CN103539404A - Cement foamed inorganic insulating board and manufacturing technology thereof - Google Patents
Cement foamed inorganic insulating board and manufacturing technology thereof Download PDFInfo
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- CN103539404A CN103539404A CN201310455516.0A CN201310455516A CN103539404A CN 103539404 A CN103539404 A CN 103539404A CN 201310455516 A CN201310455516 A CN 201310455516A CN 103539404 A CN103539404 A CN 103539404A
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- cement
- inorganic heat
- foamed inorganic
- insulation board
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- 239000004568 cement Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000005516 engineering process Methods 0.000 title abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 9
- 239000011575 calcium Substances 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 22
- 239000003469 silicate cement Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000005187 foaming Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 230000002209 hydrophobic effect Effects 0.000 claims description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 10
- 239000003381 stabilizer Substances 0.000 claims description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 9
- 239000004571 lime Substances 0.000 claims description 9
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 7
- 239000010881 fly ash Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- -1 19~21 parts Substances 0.000 claims description 2
- 239000011398 Portland cement Substances 0.000 abstract description 5
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 abstract 1
- 239000010883 coal ash Substances 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000005070 sampling Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011381 foam concrete Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a cement foamed inorganic insulating board and a manufacturing technology thereof. The cement foamed inorganic insulating board comprises the following ingredients in parts by weight: 57-63 parts of Portland cement, 19-21 parts of coal ash, early-strength agent which is 3% of the usage amount of Portland cement, hydrated calcium which is 3% of the usage amount of Portland cement, and a proper amount of foaming agent and PP fiber, wherein the usage amount of the PP fiber is 2.7-3.3kg per cubic meter of die volume; the manufacturing technology of the cement foamed inorganic insulating board comprises three stages: pouring, curing and cutting. According to the cement foamed inorganic insulating board and the manufacturing technology thereof, for improving the properties of the existing cement foamed inorganic insulating board, the formula of materials can be optimized, ordinary portland cement is selected to replace sulphate aluminum cement, the production technology can be optimized and improved, so that the quality of the manufactured new product can be greatly improved as compared with that of the existing product, the functional index can be improved by 10% on the original basis, the safety index can be improved by 2.5 times on the original basis, and the quality appearance can be improved by three to four times on the original basis.
Description
Technical field
The invention belongs to building field, particularly a kind of cement foamed inorganic heat-insulation board and manufacturing process thereof.
Background technology
existing cement foamed inorganic heat-insulation board, claim again: foamed concrete or foam cement plate or foamed concrete plate, because of formula and the backwardness of production technique and unreasonable, cause the quality of product low, in security function index, in the situation of thermal conductivity, its safety indexes, as mechanical property cannot effectively be ensured, otherwise or; In addition, because currently available products adopts special cement, if fast gravity die aluminosulfate cement is as main composition, cause the poor dimensional stability of product, product, in application, is prone to the phenomenon of cracking.
Summary of the invention
The object of the invention is to: for the problem of above-mentioned existence, provide a kind of product in quality, to have cement foamed inorganic heat-insulation board and the manufacturing process thereof significantly improving.
For achieving the above object, the technical solution adopted for the present invention to solve the technical problems is:
A kind of cement foamed inorganic heat-insulation board, it is characterized in that: the raw material that comprises following weight part: 57～63 parts of silicate cements, 19～21 parts, flyash, hardening accelerator be silicate cement consumption 3%, hard calcium be silicate cement consumption 3%, appropriate whipping agent and PP fiber, the consumption of described PP fiber is for by every cubic metre of 2.7～3.3kg of mold volumes.
In order to improve yield rate and production stability, improve product tensile strength simultaneously, reduce product thermal conductivity, cement foamed inorganic heat-insulation board of the present invention, it also comprises suds-stabilizing agent and hydroxyl rubber powder, the weight part of described suds-stabilizing agent is 5% of silicate cement consumption, and the weight part of described hydroxyl rubber powder is 5% of silicate cement consumption.
