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Enhanced base-surface layer interlayer bonding composite structure and optimization method thereof

A combined structure and enhanced technology, applied to cohesive pavement paved on site, roads, buildings, etc., can solve problems such as weak interlayer bond strength, interlayer reflective cracks, and poor pavement structure integrity, so as to reduce the road surface damage, prevent road surface water damage, and prolong service life

Pending Publication Date: 2021-06-25
河北雄安荣乌高速公路有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies or defects, the purpose of the present invention is to provide a reinforced base-surface layer interlayer bonding combination structure and its optimal method, which can effectively solve the problems of weak interlayer bond strength and poor pavement structure in the existing pavement structure. Poor integrity and easy to produce reflection cracks between layers

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  • Enhanced base-surface layer interlayer bonding composite structure and optimization method thereof
  • Enhanced base-surface layer interlayer bonding composite structure and optimization method thereof
  • Enhanced base-surface layer interlayer bonding composite structure and optimization method thereof

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Embodiment 1

[0042] This embodiment 1 provides a reinforced base-surface layer interlayer bonding combination structure, including a sealing layer and a permeable layer, and the sealing layer is sequentially provided with a gravel layer, asphalt layer 1, fiber layer and asphalt layer 2 from top to bottom ; The interlayer bonding combination structure is suitable for interlayer bonding of upper and lower heterogeneous pavement structures.

[0043] Among them, the upper and lower heterogeneous pavement structure refers to the semi-rigid base asphalt pavement between the base layers, in which the base layer is cement stabilized gravel, and the surface layer is rubber modified asphalt concrete ARHM-25.

[0044] The crushed stone layer adopts 5-10mm single particle size crushed stone material, the coverage rate is 80%, and the FI value is 15%.

[0045] Further, the material of the permeable layer is PC-2 type cationic emulsified asphalt permeable oil. When spraying, ensure that it penetrates to...

Embodiment 2

[0067] This embodiment 2 provides an enhanced base-surface layer interlayer bonding combination structure and its optimal method. The difference from embodiment 1 is that the base layer in the upper and lower heterogeneous pavement structure is cement stabilized gravel, and the surface layer It is ATB-25 flexible surface layer, and other steps and parameters are the same.

Embodiment 3

[0069] This embodiment 3 provides an enhanced base-surface layer interlayer bonding combination structure and its optimal method. The difference from embodiment 1 is that the base layer in the upper and lower heterogeneous pavement structure is cement concrete, and the surface layer is ARHM. -25 flexible surface layer, other steps and parameters are the same.

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Abstract

The invention discloses an enhanced base-surface layer interlayer bonding combined structure and an optimization method thereof, and belongs to the technical field of road structure engineering.The interlayer bonding combined structure comprises a sealing layer and a permeable layer, and the sealing layer is sequentially provided with a gravel layer, a first asphalt layer, a fiber layer and a second asphalt layer from top to bottom; the interlayer strain transmission and the upper layer structure stress in the upper and lower heterostructures can be improved, the interlayer bonding strength can be improved, the pavement water damage can be prevented, the generation of the interlayer reflection crack can be effectively inhibited, and various pavement damages caused by the interlayer bonding failure of the pavement structure can be reduced so as to prolong the service life of the road. The invention further discloses an optimal selection method of the interlayer bonding combined structure, the optimal distribution scheme of the base-surface layer interlayer bonding combined structure of the semi-rigid base asphalt pavement can be directly and accurately determined, and the method is very important for design and quality guarantee of interlayer bonding layers of an up-down heterostructure similar to the semi-rigid base asphalt pavement. The method has guiding significance on site construction.

Description

technical field [0001] The invention relates to the technical field of road structure engineering, in particular to a reinforced base-surface layer interlayer bonding combination structure and an optimal method thereof. Background technique [0002] Due to the increasing traffic volume and rapidly increasing awareness of traffic safety, the requirements for road engineering construction are also getting higher and higher, especially for the performance of road structures. Among them, the bonding between the surface layer and the base layer is particularly important. Since the surface layer and the base layer are mostly heterogeneous structures, the upper and lower materials are different, the modulus and deformation capacity of the upper and lower structural layers are very different, and their physical and mechanical properties are significantly different. The mechanical response behavior of structural layers composed of different materials under the same load will also be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32
CPCE01C7/325
Inventor 杨祥骆妍艾长发靳进钊孟会林何宏智邸洪江蔡建辉魏贵岭顾玉辉赵占林刘一鸣丁鹏飞陈曜东任东亚
Owner 河北雄安荣乌高速公路有限公司
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