CN113982208B - Construction method of bare concrete protective agent for exterior wall facing - Google Patents
Construction method of bare concrete protective agent for exterior wall facing Download PDFInfo
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- CN113982208B CN113982208B CN202111318858.9A CN202111318858A CN113982208B CN 113982208 B CN113982208 B CN 113982208B CN 202111318858 A CN202111318858 A CN 202111318858A CN 113982208 B CN113982208 B CN 113982208B
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- 238000010276 construction Methods 0.000 title claims abstract description 48
- 239000003223 protective agent Substances 0.000 title claims abstract description 36
- 239000000839 emulsion Substances 0.000 claims abstract description 47
- 239000011248 coating agent Substances 0.000 claims abstract description 42
- 238000000576 coating method Methods 0.000 claims abstract description 42
- 238000004040 coloring Methods 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 238000005498 polishing Methods 0.000 claims abstract description 15
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000006184 cosolvent Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 9
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 9
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 9
- 239000005011 phenolic resin Substances 0.000 claims abstract description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 9
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 15
- 239000003973 paint Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 230000001680 brushing effect Effects 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 239000010419 fine particle Substances 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 244000007853 Sarothamnus scoparius Species 0.000 claims description 6
- 230000003373 anti-fouling effect Effects 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000007761 roller coating Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 244000137852 Petrea volubilis Species 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000004075 alteration Effects 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000037452 priming Effects 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000003599 detergent Substances 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 239000002585 base Substances 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000006103 coloring component Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D115/00—Coating compositions based on rubber derivatives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/04—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C09D127/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09D161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0296—Repairing or restoring facades
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a construction method of an exposed concrete protective agent for an exterior wall facing, which comprises the following steps: s1, providing a bare concrete protective agent for exterior wall facing construction: the bare concrete protective agent is prepared from the following raw materials: the raw materials comprise the following components in parts by weight: 4-6 parts of polyvinyl chloride resin emulsion, 4-8 parts of fluorosilicone resin emulsion, 5-8 parts of phenolic resin emulsion, 3-5 parts of water-soluble acrylic resin emulsion, 6-8 parts of amino-terminated liquid nitrile rubber, 5-8 parts of pure acrylic emulsion, 0.6-0.8 part of silane coupling agent, 4-6 parts of nano titanium dioxide solution, 0.8-1.2 parts of graphene ink, 0.2-0.3 part of defoaming agent and 0.3-1.2 parts of hydrophilic cosolvent; according to the invention, through substrate repairing treatment, polishing treatment, wall surface cleaning and color adjustment, corresponding coloring materials are prepared according to the external wall color confirmed by a design institute, the natural texture of the concrete is kept during construction, and finally, the coating is carried out in six steps.
Description
Technical Field
The invention relates to the technical field of fair-faced concrete construction, in particular to a construction method of a fair-faced concrete protective agent for an outer wall veneer.
Background
The bare concrete is in a porous and spongy alkaline structure, is exposed in a natural environment and is corroded by sunlight, rain, wind, snow, microorganisms and atmospheric pollution to cause the damage phenomena of weathering, corrosion, neutralization, salt damage and the like of the surface of the concrete.
The fair-faced concrete has the following problems in coating the exterior wall veneer:
the common transparent primer can cause serious discoloration of the porous and spongy as-cast finish concrete, and meanwhile, the organic color paste is adopted to repair the inorganic concrete, so that the problems of discoloration and insufficient adhesive force obviously exist, and the common finish paint has insufficient weather resistance and stain resistance to protect the concrete for a long time and can cause yellowing and aging in a short time;
therefore, a construction method of the bare concrete protective agent for the exterior wall facing is provided.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a construction method of a bare concrete protectant for exterior wall finishes, so as to solve or alleviate the technical problems in the prior art, and at least provide a useful choice.
