On-site testing equipment for bonding strength of asphalt crack pouring adhesive

Abstract

The utility model relates to the technical field of bonding strength testing equipment, in particular to asphalt crack pouring glue bonding strength field testing equipment which comprises a test piece and a storage box, and asphalt crack pouring glue is arranged on the surface of the test piece. Compared with the prior art, the device has the advantages that the test column structure, the circular ring, the accommodating hole, the drawing instrument main body, the hydraulic cylinder, the anchorage device, the lantern ring, the thread and the threaded sleeve are arranged in a matched manner, so that a test is carried out in a targeted manner according to the specific application of the used asphalt crack pouring glue, and the bonding performance of the asphalt crack pouring glue is truly and accurately reflected; according to the equipment, the service temperature tensile property of the pavement crack pouring adhesive is tested by a simple sampling method, and the method does not need a tensile testing machine and can be used on site, so that the detection is faster, more convenient and more accurate, the actual effect of the crack pouring adhesive can be effectively evaluated, and detection data is provided for selecting, evaluating and improving the performance of the crack pouring adhesive; the method is of great significance in promoting development of related technologies.

Description

Technical Field

[0001] The utility model relates to the technical field of bonding strength testing equipment, in particular to an on-site testing equipment for bonding strength of asphalt caulking glue. Background Art

[0002] With the rapid development of the economy and society and the rapid expansion of the highway network, many highways will have pavement cracks after a long period of "service", which not only affects the appearance but also causes varying degrees of damage to the road surface. The generation of cracks will lead to a decrease in the bearing capacity of the road surface, accelerate the damage to the road surface, and also cause problems such as uneven settlement of the road surface. Therefore, timely repair of cracks in asphalt pavement is of great significance to ensure the performance and safety of the road surface. When repairing pavement cracks, asphalt caulking glue is needed. The bonding performance of asphalt caulking glue directly affects the service life of the road surface. The materials used in traditional crack caulking technology have poor permeability and durability, and cannot effectively prevent the development of cracks. The bonding performance of the caulking glue and the road surface is a key indicator for evaluating the caulking glue.

[0003] Both the domestic draft for comments and foreign standards prepare specimens and then conduct tensile tests indoors using a tensile testing machine to evaluate the bonding performance of the caulking adhesive. These standards only test the performance of the caulking adhesive material and the concrete structure. However, more than 95% of domestic high-grade highway pavement structures are semi-rigid base asphalt pavements. There are significant differences in the materials and structures of asphalt mixture pavements and cement concrete pavements, and indoor tests have significant limitations. Therefore, an on-site testing equipment for the bonding strength of asphalt caulking adhesive is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to provide an on-site testing device for the bonding strength of asphalt caulking glue to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides an on-site testing equipment for the bonding strength of asphalt caulking glue, including a test piece and a storage box, the surface of the test piece is provided with asphalt caulking glue, a test column structure is bonded to the asphalt caulking glue, a circular ring is provided on the test column structure, a storage hole is provided on one side of the circular ring, a puller body is provided inside the storage box, the puller body is connected to a hydraulic cylinder, the output rod of the hydraulic cylinder is connected to an anchor, a ring is provided on the test piece, a thread is provided on the inner wall of the ring, a threaded sleeve connected to the hydraulic cylinder is threaded on the thread.

[0007] Preferably, any of the above schemes comprises an anchor head, a threaded hole, a connecting threaded rod and a connecting plate, the anchor is connected to the anchor, a threaded hole is provided on the bottom side of the anchor head, a connecting threaded rod is threadedly connected to the inner wall of the threaded hole, and one end of the connecting threaded rod is fixedly connected to the connecting plate.

[0008] Preferably, in any of the above schemes, a plurality of partitions are fixedly connected to the interior of the storage box, and the interior of the storage box is divided into a plurality of storage spaces by the plurality of partitions.

[0009] Preferably, in any of the above schemes, an observation hole is provided on the outer surface of the collar, and the observation hole corresponds to the position of the anchor.

[0010] Preferably, any of the above schemes is that the asphalt caulking glue is located inside the receiving hole, the diameter of the receiving hole is matched with the diameter of the connecting plate, and the anchor head passes through the inside of the circular ring.

[0011] Preferably, any of the above solutions is that the circular ring and the test column structure are both located inside the collar, and the outer diameter of the circular ring is smaller than the inner diameter of the collar.

[0012] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0013] 1. Through the coordination of the test column structure, circular ring, receiving hole, puller body, hydraulic cylinder, anchor, collar, thread and threaded sleeve, targeted tests are carried out according to the specific purpose of the asphalt caulking glue used, which can truly and accurately reflect the bonding performance of the asphalt caulking glue. The equipment uses a simple sampling method to test the service temperature tensile properties of the pavement caulking glue. This method does not require a tensile testing machine and can be used on-site, making the test faster, more convenient and more accurate. It can effectively evaluate the actual effect of the caulking glue, which is of great significance for providing test data for the selection, evaluation and improvement of the performance of the caulking glue and promoting the development of related technologies.

