CN101363269A - Construction method of anti-plastering putty for concrete structure wall - Google Patents

Construction method of anti-plastering putty for concrete structure wall Download PDF

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Publication number
CN101363269A
CN101363269A CNA2008100320729A CN200810032072A CN101363269A CN 101363269 A CN101363269 A CN 101363269A CN A2008100320729 A CNA2008100320729 A CN A2008100320729A CN 200810032072 A CN200810032072 A CN 200810032072A CN 101363269 A CN101363269 A CN 101363269A
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China
Prior art keywords
putty
construction
plastering
primary
time
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CNA2008100320729A
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Chinese (zh)
Inventor
丁明升
蒋琪
覃勇兵
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China Construction five Bureau Third Construction Co., Ltd.
China Construction Fifth Engineering Bureau Co Ltd
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China Construction Fifth Bureau Third Construction Co Ltd
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Priority to CNA2008100320729A priority Critical patent/CN101363269A/en
Publication of CN101363269A publication Critical patent/CN101363269A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a construction method of a wall putty of a plaster-free concrete structure. The construction method comprises the following steps: construction preparation, base course treatment, concave-convex line construction, a first full application of wall putty, flattening, a second full application of wall putty and flattening. The construction method has the advantages of less workload, short construction time, little resource consumption, no hollow drum and crack of the floated coat, no crack at the joint of the primary structure and the secondary structure.

Description

Construction method of anti-plastering putty for concrete structure wall
Technical field
The present invention relates to a kind of concrete structure wall putty job practices, particularly relate to a kind of construction method of anti-plastering putty for concrete structure wall.
Background technology
When implementing the construction of concrete structure wall putty, must be with primary structure (concrete main body structure, as follows), secondary structure (infilled wall enclosed structure, as follows) and the construction of plastering on inner walls relevant branch the work itemss such as (mainly being that infilled wall is plastered, as follows) and putty comprehensively carry out as an organic system.
The concrete structure body of wall is before putty construction, and traditional way will be carried out basic unit's processings of plastering, but traditional wet trade workload of plastering is big, and the engineering time continues to grow, and the resource consumption of each side is many; And deposit easily and to produce hollowing and cracking, especially primary structure and secondary structure junction at floated coat and cracking phenomena very easily occurs.
The reason that crackle produces mainly is:
1, the contraction of secondary structure filled wall consolidation process
1.1, the contraction between secondary structure filled wall and the primary structure beam slab
After infilled wall is built by laying bricks or stones and is finished, in the fixed process of masonry mortar, owing to vertically shrink the especially effect of gravity, the whole slowly sinking of infilled wall is stable until the fixed back wall of mortar, and cracking phenomena occurs this moment between primary structure beam slab and secondary structure infilled wall.Just do not carry out wall plastering if the infilled wall natural subsidence of secondary structure and contraction are also finished, so unavoidably this cracking destruction is passed to floated coat, cracking phenomena will appear in the floated coat at this position.
1.2, the contraction between secondary structure filled wall and the primary structure wall column
After infilled wall is built by laying bricks or stones and finished, in the fixed process of masonry mortar, also have the contraction of horizontal direction, cracking phenomena occurs this moment between primary structure wall column and secondary structure infilled wall.Just do not carry out wall plastering if the contraction of the infilled wall horizontal direction of secondary structure is also finished, so unavoidably this cracking destruction is passed to floated coat, cracking phenomena will appear in the floated coat at this position.
1.3, the influence of thermal stresses
Because ambient temperature changes and to cause that structure is expanded with heat and contract with cold and temperature deformation occurs, after decorations are finished, floated coat with restraining structure when the variations in temperature Free Transform and produce subsidiary stress or claim thermal stresses.Because concrete linear expansion coeffcient a=1.08 X 10/C, and the linear expansion coeffcient of building block is 0.5 X 10/C, so when variations in temperature, differ because primary structure and secondary structure are flexible, the thermal stresses that pins down mutually each other and produce makes primary structure and secondary structure junction cracking destruction, so also unavoidably this cracking destruction is passed to floated coat, cracking phenomena will appear in the floated coat at this position.