The technical scheme of the embodiment of the invention is realized as follows: a construction method of a bare concrete protective agent for exterior wall veneers comprises the following steps: s1, providing a bare concrete protective agent for exterior wall facing construction: the bare concrete protective agent is prepared from the following raw materials:
the raw materials comprise the following components in parts by weight: 4-6 parts of polyvinyl chloride resin emulsion, 4-8 parts of fluorosilicone resin emulsion, 5-8 parts of phenolic resin emulsion, 3-5 parts of water-soluble acrylic resin emulsion, 6-8 parts of amino-terminated liquid nitrile rubber, 5-8 parts of pure acrylic emulsion, 0.6-0.8 part of silane coupling agent, 4-6 parts of nano titanium dioxide solution, 0.8-1.2 parts of graphene ink, 0.2-0.3 part of defoaming agent and 0.3-1.2 parts of hydrophilic cosolvent;
s2, wall surface treatment: repairing a substrate, polishing, cleaning a wall surface and adjusting color;
s3, coating: when coating, the method comprises the following steps:
s31, priming coating: uniformly constructing clear water primer;
s32, primary inorganic coloring, wherein the bare concrete protective agent is used for I times:
after 2-4h, uniformly adjusting construction, inorganic coloring and roller coating construction for 1 time;
s33, secondary inorganic coloring, and using the bare concrete protective agent II times:
after 2-4h, uniformly adjusting construction, inorganic coloring and roll coating construction for 2 times;
s34, inorganic coloring for three times, and coating a clear water concrete protective agent III times:
after 2-4h, uniformly adjusting construction, inorganic coloring, and uniformly patting for the first time;
s35, finishing coat I: after 2-4h of interval, uniformly constructing the fair-faced concrete finish with high weather resistance;
s36, finishing paint II: and the second finish paint is dustproof and antifouling nano finish paint, and the dustproof and antifouling nano finish paint for the clear water concrete is uniformly constructed after 2-4 h.
S37, observing the wall surface finish degree, and selecting whether to use an angle grinder for grinding.
In some embodiments: in step S2, the substrate repairing process includes the following steps:
s21, polishing the part which influences the visual effect by an angle grinder;
s22, removing tiny steel bars, iron wires, small screws and nails remained on the wall body before construction: where repair is required, the mark is made of a material that can be removed with a cloth.
S23, repairing the more concentrated honeycomb places, wherein the repairing material is repairing putty, and the color of the repairing putty is as consistent as possible with the color of the surface of the concrete;
s24, filling and repairing honeycomb holes with the diameter of more than 3mm and cracks with the width of more than 0.2mm on the surface of the concrete; holes smaller than 3mm and cracks smaller than 0.3mm are not repaired;
s25, height difference of the base layer staggered mould part is more than 3 mm: leveling a part polished by a turbine by using a chisel, leveling the part by using a grinder, and repairing and leveling the ground part by using cement mortar;
s26, preparing putty for troweling and filling the polished part, and scraping off redundant putty after troweling;
s27, detecting the length of the flaw on the wall surface, wherein when the length of the flaw is less than 2cm, the flaw part is not repaired;
s28, detecting the flat state, the color and the edges and corners of the internal and external corners of the whole surface layer of the wall surface;
s29, open seam repairing: and repairing the reserved member when the open seam has defects.
In some embodiments: in the step S2, the surfaces of all clear water are finely ground by using abrasive cloth during grinding treatment until the original concrete substrate is exposed;
when the putty falls off due to polishing, the putty with more glue is prepared again for repairing and polishing until the completion.
In some embodiments: in the step S2, when the concrete wall is cleaned, a broom or a cleaning cloth is adopted to clean all the wall surfaces, the broom or the cleaning cloth is used to clean the wall surfaces, and no dust or sticky and floating impurities are left on the concrete wall surfaces before repairing, adjusting and coating;
the parts with greasy dirt on the wall surface are cleaned by a neutral cleaning agent and then cleaned by high-pressure water, so that the surface of the concrete is clean and thorough during coating, and the original mechanism of the concrete is reflected perfectly.
If the wall surface needs to be cleaned, the next procedure can be carried out after all the wall surface is completely dried.
