Pavement structure using super-viscous fiber wearing layer

A wear-resistant layer and fiber technology, which is applied to cohesive pavement paved on site, roads, roads, etc., can solve the problems of too deep base structure strength and defect depth, poor skid resistance and low durability of asphalt pavement, and achieve The effect of prolonging the life of the pavement, improving the life, strong bending resistance and rebound recovery ability

Active Publication Date: 2020-01-10
山西省交通新技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional asphalt pavement maintenance has micro-surfacing technology, but the asphalt pavement repaired by this technology has poor skid resistance, high noise and low durability
Although the existing ultra-thin wear layer technology overcomes some defects in the micro-surface, it is prone to rapid depression when the strength of the base structure and the depth of the defect are too deep.

Method used

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  • Pavement structure using super-viscous fiber wearing layer
  • Pavement structure using super-viscous fiber wearing layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A pavement structure using a super viscous fiber wear layer, comprising from bottom to top: a base layer 1 with compacted strength, a highly permeable emulsified asphalt oil permeable layer 2 with a thickness of at least 3 mm, a structural reinforcement layer 3, and a modified emulsified asphalt viscous oil layer 4 And a super viscous fiber wearing layer 5 containing untwisted roving glass fiber.

[0021] The thickness of the structural reinforcing layer 3 comprising reinforcing ribs arranged in parallel is at least 5 mm. The reinforcing ribs are fixed by the fixing groove at the bottom or at least two transverse ribs crossing in the vertical direction to prevent movement of the position under pressure when the aggregate is filled. The reinforcement rib in this embodiment is a hollow circular tube type reinforcement rib. The structural reinforcement layer is divided into upper and lower layers by the horizontal diameter plane of the hollow circular tube reinforcing rib...

Embodiment 2

[0025] Such as figure 1 As shown in , a pavement structure using a super viscous fiber wear layer, including from bottom to top: a base layer of compacted strength 1, a highly permeable emulsified asphalt oil-permeable layer with a thickness of at least 3mm 2, a structural reinforcement layer 3, and a modified emulsified Asphalt viscous oil layer 4 and super viscous fiber wearing layer 5 containing roving glass fiber.

[0026] The structural reinforcement layer 3 has a thickness of at least 5 mm. The reinforcement ribs are arranged in parallel, and the reinforcement ribs are fixed by a fixed groove at the bottom or at least two transverse ribs vertically crossing to prevent movement of the position under pressure when the aggregate is filled. Such as figure 1 and 2 As shown in , the reinforcement rib in this embodiment is a sleeper type reinforcement rib 6 with a trapezoidal cross section. The lower included angle of the trapezoidal cross-section of the cross-section of th...

Embodiment 3

[0031] A pavement structure using a super viscous fiber wear layer, comprising from bottom to top: a base layer 1 with compacted strength, a highly permeable emulsified asphalt oil permeable layer 2 with a thickness of at least 3 mm, a structural reinforcement layer 3, and a modified emulsified asphalt viscous oil layer 4 And a super viscous fiber wearing layer 5 containing untwisted roving glass fiber.

[0032] The structural reinforcement layer 3 includes at least two layers, one of which uses hollow circular tube-type reinforcing ribs, and the other layer uses sleeper-type reinforcing ribs. The hollow circular tube-type reinforcing ribs and sleeper-type reinforcing ribs of adjacent layers are arranged in a criss-cross pattern and stacked.

[0033] The hollow round tube has stronger bending resistance and rebound recovery ability than the solid round tube, and the sleeper-shaped reinforcing rib can disperse the pressure, reduce the impact on the lower layer, further avoid sa...

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Abstract

The invention discloses a pavement structure using a super-viscous fiber wearing layer. The pavement structure using the super-viscous fiber wearing layer comprises a base layer with the compaction strength, a high-permeability emulsified asphalt oil-penetrating layer, a structural reinforcement layer, a modified emulsified asphalt viscous oil layer and the super-viscous fiber wearing layer containing roving type glass fibers from bottom to top. The structural reinforcement layer comprises reinforcement ribs distributed in parallel, the reinforcement ribs are fixed through a fixing groove in the bottom or at least two transverse bars transversely penetrating in the vertical direction, the reinforcement ribs are filled with aggregates, and the reinforcement ribs are hollow circular tube type reinforcement ribs or sleeper type reinforcement ribs with trapezoidal sections. According to the pavement structure using the super-viscous fiber wearing layer, asphalt pavements with poor structural strength and being prone to sinking can be laid and repaired with super-viscous fiber wearing layer materials, and the structure is reinforced through the thickness of a reinforcement rib adjustingstructure reinforcement layer, and meanwhile, the pavement structure can be applied to repair and complement of defects with larger depth.

Description

technical field [0001] The invention belongs to the technical field of road engineering, in particular to a pavement structure using a super viscose fiber wearing layer. Background technique [0002] Asphalt pavement has the advantages of high smoothness, low noise, and convenient maintenance. However, under the action of natural environment and long-term load, asphalt pavement has surface oil flooding, water seepage, slight rutting and so on. If it is not repaired in time, the disease will accelerate and deteriorate, which will directly affect the driving safety, and the service life of the asphalt pavement will be greatly reduced. Therefore, it is necessary to choose appropriate maintenance methods to repair minor diseases of the asphalt pavement in time. [0003] Traditional asphalt pavement maintenance has micro-surfacing technology, but the asphalt pavement repaired by this technology has poor skid resistance, high noise and low durability. Although the existing ultra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32E01C7/35
CPCE01C7/32E01C7/35E01C7/353
Inventor 朱晓斌张俊豪赵晋锋赵博文王学鹏邓锐郭中杰王建伟高学凯荣亚鹏景鹏翔张小琴刘俊权薛小武付国刚边睿
Owner 山西省交通新技术发展有限公司
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