1.4, the cracking of floated coat
Cast aside when plastering because misoperation produces the common quality defect of floated coat cracking, also there is the similarly cracking problem of generation such as contraction and thermal stresses in fact between floated coat and the structure basic unit, relative secondary structure basic unit, it is much serious that the problem of the cracking that primary structure basic unit occurs is wanted.
Summary of the invention
It is little that technical problem to be solved by this invention provides a kind of work operations amount, engineering time continues short, resource consumption is few, and floated coat do not produce hollowing and cracking, and primary structure and secondary structure junction are not prone to the construction method of anti-plastering putty for concrete structure wall of cracking phenomena.
In order to solve the problems of the technologies described above, construction method of anti-plastering putty for concrete structure wall provided by the invention the steps include:
1, preparation of construction
1.1, relevant branch the work items prepares
1), the primary structure big wooden form support system of appropriate to the occasion employing of constructing, strengthen the control of concrete quality common fault;
2), secondary structure when construction, the body of wall width reduce floated coat thickness on intrinsic basis, but kitchen and body of wall inboard, washroom, the exterior wall outside and design and have the wall plastering layer thickness of other requirement generally will not reduce;
3), during plastering on inner walls, in primary structure of exempting to plaster and the secondary structure contact position of plastering the cracking resistance seam is set, cracking resistance is stitched wide 8~12mm, is deep to secondary structure basic unit, when rule is looked for by plastering on inner walls cover side, primary structure and secondary structure is considered as a whole;
1.2, the relevant preparation of putty construction
1), material is prepared
Mainly contain cement, special fine sand, land plaster, flexible putty, common putty, 805 environmental protection glue, special-purpose grid cloth;
2), facility are prepared
Mainly contain putty knife, sand paper, putty scraper plate, putty supporting plate, roller brush, spread pen, paintbrush, hand held, electric mixer, sieves, Plastic Drum, refining plate, invar tape, chalk line bag, film adhesive tape, covering plate, double ladder;
3), the on-the-spot preparation
Mainly be that the work items handing-over of relevant branch is checked and accepted;
4), technology is prepared
Mainly be to confide a technological secret and the model construction;
5), the labour prepares
Mainly be that the personnel of organizing construction march into the arena and the associated safety technical education;
2, base treatment
1), leaves standstill
Base treatment is the key link that guarantees construction quality, guarantees that wherein it is fundamental prerequisite that body of wall parches fully, smears in the basal plane and should place more than 10 days after finishing;
2), cleaning
To wall column beam slab surface peeling, loosening, lime-ash, drop down slurry or the like foreign material and root out with operating on; Scrub with solution of zinc sulfate or dilute hydrochloric acid solution during the frosting of the metope accumulation of salt in the surface soil, greasy dirt cleans with washing agent, cleans with clear water more at last; Should look different situation to the original coating of basic unit's construction by stages treats with a certain discrimination: loosen, flake, the old coating of embrittlement should root out it; Adhere to firm old coating sand paper hacking; Not water-fast coating should all be rooted out;
3), repair
Agent structure pitted skin, bubble, leakage being shaken, leaked light defects such as muscle, loose, mashed root can not need cement mortar to repair the repairing of handling again; Comprise that also the do not plaster shutoff of concrete member Screw arbor with nut at both-ends eye is handled to basal plane; Bigger depression using polymer cement mortar is floating, and treats its drying.Repair with putty in less hole, crack;
4), rust cleaning
The first-class antirust processing of steel bar end, nail that may expose the concrete structure;
5), back cover
If basal plane is more loose, absorbability is strong, can be in the basic unit that cleans out brush one to two time glue bottoming equably with roller, and acrylic emulsion or water-soluble building glue add 3~5 times of water dilutions, can not holiday, can not brush and too much cause trickling or pile up;
6), plaster
To local verticality or the bigger primary structure basal plane of planeness extreme difference, floating with special fine sand cement mortar or special fine sand gypsum putty;
7), filleting
The cracking resistance seam of keeping somewhere when cleaning is plastered divides all over embedding flexible putty; Before the full Puttying of first pass, carry out the subsides of cracking resistance seam place grid cloth, the available common putty of the stickup of grid cloth;
8), make up a deficiency
Before the full Puttying of first pass, earlier all basal planes are made up a deficiency obvious uneven part with putty, sand flat after doing; If it is big that basal plane is made up a deficiency thickness, should divide all over implementing;
3, negative and positive corner line construction
