CN109057389B - Method for repairing reserved gap of building - Google Patents
Method for repairing reserved gap of building Download PDFInfo
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- CN109057389B CN109057389B CN201810935548.3A CN201810935548A CN109057389B CN 109057389 B CN109057389 B CN 109057389B CN 201810935548 A CN201810935548 A CN 201810935548A CN 109057389 B CN109057389 B CN 109057389B
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- building
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- sealant
- grouting
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
- E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a method for repairing a reserved gap of a building, which can reduce the cost and has a good repairing effect. The method for repairing the reserved gap of the building comprises the following steps: (1) placing a filler into a reserved gap of a building, wherein the filler comprises two layers of stainless steel plates and a layer of soft glue, and the soft glue is arranged between the two layers of stainless steel plates; (2) embedding grouting pipes in the reserved gaps of the building; (3) filling a plate; (4) coating a sealant; (5) injecting the elastic grouting material into the grouting pipe; (6) and applying pressure outside the sealant so as to inject the elastic grouting material into the reserved gap of the building.
Description
Technical Field
The invention belongs to the technical field of civil and architectural engineering, and particularly relates to a method for repairing a reserved gap of a building.
Background
Civil engineering and construction work is dominated by concrete structures, which inevitably have cracks due to internal and external factors, and the cracks are the main cause of the reduction of the bearing capacity, durability and waterproofness of the concrete structures.
The reserved gap of the building is the physical structural change of the concrete structure due to the action of internal and external factors, and the gap is the main reason for reducing the bearing capacity, durability and waterproofness of the concrete structure. The reserved gaps of the building comprise deformation joints, expansion joints, settlement joints, shockproof joints and the like.
Common processing methods for reserved gaps of buildings include a surface smearing method, a filling method, a grouting method, a structure reinforcing method, a concrete replacement method, an electrochemical protection method and the like.
The surface smearing and surface patching methods have the application range of thin and shallow cracks which are difficult to fill with grout, hairline cracks with the depth not reaching the surface of the steel bar, watertight cracks, non-telescopic cracks and cracks which are not movable any more. The surface patching (geomembrane or other waterproof sheets) method is suitable for seepage-proofing and leakage-stopping of large-area water leakage (honeycomb pitted surface and the like or the specific water leakage position and deformation joint are not easy to determine).
The filling method uses the repairing material to directly fill the crack, is generally used for repairing a wider crack, and has simple operation and low cost. The width is less than 0.3mm, the crack with shallow depth or the crack has filling material, the crack which is difficult to reach the effect by grouting method and the simple treatment of small-scale crack can adopt V-shaped groove, then the filling treatment is carried out.
The grouting method is applicable to all the cracks from fine cracks to large cracks, and has good treatment effect. The crack-repairing slurry is injected into concrete cracks by pressure feeding equipment (with the pressure of 0.2-0.4 Mpa), so that the purpose of blocking is achieved. The elastic crack repairing device can also be used for injecting the crack injecting glue into the crack, electric power is not needed, and the effect of convenience is very ideal.
The structural reinforcement method may be employed to reduce the durability of concrete due to cracks caused by overload, cracks not treated for a long time, and structural strength due to cracks caused by fire.
The concrete replacement method is an effective method for treating seriously damaged concrete, and the method is to remove the damaged concrete and replace the damaged concrete with new concrete or other materials. Commonly used displacement materials are: ordinary concrete or cement mortar, polymer or modified polymer concrete or mortar.
The electrochemical anticorrosion method is to utilize the electrochemical action of applied electric field in medium to change the environment state of concrete or reinforced concrete and passivate reinforcing steel bar so as to reach the purpose of anticorrosion. The cathodic protection method, the chloride salt extraction method and the alkaline recovery method are three effective methods commonly used in the chemical protection method. The method has the advantages that the protection method is less influenced by environmental factors, is suitable for long-term corrosion prevention of reinforcing steel bars and concrete, and can be used for both a cracked structure and a newly-built structure.
