CN104532968B - Prevent concrete structure from building the method for filling wall connecting portion crack with rear - Google Patents
Prevent concrete structure from building the method for filling wall connecting portion crack with rear Download PDFInfo
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- CN104532968B CN104532968B CN201410777892.6A CN201410777892A CN104532968B CN 104532968 B CN104532968 B CN 104532968B CN 201410777892 A CN201410777892 A CN 201410777892A CN 104532968 B CN104532968 B CN 104532968B
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Abstract
Prevent concrete structure from building the method for filling wall connecting portion crack with rear the invention discloses a kind of, it is characterised in that to comprise the following steps：Wall building construction-filling wall plastering construction-connecting portion outer patch cracking resistance cloth belt construction is filled, wherein, the process of connecting portion outer patch cracking resistance cloth belt construction is：Matrix surface is polished and cleared up, in matrix surface snap the line to determine the stickup scope of strap, the brushing primer in the range of stickup, paste cracking resistance strap and suitably being pressurizeed with scraper plate makes strap fully clear and rich, after colloid is dry or solidification after the surface of cracking resistance strap is roughened or protective treatment.The present invention is advantageous in that：By improving current traditional building construction technique, ensure that fill wall builds real jam-packed with original concrete structure, while cover using the further cracking resistance of effective external reinforcing strap or effectively, two defence line collective effects, whole technique is simple, has preferable effect of prestressed.
Description
Technical field
The present invention relates to a kind of method for preventing crack, and in particular to one kind prevents concrete structure from filling wall connecting portion with rear build
The method in position crack, belongs to technical field of buildings.
Background technology
General framework structure, shear wall structure and frame-shear-wall structure are referred to as reinforced concrete structure.In reinforced concrete structure
In, some shear walls build hole (such as door and window hole) and antidetonation hole, and filling wall is built after generally use and is partially or fully built
Build, and some frameworks or frame-shear structure also build filling wall after generally use to separate space, to meet owner's requirement.
After revision《Masonry design specification》, the rear connected mode for building filling wall and concrete structure can be divided into following two
Kind：
The first is to disengage connection.A fixed gap is left when building a wall between concrete structure, then using reinforcing bar, ironware and pre-
The measures such as embedded part, elastic filling material or closed material link together two kinds of base materials.
Second is that non-disengage connects (conventional method connection).That is traditionally masonry panel, and wall is set on request
Body tension rib；To being interspaced in advance at the top of wall, tiltedly built after under-filled wall shrinks stabilization, both is close-coupled at one
Rise.
For both the above connected mode, due to consideration that construction factor, structural seismic performance, normal usage and comfortable
Property etc. require, general seldom using disengaging connection, current most engineerings, which employ, non-to be disengaged connection (i.e. tradition connects
Connect).
Shown according to investigation result and substantial amounts of data, filling wall is built by laying bricks or stones by tradition connection at present, more than 90% after 1 year
Engineering produce different degrees of crack in connecting portion.Two kinds are generally can be divided into for such crack：One kind is horizontal fracture
(position at the top of beam bottom or shearing wall hole), another kind is Vertical Cracks (frame column or shear wall sideway stance).
Identified through safety of structure and anti-seismic performance comprehensive analysis, such connecting portion crack, do not interfere with whole house
Structure safety and anti-seismic performance, but can be to normal usage (such as percolating water) and the applicability generation one (such as attractive in appearance) in house
It is fixing to ring.
For such connecting portion crack, also always people not yet solve but ignored applied very well for a long time
Work problem, and a Construction Quality common fault.It will be further appreciated that it the commercial house buy and sell and use during can be because
This causes unnecessary construction quality dispute or brings unnecessary trouble.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide a kind of both simple, economy, and can effectively solves
Connecting portion combines the problem of bad, while have a preferable effect of prestressed prevents concrete structure from filling wall connecting portion with rear build and split
The method of seam.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：
It is a kind of to prevent concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that to comprise the following steps：
(1) wall building construction, is filled；
(2) wall plastering construction, is filled；
(3), connecting portion outer patch cracking resistance cloth belt construction：
(1), polish：Matrix surface is polished and cleared up；
(2), snap the line：In matrix surface snap the line to determine the stickup scope of strap；
(3) primer, is applied：The brushing primer in the range of stickup；
(4), paste：Cracking resistance strap is pasted, and suitably being pressurizeed with scraper plate makes strap fully clear and rich；
(5), it is surface-treated：After colloid is dry or solidification after, the surface of cracking resistance strap is roughened or protective treatment.