Lay marks of putting according to the stage bullet of plastering and horizon bullet are emitted the control line of all wall body door or window hole harmonizing yinyang linea angulata putty constructions, are benchmark with the control line with special fine sand cement mortar or special fine sand gypsum putty is floating or the putty branch time is tentatively carried out the negative and positive corner line with putty scraper plate or putty supporting plate; Can do inner corner trim between beam slab and wall column earlier according to the engineering progress situation, do body of wall negative and positive linea angulata again, do the corner line at door and window or other receipts closing in position, limit at last;
4, the full Puttying of first pass polishes
During operation putty is placed on the supporting plate, carry out blade coating putty with trowel or squeegee; First pass application 1M-1.5M guiding ruler is caught up with to scrape with the rubber scraper plate and is completely scraped, require laterally to scrape floating whole, even, smooth, closely knit smooth, line angle and arris neatly are degree, and negative and positive angle and ceiling must be looked for verticality or planeness by playing the line of ink marker, scrape thin as far as possible, must not leak and scrape, joint must not stay raft, notes not staiing doorframe and window frame and other positions, otherwise should in time clear up; After treating that first pass putty parches, polish flat, note operating and want balance with coarse sandpaper, the protection corner angle, the mill back is with the palm broom cleaning totally;
5, second time full Puttying polishes
Second time full same first pass of putty method smeared direction and preceding putty is perpendicular but scrape; The putty in back should can be constructed after last time putty is dried fully; Completely scraping the back polishes flat with coarse sandpaper, putty is handled metope for the second time, it is bright and clean, level and smooth to reach big face, and planeness checks that with the 2M guiding ruler big face is answered≤3mm, otherwise must make up a deficiency the part, carry out the 3rd time, the 4th time,, make up a deficiency with 200 watts of bulbs or 500 iodine-tungsten lamp side candling egg metopes or ceiling surface evenness, polish flat with coarse sandpaper, at last with fine sandpaper smooth being as the criterion that polish flat.
Adopt the construction method of anti-plastering putty for concrete structure wall of technique scheme, take primary structure to exempt from plastering technique, also just solved cracking destruction, and avoided this destruction is passed to the possibility of putty and dope layer attached to floated coat on the primary structure and primary structure; And directly on primary structure, carry out the putty construction, because the deadweight of putty thin thickness is little good with the primary structure compatibility, can effectively solve the hollowing and the crack problem of primary structure putty and coating.For the processing of primary structure and secondary structure handing-over, when secondary structure is wiped one's face, keep somewhere the cracking resistance seam that wide 10mm is deep to secondary structure basic unit at the junction floated coat.The setting of cracking resistance seam makes freely stretching of primary structure and secondary structure not form restriction, freely stretching of secondary structure is to be accomplished to the putty construction from secondary structure to begin to calculate like this, rather than tradition being accomplished to plastering construction from secondary structure and beginning to calculate when plastering, give secondary structure enough from flexible to the stable technology intermission phase.Before carrying out big face putty construction, embedding flexible putty in the cracking resistance seam of reserving.Flexible putty has two-way compatibility, efficiently solve the organic whole problem that is connected to become of primary structure and secondary structure place floated coat, flexible putty has better elastic simultaneously, effectively dissolve between primary structure and the secondary structure place floated coat and between primary structure and the secondary structure thermal stresses and thermal stresses to the transmission of surface layers such as putty or coating.In cracking resistance seam putty layer special-purpose grid cloth is set.It is primary structure and secondary structure contact position (width is 300mm) and then plaster with the pre-nail of grid cloth or gauze wire cloth that tradition is plastered, facts have proved grid cloth or the pre-nail of gauze wire cloth can not be retrained thermal stresses at primary structure and secondary structure contact position, can not retrain the transmission of thermal stresses, that is to say to solve surface layer cracking problem well to floated coat.Grid cloth is arranged on putty layer, effectively strengthened putty at cracking resistance seam place to the thermal stresses resistivity.From floated coat cracking resistance seam is set, to the embedding flexible putty, again to grid cloth is set, the processing of primary structure and secondary structure contact position is launched stage by stage, the per pass operation has all given to avoid the transmission successively of cracking destruction than the contraction timeliness of growing.
