CN218540259U

CN218540259U - Concrete white-to-black pavement structure

Info

Publication number: CN218540259U
Application number: CN202222242024.0U
Authority: CN
Inventors: 马浩; 杨磊; 孙博文; 耿藏军
Original assignee: China Railway Construction Electrification Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Current assignee: China Railway Construction Electrification Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-02-28
Anticipated expiration: 2032-08-24

Abstract

The utility model belongs to the technical field of the road surface is reformed transform and specifically relates to a white black pavement structure that changes of concrete is related to. The utility model provides a concrete is white changes black pavement structure, including the asphalt concrete layer, the stress absorbing layer that from top to bottom lay and mill the mill plane basic unit, the stress absorbing layer sets up asphalt concrete layer with mill between the mill plane basic unit, the stress absorbing layer is including the aggregate layer, first stress layer, fibre seal and the second stress layer that from top to bottom lay, fibre in the fibre seal is in disorder to evenly distributed, overlap joint each other, with the aggregate layer first stress layer and second stress layer forms network winding structure. By implementing the method, the bonding force and the stability of the paved road surface and the original road surface can be improved, the method has stronger functions of absorbing and dispersing stress, and can effectively inhibit the occurrence of reflection cracks, thereby prolonging the service life of the road.

Description

Concrete white-to-black road surface structure

Technical Field

The utility model relates to a road surface reforms transform technical field, especially relates to a concrete white changes black road surface structure.

Background

With the lapse of road time, old cement concrete pavement is overwhelmed in the past, can't reach the demand of the road surface heavy load of present road, the planeness of most cement concrete pavements has the problem, its crack, pot hole are difficult to repair, the light refracting power of the white pavement is strong and apt to produce the visual fatigue, cause the road traffic safety crisis, the prior art is to carry on the asphalt on the original concrete pavement, but see to lay the bituminous pavement on the concrete pavement and can't solve the problem of the road surface cracking too with the present experience, this method will produce the stress concentration and swell upwards once the bituminous pavement has cracks, cause the road surface to be uneven, its crack continues to repair the life cycle is very limited too.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a concrete white-to-black road surface structure, including the asphalt concrete layer, the stress absorbing layer and the milling surface base layer that are laid from top to bottom, the stress absorbing layer is disposed between the asphalt concrete layer and the milling surface base layer, wherein, the stress absorbing layer includes aggregate layer, first stress layer, fiber seal layer and the second stress layer that are laid from top to bottom, the fibers in the fiber seal layer are in disorder to evenly distributed, overlap joint each other, with the first stress layer with the second stress layer forms network winding structure.

Optionally, the first stress layer and the second stress layer are SBR high viscosity modified asphalt.

Optionally, the distribution amount of the first stress layer and the second stress layer is 1.8 to 2.0L per square meter.

Optionally, the aggregate of the aggregate layer is glauconite or basalt.

Optionally, the spreading amount of the aggregate layer is 8-12m ³ /K㎡。

Optionally, the milled grain depth of the milled surface substrate is 0.8 to 1.2 cm.

Optionally, the amount of the spread of the fiber sealing layer is 40-80g per square meter.

Compared with the prior art, the beneficial effect of this disclosure is: the stress absorbing layer is divided into a bone material layer from top to bottom, a first stress layer, a fiber sealing layer and a second stress layer, fibers in the limiting sealing layer are distributed in a disorderly and uniform mode in the first stress layer and the second stress layer and are mutually overlapped, and the limiting sealing layer and the bone material layer form a network winding structure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the embodiments or technical solutions in the prior art description will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of the present disclosure;

fig. 2 is a schematic illustration of the disorientation of the fibers within the fiber layers of the present disclosure.

Wherein, 1-asphalt concrete layer; 2-a stress absorbing layer; 21-aggregate layer; 22-a first stress layer; 23-fiber sealing layer; 24-a second stress layer; and 3, milling and planing a surface base layer.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

The prior art is that asphalt is paved on the original concrete pavement, but the problem of pavement cracking cannot be solved by paving the asphalt pavement on the concrete pavement according to the current experience, once the asphalt pavement has cracks, stress concentration is generated and the asphalt pavement bulges upwards, so that the pavement is uneven, and the continuous repairing service cycle of the cracks is limited.

Based on this, the embodiment of the present disclosure provides a concrete white-to-black pavement structure, which effectively improves the comprehensive mechanical properties of the pavement, such as tensile strength, shear strength, compressive strength, and impact strength, improves the adhesion and stability between the paved pavement and the original pavement, has a strong absorption and dispersion function on stress, and can effectively inhibit the occurrence of reflection cracks, thereby improving the service life of the pavement.

