Auxiliary device for concrete chloride ion penetration resistance test

Abstract

The utility model discloses an auxiliary device for a concrete chloride ion penetration resistance test, and relates to the technical field of concrete detection. Comprising a fixing frame, a concrete test piece arranged in the fixing frame, a clamping mechanism rotationally arranged at the top of the fixing frame and used for clamping the concrete test piece, and a heating coating mechanism arranged at the bottom of the fixing frame and used for coating the side face of the concrete test piece with a sealing material. The concrete test piece is driven to rotate by shaking the rocking handle, so that sealing materials such as paraffin in the heating box can be smeared on the side surface of the rotating concrete test piece, auxiliary coating is carried out on the concrete test piece in a concrete chloride ion penetration resistance test, and excessive sealing materials such as paraffin on the side surface of the concrete can be scraped off through the scraping plate; the thickness of a sealing material layer such as paraffin can be maintained in a set area, the uniformity and accuracy of the coating can be guaranteed, and consumption and waste of the sealing material such as the paraffin can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to an auxiliary device for concrete anti-chloride ion penetration test. Background Art

[0002] As the height and span of modern engineering structures continue to increase, the use environment conditions are becoming increasingly severe, and the requirements for the strength and durability of concrete in engineering construction are getting higher and higher. It has become a trend to use industrial waste slag as a mineral admixture to prepare concrete and achieve high performance of concrete. For example, silica fume concrete, which uses silica fume admixture to prepare concrete, can not only save cement, but also save the resources needed to produce cement. Silica fume concrete needs to undergo tests such as concrete resistance to chloride ion penetration, and can only be put into the market after passing the test.

[0003] According to the "Standard for Test Methods of Long-term Performance and Durability of Ordinary Concrete" (GB / T50082

[0004] 2009), the concrete resistance to chloride ion penetration test can be measured by the rapid chloride ion migration coefficient method (RCM method for short) or the electric flux method, in which the electric flux method determines the concrete resistance to chloride ion penetration by measuring the electric flux value passing through the concrete specimen for 6 hours. During the test, the concrete specimens cured to the specified age are exposed to the air until the surface is dry, and the melted paraffin wax, resin and other sealing materials are brushed on the side of the cylindrical concrete specimen.

[0005] The patent with announcement number CN210571638U discloses "a wax coating device for concrete electric flux specimens, which belongs to the technical field of concrete resistance to chloride ion penetration test, and includes a heating base, a wax box arranged on the heating base, supporting columns arranged on both sides of the wax box, a tail ring and a driving ring. The concrete electric flux specimen wax coating device provided by the utility model can quickly and evenly coat paraffin on the side of the cylindrical concrete specimen, thereby improving the precision and accuracy of the electric flux method for testing the chloride ion penetration resistance of concrete, and has a simple structure, easy production, and few consumables."

[0006] Regarding the above-mentioned related technologies, the inventors believe that the paraffin in the heating base is applied to the side of the concrete by rotating the concrete specimen. However, sealing materials such as paraffin are more viscous after heating, which may cause too much paraffin to be applied to the side of the concrete, resulting in an excessively thick paraffin layer on the side of the concrete, thereby increasing the consumption and waste of sealing materials such as paraffin, and therefore needs to be improved. Utility Model Content

[0007] The utility model aims at the deficiencies of the prior art and provides an auxiliary device for concrete chloride ion penetration resistance test. The specific technical scheme is as follows:

[0008] The auxiliary device for concrete resistance to chloride ion penetration test comprises a fixed frame, a concrete specimen arranged in the fixed frame, a clamping mechanism rotatably arranged at the top of the fixed frame for clamping the concrete specimen, and a heating coating mechanism arranged at the bottom of the fixed frame for applying sealing material to the side of the concrete specimen. The heating coating mechanism comprises a heating box fixedly arranged at the bottom of the inner side of the fixed frame and filled with sealing materials such as paraffin wax, and a heating element fixedly arranged at the bottom of the inner side of the heating box for heating the sealing material. The bottom end of the concrete specimen is movably immersed in the sealing material of the heating box. A scraper is fixedly arranged at the top of the inner side of the heating box for scraping off excess sealing material on the concrete specimen after rotation. A roller mechanism is arranged in the heating box for supporting the concrete specimen during coating.

[0009] By adopting the above technical solution, the excess sealing materials such as paraffin on the side of the concrete can be scraped off by the scraper, so that the thickness of the sealing material layer such as paraffin can be maintained within the set area.

