CN102557531A - Dry-mixed surface mortar for external insulation of building exterior wall and preparation method thereof - Google Patents
Dry-mixed surface mortar for external insulation of building exterior wall and preparation method thereof Download PDFInfo
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- CN102557531A CN102557531A CN2010105841575A CN201010584157A CN102557531A CN 102557531 A CN102557531 A CN 102557531A CN 2010105841575 A CN2010105841575 A CN 2010105841575A CN 201010584157 A CN201010584157 A CN 201010584157A CN 102557531 A CN102557531 A CN 102557531A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention belongs to dry-mixed surface mortar for external insulation of building exterior wall and a preparation method thereof, characterizing in that the method comprises the following steps: accurately and proportionally metering the following raw materials: 25-35 parts of cement, 5-30 parts of coal ash, 50-80 parts of sand, 0.15-0.30 parts of cellulose ether, 0.20-0.40 parts of wood fiber, 0.20-0.30 parts of water-repellent agent, 3.00-3.50 parts of redispersible glue powder and 0.02-0.05 parts of starch ether, sequentially adding the above raw materials into mixing equipment, stirring uniformly, and packing in bulk or in bags to obtain the finished products. During usage, the dry-mixed mortar can be used for building construction after mixing with water at a weight ratio of 100:(19-22) and stirring. Compared with the prior art, the dry-mixed surface mortar disclosed by the invention has the following beneficial effects: the product has high strength, good flexibility and high crack resistance, and can generate good adhesive performance with various heat-insulating boards; the waterproof performance is excellent, the mortar layer has good breathing performance, and the product is air permeable but has no water seepage.
Description
Technical field
The invention belongs to the material of construction adhesive area, relate in particular to outer heat insulation dry-mixing plastering mortar of a kind of external wall and preparation method thereof.
Background technology
At present, building exterior wall heat preserving obtains unprecedented development as energy-conservation effective measure.External Thermal Insulation System sticks with glue agent and belongs to the extraordinary mortar in the dry-mixed mortar; Require that its bonding strength is high, splitting resistance is good, the flawless of wiping one's face, no hollowing come off, water resistance is good; Along with the popularization of External Thermal Insulation System, the external wall outer insulation dry-mixed mortar that performance is more excellent has very big market potential.The shortcoming of tradition external wall outer insulation dry-mixed mortar is: because traditional external wall outer insulation dry-mixed mortar generally all is that system is mixed in the working-yard, measure inaccurately, stir inhomogeneously, cause the wasting of resources and environmental pollution unavoidably; Finishing mucilage belongs to the extraordinary mortar in the dry-mixed mortar, when mortar impervious poor, shrinking percentage is big, when water resistance is bad, be wall crazing, flake, peel off, the weak link of construction quality problem generation such as seepage.
The staple of external wall outer insulation dry-mixed mortar-tackiness agent of the prior art is cement 350 weight parts, dicalcium powder 50 weight parts, sand 580 weight parts, re-dispersible glue powder 18-25 weight part, hydroxypropyl methyl cellulose ether 2 weight parts.Shortcoming is that cost is high, and application property is bad, and product performance are poor.
Summary of the invention
The object of the invention provides outer heat insulation dry-mixing plastering mortar of a kind of external wall and preparation method thereof; Be used for various high, medium and low layer External Thermal Insulation System; Doing protection on the warming plate surface wipes one's face; Require easy construction, splitting resistance is good, the flawless of wiping one's face, no hollowing come off, water resistance is good.
For solving the problems of the technologies described above, technical scheme of the present invention is:
The outer heat insulation dry-mixing plastering mortar of a kind of external wall is characterized in that, is mainly processed by the following raw materials in parts by weight ratio:
25～35 parts of cement;
5～30 parts in flyash;
50～80 parts of sands;
0.15～0.30 part of ether of cellulose;
0.20～0.40 part of wood fibre;
0.20～0.30 part of hydrophober;
3.00～3.50 parts of re-dispersible glue powders;
0.02～0.05 part of starch ethers;
Said cement is the ordinary Portland cement more than 42.5 grades.
