Wear-resistant drainage type recycled asphalt pavement structure of municipal road

Abstract

The utility model discloses a municipal road wear-resistant drainage type recycled asphalt pavement structure which comprises a wearing layer, a recycled material layer is arranged on the inner layer of the wearing layer, a surface layer is arranged on the inner layer of the recycled material layer, a base layer is arranged on the inner layer of the surface layer, a cushion layer is arranged on the inner layer of the base layer, and a tamping layer is arranged on the inner layer of the cushion layer. The surface layer comprises a fine material layer, a middle material layer is arranged on the inner side of the fine material layer, and a coarse material layer is arranged on the inner side of the middle material layer. According to the recycled asphalt pavement, the recycled material layer is designed, so that the existing asphalt pavement material is conveniently recycled, the requirement on new raw materials is reduced, the carbon emission is reduced, the effective utilization of resources is realized, the compactness of the pavement is conveniently improved through the surface layer, the base layer and the cushion layer, and the quality of the pavement is conveniently improved, so that the service life of the whole pavement is prolonged; and by designing the inclined plane, the well lid and the drainage pipeline, drainage is facilitated, and the use comfort is high.

Description

Technical Field

[0001] The utility model relates to the technical field of recycled asphalt pavement, in particular to a wear-resistant and drainage type recycled asphalt pavement structure for municipal roads. Background Technique

[0002] Asphalt recycled pavement is a resource-saving and environmentally friendly sustainable pavement construction technology used for repairing and maintaining road surfaces. It reduces the demand for new raw materials, lowers carbon emissions, and realizes the effective utilization of resources by recycling and reusing existing asphalt pavement materials. Through asphalt recycling technology, the efficient recycling of original pavement materials can be achieved, reducing project costs, decreasing the demand for new raw materials, and simultaneously reducing waste generation and environmental impact. It is a sustainable pavement construction method and is adopted by more and more countries and regions.

[0003] The base layer of the existing asphalt recycled pavement is compacted and filled with asphalt concrete. The solidified asphalt concrete is not conducive to drainage, easily causing a large amount of water accumulation on the road, resulting in waterlogging and affecting its use.

[0004] Therefore, in view of this, in response to the deficiencies of the existing structure, the applicant proposes a wear-resistant and drainage type recycled asphalt pavement structure for municipal roads to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wear-resistant and drainage type recycled asphalt pavement structure for municipal roads, by adding a strengthened flame-retardant layer outside the traditional metal sheath to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a wear-resistant and drainage type recycled asphalt pavement structure for municipal roads, including a wearing course, an inner layer of the wearing course is provided with a recycled material layer, an inner layer of the recycled material layer is provided with a surface layer, an inner layer of the surface layer is provided with a base layer, an inner layer of the base layer is provided with a cushion layer, and an inner layer of the cushion layer is provided with a compacted layer. The surface layer includes a fine aggregate layer, an inner side of the fine aggregate layer is provided with a medium aggregate layer, and an inner side of the medium aggregate layer is provided with a coarse aggregate layer.

[0007] Preferably, the wearing course is emulsified asphalt oil, sprayed on the surface of the recycled material layer.

[0008] Preferably, the recycled material layer is compacted and filled with a mixed material of asphalt recycled material, sand, aggregate, and concrete, and the lower side of the recycled material layer is closely attached to the upper side of the surface layer.

[0009] Preferably, the fine aggregate layer, the medium aggregate layer, and the coarse aggregate layer are compacted and filled with asphalt blocks of different sizes and specifications. The upper side of the fine aggregate layer is closely attached to the lower side of the recycled material layer, and the lower side of the coarse aggregate layer is closely attached to the upper side of the base layer.

[0010] Preferably, the base layer is compacted and filled with modified emulsified asphalt, the upper side of the base layer is in close contact with the lower side of the surface layer, and the lower side of the base layer is in close contact with the upper side of the cushion layer.

[0011] Preferably, the cushion layer is compacted and filled with natural gravel and crushed stone, the upper side of the cushion layer is in close contact with the base layer, and the lower side of the cushion layer is in close contact with the upper side of the compacted layer.

[0012] Preferably, the compacted layer is a soil foundation compacted by heavy objects, and the upper side of the compacted layer is in close contact with the lower side of the cushion layer.