Adopt common wooden form support system during the primary structure construction, dry concrete construction does not improve the concrete quality national standard relatively, thereby does not increase the construction cost of primary structure; During the secondary structure construction, the body of wall width reduces floated coat thickness (kitchen and body of wall inboard, washroom, the exterior wall outside and design have the wall plastering layer thickness of other requirement not reduce) on intrinsic basis, reduce masonry and masonry mortar, reduced the deadweight of body of wall; Because primary structure is realized exempting to plaster substantially, reduce the float work amount in the decorations stage, reduced the decoration construction time, saved resources such as medium sand, cement.
When carrying out plastering on inner walls, in primary structure of exempting to plaster and the secondary structure junction of plastering gauze wire cloth or grid cloth are not set, the cracking resistance seam only is set.When carrying out the putty operation, there is defective in the primary structure part of exempting to plaster, polish, repair cutter earlier or plaster, directly carry out putty after then.Finish specially treated during the putty construction to positions such as cracking resistance crack (embedding flexible putty, subsides grid cloth), local dent, negative and positive linea angulatas in advance.The setting and the specially treated of cracking resistance seam are the characteristics of this worker method.
The anti-plastering putty for concrete structure wall construction is the comprehensive technology of a system, involve a plurality of branches the work items, field integrated management has been proposed the more requirement of Gao Gengxin, but (can also be worker's method key of success and solve the cracking problem) that the cracking problem that worker's method may occur around prevention is all the time launched, have stronger specific aim, economic environmental protection, simple to operate, promote easily, help promoting the integral body progress of workmanship.
It is shear wall structure that the present invention is particularly suitable for primary structure, and secondary structure is a spot of infilled wall, and finish coat is the interior wall body of wall of thick finishing such as putty or coating or simple finishing.
Exempt from plaster base putty construction and traditional plaster base putty and construct in the contrast of these two kinds of construction technologies, be not difficult to find, exempt from plaster base putty and construct and have remarkable advantages.In fact, on primary structure top board face and beam face, carry out exempting from the construction of plaster base putty and still be comparative maturity, the construction trend of a kind of extensive approval now.The concrete structure putty of exempting to plaster construction is that the range of application of this construction technology is further expanded, and this will also become a kind of construction trend of extensive approval.It can reduce resource effectively and consume the reduction engineering cost.Increase work efficiency, shorten the construction period, simplify construction link.
Adopt common wooden form support system during the primary structure construction, dry concrete construction does not improve the concrete quality national standard relatively, thereby does not increase the construction cost of primary structure.If the employing dry concrete construction, only form work engineering is itemized, and labour cost will improve 1.5-2.5 doubly, cost of materials will improve 2-3 doubly;
In secondary structure when construction,, the body of wall width reduce floated coat thickness on intrinsic basis, the building block of minimizing 12%-15%, cement, medium sand and the deadweight of masonry construction working amount and body of wall;
Because can realizing 80% primary structure body of wall substantially, primary structure exempts to plaster cement, medium sand, lime putty or the mortar agent of this minimizing 65%-75% and the deadweight of plastering construction workload and body of wall in the decorations stage;
Anti-plastering putty for concrete structure wall is implemented, and technology intermission problem, the operation that can solve decorations effectively interted problem and branchs family room headroom problem when checking and accepting, and reduced probability and maintenance cost that the later stage wall hollow drum ftractures significantly.