Foregoing prevents concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that in step (1)
In, the process of filling wall building construction is：
(1) interface processing：Before building by laying bricks or stones, brushing processing, cement bonded sand are carried out to connecting portion concrete interface with cement mortar glue
Starch thickness≤3.0mm of glue brushing；
(2) plaster in advance：Before building by laying bricks or stones, carry out cement mortar in advance to connecting portion Concrete In Structures face and plaster processing, cement and sand
The weight ratio of son is 1:2, the thickness of cement mortar is 10mm-15mm；
(3) build by laying bricks or stones：When the masonry to vertical connecting portion is built by laying bricks or stones, brick end is first plastered, and suitably pressurization and Concrete In Structures face
Build real jam-packed；When tiltedly being built to horizontal connection position wall space, skew brick upper end is plastered, and make skew brick and beam bottom or
Build real jam-packed in hole top.
Foregoing prevents concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that in step (1)
In, the composition of cement mortar glue used and weight proportion are during interface processing：
901 building glues：Cement：Sand=1：1.5：1.
Foregoing prevents concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that in step (2)
In, before being plastered to filling wall, to matrix surface brushing interface treating agent, the brushing scope of foregoing interface inorganic agent is：Matrix
300mm scope is no less than per side width, and ensures the scope motar intensity >=M5.0.
Foregoing prevents concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that in step (3)
In, used primer is epoxide-resin glue, and corresponding cracking resistance strap is：Carbon cloth, glass fabric, basalt cloth or virtue
Synthetic fibre cloth.
Foregoing prevents concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that in step (3)
In, used primer is 901 building glues, and corresponding cracking resistance strap is：E types glass fabric or S types high-strength glass are fine
Wei Bu, the thickness of cracking resistance strap is 0.1mm.
The present invention is advantageous in that：
1st, based on simple conventional method (non-disengagement connection method), and combination current architecture configuration reinforcement and strengthening,
Crack maintenance technique and new material application achievements, by improving current traditional building construction technique, it is ensured that filling wall
Real jam-packed is built with original concrete structure, i.e., solves connecting portion from inside and combines bad problem, first as control critical eigenvalue is anti-
Line；
2nd, on the basis of the first line of defence, using the effective further cracking resistance of external reinforcing strap, as control
Connecting portion crack second defence line；
3rd, whole technique was both simple, and it is bad that and can solves the problems, such as that connecting portion combines, while there is preferable cracking resistance to imitate
Fruit.
Brief description of the drawings
Fig. 1 is the main construction techniques stream for preventing concrete structure and the rear method for building filling wall connecting portion crack of the present invention
Cheng Tu；
Fig. 2 is that filling wall metope joins position (vertical) both sides matrix when being flushed with main body structure concrete face and plastered schematic diagram；
Fig. 3 is that filling wall metope joins position (level) both sides matrix when being flushed with main body structure concrete face and plastered schematic diagram；
Fig. 4 is filling wall metope and the uneven schematic diagram of usually being plastered to filling wall (level) in main body structure concrete face；
Fig. 5 is filling wall metope and the uneven schematic diagram of usually being plastered to filling wall (vertical) in main body structure concrete face；
Fig. 6 is that Concrete In Structures vertically join position snap the line with filling wall, paste schematic diagram.
The implication of reference in figure：1- filling walls, 2- Concrete In Structures, 3- motars, 4- vertically join position, and 5- is horizontal
Join position, 6- connecting portions, the left control lines of 7-, the right control lines of 8-, 9- straps stickup scope.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
Reference picture 1, of the invention prevents that concrete structure and the method in rear block filling wall connecting portion crack are mainly big including three
Step：Fill wall building construction, filling wall plastering construction, connecting portion outer patch cracking resistance cloth belt construction.It is discussed in detail separately below
Each step.
First, wall building construction is filled
1st, interface processing
Before building by laying bricks or stones, brushing processing is carried out to connecting portion concrete interface with cement mortar glue, cement mortar glue brushing
Thickness≤3.0mm.
The composition and weight proportion of cement mortar glue be：
901 building glues：Cement：Sand=1：1.5：1.
Empirical tests, the cement mortar glue of the composition have higher adhesion strength.
2nd, plaster in advance
Before building by laying bricks or stones, carry out cement mortar in advance to connecting portion Concrete In Structures face and plaster the weight ratio of processing, cement and sand
For 1:2, the thickness of cement mortar is 10mm-15mm.