[0014] 2. The connecting plate is connected to the anchor head by connecting the threaded rod and the threaded hole, which makes the installation and removal of the connecting plate easier. After the test work on one position of the specimen is completed, asphalt caulking glue will adhere to the connecting plate. If it is necessary to continue the test work on another position of the specimen, the connecting plate can be quickly removed and replaced with a connecting plate that is not adhered to the asphalt caulking glue. There is no need to replace the entire test column structure and there is no need to separate the anchor head from the anchor, so that the test operation at the next position can be continued quickly, ensuring the efficiency of the test.

[0015] 3. By providing a storage box and arranging a plurality of partitions on the storage box, the puller body, anchor, collar and test column structure can be separated and placed, which is not only convenient for subsequent assembly operations, but also convenient for carrying the test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the test column and its connecting components of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the hydraulic cylinder and its connecting components of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the sleeve ring of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the circular ring of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the test column structure of the utility model.

[0022] In the figure: 1-test piece, 2-storage box, 3-asphalt caulking glue, 4-test column structure, 401-anchor head, 402-threaded hole, 403-connecting threaded rod, 404-connecting plate, 5-ring, 6-storage hole, 7-puller body, 8-hydraulic cylinder, 9-anchor, 10-ring, 11-thread, 12-threaded sleeve, 13-partition, 14-observation hole. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0024] like Figures 1 to 6As shown, a field testing equipment for the bonding strength of asphalt caulking glue is provided, which includes a test piece 1 and a storage box 2. The surface of the test piece 1 is provided with asphalt caulking glue 3, and a test column structure 4 is bonded to the asphalt caulking glue 3. A ring 5 is provided on the test column structure 4, and a storage hole 6 is provided on one side of the ring 5. A puller body 7 is provided inside the storage box 2, and the puller body 7 is connected to a hydraulic cylinder 8, and an output rod of the hydraulic cylinder 8 is connected to an anchor 9. A collar 10 is provided on the test piece 1, and a thread 11 is provided on the inner wall of the collar 10, and a threaded sleeve 12 connected to the hydraulic cylinder 8 is threadedly connected to the thread 11. The working principle of the puller body 7 controlling the hydraulic cylinder 8 is an existing mature technology, and the anchor 9 is also a part of the puller in the prior art. The workpiece is fixed by the anchor 9, so it is not elaborated in detail. When using the test When installing the equipment, first clean the surface of the road surface on site, then connect the asphalt caulking glue 3 with the road surface, then make the test column structure 4 adhere to the asphalt caulking glue 3, and put the ring 5 on the surface of the test column structure 4, and block the asphalt caulking glue 3 by the ring 5 to prevent the asphalt caulking glue 3 from overflowing from the ring 5, and then connect the threaded sleeve 12 with the thread 11, and make the threaded sleeve 12 completely enter the interior of the ring 10, and then connect the test column structure 4 through the anchor 9, and then control the hydraulic cylinder 8 to start and pull the test column structure 4 to move until the test column structure 4 is separated from the asphalt caulking glue 3. At this time, observe the indication on the display screen of the puller body 7 to understand the bonding strength of the asphalt caulking glue 3. The same sampling method can be used to test samples taken from the road surface.

[0025] As an optional technical solution of the present utility model, the test column structure 4 includes an anchor head 401, a threaded hole 402, a connecting threaded rod 403 and a connecting plate 404. The anchor head 401 is connected to the anchor 9. A threaded hole 402 is provided on the bottom side of the anchor head 401. The inner wall of the threaded hole 402 is threadedly connected to the connecting threaded rod 403. One end of the connecting threaded rod 403 is fixedly connected to the connecting plate 404. When the anchor head 401 and the connecting plate 404 are connected, the connecting threaded rod 403 is connected to the threaded hole 402, and the connecting plate 404 is tightly fitted with the anchor head 401, thereby connecting the anchor head 401 and the connecting plate 404.

[0026] As an optional technical solution of the present invention, a plurality of partitions 13 are fixedly connected to the interior of the storage box 2, and the interior of the storage box 2 is divided into a plurality of storage spaces by the plurality of partitions 13. The plurality of storage spaces facilitate the storage of different parts, thus avoiding confusion of parts.

[0027] As an optional technical solution of the present invention, an observation hole 14 is provided on the outer surface of the collar 10 , and the observation hole 14 corresponds to the position of the anchor 9 . Through the observation hole 14 , it is convenient to observe whether the anchor 9 and the anchor head 401 are firmly connected.

[0028] As an optional technical solution of the present invention, the asphalt caulking glue 3 is located inside the receiving hole 6 , the diameter of the receiving hole 6 is matched with the diameter of the connecting disk 404 , and the anchor head 401 passes through the inside of the circular ring 5 .

[0029] As an optional technical solution of the utility model, the ring 5 and the test column structure 4 are both located inside the ring 10 , and the outer diameter of the ring 5 is smaller than the inner diameter of the ring 10 , so that the ring 5 can be smoothly placed inside the ring 10 .

