CN101985847A - Construction method for preventing external wall thermal insulation layer from cracking and elastic composite anti-cracking fluorocarbon coating - Google Patents
Construction method for preventing external wall thermal insulation layer from cracking and elastic composite anti-cracking fluorocarbon coating Download PDFInfo
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- 238000009413 insulation Methods 0.000 title claims abstract description 32
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- 239000002131 composite material Substances 0.000 title claims abstract description 16
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- 239000002002 slurry Substances 0.000 claims abstract description 41
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- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 16
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Abstract
The invention discloses a construction method for preventing an external wall thermal insulation layer from cracking, and the construction process steps are as follows: carrying out inspection and treatment on a basal plane, and then bonding a thermal insulation plate; scraping lightweight protective slurry on the basal plane; scribing on the well scraped lightweight protective slurry for dividing regions on the surface; laying alkali-proof glass fiber mesh fabric, and scraping a lightweight high-elasticity anti-cracking waterproof putty; scraping a polishing cover surface putty layer, and carrying out polishing and maintenance on the well scraped polishing cover surface putty layer; sequentially spraying three coatings which are a flexible fluorocarbon base coat, a flexible fluorocarbon middle coat and a flexible fluorocarbon top coat; carrying out grid division, and coloring by taking each grid as unit; and repairing and clearing. The invention further discloses an elastic composite anti-cracking fluorocarbon coating which consists of the thermal insulation layer, an elastic composite anti-cracking layer and an elastic fluorocarbon paint facing layer. By adopting the construction method, the problems of cracking, hollowing and peeling of the existing external wall thermal insulation layer can be solved.
Description
Technical field
The invention belongs to technical field of building construction, be specifically related to a kind of job practices that prevents the insulating layer of external wall cracking, the invention still further relates to the elastic composite cracking resistance fluororine-carbon coating that uses in this job practices.
Background technology
At present, dragons and fishes jumbled together in each regional exterior-wall heat insulation market from south to the north, very different, external wall insulating layer all occur in varying degrees cracking, hollowing, phenomenon such as peel off, the external thermal insulation dehiscence severe in the exterior wall common quality defect especially wherein, crack prevention and crack resistance is one of the most key technology of whole outer heat preservation system, because exterior wall is in case produce cracking, not only heat insulation function reduction, give the Construction Party simultaneously, living and bringing menticide, city image is affected.
External wall outer insulation is to be composited by multiple materials such as body of wall, interfacial agents, insulation layer, finish coats, and is in for a long time in the outdoor severe natural environment, and factors such as high temperature, cold, sleet humidity, blast constitute a threat to the outer heat preservation system quality safety.Scientific research and engineering practice showed already, the existence in crack is the intrinsic physical characteristic of material itself, out-wall crack mainly is load crack and deformation crack, and deformation crack accounts for 80% of out-wall crack, the thermal field time changing is the principal element of deformation crack and the most complicated and be difficult to avoid, and the thermal technology of science, mechanics design, qualified material, rigorous execution control can guarantee workmanship.
External wall insulating layer adopts protection mortar to be mostly cement based at overcoat at present, and than great, coefficient of thermal conductivity is high, coefficient of heat accumulation is big, because two kinds of materials in environment temperature after the match, expand with heat and contract with cold, the restraint stress of the not the same generation of moisture expansion and drying shrinkage speed causes the displacement deformation cracking (the coefficient of thermal conductivity difference of protection mortar and warming plate 1 makes gradient of temperature speed differ nearly 30 times, produce restraint stress and make it distortion, cause cracking).
Summary of the invention
The purpose of this invention is to provide a kind of job practices that prevents insulating layer of external wall cracking, solved the problem that existing insulating layer of external wall cracking, hollowing occur, peels off.
Another object of the present invention provides the elastic composite cracking resistance fluororine-carbon coating that uses in the above-mentioned job practices.
The technical solution adopted in the present invention is, a kind of job practices that prevents the insulating layer of external wall cracking is implemented according to following working procedure:
Operation 2 is criticized on basal plane and is scraped lightweight protection slurry;
Operation 4 is laid one deck alkali resistant glass fibre open weave cloth on batch lightweight of scraping protection slurry, criticize on alkali resistant glass fibre open weave cloth then and scrape the high-elastic anti-cracking waterproof putty layer of lightweight 2-3 time;
Operation 5 is criticized on batch high-elastic anti-cracking waterproof putty layer of lightweight of scraping and is scraped polishing cover putty layer, and batch polishing cover putty layer of scraping is polished and maintenance;
Characteristics of the present invention also are,
Lightweight protection slurry wherein is grouped into by following one-tenth by mass percentage:
Cement is 15%～30%, and glass bead is 60%～75%, and additive is 3%～7%, and rubber powder is 3%～7%, and its mass percent sum is 100%.
