Asphalt pavement structure suitable for high-humidity-heat environment

Abstract

The utility model relates to an asphalt pavement structure suitable for a highly humid and hot environment, which belongs to the technical field of asphalt pavement structures and comprises a base layer, an anti-humid and hot mechanism is arranged on the outer wall of the base layer, a rubber asphalt layer is arranged at the top of the base layer, and a high-modulus asphalt mixture layer is arranged at the top of the rubber asphalt layer. A glass fiber grating layer is arranged at the top of the high-modulus asphalt mixture layer, and a warm mix asphalt mixture is arranged at the top of the glass fiber grating layer. According to the asphalt pavement structure suitable for the highly humid and hot environment, underground water or water on a pavement is prevented from entering the pavement structure under the action of the waterproof layer, so that the damage to the pavement caused by water damage is reduced, and the pavement is prevented from being damaged by water under the action of the rubber asphalt layer, the high-modulus asphalt mixture layer, the glass fiber grating layer and the warm mix asphalt mixture; the rigidity of the asphalt pavement is improved, pavement cracks are reduced, the durability of the pavement is improved, and the pavement noise can be reduced, so that the asphalt pavement can be used in a high-damp-heat environment.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavement structures, in particular to an asphalt pavement structure suitable for high-humidity and high-heat environments. Background Art

[0002] Asphalt pavement structure refers to a pavement system composed of different layers of materials, designed to withstand traffic loads and disperse them into the foundation while providing a smooth, safe and durable driving surface. Asphalt mixture composition, providing good driving comfort and skid resistance. The thickness and material selection of asphalt pavement structure depends on the expected traffic volume, environmental conditions and engineering economy.

[0003] At present, when asphalt pavement is used in areas with high humidity and heat, the asphalt mixture is easy to soften under high temperature, and it is easy to produce permanent deformation when subjected to repeated loads, forming rutting, affecting the flatness and driving comfort of the road surface. At the same time, high temperature will accelerate the aging process of asphalt, causing the asphalt to harden and crack, thereby reducing its flexibility and adhesion, affecting the durability of the road surface. In a high humidity and heat environment, moisture can easily invade the interface between asphalt and aggregate, weakening the adhesion between the two, causing asphalt peeling and loose aggregate, and then forming potholes. Therefore, an asphalt pavement structure suitable for a high humidity and heat environment is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an asphalt pavement structure suitable for high humidity and heat environments, which has the advantages of improving the moisture and heat resistance of the asphalt pavement, and solves the problem that in high humidity and heat environments, moisture easily invades the interface between asphalt and aggregate, weakens the adhesion between the two, causes asphalt peeling and loose aggregate, and then forms potholes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an asphalt pavement structure suitable for high-humidity and heat environment, comprising a base layer, the outer wall of which is provided with an anti-humidity and heat mechanism;

[0006] A rubber asphalt layer is provided on the top of the base layer, a high modulus asphalt mixture layer is provided on the top of the rubber asphalt layer, a glass fiber grid layer is provided on the top of the high modulus asphalt mixture layer, a warm mix asphalt mixture is provided on the top of the glass fiber grid layer, a stress absorption layer is provided on the top of the warm mix asphalt mixture, a reflective heat insulation layer is provided on the top of the stress absorption layer, and a waterproof layer is provided on the top of the reflective heat insulation layer and on the bottom of the base layer.

[0007] Furthermore, a plurality of reinforcing steel bars are provided inside the base layer, and the plurality of reinforcing steel bars are equidistantly distributed.

[0008] Furthermore, the thickness of the waterproof layer is 1 cm, the thickness of the rubber asphalt layer is 3 cm, the thickness of the high-modulus asphalt mixture layer is 5 cm, the thickness of the fiberglass grid layer is 1 cm, the thickness of the warm mix asphalt mixture is 4 cm, the thickness of the stress absorption layer is 2 cm, and the thickness of the reflective heat insulation layer is 3 mm.

[0009] Furthermore, the base course, rubber asphalt layer, high-modulus asphalt mixture layer, fiberglass grid layer, warm mix asphalt mixture, stress absorption layer, and reflective heat insulation layer are located between two waterproof layers.