Said flyash is selected for use and is met seconds index in the GB/T1596-2005 standard.
Said sand is the river sand of granularity continuous grading in 0.15～0.3mm scope.
Said ether of cellulose is methyl hydroxyethylcellulose ether (MHEC) or methylhydroxypropylcellulose ether (MHPC) or both mixtures.
Said re-dispersible glue powder is vinyl acetate-ethylene or vinyl acetate between to for plastic-tertiary monocarboxylic acid ethene or both mixtures.
Said starch ethers is a hydroxypropylated starch ether.
Described wood fibre be from beech and fir wood through overpickling neutralization, pulverize then, bleach, roll, sub-sieve and obtain the product of different lengths and fineness.
Described hydrophober is the redispersible siloyl group hydrophober of high reactivity.
The preparation method of the outer heat insulation dry-mixing plastering mortar of above-mentioned a kind of external wall; It is characterized in that each component joins in the mixing equipment after accurately measuring in proportion successively; Stir; Be finished product after in bulk or packed, dry-mixed mortar and water are by 100 during use: (19～22) weight ratio adds water and stirs, and promptly can be used for building operation.
Compared with prior art, the invention has the beneficial effects as follows:
1) the present invention makes that the intensity of product is high owing to use the cement and the re-dispersible glue powder of HS grade, and flexible good, splitting resistance is high, can produce good adhesive property with all kinds of heat preservation plate materials;
2) owing to newly add starch ethers, wood fibre, starch ethers, wood fibre and ether of cellulose act synergistically, and can obviously improve the anti-property and the anti-slipping property of hanging down of mortar, have higher YV, excellent flexibility, and effect of prestressed is splendid;
3) obviously increase the denseness of mortar, improve mobile, freeze-thaw-, weathering resistance, good endurance can stand rainwash and freezing invasion and attack for a long time;
4) water-retentivity of increase mortar, workability is excellent, workability, good operability, the open hour are long;
5) strengthen the product degree of compactness, add the water resistance that hydrophober has improved product, screed has good respiratory, does not ventilatively seep water;
6) owing to add flyash, utilize industrial residue, reduced product cost;
7) environment-protecting asepsis, safe and reliable.
Embodiment
Below in conjunction with specific embodiment the present invention is described further:
Embodiment 1
The outer heat insulation dry-mixing plastering mortar of a kind of external wall is processed by the following raw materials in parts by weight ratio: 35 parts of cement; 10 parts in flyash; 55 parts of sands; 0.15 part of ether of cellulose; 0.25 part of wood fibre; 0.20 part of hydrophober; 2.5 parts of re-dispersible glue powders; 0.02 part of starch ethers.
Its preparation method is after each component is accurately measured in proportion, to join successively in the mixing equipment, and stirring is finished product, adds water during use and stirs 3-5 minute for 22 parts, stirs, and solid colour promptly can be used for building operation.
Stretching bonding strength test result is seen table 1.
Table 1
Embodiment 2
The outer heat insulation dry-mixing plastering mortar of a kind of external wall is processed by the following raw materials in parts by weight ratio: 25 parts of cement; 25 parts in flyash; 50 parts of sands; 0.2 part of ether of cellulose; 0.25 part of wood fibre; 0.20 part of hydrophober; 2.5 parts of re-dispersible glue powders; 0.05 part of starch ethers.
Its preparation method is after each component is accurately measured in proportion, to join successively in the mixing equipment, and stirring is finished product, adds water during use and stirs 3-5 minute for 19 parts, stirs, and solid colour promptly can be used for building operation.
Stretching bonding strength test result is seen table 2.
Table 2
Embodiment 3
The outer heat insulation dry-mixing plastering mortar of a kind of external wall is processed by the following raw materials in parts by weight ratio: 28 parts of cement; 10 parts in flyash; 62 parts of sands; 0.2 part of ether of cellulose; 3 parts of re-dispersible glue powders; 0.35 part of starch ethers; 0.3 part of wood fibre; 0.25 part of hydrophober.