Wherein additive is grouped into by following one-tenth by mass percentage:
Calcium carbonate is 94%～96%, and the medium viscosity cellulose ether is 0.7%～1.0%, and the PP fiber is 2%～4%, and the TH-928 polycarboxylate high performance water-reducing agent is 0.8%～1.2%, and its mass percent sum is 100%.
The high-elastic anti-cracking waterproof putty layer of lightweight wherein is that component A and B component two parts of 35:10～35:20 are formed by mass ratio:
Wherein component A is grouped into by following one-tenth according to mass percent: glass bead 16%～22%, and calcite powder 14%～18%, quartz powder 15%～18%, black cement 37%～42%, quartz sand 5%～10%, the mass percent sum of these 5 kinds of compositions is 100%;
B component wherein is prepared from according to following steps: is that the 1:1.4-1:2 mixing obtains mixed solution with emulsion and water according to volume ratio, take by weighing the sliding agent of 0.5-0.7g/L, the black fibre of 0.2-0.3g/L, the anticorrisive agent of 0.02-0.06g/L and the defoamer of 0.02-0.06g/L according to the quality volumetric concentration, be dissolved in above-mentioned mixed solution, obtain B component.
Flexible fluorine carbon priming paint (6) is that component A and B component two parts of 100:25～100:30 are formed by mass ratio in wherein the elastic fluorocarbon lacquer finish coat,
Component A is that the epoxy resin of 2.3-4g/L and defoamer that the quality volumetric concentration is 0.003-0.025g/L are dissolved in the technical pure n-butanol and form by the quality volumetric concentration,
B component is that the epoxy curing agent of 0.8-1.2g/L is dissolved in the technical pure n-butanol and forms by the quality volumetric concentration;
In the described elastic fluorocarbon lacquer finish coat in the flexible fluorine carbon lacquer (7) be that component A and B component two parts of 100:15～100:20 are formed by mass ratio,
Component A is that the anti-settling agent of filler, the 0.03-0.14g/L of pigment, the 2-5g/L of deicer, the 0.6-2g/L of defoamer, the 0.03-0.7g/L of wetting dispersing agent, the 0.006-0.07g/L of polyurethane resin, the 0.02-0.1/L of 2-7g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the curable urethane resin agent of 2.3-42g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration;
Flexible fluorine carbon finishing paint (8) is that component A and B component two parts of 100:25～100:30 are formed by mass ratio in the described elastic fluorocarbon lacquer finish coat,
Component A is that the leveling auxiliary agent of delustering agent, the 0.01-0.1g/L of anti-settling agent, the 0.05-0.3g/L of filler, the 0.03-0.1g/L of pigment, the 0.3-1g/L of defoamer, the 0.8-2.2g/L of wetting dispersing agent, the 0.005-0.05g/L of fluorocarbon resin, the 0.01-0.1g/L of 3-6g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the elasticity curing compound of 1.5-4g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration.
Another technical scheme of the present invention is, a kind of elastic composite cracking resistance fluororine-carbon coating is made up of insulation layer, elastic composite crack-resistant layer and elastic fluorocarbon lacquer finish coat,
Described insulation layer is a warming plate;
Described elastic composite crack-resistant layer protects pulp layer, alkali resistant glass fibre open weave cloth, the high-elastic anti-cracking waterproof putty layer of lightweight and polishing cover putty layer by lightweight to be formed,
Described elastic fluorocarbon lacquer finish coat is made up of lacquer and flexible fluorine carbon finishing paint in flexible fluorine carbon priming paint, the flexible fluorine carbon.
Lightweight protection slurry wherein is grouped into by following one-tenth by mass percentage:
Cement is 15%～30%, and glass bead is 60%～75%, and additive is 3%～7%, and rubber powder is 3%～7%, and its mass percent sum is 100%.
Wherein additive is grouped into by following one-tenth by mass percentage:
Calcium carbonate is 94%～96%, and the medium viscosity cellulose ether is 0.7%～1.0%, and the PP fiber is 2%～4%, and the TH-928 polycarboxylate high performance water-reducing agent is 0.8%～1.2%, and its mass percent sum is 100%.
The high-elastic anti-cracking waterproof putty layer of lightweight wherein is that component A and B component two parts of 35:10～20 are formed by mass ratio:
Wherein component A is grouped into by following one-tenth according to mass percent: glass bead 16%～22%, and calcite powder 14%～18%, quartz powder 15%～18%, black cement 37%～42%, quartz sand 5%～10%, the mass percent sum of these 5 kinds of compositions is 100%;
B component wherein is prepared from according to following steps: is that the 1:1.4-1:2 mixing obtains mixed solution with emulsion and water according to volume ratio, take by weighing the sliding agent of 0.5-0.7g/L according to the quality volumetric concentration, 0.2-0.3g/L black fibre, 0.02-0.06g/L anticorrisive agent, 0.02-0.06g/L defoamer, be dissolved in above-mentioned mixed solution, obtain B component.
