CN104961391A - Crack-resistant heat insulation mortar for exterior wall, and preparation method thereof - Google Patents
Crack-resistant heat insulation mortar for exterior wall, and preparation method thereof Download PDFInfo
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- CN104961391A CN104961391A CN201510269996.0A CN201510269996A CN104961391A CN 104961391 A CN104961391 A CN 104961391A CN 201510269996 A CN201510269996 A CN 201510269996A CN 104961391 A CN104961391 A CN 104961391A
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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 relates to a crack-resistant heat insulation mortar for an exterior wall, and a preparation method thereof. Raw materials of the heat insulation mortar comprise, by mass, 20-30 parts of cement, 40-50 parts of quartz sand, 45 parts of glass microspheres, 20-28 parts of fly ash, 0.05-0.1 parts of methyl cellulose ether, 1-2 parts of re-dispersible adhesive powder, 0.05-0.1 parts of stearate, 3-5 parts of a dye, 0.08-0.1 parts of PVA fibers and 3 parts of polyethylene alcohol fibers. The mortar can be smeared on the exterior wall to make the exterior wall have strong crack resistance, waterproofing and anti-seepage performances, high strength and high heat insulation ability, and the mortar also has the advantages of simple process, convenient operation and easy realization of industrialization, can be widely applied in exterior walls and interior walls of various buildings, and has a wide application prospect.
Description
[technical field]
The present invention relates to a kind of exterior wall anti-cracking heat insulation mortar, be specifically related to a kind of exterior wall anti-cracking heat insulation mortar and preparation method thereof.
[background technology]
Construction wall insulation is both at home and abroad general at present adopts sheet material or component heat preserving and insulating material, price is high, and difficulty of construction is large, but high insulating effect, colder area can be adapted to, for this problem, occurred thermal insulation mortar, what existing thermal insulation mortar generally adopted is glue powder polyphenyl particle is major ingredient, take cement as major gelled material, because cement is hydraulic material, general needs just can reach the intensity of design for 28 days, owing to being large-area construction, keep away unavoidable slurry dehydration, hydrated cementitious stops, and intensity does not reach design requirements.
[summary of the invention]
For the problems referred to above, the invention provides a kind of exterior wall anti-cracking heat insulation mortar, in order to solve in prior art, slurry dehydration causes hydrated cementitious to stop, and causes mortar for after exterior wall, and exterior wall intensity does not reach the problem of design requirements.
The present invention is achieved by the following technical solutions, provides a kind of exterior wall anti-cracking heat insulation mortar, and raw material calculates by mass parts, comprises following component:
Cement 20 ~ 30 parts, quartz sand 40 ~ 50 parts, glass microballon 45 parts, 20 ~ 28 parts, flyash, methyl cellulose ether 0.05 ~ 0.1 part, re-dispersible glue powder 1 ~ 2 part, stearate 0.05 ~ 0.1 part, dyestuff 3 ~ 5 parts, polyvinyl alcohol fiber fiber (polyvinyl alcohol, vinylalcohol polymer, hereinafter referred to as PVA fiber) 0.08 ~ 0.1 part, polyvinyl alcohol fiber 3 parts.
Described cement is the silicate cement of P.O 42.5, and the particle diameter of described quartz sand is 70 ~ 140 orders, and described quartz sand particle size is selected this scope can well play quartz sand and wave skeleton function in heat preservation mortar for outer wall, improves the intensity of thermal insulation mortar.
Described methyl cellulose ether delayed dissolved, dissolve when PH is 10 and accelerate, its viscosity is 40000mPas, particle diameter≤0.25mm.
The content that described re-dispersible glue powder particle diameter is greater than 400um is less than or equal to 4% of its total content, re-dispersible glue powder particle diameter is greater than content≤4% of 400um, all the other particle diameters < 400um, " lubrication " of redispersible glue makes mortar mix to have good mobility, thus obtain better workability, improve closure and the cohesive strength of mortar.
Especially, the filament length of described PVA fiber is 4 ± 2.0mm, and linear density is 2.0dtex, fibre strength >=12.5cN/dtex, initial modulus >=280cN/dtex, elongation≤7.0%, solubleness≤1.5%, and dispersiveness is 1 grade, and oil length is 0.15%; Described PVA fiber surface contains a large amount of hydroxyls, hydroxyl hydrophilic contributes to fiber and is better combined with mortar base material, the requirement of each performance of described PVA fiber improves intensity and the splitting resistance of base material, simultaneously PVA fiber has higher alkali resistance and resistance to deterioration, thus greatly improves the intensity of metope, splitting resistance, alkali resistance and resistance to deterioration.
