A device for testing the impermeability of high performance concrete

Abstract

The invention discloses a high-performance concrete anti-seepage performance testing device, which belongs to the field of building detection technology, and includes an operating table, a test mold, demonstration concrete and an inner layer detection mechanism, wherein the test mold is arranged above the operating table, the demonstration concrete is arranged inside the test mold, the demonstration concrete includes a concrete pile, a test hole is provided through the center of the concrete pile, the inner layer detection mechanism is arranged inside the test hole, the inner layer detection mechanism includes a sealing cylinder and a detection cylinder, the detection cylinder is arranged inside the sealing cylinder, a sealing air bag is provided on the side wall of the sealing cylinder, a detection chamber is provided in a linear array in the detection cylinder, and water-absorbing resin particles that swell when exposed to water are quantitatively provided in the detection chamber. Compared with the traditional concrete anti-seepage performance testing device, the present invention can automatically lock the test mold without manual tightening and fixing, and can intuitively detect the penetration situation inside the concrete, and more accurately detect the anti-seepage performance of the concrete.

Description

Technical Field

[0001] The invention belongs to the technical field of building detection, and specifically refers to a high-performance concrete anti-seepage performance detection device. Background Art

[0002] In the construction inspection industry, the test of concrete impermeability is often involved. The so-called impermeability refers to the performance of the materials used in buildings to resist the penetration of water and other liquid media under pressure. At present, when testing the impermeability of concrete, it is generally necessary to first place the cylindrical concrete in the test mold, and then buckle the test mold on the mold base, and lock the mold body on the mold base through multiple bolts to limit the concrete test block, and then turn on the switch of the control water pipe, adjust the test water pressure, so that water is pressed upward from the bottom of the concrete, and then conduct subsequent concrete test block impermeability tests.

[0003] However, this detection method can only observe whether water seeps out from the top of the test block after the experiment. Therefore, usually 6 groups of test blocks are needed to test the conditions under different water pressures, and then the results are obtained by calculation based on the water seepage conditions. It is impossible to intuitively understand the degree of permeability inside the concrete. At the same time, the existing concrete impermeability test device usually requires the experimenter to manually tighten the array nuts to fix the test mold, which is more cumbersome. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a high-performance concrete anti-permeability performance testing device, which can intuitively observe the degree of permeability inside the concrete and can automatically fix the test mold, which is more convenient.

[0005] The technical solution adopted by the present invention is as follows: A high-performance concrete anti-seepage performance detection device provided by the present invention includes an operating table, a test mold, demonstration concrete and an inner layer detection mechanism, the test mold is arranged above the operating table, the demonstration concrete is arranged inside the test mold, the demonstration concrete includes a concrete pile, a test hole is penetrated through the center of the concrete pile, and the inner layer detection mechanism is arranged inside the test hole.

[0006] Furthermore, the inner layer detection mechanism includes a sealing cylinder and a detection cylinder, the detection cylinder is arranged on the inner side of the sealing cylinder, the sealing cylinder is a cylindrical structure with an opening at the top, a sealing airbag is arranged on the side wall of the sealing cylinder, a card groove is opened on the bottom wall of the sealing cylinder, an air pipe is arranged in a circular array on the bottom wall of the sealing cylinder, the air pipe is communicated with the sealing airbag, and a water inlet hole is arranged in a linear array on the side wall of the sealing cylinder, the water inlet holes respectively penetrate the cylinder wall of the sealing cylinder and the sealing airbag, and the water inlet holes do not destroy the sealing property of the sealing airbag.

[0007] Furthermore, the detection cylinder is a cylindrical structure with an opening at the bottom, the outer wall of the detection cylinder is fitted with the inner wall of the sealing cylinder, a handle is provided on the top of the detection cylinder, a detection chamber is provided in a linear array inside the detection cylinder, water-absorbing resin particles that swell when exposed to water are quantitatively provided in the detection chamber, filter holes are provided on the side walls of the detection chamber, a sliding buckle is provided on the outer wall of the detection chamber, the sliding buckle is fitted with the inner wall of the water inlet hole, the sliding buckle is made of rubber, the buckle is fitted with the slot, and the air pipe is fitted with the air hole.

[0008] Furthermore, the operating table includes a base, the interior of the base is hollow, a water tank and a sealing groove one are opened on the top of the base, the sealing groove one is arranged on the outside of the water tank, a center platform is provided in the center of the water tank, a base and a rubber ring two are provided on the top wall of the center platform, the rubber ring two is arranged on the outside of the base, a buckle is provided on the top of the base, a circular array of air holes is opened on the top wall of the base, an air pump is provided under the top wall of the base, and the air pump is communicated with the air holes.