The concrete white-to-black road surface structure is explained in detail by the following specific examples:

referring to fig. 1 and 2, the present disclosure provides a concrete white-to-black road surface structure, which includes an asphalt concrete layer 1, a stress absorbing layer 2 and a milling surface base layer 3 arranged from top to bottom, wherein the stress absorbing layer 2 is arranged between the asphalt concrete layer 1 and the milling surface base layer 3. In a preferred embodiment of the present disclosure, the milled grain depth of the milled surface base layer 3 is 0.8 to 1.2 cm, preferably 1 cm, and when the milled grain depth is less than 0.8 cm, the bonding degree with the paved road surface (the asphalt concrete layer 1 and the stress absorption layer 2 of the present disclosure) is insufficient, and displacement and falling are easily generated; when the milled grain depth is more than 1.2 cm, the structure of the stress absorbing layer 2 and the joint thereof may be damaged, resulting in deterioration of the effect of the stress absorbing layer 2.

The stress absorption layer 2 comprises an aggregate layer 21, a first stress layer 22, a fiber sealing layer 23 and a second stress layer 24 which are arranged from top to bottom, wherein the first stress layer 22 and the second stress layer 24 can be preferably selected from SBR high-viscosity modified asphalt, the spreading amount of the first stress layer 22 and the second stress layer 24 is 1.8-2.0L per square meter, and the spraying temperature of the first stress layer 22 and the second stress layer 24 is 185-190 ℃ usually; wherein the aggregate of the aggregate layer 21 is a hard stone such as glauconite or basalt to improve the strength of the stress absorption layer 2, and the scattering amount of the aggregate layer 21 is 8-12m ³ The square meter is preferably used for measuring the coverage rate of the square meter, wherein the coverage rate is not less than 80 percent; the spreading amount of the fiber sealing layer 23 is 40-80 g/square meter, optional fibers are non-broken yarns, the fibers in the fiber sealing layer 3 are uniformly distributed in a disorderly direction and are mutually overlapped, a network winding structure is formed by the fibers and the first stress layer 22 and the second stress layer 24, the fiber sealing layer 3, the first stress layer 22 and the second stress layer 24 form a compact network winding structure, the fiber sealing layer, the bridging and reinforcing effects can be realized, the oil content in the first stress layer 22 and the second stress layer 24 can be adsorbed, the flow of the first stress layer 22 and the second stress layer 24 can be effectively prevented, and the high-temperature stability, toughening and crack resistance effects can be realized. Furthermore, the aggregate of the aggregate layer 21 enters a network winding structure formed by combining the fiber sealing layer 23 with the first stress layer 22 and the second stress layer 24, and the compacted and molded aggregate is tightly wrapped by the network winding structure formed by combining the fiber sealing layer 23 with the first stress layer 22 and the second stress layer 24 to form a composite mechanical interlocking system, so that the slippage and the falling of the aggregate can be effectively inhibited. Further, the method can be used for preparing a novel materialIn order to enable asphalt, fiber and gravel to contact with each other in time to achieve better cohesiveness and overall structure performance, the first stress layer 22, the fiber sealing layer 23 and the second stress layer 24 of the aggregate layer 21 are synchronously spread by four layers at one time, and the stress absorbing layer synchronous sealing layer vehicle is specially selected from a luxury ZZ1317N436GE1 type.

It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The concrete white-to-black road surface structure is characterized by comprising an asphalt concrete layer (1), a stress absorption layer (2) and a milling surface base layer (3) which are arranged from top to bottom, wherein the stress absorption layer (2) is arranged between the asphalt concrete layer (1) and the milling surface base layer (3),

the stress absorption layer (2) comprises an aggregate layer (21), a first stress layer (22), a fiber sealing layer (23) and a second stress layer (24), wherein the aggregate layer, the first stress layer (22), the fiber sealing layer (23) and the second stress layer (24) are arranged from top to bottom, fibers in the fiber sealing layer (23) are distributed randomly and uniformly and are mutually overlapped, and the first stress layer (22) and the second stress layer (24) form a network winding structure.

2. The concrete white-to-black pavement structure according to claim 1, wherein the first stress layer (22) and the second stress layer (24) are SBR high-viscosity modified asphalt.

3. The concrete white-to-black road surface structure according to claim 1, wherein the distribution amount of the first stress layer (22) and the second stress layer (24) is 1.8-2.0L/square meter.

4. The concrete white-to-black pavement structure according to claim 1, characterized in that the aggregate of the aggregate layer (21) is glauconite or basalt.

5. The concrete white-to-black pavement structure according to claim 1, characterized in that the amount of the aggregate layer (21) is 8-12m ³ /K㎡。

6. The concrete white-to-black road structure according to claim 1, wherein the milled grain depth of the milled surface base layer (3) is 0.8 to 1.2 cm.

7. The concrete white-to-black road surface structure according to claim 1, wherein the spread of the fiber sealing layer (23) is from 40 to 80 grams per square meter.