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Security construction method for sealing expansion joint of airport runway take-off and landing strip

A technology of lifting belts and airports, applied in the direction of roads, roads, pavement details, etc., to achieve the effect of solving economic losses

Inactive Publication Date: 2015-06-17
刘保群
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Compared with the prior art, the present invention has the following beneficial effects: it can not only ensure the waterproof sealing effect of the expansion joints of the lifting belt of the airport runway, but also can safely resist the damage to the sealant in the expansion joints during the high-pressure water removal of the lifting belt, effectively It solves the problem of frequent replacement of expansion joint sealants and the huge economic losses caused by frequent construction caused by high-pressure water removal of glue on the lift belt of the airport runway

Method used

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  • Security construction method for sealing expansion joint of airport runway take-off and landing strip

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Embodiment 1

[0013] A maintenance construction method for the sealing of the expansion joints of the runway lifting belt of the airport, comprising the following steps: firstly remove the sealant that has lost the waterproof effect in the expansion joints 4 of the lifting belt of the airport runway, and use a repair vehicle to remove the sealing glue of the expansion joints 4 of the lifting belt of the airport runway. Grind the side walls on both sides to ensure that the original sealant is completely removed, and then use a hair dryer to blow off the dust on both side walls of the runway lift belt expansion joint 4, and then insert foam with a diameter 2mm wider than the airport runway lift belt expansion joint Sealing strip 1, insert 5mm thick silicone sealant 2 on top of the foam sealing strip 1, cure for 7 days until the silicone sealant 2 initially solidifies, and then insert 4mm thick polyurethane sealant 3, so far all the work is completed.

Embodiment 2

[0015] A maintenance construction method for the sealing of the expansion joints of the runway lifting belt of the airport, comprising the following steps: firstly remove the sealant that has lost the waterproof effect in the expansion joints 4 of the lifting belt of the airport runway, and use a repair vehicle to remove the sealing glue of the expansion joints 4 of the lifting belt of the airport runway. Grind the side walls on both sides to ensure that the original sealant is completely removed, and then use a hair dryer to blow off the dust on both side walls of the runway lift belt expansion joint 4, and then insert foam with a diameter 1mm wider than the airport runway lift belt expansion joint Sealing strip 1, insert 4mm thick polysulfide sealant 2 on top of foam sealing strip 1, cure for 1 day until the polysulfide sealant 2 is initially solidified, and then insert 2mm thick polyurethane sealant 3, so far all the work is completed.

Embodiment 3

[0017] A maintenance construction method for the sealing of the expansion joints of the runway lifting belt of the airport, comprising the following steps: firstly remove the sealant that has lost the waterproof effect in the expansion joints 4 of the lifting belt of the airport runway, and use a repair vehicle to remove the sealing glue of the expansion joints 4 of the lifting belt of the airport runway. Grind the side walls on both sides to ensure that the original sealant is completely removed, and then use a hair dryer to blow off the dust on both side walls of the runway lift belt expansion joint 4, and then insert foam with a diameter 2mm wider than the airport runway lift belt expansion joint Sealing strip 1, insert 10mm thick polysulfide sealant 2 above the foam sealing strip 1, cure for 5 days until the polysulfide sealant 2 is initially solidified, and then insert 6mm thick polyurethane sealant 3, so far all the work is completed.

[0018] The core steps of the pr...

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Abstract

The invention discloses a security construction method for sealing an expansion joint of an airport runway take-off and landing strip. The method comprises the following steps: firstly, removing a sealant which loses the waterproof function in the expansion joint of the airport runway take-off and landing strip, polishing the side walls of the two sides of the expansion joint of the airport runway take-off and landing strip by a finishing car to enable the original sealant to be thoroughly removed, and purging the dust on the side walls of the two sides of the expansion joint of the airport runway take-off and landing strip by a blower; then, embedding a foam sealing strip into the expansion joint of the airport runway take-off and landing strip, wherein the diameter of the foam sealing strip is wider than the expansion joint by 1-2mm; embedding a polysulfide sealant or a silicone sealant with the thickness of 4-10mm into the upper part of the foam sealing strip, and curing for 1-7 days until the polysulfide sealant or the silicone sealant is preliminarily solidified; then, embedding a polyurethane sealant with the thickness of 2-6mm to complete the whole operation. After the security construction method is used, the waterproof sealing effect of the expansion joint of the airport runway take-off and landing strip can be guaranteed, and the sealant of the expansion joint is protected from being damaged by the high-pressure water used for removing the glue on the take-off and landing strip; therefore, a better sealing effect is achieved.

Description

technical field [0001] The invention relates to a maintenance construction method for cement expansion joint sealing, in particular to a maintenance construction method for expansion joint sealing of an airport runway lifting belt. Background technique [0002] There are mainly three types of sealing materials for the expansion joints of airport runways: polysulfide sealing materials, polyurethane sealing materials and silicone sealing materials. Polysulfide sealing materials are not resistant to ultraviolet rays and ozone, and are prone to aging phenomena such as surface cracks. The expansion rate can meet the requirements at low temperatures, but the impact resistance to high-pressure water is poor when removing glue from the airport runway. All the polysulfide sealing material in the expansion joint of the lifting belt will be impacted out, or the sealant of the polysulfide sealing material will be impacted into a honeycomb shape, and the waterproof performance will be lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/02
Inventor 刘保群
Owner 刘保群
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