Especially, described polyvinyl alcohol fiber selects 1788 powder, and its polymerization degree is 1800, and alcoholysis degree is 88%, and granularity is 80 ~ 120 orders; The content of described polyvinyl alcohol fiber has good wetting ability, resistance to acids and bases and resistance to deterioration by affecting mortar, if its content is too low, the above-mentioned performance of mortar will be made not reach requirement, if its too high levels, will increase production cost; In the present invention, polyvinyl alcohol fiber can be evenly mixed in mortar, very easily be dissolved in cold water, effectively can improve the water-retentivity of mortar base material, improve cohesive force and the bond stress of cement matrix, improve mortar later strength, significantly reduce the addition of redispersible rubber powder simultaneously, obviously reduce the cost of mortar material; And described polyvinyl alcohol fiber and redispersable latex powder act synergistically, wet mortar material modification is become to have snappiness, improves the performances such as the shock resistance of body of wall, anti-folding, stretch-proof.
Especially, the major ingredient of described flyash, glass microballon is silica-based and calcium-based materials, have the advantage that thermal conductivity is little, wherein glass microballon is vacuum glass microballon, the size controlling of glass microballon can be given full play within the scope of 300 ~ 800 orders the excellent properties of vacuum glass microballon; In the present invention, described flyash selects secondary, and it adds the pore that appropriate flyash and glass microballon can fill mortar base material effectively, improves the density of mortar base material, intercepts thermal conduction, can improve the bonding force of PVA fiber and cement simultaneously.
Especially, described stearate is one in sodium stearate, Magnesium Stearate, Zinic stearas, potassium stearate or its mixture, and in the present invention, the concentration of described stearate is 1.095g/cm
3, its good hydrophobicity water-repellancy that mortar is possessed is very strong, the PVA fiber simultaneously in conjunction with polyvinyl alcohol fiber and high-strength and high-modulus makes exterior wall by erosion, mortar base material and the building body same life-span of rainwater.
Especially, also comprise: the glass fibre of 0.02 ~ 0.08 part and/or PP fiber, it synchronously adds, to improve the performance of mortar with PVA fiber.
The present invention is also achieved through the following technical solutions, and provides a kind of preparation method preparing above-mentioned exterior wall anti-cracking heat insulation mortar, comprises the following steps:
The preparation of S1 raw material slurry;
The preparation of S2 additive mortar;
S3 stirs the preparation of mortar;
The preparation of S4 exterior wall anti-cracking heat insulation mortar.
Especially, described step S1 is specifically according to following scheme implementation:
Cement, quartz sand are put into hydrapulpter and decomposed, in decomposition course, need water be added, be delivered in refiner refining after decomposition, transfer in the fiber torage tank of built-in agitator after exquisiteness, obtain raw material slurry.
Especially, described step S2 is specifically according to following scheme implementation:
After SILICA FUME, quartz sand, glass microballon, flyash being mixed with process water, transfer to storage tank, obtain additive mortar.
Especially, described step S3 is specifically according to following scheme implementation:
First cement, methyl cellulose ether, re-dispersible glue powder, stearate, dyestuff, PVA fiber and step S1 are obtained raw material to starch and obtains additive mortar with step S2 and be added to mixing tank in the lump and stir, obtain stirring mortar; Afterwards mortar is stirred in acquisition to be inputted in diluter by pump, in diluter, reach requirement for the amount of 1:0.25 adds water to make the concentration of mortar in mass ratio to stir mortar and water simultaneously.
Especially, described step S4 is specifically according to following scheme implementation:
Mortar after being diluted by step S3 is delivered in agitator and stirs, and adds polyvinyl alcohol fiber, namely prepare exterior wall anti-cracking heat insulation mortar in whipping process.