Flexible fluorine carbon priming paint is that component A and B component two parts of 100:25～100:30 are formed by mass ratio in wherein the elastic fluorocarbon lacquer finish coat,
Component A is that the epoxy resin of 2.3-4g/L and defoamer that the quality volumetric concentration is 0.003-0.025g/L are dissolved in the technical pure n-butanol and form by the quality volumetric concentration,
B component is that the epoxy curing agent of 0.8-1.2g/L is dissolved in the technical pure n-butanol and forms by the quality volumetric concentration;
In the described elastic fluorocarbon lacquer finish coat in the flexible fluorine carbon lacquer be that component A and B component two parts of 100:15～100:20 are formed by mass ratio,
Component A is that the anti-settling agent of filler, the 0.03-0.14g/L of pigment, the 2-5g/L of deicer, the 0.6-2g/L of defoamer, the 0.03-0.7g/L of wetting dispersing agent, the 0.006-0.07g/L of polyurethane resin, the 0.02-0.1/L of 2-7g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the curable urethane resin agent of 2.3-42g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration;
Flexible fluorine carbon finishing paint is that component A and B component two parts of 100:25～100:30 are formed by mass ratio in the described elastic fluorocarbon lacquer finish coat,
Component A is that the leveling auxiliary agent of delustering agent, the 0.01-0.1g/L of anti-settling agent, the 0.05-0.3g/L of filler, the 0.03-0.1g/L of pigment, the 0.3-1g/L of defoamer, the 0.8-2.2g/L of wetting dispersing agent, the 0.005-0.05g/L of fluorocarbon resin, the 0.01-0.1g/L of 3-6g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the elasticity curing compound of 1.5-4g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration.
The invention has the beneficial effects as follows that by using gradual change successively, flexible release, reducing different materials breathing speed, greasy layer of employing high resiliency and high-elongation fluorine carbon lacquer are combined into the strong mechanical performance coating, reach better tensile strength, dynamic cracking resistance and suppleness.
Description of drawings
Fig. 1 is the hierarchical diagram of job practices floating coat of the present invention.
Among the figure, 1. warming plate, 2. lightweight protection slurry, 3. alkali resistant glass fibre open weave cloth, the 4. high-elastic anti-cracking waterproof putty layer of lightweight, 5. polishing cover putty layer, 6. flexible fluorine carbon priming paint coats with lacquer in the 7. flexible fluorine carbon, 8. flexible fluorine carbon finishing paint.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
The present invention prevents the job practices of insulating layer of external wall cracking, implements according to following working procedure:
The elastic composite cracking resistance fluororine-carbon coating that uses in the job practices as shown in Figure 1, is made up of insulation layer, elastic composite crack-resistant layer and elastic fluorocarbon lacquer finish coat.
Insulation layer adopts warming plate 1; The elastic composite crack-resistant layer is made up of lightweight protection slurry 2, alkali resistant glass fibre open weave cloth 3, the high-elastic anti-cracking waterproof putty layer 4 of lightweight and polishing cover putty layer 5; The elastic fluorocarbon finish coat is made up of lacquer 7 and flexible fluorine carbon finishing paint 8 in flexible fluorine carbon priming paint 6, the flexible fluorine carbon.