In sum, the present invention is that a kind of work operations amount is little, and the engineering time continues short, and resource consumption is few, and floated coat do not produce hollowing and cracking, and primary structure and secondary structure junction are not prone to the construction method of anti-plastering putty for concrete structure wall of cracking phenomena.
The specific embodiment
1, preparation of construction
1.1, relevant branch the work items prepares
1), the primary structure big wooden form support system of appropriate to the occasion employing of constructing, strengthen the control of concrete quality common fault;
2), secondary structure when construction, the body of wall width reduce floated coat thickness on intrinsic basis, but kitchen and body of wall inboard, washroom, the exterior wall outside and design and have the wall plastering layer thickness of other requirement generally will not reduce;
3), during plastering on inner walls when main (secondary structure plaster), at the primary structure of exempting to plaster and the secondary structure contact position of plastering (secondary structure filled wall and primary structure beam slab bottom or wall column sidepiece) cracking resistance seam (stitch wide 10mm, be deep to secondary structure basic unit) is set; When rule is looked for by plastering on inner walls cover side, primary structure and secondary structure must be considered as a whole;
1.2, the relevant preparation of putty construction
1), material is prepared
Mainly contain cement, special fine sand, land plaster, flexible putty, common putty, 805 environmental protection glue, special-purpose grid cloth etc.;
2), facility are prepared
Mainly contain putty knife, sand paper, putty scraper plate, putty supporting plate, roller brush, spread pen, paintbrush, hand held, electric mixer, sieves, Plastic Drum, refining plate, invar tape, chalk line bag, film adhesive tape, covering plate, double ladder;
3), the on-the-spot preparation
Mainly be that the work items handing-over of relevant branch is checked and accepted;
4), technology is prepared
Mainly be to confide a technological secret and the model construction;
5), the labour prepares
Mainly be that the personnel of organizing construction march into the arena and the associated safety technical education;
2, base treatment
1), leaves standstill
Base treatment is the key link that guarantees construction quality, guarantees that wherein it is fundamental prerequisite that body of wall parches fully, smears in the basal plane and should place more than 10 days after finishing;
2), cleaning
To wall column beam slab surface peeling, loosening, lime-ash, drop down slurry or the like foreign material and root out with operating on; Scrub with solution of zinc sulfate or dilute hydrochloric acid solution during the frosting of the metope accumulation of salt in the surface soil, greasy dirt cleans with washing agent, cleans with clear water more at last; Should look different situation to the original coating of basic unit's construction by stages treats with a certain discrimination: loosen, flake, the old coating of embrittlement should root out it; Adhere to firm old coating sand paper hacking; Not water-fast coating should all be rooted out;
3), repair
Agent structure pitted skin, bubble, leakage being shaken, leaked light defects such as muscle, loose, mashed root can not need cement mortar to repair the repairing of handling again; Comprise that also the do not plaster shutoff of concrete member Screw arbor with nut at both-ends eye is handled to basal plane; Bigger depression using polymer cement mortar is floating, and treats its drying.Repair with putty in less hole, crack;
4), rust cleaning
The first-class antirust processing of steel bar end, nail that may expose the concrete structure;
5), back cover
If basal plane is more loose, absorbability is strong, can be in the basic unit that cleans out brush one to two time glue bottoming (acrylic emulsion or water-soluble building glue add 3~5 times of water dilutions) equably with roller, can not holiday, can not brush and too much cause trickling or pile up;
6), plaster
To local verticality or the bigger primary structure basal plane of planeness extreme difference, floating with special fine sand cement mortar or special fine sand gypsum putty;
7), filleting
The cracking resistance seam of keeping somewhere when cleaning is plastered divides all over embedding flexible putty; Before the full Puttying of first pass, carry out the subsides of cracking resistance seam place grid cloth, the available common putty of the stickup of grid cloth;
8), make up a deficiency
Before the full Puttying of first pass, earlier all basal planes are made up a deficiency obvious uneven part with putty, sand flat after doing; If it is big that basal plane is made up a deficiency thickness, should divide all over implementing;
