CN107119807B - A kind of construction method of faced concrete surface protection - Google Patents
A kind of construction method of faced concrete surface protection Download PDFInfo
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- CN107119807B CN107119807B CN201710352419.7A CN201710352419A CN107119807B CN 107119807 B CN107119807 B CN 107119807B CN 201710352419 A CN201710352419 A CN 201710352419A CN 107119807 B CN107119807 B CN 107119807B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/644—Damp-proof courses
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of construction method of faced concrete surface protection, include the following steps: 1) to carry out base treatment to clear-water concrete；2) the clear water dilution rate of priming paint is 5-10%, roller coating priming paint, it is desirable that it is primary to brush uniformly, it must not recoat；3) after priming paint is completely dried, roller coating floating coating, keeping the clear water dilution rate of floating coating is 5-10%；4) after floating coating is completely dried, roller coating silicone resin clear finish, the service time of finishing coat is 24 hours or more, and the clear water dilution rate of silicone resin clear finish is 5-10%；5) photocatalyst spray gun spraying photocatalyst finishing coat is selected, when spraying, spray tip control is sprayed-on body surface 20-30cm in distance, natural drying.The clear water dilution rate for controlling priming paint, floating coating and silicone resin clear finish is 5-10%, and priming paint is when once brushing uniform, the thickness of three layers of obtained paint is close, the physical properties such as expansion and contraction are close, obtained coating can extend the service life of coating with durable attachment on the surface of concrete.
Description
Technical field
Present invention relates particularly to a kind of construction methods of faced concrete surface protection.
Background technique
Clear-water concrete is also known as decorative concrete, gains the name due to its natural, serious decorative effect.But due to coagulation
Soil itself is easy to reduce its durability, acid resistance in the rainy season accumulation of salt in the surface soil and upper mould, own face carbonization, it is therefore desirable to clear water
Concrete surface implements safeguard measure.General technology is by applying clear dope or permeable bibulous preventing agent in concrete surface
Coating to realize, but obtain is easy to peel off, and the service life of coating is short, moreover, contain a large amount of formaldehyde in coating, easy pair
The air of surrounding pollutes.In addition, colored coating is commonly used in traditional handicraft in order to keep concrete surface color uniform
Concrete surface is handled, to the not a duck soup as concrete primary colors of mixing color, and common coating is not
Has water-proof function, the moisture in air is easy to infiltration dope layer, and moisture is easy to happen mildew and produces after entering concrete
Color spot；In some cases when moisture is evaporated with the raising of ambient temperature, it can will be dissolved in calcium hydroxide therein and take coagulation to
Native surface forms albinism, and certain influence is generated to the aesthetics of decoration.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, it is an object of the present invention to provide a kind of clear-water concretes
The construction method of surface protection.
In order to solve the above technical problems, the technical solution of the present invention is as follows:
A kind of construction method of faced concrete surface protection, includes the following steps:
1) base treatment is carried out to clear-water concrete and determines surface keynote；
2) the clear water dilution rate of priming paint is 5-10%, roller coating priming paint, it is desirable that it is primary to brush uniformly, it must not recoat；
3) after priming paint is completely dried, roller coating floating coating, keeping the clear water dilution rate of floating coating is 5-10%；
4) after floating coating is completely dried, roller coating silicone resin clear finish, the service time of finishing coat is 24 hours or more, silicon tree
The clear water dilution rate of rouge clear finish is 5-10%；
5) photocatalyst spray gun spraying photocatalyst finishing coat is selected, when spraying, spray tip control is sprayed-on object table in distance
At the 20-30cm of face, spontaneously dry.
It is thicker that recoating will lead to partial coating, perception is influenced, furthermore if partial coating is blocked up to cause desciccation crack, shadow
Ring the service life of coating.
Test prove, when priming paint, floating coating and silicone resin clear finish clear water dilution rate be 5-10%, and priming paint be one
Secondary the thickness of obtain three layers paint are close when brushing uniform, expansion and shrink etc. that physical properties are close, and obtained coating can be held
It is attached to the surface of concrete long, it is not easy to fall off, extend the service life of coating.And the coating obtained using the program,
Priming paint, floating coating and silicone resin clear finish it is reasonably combined, substantially increase the water-proof function of coating, avoid in air
Moisture penetration enter dope layer, avoid the generation of mildew and albinism, improve the aesthetics of decoration.
Priming paint refers to the coating for being directly applied to body surface as finishing coat solid foundation, can be improved finishing coat adhesive force,
Increase the richness of finishing coat, alkali resistance is provided, anti-corrosion function is provided etc., while can guarantee the uniform pickup of finishing coat, make to paint
System plays optimum efficiency.
