CN213142686U

CN213142686U - Water damage and track resistant asphalt pavement structure

Info

Publication number: CN213142686U
Application number: CN202021704800.9U
Authority: CN
Inventors: 蔡必挺
Original assignee: Guangdong Xionghui Municipal Public Works Co ltd
Current assignee: Guangdong Xionghui Municipal Public Works Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-05-07
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses an anti rutting bituminous paving structure of water damage resistance has set gradually cling compound top layer, modified emulsified asphalt adhesive coat, anti rutting asphalt concrete layer, pitch connecting layer, stress absorbing layer, roller compacted concrete, gradation rubble, the concrete that permeates water from top to bottom, the thickness on cling compound top layer is 1-5cm, the thickness on stress absorbing layer is 1-3cm, roller compacted concrete's thickness is 20cm, the thickness of gradation rubble is 5-15cm, the thickness of the concrete that permeates water is 10-20 cm. By sequentially arranging 8 layers of materials from top to bottom, the water damage resistance is strong, a communicating gap is formed, and the functions of drainage, skid resistance and noise reduction are met; the modified emulsified asphalt adhesive layer can block rainwater infiltration; the anti-rutting asphalt concrete layer has excellent high-temperature performance and strong anti-rutting capability; the stress absorption layer delays the occurrence of reflection cracks and improves the overall structural performance and durability of the pavement.

Description

Water damage and track resistant asphalt pavement structure

Technical Field

The utility model relates to a highway field especially relates to an anti rutting bituminous pavement structure of water-resistant evil.

Background

At present, asphalt pavements are widely used, have the advantages of comfortable driving, low noise, less dust emission, easy maintenance, convenient maintenance and the like, and become a pavement structure preferentially adopted by high-grade highways. Asphalt pavement refers to various types of pavement that are made by incorporating into mineral materials a road asphalt material. The asphalt binder improves the capability of the paving aggregate to resist damage of traveling vehicles and natural factors to the pavement, and enables the pavement to be smooth, less in dust, impermeable and durable. Accordingly, asphalt pavement is one of the most widely used high-grade pavements in road construction.

However, the existing asphalt pavement has the following defects:

1. the permeable asphalt mixture is used for an abrasion layer, can rapidly drain rainwater on a road surface, and improves the anti-sliding capability, but the permeable asphalt mixture is mostly large in void ratio, can bear the repeated washing of hydrodynamic pressure, and is poor in water damage resistance.

2. The high-pressure stress and the high-temperature area which bear the driving load below the surface layer of the asphalt pavement are required to have excellent anti-rutting performance, and the asphalt pavement in the prior art has poor drainage, is often in a wet and over-wet state, and has insufficient anti-rutting capability and durability.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a water damage resistant and rutting resistant asphalt pavement structure, which can solve the problems of poor water damage resistance and insufficient durability.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the utility model provides an anti-water damage anti-rutting bituminous pavement structure, from top to bottom sets gradually anti-skidding top layer, modified emulsified asphalt adhesion coating, anti-rutting asphalt concrete layer, pitch tie coat, stress absorbing layer, roller compacted concrete, graded broken stone, the concrete that permeates water, the thickness on anti-skidding top layer is 1-5cm, the thickness on stress absorbing layer is 1-3cm, roller compacted concrete's thickness is 20cm, the thickness of graded broken stone is 5-15cm, the thickness of the concrete that permeates water is 10-20 cm.

Further, the thickness of the anti-skid surface layer is 3.5cm, the anti-skid surface layer is thick modified asphalt concrete PAM-13, and the spreading amount of the modified emulsified asphalt adhesive layer is 0.6L/m²The anti-rutting asphaltThe concrete layer is high modulus modified asphalt concrete GAC-20.

Further, the asphalt bond coat is ordinary asphalt concrete GAC-25.

Further, the stress absorbing layer is 1cm thick rubber asphalt SAMI.

