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

Airport pavement structure for additionally paving asphalt layer on old cement airport runway and paving method of airport pavement structure

A technology for airport runways and old cement, which is applied to cohesive pavement, roads, roads and other directions paved on site. It can solve the problems of high strength, low-temperature brittle fracture, and poor coordination, so as to reduce the impact and improve friction and adhesion. Good strength and water stability

Active Publication Date: 2021-08-10
SOUTHEAST UNIV
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing epoxy asphalt concrete material has high strength, is prone to low-temperature brittle fracture, and has poor coordination with other pavement layers, which cannot well meet the requirements for overall performance during long-term use.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Airport pavement structure for additionally paving asphalt layer on old cement airport runway and paving method of airport pavement structure
  • Airport pavement structure for additionally paving asphalt layer on old cement airport runway and paving method of airport pavement structure
  • Airport pavement structure for additionally paving asphalt layer on old cement airport runway and paving method of airport pavement structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] like figure 1 As shown, the airport pavement structure of the old cement airport runway of the present embodiment with an asphalt layer, including a lower viscoelastic bonding layer 2, a mortar layer 3, and a gravel layer arranged on the old cement concrete layer 1 from bottom to top. 4. Modified asphalt concrete overlay 5, upper interface bonding layer 6 and epoxy asphalt concrete overlay 7; crushed stone layer 3 is embedded between the mortar layer 2 and modified asphalt concrete overlay 5, modified The permanent asphalt concrete overlay layer 5 and the epoxy asphalt concrete overlay layer 7 are bonded through the upper interface bonding layer 6 .

[0042] The lower viscoelastic bonding layer 2 uses pit interface repairing agent, and the bonding strength of the pit interface repairing agent used in this embodiment is 1.2 MPa.

[0043] The mortar layer 3 adopts cement-emulsified asphalt mortar. In this embodiment, the ratio of raw materials used in the cement-emulsifi...

Embodiment 2

[0068] The airport pavement structure of the used old cement airport runway overlay asphalt layer in embodiment 2, except that the aggregate gradation of the early strength type epoxy asphalt concrete EA-13 of the epoxy asphalt concrete overlay layer 7 is different from that of embodiment 1 Except, the preparation of all the other materials and the paving method are all the same as in Example 1.

[0069] In this embodiment, the aggregate gradation of the early-strength epoxy asphalt concrete EA-13 of the epoxy asphalt concrete overlay layer 7 is shown in Table 3.

Embodiment 3

[0071] The used airport pavement structure of the old cement airport runway overlay asphalt layer used in embodiment 3, except that the aggregate gradation of the early strength type epoxy asphalt concrete EA-13 of the epoxy asphalt concrete overlay layer 7 is different from that of embodiment 1 Except, the preparation of all the other materials and the paving method are all the same as in Example 1.

[0072] In this embodiment, the aggregate gradation of the early-strength epoxy asphalt concrete EA-13 of the epoxy asphalt concrete overlay layer 7 is shown in Table 3.

[0073] Table 3 Aggregate gradation of early strength epoxy asphalt concrete EA-13 in the example

[0074]

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

PropertyMeasurementUnit
Bond strengthaaaaaaaaaa
Particle sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an airport pavement structure for additionally paving an asphalt layer on an old cement airport runway and a paving method of the airport pavement structure. The airport pavement structure comprises a lower viscoelastic bonding layer, a mortar layer, a gravel layer, a modified asphalt concrete overlay layer, an upper interface bonding layer and an epoxy asphalt concrete overlay layer which are sequentially arranged on an old cement concrete layer from bottom to top; and the gravel layer is arranged between the mortar layer and the modified asphalt concrete overlay layer, and the modified asphalt concrete overlay layer and the epoxy asphalt concrete overlay layer are bonded through an upper interface bonding layer. According to the pavement structure, the integrity of the structure and the bonding performance between layers are fully considered, a stress generated by airplane loads is evenly transmitted, stress concentration is avoided, and the pavement structure has excellent overall performance, can meet the requirement for heavy traffic loads of large airplanes and has good rut resistance, low-temperature crack resistance and water stability; and meanwhile, the paving method of the pavement structure is easy to operate, and mechanical construction can be achieved.

Description

technical field [0001] The invention belongs to the technical field of airport pavement engineering, in particular to an airport pavement structure and a paving method for an old cement airport runway with an asphalt layer. Background technique [0002] Airport pavement is the most important infrastructure in the airport flight area, and it undertakes important tasks such as aircraft takeoff and landing, taxiing and parking. At present, most of the airport runways in my country use cement concrete pavement. However, under the repeated action of large aircraft, heavy traffic load factors and environmental factors, the pavement structure will gradually be damaged and various diseases will appear, such as cracks, board corner breaks, road The surface is loose, muddy, etc., seriously affecting flight safety, so it needs to be renovated or expanded. However, the use of cement concrete for renovation or expansion requires a long suspension of navigation, causing inconvenience. As...

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
IPC IPC(8): E01C7/32E01C23/09E01C19/48
CPCE01C7/32E01C7/325E01C23/09E01C23/0973E01C19/48E01C19/488
Inventor 钱振东杨文卉薛永超
Owner SOUTHEAST UNIV
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