High-strength anti-cracking patch formed by combining glass fiber impregnated non-woven fabric

Abstract

The utility model provides a high-strength anti-crack patch formed by combining glass fiber impregnated non-woven fabrics, which relates to the technical field of high-strength anti-crack patches and comprises an isolating membrane, a bonding layer arranged on the top surface of the isolating membrane, a base layer arranged on the top surface of the bonding layer, and a geotextile layer arranged on the top surface of the base layer. The edges of the two sides of the isolating membrane, the bonding layer, the base layer and the geotextile layer are all in a rack shape, racks are arranged on the edges of the two sides of the isolating membrane, the bonding layer, the base layer and the geotextile layer, and the shapes and the positions of the racks on the edges of the two sides of the isolating membrane, the bonding layer, the base layer and the geotextile layer are consistent. When the straight anti-crack patch is used, the contact area between the racks and the ground is increased, and the bonding force between the bonding layer and the base material is enhanced through the meshing effect of the racks, so that the edge warping phenomenon is effectively prevented, and the defect that the edges of the two sides of the straight anti-crack patch are prone to edge warping is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -strength anti -crack paste technical field especially relates to a kind of high -strength anti -crack paste combined by glass fibre impregnated non-woven fabric. BACKGROUND

[0002] According to the anti-crack paste of Chinese open (announcement) number CN215252075U, for road surface crack repair, including the anti-crack paste is sequentially stacked from bottom to top with lower coating, high-strength base, upper coating and high-temperature resistant fabric, first protective film is equipped between the lower coating and the high-strength base, second protective film is equipped between the upper coating and the high-strength base. The anti-crack paste of the utility model uses self-adhesive, the lower coating is self-adhesive polymer, the anti-crack paste is pasted with original road surface strong bonding after sticking, without spreading adhesive layer oil.

[0003] The shape of the above-mentioned technology is straight type, and the two side edges of the straight type anti-crack paste are prone to warping during use. This reduces the effective bonding area of the anti-crack paste with the road surface or base surface, thereby affecting its ability to disperse pressure and prevent crack formation, and further reducing the anti-cracking effect. SUMMARY

[0004] The utility model discloses a kind of high-strength anti-crack pastes combined by glass fibre impregnated non-woven fabric to solve the two side edges of the straight type anti-crack paste in prior art are prone to warping situation.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of high-strength anti-crack paste combined by glass fibre impregnated non-woven fabric, including isolation film, the top surface of the isolation film is equipped with adhesive layer, the top surface of the adhesive layer is equipped with base layer, the top surface of the base layer is equipped with geotextile layer.

[0006] Preferably, the isolation film is made of polyethylene and polypropylene, and the thickness of the isolation film is 0.5-0.8mm.

[0007] Preferably, the adhesive layer is modified asphalt, and the thickness of the adhesive layer is 1.3-1.5mm.

[0008] Preferably, the base layer is a high molecular polymer of asphalt base, and the thickness of the base layer is 0.5-0.6mm.

[0009] Preferably, the geotextile layer is a mixture of glass fiber and polyester, and the thickness of the geotextile layer is 0.4-0.6mm.

[0010] Preferably, the two side edges of the isolation film, the adhesive layer, the base layer and the geotextile layer are in the form of a rack.

[0011] Preferably, the isolation film, the adhesive layer, the tire base layer and the geotextile layer are all compounded together by means of hot pressing or gluing.

[0012] Advantages

[0013] In the utility model, the two side edges of the isolation film, the adhesive layer, the tire base layer and the geotextile layer are all provided with racks, and the shape and position of the racks on the two side edges of the isolation film, the adhesive layer, the tire base layer and the geotextile layer are consistent, so that when used, the racks increase the contact area with the ground, and through the biting action of the racks, the adhesion between the adhesive layer and the base material is enhanced, thereby effectively preventing the occurrence of the edge lifting phenomenon, and solving the defect that the two side edges of the straight type anti-cracking patch are prone to edge lifting. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an isometric view of the utility model;

[0015] Figure 2 It is a perspective view of the utility model;

[0016] Figure 3 It is a top view of the utility model;

[0017] Figure 4 It is a sectional view of the utility model along A-A of Figure 3

[0018] Legend:

[0019] 1, isolation film; 2, adhesive layer; 3, tire base layer; 4, geotextile layer; 5, rack. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the utility model.

