioxide concentration inside the carbonization box 201. When it is reduced to the set value, the first solenoid valve 207 is closed to achieve precise control of the carbon dioxide concentration. By accurately controlling the carbon dioxide concentration, the anti-carbonation performance of different concrete formulas, additives or curing conditions can be compared under the same test conditions. Under normal circumstances, the carbonization process on site may take several years to decades, and by increasing the carbon dioxide concentration in the carbonization detection box, this process can be accelerated, shortening the test cycle and speeding up the research and development progress.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A carbonization test box for concrete durability testing, comprising a test box body (1), characterized in that: A carbonization mechanism (2) is installed inside the detection box body (1); The detection box main body (1) comprises a box body (101); The carbonization mechanism (2) comprises a carbonization box (201) located in the inner cavity of the box body (101); one end of the carbonization box (201) is threadedly connected to a sealing cover (209); the surface of the carbonization box (201) is respectively connected to a first solenoid valve (207) and a second solenoid valve (202); the air inlet end of the second solenoid valve (202) is connected to a manual flow regulating valve (206); the air inlet end of the manual flow regulating valve (206) is connected to a carbon dioxide gas cylinder (204); a carbon dioxide sensor (210) is fixedly mounted on the surface of the carbonization box (201); and the detection end of the carbon dioxide sensor (210) extends through the inner cavity of the carbonization box (201).

2. The carbonization detection box for concrete durability detection according to claim 1, characterized in that: A fixed base (105) is fixedly connected to the bottom of the inner wall of the box body (101), and the fixed base (105) is fixedly connected to the bottom of the carbonization box (201).

3. The carbonization detection box for concrete durability detection according to claim 1, characterized in that: The four corners of the bottom of the box body (101) are fixedly connected with supporting legs (106), and the bottom of the supporting legs (106) is provided with an anti-slip pad.

4. The carbonization detection box for concrete durability detection according to claim 1, characterized in that: A control panel (102) is fixedly mounted on the front of the box (101), and a display screen (103) is provided on the front of the control panel (102).

5. The carbonization detection box for concrete durability detection according to claim 1, characterized in that: A mounting hole (104) for use with a sealing cover (209) is provided on one side of the box body (101).

6. The carbonization detection box for concrete durability detection according to claim 1, characterized in that: The left end of the sealing cover (209) is fixedly connected to a sliding rod (213), and the left end of the sliding rod (213) is fixedly connected to a plate body (211). The plate body (211) is movably connected to the inner wall of the carbonization box (201). The right side of the plate body (211) is rotatably connected to a screw rod (214). The right end of the screw rod (214) passes through the right side of the sealing cover (209) and is installed with a rotating part (208). The surface of the screw rod (214) is threadedly sleeved with a clamping part (212), and the clamping part (212) is movably sleeved on the surface of the sliding rod (213).

7. The carbonization detection box for concrete durability detection according to claim 1, characterized in that: The bottom of the surface of the carbon dioxide gas cylinder (204) is movably connected to a support frame (203), the support frame (203) is fixedly connected to the rear side of the box body (101), and the top of the carbon dioxide gas cylinder (204) is movably connected to a fixing piece (205), and the fixing piece (205) is fixedly connected to the top of the support frame (203) by bolts to limit the position of the carbon dioxide gas cylinder (204).

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