In some embodiments: in the step S2, during color adjustment, the adjustment of the part must use little adjustment material, the adjusted part is limited to the repaired part or the part with extremely serious chromatic aberration, the repaired color is close to the surface color around the repaired part, and the floating dust and fine particles are removed by the back of the abrasive cloth after the color adjustment; the final effect of the project must meet the following criteria: the clear, transparent and invisible original texture and mechanism of the concrete fully reflect the characteristics of the concrete, so that the concrete becomes the fair-faced concrete with a real fair-faced effect.
Adjusting the color area to be larger than 2m 2 。
When in adjustment, the repaired part and the serious color difference area are adjusted firstly, and the whole adjustment is carried out after the parts are consistent;
when the color of the serious part is allowed to be kept inconsistent during adjustment, the area of the reserved part is not more than 0.1m 2 And the influence on the whole due to local parts is avoided.
After the adjustment is finished, the fine particles of the adjusting material are ground by the back of the sand paper, so that the wall body can absorb the fine particles more uniformly.
In some embodiments: in the step S3, during coating work, the parts which are segmented and step-by-step are positioned at the abutted seam from top to bottom during coating;
the brushing direction and the stroke length are consistent during brushing.
In some embodiments: in the step S1, when the bare concrete protective agent is prepared, the polyvinyl chloride resin emulsion, the fluorosilicone resin emulsion, the phenolic resin emulsion, and the water-soluble acrylic resin emulsion are placed in a stirring barrel, the stirring speed is 150-300r/min, the stirring is carried out for 35-45min, the amino-terminated liquid nitrile rubber is added, the stirring is carried out for 8-15min, the acrylic emulsion, the silane coupling agent, the nano titanium dioxide solution, the graphene ink and the hydrophilic cosolvent are added, the stirring is carried out for 15-35min, and finally, the defoaming agent is added, and the stirring is carried out for 8-12min, so as to obtain the bare concrete protective agent.
In some embodiments: the nano titanium dioxide solution is prepared from nano titanium dioxide and water according to the weight ratio of 1:80, and preparing the medicament.
Due to the adoption of the technical scheme, the embodiment of the invention has the following advantages:
1. according to the invention, through base repairing treatment, polishing treatment, wall surface cleaning and color adjustment, according to the color of an outer wall confirmed by a design institute, a corresponding coloring material is prepared, the natural texture lines of the concrete are kept during construction, and finally, the coating is carried out in six steps, the wall surface finish degree is observed after the coating is finished, whether the grinding is needed by using an angle grinder or not is selected, the primer is uniformly, fully and seamlessly coated, the permeability of the clear water concrete primer is fully ensured, and the design and construction quality is ensured.
2. The permeable waterproof primer is adopted for construction, and the permeable waterproof primer penetrates into the concrete to form a hydrophobic drying layer with a certain depth, so that the invasion of external water and the effluence of soluble alkali in the concrete are prevented, the concrete which is lack of bearing capacity, such as pulverization, sanding, looseness and the like, can be reinforced, and the outward evaporation and diffusion of internal water vapor are not hindered.
3. The invention selects three times of inorganic coloring, and uses the ARTPOWDER as a middle layer patching material of the fair-faced concrete coating as 3 inorganic coloring components with different depths. The concrete surface can be repaired by the repair material closest to the natural color of the concrete by matching and color mixing according to the actual condition of the clear water base surface and adding the special waterproof emulsion.
4. The invention adopts polyvinyl chloride resin emulsion, fluorosilicone resin emulsion, phenolic resin emulsion and water-soluble acrylic resin emulsion as raw materials to produce and process the fair-faced concrete protective agent, reduces the reaction speed by adding amino liquid nitrile rubber, improves the stability of the protective agent, and simultaneously adds the pure acrylic emulsion, the silane coupling agent, the nano titanium dioxide solution, the graphene ink and the hydrophilic cosolvent to produce the fair-faced concrete protective agent with high weather resistance and stain resistance, greatly improves the appearance aesthetic property of the fair-faced concrete and can protect the concrete for a long time.
