Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Asphalt highway construction method

A construction method and highway technology, applied in the directions of roads, roads, and road repair, can solve the problems of reducing the service life of asphalt highways, dry cracks in the base of asphalt highways, and poor construction quality of asphalt highways, so as to reduce shrinkage cracks and improve the use of asphalt. longevity, avoiding the effect of poor construction quality

Inactive Publication Date: 2021-06-25
崔付丽
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the current asphalt highway is constructed according to the traditional construction method, the road base is mainly maintained by artificial watering. During the artificial watering process, the evaporation of water in the asphalt road base is relatively affected by factors such as external temperature. The asphalt road base layer is prone to dry cracks due to lack of water. At the same time, the bonding strength between the asphalt road surface layer and the base layer after being laid by traditional construction methods is poor. With the increase of road use time, the asphalt road surface It is easy to produce a shift between the layer and the base layer, thereby accelerating the damage of the asphalt road and reducing the service life of the asphalt road. In addition, in the current asphalt road construction process, the final result of the asphalt road is often caused by irregular operations and mechanical failures during the construction process. Poor construction quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] A kind of asphalt road construction method, it comprises the following steps:

[0021] Step 1: Subgrade leveling: fill the potholes on the subgrade with gravel materials, and use a leveling machine to level and compact the subgrade to ensure that the top surface of the subgrade is flat and compact, and ensure that the side slope of the subgrade is flat and free of subsidence;

[0022] Step 2: Basic mixture configuration: configure the mixer near the construction site, and add the pre-selected cement-stabilized fine-grained soil, cement-stabilized gravel soil, cement-stabilized gravel soil and lime-stabilized gravel soil to the In the mixer, then add a certain amount of water into the mixer, and strictly control the stirring temperature;

[0023] Step 3: Transport the stirred material to the paver, lay it evenly on the leveled roadbed through the unloading mechanism and screw conveyor on the paver, and use a 10-ton vibratory roller for rolling, first rolling 1-2 times, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an asphalt highway construction method, which comprises the following steps of: 1, leveling a roadbed, namely filling sand and gravel materials in hollow positions on the roadbed, and leveling and compacting the roadbed by using a leveling machine; The method has the beneficial effects that through rapid laying of the base layer and the asphalt surface layer, the watering curing process of the base layer is omitted, the base layer is converted from bare artificial curing to closed curing after covering of the asphalt surface, curing conditions are more favorable, the curing period of the base layer is canceled and shortened, and the construction efficiency of the asphalt road is greatly improved. Meanwhile, the change amplitude of the water content in the base layer is small, the defect that the change amplitude of the water content of the base layer is large due to manual curing is overcome, and reduction and avoiding of shrinkage cracks caused by the change of the water content of the base layer are facilitated; and furthermore, the asphalt surface layer and the base layer are compressed and formed through inosculating after fast laying. The pushing deformation between the asphalt surface layer and the base layer when the asphalt road is used after construction is effectively avoided, and the service life of the asphalt road is prolonged.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to an asphalt road construction method. Background technique [0002] Asphalt pavement refers to various types of pavement paved with asphalt materials mixed with mineral materials. Asphalt binder improves the ability of paving aggregates to resist road damage from driving and natural factors, making the road smooth, less dusty, impermeable and durable. Therefore, asphalt pavement is the most widely used high-grade pavement in road construction. [0003] However, when the current asphalt road is constructed according to the traditional construction method, the road base is mainly maintained by artificial watering. During the artificial watering process, the evaporation of water in the asphalt road base is relatively affected by factors such as external temperature. The asphalt road base layer is prone to dry cracks due to lack of water. At the same time, the bonding stre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01C19/10E01C19/18E01C19/28
CPCE01C7/187E01C19/10E01C19/18E01C19/28
Inventor 崔付丽刘园连冬梅薛振富秦平娜
Owner 崔付丽
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com