CN111636710A - Method and structure for anchoring and repairing concrete and mortar dynamic cracks - Google Patents
Method and structure for anchoring and repairing concrete and mortar dynamic cracks Download PDFInfo
- Publication number
- CN111636710A CN111636710A CN202010468357.8A CN202010468357A CN111636710A CN 111636710 A CN111636710 A CN 111636710A CN 202010468357 A CN202010468357 A CN 202010468357A CN 111636710 A CN111636710 A CN 111636710A
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- Prior art keywords
- shaped
- mortar
- concrete
- cracks
- anchor
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- 239000004567 concrete Substances 0.000 title claims abstract description 42
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004873 anchoring Methods 0.000 title claims abstract description 21
- 239000000126 substance Substances 0.000 claims abstract description 25
- 239000003292 glue Substances 0.000 claims abstract description 24
- 239000011433 polymer cement mortar Substances 0.000 claims abstract description 12
- 241001079814 Symphyotrichum pilosum Species 0.000 claims abstract description 10
- 235000004224 Typha angustifolia Nutrition 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 241000587161 Gomphocarpus Species 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 230000008602 contraction Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- 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 and a structure for anchoring and repairing concrete and mortar dynamic cracks, wherein the method comprises the following steps: step 1: identifying a crack; step 2: removing cracks on the surface of the concrete or mortar, and cutting and widening the concrete or mortar into V-shaped grooves; and step 3: marking the installation position of the T-shaped anchor in the V-shaped groove; and 4, step 4: drilling at the T-shaped anchor installation position marked in the step 3, wherein the depth of the drilled hole is determined according to the length of the rod of the T-shaped anchor; and 5: cleaning the V-shaped groove and the drilled hole; step 6: filling high-viscosity chemical glue in the drill hole; and 7: installing a T-shaped anchor, and enabling a nail rod of the T-shaped anchor to be inserted into the drilled hole until a nail head of the T-shaped anchor is in contact with the groove wall of the V-shaped groove; step eight: filling the nail head of the T-shaped anchor with high-viscosity chemical glue; step nine: the V-shaped groove is filled with polymer cement mortar, and then the surface is cleaned. The invention realizes the aim of repairing concrete and mortar cracks.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a method and a structure for anchoring and repairing concrete and mortar dynamic cracks.
Background
When concrete or mortar cracks, the prior art is to perform resin sealing, resin grouting, resin filling with V-shaped grooves and other treatment methods on the concrete and mortar cracks. The methods have the disadvantages that the method cannot play a substantial restraint role in controlling and expanding the cracks, only seals and heals and fills the concrete cracks, has higher requirements on cleaning the cracks and interface cleaning and strength. The problems of surface sealing cracks, grouting filling cracks and V-shaped groove embedding cracks are that dynamic cracks continue to appear. The interface is a weak node, a crack may be changed into two cracks, and the problem of the crack cannot be thoroughly solved.
Therefore, the applicant submits an invention patent application related to a concrete crack treatment technology to the intellectual property office of China on the 12 th 9 th 2018, wherein the application number is CN201810584742.1, and the technology comprises the following steps: (1) designing, selecting and arranging a high-strength restraint band; (2) duplicating the position of the high-strength restraint band on the surface of the concrete; (3) punching and cutting the high-strength restraint belt to be embedded; (4) cleaning the holes and cutting seams; (5) preparing resin and pouring the resin; (6) installing a high-strength restraint belt; (7) sealing the high-strength restraint band and the original cracks; the high-strength restraint strap comprises two anchoring pieces and a connecting part for connecting the anchoring pieces, wherein the connecting part is made of a composite material of a carbon fiber woven strap and resin. However, in the actual use process, the repairing effect on the cracks is not ideal.
Disclosure of Invention
One of the technical problems to be solved by the present invention is to provide a method for repairing concrete and mortar dynamic cracks by anchoring, aiming at the problems existing in the existing concrete and mortar dynamic crack repairing. The crack repairing method solves the problems that cracks of an outer wall, the ground, concrete and mortar are restrained under the influence of temperature difference and the change of the humidity of an external air environment, the cracks are increased and reduced in dynamic change due to repeated expansion and contraction, and the aim of repairing the cracks of the concrete and the mortar is fulfilled.