Floating coating is mainly used as intermediate layer paint or flat enamel, to protect the clear-water concrete under corrosive environment, keeps clear water mixed
Solidifying soil has better corrosion resistance.
Finishing coat is the final coating of coating, is one layer finally smeared, and the overall effect showed after finishing is all logical
This layer is crossed to embody.
Photocatalyst is a kind of using Nano titanium dioxide as the total of the photosemiconductor material with photo-catalysis function of representative
Claim, is coated on substrate surface, under the action of optical fiber, strong catalytic degradation function can be generated, in the air that can effectively degrade
Toxic and harmful gas, can kill various bacteria simultaneously, and can decompose the toxin that bacterium or fungi release and harmless treatment；
Also have the function of deodorization, anti-pollution etc..
Brushing photocatalyst finishing coat can make faced concrete surface keep cleaning, and can decompose the formaldehyde etc. in air
Volatile organic compounds, while playing the functions such as sterilization, mould proof, anti-fouling and self-cleaning, purification air.It can effectively solve traditional
Construction method not environmentally the drawbacks of.
Preferably, in step 1), the base treatment includes the following steps: that removal is attached to the pollution of concrete surface
Object；The concrete for polishing protrusion, cuts away the reinforcing bar of protrusion；Base's inked is carried out, the basal plane of processing is made to keep concrete
Natural color.
Do the color that clear-water concrete is just intended to Concrete in Natural.
It is further preferred that the Specific Principles of base treatment are as follows: the hole less than 3mm is not repaired, and tiny flaw is not done
Processing；For faulting of slab ends of the form joint flatness less than 3mm without processing, height difference is more than after chisel polishing is picked at the position of 3mm, with repairing
Putty strikes off；Honeycomb, pitted skin, spillage obvious shortcoming at rubbed with the hands with repairing putty it is flat；
Width is less than 0.2mm, and length is less than the surface crack of 1000mm, without processing；
Template molds piece trace width, and no more than 2mm, (seaming requirements: smooth vertical and horizontal, and unanimously, level hands over circle, erects
To at line) there is no buddhist seams to be not processed；
Desultory buddhist seam is repaired with snap the line, and snap the line color is wanted naturally, peaceful shallow not deep；
After rooting out pollutant with scraper, sand paper is carefully polished, and paint is removed, is generated if any inside concrete is infiltrated into
Color difference, priming paint construction after polishing handle；
Accumulation of salt in the surface soil position with high pressure water rinse, weak acid solution clean or polished with sand paper after with putty or color adjustment material carry out
Color adjustment.
Pillar upper-lower section has color difference processing: the less interval of amendment color difference connects small color difference level with big level color
Closely.
Sudden and violent ash and local protruding part: being clogged after picking chisel with polymer cement mortar, then levelling with repairing putty；
Shadow scratch, scratch site, with sand paper polishing can remove, serious damage position not polish, using concentration compared with
Low repairing putty cover or color it is approximate color adjustment material carefully handle；
Point type repairing is made no sign, and big face repairing style is unified, without obvious color difference after repairing；
All basal planes by inked processing should keep the style and features of Concrete in Natural as far as possible, and embodiment clear water as far as possible is mixed
Solidifying native naturally texture and stereovision, cannot cover and destroy this style, apply shape effect and pursue overall feeling.
Preferably, in step 1), determine that surface keynote is handled for polishing, including desalination concrete is because pouring, caused by demoulding
Every defect, including basal plane is integrally polished, the processing of local color difference and whole polishing processing.
It is further preferred that polishing processing embodies clear-water concrete premised on keeping former clear-water concrete casting style and features
Texture and stereovision.
It is further preferred that polishing handles entirety behind first part, Local treatment can reach requirement, without whole polishing.
It is further preferred that basal plane is integrally polished, for whole polishing, the basal plane after polishing is bright and clean, non-loosening object.
It is further preferred that local color difference processing, uses color adjustment material to adjust, reaches consistent with adjacent basal plane.
It is further preferred that whole polishing processing, it is desirable that contact free of discontinuities, exhaustive, basal plane color is uniform, transparent, nothing
Obvious color difference embodies the texture and mechanism of Concrete in Natural.
Preferably, in step 2), the brushing amount of every square metre of priming paint is 0.13-0.15kg.When the clear water of control priming paint is dilute
When releasing rate and brushing amount, i.e., controllable prime coat is in optimum thickness range.
Preferably, in step 3), the brushing amount of every square metre of floating coating is 0.12-0.15kg.When control floating coating it is clear
When water amount of dilution and brushing amount, i.e., controllable prime coat is in optimum thickness range.
