Anti-cracking interlayer for asphalt pavement

An asphalt pavement and interlayer technology, applied in the directions of roads, roads, pavement details, etc., can solve the problems of lack of reinforcement structure and improved drainage, failure in use, affecting the performance of asphalt pavement, etc., to prevent pavement cracks and associated diseases, prevent and Slows generation and expansion, prolongs service life

Active Publication Date: 2012-06-20
北京国华恒源科技开发有限公司
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  • Abstract
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Problems solved by technology

[0011] (2) The effect of the use of geosynthetics is affected by factors such as the strength of the existing pavement structure, damage and repair, the thickness of the overlay asphalt layer, climate conditions, the type of geosynthetics, and the construction process, which will affect the performance of the asphalt pavement and induce Other types of pavement diseases (such as oil flooding, surface material peeling, passing, etc.), even lead to failure in use
[0012] (3) Geotextiles such as Trupave polyester fiberglass cloth, carbon fiber cloth, an

Method used

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  • Anti-cracking interlayer for asphalt pavement
  • Anti-cracking interlayer for asphalt pavement

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[0028] like figure 1 As shown, a kind of asphalt pavement anti-cracking interlayer of the present invention, the anti-cracking interlayer is arranged between the asphalt pavement surface layer and the base layer, and the anti-cracking interlayer is respectively a stress-absorbing film layer 1 and a polymer layer 2 from top to bottom. , high-strength tire base layer 3 and self-adhesive polymer layer 4; wherein, the stress-absorbing film layer 1 is made of polyester fiberglass cloth (fiberglass-polyester paving mat), and the polyester fiberglass cloth is made of 60% by weight of glass fiber It is a composite geosynthetic material composed of polyester fiber and 40% by weight, with a thickness of 0.03mm, high temperature resistance (250°C), high tensile strength (35kN / m), and good compatibility with asphalt mixture; high The polymer layer (high polymer soft matter) 2 is composed of polymer modified asphalt, the matrix is ​​asphalt, the mass of rubber powder is 15-20% of the mass ...

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Abstract

The invention relates to an anti-cracking interlayer for an asphalt pavement, and belongs to the field of composite materials. The anti-cracking interlayer is arranged between the surface layer and the base layer of the asphalt pavement, and comprises a stress absorbing film layer, a superpolymer layer, a high-strength tire base layer and a self-adhering superpolymer layer from the top down. The anti-cracking interlayer has the intelligent functions such as self checking, self controlling and self repairing, as well as vital signs, and has the advantage that stress in the base layer can be dispersed and absorbed automatically, so as to prevent and slow down the generation and the expansion of crack on the pavement, control pavement crack and associated diseases, and prolong the service life.

Description

technical field [0001] The invention relates to an asphalt pavement anti-cracking interlayer, which has intelligent functions and life characteristics such as self-detection, self-control and self-repair for pavement cracks, and belongs to the field of composite materials. Background technique [0002] Cracks and other diseases of semi-rigid base asphalt pavement are inevitable. The road engineering field has been in the process of testing and exploring the measures to prevent or slow down the reflective cracks of asphalt pavement. In recent years, the research on the crack resistance of asphalt pavement has generally focused on improving asphalt In terms of surface materials, there are three main research directions: (1) improving the gradation of mineral mixtures to improve the high-temperature deformation resistance of asphalt mixtures, forming different new technologies for asphalt mixtures; (2) improving the performance and quality of asphalt to Improve its ability to r...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C11/16E01C11/24
Inventor 邓洪亮高文学王正念廖丹
Owner 北京国华恒源科技开发有限公司
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