[0021] The specific embodiments of the utility model are described below in combination with the drawings. Specific embodiment one:

[0023] Reference Figures 1-4 ​The application discloses a high-strength anti-crack patch combined by glass fiber and non-woven fabric, which comprises an isolation film 1, the top surface of the isolation film 1 is provided with an adhesive layer 2, the top surface of the adhesive layer 2 is provided with a base layer 3, the top surface of the base layer 3 is provided with a geotextile layer 4, the isolation film 1 is made of polyethylene (PE) and polypropylene (PP), the thickness of the isolation film 1 is 0.5-0.8 mm, the adhesive layer 2 is modified asphalt, the thickness of the adhesive layer 2 is 1.3-1.5 mm, the base layer 3 is a high-molecular polymer of asphalt base, the thickness of the base layer 3 is 0.5-0.6 mm, the geotextile layer 4 is a mixture of glass fiber and polyester, the thickness of the geotextile layer 4 is 0.4-0.6 mm, the two side edges of the isolation film 1, the adhesive layer 2, the base layer 3 and the geotextile layer 4 are in the form of rack 5, and the isolation film 1, the adhesive layer 2, the base layer 3 and the geotextile layer 4 are combined together through hot pressing or gluing.

[0024] High strength anti-cracking paste is composed of isolation film 1, adhesive layer 2, base layer 3 and geotextile layer 4 in order, which are compounded together by hot pressing or gluing. The thickness of high strength anti-cracking paste is 3-3.5mm. Isolation film 1 is used to protect adhesive layer 2. Adhesive layer 2 is modified asphalt with thickness of 1.3-1.5mm, which is specially processed by asphalt frame mixture with certain proportion, and is used for sticking and waterproofing. Base layer 3 is on the top surface of adhesive layer 2 with thickness of 0.5-0.6mm, which plays a role of oil hanging and reinforcement in production and work. Geotextile layer 4 on the top surface of base layer 3 is glass fiber impregnated non-woven fabric with thickness of 0.4-0.6mm. Its unique combination combines the advantages of glass fiber and polyester fiber, i.e. the strength of glass fiber and the flexibility of polyester fiber. It forms a structural layer by absorbing asphalt material, and has physical properties of waterproofing, heat resistance and corrosion resistance, and has high tensile strength, low expansion coefficient, good toughness and no long-term creep. In addition, the isolation, anti-seepage and reinforcement of anti-cracking paste effectively prevent water from penetrating into the roadbed, and the anti-cracking paste has a certain extensibility. The tensile stress of the base layer crack is transferred to a wider range through the high polymer of the anti-cracking paste, thereby relieving the stress intensity at the crack and playing a role of energy dissipation and buffering. The tensile strength reaches a new height. The water isolation and anti-seepage effect of high strength anti-cracking paste effectively prolongs the service life of the road surface, and fundamentally reduces the probability of crack generation and prevents the deformation of asphalt in adhesive layer 2. The two side edges of isolation film 1, adhesive layer 2, base layer 3 and geotextile layer 4 are provided with racks 5, and the shape and position of the racks 5 on the two side edges of isolation film 1, adhesive layer 2, base layer 3 and geotextile layer 4 are consistent. In this way, when used, the racks 5 increase the contact area with the ground, and also enhance the bonding force between the adhesive layer 2 and the base material through the biting effect of the racks 5, thereby effectively preventing the occurrence of the edge lifting phenomenon. High strength anti-cracking paste is mainly used for new construction and maintenance engineering of pavement base of expressway, general highway and urban road. The organic combination of this new type of composite material with several crack prevention and waterproof measures such as geosynthetic material and stress absorbing layer material is an optimized combination and upgrading product of current highway interlayer anti-cracking and waterproof material, which has high tensile strength, good toughness and surface viscosity, is suitable for pavement base, can prevent cracks caused by temperature influence and vertical load from reflecting to the surface layer, and only needs to tear off the isolation film 1, stick it on the asphalt concrete surface with cracks or peeling, then brush asphalt or asphalt oil, and cover the high strength anti-cracking paste to relatively completely treat the pavement cracks. The overall construction is convenient, does not pollute the environment, can be opened to traffic after construction, does not affect traffic, can prevent rainwater from entering the highway base through the cracks, effectively protects the roadbed, significantly prolongs the service life of the highway pavement, and needs attention. According to the width of the pavement crack, the specification of the anti-cracking paste used is selected. For cracks with width of 1mm-3mm, at least 24cm high strength anti-cracking paste is selected. For cracks with width of 3mm-5mm, at least 32cm high strength anti-cracking paste is selected.The crack (joint) with the width between 5mm and 19mm must be cleaned and filled with sealant, and then be pasted with the high-strength anti-crack tape with the width of 48cm; the crack (joint) with the width above 19mm and the sunken area must be cleaned, filled with mortar, sealant or asphalt mixture and compacted to the existing height, and then be pasted with the high-strength anti-crack tape with the width of 98cm; the crack or pit with the width above 50mm must be cleaned first, and then be filled with mortar or hot asphalt mixture and compacted to the existing height, and then be pasted with the high-strength anti-crack tape; for the crack (joint) and the sunken area with different heights, the leveling treatment must be performed, and the crack (joint) selected to use the anti-crack tape must be cleaned by using a steel wire brush and a blower before being pasted, the surface of the crack (joint) must be flat (the crack (joint) with the width above 3mm must be filled with high-molecular sealant first), and there must be no large protrusions, depressions, loose stones, oil marks, grease and other contaminants; if there is a large pit, the pit must be filled, and if there is a fault, the fault must be chiseled into a gentle slope first, and then the anti-crack tape is pasted; if there is much dust and the base surface has poor strength, the anti-crack tape special base oil must be applied to the place where the anti-crack tape is pasted by using a sprayer or a brush to increase the adhesion and avoid displacement and falling of the asphalt mixture when the surface layer is paved; the isolation film on the back of the anti-crack tape is removed, and the anti-crack tape is pasted on the surface of the road along the center line of the crack (joint); if the crack (joint) is irregular, the anti-crack tape can be cut by using a paper cutter, and then be pasted along the direction of the crack (joint); however, 50-100mm of overlap must be formed at the joint of the anti-crack tapes, and the anti-crack tape must be pressed to the ground by using a rubber wheel or a vehicle to ensure that the anti-crack tape is integrated with the road surface, and there must be no bubbles and wrinkles; after the construction of the anti-crack tape is completed, the finished road surface must be protected as much as possible to avoid pollution and damage to the surface of the anti-crack tape, so that the tack coat and the asphalt concrete can be sprayed as soon as possible, and the hot paving thickness must be not less than 40mm. Specific embodiment two:

