Device for detecting filling property of grouting material at bottom of assembly type track plate

Abstract

The utility model discloses a device for detecting the filling property of a grouting material at the bottom of an assembly type track plate, which comprises a two-way deformation detection component, a limiting lifting device, a homogeneity inspection component, a moisturizing and curing component, a lateral flow filling detection component and a seepage component, and is characterized in that a moisturizing and curing film realizes the effective curing of the grouting material without water replenishing; the limiting lifting device and the two-way deformation measuring assembly can accurately detect the expansion and shrinkage performance of the grouting material; the test mold filled with the grouting material is transparent organic glass, so that the uniformity of the internal material can be observed; the lateral flow filling detection assembly mounted on the side wall of the test mold adopts an L-shaped structure and is used for testing and evaluating the flow filling condition; and the seepage and consolidation assembly is used for evaluating the seepage and consolidation effect of the grouting material on the loose part of the base layer. The device can more comprehensively detect the filling property of the prefabricated track plate bottom grouting material, and is also suitable for detecting and evaluating the filling property of high-fluidity materials such as grouting materials, grouting materials, UHPC (Ultra High Performance Concrete) and thin layer repair materials.

Description

Technical Field

[0001] The utility model relates to the field of special building material detection, and specifically discloses a device for detecting the filling property of grouting materials at the bottom of an assembled field road slab. Background Art

[0002] Grouting material is a special engineering material widely used in large equipment foundations, bridge support parts, steel sleeves, prefabricated component splicing and other scenes. It plays the role of connection and support. It has technical characteristics such as large fluidity, high strength, and micro expansion. Filling is an important property of grouting materials. At present, it is mainly reflected by the vertical expansion rate index. The detection method adopts the "Appendix C Determination of Vertical Expansion Rate of Expansive Mortar for Grouting" in the "Technical Specifications for the Application of Concrete Admixtures" (GB50119-2013). The measuring device is mainly composed of a test mold, a micrometer, a bracket, a glass plate, a steel pressure block, etc. It has the advantages of simple structure and easy operation, but it has the disadvantage that the reading is easily affected by external environment such as vibration. Patent document "A device for detecting the expansion rate of sleeve grouting material" (publication number CN206788077U) uses an outer container to fix the micrometer, which acts as a bracket; Patent document "A vertical expansion rate measuring instrument that is easy to adjust" (publication number CN213986479U) also improves the micrometer bracket; the vertical expansion rate measuring device in patent document "A device for measuring the vertical expansion rate of grouting material mixed with expansion fiber anti-cracking agent" (publication number CN210863733U) adds a water replenishment device, which eliminates the operation of frequently wetting the cotton thread during the measurement process, and effectively reduces the influence of the water loss and drying of the cotton thread on the vertical expansion rate value of the grouting material; Patent document "A device for measuring the vertical expansion rate of sleeve grouting material" (publication number CN206788077U) uses an outer container to fix the micrometer, which acts as a bracket; Patent ... sleeve grouting material" (publication number CN206788077U) uses an outer container to fix the micrometer, which acts as a bracket; Patent document "A device for measuring the vertical expansion rate of sleeve grouting material" (publication number CN206788077U) uses an outer container to fix the micrometer, which acts as a bracket; Patent document "A device for measuring the vertical expansion rate of sleeve grouting material" The device for measuring the vertical expansion rate of sleeve grouting material disclosed in the patent document "A device for measuring water seepage rate and vertical expansion rate of materials" (publication number CN207036837U) includes a base, a cylinder, a push connector, a smooth steel rod, a dial indicator, and a fastening screw. The dial indicator is installed on the smooth steel rod fixed to the base, and the movable displacement of the push connector is reflected by the dial indicator reading; the dial indicator of the patent document "A device for measuring the vertical expansion rate of sleeve grouting material" (publication number CN110967472A) is slidably set on the crossbeam; the patent document "Device for measuring the vertical expansion rate of cement-based grouting material" (publication number CN219590066U) replaces the glass plate with an acrylic plate, and the dial indicator measures the displacement. The use scenario of the prefabricated runway slab bottom grouting material is different from that of the existing grouting material. The prefabricated runway slab is fixed on the cement-stabilized graded crushed stone base by lifting screws. The joints of the prefabricated slabs are sealed by grouting materials. The grouting material is poured in through the feed port. It is impossible to completely achieve a flat and smooth surface in the space to be filled, such as the base surface and the bottom surface of the prefabricated slab. In addition, due to the large space, once the grouting is not full and the grouting shrinks, the load of the runway cannot be effectively transferred to the base and foundation when it is impacted by aircraft takeoff and landing. The prefabricated slab is very likely to break and be damaged. Therefore, the grouting filling is required to be extremely high. The existing grouting material deformation detection device can only detect unidirectional expansion, but cannot detect shrinkage and evaluate the uniformity of filling, and cannot evaluate the penetration and consolidation effect on the weak parts of the base. Therefore, it cannot fully reflect the filling of the grouting material to the bottom space of the prefabricated runway slab, and has limitations as a test equipment. Summary of the invention

