Self-compacting shrinkage-compensating concrete strength detection device
By designing a self-contained compensation shrinkage concrete strength detection device including columnar box, support frame plate and base, the problem that traditional detection methods cannot accurately reflect the changes in concrete strength is solved, and a more accurate and efficient concrete strength detection is achieved.
Patent Information
- Application Number
- CN202520176510.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2035-01-27
AI Technical Summary
Traditional concrete strength detection methods cannot accurately reflect the strength changes of concrete in the actual construction environment, and the inspection process is cumbersome and complicated, making it difficult to meet the needs of construction quality control.
A self-contained compensation shrinkage concrete strength detection device is designed, including a columnar box, a support frame plate and a base. By setting up a movable columnar box and a multi-directional stress structure, the stress state of concrete in the actual construction environment is simulated, and the rapid disassembly and limiting components are combined to achieve rapid mold release and accurate detection.
The device can more accurately reflect the strength development of concrete, reduce the impact of external factors on self-contained concrete, improve the accuracy and reliability of test results, simplify the inspection process, improve construction efficiency, and reduce the destructiveness of concrete structures.
Smart Images
Figure CN222599344U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete measurement, in particular to a self-compacting shrinkage compensating concrete strength detection device. Background Art
[0002] Self-compacting shrinkage compensating concrete is a high-performance concrete material with excellent fluidity, filling and stability. It is widely used in the field of repairing cracks and settlements in concrete foundations, as well as in engineering projects with higher construction quality requirements, such as bridges, tunnels and high-rise buildings. The key features of self-compacting shrinkage compensating concrete are its good self-compactness and effective compensation for shrinkage during the hardening process. These characteristics give it significant advantages in many engineering fields.
[0003] During the construction process, controlling the strength of concrete is an important quality control indicator. Traditional concrete strength testing methods usually include standard specimen method, rebound hammer test method, ultrasonic pulse velocity test method and core sampling test method. However, the above methods either cannot simulate the actual environment in the foundation, or the test data deviates from the actual situation, and cannot accurately reflect the actual changes in concrete strength, as well as the cumbersome and complicated process of destructive testing operations. Therefore, there is an urgent need for a simple, effective and accurate device to test the strength of concrete. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a self-compacting shrinkage compensating concrete strength detection device.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A self-compacting shrinkage compensating concrete strength detection device comprises a columnar box, a support frame plate and a base for pouring self-compacting shrinkage compensating concrete, the columnar box comprising a surrounding plate, an arc-shaped regulating plate and an elastic component, the side of the surrounding plate is provided with a cavity structure that passes through transversely, and arc-shaped regulating plates are inserted at both ends of the cavity structure, and two arc-shaped regulating plates in any one of the surrounding plates are connected by an elastic component, a cross slide is provided on the base, and the bottom of the support frame plate is slidably connected to the cross slide, the number of the support frame plates corresponds to the number of the surrounding plates, and the columnar box can be movably placed on the base, and the support frame plate is arranged around the columnar box.
[0007] Furthermore, there are four of each of the enclosures, arc-shaped regulating plates and support frame plates, and the cross-section formed by the four enclosures is a rectangular structure. In the conventional standard specimen method, the concrete sample is made into a cube or cylinder of standard size, and then compressed under a certain pressure until the sample is destroyed, and its compressive strength is measured. Therefore, the rectangular structure composed of four enclosures can ensure the stability of the columnar box, and the rectangular structure has good force uniformity and stability, which can effectively distribute the pressure generated during concrete pouring and avoid excessive or uneven local force. By forming a rectangular structure with four enclosures, not only can the self-compactness of the concrete sample be fully reflected, but also the deformation control during the concrete pouring process is guaranteed, so that it is always in a circumferential compression state, thereby making the test results more accurate.
[0008] Furthermore, the support frame plate has the same height as the enclosure plate, and a limit assembly is provided on the top of the support frame plate. The support frame plate has the same height as the enclosure plate, which facilitates the buckling and fixing of the limit assembly. When the external lifting mechanism suspends and lowers the columnar box, the limit assembly can prevent the support frame plate and the base from separating and falling.
[0009] Furthermore, the limit assembly is arranged at the top center of the support frame plate, and the rotation direction of the limit assembly is toward one side of the enclosure. Since the support frame plate and the base are an integral unit, and the support frame plate surrounds the outer side of the enclosure, when the limit assembly is turned toward the enclosure side, only the hanging part on the enclosure is pulled, and the support frame plate and the base are still connected and fixed to the enclosure without falling.
[0010] Furthermore, the arc-shaped regulating plate includes a first arc-shaped plate and a second arc-shaped plate that are detachably connected, and the first arc-shaped plate and the second arc-shaped plate have matching plug-in parts at their opposite edges. The columnar box can be quickly dismantled through the quick-release assembly between the first arc-shaped plate and the second arc-shaped plate, so that the concrete sample can be demoulded and removed.