[0010] Optionally, a telescopic member is fixedly provided at the top inner side of the fixed frame, a U-shaped frame is fixedly provided at the bottom end of the telescopic member, an electric push rod is fixedly provided at one inner end of the U-shaped frame, and a rotating rod is rotatably provided at the other inner end of the U-shaped frame.

[0011] By adopting the above technical solution, after the telescopic member is extended and retracted, it will drive the U-shaped frame to move up and down, and the fixed frame can support the telescopic member and other components.

[0012] Optionally, the clamping mechanism includes a first clamping plate and a second clamping plate which are respectively fitted and abutted on both sides of the concrete specimen, the first clamping plate is rotatably arranged at the telescopic end of the electric push rod, the second clamping plate is fixedly arranged at one end of the rotating rod, a bearing is fixedly arranged in the first clamping plate, the telescopic end of the electric push rod is rotatably connected in the bearing, a crank handle located outside the U-shaped frame is fixedly arranged at one end of the rotating rod, the scraper is inclined, and the scraper is located above the sealing material in the heating box.

[0013] By adopting the above technical solution, after placing the concrete specimen on the second clamping plate, people can shorten the electric push rod so that the first clamping plate after lateral movement can cooperate with the second clamping plate to clamp and fix the concrete specimen, and people can drive the rotating rod, the second clamping plate, the concrete specimen, the first clamping plate and other components to rotate together by shaking the handle.

[0014] Optionally, the drum mechanism includes an axle rotatably arranged on the inner side of the heating box, and a support tube fixedly arranged in the middle of the outer wall of the axle, the top of the support tube abuts against the bottom of the concrete specimen, and stirring blades for stirring the sealing material in the heating box are fixedly arranged on the outer walls at both ends of the axle.

[0015] By adopting the above technical solution, the concrete specimen can be supported during coating by means of a roller mechanism such as a support cylinder, thereby improving the rotation stability of the concrete specimen during coating.

[0016] In summary, the present invention has at least one of the following beneficial effects:

[0017] 1. The concrete specimen is rotated by shaking the handle, so that the sealing materials such as paraffin in the heating box can be applied to the side of the rotating concrete specimen. In the concrete chloride ion penetration test, the concrete specimen is subjected to auxiliary coating. The excess paraffin and other sealing materials on the side of the concrete can be scraped off by the scraper, so that the thickness of the paraffin and other sealing materials layer can be maintained within the set area, which can ensure the uniformity and accuracy of the coating and reduce the consumption and waste of sealing materials such as paraffin.

[0018] 2. The concrete specimen can be supported during coating by means of a roller mechanism such as a support cylinder, thereby improving the rotation stability of the concrete specimen during coating. After the concrete specimen rotates and drives the roller mechanism to rotate, the rotating stirring blades can stir and mix the sealing material in the heating box, so that the temperature in the sealing material such as paraffin can be evenly distributed, and temperature differences are less likely to occur, which is convenient for coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the overall structure of the utility model;

[0020] Figure 2 It is a front view cross-sectional view of the overall structure of the utility model;

[0021] Figure 3 It is a left side cross-sectional view of the overall structure of the utility model.

[0022] Explanation of the reference numerals: 1. fixed frame; 11. telescopic member; 12. U-shaped frame; 2. concrete specimen; 3. first clamping plate; 31. second clamping plate; 32. bearing; 33. electric push rod; 34. rotating rod; 35. crank handle; 4. heating box; 41. heating element; 5. scraper; 6. shaft; 61. support cylinder; 62. mixing blade. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 The utility model is described in further detail.

[0024] The utility model embodiment discloses a concrete chloride ion penetration resistance test auxiliary device, referring to Figure 1-2 , including a fixing frame 1, a concrete specimen 2 arranged in the fixing frame 1, a clamping mechanism rotatably arranged at the top of the fixing frame 1 for clamping the concrete specimen 2, and a heating coating mechanism arranged at the bottom of the fixing frame 1 for applying a sealing material to the side of the concrete specimen 2. The concrete specimen 2 is an existing silica fume concrete specimen.