3rd, build by laying bricks or stones
When the masonry to vertical connecting portion is built by laying bricks or stones, brick end is first plastered, and suitably pressurization builds real jam-packed with Concrete In Structures face.
When tiltedly being built to horizontal connection position wall space, the filling wall such as palpus puzzles more than 14d.Skew brick preferably uses
Solid brick, when tiltedly building, skew brick upper end is plastered, and skew brick is built real jam-packed with beam bottom or hole top.As skew brick once fails
It is compacted, benefit ash can be carried out to skew brick upper end gap from both sides are secondary, until the filling of space position is closely knit.
2nd, wall plastering construction is filled
1st, pre-process
Before being plastered to filling wall, to matrix surface brushing interface treating agent, the brushing scope of interface treating agent is：Matrix
300mm scope is no less than per side width, and ensures the scope motar intensity >=M5.0.
According to relevant information, motar is just drawing adhesion strength to be typically less than 0.3MPa, and hollowing must not occurs and show
As.In addition, necessary maintenance should be carried out to the scope after plastering.
2nd, plaster
Whether flushed according to filling wall with Concrete In Structures face, connecting portion can be divided into two kinds of situations：One kind is filling wall hair
Face flushes with Concrete In Structures face；Another kind is that filling wall hair side is not flush that (the former is the small 20- of thickness ratio the latter with Concrete In Structures face
30mm).For connecting portion outer patch cracking resistance strap can be realized, it is necessary to assure connecting portion both sides matrix surface flushes.
Based on this, when filling wall to build hair side by laying bricks or stones is flushed with Concrete In Structures face, two kinds of matrixes must enter as shown in Fig. 2, Fig. 3
Capable processing of plastering；It is uneven usually with Concrete In Structures face to build hair side by laying bricks or stones when filling wall, and only filling wall hair side need to be carried out by Fig. 4, Fig. 5
Plaster, be allowed to flush with Concrete In Structures side.
3rd, connecting portion outer patch cracking resistance cloth belt construction
1st, polish
Connecting portion surface should be dried before polishing, concrete and other matrix surfaces polishing width respectively no less than 200mm and
300mm。
Typically polished using electric tool or manual emery wheel, it is ensured that matrix surface is smooth.
, should be in advance using materials such as epoxy resin mortars if handing-over position matrix surface has the open defects such as groove, gap
Repaired, and re-start and polish flat after material solidification to be repaired.The floating ash of matrix surface is cleaned out afterwards.
2nd, snap the line
According to relevant information, for the connecting portions of different filling wall block materials, to ensure the effective drawknot of cracking resistance strap,
Connecting portion preferably presses the value of table 1 per side strap lap width.
The connecting portion strap lap width of 1 different Filled-wall materials of table
, should be according to building structure construction figure ejection post side, shearing wall hole side, Dong Ding if connecting portion matrix has smeared ash
And beam feather edge line, the mark line as connecting portion.
The connecting portion strap lap width and mark line provided according to table 1, snap the line is carried out using ink fountain, to determine strap
Stickup scope.Connecting portion both sides snap the line can be shown in schematic diagram Fig. 6 as the control line for pasting strap, specific snap the line.
3rd, primer is applied
The brushing primer in the range of stickup.
Required based on economic input or service life, two kinds of primers are proposed in the solution of the present invention：901 building glues and
Epoxide-resin glue.
901 building glue combination properties are good, price is relatively low, are a kind of economic and environment-friendly primers.It is gluing using 901 buildings
It is more simple, easier than using epoxide-resin glue to paste the cracking resistance straps such as E types glass fabric, S type high strength glass fiber sheets, and by
Ambient temperature effect is smaller.Service life is had no special requirements or can select 901 building adhesives when fund aspect input is smaller
Water is as primer.
After E types glass fabric or S types high strength glass fiber sheet, which are pasted, to be terminated, one layer of water such as is brushed to treatment site
Mud glue, it can not only increase later stage rendering Bonding quality of the interface between grain and liner, can also effectively protect and extend its service life.
E types glass fabric, the equal preferred thickness of S type high strength glass fiber sheets are relatively thin, such as thickness is 0.1mm.
The cloth material such as epoxide-resin glue and glass fabric, carbon cloth, basalt cloth, aramid fabric has good cohesive force
Learn performance.Suitable for requiring (30 years) or special important events to service life.