[0009] Furthermore, a circular array of fixing through holes is provided on the top wall of the base, a fixing screw is rotatably provided in the fixing through hole, a gasket is sleeved on the fixing screw, a passive gear is provided at the bottom of the fixing screw, the passive gear is arranged inside the base, a transmission gear ring is rotatably provided at the bottom of the top wall of the base, and the transmission gear ring is meshed with the passive gear.

[0010] Furthermore, a support rod is provided on the bottom wall of the base, a drive motor is provided on the top of the support rod, a driving gear is provided on the output end of the drive motor, and the driving gear is meshed with a transmission gear ring. When the drive motor drives the driving gear to rotate, the driving gear drives the transmission gear ring to drive the passive gear to rotate, thereby rotating the fixed screw.

[0011] Furthermore, a water supply pipe is provided through the side wall of the base, the water supply pipe is communicated with the water tank, and the water supply pipe is used for connecting an external water supply device.

[0012] Furthermore, the test mold includes a sleeve, a barrel edge and a second sealing groove. The barrel edge is arranged at the bottom of the sleeve, and the second sealing groove is arranged at the bottom of the barrel edge. The barrel edge is provided with a screw hole array on the circumference, and the screw hole is engaged with the thread of the fixing screw. The second sealing groove is arranged directly above the first sealing groove.

[0013] Furthermore, a rubber ring 1 is provided between the sealing groove 1 and the sealing groove 2.

[0014] Furthermore, a rubber ring three is sleeved on the outer side of the concrete pile, and the diameter of the test hole is slightly larger than the diameter of the base and smaller than the diameter of the center platform.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: a high-performance concrete anti-seepage performance testing device provided by the present scheme, after three sets of rubber rings are arranged on the outside of the concrete pile, the demonstration concrete is pressed into the test mold, and then the test mold is placed above the operating table, the screw hole is aligned with the fixing screw, and then the drive motor is started, the active gear drives the transmission gear ring to drive the passive gear to rotate, and after the fixing screw rotates, the test mold is automatically pressed downward through the screw hole, and there is no need to tighten and fix it manually, start the air pump, blow air upward through the air hole to clean the dust in the test hole, and then insert the inner layer detection mechanism into the test hole, press the inner layer detection mechanism downward after the air pipe is aligned with the air hole, insert the buckle into the card slot to fix the inner layer detection mechanism, and then start the air pump again, the sealing airbag expands, blocks the inner wall of the test hole, so that water can flow out from The upward penetration path of the bottom of the concrete pile is the same as that of an ordinary test block. Water is prevented from seeping out of the inner wall of the test hole near the bottom in advance. An external water supply device is used to pressurize the water tank to start the test. After reaching the standard pressurization time, the test cylinder is rotated by the handle, and the slide buckle leaves the water inlet hole and is misaligned with the water inlet hole. The detection chamber is connected to the inner wall of the test hole through the filter hole and the water inlet hole. The test is completed after continuing to pressurize for a period of time. The water that penetrates into the concrete pile will enter the test chamber through the filter hole and the water inlet hole. The water-absorbing resin particles in the test chamber will expand after absorbing water. Then the detection cylinder is pulled out and the expansion of the water-absorbing resin particles in each detection chamber can be observed to observe the penetration of the concrete in different layers. Compared with traditional testing methods, it can more intuitively understand the anti-seepage performance of concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a high performance concrete anti-seepage performance testing device provided by the present invention;

[0017] Figure 2 A schematic diagram of the structure of the operating table provided by the present invention;

[0018] Figure 3 for Figure 2 A partial enlarged view of part A in FIG.

[0019] Figure 4 A three-dimensional cross-sectional view of the operating table provided by the present invention;

[0020] Figure 5 A schematic diagram of the structure of the test mold provided by the present invention;

[0021] Figure 6 A three-dimensional cross-sectional view of a high-performance concrete anti-permeability performance testing device provided by the present invention with the inner layer testing mechanism removed;

[0022] Figure 7 A schematic diagram of the structure of the inner layer detection mechanism provided by the present invention;

[0023] Figure 8A schematic diagram of the structure of the detection tube provided by the present invention;

[0024] Fig. 9 This is a cross-sectional view of the inner layer detection mechanism provided by the present invention.