Compared to prior art, anti-cracking heat insulation mortar provided by the invention and preparation method thereof, the rational proportion of each component makes the comprehensive cost preparing mortar obviously reduce, and its intensity, cohesive force, anti-impact force, splitting resistance, alkali resistance and resistance to deterioration obtain and promote greatly, the wherein reasonable employment of PVA fiber, mortar and exterior wall are better fitted, mortar and exterior wall can not be made to exist ftracture, the problem of hollowing; After mortar provided by the invention is applied in exterior wall, wall face is made to have strong splitting resistance, waterproof, seepage control, high strength and high heat retaining property.The present invention have technique simple, easy to operate, easily realize the advantages such as industrialization, exterior wall and the interior wall of various building can be widely used in, have a extensive future.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is described in more detail.
Embodiment 1
A kind of exterior wall anti-cracking heat insulation mortar, raw material calculates by mass parts, comprises following component:
Cement 30 parts, quartz sand 40 parts, glass microballon 45 parts, 28 parts, flyash, methyl cellulose ether 0.05 part, re-dispersible glue powder 2 parts, stearate 0.05 part, dyestuff 5 parts, PVA fiber 0.08 part, polyvinyl alcohol fiber 3 parts;
The filament length of described PVA fiber is 4.0mm, and linear density is 2.0dtex, fibre strength >=12.5cN/dtex, initial modulus >=280cN/dtex, elongation≤7.0%, solubleness≤1.5%, and dispersiveness is 1 grade, and oil length is 0.15%; The polymerization degree of described polyvinyl alcohol fiber is 1800, and alcoholysis degree is 88%, and granularity is 80 ~ 120 orders; Described glass microballon is vacuum glass microballon, and its particle diameter is 300 ~ 800 orders; Described stearate is the mixture of Magnesium Stearate, Zinic stearas.
Preparation method:
The preparation of S1 raw material slurry: cement, quartz sand are put into hydrapulpter and decomposed, in decomposition course, need add water, is delivered in refiner refining, transfers in the fiber torage tank of built-in agitator after exquisiteness after decomposition, obtain raw material slurry;
The preparation of S2 additive mortar: after SILICA FUME, quartz sand, glass microballon, flyash being mixed with process water, transfer to storage tank, obtains additive mortar;
S3 stirs the preparation of mortar: first cement, methyl cellulose ether, re-dispersible glue powder, stearate, dyestuff, PVA fiber and step S1 are obtained raw material and starch and step S2 obtains additive mortar and is added to mixing tank in the lump and stirs, acquisition stirring mortar; Afterwards mortar is stirred in acquisition to be inputted in diluter by pump, in diluter, reach requirement for the amount of 1:0.25 adds water to make the concentration of mortar in mass ratio to stir mortar and water simultaneously;
The preparation of S4 exterior wall anti-cracking heat insulation mortar: the mortar after being diluted by step S3 is delivered in agitator and stirs, and adds polyvinyl alcohol fiber, namely prepare exterior wall anti-cracking heat insulation mortar in whipping process.
Embodiment 2
A kind of exterior wall anti-cracking heat insulation mortar, raw material calculates by mass parts, comprises following component:
Cement 20 parts, quartz sand 50 parts, glass microballon 45 parts, 20 parts, flyash, methyl cellulose ether 0.1 part, re-dispersible glue powder 1 part, stearate 0.1 part, dyestuff 3 parts, PVA fiber 0.1 part, polyvinyl alcohol fiber 3 parts, 0.08 part, glass fibre;
The filament length of described PVA fiber is 4.0mm, and linear density is 2.0dtex, fibre strength >=12.5cN/dtex, initial modulus >=280cN/dtex, elongation≤7.0%, solubleness≤1.5%, and dispersiveness is 1 grade, and oil length is 0.15%; The polymerization degree of described polyvinyl alcohol fiber is 1800, and alcoholysis degree is 88%, and granularity is 80 ~ 120 orders; Described glass microballon is vacuum glass microballon, and its particle diameter is 300 ~ 800 orders; Described stearate is the mixture of sodium stearate, Magnesium Stearate, Zinic stearas, potassium stearate.
Preparation method is identical with embodiment 1, repeats no more herein.