3, negative and positive corner line construction
Lay marks of putting according to the stage bullet of plastering and horizon bullet are emitted the control line of all wall body door or window hole harmonizing yinyang linea angulata putty constructions, are benchmark with the control line with special fine sand cement mortar or special fine sand gypsum putty is floating or the putty branch time is tentatively carried out the negative and positive corner line with putty scraper plate or putty supporting plate; Can do inner corner trim between beam slab and wall column earlier according to the engineering progress situation, do body of wall negative and positive linea angulata again, do the corner line at door and window or other receipts closing in position, limit at last;
4, the full Puttying of first pass polishes
During operation putty is placed on the supporting plate, carry out blade coating putty with trowel or squeegee; First pass application 1M-1.5M guiding ruler is caught up with to scrape with the rubber scraper plate and is completely scraped, and requirement is laterally scraped floating whole, even, smooth, closely knit smooth, and line angle and arris neatly are degree; Negative and positive angle and ceiling must be looked for verticality or planeness by playing the line of ink marker; Scrape thinly as far as possible, must not leak and scrape, joint must not stay raft, notes not staiing doorframe and window frame and other positions, otherwise should in time clear up; After treating that first pass putty parches, polish flat with coarse sandpaper; Note operating and want balance, the protection corner angle, the mill back is with the palm broom cleaning totally;
5, second time full Puttying polishes
Second time full same first pass of putty method smeared direction and preceding putty is perpendicular but scrape; The putty in back should can be constructed after last time putty is dried fully; Completely scraping the back polishes flat with coarse sandpaper, putty is handled metope for the second time, it is bright and clean, level and smooth to reach big face, and planeness checks that with the 2M guiding ruler big face is answered≤3mm, otherwise must make up a deficiency the part, carry out the 3rd time, the 4th time,, make up a deficiency with 200 watts of bulbs or 500 iodine-tungsten lamp side candling egg metopes or ceiling surface evenness, polish flat with coarse sandpaper, at last with fine sandpaper smooth being as the criterion that polish flat.
The quality control of construction method of anti-plastering putty for concrete structure wall:
1, to carry out the base treatment that base treatment is especially exempted from the primary structure of plastering.Base treatment is improper, will influence thickness, adhesive power and the intensity of putty, thereby large-area hollowing and cracking occur;
2, the processing of cracking resistance seam is crucial, must keep somewhere the cracking resistance seam on request, the pointing flexible putty, and post grid cloth;
3, before big face putty construction, must be that benchmark divides all over tentatively carrying out the negative and positive corner line with the control line, the negative and positive linea angulata must be straight, and corner angle are clear.
4, gradient is suitable during Puttying, and is firmly evenly, full to guarantee putty; One time blade coating thickness is advisable with 0.5~1mm, and it is excessive to avoid putty to shrink, and occurs ftractureing and coming off;
5, do not come and go blade coating too much,, seal the surface and be difficult for dry in order to avoid the volume skin occurs, come off or the sizing material in the putty is extruded;
When 6, filling up basic unit's hole and crack with putty knife, forefinger compresses blade, firmly putty is compressed into defective, fill up, tamp, and putty is all around received scraped totally, and the putty vestige is reduced as far as possible;
7, must use the putty and the glue of qualified environmental protection, putty must stir, and free from admixture should be finished using in 1h after putty mixes;
8, strengthen especially primary structure basal plane verticality and planeness inspection of basal plane, strengthen inspection, should carry out sign than large part, should carry out the part in advance and look for smearing or making up a deficiency and carry out the putty construction again the base layer quality deviation to negative and positive corner line position base layer quality;
9, forbid to carry out the part in the basic unit of putty again and look for and smear or make up a deficiency doing, when hollowing or crackle appear in putty, original putty must be rooted out totally can recoat and scrape.