Mode of occupation according to different the invention provides following examples:
Coating of the present invention is laid according to following operation,
Wherein lightweight protection slurry 2 is grouped into by following one-tenth by mass percentage:
Cement is 20%, and glass bead is 70%, and additive is 5%, and rubber powder is 5%, and its mass percent sum is 100%,
Wherein additive is grouped into by following one-tenth by mass percentage:
Calcium carbonate is 94%, and the medium viscosity cellulose ether is 1.0%, and the PP fiber is 4%, and the TH-928 polycarboxylate high performance water-reducing agent is 1.0%, and its mass percent sum is 100%;
Wherein the high-elastic anti-cracking waterproof putty of lightweight is that component A and B component two parts of 35:10 are formed by mass ratio,
Wherein component A is grouped into by following one-tenth according to mass percent: glass bead 16%, and calcite powder 14%, quartz powder 18%, black cement 42%, quartz sand 10%, the mass percent sum of these 5 kinds of compositions is 100%;
B component wherein is prepared from according to following steps: is that the 1:1.4 mixing obtains mixed solution with emulsion and water according to volume ratio, take by weighing the sliding agent of 0.7g/L according to the quality volumetric concentration, 0.25g/L black fibre, 0.04g/L anticorrisive agent, 0.02g/L defoamer, be dissolved in above-mentioned mixed solution, obtain B component;
Flexible fluorine carbon priming paint 6 wherein is that component A and B component two parts of 100:25 are formed by mass ratio,
Component A is that the epoxy resin of 4g/L and defoamer that the quality volumetric concentration is 0.018g/L are dissolved in the technical pure n-butanol and form by the quality volumetric concentration,
B component is that the epoxy curing agent of 1.2g/L is dissolved in the technical pure n-butanol and forms by the quality volumetric concentration;
Component A is that the anti-settling agent of filler, the 0.14g/L of pigment, the 2g/L of deicer, the 1.2g/L of defoamer, the 0.5g/L of wetting dispersing agent, the 0.07g/L of polyurethane resin, the 0.05/L of 5g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the curable urethane resin agent of 2.3g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration;
Flexible fluorine carbon finishing paint 8 wherein is that component A and B component two parts of 100:25 are formed by mass ratio,
Component A is that the leveling auxiliary agent of delustering agent, the 0.07g/L of anti-settling agent, the 0.05g/L of filler, the 0.1g/L of pigment, the 1g/L of defoamer, the 1.2g/L of wetting dispersing agent, the 0.025g/L of fluorocarbon resin, the 0.01g/L of 6g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the elasticity curing compound of 4g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration; Operation 7 is carried out lattice at the coating surface of finishing spraying and is divided, and is to paint in the unit with each lattice then;
Coating of the present invention is laid according to following operation,
Wherein lightweight protection slurry 2 is grouped into by following one-tenth by mass percentage:
Cement is 30%, and glass bead is 60%, and additive is 3%, and rubber powder is 7%, and its mass percent sum is 100%,
Wherein additive is grouped into by following one-tenth by mass percentage:
Calcium carbonate is 96%, and the medium viscosity cellulose ether is 0.8%, and the PP fiber is 2%, and the TH-928 polycarboxylate high performance water-reducing agent is 1.2%, and its mass percent sum is 100%;
Wherein lightweight protection slurry 2 is that component A and B component two parts of 35:15 are formed by mass ratio,
Wherein component A is grouped into by following one-tenth according to mass percent: glass bead 22%, and calcite powder 18%, quartz powder 15%, black cement 37%, quartz sand 8%, the mass percent sum of these 5 kinds of compositions is 100%,
B component wherein is prepared from according to following steps: is that the 1:2 mixing obtains mixed solution with emulsion and water according to volume ratio, take by weighing the sliding agent of 0.6g/L according to the quality volumetric concentration, 0.2g/L black fibre, 0.06g/L anticorrisive agent, 0.04g/L defoamer, be dissolved in above-mentioned mixed solution, obtain B component;
Flexible fluorine carbon priming paint 6 wherein is that component A and B component two parts of 100:27 are formed by mass ratio,
Component A is that the epoxy resin of 2.3g/L and defoamer that the quality volumetric concentration is 0.025g/L are dissolved in the technical pure n-butanol and form by the quality volumetric concentration,
B component is that the epoxy curing agent of 1g/L is dissolved in the technical pure n-butanol and forms by the quality volumetric concentration;
Component A is that the anti-settling agent of filler, the 0.08g/L of pigment, the 3g/L of deicer, the 2g/L of defoamer, the 0.03g/L of wetting dispersing agent, the 0.03g/L of polyurethane resin, the 0.02/L of 7g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the curable urethane resin agent of 20g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration;
Flexible fluorine carbon finishing paint 8 is that component A and B component two parts of 100:27 are formed by mass ratio,
Component A is that the leveling auxiliary agent of delustering agent, the 0.1g/L of anti-settling agent, the 0.15g/L of filler, the 0.03g/L of pigment, the 0.5g/L of defoamer, the 0.8g/L of wetting dispersing agent, the 0.005g/L of fluorocarbon resin, the 0.05g/L of 3g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the elasticity curing compound of 3g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration; Operation 7 is carried out lattice at the coating surface of finishing spraying and is divided, and is to paint in the unit with each lattice then;