For epoxide-resin glue, carbon cloth matching gel common in the market can be used, by specification is by first component
(glue), second component (curing agent) prepare in proportion, and uniform using pony mixer mix, and each spice should not excessively (most
Big 10Kg), by the way of preferably being used while mixing, solidify to prevent colloid.During gluing, its thickness is not trickled with glue and is advisable, gluing
Scope can exceed more than control line 10mm.
4th, paste
After primer is painted with, by the cracking resistance strap cut out in advance (being no more than 400mm no more than 1.0m, width per leaf length)
It is pasted onto on matrix surface, and scrapes repeatedly, makes the fully clear and rich cracking resistance strap of colloid
Strap must not stay gap in taping process, preferably take completely viscous mode.
The basic principle that strap is selected：
Generally, for structural strengthening reinforcement, it is desirable to tensile strength, modulus of elasticity and toughness (elongation) phase of strap
To high, but for the cracking resistance for filling wall and concrete structural connection position, due to tension caused by the position, it is not belonging to
Structure stress, belong to caused by contraction distortion, therefore the tension very little (being much smaller than structure stress) that the position is born.Based on this,
Resist the strap needed for outside tension for connecting portion, its tensile strength and toughness need not excessive demand, that is, have certain
Toughness and intensity can be to constrain the crack of connecting portion, so as to realize the seamless perfect effect of outward appearance.
Through investigation, connecting portion is used for using brown paper, really non-woven fabrics, cloth and steel wire, its effect of prestressed is not
It is very good, and acrylic fibers cloth and dacron cloth physical parameter are substantially close to therefore being also unsuitable for connecting portion cracking resistance.
According to conventional engineering Pilot Analysis result, no matter whether connecting portion faying face quality is good, using carbon fiber
Cloth and epoxide-resin glue carry out repairing treatment, position (carbon cloth and its outside finish coat after 10 years to connecting portion crack
(putty layer, dope layer etc.)) cracking phenomena does not occur, serve from good control critical eigenvalue effect.
The parameter such as glass fabric, basalt cloth and aramid fabric, their tensile strength, modulus of elasticity is and carbon cloth
Very close to (close to the air shrinkage value 1.2-3.0% of mortar) between 1.8-2.8%, their toughness is relative to wash elongation
Synthetic fibre is much smaller, i.e., they have the performance same with carbon cloth.
Steel wire, dacron cloth (terylene) and acrylic fiber cloth, though their tensile strength meet demand of anti-crack, they
Elongation is relatively large (between 18-25%), is unsuitable for connecting portion according to the screen cloth that this kind of toughness of finding is too big
Cracking resistance strap.
Analysis and comparing result based on more than, during using epoxide-resin glue as primer, preferably carbon cloth, glass fibre
The cracking resistance strap of cloth, basalt cloth and aramid fabric as connecting portion.Glass fabric is more suitable for using with its higher cost performance
Make cracking resistance strap outside connecting portion.
During using 901 building glues as primer, preferably E types glass fabric or S types high strength glass fiber sheet are as company
The cracking resistance strap of socket part position.
Glass fabric is different by alkali metal oxide content, can be divided into alkali-free cloth (i.e. E types glass fabric), low alkali or
Neutral-alkaline cloth (i.e. c-type glass fabric) and high-alkali cloth (i.e. A types glass fabric), its performance difference is very big.Tieed up in reinforcement and strengthening
In repairing, it is preferred to use alkali-free glass fiber cloth, i.e. E types glass fabric, its alkali content<1%, have higher mechanical strength and
Good electrical insulating property, water resistance, resistance to ag(e)ing.
S type high strength glass fiber sheets are the further liftings of E type glass fabric performances, and its alternative carbon cloth is answered
For in structural strengthening reinforcement and maintenance.
5th, face glue is applied
If primer does not infiltrate strap fully, then can be coated on the surface of cracking resistance strap an aspect glue (face glue and
Primer belongs to same adhesive) remedied, so that it is guaranteed that strap is fully infiltrated by colloid, it should ensure that strap is smooth when applying face glue.
6th, it is surface-treated
After treating colloid drying or solidification (general normal temperature 24h, during which can not disturb), the surface of glass fabric is carried out slightly
Roughening or protective treatment.Generally protective treatment can use cement mortar glue (i.e. weight proportion：901 building glues：Water
Mud：Middle sand=1：1.5：1) brushing processing is carried out.Stickup more than scope 30mm can be more than by being surface-treated area.
So far, construction terminates.
