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Crack repairing method of concrete wall or terrace

A crack repair and concrete wall technology, applied in building maintenance, construction, building structure and other directions, can solve the problems of loss of anti-penetration ability, poor integrity, corrosion of steel bars, etc. Simple repair method

Inactive Publication Date: 2018-05-01
俞岳峰
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AI Technical Summary

Problems solved by technology

The hazards of concrete cracking are as follows: 1. Integrity deterioration; 2. Serious decline in bearing capacity; 3. Serious loss of anti-penetration ability; 4. Severe corrosion of steel bars; 5. Difficult to repair and expensive; 6. Greatly shortened service life

Method used

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Embodiment Construction

[0014] A method for repairing cracks in concrete walls or floors, comprising the steps of:

[0015] a: Make a "V" groove on the wall or floor;

[0016] b: Clean up the dust in the "V" groove;

[0017] c: Brush the base treatment agent in the "V" groove;

[0018] d: Fill the sealant in the "V" groove;

[0019] e: Make connecting holes, inject chemical grouting through the connecting holes, chemical grouting includes cement, water glass, acrylate, and add concrete underwater non-dispersing agent and quick-setting agent in the grouting.

[0020] Among them, the sealant is epoxy sealant, and the connecting holes are inclined holes or cross holes. This crack repair method is simple, and it is not easy to cause wall damage during the crack repair process. Chemical grouting is injected into the cracks through the cross holes or inclined holes, and finally Realize the filling, compacting and healing of concrete cracks by deposits in concrete cracks, and the repair effect is good. ...

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Abstract

The invention relates to a crack repairing method of a concrete wall or a terrace. The method comprises the following steps: a: digging a V-shaped groove in the wall or the terrace; b: cleaning dust of the V-shaped groove; c: brushing a basic level processing agent in the V-shaped groove; d: filling the V-shaped groove with a sealant; e: digging a communicating hole and filling the communicating hole by using a chemical grouting method. The crack repairing method is simple. Additionally, no damage is caused to a wall surface during crack repair. A crack of a crossed hole or of an oblique holeis filled by using a chemical grouting method. Finally, concrete cracks are densely filled with sediments. Therefore, concrete cracks are healed. The repair effect is good.

Description

technical field [0001] The invention relates to a method for repairing cracks in concrete walls or floors. Background technique [0002] Cement concrete is one of the largest and most widely used building materials in the world, such as reinforced concrete bridges, which are currently an important structural form of bridges. At present, my country's annual concrete output has reached 1 billion cubic meters, an increase of more than 2 times compared with 1995. By 2010, the cement output has increased to 800-850 million tons, which has almost doubled from 490 million tons in 1996. More than one-third of the world's total cement production. However, there are some defects in cement concrete materials, such as heavy weight, low tensile strength, and easy shrinkage cracking (including plastic shrinkage cracking, hardening drying shrinkage cracking), etc. These defects limit its wider use in structural engineering. Among them, the defect that cement concrete is prone to drying sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
CPCE04G23/0203E04G23/0285
Inventor 俞岳峰董世明俞逍
Owner 俞岳峰
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