[0011] Furthermore, the connecting end surfaces of the first arc plate and the second arc plate are also provided with mutually cooperating quick-release components, and any two corresponding quick-release components are snap-fitted and connected. When the concrete sample needs to be demoulded, the operator only needs to simply snap and unlock the quick-release components, eliminating the tedious steps of traditional screws or other connection methods, thereby improving work efficiency.
[0012] Furthermore, a hanging part for connecting an external lifting mechanism is provided on the top of the enclosure plate, which facilitates the external lifting mechanism to be suspended and connected, and is used to lift the entire columnar box to the concrete area to be repaired or take it out.
[0013] Furthermore, two hanging parts are arranged on the top of any of the enclosures, and the two hanging parts are symmetrically arranged at both ends of the top of the enclosure. The symmetrically arranged hanging parts can ensure that the two hanging parts are subjected to equal forces during the lifting process, thereby reducing the tilt or shaking caused by eccentric force and improving the stability of the entire box.
[0014] Furthermore, a slider is provided at the center of the bottom of the support frame plate, and the slider is slidably connected to the cross slide. The slider drives the support frame plate to slide freely on the cross slide, and the support frame plate and the enclosure plate form a movable whole. When the external concrete exerts an extrusion force on the columnar box, the support frame plate can be pushed to further squeeze the columnar box, so that the concrete sample in the columnar box is subjected to multi-directional force, so as to truly simulate the actual environment in the foundation.
[0015] Furthermore, the elastic components are provided in plurality and are arranged at equal intervals vertically. The elastic components can make each enclosure plate squeeze inward after being subjected to circumferential pressure, so that the concrete sample in the columnar box can obtain the actual pressure environment and effect of self-contraction in the concrete area to be repaired, so as to facilitate the next step of compressive strength test and obtain more accurate strength value.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. The utility model can simulate the multi-directional stress state of self-compacting shrinkage compensating concrete in the actual construction environment to the maximum extent by setting up a movable columnar box, can more truly reflect the strength development of concrete, reduce the influence of external factors on the shrinkage of self-compacting concrete, and thus improve the accuracy and reliability of the test results;
[0018] 2. The utility model reduces the difficulty and complexity of taking out samples, shortens the sampling time, and improves the construction efficiency by setting up independent columnar boxes and support frames;
[0019] 3. The utility model reduces the destructiveness and damage to the concrete structure. At the same time, after the columnar box is taken out, it can be quickly demoulded for strength testing, which reduces the risk of human operation during the construction process and can better adapt to different environments and requirements in practical applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the utility model;
[0021] Figure 2 It is a structural schematic diagram of a cylindrical box;
[0022] Figure 3 It is a partial cross-sectional view of the coaming;
[0023] Figure 4 It is a schematic diagram of the structure of the base;
[0024] Figure identification: 1-support frame plate, 2-base, 3-enclosure, 4-arc-shaped control plate, 401-first arc-shaped plate, 402-second arc-shaped plate, 5-elastic component, 6-cavity structure, 7-cross slide, 8-limiting component, 9-quick release component, 10-hanging part. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.
[0026] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model discloses a self-compacting shrinkage compensating concrete strength detection device, including a columnar box for pouring self-compacting shrinkage compensating concrete, a support frame plate 1 and a base 2, the columnar box including a surrounding plate 3, an arc-shaped regulating plate 4 and an elastic component 5, the side of the surrounding plate 3 is provided with a transversely penetrating cavity structure 6, both ends of the cavity structure 6 are inserted with an arc-shaped regulating plate 4, any two arc-shaped regulating plates 4 in the surrounding plate 3 are connected by an elastic component 5, a cross slide 7 is provided on the base 2, the bottom of the support frame plate 1 is slidably connected to the cross slide 7, the number of the support frame plates 1 corresponds to the number of the surrounding plates 3, the columnar box can be movably placed on the base 2, and the support frame plate 1 is arranged around the columnar box.
[0027] There are four of each of the enclosure 3, the arc-shaped regulating plate 4 and the support frame plate 1, and the cross-section formed by the four enclosures 3 is a rectangular structure. Specifically, in the conventional standard specimen method, the concrete sample is made into a cube or cylinder of standard size, and then compressed under a certain pressure until the sample is destroyed, and its compressive strength is measured. Therefore, the rectangular structure composed of the four enclosures 3 can ensure the stability of the columnar box, and the rectangular structure has good force uniformity and stability, and can effectively distribute the pressure generated during concrete pouring to avoid excessive or uneven local force. By forming the four enclosures 3 into a rectangular structure, not only can the self-compactness of the concrete sample be fully reflected, but also the deformation control during the concrete pouring process is guaranteed, so that it is always in a circumferential compression state, thereby making the test results more accurate.