Embodiment:
Chengdu Zhuo Jincheng R2C2 project is made up of 6 high-rise residential buildings, primary structure is shear wall structure (a shear wall wall wide and structural beams deck-siding be 200mm), secondary structure is that (local for the wide body of wall of 100mm except that positions such as kitchen, washroom, balcony, the windows that wafts, all the other positions are the wide body of wall of 200mm to the shale brick infilled wall; Common part indoor sections such as basement wall column and beam slab, stair aisle are designed to emulsion paint, and the dwelling house indoor section is common putty except that between Kitchen hygiene; Exterior wall is the EPS external thermal insulation system, and surface layer is an emulsion paint.
At engineering characteristic, just worked out the target of exempting from the plasterer's putty construction in the project planning stage, for realizing exempting from the target of plasterer's putty construction, worked out relevant template construction scheme, masonry constructure scheme, plastering construction scheme and putty coating constructure scheme round the target of exempting from the plasterer's putty construction.Because relevant branch subitem is carried out around the target of exempting from the plasterer's putty construction all the time, and exempt from plasterer's putty construction is that the problem of the hollowing crackle that may occur around prevention is all the time carried out, and therefore exempts from plasterer's putty and constructs especially that the anti-plastering putty for concrete structure wall construction has obtained success.
Chengdu Zhuo Jincheng R2C2 project anti-plastering putty for concrete structure wall implementation of processes is saved the about 1150t of cement, the about 2425m of medium sand 3, the about 1180m of shale brick 3, the about 580m of lime putty 3Save about 1 month of duration, save more than 300,000 yuan of labour cost, reduced the phenomenon and the maintenance cost of wall hollow drum cracking significantly, realize about 1,800,000 yuan of comprehensive benefit, obtained obtaining leader such as owner, design, management, Quality Supervision Station, company and expert's consistent favorable comment.

Claims (5)

1. a construction method of anti-plastering putty for concrete structure wall the steps include: the full Puttying of preparation of construction → base treatment → negative and positive corner line construction → first pass, polishes → second time full Puttying, polishes, and it is characterized in that:
1, preparation of construction
1.1, relevant branch the work items prepares
1), the primary structure big wooden form support system of appropriate to the occasion employing of constructing, strengthen the control of concrete quality common fault;
2), secondary structure when construction, the body of wall width reduce floated coat thickness on intrinsic basis, but kitchen and body of wall inboard, washroom, the exterior wall outside and design and have the wall plastering layer thickness of other requirement generally will not reduce;
3), during plastering on inner walls, in primary structure of exempting to plaster and the secondary structure contact position of plastering the cracking resistance seam is set, cracking resistance is stitched wide 8~12mm, is deep to secondary structure basic unit, when rule is looked for by plastering on inner walls cover side, primary structure and secondary structure is considered as a whole;
1.2, the relevant preparation of putty construction
1), material is prepared
Mainly contain cement, special fine sand, land plaster, flexible putty, common putty, 805 environmental protection glue, special-purpose grid cloth;
2), facility are prepared
Mainly contain putty knife, sand paper, putty scraper plate, putty supporting plate, roller brush, spread pen, paintbrush, hand held, electric mixer, sieves, Plastic Drum, refining plate, invar tape, chalk line bag, film adhesive tape, covering plate, double ladder;
3), the on-the-spot preparation
Mainly be that the work items handing-over of relevant branch is checked and accepted;
4), technology is prepared
Mainly be to confide a technological secret and the model construction;
5), the labour prepares
Mainly be that the personnel of organizing construction march into the arena and the associated safety technical education;
2. base treatment
1), leaves standstill
Base treatment is the key link that guarantees construction quality, guarantees that wherein it is fundamental prerequisite that body of wall parches fully, smears in the basal plane and should place more than 10 days after finishing;
2), cleaning