Coating of the present invention is laid according to following operation,
Wherein lightweight protection slurry 2 is grouped into by following one-tenth by mass percentage:
Cement is 15%, and bead is 75%, and additive is 7%, and rubber powder is 3%, and its mass percent sum is 100%,
Wherein additive is grouped into by following one-tenth by mass percentage:
Filler is 95.5%, and the medium viscosity cellulose ether is 0.7%, and the PP fiber is 3%, and the TH-928 polycarboxylate high performance water-reducing agent is 0.8%, and its mass percent sum is 100%;
Wherein lightweight protection slurry 2 is that component A and B component two parts of 35:20 are formed by mass ratio,
Wherein component A is grouped into by following one-tenth according to mass percent: glass bead 20%, and calcite powder 17%, quartz powder 17%, black cement 41%, quartz sand 5%, the mass percent sum of these 5 kinds of compositions is 100%,
B component wherein is prepared from according to following steps: is that the 1:1.7 mixing obtains mixed solution with emulsion and water according to volume ratio, take by weighing the sliding agent of 0.5g/L according to the quality volumetric concentration, 0.3g/L black fibre, 0.02g/L anticorrisive agent, 0.06g/L defoamer, be dissolved in above-mentioned mixed solution, obtain B component;
Flexible fluorine carbon priming paint 6 is that component A and B component two parts of 100:30 are formed by mass ratio,
Component A is that the epoxy resin of 3g/L and defoamer that the quality volumetric concentration is 0.003g/L are dissolved in the technical pure n-butanol and form by the quality volumetric concentration,
B component is that the epoxy curing agent of 0.8g/L is dissolved in the technical pure n-butanol and forms by the quality volumetric concentration,
Component A is that the anti-settling agent of filler, the 0.03g/L of pigment, the 5g/L of deicer, the 0.6g/L of defoamer, the 0.7g/L of wetting dispersing agent, the 0.006g/L of polyurethane resin, the 0.1/L of 2g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the curable urethane resin agent of 42g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration,
Flexible fluorine carbon finishing paint 8 is that component A and B component two parts of 100:30 are formed by mass ratio,
Component A is that the leveling auxiliary agent of delustering agent, the 0.01g/L of anti-settling agent, the 0.3g/L of filler, the 0.07g/L of pigment, the 0.3g/L of defoamer, the 2.2g/L of wetting dispersing agent, the 0.05g/L of fluorocarbon resin, the 0.1g/L of 5g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the elasticity curing compound of 1.5g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration; Operation 7 is carried out lattice at the coating surface of finishing spraying and is divided, and is to paint in the unit with each lattice then;
More than among 3 kinds of embodiment; wherein the cement in lightweight protection slurry 2 components is 425 black cements; glass bead is that Beijing Huaweijia Technologies Co., Ltd. produces; medium viscosity cellulose ether in the additive is produced by the wide development in science and technology in Shandong Co., Ltd; the PP fiber is produced by Beijing gold ancient cooking vessel Hunk development in science and technology Co., Ltd; the TH-928 polycarboxylate high performance water-reducing agent is produced by Shandong Taihe Water Treatment Co., Ltd., and rubber powder is the re-dispersible glue powder that Beijing gold ancient cooking vessel Hunk development in science and technology Co., Ltd produces.
Wherein sliding agent is the aqueous solution of the hydroxypropyl methylcellulose (HPMC) produced of Beijing excellent bright special commerce and trade Co., Ltd in the B component of the high-elastic anti-cracking waterproof putty layer 4 of lightweight, black fibre is the CB204 type 1000-1400 micron lignocellulosic that Beijing diligent sharp permanent lignocellulosic technology Co., Ltd produces, the CI 15HS type anticorrisive agent that anticorrisive agent is produced for Clariant company, emulsion is the TRC-FX type emulsion that Sichuan sunrise company produces, the C 113 type defoamers that defoamer is produced for Clariant company.
Epoxy resin is the epoxy resin that Sanmu Group Co., Ltd., Jiangsu produces among the component A of wherein flexible fluorine carbon priming paint 6, and defoamer is the defoamer of German Bi Ke chemical production.
Epoxy curing agent is the epoxy curing agent that Junjiang Science and Technology Co Ltd, Shanghai or grand celebration celebrating Shandong Fine Chemical Co., Ltd produce in the B component, and solvent is the technical pure n-butanol.
Polyurethane resin in the wherein flexible fluorine carbon among the component A of lacquer 7 is the polyurethane resin that moral female Industrial Co., Ltd. in Shanghai produces, wetting dispersing agent is the wetting dispersing agent of German Bi Ke chemical production, defoamer is the defoamer of German Bi Ke chemical production, deicer is the deicer that Beyer Co., Ltd produces, pigment is the titanium dioxide that E.I.Du Pont Company produces, filler is the French chalk of being produced by Beijing Wan Zekang French chalk Products Co., Ltd or Shanxi Nanfeng Chemical Group Co., Ltd., anti-settling agent is the anti-settling agent that goldschmidt chemical corporation is produced, and solvent is technical pure 1-Methoxy-2-propyl acetate or butyl acetate.
Curable urethane resin agent in the B component is produced by the female Industrial Co., Ltd. of Shanghai moral, and solvent is the technical pure butyl acetate.