In order further to improve yield rate and production stability, cement foamed inorganic heat-insulation board of the present invention, it also comprises air entrapment agent, talcum powder and lime powder, the weight part of described air entrapment agent is 2% of silicate cement consumption, described talcous weight part is 1.9～2.1 parts, and the weight part of described lime powder is 2.85～3.15 parts.
In order to improve the water tolerance of product, increase product coefficient of softening, cement foamed inorganic heat-insulation board of the present invention, it also comprises water reducer and efficient hydrophobic agent, the weight part of described water reducer is 4% of silicate cement consumption, and the weight part of described efficient hydrophobic agent is 3% of silicate cement consumption.
Cement foamed inorganic heat-insulation board of the present invention, its raw material by following weight part forms:
(1) silicate cement is 60 parts;
(2) flyash is 20 parts;
(3) water reducer is 2.4 parts;
(4) hardening accelerator is 1.8 parts;
(5) air entrapment agent is 1.2 parts;
(6) suds-stabilizing agent is 3 parts;
(7) efficient hydrophobic agent is 1.8 parts;
(8) hydroxyl rubber powder is 3 parts;
(9) hard calcium is 1.8 parts;
(10) talcum powder is 2 parts;
(11) lime powder is 3 parts;
(12) consumption of PP fiber is for pressing every cubic metre of 3kg of mold volumes;
(13) appropriate whipping agent.
A manufacturing process for cement foamed inorganic heat-insulation board, is characterized in that: comprise following processing step:
A), build, before building, the material of (1) in above-mentioned formula～(12) is dry mixed in dry-mixed machine by formula rate, make uniform dry mixed powder standby; In wet mixing machine, put into the water of 50～80 ㎏; The powder being dry mixed is poured in wet mixing machine and stirred 3～5 minutes by the dry mixed powder of 250 ㎏ * mold volumes; Whipping agent is poured in wet mixing machine, and the weight ratio of described whipping agent and water is 1:20, then stirs and within 30～50 seconds, put into rapidly afterwards mould; In 20～40 minutes, cement foamed inorganic heat-insulation board slurry will complete foaming process, and in this process, forbidding has any disturbance to the cement foamed inorganic heat-insulation board slurry in foaming process;
B), maintenance, the cement foamed inorganic heat preservation plate blank material of foaming in mould, within the presetting period of 24 hours, forbids disturbance; In natural curing demoulding after 3 days; It is standing more than 7 days that blank after the demoulding is transported to the standing district of blank;
C), cutting, standing expired cement foamed inorganic heat preservation plate blank material is cut by dimensional requirement on cutting production line.
The manufacturing process of cement foamed inorganic heat-insulation board of the present invention, it adheres to lagging material in blank surface covered with plastic film, mold periphery in the maintenance processes of described step b); In the standing process of blank, blank is carried out to whole covering.
The manufacturing process of cement foamed inorganic heat-insulation board of the present invention, it is in described step c), and the finished cement foaming inorganic heat-insulation board having cut need to be removed the floating dust being attached on plate face.
The present invention is for improving the performance of existing cement foamed inorganic heat-insulation board, material prescription is optimized, select ordinary Portland cement to replace aluminosulfate cement, production technique is optimized and is improved simultaneously, thereby make the product innovation producing than currently available products, in quality, have significantly raising, its functional attributes improves 10% on original basis, and safety indexes improves 2.5 times on original basis, the apparent property of quality, as size improves 3 to 4 times on original basis.
Embodiment
Below the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1:
An inorganic heat-insulation board, is comprised of the raw material of following weight part:
(1) silicate cement is 60 parts;
(2) flyash is 20 parts;
(3) water reducer is 2.4 parts;
(4) hardening accelerator is 1.8 parts;
(5) air entrapment agent is 1.2 parts;
(6) suds-stabilizing agent is 3 parts;
(7) efficient hydrophobic agent is 1.8 parts;
(8) hydroxyl rubber powder is 3 parts;
(9) hard calcium is 1.8 parts;
(10) talcum powder is 2 parts;
(11) lime powder is 3 parts;
(12) consumption of PP fiber is for pressing every cubic metre of 3kg of mold volumes;
(13) appropriate whipping agent.
