Double-layer composite asphalt road joint sealing tape

Abstract

The utility model discloses double -deck composite pitch road pressure joint strip, include: first pitch layer, second pitch layer, back pull subassembly and fixed part, the bottom of second pitch layer sets up in the first pitch layer, and the bottom of second pitch layer is provided with the protection part, and back pull subassembly includes and inserts the back pull link in the first pitch layer and the middle part of second pitch layer, and the bottom of protection part is provided with the first adhesive layer, and back pull link inserts and connects in the top of first adhesive layer. The utility model discloses the design through protection part, back pull link, first adhesive layer and reinforcing part, and the protection part for protecting first pitch layer is set up, reduces the situation of taking away pitch when using the wheel tire, and back pull link is in turn through first pitch layer and second pitch layer when using, and through the pull of back pull link, when the vehicle is moved on the top of pressure joint strip and drives pitch layer to move, back pull pitch layer, reduce the situation that pressure joint strip is driven to crack open because of wheel.

Description

Technical Field

[0001] This utility model relates to the field of highway maintenance technology, and in particular to a double-layer composite asphalt road joint sealing strip. Background Technology

[0002] Double-layer composite asphalt road crack sealing tape is a high-strength road maintenance material. It adopts a double-layer structure design and is directly bonded to road surface cracks through a cold construction process.

[0003] Traditional double-layer composite asphalt road crack sealing tape consists of asphalt, an adhesive layer, and a release layer. During application, the release layer is peeled off from the bottom of the adhesive layer, and the crack sealing tape is then fixed to the road crack using the adhesive layer. The crack sealing tape is used to repair the road. However, after repair, under frequent traffic loads, the crack sealing tape is subjected to wheel friction, causing the top of the tape to shift to one side. Prolonged pulling can lead to cracks, necessitating further repair. Therefore, this solution proposes a double-layer composite asphalt road crack sealing tape to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a double-layer composite asphalt road joint sealant to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer composite asphalt road joint sealing strip, comprising:

[0006] First asphalt layer;

[0007] A second asphalt layer is disposed at the bottom of the first asphalt layer, and a protective component is disposed at the bottom of the second asphalt layer.

[0008] A pullback assembly includes a pullback rod that is interposed between a first asphalt layer and a second asphalt layer. A first adhesive layer is provided at the bottom of the protective member. The pullback rod is interposed at the top of the first adhesive layer. A reinforcing member is provided at the connection between the pullback rod and the first adhesive layer.

[0009] A fastener is provided at the bottom of the first adhesive layer and is used to fix the position of the seam sealing tape.

[0010] Preferably, a protective film is provided on the top of the first asphalt layer, the protective film being used to protect the first asphalt layer.

[0011] Preferably, the protective component includes an antibacterial layer disposed at the bottom of the second asphalt layer, the antibacterial layer being disposed at the top of the first adhesive layer, and the pull-back rod being inserted and connected in the middle of the antibacterial layer.

[0012] Preferably, the reinforcing member includes a reinforcing block fixedly connected to the bottom end of the pull-back rod, the reinforcing block being inserted through the bottom of the first adhesive layer.

[0013] Preferably, the reinforcing block has multiple reinforcing holes in its center, and the first adhesive layer is inserted into the interior of the reinforcing holes.

[0014] Preferably, a waterproof layer is provided at the bottom of the first adhesive layer, and the fastener is provided at the bottom of the waterproof layer.

[0015] Preferably, the waterproof layer includes a second adhesive layer disposed at the bottom of the waterproof layer, and a release paper is disposed at the bottom of the second adhesive layer.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] This utility model incorporates a protective component, a pull rod, a first adhesive layer, and a reinforcing component. The protective component protects the first asphalt layer, reducing the likelihood of the tires carrying away asphalt during use. In use, the pull rod passes sequentially through the first and second asphalt layers. By pulling the pull rod, when the vehicle moves over the top of the joint tape, causing the asphalt layer to move, the asphalt layer is pulled back, reducing the possibility of the joint tape cracking due to the wheels. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the interlayer structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the pull-back assembly of this utility model.

[0020] In the diagram: 1. First asphalt layer; 2. Protective membrane; 3. Second asphalt layer; 4. Antibacterial layer; 5. First adhesive layer; 6. Waterproof layer; 7. Second adhesive layer; 8. Release paper; 9. Pull-back assembly; 901. Pull-back rod; 902. Reinforcing block; 903. Reinforcing hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1 and Figure 2 The double-layer composite asphalt road joint tape shown includes:

[0023] First asphalt layer 1;

[0024] The second asphalt layer 3 is disposed at the bottom of the first asphalt layer 1, and a protective component is disposed at the bottom of the second asphalt layer 3.

[0025] The pullback assembly 9 includes a pullback rod 901 that is interlaced between the first asphalt layer 1 and the second asphalt layer 3. A first adhesive layer 5 is provided at the bottom of the protective component. The pullback rod 901 is interlaced with the top of the first adhesive layer 5. A reinforcing member is provided at the connection between the pullback rod 901 and the first adhesive layer 5.

[0026] The fastener is located at the bottom of the first adhesive layer 5 and is used to fix the position of the seam sealing tape.

[0027] A protective membrane 2 is provided on the top of the first asphalt layer 1, which is used to protect the first asphalt layer 1.