The second technical problem to be solved by the invention is to provide a structure for anchoring and repairing concrete and mortar dynamic cracks aiming at the problems existing in the existing concrete and mortar dynamic crack repair. The crack repairing method solves the problems that cracks of an outer wall, the ground, concrete and mortar are restrained under the influence of temperature difference and the change of the humidity of an external air environment, the cracks are increased and reduced in dynamic change due to repeated expansion and contraction, and the aim of repairing the cracks of the concrete and the mortar is fulfilled.
The method for anchoring and repairing concrete and mortar dynamic cracks as the first aspect of the invention comprises the following steps:
step 1: identifying a crack;
step 2: removing cracks on the surface of the concrete or mortar, and cutting and widening the concrete or mortar into V-shaped grooves;
and step 3: marking the installation position of the T-shaped anchor in the V-shaped groove;
and 4, step 4: drilling at the T-shaped anchor installation position marked in the step 3, wherein the depth of the drilled hole is determined according to the length of the rod of the T-shaped anchor;
and 5: cleaning the V-shaped groove and the drilled hole;
step 6: filling high-viscosity chemical glue in the drill hole; filling the drill hole with high-viscosity chemical glue;
and 7: installing a T-shaped anchor, and enabling a nail rod of the T-shaped anchor to be inserted into the drilled hole until a nail head of the T-shaped anchor is in contact with the groove wall of the V-shaped groove;
step eight: filling the nail head of the T-shaped anchor with high-viscosity chemical glue;
step nine: the V-shaped groove is filled with polymer cement mortar, and then the surface is cleaned.
In a preferred embodiment of the present invention, in step 2, if the facing material is present, the facing material is removed along the crack by about 10 centimeters wide.
In a preferred embodiment of the present invention, in step 2, cracks on the surface of the concrete or mortar are removed using a disc sander equipped with a dust collector, and V-shaped grooves are cut and widened;
as a second aspect of the present invention, a structure for anchoring and repairing concrete and mortar dynamic cracks includes:
removing cracks on the surface of the concrete or mortar, and cutting and widening the formed V-shaped groove;
a hole drilled at the bottom of the V-shaped groove;
filling the high-viscosity chemical glue in the holes;
the rivet rod of the T-shaped rivet is inserted into the hole, and the rivet head of the T-shaped rivet is positioned in the V-shaped groove and is in contact with the groove wall of the V-shaped groove;
the high-viscosity chemical glue is filled in the V-shaped groove and completely covers the nail head of the T-shaped anchor;
and polymer cement mortar filled in the V-shaped groove and completely covering the high-viscosity chemical glue, wherein the V-shaped groove is filled with the polymer cement mortar.
In a preferred embodiment of the invention, the outer circumference of the shank of the T-shaped anchor is in a screw shape, a concave-convex shape or a bamboo joint shape. Thus, the nail rod of the T-shaped anchoring nail can be tightly combined with the hole wall of the hole through high-viscosity chemical glue.
Due to the adoption of the technical scheme, the method for burying the T-shaped anchor in the crack is considered from the three-dimensional angle constraint, and the dynamic crack is repaired. Is a repair method by restricting the behavior of the fracture.
According to the method, the V-shaped seam is cut along the seam, the T-shaped anchor is anchored by the chemical glue, and the polymer cement mortar is filled in the V-shaped seam, so that the problem that the cracks of the outer wall, the ground, the concrete and the mortar are increased and reduced in dynamic change due to repeated expansion and contraction under the influence of temperature difference and the change of the humidity of the external air environment is solved, and the aim of repairing the cracks of the concrete and the mortar is fulfilled.
The invention adopts a method of cutting V-shaped seams, arranging T-shaped anchors for chemical anchoring, and filling the V-shaped seams with polymer cement mortar. The method comprises the steps of forming V-shaped seams on crack weakened concrete and mortar, embedding and installing T-shaped anchor bolts at regular intervals along the cracks, anchoring the T-shaped anchor bolts into the cracks through chemical glue, restraining cracking behaviors through the embedded T-shaped anchor bolts, and filling polymer cement mortar at V-shaped cutting positions of the T-shaped anchor bolts, wherein the performance of the polymer cement mortar is similar to that of a concrete structure.
The high-viscosity chemical glue is filled in the hole, so that the nail rod of the T-shaped anchor nail in the hole is in a bar planting state, and the outer periphery of the nail rod of the T-shaped anchor nail is in a screw rod shape, a concave-convex shape or a bamboo joint shape. Thus, the nail rod of the T-shaped anchoring nail can be tightly combined with the hole wall of the hole through high-viscosity chemical glue.