Wherein, described hard calcium is mainly used in improving product ultimate compression strength, hydroxyl rubber powder is mainly used in improving product tensile strength, and water reducer and suds-stabilizing agent are mainly used in reducing product thermal conductivity, and efficient hydrophobic agent is mainly used in improving product product water tolerance, thereby improve product coefficient of softening, and by having improved resistance to compression, the tensile strength of product, making product size become large, the larger quality of size is higher, the whole unit weight of product reduces, thereby improves the heat insulation effect of product.
A manufacturing process for above-mentioned cement foamed inorganic heat-insulation board, comprises following processing step:
A), build, before building, the material of (1) in above-mentioned formula～(12) is dry mixed in dry-mixed machine by formula rate, make uniform dry mixed powder standby; In wet mixing machine, put into the water of 50～80 ㎏; The powder being dry mixed is poured in wet mixing machine and stirred 3～5 minutes by the dry mixed powder of 250 ㎏ * mold volumes; Whipping agent is poured in wet mixing machine, and the weight ratio of described whipping agent and water is 1:20, then stirs and within 30～50 seconds, put into rapidly afterwards mould; In 20～40 minutes, cement foamed inorganic heat-insulation board slurry will complete foaming process, and in this process, forbidding has any disturbance to the cement foamed inorganic heat-insulation board slurry in foaming process.
B), maintenance, the cement foamed inorganic heat preservation plate blank material of foaming in mould, within the presetting period of 24 hours, forbids disturbance; In natural curing demoulding after 3 days; It is standing more than 7 days that blank after the demoulding is transported to the standing district of blank; In maintenance processes, in blank surface covered with plastic film, mold periphery, adhere to lagging material, reduce the internal-external temperature difference of cement foamed inorganic heat preservation plate blank material, to eliminate the cracking phenomena of blank; In the standing process of blank, blank is carried out to whole covering, prevent too fast the scattering and disappearing of moisture in blank, affect the hydrated cementitious effect in blank, and then affect the intensity of cement foamed inorganic heat-insulation board.
C), cutting, standing expired cement foamed inorganic heat preservation plate blank material is cut by dimensional requirement on cutting production line, the finished cement foaming inorganic heat-insulation board having cut need to be removed the floating dust being attached on plate face, in order to avoid affect the normal use of cement foamed inorganic heat-insulation board.
The compare quality of existing product of the cement foamed inorganic heat-insulation board of producing according to the formula for a product of embodiment 1 and production technique has significantly and improves, and refers to following table:
The listed core index of upper table is interrelated and a restrict relation.In general, unit weight is large, and intensity is high, and size is large, and coefficient of softening is large, and thermal conductivity is large; Unit weight is little, and all the other indexs are reverse trend, so the setting of core index is a process of rationally determining trim point.Wherein, intensity and thermal conductivity are to determine security and functional key index.
With current industry level, if require in the mode of sampling the index meeting in the provincial standard in Jiangsu or Shandong with a collection of product simultaneously, be difficult, national standard relatively tallies with the actual situation.And the cement foamed inorganic heat-insulation board of producing by formula for a product of the present invention and production technique is can guarantee to meet above index with a collection of product in the mode of sampling simultaneously.
Embodiment 2:
An inorganic heat-insulation board, is comprised of the raw material of following weight part:
(1) silicate cement is 57 parts;
(2) flyash is 19 parts;
(3) water reducer is 2.28 parts;
(4) hardening accelerator is 1.71 parts;
(5) air entrapment agent is 1.14 parts;
(6) suds-stabilizing agent is 2.85 parts;
(7) efficient hydrophobic agent is 1.71 parts;
(8) hydroxyl rubber powder is 2.85 parts;
(9) hard calcium is 1.71 parts;
(10) talcum powder is 1.9 parts;
(11) lime powder is 2.85 parts;
(12) consumption of PP fiber is for pressing every cubic metre of 2.7kg of mold volumes;
(13) appropriate whipping agent.
