CN101775908B - Method for preventing and maintaining wall cracks - Google Patents
Method for preventing and maintaining wall cracks Download PDFInfo
- Publication number
- CN101775908B CN101775908B CN2010100011525A CN201010001152A CN101775908B CN 101775908 B CN101775908 B CN 101775908B CN 2010100011525 A CN2010100011525 A CN 2010100011525A CN 201010001152 A CN201010001152 A CN 201010001152A CN 101775908 B CN101775908 B CN 101775908B
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- wall
- wall body
- hole
- holes
- maintaining
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Abstract
The invention relates to a method for preventing wall cracks and a method for maintaining the wall cracks. Before decoration, the method for preventing wall cracks comprises the following steps of: punching on the centre lines of wall cracks, wherein the distribution control method of holes is characterized in that the holes are distributed at the positions which are respectively 90 to 120mm distant from both ends of each crack; the holes are evenly distributed, and the hole distance is 400 to 700mm; the hole diameter is larger than or equal to the width of a mortar joint between the two-time structures of a main work, and the hole depth is larger than or equal to a half of the wall thickness; after the holes are flushed and moistened, cement mortar is utilized to fill the holes punched by an electric hammer and is tamped and trowelled; brushing punched wall surfaces by plain cement paste, and scraping modulated dry binding powder; and pressing a fiber web into the scraped dry binding powder and trowelling. After decoration, a method for the maintaining wall cracks comprises the following steps of: removing the original ornaments of the surface layer of the wall, and then operating according to the steps. The invention has simple operation and low cost. After the cement mortar in the holes is swelled, the two-time structures are tightly combined together by each contact; when shake is built, the two-time structures become one, thereby effectively preventing the wall cranks from happening for the second time.
Description
Technical field
The present invention relates to a kind of method for maintaining of wall body slit, particularly relate between civil works primary structure and the secondary structure, or the junction of two kinds of different materials in the body of wall, such as the method for maintaining of fields such as infilled wall, partition board, breast, construction hole prevention wall body slit and wall body slit.
Background technology
Along with improving constantly of living standards of the people, people are more and more exquisite to house decoration, and are very general but crack phenomenon appears in exquisite finishing, because the crack is caused the body of wall seepage, both influenced attractive in appearancely, also brought unsafe suffering to the owner.China's building trade is being taked many technical measures aspect the processing wall body slit at present, for example: built-in wall lacing wire when building by laying bricks or stones, the concrete strip is set, sticks with paste kraft etc. when adding lead wire net, fine fitment before plastering, because the deficiency that these methods exist all that crack treatment is not in place, lacing wire, strip can not combine two aggregated(particle) structures together is although taked the multiple technologies measure.After after a while still the crack can appear.Not only bring many worries to people, and caused many quality disputes by the crack, tip-offs about environmental issues frequently take place.Yet there are no the report that can effectively prevent crack and maintenance crack method up to now through retrieval.
Cause the reason of wall body slit to be: to produce the crack behind the mortar seam drying shrinkage between major project two aggregated(particle) structures, can access temporary transient solution behind the finishing of this crack, but do the time spent and can take place slightly to rock because building is subjected to external force, because between two aggregated(particle) structures slit is arranged, the asynchronous motion with secondary structure of primary structure of building when taking place slightly to rock is so caused new wall body slit.
Summary of the invention
The present invention is directed to various reasons that the crack occurs and many deficiencies of prior art, provide a kind of and on the center line in slit, use electric hammer punching, use the prevention wall body slit of mortar plug-hole and the method for maintaining of wall body slit then.
Realize that the above-mentioned purpose technical scheme is: a kind of method for maintaining that prevents wall body slit and wall body slit, comprise the preceding method for maintaining that prevents wall body slit and finishing back wall crack of finishing,
(1) method step of prevention wall body slit is before the finishing:
A. punching: on the center line of wall body slit, punch, the cloth control method in hole is: by the two ends in every crack respectively setback 90-120mm begin the cloth hole, pitch-row: 400-700mm is uniform, aperture: more than or equal to the width of mortar joint between major project two aggregated(particle) structures, hole depth: more than or equal to 1/2 thickness of wall body;
B. plug-hole: in the hole bath moistening, the hole of directly using 1: 2 cement mortar progressively step a to be beaten is stifled completely, tamping, scabble;
C. handle metope: the metope after the punching is brushed the wide plain-water slurry setting course of 200mm one, scrapes the bonding dry powder that modulates that 1-2mm is thick, 200mm is wide, and then that 200mm is wide fleece is pressed in the bonding dry powder of having scraped floating with trowel;
(2) the wall body slit method for maintaining behind the finishing: at first remove the former ornament that body of wall top layer 1-2mm is thick, 200mm is wide, then, operate according to a, b, c step in above-mentioned (1).