Fluorocarbon resin is produced by the rich new material of three love of sky in Changshu Co., Ltd among the component A of wherein flexible fluorine carbon finishing paint 8, wetting dispersing agent, defoamer and leveling auxiliary agent are by German Bi Ke chemical production, pigment is the titanium dioxide that E.I.Du Pont Company produces, the French chalk that Beijing Wan Zekang French chalk Products Co., Ltd or Shanxi Nanfeng Chemical Group Co., Ltd. produce, anti-settling agent is by goldschmidt chemical corporation production, delustering agent is that W. R. Grace ﹠ Co produces, and solvent is technical pure 1-Methoxy-2-propyl acetate or butyl acetate.
The elasticity curing compound is that Asahi Kasei Corporation produces in the B component, and solvent is the technical pure butyl acetate.
The high-elastic anti-cracking waterproof putty layer 4 of lightweight is that the inorganic material glass bead by the different-grain diameter grating is an aggregate; the light flexible anti-crack mastic that composite elastic emulsion of various acrylic acid and various auxiliary agents etc. are formed, product is carried out JG/T 157-2009 " external wall putty putty " standard elastic putty standard.
Job practices of the present invention is significantly adjusted improvement with regard to the breathing speed of various materials targetedly, and the overcoat of whole heat-insulation system and finish coat all adopt the inorganic mineral light material, has dwindled various different materials breathing speed, reduces mutual restrained deformation.
At first, the lightweight that we use on the warming plate 1 surface slurry coefficient of thermal conductivity of wiping one's face is 0.07w (mk), warming plate 1 coefficient of thermal conductivity is 0.032w (mk), gradient of temperature speed differ 2 times, reduce the restraint stress hidden danger of quality, simultaneously owing to itself have low heat conduction speciality and not only compensate the heat-insulation and heat-preservation function and can also give warming plate 1 metastable environment temperature field, reduction warming plate 1 the shrinkage strain risk;
Secondly, the lightweight slurry of wiping one's face reduces shear stress that own wt causes because of load the heat-insulation system destruction to insulation layer;
At last, the wipe one's face fireproof performance excellence of slurry of lightweight is not less than A2 level requirement among the GB 8624-2006.
Adopt the inorganic light weight inorganic aggregates producing when design not only considers to meet the breathing rate requirement as overcoat and facing putty layer, because the fireproof performance of the excellence of inorganic, for whole insulation layer provides good fireproof performance.
Light inorganic heat preserving slurry series of products characteristic:
A, safety; Combustibility is the A1 level, the fire-protection rating height
B, energy-conservation; Excellent insulating, heat-proof quality
C, environmental protection; Do not produce any pernicious gas under the hot conditions
D, durable: good weatherability, ageing resistance; With the same life-span of building
E, saving of labor: but be lower than the thick disposal molding of plastering of 30mm.
The lightweight type slurry thermal insulation low thermal conductivity of wiping one's face, seepage control and crack resistance, the caking property height, water absorption rate is low, reduce heat-insulation system load with its light weight again when characteristics such as fireproof performance is good, and it is convenient to construct not only compensate the heat-insulation and heat-preservation function of heat-insulation system and reduce self shear stress hidden danger heat-insulation system.
The lightweight slurry of wiping one's face is that inorganic material glass bead by the different-grain diameter grating is an aggregate, adds doing that rubber powder and various auxiliary agents etc. form and mixes slurry.
The lightweight size performance index of wiping one's face is as shown in table 1, has that self is light, and self does not ftracture, low thermal conductivity, and seepage control and crack resistance, the caking property height, products characteristics such as water absorption rate is low, and have fireproof performance.
Table 1
Concern according to stress-strain, the tension of putty layer and rupture strength can not also can't be designed to retrain fully the material of the poly-stress of base-layer contraction deformation, so satisfying under the strength character, so flexible adjusting by each layer putty, discharge and absorb the distortion of basic unit's body of wall, make body of wall, warming plate 1, lightweight protect netted the dredge release stress of the poly-stress of 2 in slurry by different length fiber bundle in the tender son of height and grid cloth, flexibility function successively discharges, decay successively, splits hidden danger thereby the poly-stress of decay plays anti-, the relieving of coupling hardness with softness.
Products characteristics: light weight density is low, and adhesion stress is strong, have excellent effect of prestressed (dynamic cracking resistance index: 〉=0.3mm).
Table 2
The performance indications of alkali resistant glass fibre open weave cloth 3 are as shown in table 2, cooperate the laying of alkali resistant glass fibre open weave cloth 3, and 12.7MPa tensile strength that coating of the present invention has and 60KG/M tearing strength are enough controlled the cracking that the poly-stress of basic unit causes and the generation of displacement; Has the high-intensity while, and excellent flexibility and extensibility have been kept, even guarantee basic unit cracking appears down, base material can also be held on to (adhesion strength 1. 2MPa), discharge basic unit's stress hidden danger by high-flexibility own and elongation at rupture function, make surface excellent beautiful as new (dynamic cracking resistance 0.4mm, suppleness is 3); The elastic fluorocarbon lacquer finish coat that the surface layer of coating adopts, make outdoor durable can keep 20 years color gloss such as new, corrosion resistance is strong, stain resistance good.
