Concrete curing method for repairing cracks in winter in cold regions

A technology for repairing cracks and concrete, which is applied in earthwork drilling, building maintenance, road repair, etc. It can solve the problems that cracks in concrete structures cannot be repaired, and achieve the effect of stable and long-lasting hydration process, good fluidity and uniform maintenance
CN112727139BActive Publication Date: 2022-07-15HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2022-07-15

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Abstract

A curing method for concrete used for repairing cracks in winter in cold regions. After the concrete structure cracks in the cold region in winter, the current method cannot achieve rapid repair on site, which brings great difficulties to the continued use of the structure. In the present invention, each electrode type syringe of the filling curing device includes a flat needle, an electrode sheet and an injection body. The flat needle is detachably connected to the discharge end of the injection body, and one end of the flat needle is connected to the discharge end of the injection body. The other end of the flat needle is processed with a discharge port, the outer wall of the flat needle is provided with an electrode sheet, the injection body is filled with conductive concrete, and the two electrode sheets of the two electrode syringes are connected with the pressure regulator. The voltage regulator is connected with the infrared thermal imager through the temperature control switch, and the infrared thermal imager is also equipped with an alarm. The invention is used for quick repair of cracked parts of concrete structures in winter in cold regions.
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Description

technical field

[0001] The invention belongs to the technical field of civil engineering, and particularly relates to a curing method for concrete used for repairing cracks in cold regions in winter. Background technique

[0002] With the development of the construction industry, concrete is more and more used in water conservancy projects, road projects, culverts, tunnels, bridges and building structures due to its excellent quality and low cost. Similarly, due to the poor tensile and shear resistance of concrete, concrete is prone to cracking, resulting in insufficient strength development and a decline in durability quality, thus affecting the normal use of concrete. There are many main methods of repairing concrete cracks, mainly including grouting method, dry filling method, nailing method, polymer immersion method (gravity infiltration and vacuum infiltration), surface sealing method, etc. Among them, the surface sealing method is the most common construction method. ...

Claims

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