A permeable concrete permeability testing device

Abstract

The present invention discloses a water permeability detection device for permeable concrete, which belongs to the field of concrete water permeability detection. The water permeability detection device for permeable concrete, through the arrangement of a water-collecting image-changing plate, a color tube and an imaging layer, cooperates with the effect of a water-collecting string to effectively guide the seeping water into a plurality of color tubes during water permeability detection, so that the lower end of the color tube gradually undergoes color hydrolysis, and gradually drips to the imaging layer under the action of the collected water, so that the imaging layer undergoes color change, and the process is recorded by a camera at the bottom, so as to determine the color change process and color change time of the imaging layer. Compared with the existing technology, the water permeability of the concrete is converted into the color change on the imaging layer, which is intuitive and clear, and can greatly reduce the error of the water permeability detection result. In addition, according to the time interval of color change of each point on the imaging layer, the water permeability uniformity of the permeable concrete can also be effectively measured, thereby further improving the detection effect.

Description

Technical Field

[0001] The present invention relates to the field of concrete water permeability detection, and more particularly to a water permeability detection device for permeable concrete. Background Art

[0002] Permeable concrete, also known as porous concrete, sandless concrete, or permeable flooring, is a porous, lightweight concrete made from aggregate, cement, a reinforcing agent, and water. It contains no fine aggregate. Permeable concrete consists of a thin layer of cement slurry coated on the surface of coarse aggregate, forming a honeycomb structure with evenly distributed pores. This makes it breathable, water-permeable, and lightweight.

[0003] While meeting the strength requirements, permeable concrete also needs to maintain a certain amount of through pores to meet the permeability requirements. In the existing technology, when permeable concrete samples are tested for permeability, the difference in the changes of concrete before and after water permeation is relatively small. As a result, when water just penetrates from the upper surface to the lower surface, the phenomenon is not obvious and difficult to detect in time, resulting in a certain error in the permeability test results. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide a water permeability detection device for permeable concrete. By setting up a water-gathering image-changing plate, a color tube and a developing layer, when conducting permeability detection, the water-gathering string is used to effectively guide the seeping water into a plurality of color tubes, so that the lower end of the color tube gradually undergoes color hydrolysis, and under the action of the gathered water, it gradually drips to the developing layer, causing the color of the developing layer to change. The process is recorded by a camera at the bottom, so as to determine the color change process and color change time of the developing layer. Compared with the existing technology, the water permeability of the concrete is converted into the color change on the developing layer, which is intuitive and clear, and can greatly reduce the error of the water permeability detection result. In addition, according to the time interval of color change of each point on the developing layer, the water permeability uniformity of the permeable concrete can also be effectively measured, further improving the detection effect.

[0006] Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A water permeability detection device for permeable concrete includes a detection box, a plurality of evenly distributed legs are fixedly connected to the lower end of the detection box, a bottom plate is fixedly connected between the plurality of legs, a plurality of cameras are installed on the bottom plate, the inner wall of the detection box is sequentially clamped with a detection platform, a water collecting and image changing plate and an imaging layer from top to bottom, a plurality of evenly distributed color tubes are fixedly connected to the lower end of the water collecting and image changing plate, the water collecting and image changing plate includes an outer frame and an inner water passing plate fixedly connected to the inner wall of the outer frame, a plurality of pairs of water passing half holes are drilled on the inner water passing plate corresponding to the plurality of color tubes, the color tubes are connected to the outer frame, a water collecting string is provided above the color tubes, and the upper end of the water collecting string passes through the corresponding water passing half holes.

[0009] Furthermore, a stepped limiting ring groove is carved on the testing platform. During testing, the permeable concrete slab is placed on the stepped limiting ring groove, and an annular sealing groove is formed between the four sides of the permeable concrete slab and the stepped limiting ring groove. Before testing, glass glue is filled in the sealing groove.

[0010] Furthermore, the lower end of the detection box is a transparent structure, the imaging layer is made of a flexible water-absorbing material, and the imaging layer is in a stretched state.

[0011] Furthermore, the lower end of the color tube does not contact the imaging layer, and the distance between the lower end of the color tube and the imaging layer does not exceed 1 cm.

[0012] Furthermore, the water collecting string includes a positioning main rod fixed to the inner water plate between the two water passing half holes and water guide half feathers distributed in a circular array with the positioning main rod as the center, and the water guide half feathers pass through the water passing half holes.

