Waterproof antiskid thin overlay

Abstract

The utility model discloses a waterproof antiskid thin overlay, which relates to the technical field of road maintenance, and comprises a waterproof layer, a bonding layer, a gravel sealing layer and a fog sealing layer which are sequentially laid from bottom to top, and the waterproof layer is used for being laid on an original road surface. The waterproof layer and the fog sealing layer improve the waterproof performance of the pavement, and the rubble sealing layer is matched, so that the wear resistance and skid resistance of the pavement are improved. The bonding layer serves as a surface bonding agent between the waterproof layer and the gravel sealing layer, a high polymer grid structure with high toughness is formed between the layers, the bonding performance and the pavement performance between the thin overlay layers are greatly improved, and lasting maintenance of a pavement is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of road maintenance, in particular to a waterproof and anti-skid thin layer covering. Background Art

[0002] As asphalt roads are used more and more widely, due to the imperfect drainage design of the roadbed and pavement and insufficient attention to the pavement drainage facilities, rainwater can easily leak into the pavement, making the pavement slippery, thereby shortening the service life of the road. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a waterproof and anti-skid thin layer cover, which improves the waterproof performance and wear resistance and anti-skid properties of the road surface and ensures long-term maintenance of the road surface.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The utility model provides a waterproof and anti-skid thin layer covering, comprising a waterproof layer, a bonding layer, a gravel sealing layer and a fog sealing layer which are laid in sequence from bottom to top, and the waterproof layer is used for being laid on the original road surface.

[0006] Preferably, the waterproof layer is made of waterproof coating.

[0007] Preferably, the spraying amount of the waterproof coating is 1.5 to 2.1 kg / m 2 .

[0008] Preferably, the bonding layer is made of composite silica gel.

[0009] Preferably, the thickness of the adhesive layer is 4 to 8 mm.

[0010] Preferably, the chip seal layer comprises an emulsified asphalt layer and aggregate embedded in the emulsified asphalt layer.

[0011] Preferably, the emulsified asphalt layer is made of emulsified asphalt, and the spreading amount of the emulsified asphalt is 0.7-1.0 kg / m 2 The spreading amount of the aggregate is 5-8 kg / m 2 .

[0012] Preferably, the emulsified asphalt is SBS modified emulsified asphalt, and the particle size of the aggregate is 2.36 to 4.75 mm.

[0013] Preferably, the chip seal has a thickness of 20 to 30 mm.

[0014] Preferably, the thickness of the fog seal layer is 1.0 to 1.5 mm.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] This waterproof, anti-skid thin-layer overlay comprises a waterproof layer, a bonding layer, a chip seal layer, and a fog seal layer, laid sequentially from bottom to top. The waterproof layer is applied over the existing road surface. The waterproof layer and fog seal layer enhance the road's waterproof performance, while, in combination with the chip seal layer, they also improve the road's wear resistance and anti-skid properties. The bonding layer acts as a surface adhesive between the waterproof layer and the chip seal layer, forming a highly resilient polymer mesh structure between the layers. This significantly improves the interlayer bonding and road usability of the thin-layer overlay, ensuring long-term maintenance of the road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of the waterproof and anti-slip thin layer cover provided by the utility model.

[0019] Explanation of the accompanying reference numerals: 1. Waterproof layer; 2. Adhesive layer; 3. Chip seal layer; 4. Fog seal layer; 5. Original road surface. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The purpose of the utility model is to provide a waterproof and anti-skid thin layer cover, which improves the waterproof performance and wear resistance and anti-skid properties of the road surface and ensures long-term maintenance of the road surface.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] like Figure 1 As shown, this embodiment provides a waterproof and anti-skid thin layer covering, including a waterproof layer 1, an adhesive layer 2, a gravel seal layer 3 and a fog seal layer 4 laid in sequence from bottom to top, and the waterproof layer 1 is used to be laid on the original road surface 5.