Compared with prior art, the present invention directly punches on the center line in crack with electric hammer, and simple to operate, cost is low.Block up real cement mortar in the hole, cement mortar makes each contact point that two aggregated(particle) structures are closely linked after expanding, and when building rocks, two aggregated(particle) structures is become one, and this method has been avoided the generation once more of wall body slit effectively.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Present embodiment is the method for prevention wall body slit and maintenance wall body slit.The concrete operations step is:
1, on the center line in crack, use electric hammer punching, the cloth control method in hole: by the two ends in every crack respectively setback 90-120mm begin the cloth hole, pitch-row: 400-700mm is uniform, and fracture length is during less than 400mm, and every lacinia is sewed on and is no less than 2 holes.The aperture of electric hammer boring: more than or equal to the width of mortar joint between major project two aggregated(particle) structures.Hole depth: thick more than or equal to 1/2 body of wall degree.
2, plug-hole: in the hole bath moistening, directly use 1: 2 cement mortar, the eyelet that electric hammer is beaten is progressively stifled full, treat that mortar moisture is absorbed after, tamping is stifled fuller, treats to scabble after mortar moisture is absorbed.
3, handle metope: one 200mm of metope brush plain-water slurry setting course after the punching is wide, scrape that 1-2mm is thick, the wide exterior-wall heat insulation bonding dry powder pasty mixture that modulates of 200mm, then that 200mm is wide exterior wall grid cloth is pressed into the exterior-wall heat insulation of having scraped with trowel and is bonded in the powder pasty mixture floating.
4, the wall body slit method for maintaining behind the finishing: at first remove the thick former ornament of body of wall top layer 1-2mm, end to the face of plastering, operate according to the step of the punching of above-mentioned 1-3 step, plug-hole, processing metope then.
The processing method of other top-crack: base treatment, scrape the wide modulated bonding dry powder that makes of 200mm, it is floating to be pressed into the exterior wall grid cloth then, and simple process gets final product.
When the aperture of punching during greater than 30mm, directly use C30 pea gravel concreten plug-hole, tamping, scabble.The plain-water slurry plug-hole is used during less than 10mm in the aperture,, scabbles its tamping with reinforcing rod.
The cement that uses in the C30 pea gravel concreten that above-mentioned plug-hole uses, 1: 2 cement mortar, the plain-water slurry is the Portland cement more than 32.5.This cement must add expansion agent UEA, and the weight ratio of cement and expansion agent UEA is 100: 5.The expansion agent UEA that the present invention uses is the commodity of directly buying from the market.
The modulator approach of exterior-wall heat insulation bonding dry powder is: get exterior-wall heat insulation bonding dry powder, according to weight percent meter: 100 kilograms of exterior-wall heat insulation bonding dry powder add 50 kg of water, and it is stirred into pasty mixture with agitator.Exterior-wall heat insulation bonding dry powder can directly be bought from market.The exterior wall grid cloth also is the commodity of directly buying.
The present invention is through the practice test in spring, summer, autumn, winter, success rate 100%.Solved the technical barrier that always perplexs our builing industry wall body slit maintenance.
More than disclosed only be specific embodiments of the invention; though the present invention discloses as above with preferred embodiment; but the present invention is not limited thereto; any those skilled in the art can think variation; in not breaking away from design philosophy of the present invention and scope; the present invention is carried out various changes and retouching, all should drop within protection scope of the present invention.
Claims (2)
1. a method for maintaining that prevents wall body slit and wall body slit comprises finishing preceding prevention wall body slit and fits up the method for maintaining in back wall crack, it is characterized in that:
(1) method step of prevention wall body slit is before the finishing:
A. punching: on the center line of wall body slit, punch, the cloth control method in hole is: by the two ends in every crack respectively setback 90-120mm begin the cloth hole, pitch-row: 400-700mm is uniform, aperture: more than or equal to the width of mortar joint between major project two aggregated(particle) structures, hole depth: more than or equal to 1/2 thickness of wall body;
B. plug-hole: in the hole bath moistening, the hole of directly using 1: 2 cement mortar progressively step a to be beaten is stifled completely, tamping, scabble;
C. handle metope: the metope after the punching is brushed the wide plain-water slurry setting course of 200mm one, scrapes the bonding dry powder that modulates that 1-2mm is thick, 200mm is wide, and then that 200mm is wide fleece is pressed in the bonding dry powder of having scraped floating with trowel;
(2) the wall body slit method for maintaining behind the finishing: at first remove the former ornament that body of wall top layer 1-2mm is thick, 200mm is wide, then, operate according to a, b, c step in above-mentioned (1).
2. the method for maintaining of prevention wall body slit according to claim 1 and wall body slit is characterized in that, when fracture length during less than 400mm, every lacinia is sewed on and made a call to 2 holes at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100011525A CN101775908B (en) | 2010-01-14 | 2010-01-14 | Method for preventing and maintaining wall cracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100011525A CN101775908B (en) | 2010-01-14 | 2010-01-14 | Method for preventing and maintaining wall cracks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101775908A CN101775908A (en) | 2010-07-14 |
| CN101775908B true CN101775908B (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100011525A Expired - Fee Related CN101775908B (en) | 2010-01-14 | 2010-01-14 | Method for preventing and maintaining wall cracks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101775908B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6416784B2 (en) * | 2013-01-07 | 2018-10-31 | シーカ・テクノロジー・アーゲー | How to repair a cement system |
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2010
- 2010-01-14 CN CN2010100011525A patent/CN101775908B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101775908A (en) | 2010-07-14 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20210114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |