CN104405130A - Method for preventing masonry rear embedded wire tube position from cracking - Google Patents
Method for preventing masonry rear embedded wire tube position from cracking Download PDFInfo
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- CN104405130A CN104405130A CN201410777894.5A CN201410777894A CN104405130A CN 104405130 A CN104405130 A CN 104405130A CN 201410777894 A CN201410777894 A CN 201410777894A CN 104405130 A CN104405130 A CN 104405130A
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- wire tube
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Abstract
The invention discloses a method for preventing a masonry rear embedded wire tube position from cracking. The method is characterized by comprising the following steps of wire tube arrangement construction, wire slot closing construction, a wall body plastering construction, wire tube position pasting glass fiber cloth construction, wherein the process of the wire tube position pasting glass fiber cloth construction is as follows: the plastering mortar surfaces on two sides of a wire tube position are grinded, a pasting range is determined according to a wire tube marking line, a primer is coated within the pasting range, glass fiber cloth is pasted, a scraper plate is utilized to properly exert pressure so as to enable a cloth tape to be fully cleaned, then face glue is coated, and roughening or protection treatment is conducted on the surface of the glass fiber cloth after the glue is dried or cured. The method has the advantages that based on a traditional construction method, the cracking problem produced due to poor closing mortar bonding and stress concentration by means of the traditional method can be effectively controlled by pasting the glass fiber cloth tape on the outside of a wire tube; the method is simple and convenient to construct, low in cost, very ideal in wire tube position crack control effect and worthy of popularization and application.
Description
Technical field
The present invention relates to a kind of method of crackle preventing, be specifically related to a kind of method preventing crack, Sunken wire tube position after masonry, belong to technical field of buildings.
Background technology
In brickwork, wall spool buries method after laying and usually adopting, namely on the body of wall laid according to design or resident family's requirement, adopt electric tools to be aided with manual cutting, carve the U-type groove of certain depth, width in body of wall side, then lay spool and adopt the materials such as mortar to carry out Seal treatment to it.
Through investigation, traditionally cable laying operation still has generation crack in various degree, part engineering wall spool position, if vertical spool is close in the middle part of body of wall, then wall thickness is run through in most of crack.
At present, after common brickwork, Sunken wire tube position prevention and cure of crack method has three kinds:
1, traditional cutting directly closes method: the method means by design or resident family's requirement, first the line marker of dark pipe laying on metope, and cut into U-shaped groove along its circuit, place spool afterwards, and adopt the sealing groove materials such as cement mortar to carry out layering filleting Seal treatment.The method application is very extensive.
2, linked network method is closed in traditional cutting: the strengthening measure basis that the method ties up to the 1st kind of method being taked plug-in gauze wire cloth, i.e. cutting on body of wall, place spool and adopt mortar to after wire casing Seal treatment, the more plug-in gauze wire cloth in this position is plastered process.The method compensate for the deficiency of the 1st kind of method to a certain extent.
3, cutting grouting: the party's genealogy of law adopts contraction-free grouting concrete (or self-compacting concrete), is poured into by wire casing closely knit by the technique such as formwork, grouting.Due to the method complicated construction technique, current practical application is minimum.
Through investigation, after above-mentioned common brickwork still there are following problems in Sunken wire tube position prevention and cure of crack method:
1, wire casing position interior construction defect fails thoroughly to solve
Owing to having laid spool (being sometimes no less than) in body of wall wire casing, generally when adopting ordinary mortar to carry out sealing groove, receive the obstruction of pipe (position, diameter).Pipe head-on can be tamped in layering, but the pipe back side is difficult to filling.If maintenance is bad, close mortar because of dehydration too fast, easily produce ghost or exist in conjunction with bad phenomenon with base material.
In fact, no matter take which kind of measure, a constuction joint is always there is between sealing groove material and brickwork in wire casing, namely conventional method is adopted inherently to be difficult to solve this position in conjunction with bad problem, and this position also often because come to nothing become all the time body of wall easily produce stress concentrate position, namely not only easily cause this position to close mortar shrinkage crack, also therefore easily produce stress simultaneously and concentrate thus cause body of wall crosscutting concern.
For crack, spool position, be generally at most with vertical more regular crack, and major part runs through wall thickness, also can find spool position horizontal short keyways or irregular cracks (but their belong to closed mortar shrinkage crack) more once in a while.
2, outside is not established and is strengthened guipure or strengthen guipure poor effect
Owing to adopting conventional method construction, inherently thoroughly do not solve bi-material in conjunction with bad problem, the material shrinkage crack at wire casing position or concentrate produced deformation crack will be inevitable by stress.
According to " concrete structure and rear block infilled wall connecting portion prevention and cure of crack " result of study: adopt ferro-cement surface layer, for constraint mortar self shrinkage crack, there is good result.But facts have proved, Sunken wire tube position wall body slit after controlling with it, with the same with agent structure connecting portion crack for controlling rear block infilled wall, effect is not very good yet.Based on this, for spool position, need a kind of external reinforcing screen cloth of effective, simple economy too, to strengthen process further to this position.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of economy, the simple and method preventing crack, Sunken wire tube position after masonry can carrying out effectively closing to wire casing.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Prevent the method in crack, Sunken wire tube position after masonry, it is characterized in that, comprise the following steps:
(1), spool lays construction;
(2), wire casing closure construction and wall plastering construction;
(3) glass fabric construction, is pasted outside spool position:
(1) polish: the plastered mortar surface of polishing both sides, spool position;
(2) snap the line: determine stickup scope by spool mark line;
(3) gluing: brushing primer within the scope of stickup;
(4) paste: sticking glass fabric, and suitably pressurize with scraper plate and make strap fully clear and rich;
(5) surfacing: after colloid drying or solidification, roughening or protective treatment are carried out to the surface of glass fabric.
The aforesaid method preventing crack, Sunken wire tube position after masonry, it is characterized in that, in step (), the process that spool lays construction is:
(1) graticule road: mark spool route on metope;
(2) groove groove: carve U-shaped wire casing according to circuit and dirt slag is cleaned out;
(3) Sunken wire tube: by spool fix in position;
(4) seal nipple: each joint of spool is sealed.
The aforesaid method preventing crack, Sunken wire tube position after masonry, is characterized in that, in step (two), the process of wire casing closure construction and wall plastering construction is:
(1) interface processing: watering wet front, and brushing interface treating agent, what foregoing interface inorganic agent adopted is cement mortar glue, and cement mortar glue is made up of 901 building glues, cement and sand, and extemporaneous preparation, the weight ratio of each component is:
901 building glues: cement: sand=1:1.5:1;
(2) wire casing is closed: with the cement mortar filling spool back side, then layering smears setting-out cement mortar with closed wire casing;
(3) metope process: interface processing is carried out to both sides, spool position, and mark spool position on metope;
(4) wall plastering: to the wall plastering at spool position.
The aforesaid method preventing crack, Sunken wire tube position after masonry, is characterized in that, the match ratio closing the cement mortar that wire casing uses is 1:3.
The aforesaid method preventing crack, Sunken wire tube position after masonry, it is characterized in that, in step (three), the primer used is 901 building glues or epoxy resin.
The aforesaid method preventing crack, Sunken wire tube position after masonry, it is characterized in that, in step (three), the glass fabric used is E type glass fabric or S type high strength glass fiber sheet.
The aforesaid method preventing crack, Sunken wire tube position after masonry, it is characterized in that, foregoing glass fibers cloth is plain weave or twill.
The aforesaid method preventing crack, Sunken wire tube position after masonry, it is characterized in that, the thickness of foregoing glass fibers cloth is 0.10mm.
The aforesaid method preventing crack, Sunken wire tube position after masonry, is characterized in that, in step (three), also comprise the step of painting face glue:
Before processing after sticking glass fabric, to the surface of glass fabric, be coated with last layer face glue on the surface of glass fabric.