[0030] A field testing device for the bonding strength of asphalt caulking glue, the working principle is as follows:

[0031] 1) Clean the road surface to ensure that the test area is free of dust and other impurities;

[0032] 2) Connect the asphalt joint filling glue 3 with the road surface;

[0033] 3) Connect the connecting plate 404 to the asphalt caulking glue 3, and pass the anchor head 401 through the inside of the ring 5, so that the bottom side of the ring 5 fits the surface of the test piece 1. At this time, the asphalt caulking glue 3 and the connecting plate 404 are both located inside the receiving hole 6;

[0034] 4) Connect the threaded sleeve 12 to the thread 11 and allow the threaded sleeve 12 to completely enter the interior of the collar 10;

[0035] 5) Connect the anchor head 401 through the anchor 9, and control the hydraulic cylinder 8 through the puller body 7 to start and pull the test column structure 4 to move until the test column structure 4 is separated from the asphalt caulking glue 3. At this time, the reading on the display screen of the puller body 7 can be observed to understand the bonding strength of the asphalt caulking glue 3, thereby completing the on-site test operation of the bonding strength of the asphalt caulking glue.

[0036] In summary, the on-site testing equipment for the bonding strength of asphalt caulking glue, through the matching arrangement of the test column structure 4, the circular ring 5, the receiving hole 6, the puller body 7, the hydraulic cylinder 8, the anchor 9, the collar 10, the thread 11 and the threaded sleeve 12, carries out targeted tests according to the specific use of the asphalt caulking glue used, and truly and accurately reflects the bonding performance of the asphalt caulking glue. The equipment uses a simple sampling method to test the service temperature tensile performance of the pavement caulking glue. This method does not require a tensile testing machine and can be used on-site, making the detection faster, more convenient and more accurate, and can effectively evaluate the actual effect of the caulking glue. It is of great significance to provide detection data for selecting, evaluating and improving the performance of the caulking glue and promoting the development of related technologies. The connecting plate 404 is connected to the threaded rod 403 and the threaded hole 402 through The anchor head 401 is connected, so that the operation of installing and removing the connecting plate 404 is relatively simple. After the test work on one position of the specimen 1 is completed, the asphalt caulking glue 3 will be adhered to the connecting plate 404. If it is necessary to continue the test work on another position of the specimen 1, the connecting plate 404 can be quickly removed and replaced with the connecting plate 404 that is not adhered with the asphalt caulking glue 3. There is no need to replace the entire test column structure 4 and there is no need to separate the anchor head 401 from the anchor 9, so that the test operation at the next position can be continued quickly, thereby ensuring the efficiency of the test. By providing a storage box 2 and arranging a plurality of partitions 13 on the storage box 2, the puller body 7, the anchor 9, the ring 10 and the test column structure 4 can be separated and placed, which is not only convenient for subsequent assembly operations, but also convenient for carrying the test equipment.

Claims

1. A field testing device for the bonding strength of asphalt caulking glue, characterized by: The invention comprises a test piece (1) and a storage box (2), wherein the surface of the test piece (1) is provided with an asphalt caulking glue (3), a test column structure (4) is bonded to the asphalt caulking glue (3), a circular ring (5) is provided on the test column structure (4), a storage hole (6) is provided on one side of the circular ring (5), a puller body (7) is provided inside the storage box (2), the puller body (7) is connected to a hydraulic cylinder (8), an output rod of the hydraulic cylinder (8) is connected to an anchor (9), a collar (10) is provided on the test piece (1), a thread (11) is provided on the inner wall of the collar (10), and a threaded sleeve (12) connected to the hydraulic cylinder (8) is threadedly connected to the thread (11).

2. The on-site testing equipment for bonding strength of asphalt caulking adhesive according to claim 1 is characterized by: The test column structure (4) comprises an anchor head (401), a threaded hole (402), a connecting threaded rod (403) and a connecting plate (404); the anchor (9) is connected to the anchor head (401); a threaded hole (402) is provided on the bottom side of the anchor head (401); the inner wall of the threaded hole (402) is threadedly connected to the connecting threaded rod (403); and one end of the connecting threaded rod (403) is fixedly connected to the connecting plate (404).

3. The on-site testing equipment for bonding strength of asphalt caulking glue according to claim 2 is characterized by: A plurality of partitions (13) are fixedly connected to the interior of the storage box (2), and the interior of the storage box (2) is divided into a plurality of storage spaces by the plurality of partitions (13).

4. The on-site testing equipment for bonding strength of asphalt caulking adhesive according to claim 3 is characterized by: An observation hole (14) is provided on the outer surface of the collar (10), and the observation hole (14) corresponds to the position of the anchor (9).

5. The on-site testing equipment for bonding strength of asphalt caulking adhesive according to claim 4 is characterized by: The asphalt caulking glue (3) is located inside the receiving hole (6); the diameter of the receiving hole (6) matches the diameter of the connecting plate (404); and the anchor head (401) passes through the inside of the circular ring (5).

6. The on-site testing equipment for bonding strength of asphalt caulking adhesive according to claim 5 is characterized by: The circular ring (5) and the test column structure (4) are both located inside the collar (10), and the outer diameter of the circular ring (5) is smaller than the inner diameter of the collar (10).

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