[0024] The waterproof layer 1 and fog seal layer 4 in this embodiment enhance the road's waterproof performance and, in conjunction with the chip seal layer 3, also improve the road's wear and skid resistance. The bonding layer 2, acting as the surface adhesive between the waterproof layer 1 and the chip seal layer 3, forms a highly resilient polymer grid structure between the layers. This significantly improves the interlayer bonding and road usability of the thin overlay, ensuring long-term maintenance of the road surface.

[0025] Specifically, the waterproof layer 1 adopts waterproof coating.

[0026] In this embodiment, the spraying amount of the waterproof coating is 1.5-2.1 kg / m 2 .

[0027] Specifically, the bonding layer 2 is made of composite silica gel.

[0028] In this embodiment, the thickness of the adhesive layer 2 is 4-8 mm.

[0029] Specifically, the composite silica gel in this embodiment comprises, by weight, 10% to 20% polyvinyl alcohol, 40% to 60% water-soluble nano-silica sol, 10% to 25% kaolin, 4% to 5% silane coupling agent, 5% to 10% glass fiber, and 0.1% to 1% organic acid retarder. The composite silica gel leverages the high rigidity of epoxy resin and the flexibility of polyvinyl alcohol to form a highly resilient polymer grid structure between the waterproof layer 1 and the chip seal layer 3.

[0030] Specifically, the chip seal layer 3 includes an emulsified asphalt layer and aggregate embedded in the emulsified asphalt layer.

[0031] The emulsified asphalt layer uses emulsified asphalt, and the spreading amount of emulsified asphalt is 0.7~1.0kg / m 2 The spreading amount of aggregate is 5-8kg / m 2 .

[0032] The emulsified asphalt in this embodiment is SBS modified emulsified asphalt, and the particle size of the aggregate is 2.36-4.75 mm.

[0033] In this embodiment, the thickness of the chip seal layer 3 is 20-30 mm.

[0034] In this specific embodiment, the thickness of the mist seal layer 4 is 1.0-1.5 mm.

[0035] Specifically, the fog seal layer 4 in this embodiment is prepared from the following raw materials, calculated by weight: 400-420 parts asphalt, 4-10 parts emulsifier, 30-35 parts kaolin, 500-600 parts hot water, and 70-80 parts waterproof emulsion. The high asphalt content of the fog seal layer 4 in this embodiment improves the waterproof performance of the road surface.

[0036] In this specific embodiment, the asphalt is 30# petroleum asphalt. The emulsifier includes one or both of MQ3 slow-cracking, fast-setting emulsifier and octadecyltrimethylammonium chloride. The hot water must not contain any harmful substances such as soluble salts, and the pH should be controlled between 6.0 and 8.0. Drinking water can be used. The waterproofing emulsion is a high-elastic acrylic emulsion.

[0037] During operation, the original pavement 5 is first pre-processed to ensure that the original pavement 5 has a certain structural strength, good flatness, slight structural damage and cracking, and solid, stable and uniform load-bearing.

[0038] Sprinkle a layer of waterproof layer 1 on the pre-treated original road surface 5, with a spreading amount of 1.5-2.1 kg / m 2 .

[0039] 24 hours after the waterproof layer 1 is spread, a bonding layer 2 configured in proportion is laid on the upper surface of the waterproof layer 1, and the laying thickness is 4 to 8 mm.

[0040] Then the chip seal 3 is laid, and the emulsified asphalt spreading rate is 0.7-1.0 kg / m 2 Aggregate spreading amount is 5~8kg / m 2 Use a spreader to spread the aggregate in proportion, then use a roller to compact it back and forth. After 4 hours, recycle the excess aggregate. The thickness of the chip seal 3 is 20-30mm. It is important to control the thickness of the compacted leveling layer.

[0041] Spray the mist seal layer 4 on the upper surface of the laid chip seal layer 3 at a spraying rate of 0.6-0.8kg / m 2 , spraying thickness 1.0-1.5mm.

[0042] After paving, the time of opening to traffic is controlled according to the construction climate on site and the evaporation and demulsification of water. After rolling by vehicles, the thickness of the waterproof and anti-skid thin layer is formed to be 25 to 40 mm.