Preferably, in step 4), the brushing amount of every square metre of silicone resin clear finish is 0.12-0.15kg.When control silicon
When the clear water amount of dilution and brushing amount of resin transparent finishing coat, i.e., controllable silicone resin transparent side paint layer is in optimum thickness range.
The faced concrete surface protective coating that above-mentioned construction method is prepared.
The invention has the benefit that
In the present invention, the clear water dilution rate of control priming paint, floating coating and silicone resin clear finish is 5-10%, and priming paint is
When once brushing uniform, the thickness of obtain three layers paint are close, the expansion and physical properties such as to shrink close, and obtained coating can be with
Durable attachment is on the surface of concrete, it is not easy to fall off, extend the service life of coating.And the painting obtained using the program
Layer, priming paint, floating coating and silicone resin clear finish it is reasonably combined, substantially increase the water-proof function of coating, avoid sky
Moisture penetration in gas enters dope layer, avoids the generation of mildew and albinism, improves the aesthetics of decoration.
In the present invention, without using permeating waterproof material, the waterproof effect of coating can be realized, save making for material
With.Reduce operational procedure simultaneously, improves construction efficiency.
Specific embodiment
Technical solution of the present invention is described further combined with specific embodiments below.
Embodiment 1
A kind of construction method of faced concrete surface protection, includes the following steps:
1) base treatment is carried out to clear-water concrete, removal is attached to the pollutant of concrete surface；Polish the mixed of protrusion
Solidifying soil, cuts away the reinforcing bar of protrusion；Base's inked is carried out, the basal plane of processing is made to keep the color of Concrete in Natural；
1.1 base treatments: for the defect of concrete surface, the fewer the quantity and position repaired in principle the better, preferably abides by
Follow following principle:
Hole less than 3mm is not repaired, and tiny flaw is not processed；Faulting of slab ends of the form joint flatness less than 3mm is not
It is handled, height difference is more than after chisel polishing is picked at the position of 3mm, to be struck off with repairing putty；Honeycomb, pitted skin, spillage etc. significantly lack
It is flat with repairing putty stranding to fall into place；
Surface crack width is less than 0.2mm, and length is less than 1000mm, without processing；
Template molds piece trace width, and no more than 2mm, (seaming requirements: smooth vertical and horizontal, and unanimously, level hands over circle, erects
To at line) there is no buddhist seams to be not processed.
Buddhist seam processing: desultory buddhist seam needs snap the line to repair, and snap the line color is wanted naturally, peaceful shallow not deep.
Pollution: after being rooted out with scraper, sand paper is carefully polished, and paint is removed, is generated if any inside concrete is infiltrated into
Color difference, priming paint construction after polishing handle；
Accumulation of salt in the surface soil position: high pressure water rinses, weak acid solution cleaning or after being polished with sand paper with putty or color adjustment material carry out
Color adjustment.
Pillar upper-lower section has color difference processing: the less interval of amendment color difference connects small color difference level with big level color
Closely.
Sudden and violent ash and local protruding part: being clogged after picking chisel with polymer cement mortar, then levelling with repairing putty；
Scratch: shadow scratch, scratch site can remove with sand paper polishing, and serious damage position not polish, and use is dense
Spend lower repairing putty cover or color it is approximate color adjustment material carefully handle；
Point type repairing is made no sign, and big face repairing style is unified, without obvious color difference after repairing；
All basal planes by inked processing should keep the style and features of Concrete in Natural as far as possible, and embodiment clear water as far as possible is mixed
Solidifying native naturally texture and stereovision, cannot cover and destroy this style, apply shape effect and pursue overall feeling.
1.2 polishings processing:
Polishing processing should desalinate every defect such as color difference, the scratch of concrete because pouring, caused by demoulding etc., but not equally
It is completely covered in by defect, and premised on keeping the style and features of former clear-water concrete Natural.
Harmonious color difference is normal and is allowed between pillar basal plane, only when individual sites color and adjacent cylindrical color
When contrast is larger, just need to carry out polishing processing；Color difference not exclusively is avoided, before keeping former clear-water concrete casting style and features to be
It mentions, embodies the texture and stereovision of clear-water concrete as far as possible, cannot cover and destroy this style, apply shape effect and pursue entirety
Feel, is subject to and far sees effect.
After basal plane grinding process, polishing processing is carried out, whole behind first part, Local treatment can reach requirement, certainly pair
Whole polishing is not can be carried out.It is required that Local treatment is made no sign, disposed of in its entirety style is unified, without apparent repairing treatment trace
Mark.