Usefulness of the present invention is:
1, on the basis of traditional cutting closure construction method, by at spool paste outside fiberglass cloth tape, effectively control the crack problem concentrating generation because closing mortar in conjunction with the shrinkage crack of bad generation and stress, this is because: glass fabric tensile strength is much larger than closed mortar and masonry, and flexible strain very little (close to mortar or masonry), therefore glass cloth tape is pasted outside masonry spool position, be equivalent to the tensile strength that improve masonry scored position, constrain the stretcher strain of this part material;
2, method easy construction of the present invention, cost is lower, very good to spool position Crack Control effect, is worthy of popularization.
Accompanying drawing explanation
Fig. 1 is the main flow figure preventing the method in crack, Sunken wire tube position after masonry of the present invention;
Fig. 2 is Sunken wire tube position snap the line and stickup schematic diagram after masonry.
The implication of Reference numeral in figure: 1-spool part mark line, the left control line of 2-, the right control line of 3-, 4-strap pastes scope, 5-brickwork.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
With reference to Fig. 1, of the present invention prevent masonry after the method in crack, Sunken wire tube position mainly comprise three large steps: spool lays that construction, wire casing closure construction and wall plastering are constructed, paste glass fabric outside spool position constructs.Introduce each step in detail respectively below.
One, spool lays construction
1, graticule road
According to design drawing, specification and owner's requirement, adopt chi bar or marking pen on metope, mark spool route.
2, groove groove
Carve U-shaped wire casing according to circuit, after holding wire casing successfully, the dirt slag of wire casing inside is cleaned out.
The width of wire casing and the degree of depth: 1. single cell: the width of wire casing and the degree of depth are pipe diameter+at least 20mm; 2. double joint pipe: the degree of depth=pipe diameter+at least 20mm of wire casing, the width=pipe diameter+at least 30mm of wire casing.
3, Sunken wire tube
Adopt pipe clamp etc. by the line box fix in position at spool and spool two ends.
4, seal nipple
Entering spool to prevent foreign material, guaranteeing that threading is unimpeded, adopt conventional cement mortar to seal each joint of spool in advance, and then carry out next procedure.
Two, wire casing closure construction and wall plastering construction
1, interface processing
After spool lays end, watering wet front, if wire casing dry tack free, then must water water-wet more than 2 days.Afterwards to wire casing surface, the spool back side, head-on brushing one deck interface treating agent, thickness is not more than 3mm.
What interface treating agent adopted is cement mortar glue, and this cement mortar glue is made up of 901 building glues, cement and sand, and extemporaneous preparation, the weight ratio of each component is:
901 building glues: cement: sand=1:1.5:1.
2, wire casing is closed
With the cement mortar filling spool back side, make it to clog closely knit with bottom land.Then adopt that grey cutter heads on to spool, groove carries out layering and plaster and scrape process, until finally flush with body of wall.
The match ratio closing the cement mortar that wire casing uses is 1:3.
3, metope process
On the metope of both sides, spool position 300mm width range, brushing one deck interface treating agent carries out interface processing, and on metope, mark spool position.
4, wall plastering
To the wall plastering at spool position.Generally lower than M5.0, and must not must not there is hollowing phenomenon in motar intensity, tackle this position if desired and carry out suitable maintenance.
Three, glass fabric construction is pasted outside spool position
1, polish
The plastered mortar surface of polishing both sides, spool position, i.e. line centered by spool position, is no less than 300mm by the width that every side matrix surface is polished.General employing electric tools or manual emery wheel are polished, and ensure the basic flat smooth in surface.Afterwards ash is floated on surface to clean out.
2, snap the line
For guaranteeing the effective drawknot of cloth material, both sides, spool position matrix strap lap width should not be less than 200mm.
Ink fountain is adopted to eject spool part mark line 1, snap the line is carried out for benchmark to both sides translation 200mm with spool part mark line 1, these two lines are the wide strap that is of the 400mm between left control line 2 and right control line 3, two line pasting cloth bag and paste scope 4, and concrete snap the line is shown in schematic diagram 2.
3, gluing
Brushing primer within the scope of stickup.Thickness does not trickle with glue and is advisable, and brushing scope comparable stickup scope is bigger.