[0025] Reference Figure 1-2 A telescopic member 11 is fixedly provided at the top inner side of the fixed frame 1, and a U-shaped frame 12 is fixedly provided at the bottom end of the telescopic member 11. The telescopic member 11 is a power device that can be lifted or lowered, such as an existing cylinder, a hydraulic cylinder, and an electric telescopic rod. After the telescopic member 11 is extended or retracted, it will drive the U-shaped frame 12 to move up and down, and the fixed frame 1 can support the telescopic member 11 and other components.

[0026] Reference Figure 1-2 An electric push rod 33 is fixedly provided at one end of the inner side of the U-shaped frame 12, and a rotating rod 34 is rotatably provided at the other end of the inner side of the U-shaped frame 12. The clamping mechanism includes a first clamping plate 3 and a second clamping plate 31 which are respectively matched and abutted on both sides of the concrete specimen 2. The first clamping plate 3 is rotatably provided at the telescopic end of the electric push rod 33, and the second clamping plate 31 is fixedly provided at one end of the rotating rod 34. A bearing 32 is fixedly provided in the first clamping plate 3, and the telescopic end of the electric push rod 33 is rotatably connected in the bearing 32. A crank handle 35 located outside the U-shaped frame 12 is fixedly provided at one end of the rotating rod 34. After the electric push rod 33 is extended and retracted, it will drive the first clamping plate 3 to move laterally. The bearing 32 can connect the electric push rod 33 and the first clamping plate 3, and reduce the friction and resistance of the first clamping plate 3 when it rotates.

[0027] After placing the concrete specimen 2 on the second clamping plate 31, people can shorten the electric push rod 33 so that the first clamping plate 3 after horizontal movement can cooperate with the second clamping plate 31 to clamp and fix the concrete specimen 2, and people can drive the rotating rod 34, the second clamping plate 31, the concrete specimen 2 and the first clamping plate 3 to rotate together by shaking the handle 35.

[0028] Reference Figure 2-3 The coating heating mechanism includes a heating box 4 fixed at the inner bottom of the fixing frame 1 and filled with sealing materials such as paraffin, and a heating element 41 fixed at the inner bottom of the heating box 4 for heating the sealing materials. The heating element 41 is an object with a heating effect such as an existing electric heating plate. The heating element 41 can heat the sealing materials such as paraffin in the heating box 4 to prevent the sealing materials such as paraffin from solidifying after natural cooling and making it impossible to coat the coating.

[0029] Reference Figure 2-3 The bottom end of the concrete specimen 2 is movably immersed in the sealing material of the heating box 4, so that after the concrete specimen 2 rotates, the sealing material of the heating box 4 can slowly cover the side of the concrete specimen 2, thereby coating the concrete specimen 2, and the first clamping plate 3 and the second clamping plate 31 can completely cover and shield both sides of the concrete specimen 2, so that the sealing material will not stick to the sides of the concrete specimen 2.

[0030] Reference Figure 3A scraper 5 is fixedly provided on the top of the inner side of the heating box 4 for scraping off excess sealing material on the concrete specimen 2 after rotation. The scraper 5 is inclined and is located above the sealing material in the heating box 4. The scraper 5 close to the concrete specimen 2 can scrape off excess sealing material on the concrete specimen 2, and the scraped sealing material can flow to the bottom of the heating box 4 under the guidance of the inclined scraper 5.

[0031] Reference Figure 2-3 A roller mechanism for supporting the concrete specimen 2 during coating is provided in the heating box 4. The roller mechanism includes a shaft rod 6 rotatably arranged inside the heating box 4, and a support tube 61 fixedly arranged in the middle of the outer wall of the shaft rod 6. The top of the support tube 61 is in contact with the bottom of the concrete specimen 2. The outer surface of the support tube 61 can be a frosted surface to increase the friction between the support tube 61 and the concrete specimen 2. The support tube 61 and the shaft rod 6 can support the top of the concrete specimen 2, and the concrete specimen 2 will drive the abutting support tube 61 to rotate after rotating.

[0032] Reference Figure 2-3 The outer walls of both ends of the shaft 6 are fixed with stirring blades 62 for stirring the sealing material in the heating box 4. After the support tube 61 rotates, the stirring blades 62 will be driven to rotate through the shaft 6. The rotating stirring blades 62 can stir and mix the sealing material in the heating box 4, so that the internal temperature of the sealing material such as paraffin can be evenly distributed, and it is not easy to have temperature difference, which is convenient for coating.