(1) basal plane is integrally polished:
It integrally polishes for the basal plane application sand paper Jing Guo base treatment, determines that final coating style is prepared.It wants
Whole carefully polishing is asked, must not be omitted, the basal plane after polishing is answered bright and clean, loosens object without ash etc. is floated, has subsequent processing construction and want
It asks.
(2) local color difference processing:
The position for needing Local treatment is concrete itself color difference and repairing color difference, is carefully adjusted with color adjustment material,
Reach almost the same with adjacent basal plane color, in order to avoid whole coating style is influenced because of local problem.
(3) whole polishing processing:
After the processing of local color difference, if whole color difference is unobvious, color substantially close to, do not do whole polishing processing,
It avoids changing coating style.Only after the adjustment of local color difference, it was found that have in flakes, zonal large area color distinction
Afterwards, whole polishing processing is just carried out.
Whole polishing processing requirement is continuously uninterrupted, and exhaustive, basal plane color is uniform, reveals the exact details, without obvious color difference, abundant body
The texture and mechanism of existing Concrete in Natural.
2) the clear water dilution rate of priming paint is 5%, and every square metre of brushing amount is 0.14kg, roller coating priming paint, it is desirable that primary to apply
Brush uniformly, must not recoat；
3) after priming paint is completely dried, roller coating floating coating, keeping the clear water dilution rate of floating coating is 10%, every square metre of painting
Brush amount is 0.15kg；
4) after floating coating is completely dried, roller coating silicone resin clear finish, the service time of finishing coat is 24 hours or more, silicon tree
The clear water dilution rate of rouge clear finish is 10%, and every square metre of brushing amount is 0.13kg；
5) photocatalyst spray gun spraying photocatalyst finishing coat is selected, when spraying, spray tip control is sprayed-on object table in distance
At the 25cm of face, spontaneously dry.
The clear-water concrete protective layer of preparation can be used continuously 20 years or more.
Embodiment 2
A kind of construction method of faced concrete surface protection, includes the following steps:
1) base treatment is carried out to clear-water concrete, removal is attached to the pollutant of concrete surface；Polish the mixed of protrusion
Solidifying soil, cuts away the reinforcing bar of protrusion；Base's inked is carried out, the basal plane of processing is made to keep the color of Concrete in Natural；
2) the clear water dilution rate of priming paint is 10%, and every square metre of brushing amount is 0.15kg, roller coating priming paint, it is desirable that primary to apply
Brush uniformly, must not recoat；
3) after priming paint is completely dried, roller coating floating coating, keeping the clear water dilution rate of floating coating is 7%, every square metre of painting
Brush amount is 0.13kg；
4) after floating coating is completely dried, roller coating silicone resin clear finish, the service time of finishing coat is 24 hours or more, silicon tree
The clear water dilution rate of rouge clear finish is 10%, and every square metre of brushing amount is 0.14kg；
5) photocatalyst spray gun spraying photocatalyst finishing coat is selected, when spraying, spray tip control is sprayed-on object table in distance
At the 20cm of face, spontaneously dry.
The clear-water concrete protective layer of preparation can be used continuously 20 years or more.
Embodiment 3
A kind of construction method of faced concrete surface protection, includes the following steps:
1) base treatment is carried out to clear-water concrete, removal is attached to the pollutant of concrete surface；Polish the mixed of protrusion
Solidifying soil, cuts away the reinforcing bar of protrusion；Base's inked is carried out, the basal plane of processing is made to keep the color of Concrete in Natural；
2) the clear water dilution rate of priming paint is 5%, and every square metre of brushing amount is 0.15kg, roller coating priming paint, it is desirable that primary to apply
Brush uniformly, must not recoat；
3) after priming paint is completely dried, roller coating floating coating, keeping the clear water dilution rate of floating coating is 10%, every square metre of painting
Brush amount is 0.14kg；
4) after floating coating is completely dried, roller coating silicone resin clear finish, the service time of finishing coat is 24 hours or more, silicon tree
The clear water dilution rate of rouge clear finish is 7%, and every square metre of brushing amount is 0.13kg；
5) photocatalyst spray gun spraying photocatalyst finishing coat is selected, when spraying, spray tip control is sprayed-on object table in distance
At the 30cm of face, spontaneously dry.
The clear-water concrete protective layer of preparation can be used continuously 20 years or more.
Although above-mentioned in conjunction with specific embodiments of the present invention have been described, not to the limit of invention protection scope
System, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art do not need to pay
The various modifications or changes that creative work can be made out are still within the scope of the present invention.