It is the internal factor for causing the position crack to be combined bad between two kinds of base materials of connecting portion, and practice of construction is difficult to do
To being well combined, i.e., because construction factor crack is with regard to inevitable at internal combustion face.Integrated through safety of structure and anti-seismic performance
Analyze and identify, such connecting portion crack does not interfere with building structure safety and anti-seismic performance, but can be to the normal use in house
Property (such as percolating water), especially applicability (such as attractive in appearance) can produce certain influence.
Since crack is inevitable, structure safety is not influenceed but, therefore the starting point of the method for the present invention is i.e. from outside
Enter row constraint (need not be made great efforts from inside), realized using covering method from the seamless perfect effect of outward appearance.
Glass fabric, basalt cloth, aramid fabric and carbon cloth etc., they are different from brown paper, non-woven fabrics, really
Cloth, acrylic fibers cloth and steel wire, they can be from outside operative constraint with its higher intensity and modulus of elasticity, less toughness
Connecting portion crack.Because the parameters such as the materials such as glass fabric their tensile strength, modulus of elasticity are very close to elongation
It will not cause cloth between 1.8-2.8%, and close to the air shrinkage value 1.2-3.0% of mortar, the i.e. change of various factors
It band cracking, will not also cause strap and tack coat deformation inconsistent, be opened so as to avoid putty layer, dope layer etc. outside strap
Split, there is fabulous cracking-proof effect.
Applicable cases of the prevention and controls proposed by the present invention in Practical Project：
1st, in new construction pilot situation
In December, 2010 in January, 2011, respectively in the floor commercial and residential building of Xi'an bumper harvest road 24 (shearing structure) and Sanyuan County
19 layers of food industry garden residential building (shearing structure) has carried out pilot.
Two engineering shearing wall opening Filled-wall material is respectively Aerated Concrete and autoclaved lime-sand brick building block above, and hole top is tiltedly built
Using common brick, filling wall is built by laying bricks or stones using conventional method, is plastered afterwards, and wall and shear wall concrete table are filled after plastering
Face flushes.
This processing employs glass fabric and epoxide-resin glue and full viscous or compartment stickup has been carried out to handing-over position.
This two engineering pilots employ three kinds of cloth (glass fabric, basalt cloth and carbon cloth) and epoxy resin
Glue, the connecting portion of 16 metopes is pasted altogether.
Handing-over position groove is repaired using epoxy mortar before pasting, and polished, afterwards by this method
Connecting portion is pasted.
Crack is not found, is connected through follow-up investigations, the completely viscous rear finish coat (putty and dope layer) of connecting portion over nearly 3 years
Finish coat finds compartment crack after position compartment is pasted.
2nd, the applicable cases in existing building crack repairing
In July, 2010, this is used to the crack of the connecting portion of the safe and comfortable four six story frame structure residential buildings in Pingli County
The method of invention has carried out repairing treatment.
The engineering was built before and after 2008, and rear Filled-wall material of building is small concrete hollow block, and the skew brick of beam bottom is water
Mud solid brick or common brick, using conventional method brick-building art, in the plug-in steel wire of connecting portion during inner powder.
In ornament and come into operation less than 2 years, find framework and brickwork connecting portion crack.After through property
Using steel wire, the material such as cloth carries out repairing treatment really, and former connecting portion still produces cracking within less than 1 year.
Based on this, through consulting with developer, inventor is connected using 200g carbon cloths with epoxide-resin glue to wherein 5 families
Position crack is repaired and (amounts to about 40 square metres of carbon cloth bond area).
Through follow-up investigations since 3 years, do not find that connecting portion finish coat (metope batch putty swabbing) produces cracking again
Phenomenon.
As can be seen here, method of the invention is not only simple, economical, and and can effectively solves connecting portion and combines bad ask
Topic, while there is preferable effect of prestressed, it is not only suitable for filling wall connecting portion crack with project under construction concrete structure and rear build
In preventing and treating construction, and it is also suitable, has for existing building concrete structure and the rear maintenance process for building filling wall connecting portion crack
There is fabulous application value.
It should be noted that the invention is not limited in any way for above-described embodiment, it is all to use equivalent substitution or equivalent change
The technical scheme that the mode changed is obtained, all falls within protection scope of the present invention.