To wall column beam slab surface peeling, loosening, lime-ash, drop down slurry or the like foreign material and root out with operating on; Scrub with solution of zinc sulfate or dilute hydrochloric acid solution during the frosting of the metope accumulation of salt in the surface soil, greasy dirt cleans with washing agent, cleans with clear water more at last; Should look different situation to the original coating of basic unit's construction by stages treats with a certain discrimination: loosen, flake, the old coating of embrittlement should root out it; Adhere to firm old coating sand paper hacking; Not water-fast coating should all be rooted out;
3), repair
Agent structure pitted skin, bubble, leakage being shaken, leaked light defects such as muscle, loose, mashed root can not need cement mortar to repair the repairing of handling again; Comprise that also the do not plaster shutoff of concrete member Screw arbor with nut at both-ends eye is handled to basal plane; Bigger depression using polymer cement mortar is floating, and treats its drying.Repair with putty in less hole, crack;
4), rust cleaning
The first-class antirust processing of steel bar end, nail that may expose the concrete structure;
5), back cover
If basal plane is more loose, absorbability is strong, can be in the basic unit that cleans out brush one to two time glue bottoming equably with roller, can not holiday, and can not brush and too much cause trickling or pile up;
6), plaster
To local verticality or the bigger primary structure basal plane of planeness extreme difference, floating with special fine sand cement mortar or special fine sand gypsum putty;
7), filleting
The cracking resistance seam of keeping somewhere when cleaning is plastered divides all over embedding flexible putty; Before the full Puttying of first pass, carry out the subsides of cracking resistance seam place grid cloth, the available common putty of the stickup of grid cloth;
8), make up a deficiency
Before the full Puttying of first pass, earlier all basal planes are made up a deficiency obvious uneven part with putty, sand flat after doing; If it is big that basal plane is made up a deficiency thickness, should divide all over implementing;
3. negative and positive corner line construction
Lay marks of putting according to the stage bullet of plastering and horizon bullet are emitted the control line of all wall body door or window hole harmonizing yinyang linea angulata putty constructions, are benchmark with the control line with special fine sand cement mortar or special fine sand gypsum putty is floating or the putty branch time is tentatively carried out the negative and positive corner line with putty scraper plate or putty supporting plate; Can do inner corner trim between beam slab and wall column earlier according to the engineering progress situation, do body of wall negative and positive linea angulata again, do the corner line at door and window or other receipts closing in position, limit at last;
4. the full Puttying of first pass polishes
During operation putty is placed on the supporting plate, carry out blade coating putty with trowel or squeegee; First pass application 1M-1.5M guiding ruler is caught up with to scrape with the rubber scraper plate and is completely scraped, require laterally to scrape floating whole, even, smooth, closely knit smooth, line angle and arris neatly are degree, and negative and positive angle and ceiling must be looked for verticality or planeness by playing the line of ink marker, scrape thin as far as possible, must not leak and scrape, joint must not stay raft, notes not staiing doorframe and window frame and other positions, otherwise should in time clear up; After treating that first pass putty parches, polish flat, note operating and want balance with coarse sandpaper, the protection corner angle, the mill back is with the palm broom cleaning totally;
5. second time full Puttying polishes
Second time full same first pass of putty method smeared direction and preceding putty is perpendicular but scrape; The putty in back should can be constructed after last time putty is dried fully; Completely scraping the back polishes flat with coarse sandpaper, putty is handled metope for the second time, it is bright and clean, level and smooth to reach big face, and planeness checks that with the 2M guiding ruler big face is answered≤3mm, otherwise must make up a deficiency the part, carry out the 3rd time, the 4th time,, make up a deficiency with 200 watts of bulbs or 500 iodine-tungsten lamp side candling egg metopes or ceiling surface evenness, polish flat with coarse sandpaper, at last with fine sandpaper smooth being as the criterion that polish flat.
CNA2008100320729A 2008-08-13 2008-08-13 Construction method of anti-plastering putty for concrete structure wall Pending CN101363269A (en)

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