[0033] The implementation principle of the auxiliary device for concrete chloride ion penetration resistance test of the utility model embodiment is:

[0034] When in use, people can first place the concrete specimen 2 on the second clamping plate 31, and shorten the electric push rod 33, so that the first clamping plate 3 after horizontal movement can cooperate with the second clamping plate 31 to clamp and fix the concrete specimen 2, and then people can control the telescopic member 11 to extend and retract to drive the clamped concrete specimen 2 to move up and down;

[0035] When the concrete specimen 2 descends and contacts the support tube 61, the bottom of the concrete specimen 2 will be immersed in the sealing material liquid such as paraffin heated by the heating element 41 in the heating box 4. Then people can drive the rotating rod 34, the second clamping plate 31, the concrete specimen 2 and the first clamping plate 3 to rotate together by shaking the handle 35. After the concrete specimen 2 rotates, the sealing material of the heating box 4 can slowly cover the side of the concrete specimen 2, so as to perform auxiliary coating on the concrete specimen 2 in the concrete chloride ion penetration resistance test;

[0036] At the same time, the scraper 5 close to the concrete specimen 2 can scrape off the excess sealing material on the concrete specimen 2, so that the thickness of the sealing material layer such as paraffin can be maintained within the set area, which can not only ensure the uniformity and accuracy of the coating, but also reduce the consumption and waste of sealing materials such as paraffin.

[0037] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A concrete chloride ion penetration resistance test auxiliary device, comprising a fixed frame (1), a concrete test piece (2) arranged in the fixed frame (1), a clamping mechanism rotatably arranged at the top of the fixed frame (1) for clamping the concrete test piece (2), and a heating coating mechanism arranged at the bottom of the fixed frame (1) for applying a sealing material to the side of the concrete test piece (2), characterized in that: The coating heating mechanism comprises a heating box (4) fixedly arranged at the bottom of the inner side of the fixing frame (1) and filled with sealing material, and a heating element (41) fixedly arranged at the bottom of the inner side of the heating box (4) for heating the sealing material. The bottom end of the concrete specimen (2) is movably immersed in the sealing material of the heating box (4). A scraper (5) is fixedly arranged at the top of the inner side of the heating box (4) for scraping off excess sealing material on the concrete specimen (2) after rotation. A roller mechanism is arranged inside the heating box (4) for supporting the concrete specimen (2) during coating.

2. The auxiliary device for concrete chloride ion penetration resistance test according to claim 1, characterized in that: A telescopic member (11) is fixedly provided at the top of the inner side of the fixed frame (1), and a U-shaped frame (12) is fixedly provided at the bottom end of the telescopic member (11).

3. The auxiliary device for concrete chloride ion penetration resistance test according to claim 2, characterized in that: An electric push rod (33) is fixedly provided at one end of the inner side of the U-shaped frame (12), and a rotating rod (34) is rotatably provided at the other end of the inner side of the U-shaped frame (12).

4. The auxiliary device for concrete chloride ion penetration resistance test according to claim 3 is characterized in that: The clamping mechanism comprises a first clamping plate (3) and a second clamping plate (31) respectively cooperating with and abutting against two sides of the concrete specimen (2); the first clamping plate (3) is rotatably arranged at the telescopic end of the electric push rod (33); and the second clamping plate (31) is fixedly arranged at one end of a rotating rod (34).

5. The auxiliary device for concrete chloride ion penetration resistance test according to claim 4 is characterized in that: A bearing (32) is fixedly provided inside the first clamping plate (3), the telescopic end of the electric push rod (33) is rotatably connected inside the bearing (32), and a crank handle (35) located outside the U-shaped frame (12) is fixedly provided at one end of the rotating rod (34).

6. The auxiliary device for concrete chloride ion penetration resistance test according to claim 1, characterized in that: The scraper (5) is arranged at an angle, and the scraper (5) is located above the sealing material in the heating box (4).

7. The auxiliary device for concrete chloride ion penetration resistance test according to claim 1, characterized in that: The roller mechanism comprises a shaft (6) rotatably arranged inside the heating box (4), and a support tube (61) fixedly arranged in the middle of the outer wall of the shaft (6), wherein the top of the support tube (61) cooperates with and abuts against the bottom of the concrete specimen (2).

8. The auxiliary device for concrete chloride ion penetration resistance test according to claim 7, characterized in that: Stirring blades (62) for stirring the sealing material in the heating box (4) are fixedly provided on the outer walls at both ends of the shaft rod (6).

Images