CN103011880A - Preparation method of inorganic foamed cement insulation board - Google Patents
Preparation method of inorganic foamed cement insulation board Download PDFInfo
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- CN103011880A CN103011880A CN2012105749582A CN201210574958A CN103011880A CN 103011880 A CN103011880 A CN 103011880A CN 2012105749582 A CN2012105749582 A CN 2012105749582A CN 201210574958 A CN201210574958 A CN 201210574958A CN 103011880 A CN103011880 A CN 103011880A
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- foamed cement
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- cement insulation
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Abstract
The invention provides an inorganic foamed cement insulation board. The inorganic foamed cement insulation board is characterized in that a slurry prescription of the inorganic foamed cement insulation board comprises the following components: 40-60 parts of ordinary portland cement by weight, 10-30 parts of pulverized coal ash, 0-20 parts of nanometer silicon dioxide, 0-5 parts of a cement additive, and foaming agent slurry which is 1-3% of the volume of all the mentioned materials. The inorganic foamed cement insulation board has the advantages that the compressive strength is higher than or equal to 0.40MPa, the heat conductivity coefficient is less than or equal to 0.045W/(m.k), and the inorganic foamed cement insulation board meets requirements of relevant standards; used as a heat insulation system product outside an external wall, the heat insulation performance of the inorganic foamed cement insulation board is greatly improved and the weight is reduced, thus the safety of the inorganic foamed cement insulation board on the wall is achieved, and the inorganic foamed cement insulation board is economical and environment-friendly.
Description
Technical field
The present invention relates to a kind of material of construction, a kind of inorganic foamed cement insulation board and preparation method thereof specifically, this inorganic foamed cement insulation board can be used for external thermal insulation system.
Background technology
According in the DBJ/T 14-085-2012 external wall outer insulation utilisation technology rules (foaming cement thermal insulation plate exterior wall external heat preservation system) to the performance index requirement of foam cement plate, ultimate compression strength is for less than or equal to 0.069W/ (mk) more than or equal to 0.40MPa, thermal conductivity, therefore the density of common inorganic foamed cement insulation board, thermal conductivity all can not satisfy the requirement of above-mentioned standard, need a kind of density of development, inorganic foamed cement insulation board that thermal conductivity is lower.
Summary of the invention
The purpose of this invention is to provide a kind of inorganic foamed cement insulation board and preparation method thereof, solve that common inorganic foamed cement insulation board density is large, thermal conductivity is large, can not satisfy the problem of the requirement of related products standard.
Technical scheme of the present invention is: a kind of inorganic foamed cement insulation board, it is characterized in that, and its formula of size is: ordinary portland cement 40～60 weight parts, flyash 10～30 weight parts, nano silicon 0～20 weight part, cement additire 0～5 weight part; Account for the whipping agent slurry of above all material 1～3% volume ratio.
Described cement adopts 42.5R silicate cement or 42.5 aluminosulfate cements.
Described flyash adopts I level flyash, and granularity is more than 325 orders.
Described nano silicon adopts granularity 4～5 nanometers.
Described cement additire comprises water-holding agent, hardening accelerator, water reducer, anti-fissuring agent and strengthening agent, part by weight is (2～5): (3～10): (3～6): (3～15): (3～8) are used for regulating the physicals of inorganic foamed cement insulation board after the application property of preparation process and preparation and reach design requirements.
Above-mentioned material is passed through accurate measurement according to described ratio, first cement is dropped in the mixing and blending machine and stir, and then the input cement additire, after the cement additire blending dispersion was even, input flyash, nano silicon mixed in mixing and blending machine and make described slurry; Then with this slurry and after the whipping agent of mechanical foaming mixes according to described ratio, be sheet material according to the common process forming and hardening, in the demoulding behind the 8h, enter steamed after the size cutting on request and press stove maintenance 24h, inorganic foamed cement insulation board gets product.
The invention has the beneficial effects as follows: its ultimate compression strength for more than or equal to 0.40MPa, thermal conductivity for less than or equal to 0.045W/ (mk), meet the requirement of related standards, as the external thermal insulation system product, greatly improved the heat-insulating property of inorganic foamed cement insulation board, reduced the weight of self, not only solved the security behind the wall on the inorganic foamed cement insulation board, and environmental protection, economy.Compare with traditional product, under identical dry density, the thermal conductivity of this product and pressure-proof and snap-resistent intensity are more excellent.
Embodiment
A kind of inorganic foamed cement insulation board of the present invention comprises by cement 40～60 weight parts, flyash 10～30 weight parts, and nano silicon 0～20 weight part and cement additire 0～5 weight part are through mixing the compound that forms; In compound, add the water of 25% (weight ratio), make slurry through mechanical stirring.Concrete work flow is as follows:
Each material is according to the accurate measurement of described ratio process, first cement is dropped in the mixing and blending machine and stir, and then input cement additire, after cement additire is uniformly dispersed, drop into flyash, the nano silicon compound that in mixing and blending machine, stirs to get, then add the water of compound 25% (weight ratio), make cement slurry through mechanical stirring.
The whipping agent slurry for preparing (whipping agent and water mix by 1: 25 part by weight and gets final product) is sent uniform bubble Droplets by foaming machine (KT-20 screw rod pumped type cement foam maker).The bubble Droplets that again cement slurry and whipping agent is sent adds in the agitator by 1%～3% volume ratio and stirs, and the cement mixing slurry with bubble Droplets that will stir is at last poured die for molding into, namely can be made into the inorganic cement warming plate
Described cement adopts 42.5R silicate cement or 42.5 aluminosulfate cements.