[0025] Among them, 1. operating table, 2. test mold, 3. demonstration concrete, 4. inner layer detection mechanism, 5. rubber ring, 101. base, 102. water tank, 103. sealing groove, 104. support rod, 105. fixing through hole, 106. fixing screw, 107. gasket, 108. passive gear, 109. transmission gear ring, 110. driving motor, 111. driving gear, 112. water supply pipe, 113. center table, 114. base, 115. Rubber ring two, 116, air hole, 117, buckle, 118, air pump, 201, sleeve, 202, tube edge, 203, screw hole, 204, sealing groove two, 301, concrete pile, 302, test hole, 303, rubber ring three, 401, sealing tube, 402, sealing airbag, 403, air pipe, 404, slot, 405, water inlet hole, 406, detection tube, 407, handle, 408, detection chamber, 409, filter hole, 410, buckle.

[0026] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0029] like Figure 1-Figure 9As shown, a high-performance concrete anti-seepage performance testing device provided by the present invention includes an operating table 1, a test mold 2, a demonstration concrete 3 and an inner layer detection mechanism 4, the test mold 2 is arranged above the operating table 1, the demonstration concrete 3 is arranged inside the test mold 2, the demonstration concrete 3 includes a concrete pile 301, a test hole 302 is penetrated through the center of the concrete pile 301, and the inner layer detection mechanism 4 is arranged inside the test hole 302.

[0030] The inner layer detection mechanism 4 includes a sealing cylinder 401 and a detection cylinder 406. The detection cylinder 406 is arranged on the inner side of the sealing cylinder 401. The sealing cylinder 401 is a cylindrical structure with an opening at the top. The side wall of the sealing cylinder 401 is provided with a sealing airbag 402. The bottom wall of the sealing cylinder 401 is provided with a card groove 404. The bottom wall of the sealing cylinder 401 is provided with an air pipe 403 in a circular array. The air pipe 403 is communicated with the sealing airbag 402. The side wall of the sealing cylinder 401 is provided with a water inlet hole 405 in a linear array. The water inlet hole 405 passes through the cylinder wall of the sealing cylinder 401 and the sealing airbag 402 respectively. The water inlet hole 405 does not destroy the sealing of the sealing airbag 402.

[0031] The detection cylinder 406 is a cylindrical structure with an opening at the bottom. The outer wall of the detection cylinder 406 is in contact with the inner wall of the sealing cylinder 401. A handle 407 is provided on the top of the detection cylinder 406. A detection chamber 408 is provided in a linear array inside the detection cylinder 406. Water-absorbing resin particles that swell when exposed to water are quantitatively provided in the detection chamber 408. Filter holes 409 are provided on the side walls of the detection chamber 408. A sliding buckle 410 is provided on the outer wall of the detection chamber 408. The sliding buckle 410 is in contact with the inner wall of the water inlet hole 405. The sliding buckle 410 is made of rubber.

[0032] The operating table 1 includes a base 101, the interior of the base 101 is hollow, a water tank 102 and a sealing groove 103 are opened on the top of the base 101, the sealing groove 103 is arranged outside the water tank 102, a center platform 113 is arranged in the center of the water tank 102, a base 114 and a second rubber ring 115 are arranged on the top wall of the center platform 113, the second rubber ring 115 is arranged on the outside of the base 114, a buckle 117 is arranged on the top of the base 114, the buckle 117 is fitted with the card slot 404, and a circumferential array of air holes 116 is opened on the top wall of the base 114, and the air pipe 403 Fitting with the air hole 116, an air pump 118 is provided under the top wall of the base 101, and the air pump 118 is communicated with the air hole 116; a fixed through hole 105 is opened in a circular array on the top wall of the base 101, and a fixed screw 106 is rotatably clamped in the fixed through hole 105, a gasket 107 is sleeved on the fixed screw 106, a passive gear 108 is provided at the bottom of the fixed screw 106, and the passive gear 108 is arranged inside the base 101, and a transmission gear ring 109 is rotatably provided at the bottom of the top wall of the base 101, and the transmission gear ring 109 is meshed with the passive gear 108.

[0033] A support rod 104 is provided on the bottom wall of the base 101, and a driving motor 110 is provided on the top of the support rod 104. A driving gear 111 is provided at the output end of the driving motor 110. The driving gear 111 is meshed with a transmission gear ring 109. When the driving motor 110 drives the driving gear 111 to rotate, the driving gear 111 drives the transmission gear ring 109 to drive the passive gear 108 to rotate, thereby rotating the fixed screw 106.