Under general occasion, 901 building glues selected by primer, and not only construction cost drops into little, and influenced by ambient temperature less, and construction technology aspect is simple, easy.
If when having higher requirements to service life or quality, so primer can select epoxy resin, as commercially available carbon cloth matching gel.
4, paste
Sticking glass fabric (every leaf length is no more than 400mm no more than 1.0m, width) on the metope at spool position, and suitably pressurize with scraper plate and repeatedly scrape, to make strap fully clear and rich by primer.Must not gap be left between strap in taping process, should take completely to glue mode.
It is different that alkali metal oxide content pressed by glass fabric, can be divided into alkali-free cloth (i.e. E type glass fabric), low alkali or neutral-alkaline cloth (i.e. C type glass fabric) and high-alkali cloth (i.e. A type glass fabric), its performance difference is very large.In reinforcement and strengthening maintenance, preferably adopt alkali-free glass fiber cloth, i.e. E type glass fabric, its alkali content <1%, there is higher mechanical strength and good electrical insulating property, water resistance, resistance to ag(e)ing.
S type high strength glass fiber sheet is the further lifting of E type glass fabric performance, and its alternative carbon cloth is applied in structural strengthening reinforcement and maintenance.
More preferably, glass fabric is plain weave or twill.
More preferably, the thickness of glass fabric is 0.10mm.
Glass fabric should type selecting number be EW100 or SW100, on sale on market.
5, face glue is coated with
If primer does not fully infiltrate strap, so can be coated with last layer face glue on the surface of glass fabric and remedy, thus guarantee that strap is fully infiltrated by colloid, when being coated with face glue, should ensure that strap is smooth.Face glue and primer belong to same glue, and just call is different: primer is coated in basic unit's (bottom), in the below of strap, therefore claim primer, and face glue are coated on belt surface, therefore claim face glue.
6, surfacing
After treating the dry or solidification of colloid (general normal temperature 24h, period can not disturbance), roughening or protective treatment are carried out to the surface of glass fabric.Generally protective treatment can adopt cement mortar glue (901 building glues: cement: medium sand=1:1.5:1, weight ratio) to carry out brushing process.Surfacing area can be greater than more than stickup scope 30mm.
So far, outside patch method construction end is closed in cutting.
Because glass fabric tensile strength is much larger than closed mortar and masonry, and flexible strain very little (close to mortar or masonry), therefore glass cloth tape is pasted outside masonry spool position, be equivalent to the tensile strength that improve masonry scored position, constrain the stretcher strain of this part material.
Outside patch method new construction pilot situation is closed in cutting:
In July, 2011 to December, successively in Xi'an, little Tall Shear Wall Structures residential building, four layers of brick mix structure office building brick wall body carried out pilot respectively.Above two engineerings have all been completed and have been prepared finishing, and wherein two family spools need secretly to bury to lay.After in pilot, Sunken wire tube position sealing groove material is polymer mortar, and paste outside material is glass fabric and epoxy resin.Close the process of outer subsides glass fabric by cutting, over 3 years, follow-up investigations do not find crack, spool position.
As can be seen here, method of the present invention is the method in crack, a kind of effectively preventing spool position.
In addition, construction method of the present invention also have construction technology simple, facilitate feasible, economic dispatch advantage, be worthy of popularization.
It should be noted that, above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (9)
1. prevent the method in crack, Sunken wire tube position after masonry, it is characterized in that, comprise the following steps:
(1), spool lays construction;
(2), wire casing closure construction and wall plastering construction;
(3) glass fabric construction, is pasted outside spool position:
(1) polish: the plastered mortar surface of polishing both sides, spool position;
(2) snap the line: determine stickup scope by spool mark line;
(3) gluing: brushing primer within the scope of stickup;
(4) paste: sticking glass fabric, and suitably pressurize with scraper plate and make strap fully clear and rich;
(5) surfacing: after colloid drying or solidification, roughening or protective treatment are carried out to the surface of glass fabric.
