CN104829179A - White vitrified bead modified insulation masonry mortar and using method thereof - Google Patents
White vitrified bead modified insulation masonry mortar and using method thereof Download PDFInfo
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- CN104829179A CN104829179A CN201510192072.5A CN201510192072A CN104829179A CN 104829179 A CN104829179 A CN 104829179A CN 201510192072 A CN201510192072 A CN 201510192072A CN 104829179 A CN104829179 A CN 104829179A
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Abstract
The present invention belongs to the field of building energy-saving materials, and relates to white vitrified bead modified insulation masonry mortar and a using method thereof. The white vitrified bead modified insulation masonry mortar uses vitrified beads to partly replace aggregate, and comprises the fowling components by mass: 47.5-70.5% of a gelled material, 10%-35% of the vitrified beads, 3.6-20% of the aggregate, 0.3%-2% of dispersable emulsion powder, 0.1%-0.3% of hydroxypropyl methyl cellulose ether, 0.1%-1.2% of polypropylene fiber, 0.5%-1% of sepiolite fiber, 0.1%-0.5% of a waterproofing agent and 0.08%-0.3% of mortar king. The white vitrified bead modified insulation masonry mortar has excellent construction performance, good wall body bonding performance, and white color, and in the premise of meeting the basic mechanical properties and durability properties of the bonding mortar, effectively reduces the mortar thermal conductivity coefficient, saves building energy consumption, and is very broad in application development prospect.
Description
Technical field
The present invention relates to building material field, be specifically related to a kind of white vitrified micro-bead heat preserving masonry mortar and preparation method thereof.
Background technology
The exterior wall heat-preserving system of China mainly adopts organic insulation material.Although this kind of lagging material has good thermal and insulating performance, weathering resistance is poor, volume stability is bad, not fire-resistant, easily aging.Compared to organic insulation material, inorganic heat insulation mortar has plurality of advantages.Inorganic heat insulation mortar; especially kervit microbead insulated sand slurry; it be by glass bead aggregate premixing in inorganic coagulation material and organic additive; the single-component thermal insulation mortar formed; have that cost is low, intensity is high, heat insulating, fire prevention, the advantage such as weather-proof, can process with surface layer anticracking grout, cross section the heat insulation system forming heat insulating, fireproof anti-cracking, waterproof, seepage control together with mortar and subsidiary material.
Meanwhile, building external envelope structure is as the main position of architectural energy consumption, and its power consumption accounts for the largest percentage in whole building energy consumption, and therefore its power-saving technology becomes the emphasis of every country building structure energy saving research.Building exterior wall heat preserving is for alleviating indoor heat load, preventing peripheral structure be full of cracks and internal condensation from being all favourable; agent structure can be protected simultaneously; reduce thermal stresses; avoid the generation of cold bridge phenomenon; having obvious technological merit, is the mainstream technology of Present Domestic External building peripheral structure heat insulating.
Therefore, kervit microbead insulated sand slurry has above plurality of advantages, is widely used in multilayer and high-rise steel reinforced concrete structural construction, aerated concrete masonry body of wall and various brick-and-concrete buildings inner, external wall plaster heat insulating work.But, for preventing kervit microbead insulated sand slurry shrinkage cracking, generally the anti-crack fiber such as polypropylene fibre or wood fibre can be added in thermal insulation mortar.But polypropylene fibre smooth surface, surface energy is low, when mixing cement-based material, there is the problem of adhesive property difference between fiber dispersion performance difference and fiber-matrix.Mix in kervit microbead insulated sand slurry system though wood fibre is easier, there is the shortcoming of slow setting.Meanwhile, as masonry mortar, there is the problem that mechanical property is repelled mutually with thermal and insulating performance in kervit microbead insulated sand slurry.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of white glass bead modification heat-insulating masonry mortar and using method; use as the masonry mortar in aerated concrete masonry and various brick-and-concrete buildings, mechanical property and thermal and insulating performance requirement can be met simultaneously.
