Winter pavement structure

Abstract

The utility model relates to the technical field of pavement maintenance, in particular to a winter pavement structure which comprises a waterproof layer, a bonding layer A, a cold-paved bottom surface layer, a bonding layer B and a cold-paved surface layer, the waterproof layer permeates into an original pavement, the bonding layer A is in complete contact with the waterproof layer, and the cold-paved bottom surface layer is paved on the surface, far away from the waterproof layer, of the bonding layer A; the bonding layer B is sprayed on the side, far away from the bonding layer A, of the cold-paved bottom surface layer, and the cold-paved surface layer is paved on the side, far away from the cold-paved bottom surface layer, of the bonding layer B. In this way, the problems that in the prior art, the temperature change in four seasons in northern areas is obvious, but construction units do not take account of the risk of road surface diseases for construction progress; and the problems of serious cracking, frost boiling and other diseases of the pavement are often caused, and the construction quality is seriously influenced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pavement maintenance, in particular to a winter pavement structure. Background Art

[0002] In road construction, asphalt mixture road construction is still very difficult, especially in winter, which is generally affected by temperature and season factors. Therefore, in order to ensure the quality of asphalt mixture pavement construction, it is necessary not only to consider various factors, but also to use scientific construction technology to make timely corrections to problems such as cracks, sinkholes and other road surface defects. Only in this way can traffic maintenance and construction management work be carried out smoothly.

[0003] In the northern region, the temperature changes in the four seasons are more obvious, but in order to speed up the construction progress, construction units are willing to work against the wind and risk road damage, which often causes serious cracks, slurry and other road damage, seriously affecting the construction quality. Utility Model Content

[0004] The purpose of the utility model is to provide a winter pavement structure, aiming to solve the technical problem in the prior art that in the northern region, the temperature changes in the four seasons are more obvious, but the construction units, in order to ensure the construction progress, do not hesitate to work against the wind at the risk of road surface diseases, which often causes serious cracking, slurrying and other diseases of the road surface, which has a serious impact on the construction quality.

[0005] To achieve the above-mentioned purpose, the utility model adopts a winter pavement structure, including a waterproof layer, an adhesive layer A, a cold-laid bottom surface layer, an adhesive layer B and a cold-laid surface layer, the waterproof layer penetrates into the original pavement, the adhesive layer A is in complete contact with the waterproof layer, the cold-laid bottom surface layer is paved on the side of the adhesive layer A away from the waterproof layer, the adhesive layer B is sprayed on the side of the cold-laid bottom surface layer away from the adhesive layer A, and the cold-laid surface layer is paved on the side of the adhesive layer B away from the cold-laid bottom surface layer.

[0006] Wherein, the waterproof layer is a flexible mortar waterproof layer, and the flexible mortar waterproof layer is prepared by mixing two-component waterproof materials.

[0007] Wherein, the bonding layer A and the bonding layer B are both epoxy resin asphalt bonding layers.

[0008] The cold-laid bottom surface layer is formed by mixing coarse aggregate, IC-type SBS modified asphalt and environmentally friendly warm mix modifier.

[0009] Wherein, the cold-laid bottom surface layer is of coarse particle size, and the nominal maximum particle size is 26.5 mm.

[0010] Wherein, the thickness of the cold-laid bottom surface layer is 5cm-10cm.

[0011] The cold paving layer is a mixture of fine aggregate, IC type SBS modified asphalt and environmentally friendly warm mix modifier.

[0012] Wherein, the cold-paved surface layer is of fine particle size, and the nominal maximum particle size is 13.2 mm.

[0013] Wherein, the thickness of the cold-paved surface layer is 3 cm.

[0014] The utility model discloses a winter pavement structure, wherein the waterproof layer penetrates into the interior of the original pavement to prevent moisture from penetrating into the original pavement, the adhesive layer A is in full contact with the waterproof layer to enhance the bonding strength with the original pavement; the cold-laid bottom surface layer is paved on the adhesive layer A, and the cold-laid bottom surface layer is a layer that bears and disperses loads; the adhesive layer B is sprayed on the cold-laid bottom surface layer to enhance the bonding strength of the cold-laid bottom surface layer; the cold-laid surface layer is paved on the adhesive layer B, and the cold-laid surface layer is waterproof and has good friction, is not easy to slip, and has a smooth surface. The surface is flat without any unevenness, and it resists external corrosion and pollution, and improves the overall image of the road surface. The utility model has a simple structure, low difficulty in winter construction, fast construction speed, short maintenance time, fast traffic, and a stronger bond with the original road surface. At the same time, the overall image of the road surface is improved, which solves the technical problem that in the prior art, the temperature changes in the four seasons in the northern region are more obvious, but the construction units, in order to speed up the construction progress, do not hesitate to work against the wind at the risk of road surface diseases, which often causes serious cracking, slurry and other diseases of the road surface, which seriously affects the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the winter pavement structure of the utility model.

[0017] 1-pavement, 2-waterproof layer, 3-adhesive layer A, 4-cold-laid bottom layer, 5-adhesive layer B, 6-cold-laid surface layer. DETAILED DESCRIPTION

[0018] See also Figure 1 ,in Figure 1 It is a structural schematic diagram of the winter pavement structure of the utility model.

