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High-performance ultrathin asphalt wearing layer and paving method thereof

A wear layer, high-performance technology, applied to cohesive pavement paved on site, roads, buildings, etc., to reduce the difficulty of preparation and construction, good bonding effect, and short surface drying time

Pending Publication Date: 2022-07-22
SHANGHAI QUNKANG ASPHALTUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, all kinds of ultra-thin asphalt overlay technologies in my country are basically from Novachip TM The technology has evolved, but this kind of technology requires special imported synchronous paving machinery (about 6 million / set), and the price is 3-4 times that of domestic paving equipment. Therefore, a high-performance ultra-thin asphalt is proposed Overlay, reducing the promotion cost of the existing ultra-thin asphalt overlay technology is a technical problem that people in the field continue to solve

Method used

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  • High-performance ultrathin asphalt wearing layer and paving method thereof
  • High-performance ultrathin asphalt wearing layer and paving method thereof
  • High-performance ultrathin asphalt wearing layer and paving method thereof

Examples

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Embodiment 1-4

[0053] The ultra-thin asphalt wear layers provided in Examples 1-4 of the present invention all include a waterproof adhesive layer arranged on the original road surface and a surface abrasion layer arranged above the waterproof adhesive layer;

[0054] The sources of raw materials used in Examples 1-4 of the present invention are as follows:

[0055] Aggregate (diabase): purchased from Zecheng Mineral Products Processing Plant in Lingshou County, with a particle size of 1.5-7mm;

[0056] Aggregate (basalt): purchased from Fujian Nanan Xinhongsen Stone Co., Ltd., the particle size is 2-8mm;

[0057] Mineral powder: purchased from Lingshou County Jiangfeng Mineral Products Processing Plant, the particle size is less than 0.074mm;

[0058] Polyester fiber: purchased from Changzhou Tianyi Co., Ltd., about 6mm in length;

[0059] Asphalt: purchased from Shandong Lianhai Petrochemical Co., Ltd.;

[0060] Rock asphalt: purchased from Anhui Zhongyin Co., Ltd.;

[0061] Naphthenic...

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Abstract

The invention relates to the technical field of pavement construction, in particular to a high-performance ultra-thin asphalt wearing layer and a paving method thereof.The ultra-thin asphalt wearing layer comprises a waterproof bonding layer arranged on an original pavement and a surface wearing layer arranged on the waterproof bonding layer; the surface wearing layer is prepared from the following components in parts by weight: 84-90 parts of aggregate, 5-8 parts of modified asphalt, 3-8 parts of mineral powder and 0.1-0.5 part of polyester fiber; the ultra-thin asphalt wearing layer provided by the invention is used for pavement maintenance, and due to the adoption of the special binding material, the pavement has ultra-strong interlayer bonding performance, anti-aging performance, reflection crack resistance and low-temperature cracking resistance, and also has good construction workability, so that the wearing layer has thinner structural thickness.

Description

technical field [0001] The invention relates to the technical field of pavement construction, in particular to a high-performance ultra-thin asphalt wear layer and a paving method thereof. Background technique [0002] At present, when the highway management department selects the early and mid-term maintenance measures for asphalt pavement, technologies such as zero-sealing layer, micro-surface and gravel-sealing layer are mainly adopted. Practice has shown that the above-mentioned existing technologies can improve the traffic capacity and service level of the existing pavement to a certain extent, but there are still insufficient durability, high road noise, easy peeling, large milling workload and low construction efficiency. There are technical defects such as large road traffic interference. [0003] As a refined, low-carbon and environmentally friendly road pre-maintenance technology, ultra-thin asphalt overlay has been widely used at home and abroad. This technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26E01C7/34E01C19/45E01C19/48
CPCC04B26/26E01C7/34E01C19/45E01C19/48C04B2111/0075C04B2201/10C04B2201/50C04B16/0683C04B18/12C04B14/02C04B24/08C04B24/26
Inventor 纪淑贞姜尧吕泉张凯歌
Owner SHANGHAI QUNKANG ASPHALTUM TECH CO LTD
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