[0003] The utility model aims to provide a device for detecting the filling property of grouting materials at the bottom of an assembled field road slab.

[0004] The purpose of the utility model is achieved as follows: an assembled field road slab bottom grouting material filling detection device is composed of a bidirectional deformation detection component, a limit lifting device, a homogeneity inspection component, a moisture retention and curing component, a lateral flow filling detection component, and a seepage component. The homogeneity inspection component is embedded and connected with the hemispherical protrusion on the bottom plate of the deformation detection component through a hemispherical groove at the bottom of the test mold, the limit sleeve of the limit lifting device is glued to the side wall of the test mold of the homogeneity inspection component, the back side of the moisture retention and curing component is attached to the concave component of the limit lifting device through double-sided tape, and the lateral flow filling detection component and the seepage component are connected to the homogeneity inspection component in the form of threaded connections. Among them: the bidirectional deformation detection component is composed of a base plate, a bracket, a clamping device, a displacement sensor, a displacement collector, and a computer. The base plate is installed with a bracket, and the clamping device is installed on the bracket. After the two ends of the limit lifting device are inserted into the limit sleeve, the groove part is directly placed in the test mold. The displacement sensor is fixed by the clamping device and connected to the table holder on the limit lifting device to realize the measurement of the expansion and contraction performance of the grouting material. The displacement sensor is connected to the displacement collector through a wire, and the displacement collector is connected to the computer through a data cable; the limit lifting device is composed of a concave component, a limit sleeve, grease, and a table holder. The limit sleeve is fixed on the test mold and poured into the limit sleeve. The table holder is welded on the concave component, and the two ends of the concave component are inserted in the grease; the moisturizing and curing component adopts a plastic film containing hydroxyl groups to realize the effective curing of the grouting material without water replenishment; the homogeneity inspection component is composed of a test mold made of transparent organic glass and a liquid level ruler with a millimeter scale The liquid level gauge is pasted on the test mold. Through the transparent test mold, it can be observed whether the internal material has uniformity problems such as water seepage and slurry seepage, and the liquid level gauge can be used to quantitatively determine the severity of water seepage and slurry seepage; the lateral flow filling detection component is composed of a horizontal pipe and a vertical pipe made of transparent material to form an L-shaped structure. The horizontal pipe is connected to the test mold through a threaded connection, and the vertical pipe has a scale, which is connected to the horizontal pipe by a threaded connection. The filling degree of the grouting material on different parts of the bottom of the prefabricated field road slab can be reflected by comparing the scale on the vertical pipe with the liquid level gauge on the test mold. Because this component is made of transparent material, the uniformity of the internal material can also be observed; the infiltration and bonding component is composed of a silicone tube and single-grained gravel, which is connected to the test mold through a threaded connection. After the grouting material enters the infiltration and bonding component, it penetrates into the single-grained gravel in the silicone tube and finally consolidates. After the grouting material is consolidated, the infiltration and bonding component is removed, the single-grained gravel is taken out, the compaction and bonding conditions are observed, and the penetration and reinforcement effect of the grouting material on the weak parts of the base layer is evaluated. The device comprehensively evaluates the filling capacity of the grouting materials at the bottom of the prefabricated road slab based on the expansion and contraction measurement results, homogeneity observation results, lateral flow effect, and seepage effect. The evaluation is more comprehensive. The device is also suitable for the detection and evaluation of the filling performance of high-fluidity materials such as grouting materials, grouting materials, UHPC, and thin layer repairs.

