Pavement structure additionally paved with asphalt ultra-thin overlay

Abstract

The utility model discloses a pavement structure additionally paved with an ultra-thin asphalt overlay, which structurally comprises a cement stabilized macadam base layer and a cement pavement positioned on the cement stabilized macadam base layer, the cement pavement is provided with an ultra-thin asphalt overlay layer, the ultra-thin asphalt overlay layer is bonded on the cement pavement through a bonding layer, and the ultra-thin asphalt overlay layer is arranged on the cement pavement. The bonding layer is made of modified emulsified asphalt, a drainage groove is further formed in the cement pavement, the drainage groove is used for drainage of the cement pavement, the ultra-thin asphalt overlay layer is made of a modified asphalt material, has durability and anti-aging performance and is used for improving the anti-skid performance of the ultra-thin asphalt overlay layer by arranging anti-skid particles, and the drainage groove is formed in the cement pavement, so that the anti-skid performance of the ultra-thin asphalt overlay layer is improved. In addition, a plate seam is formed and used for being matched with a drainage groove to effectively drain water, the thickness of the asphalt ultrathin overlay layer 3 and the bonding layer 4 after being combined is 1.5-2 cm, the construction period can be shortened through the thickness, and the construction difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to a pavement structure with an asphalt ultra-thin overlay, belonging to the technical field of pavement construction. Background Art

[0002] Asphalt ultra-thin overlay is a new pavement construction method and also an ultra-thin asphalt concrete wearing course technology, mainly used for preventive maintenance of high-grade asphalt or cement pavements and corrective maintenance of minor diseases. However, the current asphalt ultra-thin overlay has insufficient skid resistance and poor drainage capacity, which easily leads to internal water accumulation. Therefore, in view of the above situation, a pavement structure with an asphalt ultra-thin overlay is proposed. Summary of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a pavement structure with an asphalt ultra-thin overlay to solve the existing problems.

[0004] To achieve the above purpose, the utility model is realized by the following technical solutions: A pavement structure with an asphalt ultra-thin overlay, the structure includes a cement stabilized macadam base course and a cement pavement located on the cement stabilized macadam base course. An asphalt ultra-thin overlay layer is provided on the cement pavement, and the asphalt ultra-thin overlay layer is bonded to the cement pavement through a bonding layer. The bonding layer is modified emulsified asphalt. Drainage grooves are also opened on the cement pavement for draining the cement pavement. The asphalt ultra-thin overlay layer is made of modified asphalt material.

[0005] Further, expansion joints are also provided on the cement pavement, and the expansion joints are opened from the drainage grooves to the cement stabilized macadam base course.

[0006] Further, anti-skid particles are provided on the asphalt ultra-thin overlay layer, and the anti-skid particles are laid on the asphalt ultra-thin overlay layer.

[0007] Further, the drainage grooves are filled with permeable asphalt mixture.

[0008] Further, the thickness of the asphalt ultra-thin overlay layer after combination with the bonding layer is 1.5CM - 2CM.

[0009] The beneficial effects of the utility model are:

[0010] The asphalt ultra-thin overlay layer is made of modified asphalt material, has durability and anti-aging performance, and by providing anti-skid particles, it is used to improve the skid resistance of the asphalt ultra-thin overlay layer;

[0011] Drainage grooves are provided, and expansion joints are provided to cooperate with the drainage grooves for effective drainage;

[0012] The thickness after the combination of the ultra-thin asphalt overlay layer 3 and the bonding layer 4 is 1.5 cm - 2 cm, and this thickness can reduce the construction period and the construction difficulty. Description of the Drawings

[0013] Other features, objects, and advantages of the present utility model will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of a pavement structure with an overlaid ultra-thin asphalt overlay for the present utility model.

[0015] In the figure: Cement stabilized macadam base course 1, Cement pavement 2, Ultra-thin asphalt overlay layer 3, Bonding layer 4, Drainage groove 5, Plate joint 6, Anti-skid particles 7, Permeable asphalt mixture 8. Detailed Embodiments

[0016] To make the technical means, creative features, achieved purposes, and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] Please refer to Figure 1 , the present utility model provides a technical solution for a pavement structure with an overlaid ultra-thin asphalt overlay: Its structure includes a cement stabilized macadam base course 1 and a cement pavement 2 located on the cement stabilized macadam base course 1. An ultra-thin asphalt overlay layer 3 is provided on the cement pavement 2. The ultra-thin asphalt overlay layer 3 is bonded to the cement pavement 2 through a bonding layer 4. The bonding layer 4 is a modified emulsified asphalt. Drainage grooves 5 are also provided on the cement pavement 2, and the drainage grooves 5 are used for draining the cement pavement 2;

[0018] Plate joints 6 are also provided on the cement pavement 2. The plate joints 6 are opened from the drainage grooves 5 to the cement stabilized macadam base course 1, and the plate joints are used to improve the drainage performance;

[0019] Anti-skid particles 7 are provided on the ultra-thin asphalt overlay layer 3. The anti-skid particles 7 are laid on the ultra-thin asphalt overlay layer 3, and the anti-skid particles are used to improve the anti-skid performance;

[0020] The drainage grooves 5 are filled with a permeable asphalt mixture 8;

[0021] The thickness after the combination of the ultra-thin asphalt overlay layer 3 and the bonding layer 4 is 1.5 cm - 2 cm. Due to the relatively thin thickness of this ultra-thin asphalt overlay layer, the construction period is short and the construction difficulty is greatly reduced.

[0022] For example, the ultra-thin asphalt overlay layer 3 is an ultra-thin structure, and the anti-skid effect is improved through the anti-skid particles 7. Drainage grooves 5 and plate joints 6 are provided on the cement pavement 2 to increase the drainage effect and prevent water accumulation.

[0023] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pavement structure with an asphalt ultra-thin overlay, the structure comprising a cement stabilized macadam base course (1) and a cement pavement (2) located on the cement stabilized macadam base course (1), and an asphalt ultra-thin overlay layer (3) is provided on the cement pavement (2), characterized in that: The asphalt ultra-thin wearing course (3) is bonded to the cement pavement (2) through a bonding layer (4). The bonding layer (4) is modified emulsified asphalt. A drainage groove (5) is also provided on the cement pavement (2), and the drainage groove (5) is used for draining the cement pavement (2).

2. The pavement structure of an asphalt ultra-thin overlay according to claim 1, characterized in that: A slab joint (6) is also provided on the cement pavement (2), and the slab joint (6) extends from the drainage groove (5) to the cement stabilized macadam base (1).

3. The pavement structure of an asphalt ultra-thin overlay according to claim 1, characterized in that: Anti-skid particles (7) are provided on the asphalt ultra-thin wearing course (3), and the anti-skid particles (7) are laid on the asphalt ultra-thin wearing course (3).

4. A pavement structure for paving an ultra-thin asphalt overlay, according to claim 1, characterized in that: The drainage groove (5) is filled with permeable asphalt mixture (8).

5. The pavement structure of an asphalt ultra-thin overlay according to claim 1, characterized in that: The thickness of the asphalt ultra-thin wearing course (3) after being combined with the bonding layer (4) is 1.5 CM - 2 CM.

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