[0028] The support frame plate 1 has the same height as the enclosure plate 3, and a limit assembly 8 is provided on the top of the support frame plate 1. Specifically, the support frame plate 1 has the same height as the enclosure plate 3, which facilitates the buckling and fixing of the limit assembly 8. When the external lifting mechanism suspends and lowers the columnar box, the limit assembly 8 can prevent the support frame plate 1 and the base 2 from separating and falling.
[0029] The limit assembly 8 is arranged at the top center of the support frame plate 1, and the rotation direction of the limit assembly 8 is toward one side of the enclosure 3. Specifically, since the support frame plate 1 and the base 2 are an integral unit, and the support frame plate 1 surrounds the outer side of the enclosure 3, when the limit assembly 8 is turned toward the enclosure 3, only the hanging portion 10 on the enclosure 3 is lifted, the support frame plate 1 and the base 2 are still connected and fixed to the enclosure 3, and will not fall off.
[0030] The arc-shaped regulating plate 4 includes a first arc-shaped plate 401 and a second arc-shaped plate 402 that are detachably connected, and an adaptable plug-in portion is provided at the opposite edges of the first arc-shaped plate 401 and the second arc-shaped plate 402. Specifically, the columnar box can be quickly dismantled through the quick-release assembly 9 between the first arc-shaped plate 401 and the second arc-shaped plate 402, so as to facilitate demoulding and taking out the concrete sample.
[0031] The connecting end surfaces of the first arc plate 401 and the second arc plate 402 are also provided with mutually matching quick-release components 9, and any two corresponding quick-release components 9 are snap-fitted and connected. Specifically, when the concrete sample needs to be demoulded, the operator only needs to simply snap and unlock the quick-release components 9, eliminating the cumbersome steps of traditional screws or other connection methods, thereby improving work efficiency.
[0032] The top of the enclosure 3 is provided with a hanging portion 10 for connecting an external lifting mechanism. Specifically, the hanging portion 10 facilitates the external lifting mechanism to be suspended and connected, and is used to lift the entire columnar box to the concrete area to be repaired or take it out.
[0033] Two hanging parts 10 are arranged on the top of any of the enclosures 3, and the two hanging parts 10 are symmetrically arranged at both ends of the top of the enclosure 3. Specifically, the symmetrically arranged hanging parts 10 can ensure that the two hanging parts 10 are subjected to equal forces during the lifting process, thereby reducing the tilt or shaking caused by eccentric force and improving the stability of the entire box.
[0034] A slider is provided at the center of the bottom of the support frame plate 1, and the slider is slidably connected with the cross slide groove 7. Specifically, the slider drives the support frame plate 1 to slide freely on the cross slide groove 7, and the support frame plate 1 and the enclosure 3 form a movable whole. When the external concrete exerts an extrusion force on the columnar box, the support frame plate 1 can be pushed to squeeze the columnar box, so that the concrete sample in the columnar box is subjected to multi-directional force, so as to truly simulate the actual environment in the foundation.
[0035] There are a plurality of elastic components 5, which are arranged at equal intervals vertically. Specifically, the elastic components 5 can make each enclosure 3 squeeze inward after being subjected to circumferential pressure, so that the concrete sample in the columnar box can obtain the actual pressure environment and effect of self-contraction in the concrete area to be repaired, so as to facilitate the next step of compressive strength testing and obtain more accurate strength values.
[0036] Embodiment 2: Based on embodiment 1, this embodiment proposes a specific working principle of a self-compacting shrinkage compensating concrete strength detection device.
[0037] The specific implementation principle process is as follows:
[0038] In the conventional standard specimen method, the concrete sample is made into a cube or cylinder of standard size, usually with a diameter of 100 mm and a height of 200 mm. In the present application, the width of the enclosure 3 is 100 mm and the height is 200 mm. When repairing areas with cracks or settlements in the concrete foundation, the operation of placing is to move the four support frame plates 1 to the four ends of the base 2 respectively, and place the columnar box on the base 2 and between the four support frame plates 1. The four enclosures 3 are fixed respectively by the limiting components 8 on the support frame plates 1, and after fixation, they are pulled by the hook of the external lifting mechanism. When the remaining height of 200 mm is filled, the columnar box is placed as a whole in the concrete area to be repaired.
[0039] Before pouring concrete into the columnar box, a thin layer of mineral oil or other isolating agent that does not react with concrete is evenly applied on the inner wall of the columnar box, that is, the inner wall of the enclosure 3. Then, the concrete mixture is randomly sampled as the raw material of the test piece, usually from 1 / 4 to 3 / 4 of the mixer truck to ensure the representativeness of the sample. When the concrete sample is close to initial setting, the surface of the test piece is smoothed with a spatula. In this process, the concrete sample is subjected to circumferential pressure, and the movable enclosure 3 can cause extrusion or movement deformation of the concrete sample to obtain the accurate autogenous shrinkage of the self-compacting concrete.
