Road and bridge engineering concrete crack control method

A technology of road and bridge engineering and control methods, applied in roads, bridges, roads, etc., can solve the problems of reducing structural durability, easy corrosion, and endangering the safe use of roads and bridges, and achieve excellent ductility and resilience, and good low-temperature embrittlement resistance performance, good high temperature stability

Inactive Publication Date: 2021-02-02
王晖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Concrete cracks in the existing road and bridge engineering are very harmful, reducing the durability of the structure, and the bearing capacity is insufficient, which endangers the safe use of the road and bridge. In turn, there will be problems of broken plates and cracks, which seriously affect the engineering quality and service life of the cement pavement. Now Some control methods are costly, inconvenient to use, low in strength, easy to corrode, and not durable

Method used

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  • Road and bridge engineering concrete crack control method

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example 1

[0018] The invention provides a technical solution: a method for controlling concrete cracks in road and bridge engineering, the production steps include the following: S1, preparation materials: prepare portland cement, stabilizer, additive, sand and gravel, acrylamide polymer and epoxy resin slurry material ; S2, clean up impurities: clean the surface of the concrete cracks, use a high-power vacuum cleaner to remove impurities inside or around the concrete cracks, and then use a high-pressure cleaner to wash the inside of the concrete cracks or around the concrete cracks , will continue to use the dryer to blow and dry the inside of the concrete crack or around the concrete crack; S3, mixed cement: put portland cement, stabilizer, additive and sand into the mixer respectively, and then add an appropriate amount of water , start the mixer to control high-speed mixing and stirring, the stirring speed of the stirring rod is controlled at 360r / min, and the time is controlled at 3...

example 2

[0020] The invention provides a technical solution: a method for controlling concrete cracks in road and bridge engineering, the production steps include the following: S1, preparation materials: prepare portland cement, stabilizer, additive, sand and gravel, acrylamide polymer and epoxy resin slurry material ; S2, clean up impurities: clean the surface of the concrete cracks, use a high-power vacuum cleaner to remove impurities inside or around the concrete cracks, and then use a high-pressure cleaner to wash the inside of the concrete cracks or around the concrete cracks , will continue to use the dryer to blow and dry the inside of the concrete crack or around the concrete crack; S3, mixed cement: put portland cement, stabilizer, additive and sand into the mixer respectively, and then add an appropriate amount of water , start the mixer to control high-speed mixing and stirring, the stirring speed of the stirring rod is controlled at 480r / min, and the time is controlled at 5...

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Abstract

The invention discloses a road and bridge engineering concrete crack control method. The method comprises the following steps: S1, preparing materials: preparing Portland cement, a stabilizer, an additive, sandstone, an acrylamide polymer and an epoxy resin slurry material; S2, cleaning impurities: cleaning the surfaces of the concrete cracks; S3, cement mixing: respectively adding Portland cement, a stabilizer, an additive and sandstone into a stirrer, adding a proper amount of water, and starting the stirrer to perform high-speed mixing and stirring; S4, grooving and filling: forming a V-shaped groove in the middle end of the crack, adopting pressure feed equipment to start high pressure filling so as to uniformly fill mixed materials into the cracks of the V-shaped groove; S5, uniform leveling: uniformly smearing the mixed materials on the surfaces of the cracks, and flattening the surface of the cracks in the concrete by adopting a scraping-leveling device; and S6, coating and air-drying. The coating has good high-temperature stability and low-temperature embrittlement resistance, does not melt at high temperature, does not crack at low temperature, and is wear-resistant and corrosion-resistant.

Description

technical field [0001] The invention relates to the technical field of road and bridge engineering, in particular to a method for controlling concrete cracks in road and bridge engineering. Background technique [0002] Road and bridge engineering originally refers to the survey, design, construction, maintenance and management of highways and bridges. According to the structure, road and bridge engineering can be divided into: subgrade, road surface, bridge, culvert, tunnel, drainage, protection, greening, traffic engineering, electromechanical and other projects. According to the standard unit projects, it is divided into: subgrade engineering, pavement engineering, bridge engineering, interchange engineering, tunnel engineering, environmental protection engineering, traffic safety facilities, electromechanical engineering, housing construction engineering. Concrete cracks are the physical structural changes of concrete structures due to the effects of internal and extern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/14E01C23/09E01C19/48E01C19/46E01D22/00C04B28/04C04B111/20C04B111/27C04B111/72E01D101/24
CPCC04B28/04C04B2111/20C04B2111/2038C04B2111/27C04B2111/72E01C7/147E01C19/46E01C19/4866E01C23/096E01D22/00E01D2101/24C04B14/02C04B2103/0068C04B24/2652C04B24/281
Inventor 王晖
Owner 王晖
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