[0026] With reference to Figures 1-4 A high-strength anti-crack tape combined with glass fiber impregnated non-woven fabric, further based on the basic structure in specific embodiment one, the glass fiber impregnated non-woven fabric of the geotextile layer 4 can be replaced with geotextile cloth, which is widely used in seepage prevention, drainage and reinforcement of geotechnical engineering. Users can use different textiles according to different scenes.

[0027] In summary:

[0028] 1. The utility model discloses a straight type anti -crack patch, which is characterized by comprising an isolation film 1, an adhesive layer 2, a tire base layer 3 and a geotextile layer 4, wherein the two side edges of the isolation film 1, the adhesive layer 2, the tire base layer 3 and the geotextile layer 4 are provided with a rack 5, and the shape and position of the rack 5 on the two side edges of the isolation film 1, the adhesive layer 2, the tire base layer 3 and the geotextile layer 4 are consistent.

[0029] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "lower", "below" and "under" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength anti-cracking patch made of glass fiber impregnated non-woven fabric combined with a release film (1), characterized in that: The top surface of the isolation film (1) is provided with an adhesive layer (2), the top surface of the adhesive layer (2) is provided with a base layer (3), the top surface of the base layer (3) is provided with a geotextile layer (4), the thickness of the isolation film (1) is 0.5-0.8mm, and the two side edges of the isolation film (1), the adhesive layer (2), the base layer (3) and the geotextile layer (4) are all in the form of a rack (5).

2. The high strength, high tear resistant patch of claim 1 wherein: The adhesive layer (2) is modified asphalt, and the thickness of the adhesive layer (2) is 1.3-1.5mm.

3. The high strength, high tear resistant patch of claim 1 wherein: The base layer (3) is a high molecular polymer based on asphalt, and the thickness of the base layer (3) is 0.5-0.6mm.

4. The high strength, high tear resistant patch of claim 1 wherein: The thickness of the geotextile layer (4) is 0.4-0.6mm.

5. The high strength, high tear resistant patch of claim 1 wherein: The isolation film (1), the adhesive layer (2), the base layer (3) and the geotextile layer (4) are all compounded together by hot pressing or gluing.

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