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Method for repairing freeze-thaw damage of bridge deck

A repair method, freeze-thaw technology, applied in bridge repair, bridge, bridge construction, etc., can solve problems such as bridge deck repair process cannot be completely repaired, secondary damage, etc., to avoid re-cracking, prevent conduction, and reasonable structural design Effect

Inactive Publication Date: 2021-09-07
山西交通控股集团有限公司
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the existing technology and solve the technical problems existing in the existing bridge deck repair process such as inability to be completely repaired and prone to secondary damage, the present invention provides a repair method for bridge deck freeze-thaw damage

Method used

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  • Method for repairing freeze-thaw damage of bridge deck

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0017] A repair method for bridge deck freezing and thawing damage, wherein, comprises the following steps:

[0018] 1) Grooving: According to the size of the damage, groove from the pavement downward until the reinforcement mesh 3 of the bridge deck pavement layer 2 at the damaged position 1 is exposed;

[0019] 2) Clean up residue: clean up the residue after slotting to facilitate subsequent repair operations;

[0020] 3) Install the elastic rubber strip 4: install the elastic rubber strip 4 horizontally on the steel mesh 3 of the exposed bridge deck pavement layer 2, and the top surface of the elastic rubber strip 4 after installation and the bridge deck pavement layer 2 flush with the top surface;

[0021] 4) Pavement of asphalt surface layer 5: apply latex asphalt layer 6, then fill new asphalt on top of it and pressurize and tamp it, s...

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Abstract

The invention discloses a method for repairing freeze-thaw damage of a bridge deck, belongs to the technical field of bridge pavement repairing, and solves the technical problems that the existing bridge floor repairing process cannot thoroughly repair and is easy to cause secondary damage and the like. According to the technical scheme, the method for repairing freeze-thaw damage of the bridge deck comprises the following steps that (1) grooving is conducted, specifically, performing grooving downwards from a road surface according to the damage situation till a reinforcing mesh of a bridge deck pavement layer at the damage position is exposed; (2) cleaning residues: cleaning the residues after grooving; (3) mounting elastic rubber strips: transversely and additionally mounting the elastic rubber strips on the exposed reinforcing mesh of the bridge deck pavement layer; and (4) paving the asphalt surface layer: smearing the latex asphalt layer, filling new asphalt above the latex asphalt layer, and pressurizing and tamping to enable the asphalt surface layer of the bridge floor to recover to be flattened. The method has the advantages that the structural design is reasonable, the structure is stable, secondary damage is not easy to occur, and the like.

Description

technical field [0001] The invention belongs to the technical field of bridge pavement repair, and in particular relates to a repair method for bridge deck freeze-thaw damage. Background technique [0002] For highway bridges (especially in mountainous areas), due to the large temperature difference between day and night in winter, if the snow is not cleared immediately after snowfall, snowmelt water will be generated when the temperature is relatively high during the day. The snow water seeps down along the concrete pores of the bridge deck asphalt surface layer to the concrete top of the bridge pavement layer. When the snow water flows to the waterproof layer of the concrete top layer of the bridge deck pavement layer, it no longer infiltrates, resulting in the accumulation of snow water to form a catchment layer. Secondly, due to the large longitudinal slope of the bridge, part of the snow water will accumulate in the grooves of the bridge expansion joints along the longi...

Claims

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Application Information

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IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 尉立基张旺韩璐垚刘笑凯刘鹏孙金伟张陶然
Owner 山西交通控股集团有限公司
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