Embodiment 3
A kind of exterior wall anti-cracking heat insulation mortar, raw material calculates by mass parts, comprises following component:
0.02 part, the mixture of cement 26 parts, quartz sand 45 parts, glass microballon 45 parts, 24 parts, flyash, methyl cellulose ether 0.07 part, re-dispersible glue powder 1.4 parts, stearate 0.08 part, dyestuff 4 parts, PVA fiber 0.09 part, polyvinyl alcohol fiber 3 parts, glass fibre and PP fiber;
The filament length of described PVA fiber is 4.0mm, and linear density is 2.0dtex, fibre strength >=12.5cN/dtex, initial modulus >=280cN/dtex, elongation≤7.0%, solubleness≤1.5%, and dispersiveness is 1 grade, and oil length is 0.15%; The polymerization degree of described polyvinyl alcohol fiber is 1800, and alcoholysis degree is 88%, and granularity is 80 ~ 120 orders; Described glass microballon is vacuum glass microballon, and its particle diameter is 300 ~ 800 orders; Described stearate is sodium stearate.
Preparation method is identical with embodiment 1, repeats no more herein.
Embodiment 4
A kind of exterior wall anti-cracking heat insulation mortar, raw material calculates by mass parts, comprises following component:
0.06 part, the mixture of cement 23 parts, quartz sand 42 parts, glass microballon 45 parts, 26 parts, flyash, methyl cellulose ether 0.09 part, re-dispersible glue powder 1.7 parts, stearate 0.06 part, dyestuff 4.5 parts, PVA fiber 0.09 part, polyvinyl alcohol fiber 3 parts, PP fiber;
The filament length of described PVA fiber is 4.0mm, and linear density is 2.0dtex, fibre strength >=12.5cN/dtex, initial modulus >=280cN/dtex, elongation≤7.0%, solubleness≤1.5%, and dispersiveness is 1 grade, and oil length is 0.15%; The polymerization degree of described polyvinyl alcohol fiber is 1800, and alcoholysis degree is 88%, and granularity is 80 ~ 120 orders; Described glass microballon is vacuum glass microballon, and its particle diameter is 300 ~ 800 orders; Described stearate is the mixture of sodium stearate, Magnesium Stearate, Zinic stearas.
Preparation method is identical with embodiment 1, repeats no more herein.
In the present invention, all functions component is powder body material, dry-mix processed can mix Prefabrication, transport to on-the-spot directly use, other auxiliary agents such as waterborne organic silicon are added without the need to secondary, avoid the factors such as manual operation is improper to the impact of mortar quality, can effectively monitor mortar product quality.
Should be understood that, in those skilled in the art, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. an exterior wall anti-cracking heat insulation mortar, is characterized in that, raw material calculates by mass parts, comprises following component:
Cement 20 ~ 30 parts, quartz sand 40 ~ 50 parts, glass microballon 45 parts, 20 ~ 28 parts, flyash, methyl cellulose ether 0.05 ~ 0.1 part, re-dispersible glue powder 1 ~ 2 part, stearate 0.05 ~ 0.1 part, dyestuff 3 ~ 5 parts, PVA fiber 0.08 ~ 0.1 part, polyvinyl alcohol fiber 3 parts.
2. a kind of exterior wall anti-cracking heat insulation mortar according to claim 1, it is characterized in that, the filament length of described PVA fiber is 4.0mm, linear density is 2.0dtex, fibre strength >=12.5cN/dtex, initial modulus >=280cN/dtex, elongation≤7.0%, solubleness≤1.5%, dispersiveness is 1 grade, and oil length is 0.15%.
3. a kind of exterior wall anti-cracking heat insulation mortar according to claim 1, is characterized in that, the polymerization degree of described polyvinyl alcohol fiber is 1800, and alcoholysis degree is 88%, and granularity is 80 ~ 120 orders.
4. a kind of exterior wall anti-cracking heat insulation mortar according to claim 1, is characterized in that, described glass microballon is vacuum glass microballon, and its particle diameter is 300 ~ 800 orders.
5. a kind of exterior wall anti-cracking heat insulation mortar according to claim 1, is characterized in that, described stearate is one in sodium stearate, Magnesium Stearate, Zinic stearas, potassium stearate or its mixture.
6. prepare a preparation method for the arbitrary described a kind of exterior wall anti-cracking heat insulation mortar of Claims 1 to 5, it is characterized in that, comprise the following steps:
The preparation of S1 raw material slurry;
The preparation of S2 additive mortar;
S3 stirs the preparation of mortar;
The preparation of S4 exterior wall anti-cracking heat insulation mortar.
