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Construction method for rapidly repairing expansion joint heightening leveling layer

A construction method and technology of expansion joints, applied in road repair, bridge parts, roads, etc., can solve the problems of difficult control of construction quality, complicated construction process, long time, etc., and achieve easy control of construction quality, fast construction, and high early strength Effect

Inactive Publication Date: 2014-08-06
广州溪山环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing construction methods for repairing expansion joints are mainly on-site pouring, the construction process is complicated, the time is long and the construction quality is not easy to control

Method used

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  • Construction method for rapidly repairing expansion joint heightening leveling layer
  • Construction method for rapidly repairing expansion joint heightening leveling layer
  • Construction method for rapidly repairing expansion joint heightening leveling layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The thickness of the heightened leveling layer for the measured expansion joints is 2cm, and the damage range is within 20cm from the edge of the expansion joints. Specific steps are as follows:

[0045] (1) Preparation of repair material prefabricated panels: Put epoxy resin E51, reactive diluent NC 513, diatomaceous earth, phenalkamine curing agent, and ultraviolet light absorber UV 329 into the mixing bucket in sequence, and stir evenly to form epoxy resin glue . Epoxy resin glue and aggregate are mixed into a repair material at a mass ratio of 1:4, mixed for 5 minutes, and then laid on a steel floor with a size of 180cm×20cm×0.2cm that has been sandblasted on the surface until the overall thickness is 2cm, and Curing at a constant temperature of 30° C. for 3 days, and obtaining a repair material prefabricated plate of 180 cm×20 cm×0.2 cm after curing.

[0046] The content of each component in the epoxy resin glue is:

[0047] Component A: 100 parts by mass of epo...

Embodiment 2

[0056] The thickness of the heightening and leveling layer of the measured expansion joint is 4cm, and the damage range is within 20cm from the edge of the expansion joint. Specific steps are as follows:

[0057](1) Preparation of repair material prefabricated panels: Put epoxy resin E51, reactive diluent NC 513, diatomaceous earth, phenalkamine curing agent, and ultraviolet light absorber UV 329 into the mixing bucket in sequence, and stir evenly to form epoxy resin glue . Epoxy resin glue and aggregate are mixed into a repair material at a mass ratio of 1:4.5 and mixed for 5 minutes, and then laid on a steel base plate with a size of 180cm×20cm×0.2cm that has been sandblasted on the surface until the overall thickness is 4cm, and Curing at a constant temperature of 30° C. for 3 days, and obtaining a repair material prefabricated plate of 180 cm×20 cm×0.2 cm after curing.

[0058] The content of each component in the epoxy resin glue is:

[0059] Component A: 100 parts by ...

Embodiment 3

[0068] The thickness of the heightening and leveling layer of the measured expansion joint is 4cm, and the damage range is within 20cm from the edge of the expansion joint. Specific steps are as follows:

[0069] (1) Preparation of repair material prefabricated panels: Put epoxy resin E51, reactive diluent NC 513, diatomaceous earth, phenalkamine curing agent, and ultraviolet light absorber UV 329 into the mixing bucket in sequence, and stir evenly to form epoxy resin glue . Epoxy resin glue and aggregate are mixed into a repair material at a mass ratio of 1:5, mixed for 5 minutes, and then laid on a steel base plate with a size of 180cm×20cm×0.2cm that has been sandblasted on the surface until the overall thickness of the plate is 4cm, and Curing at a constant temperature of 30° C. for 3 days, and obtaining a repair material prefabricated plate of 180 cm×20 cm×0.2 cm after curing.

[0070] The content of each component in the epoxy resin glue is:

[0071] Component A: 100 ...

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Abstract

The invention discloses a construction method for rapidly repairing an expansion joint heightening leveling layer. The construction method the following steps: (1) preparing a repairing material prefabricated slab: mixing epoxy resin adhesive and aggregate to prepare a repairing material, laying the repairing material on a baseplate, and curing to obtain the repairing material prefabricated slab; (2) for a repaired area of the expansion joint heightening leveling layer, slotting according to the size of the repairing material prefabricated slab, removing a whole overlay in the slot until a concrete basal plane is exposed, removing sundries in the slot and leveling the slot, and forming a bonding plane of the repairing material prefabricated slab by the slot bottom and the slot side walls; (3) spraying the epoxy resin adhesive on the bonding plane, mounting the repairing material prefabricated slab in the slot, bonding the baseplate of the repairing material prefabricated slab with the slot bottom, and preserving for 2-4 hours to complete repairing of the expansion joint heightening leveling layer. The construction method is simple to operate, rapid in construction, carried out at a normal temperature, short in traffic closing time, and easy to control construction quality, and has high interface bonding strength of the repairing material prefabricated slab.

Description

technical field [0001] The invention belongs to the field of road surface repair, and in particular relates to a construction method capable of rapidly repairing expansion joints and heightening leveling layers. Background technique [0002] In recent years, with the rapid development of the national economy, my country's road traffic construction has made great achievements. As an important component of bridge engineering, expansion joints have a direct impact on traffic safety, driving comfort and vehicle speed, and also affect the service life of the overall bridge. In addition, due to the characteristics of large traffic flow and many heavy-duty vehicles in my country's road traffic, long-term frequent construction of expansion joints will not only easily cause traffic congestion, but also cause huge economic losses due to poor circulation of people and goods. Therefore, in view of the above-mentioned characteristics, it is very necessary and urgent to develop a rapid r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/09E01D19/06C04B26/14
Inventor 孙杨勇尹昌宇
Owner 广州溪山环保科技有限公司
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