A bionic self-healing method for treating the crack features that a special component (such as liquid core fibre or capsule containing adhesive) is added to the conventional concrete component to form an intelligent bionic self-healing nerve network system in the concrete, and when the crack occurs in the concrete, part of the liquid core fibre is secreted to heal the crack again.
However, the processing methods for the reserved gaps of the buildings have respective defects, the repair effect is poor due to low cost, and the cost is high when the repair effect is good.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method overcomes the defects of the prior art, and provides the method for repairing the reserved gap of the building, which can reduce the cost and has good repairing effect.
The technical solution of the invention is as follows: the method for repairing the reserved gap of the building comprises the following steps:
(1) placing a filler into a reserved gap of a building, wherein the filler comprises two layers of stainless steel plates and a layer of soft glue, and the soft glue is arranged between the two layers of stainless steel plates;
(2) embedding grouting pipes in the reserved gaps of the building;
(3) filling a plate;
(4) coating a sealant;
(5) injecting the elastic grouting material into the grouting pipe;
(6) and applying pressure outside the sealant so as to inject the elastic grouting material into the reserved gap of the building.
According to the invention, the grouting pipe is pre-buried, the plate is filled, the sealant is coated, then the grouting material is injected into the grouting pipe, and pressure is applied outside the sealant, so that the elastic grouting material is injected into the reserved gap of the building, and the elastic grouting material finds the crack point to be filled, therefore, the reserved gap of the building can be well repaired while the cost is reduced.
Drawings
Fig. 1 is a flow chart of a method for repairing a reserved gap of a building according to the present invention.
Detailed Description
As shown in fig. 1, the method for repairing the reserved gap of the building comprises the following steps:
(1) placing a filler into a reserved gap of a building, wherein the filler comprises two layers of stainless steel plates and a layer of soft glue, and the soft glue is arranged between the two layers of stainless steel plates;
(2) embedding grouting pipes in the reserved gaps of the building;
(3) filling a plate;
(4) coating a sealant;
(5) injecting the elastic grouting material into the grouting pipe;
(6) and applying pressure outside the sealant so as to inject the elastic grouting material into the reserved gap of the building.
According to the invention, the grouting pipe is pre-buried, the plate is filled, the sealant is coated, then the grouting material is injected into the grouting pipe, and pressure is applied outside the sealant, so that the elastic grouting material is injected into the reserved gap of the building, and the elastic grouting material finds the crack point to be filled, therefore, the reserved gap of the building can be well repaired while the cost is reduced.
Preferably, in the step (1), the grouting pipe is arranged parallel to the reserved gap of the building. Certainly, other modes can be adopted to arrange the grouting pipes, if the other modes are adopted, a plurality of sections of grouting pipes need to be arranged, so that the elastic grouting material can be filled into each crack point of the reserved gap of the building.
Preferably, in the step (2), the plate material is one or more of a polyethylene rod, a polystyrene board and wood. With polyethylene rods being most preferred.
Preferably, in the step (3), the thickness of the sealant is 1.5-2 cm. Thus, the sealing effect can be ensured, and the cost is not too high.
Preferably, in the step (3), the sealant is a modified silane sealant, a polysulfide sealant, or a polyurethane sealant. Of course, the sealant can be other commercially available products.
Preferably, in the step (4), the elastic grouting material is an elastic epoxy grouting material, a flexible polyurethane grouting liquid, or non-cured asphalt. Wherein the elastomeric epoxy grout material is optimal.
Preferably, in the step (5), the pressure is greater than or equal to 0.2 MPa. The elastic grouting material in the grouting pipe can permeate into the concrete crack point only by a small pressure.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (6)
1. A method for repairing a reserved gap of a building is characterized by comprising the following steps:
(1) placing a filler into a reserved gap of a building, wherein the filler comprises two layers of stainless steel plates and a layer of soft glue, and the soft glue is arranged between the two layers of stainless steel plates;
(2) embedding grouting pipes in the reserved gaps of the buildings, wherein the grouting pipes are arranged in parallel to the reserved gaps of the buildings;
(3) filling a plate;
(4) coating a sealant;
(5) injecting the elastic grouting material into the grouting pipe;
(6) and applying pressure outside the sealant so as to inject the elastic grouting material into the reserved gap of the building.