[0019] The utility model provides a winter pavement structure, comprising a waterproof layer 2, an adhesive layer A3, a cold-laid bottom surface layer 4, an adhesive layer B5 and a cold-laid surface layer 6, wherein the waterproof layer 2 penetrates into the interior of the original pavement 1, the adhesive layer A3 is in complete contact with the waterproof layer 2, the cold-laid bottom surface layer 4 is paved on a side of the adhesive layer A3 away from the waterproof layer 2, the adhesive layer B5 is sprayed on a side of the cold-laid bottom surface layer 4 away from the adhesive layer A3, and the cold-laid surface layer 6 is paved on a side of the adhesive layer B5 away from the cold-laid bottom surface layer 4;

[0020] The waterproof layer 2 is a flexible mortar waterproof layer 2, and the flexible mortar waterproof layer 2 is prepared by mixing two-component waterproof materials;

[0021] The bonding layer A 3 and the bonding layer B 5 are both epoxy resin asphalt bonding layers;

[0022] The cold-laid bottom surface layer 4 is made of a mixture of coarse aggregate, IC-type SBS modified asphalt, and environmentally friendly warm mix modifier;

[0023] The cold-laid bottom surface layer 4 is coarse-grained, with a nominal maximum particle size of 26.5 mm and a thickness of 5 cm-10 cm, preferably 8 cm;

[0024] The cold paving layer 6 is a mixture of fine aggregate, IC type SBS modified asphalt, and environmentally friendly warm mix modifier;

[0025] The cold paving layer 6 has a fine particle size, a nominal maximum particle size of 13.2 mm, and a thickness of 3 cm.

[0026] According to this specific embodiment, the waterproof layer 2 penetrates into the original road surface 1 to prevent moisture from penetrating into the original road surface 1. The bonding layer A 3 is in full contact with the waterproof layer 2 to enhance the bonding strength with the original road surface 1. The cold-laid bottom surface layer 4 is paved on the bonding layer A 3. The cold-laid bottom surface layer 4 is a layer that bears and disperses the load. The bonding layer B 5 is sprayed on the cold-laid bottom surface layer 4 to enhance the bonding strength of the cold-laid bottom surface layer 4; the cold-laid surface layer 6 is paved on the bonding layer B5. The cold-laid surface layer 6 is waterproof and has good friction, is not easy to slip, has a flat surface, no unevenness, resists external corrosion and pollution, and improves the overall image of the road surface 1. The utility model has a simple structure, is less difficult to construct in winter, has a fast construction speed, a short maintenance time, and is fast to open to traffic. It is more firmly bonded to the original road surface 1, and the overall image of the road surface 1 is improved. It solves the technical problem in the prior art that the temperature changes in the four seasons in the northern region are more obvious, but the construction unit, in order to speed up the construction progress, does not hesitate to risk the road surface 1 to cause diseases and work against the wind, which often causes serious cracking, slurry and other diseases of the road surface 1, which has a serious impact on the construction quality.

[0027] The specific construction method of the winter pavement structure is as follows:

[0028] 1. Clean the original road surface 1, use high-pressure cleaning equipment to clean the road surface 1 completely, then apply waterproof material, and evenly apply flexible mortar on the surface of the original road surface 1 to form the waterproof layer 2;

[0029] 2. Use a spraying device to spray epoxy resin asphalt on the surface of the waterproof layer 2 to form the bonding layer A 3. Wait for the bonding layer A 3 to be slightly air-dried. Before it is dry, lay the cold-laid bottom surface layer 4. The thickness of the cold-laid bottom surface layer 4 is 8 cm.

[0030] 3. One hour after the cold-laid bottom surface layer 4 is constructed, epoxy resin asphalt is sprayed on the cold-laid bottom surface layer 4 to form a bonding layer B5. Similarly, when the bonding layer B5 is slightly air-dried, the cold-laid surface layer 6 is paved before it is dried. The thickness of the cold-laid surface layer 6 is 3 cm.

[0031] 4. Traffic can be opened 2 hours after the construction of the cold paving layer 6 is completed.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A winter pavement structure, characterized in that: It includes a waterproof layer, an adhesive layer A, a cold-laid bottom surface layer, an adhesive layer B and a cold-laid surface layer, the waterproof layer penetrates into the original road surface, the adhesive layer A is in complete contact with the waterproof layer, the cold-laid bottom surface layer is paved on the side of the adhesive layer A away from the waterproof layer, the adhesive layer B is sprayed on the side of the cold-laid bottom surface layer away from the adhesive layer A, and the cold-laid surface layer is paved on the side of the adhesive layer B away from the cold-laid bottom surface layer.

2. The winter pavement structure according to claim 1, characterized in that: The waterproof layer is a flexible mortar waterproof layer, and the flexible mortar waterproof layer is prepared by mixing two-component waterproof materials.

3. The winter pavement structure according to claim 2, characterized in that: The bonding layer A and the bonding layer B are both epoxy resin asphalt bonding layers.

4. The winter pavement structure according to claim 3, characterized in that: The cold-laid bottom surface layer is formed by mixing coarse aggregate, IC type SBS modified asphalt and environmentally friendly warm mix modifier.

5. The winter pavement structure according to claim 4, characterized in that: The cold-laid bottom surface layer is coarse-grained, with a nominal maximum particle size of 26.5 mm.

6. The winter pavement structure according to claim 5, characterized in that: The thickness of the cold-laid bottom surface layer is 5cm-10cm.

7. The winter pavement structure according to claim 6, characterized in that: The cold paving layer is formed by mixing fine aggregate, IC type SBS modified asphalt and environmentally friendly warm mix modifier.

8. The winter pavement structure according to claim 7, characterized in that: The cold paving layer is fine-grained, with a nominal maximum particle size of 13.2 mm.

9. The winter pavement structure according to claim 8, characterized in that: The thickness of the cold paving layer is 3 cm.

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