[0005] Compared with the prior art, the beneficial effects of the utility model are:

[0006] The device can comprehensively evaluate the filling effect of the grouting material at the bottom of the prefabricated runway slab on the space at the bottom of the slab, which helps to ensure the tight and effective connection between the prefabricated slab and the water-stabilized gravel base, ensuring that the prefabricated slab has sufficient bearing capacity and impact resistance, and achieving the stability and durability of the overall structure of the prefabricated runway. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a front elevation schematic diagram of the utility model;

[0008] Figure 2 It is a side view of the infiltration assembly;

[0009] Figure 3 This is a schematic diagram of the base plate elevation;

[0010] Figure 4 This is a schematic diagram of the bottom of the test mold.

[0011] Among them: 1. Bidirectional deformation detection component; 2. Limit lifting device; 3. Homogeneity inspection component; 4. Moisturizing and health care component; 5. Lateral flow filling detection component; 6. Seepage component; 1-1. Bottom plate; 1-2-bracket; 1-3. Clamping device; 1-4. Displacement sensor; 1-5. Displacement collector; 1-6. Computer; 1-7. Hemispherical protrusion; 2-1. Concave component; 2-2. Limit sleeve; 2-3. Grease; 2-4. Table support; 3-1. Test mold; 3-2. Liquid level gauge; 3-3. Hemispherical groove; 5-1. Horizontal tube; 5-2. Vertical tube; 6-1. Silicone tube; 6-2. Single-grade gravel. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 , Figure 4:A prefabricated field road bottom grouting material filling detection device, consisting of a bidirectional deformation detection component 1, a limit lifting device 2, a homogeneity inspection component 3, a moisturizing and curing component 4, a lateral flow filling detection component 5, and a seepage component 6, wherein: the bidirectional deformation detection component 1 consists of a base plate 1-1, a bracket 1-2, a clamping device 1-3, a displacement sensor 1-4, a displacement collector 1-5, a computer 1-6, and a hemispherical protrusion 1-7. The bracket 1-2 is connected to the base plate 1-1 through a threaded connection, the bracket 1-2 is equipped with a clamping device 1-3, the clamping device 1-3 is fixed with a displacement sensor 1-4, the displacement sensor 1-4 is connected to the displacement collector 1-5 through a wire, and the displacement collector 1-7 is connected to the base plate 1-1 through a threaded connection. -5 is connected to the computer 1-6 through a data cable, and the bottom plate 1-1 and the hemispherical protrusion 1-7 are obtained as a whole through a cutting process; the limit lifting device 2 is composed of a concave component 2-1, a limit sleeve 2-2, grease 2-3, and a table support 2-4; the homogeneity inspection component 3 is composed of a test mold 3-1, a liquid level ruler 3-2, and a hemispherical groove 3-3. The liquid level ruler 3-2 is vertically pasted on the test mold 3-1, and the hemispherical groove 3-3 is obtained by drilling and milling at the bottom center of the test mold 3-1; the hemispherical groove 3-3 at the central position of the bottom of the test mold 3-1 is embedded and connected with the hemispherical protrusion 1-7 at the central part of the bottom plate 1-1. The two have the same diameter and can be tightly fitted to achieve positioning of the homogeneity inspection component. Purpose: After the test mold 3-1 is filled with grouting material, a moisturizing and curing film 4 is laid, and both ends of the concave component 2-1 of the limit lifting device 2 are inserted into the grease 2-3 in the limit sleeve 2-2, and then directly placed on the moisturizing and curing film 4 and connected by double-sided tape. The displacement sensor 1-4 is fixed by the clamping device 1-3 and contacts with the table support 2-4 welded on the limit lifting device 2 to realize the bidirectional deformation measurement of the expansion and contraction of the grouting material; the lateral flow filling detection component 5 includes a horizontal pipe 5-1 and a vertical pipe 5-2. The horizontal pipe is connected to the test mold 3-1 through a threaded connection, and the vertical pipe 5-2 is connected to the horizontal pipe 5-1 through a threaded connection. When the grouting material is filled in the test mold 3-1, the flow is filled into the lateral flow filling detection The measuring component 5 can evaluate the lateral flow filling effect of the grouting material by comparing the scale on the vertical pipe 5-2 with the liquid level ruler 3-2. The material changes in the upper and lower parts of the grouting material in the test mold 3-1 and the lateral flow filling detection component 5 can reflect the homogeneity of the grouting material. The infiltration component 6 includes a silicone tube 6-1 and a single-grained gravel 6-2. The silicone tube 6-1 is connected to the test mold 3-1 in the form of a threaded connection. After the grouting material enters the infiltration component 6, it penetrates and finally consolidates in the single-grained gravel 6-2 in the silicone tube 6-1. After the grouting material is consolidated, the infiltration component 6 is removed, the single-grained gravel 6-2 is taken out, and the compaction and bonding conditions are observed to evaluate the penetration reinforcement effect of the grouting material on the weak parts of the base. The expansion and contraction measurement results, homogeneity observation results, lateral flow effect, and infiltration consolidation effect obtained by the device can comprehensively evaluate the filling properties of the grouting material at the bottom of the prefabricated field road slab.