Claims (10)
1. a job practices that prevents the insulating layer of external wall cracking is characterized in that, implements according to following working procedure:
Operation 1 is checked and is handled basal plane, afterwards bonding and thermal insulation plate (1) on basal plane;
Operation 2 is criticized on basal plane and is scraped lightweight protection slurry (2);
Operation 3 is protected slurry (2) in the mode of snap the line in batch lightweight of scraping and is gone up setting-out, the surface is divided into the square region of some homalographics;
Operation 4 goes up at the lightweight protection slurry of batch scraping (2) and to lay one deck alkali resistant glass fibre open weave cloth (3), goes up at alkali resistant glass fibre open weave cloth (3) then and batch scrapes the high-elastic anti-cracking waterproof putty layer of lightweight (4) 2-3 time; Operation 5 goes up in the high-elastic anti-cracking waterproof putty layer of lightweight (4) of batch scraping and batch to scrape polishing cover putty layer (5), and batch polishing cover putty layer (5) of scraping is polished and maintenance;
Operation 6 sprays lacquer (7) and (8) three layers of coating of flexible fluorine carbon finishing paint in flexible fluorine carbon priming paint (6), the flexible fluorine carbon successively on the polishing cover putty layer (5) that the polishing maintenance is finished; Operation 7 is carried out lattice at the coating surface of finishing spraying and is divided, and is to paint in the unit with each lattice then;
Operation 8 is repaired, is cleared up.
2. job practices according to claim 1 is characterized in that, described lightweight protection slurry (2) is grouped into by following one-tenth by mass percentage:
Cement is 15%～30%, and glass bead is 60%～75%, and additive is 3%～7%, and rubber powder is 3%～7%, and its mass percent sum is 100%.
3. job practices according to claim 2 is characterized in that, described additive is grouped into by following one-tenth by mass percentage:
Calcium carbonate is 94%～96%, and the medium viscosity cellulose ether is 0.7%～1.0%, and the PP fiber is 2%～4%, and the TH-928 polycarboxylate high performance water-reducing agent is 0.8%～1.2%, and its mass percent sum is 100%.
4. job practices according to claim 1 is characterized in that, the high-elastic anti-cracking waterproof putty layer of described lightweight (4) is that component A and B component two parts of 35:10～35:20 are formed by mass ratio:
Wherein component A is grouped into by following one-tenth according to mass percent: glass bead 16%～22%, and calcite powder 14%～18%, quartz powder 15%～18%, black cement 37%～42%, quartz sand 5%～10%, the mass percent sum of these 5 kinds of compositions is 100%;
B component wherein is prepared from according to following steps: is that the 1:1.4-1:2 mixing obtains mixed solution with emulsion and water according to volume ratio, take by weighing the sliding agent of 0.5-0.7g/L, the black fibre of 0.2-0.3g/L, the anticorrisive agent of 0.02-0.06g/L and the defoamer of 0.02-0.06g/L according to the quality volumetric concentration, be dissolved in above-mentioned mixed solution, obtain B component.
5. job practices according to claim 1 is characterized in that, flexible fluorine carbon priming paint (6) is that component A and B component two parts of 100:25～100:30 are formed by mass ratio in the described elastic fluorocarbon lacquer finish coat,
Component A is that the epoxy resin of 2.3-4g/L and defoamer that the quality volumetric concentration is 0.003-0.025g/L are dissolved in the technical pure n-butanol and form by the quality volumetric concentration,
B component is that the epoxy curing agent of 0.8-1.2g/L is dissolved in the technical pure n-butanol and forms by the quality volumetric concentration;
In the described elastic fluorocarbon lacquer finish coat in the flexible fluorine carbon lacquer (7) be that component A and B component two parts of 100:15～100:20 are formed by mass ratio,
Component A is that the anti-settling agent of filler, the 0.03-0.14g/L of pigment, the 2-5g/L of deicer, the 0.6-2g/L of defoamer, the 0.03-0.7g/L of wetting dispersing agent, the 0.006-0.07g/L of polyurethane resin, the 0.02-0.1/L of 2-7g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the curable urethane resin agent of 2.3-42g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration;
Flexible fluorine carbon finishing paint (8) is that component A and B component two parts of 100:25～100:30 are formed by mass ratio in the described elastic fluorocarbon lacquer finish coat,
Component A is that the leveling auxiliary agent of delustering agent, the 0.01-0.1g/L of anti-settling agent, the 0.05-0.3g/L of filler, the 0.03-0.1g/L of pigment, the 0.3-1g/L of defoamer, the 0.8-2.2g/L of wetting dispersing agent, the 0.005-0.05g/L of fluorocarbon resin, the 0.01-0.1g/L of 3-6g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the elasticity curing compound of 1.5-4g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration.