[0013] Furthermore, the water-guiding half-feather includes an inclined bottom rod and a plurality of water-guiding vertical rods evenly fixed on the upper end of the inclined bottom rod, and the connection points between the inclined bottom rod and the plurality of water-guiding vertical rods are all located below the outer frame.

[0014] Furthermore, the upper ends of the plurality of water-guiding vertical rods are flush with each other and have the same height as the bottom of the limiting ring groove. The lower end of the inclined bottom rod is fixed to the positioning main rod, and the angle formed with the positioning main rod is 20-45°.

[0015] Furthermore, a plurality of water-conducting convex shells are fixedly connected to the outer end of the lower portion of the color tube, a color inner ball is placed at the bottom of the color tube, and the lower end of the color inner ball extends to the bottom of the color tube.

[0016] Furthermore, the outstanding inner sphere is an ellipsoid with multiple layers of water-soluble pigments coated on its surface. The transverse cross-sections of the ellipsoid are all circular, and the diameter of the largest transverse cross-section is larger than the bottom diameter of the outstanding inner sphere.

[0017] Furthermore, the colors of the multiple layers of water-soluble pigments are different, and the colors are contrasting with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the water-collecting image-changing plate of the present invention when viewed from above;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the water-collecting image-changing plate of the present invention when viewed from above;

[0022] Figure 5 It is a schematic diagram of the exploded structure of the water-collecting image-changing plate and the water-collecting string part of the present invention;

[0023] Figure 6 It is a schematic cross-sectional structural diagram of the water-collecting image-changing plate and the water-collecting string portion of the present invention;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the water-collecting string of the present invention;

[0025] Figure 8 Schematic diagram of the three-dimensional structure of the bottom of the color cylinder of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the detection platform of the present invention when in use;

[0027] Figure 10 Schematic diagram of the changing structure of the imaging layer during detection of the present invention.

[0028] Description of the numbers in the figure:

[0029] 1. Inspection box, 2. Bottom plate, 3. Camera, 4. Inspection table, 5. Water-collecting image-changing plate, 51. Outer frame, 52. Inner water-passing plate, 53. Water-passing half hole, 6. Imaging layer, 7. Color tube, 71. Color inner ball, 72. Water-guiding convex shell, 8. Water-collecting string, 81. Positioning main rod, 82. Water-guiding half feather. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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, not all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances. Example

[0033] See also Figure 1-2 A water permeability testing device for permeable concrete includes a testing box 1, a plurality of evenly distributed legs are fixedly connected to the lower end of the testing box 1, a bottom plate 2 is fixedly connected between the legs, a plurality of cameras 3 are mounted on the bottom plate 2, and a testing table 4, a water collecting image exchange plate 5 and an image display layer 6 are sequentially connected to the inner wall of the testing box 1 from top to bottom. Figure 3 The lower end of the water-collecting image-changing plate 5 is fixedly connected to a plurality of evenly distributed color tubes 7. The camera 3 can record the image information of the color change on the imaging layer 6, and convert the permeability of the permeable concrete into the color change phenomenon on the imaging layer 6. Compared with the existing technology, it effectively improves the visibility of the phenomenon change, has higher detection accuracy, and effectively reduces the error of the detection result.

[0034] See also Figure 4-5 In the figure, a represents a through hole. The water-collecting image-changing plate 5 includes an outer frame 51 and an inner water-passing plate 52 fixedly connected to the inner wall of the outer frame 51. The inner water-passing plate 52 is provided with a plurality of pairs of water-passing half holes 53 corresponding to the plurality of color tubes 7. The lower end of the outer frame 51 is provided with a plurality of through holes corresponding to the plurality of color tubes 7. The color tubes 7 are connected to the outer frame 51. A water-collecting string 8 is provided above the color tubes 7. Figure 6 The upper end of the water collecting string 8 passes through the corresponding water-passing half hole 53. The water collecting string 8 can effectively guide the water seeping out from the bottom of the concrete sample downward and gather it to the color tube 7, causing the water to change color. When it drips onto the imaging layer 6, the imaging layer 6 will show an obvious color change, thereby enabling the water seepage phenomenon to be captured in time. Compared with the existing technology, the accuracy of the detection results is effectively improved.