[0034] A water supply pipe 112 is provided through the side wall of the base 101 . The water supply pipe 112 is communicated with the water tank 102 . The water supply pipe 112 is used for connecting an external water supply device.

[0035] The test mold 2 includes a sleeve 201, a tube edge 202 and a second sealing groove 204. The tube edge 202 is arranged at the bottom of the sleeve 201, and the second sealing groove 204 is arranged at the bottom of the tube edge 202. A circular array of screw holes 203 are opened on the tube edge 202. The screw holes 203 are threadedly engaged with the fixing screw 106. The second sealing groove 204 is arranged directly above the first sealing groove 103.

[0036] A rubber ring 5 is provided between the sealing groove 103 and the sealing groove 204 .

[0037] A rubber ring 303 is sleeved on the outer side of the concrete pile 301 , and the diameter of the test hole 302 is slightly larger than the diameter of the base 114 and smaller than the diameter of the center platform 113 .

[0038] When in use, firstly, a test hole 302 is drilled on the concrete pile 301 by an external drilling device, and after the rubber ring 303 is sequentially sleeved on the outside of the concrete pile 301, the demonstration concrete 3 is pressed into the test mold 2, and the rubber ring 15 is placed on the sealing groove 103, and then the test mold 2 is placed on the operating table 1, and the screw hole 203 is aligned with the fixed screw 106, and then the driving motor 110 is started, and the active gear 111 drives the transmission gear ring 109 to drive the passive gear 108 to rotate, and after the fixed screw 106 rotates, the test mold 2 is automatically pressed downward through the screw hole 203. After pressing, the rubber ring 15 is sealed between the sealing groove 103 and the sealing groove 204, and the rubber ring 303 is sealed between the concrete pile 301 and the sleeve 2 01, the inner wall is sealed, and after the test mold 2 and the demonstration concrete 3 are installed, the air pump 118 is started, and the air pump 118 blows the gas upward through the air hole 116 to clean the dust remaining in the test hole 302, and then the inner layer detection mechanism 4 is inserted from the test hole 302, and the air pipe 403 is aligned with the air hole 116, and the inner layer detection mechanism 4 is pressed down, and the air pipe 403 is inserted into the air hole 116, and the buckle 117 is inserted into the card slot 404 to fix the inner layer detection mechanism 4, and then the air pump 118 is started again. After the gas enters the sealing airbag 402, the sealing airbag 402 expands outward to block the inner wall of the test hole 302, so that the path of water penetration from the bottom of the concrete pile 301 to the top is the same as that of the ordinary test block, preventing water from penetrating from the test hole 3 in advance. 02 inner wall seepage, then use external water supply equipment to pump water into the water tank 102 to increase pressure, start the anti-seepage performance test, after reaching the standard pressurization time, first observe the top surface of the concrete pile 301, if there is water seepage on the top surface of the concrete pile 301, it means that the anti-seepage performance test under the current water pressure has not been passed, if after reaching the standard pressurization time, there is no water seepage on the top surface of the concrete pile 301, then rotate the test cylinder through the handle 407, the slider 410 is misaligned with the water inlet hole 405, the detection chamber 408 is connected to the inner side of the test hole 302 through the filter hole 409, the water inlet hole 405, and then continue to pressurize, the water that penetrates upward from the bottom of the concrete pile 301 will pass through the filter hole 409 without the slider 410 blocking the water inlet hole 405. 9 enters the test chamber through the water inlet hole 405. The water-absorbent resin particles in the test chamber will expand after absorbing the water that has infiltrated into the test chamber. After waiting for a period of time, the detection cylinder 406 is pulled out, and the test cylinder is slightly shaken to make the water-absorbent resin particles flat. The expansion of the water-absorbent resin particles in each detection chamber 408 is observed and compared with the situation before the water-absorbent resin particles absorb water, which can intuitively reflect the internal situation of the concrete. Multiple groups of detection chambers 408 are set layer by layer to detect the water seepage of different layers of the concrete pile 301. The larger the volume of the expanded water-absorbent resin particles in the detection chamber 408, the more water infiltrates the concrete pile 301 in the current layer. Then the current experimental data is recorded to complete the concrete anti-seepage performance test;When the test mold 2 needs to be removed, the driving motor 110 only needs to be reversed, and the test mold 2 will rise upward under the action of the fixing screw 106, and the test mold 2 can be removed when it rises to the highest point. ;