Drawings
FIG. 1 is a schematic structural diagram of the anchoring repair of concrete and mortar dynamic cracks.
Detailed Description
The invention is further described below in conjunction with the appended drawings and detailed description.
Referring to fig. 1, the method for anchoring and repairing concrete and mortar dynamic cracks of the invention comprises the following steps:
step 1: identification of the crack 10;
step 2: removing cracks on the surface of the concrete or mortar by using a disc type sander provided with a dust collector, and cutting and widening a V-shaped groove 20; if a facing material, such as tile, is present, the facing material is removed along the crack 10 approximately 10 centimeters wide.
And step 3: marking the installation position of the T-shaped anchor 30 in the V-shaped groove 20;
and 4, step 4: drilling a hole 40 at the installation position of the T-shaped anchor 30 marked in the step 3, wherein the depth of the hole 40 is determined according to the length of the rod of the T-shaped anchor 30;
and 5: cleaning the V-groove 20 and the drilled hole 40;
step 6: filling high-viscosity chemical glue 50 in the drill hole 40; the high-viscosity chemical glue 50 is filled in the drill hole 40, so that the nail rod 31 of the T-shaped anchor 30 in the hole is in a bar planting state;
and 7: installing the T-shaped anchor 30 and enabling the nail rod 31 of the T-shaped anchor 30 to be inserted into the drilled hole 40 until the nail head 32 of the T-shaped anchor 30 is in contact with the groove wall of the V-shaped groove 20; the outer peripheral surface of the screw rod 31 of the T-shaped anchor 30 is in a screw rod shape, a concave-convex shape or a bamboo joint shape. So that the shank 31 of the T-shaped anchor 30 can be tightly combined with the hole wall of the drilled hole 40 by the high-viscosity chemical glue 50;
step eight: filling the head 32 of the T-tag anchor 30 with a high viscosity chemical glue 60;
step nine: the V-shaped groove 20 is filled with polymer cement mortar 70, and then the surface is cleaned, and finally a structure for anchoring and repairing concrete and mortar dynamic cracks is formed.
Claims (5)
1. A method for anchoring and repairing concrete and mortar dynamic cracks is characterized by comprising the following steps:
step 1: identifying a crack;
step 2: removing cracks on the surface of the concrete or mortar, and cutting and widening the concrete or mortar into V-shaped grooves;
and step 3: marking the installation position of the T-shaped anchor in the V-shaped groove;
and 4, step 4: drilling at the T-shaped anchor installation position marked in the step 3, wherein the depth of the drilled hole is determined according to the length of the rod of the T-shaped anchor;
and 5: cleaning the V-shaped groove and the drilled hole;
step 6: filling high-viscosity chemical glue in the drill hole; filling the drill hole with high-viscosity chemical glue;
and 7: installing a T-shaped anchor, and enabling a nail rod of the T-shaped anchor to be inserted into the drilled hole until a nail head of the T-shaped anchor is in contact with the groove wall of the V-shaped groove;
step eight: filling the nail head of the T-shaped anchor with high-viscosity chemical glue;
step nine: the V-shaped groove is filled with polymer cement mortar, and then the surface is cleaned.
2. The method of claim 1 wherein in step 2, if the facing material is present, the facing material is removed about 10 cm wide along the fracture.
3. The method for anchor repairing of concrete and mortar dynamic cracks according to claim 1, wherein in step 2, a disc sander equipped with a dust collector is used to remove cracks on the surface of concrete or mortar, and V-shaped grooves are cut and widened.
4. A structure for anchoring and repairing concrete and mortar dynamic cracks, comprising:
removing cracks on the surface of the concrete or mortar, and cutting and widening the formed V-shaped groove;
a hole drilled at the bottom of the V-shaped groove;
filling the high-viscosity chemical glue in the holes;
the rivet rod of the T-shaped rivet is inserted into the hole, and the rivet head of the T-shaped rivet is positioned in the V-shaped groove and is in contact with the groove wall of the V-shaped groove;
the high-viscosity chemical glue is filled in the V-shaped groove and completely covers the nail head of the T-shaped anchor;
and polymer cement mortar filled in the V-shaped groove and completely covering the high-viscosity chemical glue, wherein the V-shaped groove is filled with the polymer cement mortar.