Further, the thickness of the anti-skid surface layer is 5cm, the anti-skid surface layer is thick modified asphalt concrete OGFC-16, and the spreading amount of the modified emulsified asphalt adhesive layer is 0.7L/m²The anti-rutting asphalt concrete layer is high-modulus modified asphalt concrete GAC-16.

Further, the asphalt bond coat is ordinary asphalt concrete GAC-20.

Further, the stress absorption layer is high-viscosity modified asphalt SAMI with the thickness of 3 cm.

Further, the thickness of the anti-skid surface layer is 4cm, the anti-skid surface layer is thick modified asphalt concrete OGFC-13, and the spreading amount of the modified emulsified asphalt adhesive layer is 0.8L/m²The anti-rutting asphalt concrete layer is high-modulus modified asphalt concrete GAC-20.

Further, the asphalt bond coat is ordinary asphalt concrete GAC-25.

Further, the stress absorption layer is high-viscosity modified asphalt SAMI with the thickness of 2 cm.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the thickness of the anti-skid surface layer is 1-5cm, the thickness of the stress absorption layer is 1-3cm, the thickness of the roller compacted concrete is 20cm, the thickness of the graded broken stone is 5-15cm, and the thickness of the pervious concrete is 10-20 cm. By sequentially arranging 8 layers of materials from top to bottom, the water damage resistance is strong, a communicating gap is formed, and the functions of drainage, skid resistance and noise reduction are met; the modified emulsified asphalt adhesive layer can block rainwater infiltration; the anti-rutting asphalt concrete layer has excellent high-temperature performance and strong anti-rutting capability; the stress absorption layer delays the occurrence of reflection cracks and improves the overall structural performance and durability of the pavement.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a structural diagram of a preferred embodiment of the structure of the water damage and rutting resistant asphalt pavement of the present invention.

In the figure: 1. an anti-slip surface layer; 2. modifying the emulsified asphalt adhesive layer; 3. an anti-rutting asphalt concrete layer; 4. an asphalt bond coat; 5. a stress absorbing layer; 6. rolling the concrete; 7. grading broken stone; 8. and (5) pervious concrete.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the anti-water damage and anti-rutting asphalt pavement structure is sequentially provided with an anti-skid surface layer 1, a modified emulsified asphalt adhesive layer 2, an anti-rutting asphalt concrete layer 3, an asphalt connecting layer 4, a stress absorbing layer 5, rolled concrete 6, graded broken stones 7 and pervious concrete 8 from top to bottom, wherein the thickness of the anti-skid surface layer 1 is 1-5cm, the thickness of the stress absorbing layer 5 is 1-3cm, the thickness of the rolled concrete 6 is 20cm, the thickness of the graded broken stones 7 is 5-15cm, and the thickness of the pervious concrete 8 is 10-20 cm. By sequentially arranging 8 layers of materials from top to bottom, the water damage resistance is strong, a communicating gap is formed, and the functions of drainage, skid resistance and noise reduction are met; the modified emulsified asphalt adhesive layer 2 can block rainwater infiltration; the anti-rutting asphalt concrete layer 3 has excellent high-temperature performance and strong anti-rutting capability; the stress absorption layer 5 delays the occurrence of reflection cracks and improves the overall structural performance and durability of the pavement.

Preferably, in the first embodiment, the anti-rutting asphalt concrete layer 3 adopts high-modulus modified asphalt and is added with basalt fibers; the thickness of the anti-skid surface layer 1 is 3.5cm, the anti-skid surface layer 1 is thick modified asphalt concrete PAM-13, and the spreading amount of the modified emulsified asphalt adhesive layer 2 is 0.6L/m²The anti-rutting asphalt concrete layer 3 is high-modulus modified asphalt concrete GAC-20. The pervious concrete 8 plays a role in draining water, preventing pollution and improving the performance of the roadbed. Effectively reduce the permanent deformation of the roadbed and improve the deformation resistance of the roadbed. The asphalt coupling layer 4 is ordinary asphalt concrete GAC-25. The stress absorption layer 5 is rubber asphalt SAMI with the thickness of 1 cm.