[0013] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the filling property of grouting materials at the bottom of an assembled field road slab, characterized in that: The device consists of a bidirectional deformation detection component, a limit lifting device, a homogeneity inspection component, a moisturizing and health care component, a lateral flow filling detection component, and a seepage component. The homogeneity inspection component is embedded and connected with the hemispherical protrusion on the bottom plate of the deformation detection component through the hemispherical groove at the bottom of the test mold. The limit sleeve of the limit lifting device is glued to the side wall of the test mold of the homogeneity inspection component. The back side of the moisturizing and health care component is adhered to the concave component of the limit lifting device through double-sided tape. The lateral flow filling detection component and the seepage component are respectively connected to the homogeneity inspection component in the form of threaded connections.

2. The device for detecting filling properties of grouting materials at the bottom of a prefabricated field road slab according to claim 1 is characterized in that: The bidirectional deformation detection component is composed of a base plate, a bracket, a clamping device, a displacement sensor, a displacement collector, a computer, and a hemispherical protrusion. The base plate is installed with a bracket, and the clamping device is installed on the bracket. After the two ends of the limit lifting device are inserted into the limit sleeve, the groove part is directly placed in the test mold. The displacement sensor is fixed by the clamping device and connected to the table support on the limit lifting device to realize the measurement of the expansion and contraction properties of the grouting material. The displacement sensor is connected to the displacement collector through a wire, and the displacement collector is connected to the computer through a data cable. The hemispherical protrusion and the base plate are obtained through a steel plate cutting process and are self-contained.

3. The device for detecting filling properties of grouting materials at the bottom of a prefabricated field road slab according to claim 1 is characterized in that: The limit lifting device is composed of a concave component, a limit sleeve, grease, and a support. The limit sleeve is fixed on the test mold and poured into the limit sleeve. The support is welded on the concave component, and both ends of the concave component are inserted in the grease.

4. The device for detecting filling properties of grouting materials at the bottom of a prefabricated field road slab according to claim 1 is characterized in that: The moisturizing and health-preserving component adopts a plastic film containing hydroxyl groups.

5. The device for detecting filling properties of grouting materials at the bottom of a prefabricated field slab according to claim 1 is characterized in that: The homogeneity inspection component is composed of a test mold made of transparent organic glass, a liquid level ruler with millimeter scale, and a hemispherical groove. The liquid level ruler is pasted on the test mold, and the hemispherical groove is obtained by drilling and milling at the center of the bottom of the test mold.

6. The device for detecting filling properties of grouting materials at the bottom of a prefabricated field road slab according to claim 1 is characterized in that: The lateral flow filling detection component is composed of a horizontal tube and a vertical tube made of transparent material to form an L-shaped structure. The horizontal tube is connected to the test mold through a threaded connection, and the vertical tube has scales and is connected to the horizontal tube through a threaded connection.

7. The device for detecting filling properties of grouting materials at the bottom of a prefabricated field slab according to claim 1 is characterized in that: The infiltration assembly is composed of a silicone tube and single-grade crushed stones, and is connected to the test mold through a threaded connection.

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