[0035] The lower end of the detection box 1 is a transparent structure, the imaging layer 6 is made of a flexible water-absorbing material, and the imaging layer 6 is in a stretched state, so that the multiple cameras 3 at the bottom can record and capture the color changes on the imaging layer 6 through the bottom of the detection box 1.

[0036] The lower end of the color tube 7 does not contact the imaging layer 6, so that the imaging layer 6 is not likely to change color prematurely due to contact with the color tube 7, thereby effectively ensuring the accuracy of the test results. In addition, the distance between the lower end of the color tube 7 and the imaging layer 6 does not exceed 1 cm, so that the path of water droplets falling at the color tube 7 is short, and obvious water droplet splashing is unlikely to occur. This effectively ensures that when water just penetrates through the concrete sample plate, the local color change range on the imaging layer 6 corresponding to the color tube 7 is not too large, thereby reducing the impact on the test results of water permeability uniformity.

[0037] See also Figure 6-7 , the water collecting string 8 includes a positioning main rod 81 fixed to the inner water plate 52 between the two water half holes 53 and a water guide half feather 82 distributed in a ring array with the positioning main rod 81 as the center. The water guide half feather 82 passes through the water half hole 53. The water guide half feather 82 includes an inclined bottom rod and a plurality of water guide vertical rods evenly fixed on the upper end of the inclined bottom rod. The connection points of the inclined bottom rod and the plurality of water guide vertical rods are all located below the outer frame 51. The lower end of the positioning main rod 81 passes through the through hole and extends to the inside of the color tube 7. The upper ends of the plurality of water guide vertical rods are flush with each other and are consistent in height with the bottom of the limiting ring groove, so that the concrete test When the sample is placed on the test table 4, the upper end of the water guide vertical rod just contacts the lower surface of the concrete sample plate, which is convenient for timely guiding the seeping water to the corresponding color tube 7 for collection, so that the water that just passes through the lower end of the color tube 7 changes color. When it drips on the imaging layer 6, the imaging layer 6 changes color. The lower end of the inclined bottom rod is fixed to the positioning main rod 81, and the angle formed with the positioning main rod 81 is 20-45°. The angle is too large, resulting in an excessively large angle at the connection between the water guide vertical rod and the inclined bottom rod. Part of the water is easy to drip directly under the action of gravity, and it is difficult to slide down along the inclined bottom rod to the color tube 7 for collection.

[0038] See also Figure 8, multiple water-conducting convex shells 72 are fixedly connected to the outer end of the lower part of the color tube 7, and a color inner ball 71 is placed at the bottom of the color tube 7. The lower end of the color inner ball 71 extends to the bottom of the color tube 7. The color inner ball 71 is an ellipsoid with multiple layers of water-soluble pigments wrapped on the surface. After water gathers in the color tube 7, the multiple layers of water-soluble pigments on the surface of the ellipsoid are gradually hydrolyzed, causing the water passing through this place to change color, making the water seepage phenomenon more obvious, and the detection accuracy is higher. The transverse cross-section of the ellipsoid is circular, and the diameter of the largest transverse cross-section is larger than the bottom diameter of the color inner ball 71. The colors of the multiple layers of water-soluble pigments are different, and each color is a contrasting color. When the water permeability is poor, as the water seepage time increases, the image layer 6 corresponding to the larger part has obvious color differences, so that the staff can roughly judge the water permeability uniformity directly visually.

[0039] See also Figure 9 In the figure, c represents the permeable concrete sample to be tested, d represents the filled glass glue layer, and a stepped limit ring groove is cut on the test platform 4. During the test, the permeable concrete board is placed on the stepped limit ring groove, and an annular sealing groove is formed between the four sides of the permeable concrete board and the stepped limit ring groove. Before the test, the glass glue is filled in the sealing groove, thereby effectively ensuring the sealing between the test platform 4 and the edge of the concrete sample, making it difficult for water to seep into the environment, and making it difficult for the imaging layer 6 to change color prematurely due to water leakage, thereby effectively ensuring the accuracy of the test results. After the glass glue is dried and solidified, water is injected into the top of the test box 1 and allowed to stand. The image information of the color change of the imaging layer 6 is detected by the camera 3, thereby timely recording and obtaining the time and speed of water passing through the concrete sample and the uniformity of water seepage.