[0028] It should be noted that the protective film 2 is made of epoxy resin to prevent direct friction from vehicle tires, pedestrians, or construction machinery, thus avoiding damage to the surface of the joint tape. The first adhesive layer 5 is made of high-molecular polymer adhesive to connect the protective components and the fixing components. The first asphalt layer 1 is made of highly elastic modified asphalt to provide the main sealing and flexible deformation capabilities to adapt to the thermal expansion and contraction of the road surface. The second asphalt layer 3 is made of emulsified asphalt to enhance the adhesion with the first asphalt layer 1 and fill the tiny pores in the base layer. In use, the pull rod 901 is passed through the first asphalt layer 1 and the second asphalt layer 3 in sequence. By pulling the pull rod 901, when the vehicle moves on top of the joint tape, causing the asphalt layer to move, the asphalt layer is pulled back, reducing the possibility of the joint tape cracking due to the movement of the vehicle wheels.

[0029] Specifically, the protective component includes an antibacterial layer 4 located at the bottom of the second asphalt layer 3, the antibacterial layer 4 located at the top of the first adhesive layer 5, and a pull rod 901 inserted and connected in the middle of the antibacterial layer 4.

[0030] It should be noted that the antibacterial layer 4 is zinc oxide. Its function is to inhibit the growth of microorganisms in the cracks, prevent material degradation caused by biological corrosion, and reduce secondary road damage caused by microbial activity in long-term humid environments, thereby extending the service life of the crack sealing tape.

[0031] Specifically, the reinforcing component includes a reinforcing block 902 fixedly connected to the bottom end of the pull-back rod 901. The reinforcing block 902 is inserted through the bottom of the first adhesive layer 5. Multiple reinforcing holes 903 are opened in the middle of the reinforcing block 902, and the first adhesive layer 5 is inserted through the interior of the reinforcing holes 903.

[0032] It should be noted that the reinforcing block 902 is a single unit. Multiple reinforcing holes 903 are provided on the top of the reinforcing block 902. When it is necessary to fix the position of the reinforcing block 902, the reinforcing block 902 is first moved to the top of the fixing component, and then a polymer adhesive is applied to the top of the reinforcing block 902, so that part of the polymer adhesive passes through the reinforcing holes 903 and is fixed to the top of the fixing component. Then, a first adhesive layer 5 is formed on the top of the reinforcing block 902. This design strengthens the connection between the pull rod 901 and the first adhesive layer 5.

[0033] Specifically, a waterproof layer 6 is provided at the bottom of the first adhesive layer 5, and a fastener is provided at the bottom of the waterproof layer 6. The waterproof layer 6 includes a second adhesive layer 7 provided at the bottom of the waterproof layer 6, and a release paper 8 is provided at the bottom of the second adhesive layer 7.

[0034] It should be noted that the material of the second adhesive layer 7 is the same as that of the first adhesive layer 5, and it is used to fix the seam sealing tape in the required position during use; the waterproof layer 6 is made of synthetic rubber, and it is used to prevent water from penetrating downwards to protect the second adhesive layer 7 during use; the release paper 8 is existing silicone paper, which is used to protect the second adhesive layer 7 and reduce the amount of dust that sticks to the second adhesive layer 7.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-layer composite asphalt road joint sealing strip, characterized in that, include: First asphalt layer (1); The second asphalt layer (3) is disposed at the bottom of the first asphalt layer (1), and a protective component is disposed at the bottom of the second asphalt layer (3); A pullback assembly (9) includes a pullback rod (901) that is inserted between the first asphalt layer (1) and the second asphalt layer (3). A first adhesive layer (5) is provided at the bottom of the protective member. The pullback rod (901) is inserted between the top of the first adhesive layer (5). A reinforcing member is provided at the connection between the pullback rod (901) and the first adhesive layer (5). The fastener is located at the bottom of the first adhesive layer (5) and is used to fix the position of the seam tape.

2. The double-layer composite asphalt road joint sealing strip according to claim 1, characterized in that, A protective film (2) is provided on the top of the first asphalt layer (1), and the protective film (2) is used to protect the first asphalt layer (1).

3. The double-layer composite asphalt road joint sealing strip according to claim 1, characterized in that, The protective component includes an antibacterial layer (4) disposed at the bottom of the second asphalt layer (3), the antibacterial layer (4) being disposed at the top of the first adhesive layer (5), and the pull rod (901) being inserted and connected in the middle of the antibacterial layer (4).

4. The double-layer composite asphalt road joint sealing strip according to claim 1, characterized in that, The reinforcing member includes a reinforcing block (902) fixedly connected to the bottom end of the pull-back rod (901), and the reinforcing block (902) is inserted through the bottom of the first adhesive layer (5).

5. The double-layer composite asphalt road joint sealing strip according to claim 4, characterized in that, The reinforcing block (902) has multiple reinforcing holes (903) in the middle, and the first adhesive layer (5) is inserted into the interior of the reinforcing holes (903).

6. The double-layer composite asphalt road joint sealing strip according to claim 1, characterized in that, A waterproof layer (6) is provided at the bottom of the first adhesive layer (5), and the fastener is provided at the bottom of the waterproof layer (6).

7. The double-layer composite asphalt road joint sealing strip according to claim 6, characterized in that, The double-layer composite asphalt road joint tape includes a second adhesive layer (7) set at the bottom of the waterproof layer (6), and a release paper (8) is set at the bottom of the second adhesive layer (7).

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