Technical scheme: the present invention is directed to the above-mentioned defect that current kervit microbead insulated sand slurry material exists; medium sand is replaced by glass bead part; sepiolite fiber modified vitrification bead thermal insulation masonry mortar, optimized mix-proportion, obtained high comprehensive performance, lower-cost vitrified micro-bead heat preserving masonry mortar.
Its component and proportioning (mass percent) are:
Described gelling material is 325 white portland cements.
Described glass bead tap density is 100 ~ 120Kg/m
3.
Described aggregate is medium sand.
Described polymer dispersion powder is ethene-vinyl acetate between to for plastic polymer dispersion powder.
Selected hydroxypropyl methyl cellulose ether viscosity is between 100000Pa.s ~ 150000Pa.s.
To be that 11mm is short cut polypropylene fibre to described polypropylene fibre.
Selected sepiolite fibre is different lengths grating: 3-5mm 30% ~ 40%; 5-10mm 40% ~ 50%; 10-15mm 20% ~ 30%.
Described water-resisting agent is waterproofing agent of organosilicon.
Described mortar king is alkyl sulfonates mortar king.
Weigh each component in described each ratio, first cement, medium sand, sepiolite fibre and polypropylene fibre are mixed, then add various additive and glass bead successively, after mixing, namely obtain described glass bead modification heat-insulating masonry mortar.
By heat insulating mortar powder and water 1:0.45 ~ 1:0.6 ratio in mass ratio during construction, stir 2 to 3 minutes, denseness controls at 60 ~ 85mm, leaves standstill and can use for 3 to 5 minutes.
Beneficial effect: following table is to glass bead modification heat-insulating masonry mortar end properties detected result of the present invention: (detection method: said components is prepared into vitrified micro-bead heat preserving masonry mortar dry powder by previous process; add suitable quantity of water, by the shaping sample of standard-required.)
As can be seen from the above table; glass bead modification heat-insulating masonry mortar thermal conductivity of the present invention is less than 0.30W/ (mK); resistance to compression and cohesive strength is high, linear shrinkage is little, indices all meets JC 890-2001 " steam-pressing aero-concrete masonry mortar and plastering mortar " standard-required.
In sum, due to the above-mentioned beneficial effect that the present invention has, so thermal-insulation energy-conservation Be very effective, pi of strength is superior, has saved buildings power consumption to a greater degree, and simple to operate during construction, technical requirements is not high, and quality is easy to control, and is convenient to large-scale promotion application.
Embodiment
Embodiment 1:
By heat insulating mortar powder and water 1:0.47 ratio in mass ratio during construction, stir 2 to 3 minutes, leave standstill 3 to 5 minutes aftershaping samples.
It is as follows that 14d records its fundamental property:
Dry density is 885kg/m
3, ultimate compression strength is 6.28MPa, and thermal conductivity is 0.278W/ (mK).
Embodiment 2:
By heat insulating mortar powder and water 1:0.49 ratio in mass ratio during construction, stir 2 to 3 minutes, leave standstill 3 to 5 minutes aftershaping samples.
It is as follows that 14d records its performance:
Dry density is 887kg/m
3, ultimate compression strength is 6.93MPa, and thermal conductivity is 0.296W/ (mK).
Embodiment 3:
During construction, heat insulating mortar powder and water are pressed 1:0.50 mass ratio, ratio stirs 2 to 3 minutes, leaves standstill 3 to 5 minutes aftershaping samples.
It is as follows that 28d records its performance:
Dry density is 853kg/m
3, ultimate compression strength is 7.2MPa, and thermal conductivity is 0.240W/ (mK).
Embodiment 4:
By heat insulating mortar powder and water 1:0.60 ratio in mass ratio during construction, stir 2 to 3 minutes, leave standstill 3 to 5 minutes aftershaping samples.
It is as follows that 28d records its performance:
Dry density is 668kg/m
3, ultimate compression strength is 3.5MPa, and thermal conductivity is 0.120W/ (mK).