7. the preparation method of a kind of exterior wall anti-cracking heat insulation mortar according to claim 6, is characterized in that, described step S1 is specifically according to following scheme implementation:
Cement, quartz sand are put into hydrapulpter and decomposed, in decomposition course, need water be added, be delivered in refiner refining after decomposition, transfer in the fiber torage tank of built-in agitator after exquisiteness, obtain raw material slurry.
8. the preparation method of a kind of exterior wall anti-cracking heat insulation mortar according to claim 6, is characterized in that, described step S2 is specifically according to following scheme implementation:
After SILICA FUME, quartz sand, glass microballon, flyash being mixed with process water, transfer to storage tank, obtain additive mortar.
9. the preparation method of a kind of exterior wall anti-cracking heat insulation mortar according to claim 6, is characterized in that, described step S3 is specifically according to following scheme implementation:
First cement, methyl cellulose ether, re-dispersible glue powder, stearate, dyestuff, PVA fiber and step S1 are obtained raw material to starch and obtains additive mortar with step S2 and be added to mixing tank in the lump and stir, obtain stirring mortar; Afterwards mortar is stirred in acquisition to be inputted in diluter by pump, in diluter, reach requirement for the amount of 1:0.25 adds water to make the concentration of mortar in mass ratio to stir mortar and water simultaneously.
10. the preparation method of a kind of exterior wall anti-cracking heat insulation mortar according to claim 6, is characterized in that, described step S4 is specifically according to following scheme implementation:
Mortar after being diluted by step S3 is delivered in agitator and stirs, and adds polyvinyl alcohol fiber, namely prepare exterior wall anti-cracking heat insulation mortar in whipping process.
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Cited By (9)
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|---|---|---|---|---|
| CN106007640A (en) * | 2016-05-27 | 2016-10-12 | 邓世凌 | Anti-crack thermal insulation mortar |
| CN106630897A (en) * | 2016-12-09 | 2017-05-10 | 广西北海浩邦新能源科技有限公司 | Mortar for exterior wall facings of buildings |
| WO2017187414A1 (en) * | 2016-04-29 | 2017-11-02 | Osawa Diaz José | Formulation comprising hydraulic cement with added amorphous glass and microspheres for products used to repair, maintain or renovate concrete structures |
| CN107337408A (en) * | 2017-08-02 | 2017-11-10 | 合肥广民建材有限公司 | A kind of wear-resisting antiseepage composite mortar of cracking resistance and preparation method thereof |
| CN107352911A (en) * | 2017-08-16 | 2017-11-17 | 柳州市天开企业管理有限公司 | A kind of anti-cracking heat insulation mortar |
| CN108316495A (en) * | 2018-03-20 | 2018-07-24 | 山东元宇环保科技有限公司 | A kind of heat insulative fire-proof composite plate |
| CN108558285A (en) * | 2018-04-24 | 2018-09-21 | 常州思宇知识产权运营有限公司 | A kind of cracking resistance heat-insulating finishing mortar |
| CN108793867A (en) * | 2018-06-12 | 2018-11-13 | 山东农业大学 | A kind of polymer-modified mortar and preparation method for wall earthquake-proof energy-saving integration transformation |
| CN113233823A (en) * | 2021-05-28 | 2021-08-10 | 天津中冶团泊湖置业有限公司 | Preparation process and equipment of self-insulation slurry |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017187414A1 (en) * | 2016-04-29 | 2017-11-02 | Osawa Diaz José | Formulation comprising hydraulic cement with added amorphous glass and microspheres for products used to repair, maintain or renovate concrete structures |
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| CN107352911A (en) * | 2017-08-16 | 2017-11-17 | 柳州市天开企业管理有限公司 | A kind of anti-cracking heat insulation mortar |
| CN108316495A (en) * | 2018-03-20 | 2018-07-24 | 山东元宇环保科技有限公司 | A kind of heat insulative fire-proof composite plate |
| CN108558285A (en) * | 2018-04-24 | 2018-09-21 | 常州思宇知识产权运营有限公司 | A kind of cracking resistance heat-insulating finishing mortar |
| CN108793867A (en) * | 2018-06-12 | 2018-11-13 | 山东农业大学 | A kind of polymer-modified mortar and preparation method for wall earthquake-proof energy-saving integration transformation |
| CN113233823A (en) * | 2021-05-28 | 2021-08-10 | 天津中冶团泊湖置业有限公司 | Preparation process and equipment of self-insulation slurry |
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Application publication date: 20151007 |