Claims (10)
1. a kind of construction method of faced concrete surface protection, characterized by the following steps:
1) base treatment is carried out to clear-water concrete and determines surface keynote；
2) the clear water dilution rate of priming paint is 5-10%, roller coating priming paint, it is desirable that it is primary to brush uniformly, it must not recoat；
3) after priming paint is completely dried, roller coating floating coating, keeping the clear water dilution rate of floating coating is 5-10%；
4) after floating coating is completely dried, roller coating silicone resin clear finish, the service time of finishing coat is 24 hours or more, and silicone resin is saturating
The clear water dilution rate of bright finishing coat is 5-10%；
5) photocatalyst spray gun spraying photocatalyst finishing coat is selected, when spraying, spray tip control is sprayed-on body surface 20- in distance
At 30cm, spontaneously dry.
2. construction method according to claim 1, it is characterised in that: in step 1), the base treatment includes following step
Rapid: removal is attached to the pollutant of concrete surface；The concrete for polishing protrusion, cuts away the reinforcing bar of protrusion；Base is carried out to repair
Coloring is mended, the basal plane of processing is made to keep the color of Concrete in Natural.
3. construction method according to claim 2, it is characterised in that: in step 1), the Specific Principles of base treatment are as follows: small
It is not repaired in the hole of 3mm, tiny flaw is not processed；Faulting of slab ends of the form joint flatness less than 3mm is high without processing
Difference is more than after chisel polishing is picked at the position of 3mm, to be struck off with repairing putty；Honeycomb, pitted skin, spillage obvious shortcoming at use repairing putty
It rubs with the hands flat；
Width is less than 0.2mm, and length is less than the surface crack of 1000mm, without processing；
Template molding piece trace width is not processed no more than 2mm and without buddhist seam；
Desultory buddhist seam is repaired with snap the line；
After rooting out pollutant with scraper, sand paper is carefully polished, and paint is removed, if any the color for infiltrating into inside concrete and generating
Difference, polishing is handled after priming paint construction；
Accumulation of salt in the surface soil position with high pressure water rinse, weak acid solution clean or polished with sand paper after with putty or color adjustment material carry out color
Adjustment；
Pillar upper-lower section has color difference processing: the less interval of amendment color difference keeps small color difference level and big level color close；
Sudden and violent ash and local protruding part are clogged after picking chisel with polymer cement mortar, then levelling with repairing putty；
Shadow scratch, scratch site are polished with sand paper and are removed, and serious damage position not polish, and use the lower repairing of concentration
Putty cover or color it is approximate color adjustment material carefully handle；
Point type repairing is made no sign, and big face repairing style is unified, without obvious color difference after repairing；
It is all by inked processing basal planes keep Concrete in Natural style and features, embody the natural texture of clear-water concrete and
Stereovision.
4. construction method according to claim 2, it is characterised in that: in step 1), determine that surface keynote is handled for polishing,
Including desalination concrete because pouring, caused by demoulding every defect, including basal plane integrally polish, local color difference processing and entirety are moistened
Color processing.
5. construction method according to claim 2, it is characterised in that: polishing processing is to keep former clear-water concrete casting wind
Premised on looks, the texture and stereovision of clear-water concrete are embodied.
6. construction method according to claim 4, it is characterised in that: polishing handles whole, Local treatment energy behind first part
Reach requirement, without whole polishing.
7. construction method according to claim 4, it is characterised in that: basal plane is integrally polished, and is polished to be whole, after polishing
Basal plane is bright and clean, non-loosening object；
Local color difference processing, uses color adjustment material to adjust, reaches consistent with adjacent basal plane；
Whole polishing processing, it is desirable that contact free of discontinuities, exhaustive, basal plane color is uniform, it is transparent, without obvious color difference, embody coagulation
Native naturally texture and mechanism.
8. construction method according to claim 1, it is characterised in that: in step 2), the brushing amount of every square metre of priming paint is
0.13-0.15kg。
9. construction method according to claim 1, it is characterised in that: in step 3), the brushing amount of every square metre of floating coating
For 0.12-0.15kg；
In step 4), the brushing amount of every square metre of silicone resin clear finish is 0.12-0.15kg.
10. the faced concrete surface protective coating that any construction method of claim 1-9 is prepared.
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| CN111997259A (en) * | 2020-08-21 | 2020-11-27 | 上海建工建材科技集团股份有限公司 | Waterproof construction method for surface of fair-faced concrete prefabricated part plate |
| CN112960959A (en) * | 2021-02-22 | 2021-06-15 | 中国铁路设计集团有限公司 | Clear water-like concrete protective agent and construction method thereof |
| CN117188709B (en) * | 2023-11-07 | 2024-02-27 | 北京建工四建工程建设有限公司 | Dry-hanging construction method for large-plate-shaped concrete plate |
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