[0010] Furthermore, the base course, rubber asphalt layer, high-modulus asphalt mixture layer, fiberglass grid layer, warm mix asphalt mixture, stress absorption layer, reflective heat insulation layer, and waterproof layer have the same width.

[0011] Furthermore, an anti-slip layer is provided on the top of the top waterproof layer.

[0012] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0013] This asphalt pavement structure applicable to high-humidity and high-temperature environments prevents groundwater or water on the road surface from entering the road surface structure through the action of the waterproof layer, thereby reducing the damage to the road surface caused by water damage. Through the action of the rubber asphalt layer, high-modulus asphalt mixture layer, fiberglass grid layer, and warm mix asphalt mixture, the stiffness of the asphalt pavement is improved, road surface cracks are reduced, the durability of the road surface is improved, and road surface noise can be reduced, so that the asphalt pavement can be used in high-humidity and high-temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is the present utility model Figure 1 combined structural schematic diagram;

[0016] Figure 3 is a schematic diagram of the internal structure of the base course of the present utility model.

[0017] In the figure: 1, base course; 2, rubber asphalt layer; 3, high-modulus asphalt mixture layer; 4, fiberglass grid layer; 5, warm mix asphalt mixture; 6, stress absorption layer; 7, reflective heat insulation layer; 8, waterproof layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] 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 embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1 to 3 , an asphalt pavement structure applicable to high-humidity and high-temperature environments in this embodiment, includes a base layer 1, and an anti-humidity and heat mechanism is provided on the outer wall of the base layer 1.

[0020] A plurality of reinforcing steel bars are provided inside the base layer 1, and the plurality of reinforcing steel bars are evenly distributed.

[0021] A rubber asphalt layer 2 is provided on the top of the base layer 1, a high-modulus asphalt mixture layer 3 is provided on the top of the rubber asphalt layer 2, a fiberglass grille layer 4 is provided on the top of the high-modulus asphalt mixture layer 3, a warm mix asphalt mixture 5 is provided on the top of the fiberglass grille layer 4, a stress absorption layer 6 is provided on the top of the warm mix asphalt mixture 5, a reflective heat insulation layer 7 is provided on the top of the stress absorption layer 6, and waterproof layers 8 are provided on the top of the reflective heat insulation layer 7 and the bottom of the base layer 1.

[0022] The thickness of the waterproof layer 8 is 1 cm, the thickness of the rubber asphalt layer 2 is 3 cm, the thickness of the high-modulus asphalt mixture layer 3 is 5 cm, the thickness of the fiberglass grille layer 4 is 1 cm, the thickness of the warm mix asphalt mixture 5 is 4 cm, the thickness of the stress absorption layer 6 is 2 cm, the thickness of the reflective heat insulation layer 7 is 3 mm. The base layer 1, the rubber asphalt layer 2, the high-modulus asphalt mixture layer 3, the fiberglass grille layer 4, the warm mix asphalt mixture 5, the stress absorption layer 6 and the reflective heat insulation layer 7 are located between the two waterproof layers 8. The base layer 1, the rubber asphalt layer 2, the high-modulus asphalt mixture layer 3, the fiberglass grille layer 4, the warm mix asphalt mixture 5, the stress absorption layer 6, the reflective heat insulation layer 7 and the waterproof layer 8 have the same width, and an anti-slip layer is provided on the top of the top waterproof layer 8.

[0023] In this embodiment, by providing an anti-slip layer on the top surface of the waterproof layer 8, basalt fibers or corundum scattered on the surface of the waterproof layer 8 can improve the friction coefficient of the road surface and increase driving safety.

[0024] In this embodiment, the strength of the overall base layer 1 is improved by the reinforcing steel bars in the base layer 1.

[0025] In this embodiment, the waterproof layer 8 uses a polymer-modified asphalt coating, which has good adhesion and ductility and can adapt to the deformation of the base layer 1.

[0026] In this embodiment, the rubber asphalt layer 2 is prepared by incorporating waste tire rubber powder into asphalt, and this asphalt mixture has good elasticity and fatigue resistance.