Preferably, in the second embodiment, the thickness of the anti-skid surface layer 1 is 5cm, the anti-skid surface layer 1 is thick modified asphalt concrete OGFC-16, and the spreading amount of the modified emulsified asphalt adhesive layer 2 is 0.7L/m²The anti-rutting asphalt concrete layer 3 is high-modulus modified asphalt concrete GAC-16. The asphalt coupling layer 4 is ordinary asphalt concrete GAC-20. The stress absorption layer 5 is high-viscosity modified asphalt SAMI with the thickness of 3 cm.

Preferably, in the third embodiment, the thickness of the anti-skid surface layer 1 is 4cm, the anti-skid surface layer 1 is thick modified asphalt concrete OGFC-13, and the spraying of the modified emulsified asphalt adhesive layer 2The cloth amount is 0.8L/m²The anti-rutting asphalt concrete layer 3 is high-modulus modified asphalt concrete GAC-20. The asphalt coupling layer 4 is ordinary asphalt concrete GAC-25. The stress absorption layer 5 is high-viscosity modified asphalt SAMI with the thickness of 2 cm. The structural design is reasonable, and the structure is rigid and flexible, and is a durable pavement structure.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The anti-water damage and anti-rutting asphalt pavement structure is characterized in that an anti-skid surface layer, a modified emulsified asphalt adhesive layer, an anti-rutting asphalt concrete layer, an asphalt joint layer, a stress absorption layer, roller compacted concrete, graded broken stones and pervious concrete are sequentially arranged from top to bottom, wherein the thickness of the anti-skid surface layer is 1-5cm, the thickness of the stress absorption layer is 1-3cm, the thickness of the roller compacted concrete is 20cm, the thickness of the graded broken stones is 5-15cm, and the thickness of the pervious concrete is 10-20 cm.

2. The water damage resistant and rutting resistant asphalt pavement structure of claim 1, wherein: the thickness of the anti-skid surface layer is 3.5cm, the anti-skid surface layer is thick modified asphalt concrete PAM-13, and the spreading amount of the modified emulsified asphalt adhesive layer is 0.6L/m²The anti-rutting asphalt concrete layer is high-modulus modified asphalt concrete GAC-20.

3. The water damage resistant and rutting resistant asphalt pavement structure of claim 2, wherein: the asphalt coupling layer is ordinary asphalt concrete GAC-25.

4. The water damage resistant and rutting resistant asphalt pavement structure of claim 2, wherein: the stress absorption layer is rubber asphalt SAMI with the thickness of 1 cm.

5. The water damage resistant and rutting resistant asphalt pavement structure of claim 1, wherein: the thickness of the anti-skid surface layer is 5cm, the anti-skid surface layer is thick modified asphalt concrete OGFC-16, and the spreading amount of the modified emulsified asphalt adhesive layer is 0.7L/m²The anti-rutting asphalt concrete layer is high-modulus modified asphalt concrete GAC-16.

6. The water damage resistant and rutting resistant asphalt pavement structure of claim 5, wherein: the asphalt coupling layer is ordinary asphalt concrete GAC-20.

7. The water damage resistant and rutting resistant asphalt pavement structure of claim 5, wherein: the stress absorption layer is high-viscosity modified asphalt SAMI with the thickness of 3 cm.

8. The water damage resistant and rutting resistant asphalt pavement structure of claim 1, wherein: the thickness of the anti-skid surface layer is 4cm, the anti-skid surface layer is thick modified asphalt concrete OGFC-13, and the spreading amount of the modified emulsified asphalt adhesive layer is 0.8L/m²The anti-rutting asphalt concrete layer is high-modulus modified asphalt concrete GAC-20.

9. The water damage resistant and rutting resistant asphalt pavement structure of claim 8, wherein: the asphalt coupling layer is ordinary asphalt concrete GAC-25.

10. The water damage resistant and rutting resistant asphalt pavement structure of claim 8, wherein: the stress absorption layer is high-viscosity modified asphalt SAMI with the thickness of 2 cm.