CN100523408C - Building wall crack repairing method - Google Patents
Building wall crack repairing method Download PDFInfo
- Publication number
- CN100523408C CN100523408C CNB2008100374589A CN200810037458A CN100523408C CN 100523408 C CN100523408 C CN 100523408C CN B2008100374589 A CNB2008100374589 A CN B2008100374589A CN 200810037458 A CN200810037458 A CN 200810037458A CN 100523408 C CN100523408 C CN 100523408C
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- CN
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- Prior art keywords
- crack
- clay
- building wall
- type groove
- cracks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000011049 filling Methods 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 5
- 239000004927 clay Substances 0.000 claims description 34
- 238000005336 cracking Methods 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 238000007667 floating Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000004570 mortar (masonry) Substances 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 238000004078 waterproofing Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- FSLGRPCWSUDGGH-UHFFFAOYSA-N 2-methylnaphthalene-1-sulfonic acid;sodium Chemical compound [Na].C1=CC=CC2=C(S(O)(=O)=O)C(C)=CC=C21 FSLGRPCWSUDGGH-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003412 degenerative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- GNHOJBNSNUXZQA-UHFFFAOYSA-J potassium aluminium sulfate dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GNHOJBNSNUXZQA-UHFFFAOYSA-J 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A method for repairing cracks of a building wall comprises the following steps: cleaning cracks; forming a V-shaped groove along the crack, wherein the width to depth ratio of the V-shaped groove is more than or equal to 2 to 1, and the minimum depth of the V-shaped groove is not less than 10 mm; preparing the daub; filling cement into the crack; the crack surface after repairing is coated with anti-crack waterproof glue and is internally clamped with anti-crack reinforcing cloth. The method is used for repairing independent cracks of exterior facings such as concrete, plastering mortar and heat insulation systems, filling gaps at the interface of a self-insulation frame beam and a filling wall and the like, has high bonding strength after crack repair, good adhesive force with a base layer, high tensile strength and good toughness, does not crack after crack repair, can be closed according to the change of the cracks, and effectively controls and covers the cracks.
Description
Technical field
Patent of the present invention relates to the civil engineering technical field, the concrete method for repairing and mending that relates to a kind of building wall body slit.
Background technology
Concrete structure is big owing to its fragility, the often inevitable cracking that produces in engineering is used, and this cracking causes the decline of concrete structure watertightness, seepage, influences the application life of engineering, even can't normally use.This is the ubiquitous problem in building circle.The generation in crack mainly contains two big class reasons in the concrete structure, and a class is caused by distortion, comprises because of temperature humidity changes causing contraction, expansion, differential settlement etc.; Another kind of is that external load (dynamic and static load) direct stress causes that according to statistics, the former is a principal element, accounts for 75%.The analysis of causes that produces cracking from concrete structure is set about, and it is imperative to develop novel waterproofing materials.
At present, waterproofing materials is numerous, can be divided into flexible water and rigid waterproofing two big classes.In external for many years facts have proved that traditional flexible waterproof material such as coiled material and coating are though have flexibility characteristics, durability is also better, but a little less than basal plane concrete binding power, especially moist or have under the situation of infiltration and can't use at basal plane, should not make the waterproof of back side and moist basal plane.The rigidity cement group water-proofing material has the incomparable performance of flexible material and extensive use, but the most of metal surface water-tight of the cement group water-proofing material that generally uses agent at present, waterproof effect only acts on the surface, can not automatically, in depth be penetrated into inside configuration; Waterproof effect is not lasting, and produce the degenerative process that continues as time passes: in case waterproof coating is destroyed, waterproof ability is lost thereupon: easily cause concrete generation alkali weakness such as (AAR).Think from concrete structure cracking reason, engineering application characteristic and fire resistance characteristic, develop have the microscopic checks self-healing, penetrant crystalline, can be very necessary at the permanent cement base osmotic crystalline waterproof material of characteristics such as back side construction.
Summary of the invention
Technical problem to be solved by this invention is, overcomes problems of the prior art, and a kind of method for repairing and mending of building wall body slit is provided.
In order to address the above problem technical scheme of the present invention is such:
A kind of method for mending building wall body slit is characterized in that, comprises the steps:
The cleaning crack;
Open the V-type groove along the crack; The width of described V-type groove: depth ratio is more than or equal to 2:1, and its minimum-depth must not be less than 10mm;
The preparation clay;
To crack pointing clay;
Mend the back fracture faces and be coated with folder cracking resistance reinforcement cloth in the anti-cracking waterproof glue.
In the step of described cleaning crack, require the crack not have loose, floating grey, the free of frost of nothing, the crack substrate surface is firm.
The width of described V-type groove: depth ratio is more than or equal to 2:1, and its minimum-depth must not be less than 10mm.Clay is fully soaked in the crack, guaranteed the action space of clay, make clay better mend a split.
In the described preparation clay step, the clay for preparing forbids being with once more water to go into interior or thin up, after the clay preparation stirs, leaves standstill after 15 minutes and uses.
Described in the pointing clay step of crack, pick the wetting V-type groove of the clay that stirs with the undercoat brush earlier, with the direct pointing of the clay crack that stirs, make clay stick V-type groove both sides with putty knife raking both sides earlier during the pointing crack then, filling up in the middle of the groove last floating surface; When protruding phenomenon appearred in the V-type groove in solidification process, compacting got final product behind surface drying.