2. The method for repairing reserved gaps in buildings according to claim 1, wherein in the step (3), the plates are one or more of polyethylene rods, polystyrene boards and wood.
3. The method for repairing a reserved gap in a building as claimed in claim 2, wherein in the step (4), the thickness of the sealant is 1.5-2 cm.
4. The method for repairing a reserved gap in a building as claimed in claim 3, wherein in the step (4), the sealant is a modified silane sealant, a polysulfide sealant, or a polyurethane sealant.
5. The method for repairing reserved gaps in buildings according to claim 4, wherein in the step (5), the elastic grouting material is an elastic epoxy grouting material, a flexible polyurethane grouting liquid or non-cured asphalt.
6. The method for repairing reserved gaps in buildings according to claim 5, wherein in the step (6), the pressure is greater than or equal to 0.2 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810935548.3A CN109057389B (en) | 2018-08-16 | 2018-08-16 | Method for repairing reserved gap of building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810935548.3A CN109057389B (en) | 2018-08-16 | 2018-08-16 | Method for repairing reserved gap of building |
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| Publication Number | Publication Date |
|---|---|
| CN109057389A CN109057389A (en) | 2018-12-21 |
| CN109057389B true CN109057389B (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810935548.3A Active CN109057389B (en) | 2018-08-16 | 2018-08-16 | Method for repairing reserved gap of building |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113404326A (en) * | 2021-08-04 | 2021-09-17 | 肖长程 | Method for repairing floor cracks by using steel plates |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2895572Y (en) * | 2006-04-28 | 2007-05-02 | 曹世龙 | Composite water-stopping belt |
| CN106223496A (en) * | 2016-09-20 | 2016-12-14 | 中建八局第四建设有限公司 | A kind of post-cast strip antiseepage grouting device |
| CN107060116A (en) * | 2017-06-16 | 2017-08-18 | 潍坊学院 | A kind of high-pressure slip-casting blocking method stitched for building settlement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1490102A (en) * | 1975-09-08 | 1977-10-26 | Balfour Beatty Ltd | Artificial and natural structures |
| CN103015538B (en) * | 2011-09-22 | 2016-08-03 | 江苏鼎达建筑新技术有限公司 | The percolator of a kind of concrete structure deformation joint and method for treating seepage |
| CN103321255A (en) * | 2013-07-19 | 2013-09-25 | 中冶建工集团有限公司 | Underground concrete structural engineering joint waterproof construction method |
| CN107975153A (en) * | 2016-10-24 | 2018-05-01 | 俞岳峰 | A kind of roof deformation stitches processing structure |
| CN206428985U (en) * | 2016-12-19 | 2017-08-22 | 四川东方雨虹防水工程有限公司 | A kind of local antiseep repairing structure of positively fixed type roofing |
| CN107313791A (en) * | 2017-08-01 | 2017-11-03 | 广东遂达工程技术有限公司 | The elasticity grouting back-pressure sealing structure and its construction method at a kind of expansion joint |
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2018
- 2018-08-16 CN CN201810935548.3A patent/CN109057389B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2895572Y (en) * | 2006-04-28 | 2007-05-02 | 曹世龙 | Composite water-stopping belt |
| CN106223496A (en) * | 2016-09-20 | 2016-12-14 | 中建八局第四建设有限公司 | A kind of post-cast strip antiseepage grouting device |
| CN107060116A (en) * | 2017-06-16 | 2017-08-18 | 潍坊学院 | A kind of high-pressure slip-casting blocking method stitched for building settlement |
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| CN109057389A (en) | 2018-12-21 |
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