The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention provides a construction method of a bare concrete protectant for exterior wall finishing, including the following steps: s1, providing a bare concrete protective agent for exterior wall facing construction: the bare concrete protective agent is prepared from the following raw materials:
the raw materials comprise the following components in parts by weight: 4-6 parts of polyvinyl chloride resin emulsion, 4-8 parts of fluorosilicone resin emulsion, 5-8 parts of phenolic resin emulsion, 3-5 parts of water-soluble acrylic resin emulsion, 6-8 parts of amino-terminated liquid nitrile rubber, 5-8 parts of pure acrylic emulsion, 0.6-0.8 part of silane coupling agent, 4-6 parts of nano titanium dioxide solution, 0.8-1.2 parts of graphene ink, 0.2-0.3 part of defoaming agent and 0.3-1.2 parts of hydrophilic cosolvent;
s2, wall surface treatment: repairing a substrate, polishing, cleaning a wall surface and adjusting color;
s3, coating: when coating, the method comprises the following steps:
s31, priming coating: uniformly constructing clear water primer;
s32, inorganic coloring for one time, wherein the bare concrete protective agent is prepared by the following steps:
after 2-4h, uniformly adjusting construction, performing inorganic coloring, and performing roller coating construction for 1 time;
s33, secondary inorganic coloring, namely, using the bare concrete protective agent II times:
after 2-4h, uniformly adjusting construction, inorganic coloring and roll coating construction for 2 times;
s34, inorganic coloring for three times, and coating a clear water concrete protective agent III times:
after 2-4h, uniformly adjusting construction, inorganic coloring, and uniformly patting for the first time;
s35, finishing paint I: after 2-4h of interval, uniformly constructing the fair-faced concrete finish with high weather resistance;
s36, finishing paint II: and the second finish is dustproof and antifouling nano finish, and the clean water concrete dustproof and antifouling nano finish is uniformly constructed after 2-4h intervals.
S37, observing the wall surface finish degree, and selecting whether to use an angle grinder for grinding.
In this embodiment: when coating, the parts should be from top to bottom and the parts should be at the joint. Before the coating is coated, the coating is fully mixed and stirred or shaken. The method adopts the modes of brush coating, roller coating and patting. When the brush is used for brushing, the brushing direction and the stroke length are consistent, the drying speed is high due to high temperature during construction in a rainy period, short brushes are frequently needed to be dipped, and joints are left at dividing joints. During roller coating, a small amount of paint is dipped on a roller and then the roller rolls back and forth on the wall surface smoothly and stably, and the roller is straight up and down, so that the phenomenon of twisting and snaking is avoided, and the paint is consistent in thickness and color. Brushing a tool: long brush, scrubbing brush, roller, and rag for patting. Coating interval: 2-4 hours. Note that: construction is not allowed in rainy days; the lowest construction temperature is not lower than the lowest film forming temperature of the coating; the storage of the coating is carried out according to the requirement, and the temperature cannot be too high or too low; the service life of the coating is within the storage life of the coating; the construction tool needs to be cleaned in advance, and impurities such as dust cannot be brought into the coating.
In one embodiment: in step S2, the substrate repairing process includes the steps of:
s21, polishing the part which influences the visual effect by an angle grinder;
s22, removing tiny steel bars, iron wires, small screws and nails remained on the wall body before construction: where repair is required, the mark is made of a material that can be removed with a cloth.
S23, repairing the more concentrated honeycomb places, wherein the repairing material is repairing putty, and the color of the repairing putty is as consistent as possible with the color of the surface of the concrete;
s24, filling and repairing honeycomb holes with the diameter of more than 3mm and cracks with the width of more than 0.2mm on the surface of the concrete; holes smaller than 3mm and cracks smaller than 0.3mm are not repaired;
s25, height difference of the base layer staggered mould part is more than 3 mm: leveling a part polished by a turbine by using a chisel, leveling the part by using a grinder, and repairing and leveling the ground part by using cement mortar;
s26, preparing putty for trowelling and filling the polished part, and scraping off excessive putty after trowelling;
s27, detecting the length of the flaw on the wall surface, wherein when the length of the flaw is less than 2cm, the flaw part is not repaired;
s28, detecting the flat state, the color and the edges and corners of the internal and external corners of the whole surface layer of the wall surface;
s29, open seam repairing: and repairing the reserved member when the open seam has defects.