[0043] In this embodiment, the waterproof layer 1 is made of waterproof coating, and the spraying amount is 1.6 kg / m 2 The bonding layer 2 is made of composite silica gel, including 15% polyvinyl alcohol, 45% water-soluble nano-silica sol, 25% kaolin, 5% silane coupling agent, 9% glass fiber, and 1% organic acid retarder. Its thickness is 6mm. The aggregate particle size used in the chip seal 3 is 2.35-4.72mm, and the aggregate spreading rate is 5.6kg / m 2 The spreading amount of SBS modified emulsified asphalt is 0.75kg / m 2 The fog seal layer 4 was prepared using 410 g of 30# petroleum asphalt, 4 g of MQ3 slow-cracking and fast-setting emulsifier, 30 g of kaolin, 550 g of hot water and 75 g of waterproof emulsion.

[0044] In another embodiment, the waterproof layer 1 is made of waterproof coating, and the spraying amount is 1.8 kg / m 2 The bonding layer 2 is made of composite silica gel, including 23% polyvinyl alcohol, 52% water-soluble nano-silica sol, 15% kaolin, 4% silane coupling agent, 5% glass fiber, and 1% organic acid retarder. Its thickness is 7mm. The aggregate particle size used in the chip seal 3 is 2.35-4.72mm, and the aggregate spreading rate is 6.5kg / m 2 The spreading amount of SBS modified emulsified asphalt is 0.9kg / m 2 The fog seal layer 4 was prepared using 400 g of 30# petroleum asphalt, 6 g of MQ3 slow-cracking and fast-setting emulsifier, 33 g of kaolin, 550 g of hot water and 70 g of waterproof emulsion.

[0045] In another embodiment, the waterproof layer 1 is made of waterproof coating, and the spraying amount is 2.1 kg / m 2 The bonding layer 2 is made of composite silica gel, including 10% polyvinyl alcohol, 60% water-soluble nano-silica sol, 14% kaolin, 5% silane coupling agent, 10% glass fiber, and 1% organic acid retarder. Its thickness is 8mm. The aggregate particle size used in the chip seal 3 is 2.35-4.72mm, and the aggregate spreading rate is 8kg / m 2 , the spreading amount of SBS modified emulsified asphalt is 1kg / m 2 The fog seal layer 4 was prepared using 420 g of 30# petroleum asphalt, 6 g of MQ3 slow-cracking and fast-setting emulsifier, 35 g of kaolin, 600 g of hot water and 80 g of waterproof emulsion.

[0046] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A waterproof and anti-slip thin layer cover, characterized in that: It includes a waterproof layer, a bonding layer, a gravel seal layer and a fog seal layer which are laid in sequence from bottom to top. The waterproof layer is used to be laid on the original road surface. The waterproof layer adopts waterproof coating, the bonding layer adopts composite silica gel, and the gravel seal layer includes an emulsified asphalt layer and aggregates embedded in the emulsified asphalt layer.

2. The waterproof and anti-slip thin layer cover according to claim 1, characterized in that: The spraying amount of the waterproof coating is 1.5-2.1 kg / m 2 .

3. The waterproof and anti-slip thin layer cover according to claim 1, characterized in that: The thickness of the bonding layer is 4 to 8 mm.

4. The waterproof and anti-slip thin layer cover according to claim 1, characterized in that: The emulsified asphalt layer is made of emulsified asphalt, and the spreading amount of the emulsified asphalt is 0.7-1.0 kg / m 2 The spreading amount of the aggregate is 5-8 kg / m 2 .

5. The waterproof and anti-slip thin layer cover according to claim 4, characterized in that: The emulsified asphalt is SBS modified emulsified asphalt, and the particle size of the aggregate is 2.36-4.75 mm.

6. The waterproof and anti-slip thin layer cover according to claim 1, characterized in that: The thickness of the chip seal is 20 to 30 mm.

7. The waterproof and anti-slip thin layer cover according to claim 1, characterized in that: The thickness of the mist seal layer is 1.0-1.5 mm.

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