Claims (4)
1. prevent concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that to comprise the following steps：
(1) wall building construction, is filled：
(1) interface processing：Before building by laying bricks or stones, brushing processing, cement mortar glue are carried out to connecting portion concrete interface with cement mortar glue
The composition and weight proportion of liquid are 901 building glues：Cement：Sand=1:1.5:1, the thickness of cement mortar glue brushing≤
3.0mm；
(2) plaster in advance：Before building by laying bricks or stones, carry out cement mortar in advance to connecting portion Concrete In Structures face and plaster processing, cement and sand
Weight ratio is 1:2, the thickness of cement mortar is 10mm-15mm；
(3) build by laying bricks or stones：When the masonry to vertical connecting portion is built by laying bricks or stones, brick end is first plastered, and suitably pressurization is built in fact with Concrete In Structures face
Jam-packed；When tiltedly being built to horizontal connection position wall space, skew brick upper end is plastered, and skew brick is pushed up with beam bottom or hole
Build real jam-packed；
(2) wall plastering construction, is filled：
(1) before being plastered to filling wall, to matrix surface brushing interface treating agent, the brushing scope of the interface treating agent is：
Matrix is no less than 300mm scope per side width, and ensures the scope motar intensity >=M5.0；
(2) when filling wall is built hair side by laying bricks or stones and flushed with Concrete In Structures face, the surface of two kinds of matrixes carries out processing of plastering；Filling wall is built by laying bricks or stones
Hair side and Concrete In Structures face are uneven usually, and only filling wall hair side is plastered, is allowed to flush with Concrete In Structures side；
(3), connecting portion outer patch cracking resistance cloth belt construction：
(1), polish：Matrix surface is polished and cleared up；
(2), snap the line：In matrix surface snap the line to determine the stickup scope of strap；
(3) primer, is applied：The brushing primer in the range of stickup；
(4), paste：After primer is painted with, the cracking resistance strap cut out in advance is pasted onto on matrix surface, is no more than per leaf length
1.0m, width are no more than 400mm, and strap does not stay gap in taping process, take completely viscous mode, use scraper plate after stickup repeatedly
Appropriate pressurization makes strap fully clear and rich, and what the cracking resistance strap was selected is strap of the elongation between 1.8%-2.8%, bag
Include：Carbon cloth, glass fabric, basalt cloth, aramid fabric, E types glass fabric and S type high strength glass fiber sheets；
(5), it is surface-treated：After colloid drying or solidification, the surface of cracking resistance strap is brushed using cement mortar glue
Processing, the composition and weight proportion of the cement mortar glue are 901 building glues：Cement：Middle sand=1:1.5:1.
2. according to claim 1 prevent concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that
In step (3), used primer is epoxide-resin glue.
3. according to claim 1 prevent concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that
In step (3), used primer is 901 building glues.
4. according to claim 1 prevent concrete structure from building the method for filling wall connecting portion crack with rear, it is characterised in that
In step (3), the thickness of used E types glass fabric and S type high strength glass fiber sheet is 0.1mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777892.6A CN104532968B (en) | 2014-12-15 | 2014-12-15 | Prevent concrete structure from building the method for filling wall connecting portion crack with rear |
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|---|---|---|---|
| CN201410777892.6A CN104532968B (en) | 2014-12-15 | 2014-12-15 | Prevent concrete structure from building the method for filling wall connecting portion crack with rear |
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| CN104532968B true CN104532968B (en) | 2017-12-12 |
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| CN105297950A (en) * | 2015-09-20 | 2016-02-03 | 宁夏宏远建设工程有限公司 | Infilled wall and horizontal load-bearing structure gap wall surface crack-controlling construction method |
| CN111155664B (en) * | 2020-03-16 | 2021-06-08 | 中建二局第二建筑工程有限公司 | Crack control construction method for aerated concrete block filler wall |
| CN114197340A (en) * | 2021-12-18 | 2022-03-18 | 四川恒高新型建材有限公司 | Concrete surface repairing and protecting process |
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| JP5355526B2 (en) * | 2010-10-13 | 2013-11-27 | 中国電力株式会社 | Water stop plate |
| CN102477797B (en) * | 2010-11-24 | 2016-06-01 | 五冶集团上海有限公司 | A kind of construction method preventing infilled wall crack |
| CN102287053A (en) * | 2011-06-22 | 2011-12-21 | 中国二十二冶集团有限公司 | Construction method for resisting cracks at junctions of plastered filler wall and dry concrete wall |
| CN203334472U (en) * | 2013-06-30 | 2013-12-11 | 陕西建工集团总公司 | Processing structure of junction of filler wall and concrete wall |
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