[0040] See also Figure 1 and Figure 10 In the figure, b represents the mark of color change. Through the arrangement of the water-collecting image-changing plate 5, the color tube 7 and the imaging layer 6, when conducting water permeability detection, in conjunction with the function of the water-collecting string 8, the seeping water is effectively guided and concentrated into the multiple color tubes 7, causing the lower end of the color tube 7 to gradually undergo color hydrolysis, and under the action of the collected water, it gradually drips to the imaging layer 6, causing the imaging layer 6 to change color. The camera 3 at the bottom records this process, thereby determining the color change process and color change time of the imaging layer 6. Compared with the existing technology, the conversion of concrete water permeability into color change on the imaging layer 6 is intuitive and clear, which can greatly reduce the error of the water permeability detection result. In addition, according to the time interval of color change of each point on the imaging layer 6, the water permeability uniformity of the permeable concrete can also be effectively measured, further improving the detection effect.

[0041] The above description is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved conception of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A permeable concrete permeability testing device, comprising a testing box (1), wherein a plurality of evenly distributed legs are fixedly connected to the lower end of the testing box (1), characterized in that: A bottom plate (2) is fixedly connected between the plurality of legs, and a plurality of cameras (3) are installed on the bottom plate (2). The inner wall of the detection box (1) is sequentially connected with a detection table (4), a water-collecting image-changing plate (5) and an imaging layer (6) from top to bottom. The lower end of the water-collecting image-changing plate (5) is fixedly connected with a plurality of evenly distributed color tubes (7). The water-collecting image-changing plate (5) comprises an outer frame (51) and an inner water-passing plate (52) fixedly connected to the inner wall of the outer frame (51). The inner water-passing plate (52) is provided with a plurality of pairs of water-passing half-holes (53) corresponding to the plurality of color tubes (7). The lower end of the outer frame (51) is provided with a plurality of through-holes corresponding to the plurality of color tubes (7). The color tubes (7) are connected to the outer frame (51). A water-collecting string (8) is provided above the color tubes (7), and the upper end of the water-collecting string (8) passes through the corresponding water-passing half-holes (53). The testing table (4) is provided with a stepped limiting ring groove. During testing, the permeable concrete slab is placed on the stepped limiting ring groove, and an annular sealing groove is formed between the periphery of the permeable concrete slab and the stepped limiting ring groove. Before testing, glass glue is filled in the sealing groove. A plurality of water-conducting convex shells (72) are fixedly connected to the outer end below the color tube (7), a color inner ball (71) is placed at the bottom of the color tube (7), and the lower end of the color inner ball (71) extends to the bottom of the color tube (7); The outstanding inner sphere (71) is an ellipsoid with multiple layers of water-soluble pigments coated on its surface. The transverse cross-sections of the ellipsoid are all circular, and the diameter of the largest transverse cross-section is larger than the bottom diameter of the outstanding inner sphere (71). The colors of the multiple layers of water-soluble pigments are all different, and the colors are contrasting with each other.

2. The permeable concrete permeability detection device according to claim 1, characterized in that: The lower end of the detection box (1) is a transparent structure, the imaging layer (6) is made of a flexible water-absorbing material, and the imaging layer (6) is in a stretched state.

3. The permeable concrete permeability detection device according to claim 1, characterized in that: The lower end of the color tube (7) does not contact the imaging layer (6), and the distance between the lower end of the color tube (7) and the imaging layer (6) does not exceed 1 cm.

4. The permeable concrete permeability detection device according to claim 1, characterized in that: The water collecting string (8) comprises a positioning main rod (81) fixed to the inner water passing plate (52) between the two water passing half holes (53) and water guiding half feathers (82) distributed in a ring array with the positioning main rod (81) as the center, and the water guiding half feathers (82) pass through the water passing half holes (53).

5. The permeable concrete permeability detection device according to claim 4, characterized in that: The water-guiding half-feather (82) comprises an inclined bottom rod and a plurality of water-guiding vertical rods uniformly fixed to the upper end of the inclined bottom rod, and the connection points between the inclined bottom rod and the plurality of water-guiding vertical rods are all located below the outer frame (51).

6. The permeable concrete permeability detection device according to claim 5, characterized in that: The upper ends of the plurality of water guide vertical rods are flush with each other and have the same height as the bottom of the limiting ring groove. The lower end of the inclined bottom rod is fixed to the positioning main rod (81) and the angle formed with the positioning main rod (81) is 20-45 degrees.

Images