In one embodiment: in the step S2, the surfaces of all clear water are finely ground by using abrasive cloth during grinding treatment until the original concrete substrate is exposed;
when the phenomenon of putty falling off occurs during polishing, the putty with more glue is prepared again for repairing and polishing until the completion.
In one embodiment: in the step S2, when the concrete wall is cleaned, a broom or a cleaning cloth is adopted to clean all the wall surfaces, the broom or the cleaning cloth is used to clean the wall surfaces, and no dust or sticky and floating impurities are left on the concrete wall surfaces before the concrete wall surfaces are cleaned, repaired, adjusted and coated;
the parts with greasy dirt on the wall surface are cleaned by neutral detergent and then cleaned by high-pressure water.
If the wall surface needs to be cleaned, the next procedure can be carried out only after all the wall surface is completely dried after the wall surface is cleaned.
In one embodiment: in step S2, the part adjusted during color adjustment is limited to a repaired part or a part with extremely serious chromatic aberration, the repaired color is close to the surface color around the repaired part, and floating dust and fine particles are removed by the back of an abrasive cloth after the color adjustment;
adjusting the color area to be larger than 2m 2 。
When in adjustment, the repaired part and the serious color difference area are adjusted firstly, and the whole adjustment is carried out after the parts are consistent;
when the color of the serious part is allowed to be kept inconsistent during adjustment, the area of the reserved part is not more than 0.1m 2 ；
After the adjustment is finished, the fine particles of the adjusting material are ground off by using the back of the sand paper.
In one embodiment: in step S3, during coating work, the part which is segmented and step-by-step is positioned at the abutted seam from top to bottom during coating;
the brushing direction and the stroke length are consistent during brushing.
In one embodiment: in the step S1, when the bare concrete protective agent is prepared, the polyvinyl chloride resin emulsion, the fluorosilicone resin emulsion, the phenolic resin emulsion, and the water-soluble acrylic resin emulsion are placed in a stirring barrel, the stirring speed is 150-300r/min, the stirring is carried out for 35-45min, the amino-terminated liquid nitrile rubber is added, the stirring is carried out for 8-15min, the acrylic emulsion, the silane coupling agent, the nano titanium dioxide solution, the graphene ink and the hydrophilic cosolvent are added, the stirring is carried out for 15-35min, and finally, the defoaming agent is added, and the stirring is carried out for 8-12min, so as to obtain the bare concrete protective agent.
In one embodiment: the hydrophilic cosolvent is one or more of methanol, ethanol, n-butanol and propylene glycol n-butyl ether.
1. According to the invention, through base repairing treatment, polishing treatment, wall surface cleaning and color adjustment, according to the color of an outer wall confirmed by a design institute, a corresponding coloring material is prepared, the natural texture lines of the concrete are kept during construction, and finally, the coating is carried out in six steps, the wall surface finish degree is observed after the coating is finished, whether the grinding is needed by using an angle grinder or not is selected, the primer is uniformly, fully and seamlessly coated, the permeability of the clear water concrete primer is fully ensured, and the design and construction quality is ensured.
2. The permeable waterproof primer is adopted for construction, and the permeable waterproof primer penetrates into the concrete to form a hydrophobic drying layer with a certain depth, so that the invasion of external water and the effluence of soluble alkali in the concrete are prevented, the concrete which is lack of bearing capacity, such as pulverization, sanding, looseness and the like, can be reinforced, and the outward evaporation and diffusion of internal water vapor are not hindered.
3. The invention selects three times of inorganic coloring, and uses the ARTPOWDER as a middle layer patching material of the fair-faced concrete coating as 3 inorganic coloring components with different depths. The concrete surface can be repaired by matching and color matching according to the actual condition of the clear water base surface and adding the special waterproof emulsion to the repair material closest to the natural color of the concrete.