2. the method preventing crack, Sunken wire tube position after masonry according to claim 1, it is characterized in that, in step (), the process that spool lays construction is:
(1) graticule road: mark spool route on metope;
(2) groove groove: carve U-shaped wire casing according to circuit and dirt slag is cleaned out;
(3) Sunken wire tube: by spool fix in position;
(4) seal nipple: each joint of spool is sealed.
3. the method preventing crack, Sunken wire tube position after masonry according to claim 1, is characterized in that, in step (two), the process of wire casing closure construction and wall plastering construction is:
(1) interface processing: watering wet front, and brushing interface treating agent, what described interface treating agent adopted is cement mortar glue, and cement mortar glue is made up of 901 building glues, cement and sand, and extemporaneous preparation, the weight ratio of each component is:
901 building glues: cement: sand=1:1.5:1;
(2) wire casing is closed: with the cement mortar filling spool back side, then layering smears setting-out cement mortar with closed wire casing;
(3) metope process: interface processing is carried out to both sides, spool position, and mark spool position on metope;
(4) wall plastering: to the wall plastering at spool position.
4. the method preventing crack, Sunken wire tube position after masonry according to claim 3, is characterized in that, the match ratio closing the cement mortar that wire casing uses is 1:3.
5. the method preventing crack, Sunken wire tube position after masonry according to claim 1, it is characterized in that, in step (three), the primer used is 901 building glues or epoxy resin.
6. the method preventing crack, Sunken wire tube position after masonry according to claim 1, it is characterized in that, in step (three), the glass fabric used is E type glass fabric or S type high strength glass fiber sheet.
7. the method preventing crack, Sunken wire tube position after masonry according to claim 6, it is characterized in that, described glass fabric is plain weave or twill.
8. the method preventing crack, Sunken wire tube position after masonry according to claim 7, it is characterized in that, the thickness of described glass fabric is 0.10mm.
9. the method preventing crack, Sunken wire tube position after masonry according to claim 1, is characterized in that, in step (three), also comprise the step of painting face glue:
Before processing after sticking glass fabric, to the surface of glass fabric, be coated with last layer face glue on the surface of glass fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777894.5A CN104405130B (en) | 2014-12-15 | 2014-12-15 | Prevent the method in crack, Sunken wire tube position after masonry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777894.5A CN104405130B (en) | 2014-12-15 | 2014-12-15 | Prevent the method in crack, Sunken wire tube position after masonry |
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| Publication Number | Publication Date |
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| CN104405130A true CN104405130A (en) | 2015-03-11 |
| CN104405130B CN104405130B (en) | 2016-04-06 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1399510A (en) * | 1972-10-11 | 1975-07-02 | Balfour Beatty Co Ltd | Artificial and natural structures |
| CN102071771A (en) * | 2010-12-15 | 2011-05-25 | 成都市第四建筑工程公司 | Building waste residue sintering-free embedded pipeline groove brick and using method thereof |
| CN102561691A (en) * | 2012-03-15 | 2012-07-11 | 云南惠丰工程建设有限公司 | Method for eliminating cracking of joint between fair-faced concrete shear wall and masonry |
| CN104141353A (en) * | 2013-11-05 | 2014-11-12 | 中国建筑第四工程局有限公司 | Construction method and structure of non-load-bearing thin wall |
-
2014
- 2014-12-15 CN CN201410777894.5A patent/CN104405130B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1399510A (en) * | 1972-10-11 | 1975-07-02 | Balfour Beatty Co Ltd | Artificial and natural structures |
| CN102071771A (en) * | 2010-12-15 | 2011-05-25 | 成都市第四建筑工程公司 | Building waste residue sintering-free embedded pipeline groove brick and using method thereof |
| CN102561691A (en) * | 2012-03-15 | 2012-07-11 | 云南惠丰工程建设有限公司 | Method for eliminating cracking of joint between fair-faced concrete shear wall and masonry |
| CN104141353A (en) * | 2013-11-05 | 2014-11-12 | 中国建筑第四工程局有限公司 | Construction method and structure of non-load-bearing thin wall |
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