[0013] Preferably, the top surface of the wear layer is provided with a slope, and a manhole cover is removably installed on the outer surface of one side of the slope, and a drainage pipe is removably installed on the bottom surface of the manhole cover, and one end of the drainage pipe away from the manhole cover is fixedly penetrated through the top surface of the compacted layer and extends to the interior of the compacted layer, an underground pipe is pre-buried inside the compacted layer, and the inner surface of one side of the underground pipe is fixedly connected to one end of the drainage pipe extending to the interior of the compacted layer.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model facilitates the recycling and reuse of existing asphalt pavement materials by designing a recycled material layer, reduces the demand for new raw materials, reduces carbon emissions, and realizes the effective use of resources. It facilitates improving the compactness of the pavement through the surface layer, base layer and cushion layer, and improves the quality of the pavement, thereby increasing the overall service life of the pavement.

[0016] 2. The utility model facilitates the drainage of water on the outer surface of the wearing layer into the drainage pipe by designing the inclined surface and the manhole cover. The water in the drainage pipe is convenient to enter the underground pipe, which will facilitate drainage, avoid waterlogging, and improve the comfort of use.

[0017] 3. The utility model designs a wearing layer, and the wearing layer is emulsified asphalt oil. Emulsified asphalt oil is an asphalt emulsion formed by dispersing viscous asphalt in water containing an emulsifier and a stabilizer in a droplet state after heat melting and mechanical action. This emulsion has the characteristics of oil-in-water, so that the road asphalt originally used at high temperature can be liquefied at room temperature, thereby having a lower viscosity and good fluidity. Therefore, it can be sprayed on the surface of the recycled material layer to form a fog seal layer with high wear resistance, which is convenient for improving the overall wear resistance of the road surface and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 is a schematic diagram of the overall disassembly structure of the present utility model;

[0021] Figure 4 is a schematic diagram of the overall sectional plane structure of the present utility model;

[0022] Figure 5 is a schematic diagram of the three-dimensional sectional structure of the surface layer of the present utility model.

[0023] In the figure: 1, wearing layer; 2, recycled material layer; 3, surface layer; 4, base layer; 5, cushion layer; 6, tamping layer; 7, manhole cover; 8, drainage pipeline; 9, underground pipeline; 10, inclined plane; 30, fine material layer; 31, medium material layer; 32, coarse material layer. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Such as Figures 1-5As shown, a wear-resistant and drainable recycled asphalt pavement structure for a municipal road comprises a wear layer 1, a recycled material layer 2 is provided in the inner layer of the wear layer 1, a surface layer 3 is provided in the inner layer of the recycled material layer 2, a base layer 4 is provided in the inner layer of the surface layer 3, a cushion layer 5 is provided in the inner layer of the base layer 4, and a compaction layer 6 is provided in the inner layer of the cushion layer 5, and the surface layer 3 comprises a fine material layer 30, a middle material layer 31 is provided on the inner side of the fine material layer 30, and a coarse material layer 32 is provided on the inner side of the middle material layer 31, the wear layer 1 is emulsified asphalt oil, sprayed on the surface of the recycled material layer 2, the recycled material layer 2 is compacted and filled with a mixture of asphalt recycled materials and sand, gravel, aggregate and concrete, the lower side of the recycled material layer 2 is closely attached to the upper side of the surface layer 3, the fine material layer 30, the middle material layer 31 and the coarse material layer 32 are compacted and filled with asphalt blocks of different sizes, and the upper side of the fine material layer 30 is closely attached to The lower side of the recycled material layer 2 and the lower side of the coarse material layer 32 are tightly attached to the upper side of the base layer 4, the base layer 4 is compacted and filled with modified emulsified asphalt, the upper side of the base layer 4 is tightly attached to the lower side of the surface layer 3, the lower side of the base layer 4 is tightly attached to the upper side of the cushion layer 5, the cushion layer 5 is compacted and filled with natural gravel and crushed stone, the upper side of the cushion layer 5 is tightly attached to the base layer 4, the lower side of the cushion layer 5 is tightly attached to the upper side of the rammed layer 6, the rammed layer 6 is a soil foundation compacted by heavy objects, the upper side of the rammed layer 6 is tightly attached to the lower side of the cushion layer 5, by designing the recycled material layer 2, it is convenient to recycle and reuse existing asphalt pavement materials, reduce the demand for new raw materials, reduce carbon emissions, and achieve effective utilization of resources, through the surface layer 3, the base layer 4 and the cushion layer 5, it is convenient to improve the compactness of the road surface, and it is convenient to improve the quality of the road surface, thereby increasing the overall service life of the road surface.

[0026] The top surface of the wearing layer 1 is provided with a slope 10, and a manhole cover 7 is removed and installed on the outer surface of one side of the slope 10, and a drainage pipe 8 is removed and installed on the bottom surface of the manhole cover 7. The end of the drainage pipe 8 away from the manhole cover 7 is fixedly penetrated through the top surface of the compacted layer 6 and extends to the inside of the compacted layer 6. An underground pipe 9 is pre-buried in the inside of the compacted layer 6, and the inner surface of one side of the underground pipe 9 is fixedly connected with the end of the drainage pipe 8 extending to the inside of the compacted layer 6. The slope 10 and the manhole cover 7 facilitate the drainage of water on the outer surface of the wearing layer 1 into the drainage pipe 8, and the water in the drainage pipe 8 is convenient to enter the underground pipe 9, which will facilitate drainage, avoid waterlogging, and improve the comfort of use.

[0027] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A wear-resistant and drainage-type regenerated asphalt pavement structure for a municipal road, comprising a wearing layer (1), characterized in that: The inner layer of the wear layer (1) is provided with a recycled material layer (2), the inner layer of the recycled material layer (2) is provided with a surface layer (3), the inner layer of the surface layer (3) is provided with a base layer (4), the inner layer of the base layer (4) is provided with a cushion layer (5), and the inner layer of the cushion layer (5) is provided with a compaction layer (6); The surface layer (3) comprises a fine material layer (30), a medium material layer (31) is provided on the inner side of the fine material layer (30), and a coarse material layer (32) is provided on the inner side of the medium material layer (31).

2. The wear-resistant and drainage-type regenerated asphalt pavement structure for municipal roads according to claim 1 is characterized in that: The wear layer (1) is emulsified asphalt oil, which is sprayed on the surface of the recycled material layer (2).

3. The wear-resistant and drainage-type regenerated asphalt pavement structure for municipal roads according to claim 1 is characterized in that: The lower side of the recycled material layer (2) is in close contact with the upper side of the surface layer (3).

4. The wear-resistant and drainage-type regenerated asphalt pavement structure for municipal roads according to claim 1 is characterized in that: The fine material layer (30), the medium material layer (31) and the coarse material layer (32) are compacted and filled with asphalt blocks of different sizes and specifications. The upper side of the fine material layer (30) is in close contact with the lower side of the recycled material layer (2), and the lower side of the coarse material layer (32) is in close contact with the upper side of the base layer (4).

5. The wear-resistant and drainage-type regenerated asphalt pavement structure for municipal roads according to claim 1 is characterized in that: The base layer (4) is compacted and filled with modified emulsified asphalt, the upper side of the base layer (4) is in close contact with the lower side of the surface layer (3), and the lower side of the base layer (4) is in close contact with the upper side of the cushion layer (5).

6. The wear-resistant and drainage-type regenerated asphalt pavement structure for municipal roads according to claim 1 is characterized in that: The upper side of the cushion layer (5) is in close contact with the base layer (4), and the lower side of the cushion layer (5) is in close contact with the upper side of the compacted layer (6).

7. The wear-resistant and drainage-type regenerated asphalt pavement structure for municipal roads according to claim 1 is characterized in that: The compacted layer (6) is a soil foundation compacted by a heavy object, and the upper side of the compacted layer (6) is in close contact with the lower side of the cushion layer (5).

8. The wear-resistant and drainage-type regenerated asphalt pavement structure for municipal roads according to claim 1 is characterized in that: The top surface of the wear layer (1) is provided with an inclined surface (10), and a manhole cover (7) is detachably mounted on the outer surface of one side of the inclined surface (10), and a drainage pipe (8) is detachably mounted on the bottom surface of the manhole cover (7), and one end of the drainage pipe (8) away from the manhole cover (7) is fixedly penetrated through the top surface of the compacted layer (6) and extends to the inside of the compacted layer (6), and an underground pipe (9) is pre-buried inside the compacted layer (6), and one inner surface of the underground pipe (9) is fixedly connected to one end of the drainage pipe (8) extending to the inside of the compacted layer (6).

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