The both sides that described cracking resistance is strengthened cloth surpass the minimum 10mm of crack width, and the coating scope of anti-cracking waterproof glue surpasses cracking resistance and strengthens cloth both sides 5mm.Can fully guarantee the stability in crack like this, can also protect the crack after repairing simultaneously, prevent the crack that rainwater or damage are repaired.
Beneficial effect: method of the present invention is used for that outside finish independence cracks such as concrete, whitewash mortar, heat-insulation system are repaired and the filling in self-heat conserving Vierendeel girder and infilled wall interface slit etc., adhesion strength height after squeegeeing, has good adhesive with basic unit, the hot strength height, good toughness, do not ftracture after squeegeeing, can repair crack and filling pore automatically, effectively control and cover crackle according to the variation in crack.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
A kind of method for mending building wall body slit comprises the steps: to clean the crack; Open the V-type groove along the crack; The preparation clay; To crack pointing clay; Mend the back fracture faces and be coated with folder cracking resistance reinforcement cloth in the TB-999 anti-cracking waterproof glue.
In the step of described cleaning crack, can adopt instruments such as steel brush, the cleaning crack requires the crack not have loose, floating grey, the free of frost of nothing, and the crack substrate surface is firm.
The width of described V-type groove: depth ratio is decided according to actual conditions, but its width: and the degree of depth needs than more than or equal to 2: 1, and its minimum-depth must not be less than 10mm.Clay is fully soaked in the crack, guaranteed the action space of clay, make clay better mend a split.
In the described preparation clay step, clay has main component and ratio to be:
Portland cement 100
Methyl naphthalene sulfonic acid sodium condensation product 2-4
Aqueous silane/silicone emulsion (solid content) 10-20
Calcium hydroxide 12-20
Magnesium hydroxide 12-20
Swell soil 18-25
Quartz sand 60-80
Potassium aluminum sulfate dodecahydrate 18-25
Silicate of soda 4-6
Before the clay preparation is pulvis.During preparation, stir during preparation, leave standstill after 15 minutes and use, the clay for preparing forbids being with once more water to go into interior or thin up.
Described in the pointing clay step of crack, pick the wetting V-type groove of the clay that stirs with the undercoat brush earlier, with the direct pointing of the clay crack that stirs, make clay stick V-type groove both sides with putty knife raking both sides earlier during the pointing crack then, filling up in the middle of the groove last floating surface; When protruding phenomenon appearred in the V-type groove in solidification process, compacting got final product behind surface drying.
Technical performance that the present invention can reach such as following table:
Project | Performance indications |
Surface drying time (h) | 6 |
Do solid work the time (h) | 72 |
Extensibility (%) | 45 |
Hot strength (mpa) | 1.15 |
Adhesion strength (mpa) | 1.2 |
Method of the present invention is used for that outside finish independence cracks such as concrete, whitewash mortar, heat-insulation system are repaired and the filling in self-heat conserving Vierendeel girder and infilled wall interface slit etc., adhesion strength height after squeegeeing, has good adhesive with basic unit, the hot strength height, good toughness, do not ftracture after squeegeeing, can repair crack and filling pore automatically, effectively control and cover crackle according to the variation in crack.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the manual just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1, a kind of method for mending building wall body slit is characterized in that, comprises the steps:
The cleaning crack;
Open the V-type groove along the crack; The width of described V-type groove: depth ratio is more than or equal to 2:1, and its minimum-depth must not be less than 10mm;
The preparation clay;
To crack pointing clay;
Mend the back fracture faces and be coated with folder cracking resistance reinforcement cloth in the anti-cracking waterproof glue.
2, a kind of method for mending building wall body slit according to claim 1 is characterized in that, in the step of described cleaning crack, requires the crack not have loose, floating grey, the free of frost of nothing, and the crack substrate surface is firm.
3, a kind of method for mending building wall body slit according to claim 1 is characterized in that, in the described preparation clay step, the clay for preparing forbids being with once more water to go into interior or thin up, after the clay preparation stirs, leaves standstill after 15 minutes and uses.
4, a kind of method for mending building wall body slit according to claim 1, it is characterized in that, described in the pointing clay step of crack, pick the wetting V-type groove of the clay that stirs with the undercoat brush earlier, then with the direct pointing of the clay crack that stirs, earlier make clay stick V-type groove both sides during the pointing crack, filling up in the middle of the groove last floating surface with putty knife raking both sides; When protruding phenomenon appearred in the V-type groove in solidification process, compacting got final product behind surface drying.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2008100374589A CN100523408C (en) | 2008-05-15 | 2008-05-15 | Building wall crack repairing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2008100374589A CN100523408C (en) | 2008-05-15 | 2008-05-15 | Building wall crack repairing method |
Publications (2)
Publication Number | Publication Date |
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CN101275435A CN101275435A (en) | 2008-10-01 |
CN100523408C true CN100523408C (en) | 2009-08-05 |
Family
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CNB2008100374589A Expired - Fee Related CN100523408C (en) | 2008-05-15 | 2008-05-15 | Building wall crack repairing method |
Country Status (1)
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CN (1) | CN100523408C (en) |
Cited By (1)
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