The manufacturing process of above-mentioned cement foamed inorganic heat-insulation board is identical with embodiment 1.
The cement foamed inorganic heat-insulation board of producing according to the formula for a product of embodiment 2 and production technique slightly declines on core index than the cement foamed inorganic heat-insulation board of producing according to embodiment 1, but can guarantee equally to meet the index in the provincial standard in Jiangsu or Shandong with a collection of product in the mode of sampling simultaneously.
Embodiment 3:
An inorganic heat-insulation board, is comprised of the raw material of following weight part:
(1) silicate cement is 63 parts;
(2) flyash is 21 parts;
(3) water reducer is 2.52 parts;
(4) hardening accelerator is 1.89 parts;
(5) air entrapment agent is 1.26 parts;
(6) suds-stabilizing agent is 3.15 parts;
(7) efficient hydrophobic agent is 1.89 parts;
(8) hydroxyl rubber powder is 3.15 parts;
(9) hard calcium is 1.89 parts;
(10) talcum powder is 2.1 parts;
(11) lime powder is 3.15 parts;
(12) consumption of PP fiber is for pressing every cubic metre of 3.3kg of mold volumes;
(13) appropriate whipping agent.
The manufacturing process of above-mentioned cement foamed inorganic heat-insulation board is identical with embodiment 1.
The cement foamed inorganic heat-insulation board of producing according to the formula for a product of embodiment 3 and production technique slightly declines on core index than the cement foamed inorganic heat-insulation board of producing according to embodiment 1, but can guarantee equally to meet the index in the provincial standard in Jiangsu or Shandong with a collection of product in the mode of sampling simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a cement foamed inorganic heat-insulation board, it is characterized in that: the raw material that comprises following weight part: 57～63 parts of silicate cements, 19～21 parts, flyash, hardening accelerator be silicate cement consumption 3%, hard calcium be silicate cement consumption 3%, appropriate whipping agent and PP fiber, the consumption of described PP fiber is for by every cubic metre of 2.7～3.3kg of mold volumes.
2. cement foamed inorganic heat-insulation board according to claim 1, is characterized in that: also comprise suds-stabilizing agent and hydroxyl rubber powder, the weight part of described suds-stabilizing agent is 5% of silicate cement consumption, and the weight part of described hydroxyl rubber powder is 5% of silicate cement consumption.
3. cement foamed inorganic heat-insulation board according to claim 2, it is characterized in that: also comprise air entrapment agent, talcum powder and lime powder, the weight part of described air entrapment agent is 2% of silicate cement consumption, described talcous weight part is 1.9～2.1 parts, and the weight part of described lime powder is 2.85～3.15 parts.
4. cement foamed inorganic heat-insulation board according to claim 3, it is characterized in that: also comprise water reducer and efficient hydrophobic agent, the weight part of described water reducer is 4% of silicate cement consumption, and the weight part of described efficient hydrophobic agent is 3% of silicate cement consumption.
5. cement foamed inorganic heat-insulation board according to claim 4, is characterized in that: its raw material by following weight part forms:
(1) silicate cement is 60 parts;
(2) flyash is 20 parts;
(3) water reducer is 2.4 parts;
(4) hardening accelerator is 1.8 parts;
(5) air entrapment agent is 1.2 parts;
(6) suds-stabilizing agent is 3 parts;
(7) efficient hydrophobic agent is 1.8 parts;
(8) hydroxyl rubber powder is 3 parts;
(9) hard calcium is 1.8 parts;
(10) talcum powder is 2 parts;
(11) lime powder is 3 parts;
(12) consumption of PP fiber is for pressing every cubic metre of 3kg of mold volumes;
(13) appropriate whipping agent.