Its preparation method is after each component is accurately measured in proportion, to join successively in the mixing equipment, and stirring is finished product, adds water during use and stirs 3-5 minute for 22 parts, stirs, and solid colour promptly can be used for building operation.
Stretching bonding strength test result is seen table 3.
Table 3
Embodiment 4
The outer heat insulation dry-mixing plastering mortar of a kind of external wall is processed by the following raw materials in parts by weight ratio: 30 parts of cement; 15 parts in flyash; 55 parts of sands; 0.18 part of ether of cellulose; 2.5 parts of re-dispersible glue powders; 0.035 part of starch ethers; 0.3 part of wood fibre; 0.23 part of hydrophober.
Its preparation method is after each component is accurately measured in proportion, to join successively in the mixing equipment, stirs, and is finished product, adds water during use and stirs 3-5 minute for 20 parts, stirs, and solid colour promptly can be used for building operation.
Stretching bonding strength test result is seen table 4.
Table 4
Embodiment 5
The outer heat insulation dry-mixing plastering mortar of a kind of external wall is processed by the following raw materials in parts by weight ratio: 32 parts of cement; 10 parts in flyash; 58 parts of sands; 0.15 part of ether of cellulose; 3 parts of re-dispersible glue powders; 0.05 part of starch ethers; 0.4 part of wood fibre; 0.3 part of hydrophober.
Its preparation method is after each component is accurately measured in proportion, to join successively in the mixing equipment, stirs, and is finished product, adds water during use and stirs 3-5 minute for 19 parts, stirs, and solid colour promptly can be used for building operation.
Stretching bonding strength test result is seen table 5.
Table 5
In the foregoing description, cement is the ordinary Portland cement more than 42.5 grades, and the final strength of finishing mucilage is played a major role.Flyash is selected for use and is met GB/T1596-2005 standard seconds index, plays to add and fills and the effect of reducing cost.Sand is the river sand of granularity continuous grading in 0.15～0.3mm scope, plays skeleton function.Ether of cellulose is methyl hydroxyethylcellulose ether (MHEC) or methylhydroxypropylcellulose ether (MHPC), plays thickening and water retention.The re-dispersible glue powder composition is vinyl acetate-ethylene and vinyl acetate between to for plastic-tertiary monocarboxylic acid ethene, mainly plays the organic adhesion agent effect.The starch ethers composition is a hydroxypropylated starch ether, mainly increases the denseness of mortar.Hydrophober is selected the redispersible siloyl group hydrophober of Yi Laitai company SEAL 80 high reactivities for use, mainly plays waterproof action.Wood fibre be from beech and fir wood through overpickling neutralization, pulverize then, bleach, roll, sub-sieve and obtain the product of different lengths and fineness, play enhancing, cracking resistance and resist the effect of hanging from above.
Claims (10)
1. the outer heat insulation dry-mixing plastering mortar of external wall is characterized in that, is mainly processed by the following raw materials in parts by weight ratio: 25～35 parts of cement;
5～30 parts in flyash;
50～80 parts of sands;
0.15～0.30 part of ether of cellulose;
0.20～0.40 part of wood fibre;
0.20～0.30 part of hydrophober;
3.00～3.50 parts of re-dispersible glue powders;
0.02～0.05 part of starch ethers;
2. the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1 is characterized in that said cement is the ordinary Portland cement more than 42.5 grades.
3. the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1 is characterized in that said flyash is selected for use and met seconds index in the GB/T1596-2005 standard.
4. the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1 is characterized in that said sand is the river sand of granularity continuous grading in 0.15～0.3mm scope.
5. the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1 is characterized in that said ether of cellulose is methyl hydroxyethylcellulose ether (MHEC) or methylhydroxypropylcellulose ether (MHPC) or both mixtures.
6. the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1 is characterized in that, said re-dispersible glue powder is for being vinyl acetate-ethylene or vinyl acetate between to for plastic-tertiary monocarboxylic acid ethene or both mixtures.
7. the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1 is characterized in that said starch ethers is a hydroxypropylated starch ether.