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A high performance concrete anti-permeability testing device, characterized in that: The invention comprises an operating table (1), a test mold (2), demonstration concrete (3) and an inner layer detection mechanism (4), wherein the test mold (2) is arranged above the operating table (1), the demonstration concrete (3) is arranged inside the test mold (2), the demonstration concrete (3) comprises a concrete pile (301), a test hole (302) is provided through the center of the concrete pile (301), the inner layer detection mechanism (4) is arranged inside the test hole (302), and the operating table (1) comprises a base (101), the base (101) is hollow inside, and a water tank (102) and a test hole (302) are provided on the top of the base (101). A sealing groove (103), wherein the sealing groove (103) is arranged outside the water tank (102), a center platform (113) is arranged at the center of the water tank (102), a base platform (114) and a second rubber ring (115) are arranged on the top wall of the center platform (113), the second rubber ring (115) is arranged on the outside of the base platform (114), a buckle (117) is arranged on the top of the base platform (114), air holes (116) are arranged in a circular array on the top wall of the base platform (114), and an air pump (118) is arranged below the top wall of the base (101), and the air pump (118) is communicated with the air holes (116); The inner layer detection mechanism (4) comprises a sealing cylinder (401) and a detection cylinder (406), wherein the detection cylinder (406) is arranged inside the sealing cylinder (401), the sealing cylinder (401) is a cylindrical structure with an opening at the top, a sealing airbag (402) is arranged on the side wall of the sealing cylinder (401), a clamping groove (404) is opened on the bottom wall of the sealing cylinder (401), air tubes (403) are arranged in a circular array on the bottom wall of the sealing cylinder (401), the air tubes (403) are communicated with the sealing airbag (402), and water inlet holes (405) are arranged in a linear array on the side wall of the sealing cylinder (401), and the water inlet holes (405) respectively penetrate the cylinder wall of the sealing cylinder (401) and the sealing airbag (402); The detection tube (406) is a cylindrical structure with an opening at the bottom. The outer wall of the detection tube (406) is fitted with the inner wall of the sealing tube (401). A handle (407) is provided on the top of the detection tube (406). A detection chamber (408) is provided in a linear array inside the detection tube (406). Water-absorbing resin particles that swell when exposed to water are quantitatively provided inside the detection chamber (408). A filter hole (409) is provided on the side wall of the detection chamber (408). A sliding buckle (410) is provided on the outer wall of the detection chamber (408). The sliding buckle (410) is fitted with the inner wall of the water inlet hole (405). The buckle (117) is fitted with the slot (404). The air pipe (403) is fitted with the air hole (116).

2. A high performance concrete anti-permeability testing device according to claim 1, characterized in that: A circumferential array of fixing through holes (105) is provided on the top wall of the base (101); a fixing screw (106) is rotatably mounted in the fixing through hole (105); a passive gear (108) is disposed at the bottom of the fixing screw (106); the passive gear (108) is disposed inside the base (101); a transmission gear ring (109) is rotatably mounted on the bottom of the top wall of the base (101); the transmission gear ring (109) is meshed with the passive gear (108).

3. A high performance concrete anti-permeability testing device according to claim 2, characterized in that: A support rod (104) is provided on the bottom wall of the base (101), a driving motor (110) is provided on the top of the support rod (104), a driving gear (111) is provided at the output end of the driving motor (110), and the driving gear (111) is meshed with a transmission gear ring (109).

4. A high performance concrete anti-permeability testing device according to claim 3, characterized in that: A water supply pipe (112) is provided through the side wall of the base (101), and the water supply pipe (112) is in communication with the water tank (102).

5. A high performance concrete anti-permeability testing device according to claim 4, characterized in that: The test mold (2) comprises a sleeve (201), a tube edge (202) and a second sealing groove (204); the tube edge (202) is arranged at the bottom of the sleeve (201); the second sealing groove (204) is arranged at the bottom of the tube edge (202); a circumferential array of screw holes (203) is provided on the tube edge (202); the screw holes (203) are threadedly engaged with a fixing screw (106); and the second sealing groove (204) is arranged directly above the first sealing groove (103).

6. A high performance concrete anti-permeability testing device according to claim 5, characterized in that: A rubber ring 1 (5) is provided between the sealing groove 1 (103) and the sealing groove 2 (204).

7. A high performance concrete anti-permeability testing device according to claim 6, characterized in that: The outer side of the concrete pile (301) is sleeved with a rubber ring three (303).

8. A high performance concrete anti-permeability testing device according to claim 7, characterized in that: A gasket (107) is sleeved on the fixing screw rod (106).

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