6. as a manufacturing process for above-mentioned cement foamed inorganic heat-insulation board claimed in claim 5, it is characterized in that: comprise following processing step:
A), build, before building, the material of (1) in above-mentioned formula～(12) is dry mixed in dry-mixed machine by formula rate, make uniform dry mixed powder standby; In wet mixing machine, put into the water of 50～80 ㎏; The powder being dry mixed is poured in wet mixing machine and stirred 3～5 minutes by the dry mixed powder of 250 ㎏ * mold volumes; Whipping agent is poured in wet mixing machine, and the weight ratio of described whipping agent and water is 1:20, then stirs and within 30～50 seconds, put into rapidly afterwards mould; In 20～40 minutes, cement foamed inorganic heat-insulation board slurry will complete foaming process, and in this process, forbidding has any disturbance to the cement foamed inorganic heat-insulation board slurry in foaming process;
B), maintenance, the cement foamed inorganic heat preservation plate blank material of foaming in mould, within the presetting period of 24 hours, forbids disturbance; In natural curing demoulding after 3 days; It is standing more than 7 days that blank after the demoulding is transported to the standing district of blank;
C), cutting, standing expired cement foamed inorganic heat preservation plate blank material is cut by dimensional requirement on cutting production line.
7. the manufacturing process of cement foamed inorganic heat-insulation board according to claim 6, is characterized in that: in the maintenance processes of described step b), in blank surface covered with plastic film, mold periphery, adhere to lagging material; In the standing process of blank, blank is carried out to whole covering.
8. the manufacturing process of cement foamed inorganic heat-insulation board according to claim 6, is characterized in that: in described step c), the finished cement foaming inorganic heat-insulation board having cut need to be removed the floating dust being attached on plate face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310455516.0A CN103539404B (en) | 2013-09-30 | 2013-09-30 | A kind of cement foamed inorganic heat-insulation board and manufacturing process thereof |
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| CN201310455516.0A CN103539404B (en) | 2013-09-30 | 2013-09-30 | A kind of cement foamed inorganic heat-insulation board and manufacturing process thereof |
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| CN103539404B CN103539404B (en) | 2015-12-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104446184A (en) * | 2014-11-10 | 2015-03-25 | 广西华欣建材有限公司 | Waterproof block |
| CN104496357A (en) * | 2014-12-25 | 2015-04-08 | 江西佰科建筑节能材料有限公司 | A-class fireproof foaming heat insulation board and preparation method thereof |
| CN105693149A (en) * | 2015-07-03 | 2016-06-22 | 怀宁县宝友工贸有限公司 | Composite building heat-preservation sheet material and preparation method thereof |
| CN108203260A (en) * | 2016-12-16 | 2018-06-26 | 天津摩根坤德高新科技发展有限公司 | A kind of foaming insulation board containing nano powder |
| CN108929083A (en) * | 2018-07-06 | 2018-12-04 | 东南大学 | Low thermal conductivity cracking resistance light cement base building thermal insulation material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104446184A (en) * | 2014-11-10 | 2015-03-25 | 广西华欣建材有限公司 | Waterproof block |
| CN104496357A (en) * | 2014-12-25 | 2015-04-08 | 江西佰科建筑节能材料有限公司 | A-class fireproof foaming heat insulation board and preparation method thereof |
| CN104496357B (en) * | 2014-12-25 | 2017-01-18 | 江西佰科建筑节能材料有限公司 | A-class fireproof foaming heat insulation board and preparation method thereof |
| CN105693149A (en) * | 2015-07-03 | 2016-06-22 | 怀宁县宝友工贸有限公司 | Composite building heat-preservation sheet material and preparation method thereof |
| CN108203260A (en) * | 2016-12-16 | 2018-06-26 | 天津摩根坤德高新科技发展有限公司 | A kind of foaming insulation board containing nano powder |
| CN108929083A (en) * | 2018-07-06 | 2018-12-04 | 东南大学 | Low thermal conductivity cracking resistance light cement base building thermal insulation material and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103539404B (en) | 2015-12-02 |
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