[0027] In this embodiment, the fiberglass grid layer 4 is a reinforcing material with high tensile strength and low elongation. Laying it between asphalt layers can disperse the load and reduce the reflective cracks in the asphalt layer.

[0028] In this embodiment, the warm mix asphalt mixture 5 technology reduces the construction temperature of the asphalt mixture while maintaining its performance.

[0029] In this embodiment, the stress absorption layer 6 is usually composed of rubber-modified asphalt and is used to absorb and disperse the stress caused by cracks or other irregularities in the base layer 1.

[0030] In this embodiment, the reflective insulation layer 7 has a coating with high reflectivity, which can reduce the heat absorption of solar radiation and lower the road surface temperature.

[0031] In this embodiment, the high modulus asphalt mixture layer 3 has high stiffness and can resist the deformation caused by large traffic loads and high temperatures.

[0032] The working principle of the above embodiment is as follows:

[0033] First, the waterproof layer 8 is filled and covered on the top of the foundation, then the base layer 1 is filled and covered on the top of the waterproof layer 8, then the high modulus asphalt mixture layer 3 is filled and covered on the top of the waterproof layer 8, then the fiberglass grid layer 4 is filled and covered on the top of the high modulus asphalt mixture layer 3, then the warm mix asphalt mixture 5 is filled and covered on the top of the fiberglass grid layer 4, then the stress absorption layer 6 is filled and covered on the top of the warm mix asphalt mixture 5, then the reflective insulation layer 7 is filled and covered on the top of the stress absorption layer 6, and finally the waterproof layer 8 is filled and covered on the top of the reflective insulation layer 7.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An asphalt pavement structure suitable for high-humidity and high-heat environments, comprising a base layer (1), characterized in that: The outer wall of the base layer (1) is provided with an anti-humidity and heat mechanism; A rubber asphalt layer (2) is provided on the top of the base layer (1), a high modulus asphalt mixture layer (3) is provided on the top of the rubber asphalt layer (2), a glass fiber grid layer (4) is provided on the top of the high modulus asphalt mixture layer (3), a warm mix asphalt mixture (5) is provided on the top of the glass fiber grid layer (4), a stress absorption layer (6) is provided on the top of the warm mix asphalt mixture (5), a reflective heat insulation layer (7) is provided on the top of the stress absorption layer (6), and a waterproof layer (8) is provided on the top of the reflective heat insulation layer (7) and the bottom of the base layer (1).

2. The asphalt pavement structure suitable for high-humidity and high-heat environment according to claim 1, characterized in that: A plurality of reinforcing steel bars are arranged inside the base layer (1), and the plurality of reinforcing steel bars are distributed at equal distances.

3. The asphalt pavement structure suitable for high-humidity and high-heat environment according to claim 1, characterized in that: The thickness of the waterproof layer (8) is one centimeter, the thickness of the rubber asphalt layer (2) is three centimeters, the thickness of the high modulus asphalt mixture layer (3) is five centimeters, the thickness of the glass fiber grid layer (4) is one centimeter, the thickness of the warm mix asphalt mixture (5) is four centimeters, the thickness of the stress absorption layer (6) is two centimeters, and the thickness of the reflective heat insulation layer (7) is three millimeters.

4. The asphalt pavement structure suitable for high-humidity and high-heat environment according to claim 1, characterized in that: The base layer (1), the rubber asphalt layer (2), the high modulus asphalt mixture layer (3), the glass fiber grid layer (4), the warm mix asphalt mixture (5), the stress absorption layer (6) and the reflective heat insulation layer (7) are located between two waterproof layers (8).

5. The asphalt pavement structure suitable for high-humidity and high-heat environment according to claim 1, characterized in that: The base layer (1), rubber asphalt layer (2), high modulus asphalt mixture layer (3), glass fiber grid layer (4), warm mix asphalt mixture (5), stress absorption layer (6), reflective insulation layer (7) and waterproof layer (8) have the same width.

6. The asphalt pavement structure suitable for high-humidity and high-heat environment according to claim 1, characterized in that: The top of the waterproof layer (8) is provided with an anti-slip layer.

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