8. the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1; It is characterized in that; Described wood fibre be from beech and fir wood through overpickling neutralization, pulverize then, bleach, roll, sub-sieve and obtain the product of different lengths and fineness.
9. the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1 is characterized in that described hydrophober is the redispersible siloyl group hydrophober of high reactivity.
10. the preparation technology of the outer heat insulation dry-mixing plastering mortar of a kind of external wall according to claim 1; It is characterized in that each component joins in the mixing equipment after accurately measuring in proportion successively; Stir; Be finished product after in bulk or packed, dry-mixed mortar and water are by 100 during use: (19～22) weight ratio adds water and stirs, and promptly can be used for building operation.
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Cited By (31)
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| CN103086657A (en) * | 2013-01-08 | 2013-05-08 | 张立功 | Interface-enhanced anti-crack mortar and production technology thereof |
| CN104140230A (en) * | 2014-07-21 | 2014-11-12 | 俞权锋 | Aerated concrete dry-blended plastering mortar and preparing method thereof |
| CN104211341A (en) * | 2014-09-09 | 2014-12-17 | 广西横县恒丰建材有限责任公司 | Ready-mixed plastering mortar for interior wall and production method of ready-mixed plastering mortar |
| CN104230237A (en) * | 2014-09-09 | 2014-12-24 | 广西横县恒丰建材有限责任公司 | Ceramic tile ready-mixed mortar and production method thereof |
| CN104230239A (en) * | 2014-09-09 | 2014-12-24 | 广西横县恒丰建材有限责任公司 | Ground ready mixed mortar and production method thereof |
| CN104230238A (en) * | 2014-09-09 | 2014-12-24 | 广西横县恒丰建材有限责任公司 | Ready-mixed plastering mortar for exterior wall, and production method thereof |
| CN104386984A (en) * | 2014-11-10 | 2015-03-04 | 安唛杰节能建材科技（上海）有限公司 | High-durability waterproof anti-cracking mortar |
| CN104496344A (en) * | 2014-11-26 | 2015-04-08 | 芜湖中民科技建材有限公司 | Dry-mixed water-resistant mortar and its preparation method and use |
| CN104829173A (en) * | 2015-04-02 | 2015-08-12 | 广西怀爱保温建材有限公司 | Energy saving and heat insulation integrated dry mixed mortar |
| CN105461272A (en) * | 2015-11-21 | 2016-04-06 | 诸暨市兆山天峰干混砂浆有限公司 | Dry-mixed waterproof mortar and preparation technology thereof |
| CN105967576A (en) * | 2016-05-18 | 2016-09-28 | 常德市万福达环保节能建材有限公司 | Ternary copolymer latex powder waterproof mortar |
| CN106186897A (en) * | 2016-08-01 | 2016-12-07 | 太仓顺如成建筑材料有限公司 | A kind of building exterior wall heat preserving plate Crack-resistance Front Mortar |
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| CN106316275A (en) * | 2015-06-19 | 2017-01-11 | 郑州春晖建材科技有限公司 | Mechanically sprayed plastering mortar |
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| CN104140230A (en) * | 2014-07-21 | 2014-11-12 | 俞权锋 | Aerated concrete dry-blended plastering mortar and preparing method thereof |
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| CN106316274A (en) * | 2015-06-19 | 2017-01-11 | 郑州春晖建材科技有限公司 | Natural stone binder |
| CN106316272A (en) * | 2015-06-19 | 2017-01-11 | 郑州春晖建材科技有限公司 | Thin layer masonry mortar |
| CN106316276A (en) * | 2015-06-19 | 2017-01-11 | 郑州春晖建材科技有限公司 | Anti-crack plastering mortar for steel mesh frame expanded polyphenyl boards |
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| CN106316275A (en) * | 2015-06-19 | 2017-01-11 | 郑州春晖建材科技有限公司 | Mechanically sprayed plastering mortar |
| CN105461272A (en) * | 2015-11-21 | 2016-04-06 | 诸暨市兆山天峰干混砂浆有限公司 | Dry-mixed waterproof mortar and preparation technology thereof |
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Application publication date: 20120711 |