[0040] After the concrete sample is formed, it is removed and demolded within 24 hours. When removing, open the limit assembly 8 on the four support frame plates 1, and lift and remove the columnar box through the lifting mechanism. Since the bottom and sides of the lifting mechanism are surrounded by the support frame plates 1 and the base 2, which are solidified with the concrete, and the contact area between the columnar box and the external concrete is small, it is easy to remove and easier to separate and remove. After removing the columnar box, fill the original support frame plate 1 with concrete for repair. Use the quick-release assembly 9 on the arc-shaped control plate 4 to quickly dismantle the columnar box, take out the concrete sample, and place the concrete sample on the pressure testing machine, applying gradually increasing axial pressure until the concrete sample is destroyed. Record the maximum pressure at the time of destruction and calculate the compressive strength of the concrete sample.
[0041] This application scheme simulates the actual environment of the self-shrinkage of the self-compacting compensating shrinkage concrete in the concrete area to be repaired to the greatest extent, reduces the influence of external air and moisture on the self-shrinkage of the self-compacting compensating shrinkage concrete, and makes the interior of the columnar box always in a multi-directional compression state, so as to accurately obtain the self-shrinkage amount of the self-compacting compensating shrinkage concrete, and then achieve accurate strength test results.
[0042] Of course, the present invention may have many other implementation modes. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.
Claims
1. A self-compacting shrinkage compensating concrete strength detection device, characterized in that: The invention comprises a columnar box for pouring self-compacting shrinkage compensating concrete, a support frame plate (1) and a base (2), wherein the columnar box comprises a panel (3), an arc-shaped regulating plate (4) and an elastic component (5), a side of the panel (3) is provided with a cavity structure (6) which passes through transversely, and arc-shaped regulating plates (4) are inserted at both ends of the cavity structure (6), and two arc-shaped regulating plates (4) in any one of the panels (3) are connected via an elastic component (5), a cross slide (7) is provided on the base (2), and the bottom of the support frame plate (1) is slidably connected to the cross slide (7), the number of the support frame plates (1) corresponds to the number of the panel (3), and the columnar box can be movably placed on the base (2), and the support frame plate (1) is arranged around the columnar box.
2. A self-compacting shrinkage compensating concrete strength detection device according to claim 1, characterized in that: There are four of each of the enclosure plate (3), the arc-shaped regulating plate (4) and the supporting frame plate (1), and the cross-section formed by the four enclosure plates (3) is a rectangular structure.
3. A self-compacting shrinkage compensating concrete strength detection device according to claim 1, characterized in that: The support frame plate (1) has the same height as the enclosure plate (3), and a limit position component (8) is provided on the top of the support frame plate (1).
4. A self-compacting shrinkage compensating concrete strength detection device according to claim 3, characterized in that: The limiting assembly (8) is arranged at the top center of the support frame plate (1), and the rotation direction of the limiting assembly (8) is toward one side of the enclosure plate (3).
5. The self-compacting shrinkage compensating concrete strength detection device according to claim 1, characterized in that: The arc-shaped regulating plate (4) comprises a first arc-shaped plate (401) and a second arc-shaped plate (402) which are detachably connected, and matching plug-in portions are provided on opposite edges of the first arc-shaped plate (401) and the second arc-shaped plate (402).
6. A self-compacting shrinkage compensating concrete strength detection device according to claim 5, characterized in that: The connecting end surfaces of the first arc-shaped plate (401) and the second arc-shaped plate (402) are also provided with mutually matching quick-release components (9), and any two corresponding quick-release components (9) are snap-fitted and connected.
7. A self-compacting shrinkage compensating concrete strength detection device according to claim 1, characterized in that: A hanging portion (10) for connecting to an external lifting mechanism is provided on the top of the enclosure plate (3).
8. A self-compacting shrinkage compensating concrete strength detection device according to claim 7, characterized in that: Two hanging portions (10) are arranged on the top of any of the enclosure panels (3), and the two hanging portions (10) are symmetrically arranged at two ends of the top of the enclosure panel (3).
9. The self-compacting shrinkage compensating concrete strength detection device according to claim 1, characterized in that: A sliding block is provided at the center of the bottom of the support frame plate (1), and the sliding block is slidably connected to the cross sliding groove (7).
10. The self-compacting shrinkage compensating concrete strength detection device according to claim 1, characterized in that: A plurality of the elastic components (5) are provided, and the plurality of the elastic components (5) are arranged at equal intervals vertically.