5. The structure for anchoring and repairing concrete and mortar dynamic cracks as claimed in claim 4, wherein the outer circumference of the shank of the T-shaped anchor is in a screw shape, a concave-convex shape or a bamboo joint shape. Thus, the nail rod of the T-shaped anchoring nail can be tightly combined with the hole wall of the hole through high-viscosity chemical glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010468357.8A CN111636710A (en) | 2020-05-28 | 2020-05-28 | Method and structure for anchoring and repairing concrete and mortar dynamic cracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010468357.8A CN111636710A (en) | 2020-05-28 | 2020-05-28 | Method and structure for anchoring and repairing concrete and mortar dynamic cracks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111636710A true CN111636710A (en) | 2020-09-08 |
Family
ID=72328331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010468357.8A Pending CN111636710A (en) | 2020-05-28 | 2020-05-28 | Method and structure for anchoring and repairing concrete and mortar dynamic cracks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111636710A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343107A (en) * | 2020-11-11 | 2021-02-09 | 福州盛世凌云环保科技有限公司 | Anchoring type concrete crack repairing method |
| CN114892466A (en) * | 2022-05-24 | 2022-08-12 | 新疆北新科技创新咨询有限公司 | Road gap filling and repairing structure |
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| CN2474576Y (en) * | 2001-05-09 | 2002-01-30 | 衡水橡胶股份有限公司 | Embedded elasticoplastic body expansion device |
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| CN104060704A (en) * | 2013-03-22 | 2014-09-24 | 贵州中建建筑科研设计院有限公司 | Mechanical repairing method and structure for hollowing of thermal insulation mortar of outer wall |
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| CN206521955U (en) * | 2017-01-20 | 2017-09-26 | 无锡市城归设计有限责任公司 | A kind of Rebar bonding device |
| CN107975249A (en) * | 2016-10-24 | 2018-05-01 | 俞岳峰 | A kind of crack repairing method of concrete walls or terrace |
| CN109113350A (en) * | 2018-09-18 | 2019-01-01 | 蔡启中 | A kind of decorative panel for building anchoring process |
| CN213626779U (en) * | 2020-05-28 | 2021-07-06 | 上海天补材料科技有限公司 | Structure for anchoring and repairing concrete and mortar dynamic cracks |
-
2020
- 2020-05-28 CN CN202010468357.8A patent/CN111636710A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11280231A (en) * | 1998-03-30 | 1999-10-12 | Comany Kk | Decorative panel adhering construction to concrete wall face, and adhering method thereof |
| CN2474576Y (en) * | 2001-05-09 | 2002-01-30 | 衡水橡胶股份有限公司 | Embedded elasticoplastic body expansion device |
| CN103132707A (en) * | 2011-12-02 | 2013-06-05 | 贵州中建建筑科研设计院有限公司 | Repairing method and structure for building wall crack |
| CN203034334U (en) * | 2012-11-30 | 2013-07-03 | 浙江信博城市建设有限公司 | Crack repairing structure for asphalt concrete pavement |
| CN105829610A (en) * | 2012-12-13 | 2016-08-03 | 瑞杰德格兰德私人有限公司 | Treating particulate and connecting slab portions |
| CN104060704A (en) * | 2013-03-22 | 2014-09-24 | 贵州中建建筑科研设计院有限公司 | Mechanical repairing method and structure for hollowing of thermal insulation mortar of outer wall |
| CN107975249A (en) * | 2016-10-24 | 2018-05-01 | 俞岳峰 | A kind of crack repairing method of concrete walls or terrace |
| CN206521955U (en) * | 2017-01-20 | 2017-09-26 | 无锡市城归设计有限责任公司 | A kind of Rebar bonding device |
| CN109113350A (en) * | 2018-09-18 | 2019-01-01 | 蔡启中 | A kind of decorative panel for building anchoring process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343107A (en) * | 2020-11-11 | 2021-02-09 | 福州盛世凌云环保科技有限公司 | Anchoring type concrete crack repairing method |
| CN114892466A (en) * | 2022-05-24 | 2022-08-12 | 新疆北新科技创新咨询有限公司 | Road gap filling and repairing structure |
| CN114892466B (en) * | 2022-05-24 | 2023-10-31 | 新疆北新科技创新咨询有限公司 | Road gap filling and repairing structure |
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