4. The invention adopts polyvinyl chloride resin emulsion, fluorosilicone resin emulsion, phenolic resin emulsion and water-soluble acrylic resin emulsion as raw materials to produce and process the fair-faced concrete protective agent, reduces the reaction speed by adding amino liquid nitrile rubber, improves the stability of the protective agent, and simultaneously adds the pure acrylic emulsion, the silane coupling agent, the nano titanium dioxide solution, the graphene ink and the hydrophilic cosolvent to produce the fair-faced concrete protective agent with high weather resistance and stain resistance, greatly improves the appearance aesthetic property of the fair-faced concrete and can protect the concrete for a long time.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A construction method of a bare concrete protective agent for exterior wall veneers is characterized by comprising the following steps:
s1, providing a bare concrete protective agent for exterior wall facing construction: the bare concrete protective agent is prepared from the following raw materials:
the raw materials comprise the following components in parts by weight: 4-6 parts of polyvinyl chloride resin emulsion, 4-8 parts of fluorosilicone resin emulsion, 5-8 parts of phenolic resin emulsion, 3-5 parts of water-soluble acrylic resin emulsion, 6-8 parts of amino-terminated liquid nitrile rubber, 5-8 parts of pure acrylic emulsion, 0.6-0.8 part of silane coupling agent, 4-6 parts of nano titanium dioxide solution, 0.8-1.2 parts of graphene ink, 0.2-0.3 part of defoaming agent and 0.3-1.2 parts of hydrophilic cosolvent;
s2, wall surface treatment: repairing a substrate, polishing, cleaning a wall surface and adjusting color;
in step S2, the substrate repairing process includes the following steps:
s21, polishing the part which influences the visual effect by an angle grinder;
s22, removing fine steel bars, iron wires, small screws and nails remained on the wall body before construction: marking the place needing to be repaired with a substance which can be removed by cloth;
s23, repairing the part where the honeycomb is concentrated, wherein the repairing material is repairing putty, and the color of the repairing putty is as consistent as possible with the color of the surface of the concrete;
s24, filling and repairing honeycomb holes with the diameter of the concrete surface larger than 3mm and cracks with the width larger than 0.2 mm; for holes smaller than 3mm and cracks smaller than 0.3mm, no repair is carried out;
s25, height difference of the base layer staggered mould part is more than 3 mm: leveling a part polished by a turbine by using a chisel, leveling the part by using a grinder, and repairing and leveling the ground part by using cement mortar;
s26, preparing putty for troweling and filling the polished part, and scraping off redundant putty after troweling;
s27, detecting the length of the flaw on the wall surface, wherein when the length of the flaw is less than 2cm, the flaw part is not repaired;
s28, detecting the flat state, the color and the edges and corners of the internal and external corners of the integral surface layer of the wall surface;
s29, open seam repairing: repairing the reserved member when the open joint has defects;
in the step S2, the surfaces of all clear water are finely ground by using abrasive cloth during grinding treatment until the original concrete substrate is exposed;
when the phenomenon of putty falling off occurs due to polishing, the putty with more glue is prepared again for repairing and polishing until the completion;
s3, coating: when coating, the method comprises the following steps:
s31, priming coating: uniformly constructing clear water primer;
s32, primary inorganic coloring, wherein the bare concrete protective agent is used for I times:
after 2-4h, uniformly adjusting construction, inorganic coloring and roller coating construction for 1 time;
s33, secondary inorganic coloring, and using the bare concrete protective agent II times:
after 2-4h, uniformly adjusting construction, inorganic coloring and roll coating construction for 2 times;
s34, inorganic coloring for three times, and coating a clear water concrete protective agent III times:
after 2-4h, uniformly adjusting construction, inorganic coloring, and uniformly patting for the first time;
s35, finishing paint I: after 2-4h of interval, uniformly constructing the fair-faced concrete finish paint with high weather resistance;
s36, finishing paint II: the second finish paint is dustproof and antifouling nano finish paint, and clear water concrete dustproof and antifouling nano finish paint is uniformly constructed after 2-4h intervals;
s37, observing the wall surface finish degree, and selecting whether to use an angle grinder for grinding.