Claims (10)
1. a white glass bead modification heat-insulating masonry mortar, is characterized in that the mass percent of each component of this masonry mortar is:
2. white glass bead modification heat-insulating masonry mortar according to claim 1, it is characterized in that, described gelling material is 32.5 white portland cements, and described aggregate is medium sand.
3. white glass bead modification heat-insulating masonry mortar according to claim 1, it is characterized in that, described glass bead tap density is 100 ~ 120Kg/m
3.
4. white glass bead modification heat-insulating masonry mortar according to claim 1, is characterized in that, described polymer dispersion powder is ethene-vinyl acetate between to for plastic polymer dispersion powder.
5. white glass bead modification heat-insulating masonry mortar according to claim 1, it is characterized in that, selected hydroxypropyl methyl cellulose ether viscosity is between 100000Pa.s ~ 150000Pa.s.
6. white glass bead modification heat-insulating masonry mortar according to claim 1, is characterized in that, to be that 11mm is short cut polypropylene fibre to described polypropylene fibre.
7. white glass bead modification heat-insulating masonry mortar according to claim 1, it is characterized in that, selected sepiolite fibre is different lengths grating: 3-5mm 30% ~ 40%; 5-10mm 40% ~ 50%; 10-15mm 20% ~ 30%.
8. white glass bead modification heat-insulating masonry mortar according to claim 1, it is characterized in that, described water-resisting agent is waterproofing agent of organosilicon.
9. white glass bead modification heat-insulating masonry mortar according to claim 1, it is characterized in that, described mortar king is alkyl sulfonates mortar king.
10. the using method of a white glass bead modification heat-insulating masonry mortar as claimed in claim 1; it is characterized in that: by heat insulating mortar powder and water 1:0.45 ~ 1:0.6 ratio in mass ratio during construction; stir 2 to 3 minutes; denseness controls at 60 ~ 85mm, leaves standstill and can use for 3 to 5 minutes.
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CN104829179B CN104829179B (en) | 2016-11-02 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105541227A (en) * | 2015-12-25 | 2016-05-04 | 河南兴安新型建筑材料有限公司 | Yellow River sand masonry thermal-insulation mortar and preparation method of Yellow River sand masonry thermal-insulation mortar |
CN106639206A (en) * | 2017-01-20 | 2017-05-10 | 南通苏宝建筑节能科技有限公司 | Construction process of colored heat-insulation and heat-preservation dry powder mortar |
CN109748551A (en) * | 2019-01-31 | 2019-05-14 | 浙江忠信新型建材股份有限公司 | The general mortar of autoclaved aerated concrete block plastering and building and preparation process |
CN113354357A (en) * | 2021-06-16 | 2021-09-07 | 江西中科新建材股份有限公司 | Silica aerogel modified thermal insulation masonry mortar and use method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101549978A (en) * | 2009-05-13 | 2009-10-07 | 同济大学 | Sepiolite fiber modified vitrification bead thermal insulation mortar |
-
2015
- 2015-04-21 CN CN201510192072.5A patent/CN104829179B/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101549978A (en) * | 2009-05-13 | 2009-10-07 | 同济大学 | Sepiolite fiber modified vitrification bead thermal insulation mortar |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105541227A (en) * | 2015-12-25 | 2016-05-04 | 河南兴安新型建筑材料有限公司 | Yellow River sand masonry thermal-insulation mortar and preparation method of Yellow River sand masonry thermal-insulation mortar |
CN106639206A (en) * | 2017-01-20 | 2017-05-10 | 南通苏宝建筑节能科技有限公司 | Construction process of colored heat-insulation and heat-preservation dry powder mortar |
CN109748551A (en) * | 2019-01-31 | 2019-05-14 | 浙江忠信新型建材股份有限公司 | The general mortar of autoclaved aerated concrete block plastering and building and preparation process |
CN113354357A (en) * | 2021-06-16 | 2021-09-07 | 江西中科新建材股份有限公司 | Silica aerogel modified thermal insulation masonry mortar and use method thereof |
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CN104829179B (en) | 2016-11-02 |
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