6. an elastic composite cracking resistance fluororine-carbon coating is characterized in that, form by insulation layer, elastic composite crack-resistant layer and elastic fluorocarbon lacquer finish coat,
Described insulation layer is warming plate (1);
Described elastic composite crack-resistant layer protects slurry (2) layer, alkali resistant glass fibre open weave cloth (3), the high-elastic anti-cracking waterproof putty layer of lightweight (4) and polishing cover putty layer (5) by lightweight to be formed,
Described elastic fluorocarbon lacquer finish coat is made up of lacquer (7) and flexible fluorine carbon finishing paint (8) in flexible fluorine carbon priming paint (6), the flexible fluorine carbon.
7. according to the described coating of claim 6, it is characterized in that described lightweight protection slurry (2) is grouped into by following one-tenth by mass percentage:
Cement is 15%～30%, and glass bead is 60%～75%, and additive is 3%～7%, and rubber powder is 3%～7%, and its mass percent sum is 100%.
8. coating according to claim 7 is characterized in that, described additive is grouped into by following one-tenth by mass percentage:
Calcium carbonate is 94%～96%, and the medium viscosity cellulose ether is 0.7%～1.0%, and the PP fiber is 2%～4%, and the TH-928 polycarboxylate high performance water-reducing agent is 0.8%～1.2%, and its mass percent sum is 100%.
9. coating according to claim 7 is characterized in that, the high-elastic anti-cracking waterproof putty layer of described lightweight (4) is that component A and B component two parts of 35:10～20 are formed by mass ratio:
Wherein component A is grouped into by following one-tenth according to mass percent: glass bead 16%～22%, and calcite powder 14%～18%, quartz powder 15%～18%, black cement 37%～42%, quartz sand 5%～10%, the mass percent sum of these 5 kinds of compositions is 100%;
B component wherein is prepared from according to following steps: is that the 1:1.4-1:2 mixing obtains mixed solution with emulsion and water according to volume ratio, take by weighing the sliding agent of 0.5-0.7g/L according to the quality volumetric concentration, 0.2-0.3g/L black fibre, 0.02-0.06g/L anticorrisive agent, 0.02-0.06g/L defoamer, be dissolved in above-mentioned mixed solution, obtain B component.
10. coating according to claim 7 is characterized in that, flexible fluorine carbon priming paint (6) is that component A and B component two parts of 100:25～100:30 are formed by mass ratio in the described elastic fluorocarbon lacquer finish coat,
Component A is that the epoxy resin of 2.3-4g/L and defoamer that the quality volumetric concentration is 0.003-0.025g/L are dissolved in the technical pure n-butanol and form by the quality volumetric concentration,
B component is that the epoxy curing agent of 0.8-1.2g/L is dissolved in the technical pure n-butanol and forms by the quality volumetric concentration;
In the described elastic fluorocarbon lacquer finish coat in the flexible fluorine carbon lacquer (7) be that component A and B component two parts of 100:15～100:20 are formed by mass ratio,
Component A is that the anti-settling agent of filler, the 0.03-0.14g/L of pigment, the 2-5g/L of deicer, the 0.6-2g/L of defoamer, the 0.03-0.7g/L of wetting dispersing agent, the 0.006-0.07g/L of polyurethane resin, the 0.02-0.1/L of 2-7g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the curable urethane resin agent of 2.3-42g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration;
Flexible fluorine carbon finishing paint (8) is that component A and B component two parts of 100:25～100:30 are formed by mass ratio in the described elastic fluorocarbon lacquer finish coat,
Component A is that the leveling auxiliary agent of delustering agent, the 0.01-0.1g/L of anti-settling agent, the 0.05-0.3g/L of filler, the 0.03-0.1g/L of pigment, the 0.3-1g/L of defoamer, the 0.8-2.2g/L of wetting dispersing agent, the 0.005-0.05g/L of fluorocarbon resin, the 0.01-0.1g/L of 3-6g/L is dissolved in the technical pure 1-Methoxy-2-propyl acetate or butyl acetate is formed by the quality volumetric concentration;
B component is that the elasticity curing compound of 1.5-4g/L is dissolved in the technical pure butyl acetate and forms by the quality volumetric concentration.
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| CN112196203A (en) * | 2020-08-31 | 2021-01-08 | 中铁电气化局集团北京建筑工程有限公司 | Cross-line type overhead waiting room outer wall decoration construction process |
| CN115217228A (en) * | 2022-08-22 | 2022-10-21 | 江苏尼高科技有限公司 | Reduce heat preservation structure of outer wall external insulation system thickness |
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