2. The construction method of the bare concrete protectant for exterior wall finishes as claimed in claim 1, wherein: in the step S2, when cleaning, a broom or a cleaning cloth is adopted to clean all the wall surfaces, the broom or the cleaning cloth is used to clean the wall surfaces, and no dust or sticky and floating impurities are left on the concrete wall surfaces before repairing, adjusting and coating;
cleaning the greasy dirt part of the wall surface by using a neutral detergent, and then cleaning by using high-pressure water;
if the wall surface needs to be cleaned, the next procedure can be carried out after all the wall surface is completely dried.
3. The construction method of the bare concrete protectant for exterior wall finishes as claimed in claim 1, wherein: in the step S2, the adjusted part is limited to the repaired part or the part with extremely serious chromatic aberration during color adjustment, the repaired color is close to the surface color around the repaired part, and floating dust and fine particles are removed by the back of the abrasive cloth after the color adjustment;
adjusting the color area to be larger than 2m 2 ；
When adjusting, the repaired parts and the serious color difference area are adjusted firstly, and then the whole adjustment is carried out after the parts are consistent;
when the color of the serious part is allowed to be inconsistent during adjustment, the area of the reserved part is not more than 0.1m 2 ；
After the adjustment is finished, the fine particles of the adjusting material are ground off by using the back of the sand paper.
4. The construction method of the bare concrete protectant for exterior wall finishes as claimed in claim 1, wherein: in the step S3, during coating work, the parts which are segmented and step-by-step are positioned at the abutted seam from top to bottom during coating;
the brushing direction and the stroke length are consistent during brushing.
5. The construction method of the bare concrete protectant for exterior wall finishes as claimed in claim 1, wherein: in the step S1, when the bare concrete protective agent is prepared, the polyvinyl chloride resin emulsion, the fluorosilicone resin emulsion, the phenolic resin emulsion, and the water-soluble acrylic resin emulsion are placed in a stirring barrel, the stirring speed is 150-300r/min, the stirring is carried out for 35-45min, the amino-terminated liquid nitrile rubber is added, the stirring is carried out for 8-15min, the acrylic emulsion, the silane coupling agent, the nano titanium dioxide solution, the graphene ink and the hydrophilic cosolvent are added, the stirring is carried out for 15-35min, and finally, the defoaming agent is added, and the stirring is carried out for 8-12min, so as to obtain the bare concrete protective agent.
6. The construction method of the bare concrete protectant for exterior wall finishes as claimed in claim 5, wherein: the nano titanium dioxide solution is prepared from nano titanium dioxide and water according to the weight ratio of 1:80, and preparing the medicament.
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| JP3171429B2 (en) * | 1996-05-15 | 2001-05-28 | 正栄建装株式会社 | Color matching restoration method of concrete surface and method of reproducing concrete spot pattern using patterning roller |
| JPH1053445A (en) * | 1996-08-06 | 1998-02-24 | Daicel Huels Ltd | Cement hardening retarder and cement hardening retarding sheet |
| JPH10101967A (en) * | 1996-09-27 | 1998-04-21 | Sato Kogyo Kk | Primer composition for forming wall surface of building and method for forming wall surface of building |
| CN104086220B (en) * | 2014-06-30 | 2016-08-24 | 北京市蓝宝新技术股份有限公司 | Protective agent and manufacture method thereof are repaired in a kind of clear-water concrete top layer |
| CN108331279B (en) * | 2018-02-05 | 2019-11-05 | 江苏苏博特新材料股份有限公司 | A kind of construction method of the spray polyurea protection system for concrete base layer surface |
| CN112412091A (en) * | 2020-11-13 | 2021-02-26 | 上海宝冶集团有限公司 | Repair method of bare concrete of load-bearing structure |
| 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 |
| CN113402933A (en) * | 2021-07-05 | 2021-09-17 | 陕西宝塔山创新科技有限公司 | Bare concrete protective agent and construction method thereof |
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