Nano-toughened rubber asphalt Kaipu pavement structure and construction method thereof

A technology of rubber asphalt and pavement structure, which is applied in the direction of roads, roads, on-site paved cohesive pavements, etc., which can solve the problems of inconvenient spreading and difficult processing of high-viscosity rubber asphalt, and achieve fast construction, excellent economic and environmental benefits , excellent waterproof effect

Pending Publication Date: 2022-01-07
陕西交通职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a nano-toughened rubber asphalt cape pavement structure, which solves the problem of difficult processing of high-viscosity rubber asphalt existing in the prior art and inconvenient spreading during construction

Method used

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  • Nano-toughened rubber asphalt Kaipu pavement structure and construction method thereof
  • Nano-toughened rubber asphalt Kaipu pavement structure and construction method thereof

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Embodiment 1

[0061] This embodiment is implemented based on the reconstruction project of the Banqiao-Xiaoyuanzi secondary road in Qingyang City, Gansu Province in 2019. The three-layer Cape seal layer structure is used to replace the lower layer of the originally designed asphalt pavement. The implementation length is 100m and the road width is 8.5m.

[0062] Prepare the required raw materials before construction, including matrix asphalt, waste tire recycled rubber powder, nano-materials, modified emulsified asphalt, gravel, fine aggregate, cement, water, etc. One-step work; and prepare the mechanical equipment required for the construction of each structural layer, such as: asphalt spreader, aggregate spreader, rubber wheel roller, steel wheel roller, brush cleaning machine, slurry sealer.

[0063] In this embodiment, the nanomaterials of toughened rubber asphalt adopt the functional masterbatch made by pre-dispersing carbon nanomaterials in resin. The matrix resin is high-density polypr...

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Abstract

The invention discloses a nano-toughened rubber asphalt Kaipu pavement structure which comprises a bottom layer, a middle layer and a surface layer which are sequentially arranged from bottom to top; the surface layer is made of a modified emulsified asphalt thin slurry mixture, and the laying thickness of the surface layer is 1cm; the middle layer and the bottom layer are respectively paved with a broken stone sealing layer with the thickness of 1-2cm, and a cementing material of the broken stone sealing layer is toughened rubber asphalt. The pavement structure is proper in viscosity, the problems that in the prior art, high-viscosity rubber asphalt is difficult to process and not convenient to distribute during construction are solved, the excellent stress absorption capacity of the rubber asphalt is fully utilized, the diseases of reflection cracking and rutting are greatly improved, meanwhile, due to the surface layer thin slurry mixture, the pavement has excellent waterproofness, flatness and skid resistance, construction is convenient, the environment-friendly advantage is high, and the Kaipu pavement structure can be used as pavement surface layers of newly-built and rebuilt highways of various traffic grades.

Description

technical field [0001] The invention belongs to the technical field of road surface construction, and relates to a nano-toughened rubber asphalt cape pavement structure, and also relates to a construction method of the nano-toughened rubber asphalt cape pavement structure. Background technique [0002] Cape seal is a composite seal technology, which is to spread a slurry seal or micro-surface wear layer on the crushed stone seal, which can significantly improve the smoothness, skid resistance and water tightness of the road surface. At first, it was mainly used for new roads with small traffic volume. With the continuous innovation of rubber asphalt and emulsified asphalt technology, Cape seal gradually developed into a combination of rubber asphalt synchronous gravel seal and modified emulsified asphalt micro-surfacing. On the one hand, this combination can better absorb the load stress and greatly improve the anti-reflective cracking ability of the surface layer; on the ot...

Claims

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Application Information

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IPC IPC(8): E01C7/35
CPCE01C7/358
Inventor 郭红兵韩丽丽朱家剑宋建军田引安李虎成田继明张伟刘彦辉丁星刘宽幅杨海涛
Owner 陕西交通职业技术学院
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