Described flyash adopts I level flyash, and the order number of granularity requires more than or equal to 325.
Described nano silicon adopts granularity 4～5 nanometers, described cement additire comprises water-holding agent, hardening accelerator, water reducer, anti-fissuring agent and strengthening agent, the part by weight of the interpolation of each composition is (2～5): (3～10): (3～6): (3～15): (3～8) are used for regulating the physicals of inorganic foamed cement insulation board after the application property of preparation process and preparation and reach design requirements.
Make detect parameters such as the following table of sheet material:
| Test item | The inorganic cement warming plate |
| Dry density, kg/m 3 | 200 |
| Ultimate compression strength, MPa | 0.35 |
| Folding strength, MPa | 0.15 |
| Water ratio, % | 1.4 |
| The volume water absorption rate, % | 9.9 |
| Thermal conductivity, W/ (mK) | 0.045 |
| Drying shrinkage value, mm/m | 1.65 |
| Coefficient of softening | 0.85 |
| Combustionproperty | Be not less than the A2 level |
Claims (6)
1. an inorganic foamed cement insulation board is characterized in that, its formula of size is: ordinary portland cement 40～60 weight parts, flyash 10～30 weight parts, nano silicon 0～20 weight part, cement additire 0～5 weight part; Account for the whipping agent slurry of above all material 1～3% volume ratio.
2. inorganic foamed cement insulation board according to claim 1 is characterized in that, described cement adopts 42.5R silicate cement or 42.5 aluminosulfate cements.
3. inorganic foamed cement insulation board according to claim 1 is characterized in that, described flyash adopts I level flyash, and granularity is more than 325 orders.
4. inorganic foamed cement insulation board according to claim 1 is characterized in that, described nano silicon adopts granularity 4～5 nanometers.
5. inorganic foamed cement insulation board according to claim 1, it is characterized in that, described cement additire comprises water-holding agent, hardening accelerator, water reducer, anti-fissuring agent and strengthening agent, part by weight is (2～5): (3～10): (3～6): (3～15): (3～8) are used for regulating the physicals of inorganic foamed cement insulation board after the application property of preparation process and preparation and reach design requirements.
6. inorganic foamed cement insulation board according to claim 1, it is characterized in that, above-mentioned material is passed through accurate measurement according to described ratio, first cement is dropped in the mixing and blending machine and stir, and then input cement additire, after the cement additire blending dispersion was even, input flyash, nano silicon mixed in mixing and blending machine and make described slurry; Then with this slurry and after the whipping agent of mechanical foaming mixes according to described ratio, be sheet material according to the common process forming and hardening, in the demoulding behind the 8h, enter steamed after the size cutting on request and press stove maintenance 24h, inorganic foamed cement insulation board gets product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105749582A CN103011880A (en) | 2012-12-27 | 2012-12-27 | Preparation method of inorganic foamed cement insulation board |
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| CN2012105749582A CN103011880A (en) | 2012-12-27 | 2012-12-27 | Preparation method of inorganic foamed cement insulation board |
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| CN103011880A true CN103011880A (en) | 2013-04-03 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274717A (en) * | 2013-05-16 | 2013-09-04 | 常州飞云建筑材料有限公司 | Composite foaming thermal-insulation panel and external thermal-insulation system thereof |
| CN103449834A (en) * | 2013-07-27 | 2013-12-18 | 安徽省中坤元新型建材有限公司 | Cement foamed thermal-insulation board and preparation method thereof |
| CN104193269A (en) * | 2014-08-27 | 2014-12-10 | 成都市容德建筑劳务有限公司 | High-strength heat-insulation composite brick |
| CN104311108A (en) * | 2014-10-09 | 2015-01-28 | 江西中科新建材有限公司 | Hydrophobic inorganic nano insulation board and preparation method thereof |
| CN104496353A (en) * | 2014-12-15 | 2015-04-08 | 广西科技大学 | Foamed cement heat insulation board and preparation method thereof |
| CN105645990A (en) * | 2015-12-18 | 2016-06-08 | 卓达新材料科技集团威海股份有限公司 | Foaming cement agent 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 |
| CN108373312A (en) * | 2018-05-16 | 2018-08-07 | 四川文希科技有限公司 | A kind of building thermal insulation material |
| CN109942313A (en) * | 2019-03-11 | 2019-06-28 | 江苏华友装饰工程有限公司 | Light wall material and preparation method thereof |
| EP3237353B1 (en) | 2014-12-23 | 2022-04-20 | Holcim Technology Ltd | Method for the continuous production of a low-density mineral foam |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102603246A (en) * | 2012-03-13 | 2012-07-25 | 宜兴市大东方实业有限公司 | Foamed cement heat insulation board and preparation method thereof |
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- 2012-12-27 CN CN2012105749582A patent/CN103011880A/en active Pending
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| CN102603246A (en) * | 2012-03-13 | 2012-07-25 | 宜兴市大东方实业有限公司 | Foamed cement heat insulation board and preparation method thereof |
Non-Patent Citations (1)
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| 刘吉平 等: "《建筑材料与纳米材料》", 30 April 2007, 化学工业出版社 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274717A (en) * | 2013-05-16 | 2013-09-04 | 常州飞云建筑材料有限公司 | Composite foaming thermal-insulation panel and external thermal-insulation system thereof |
| CN103449834A (en) * | 2013-07-27 | 2013-12-18 | 安徽省中坤元新型建材有限公司 | Cement foamed thermal-insulation board and preparation method thereof |
| CN103449834B (en) * | 2013-07-27 | 2015-07-01 | 安徽省中坤元新型建材有限公司 | Cement foamed thermal-insulation board and preparation method thereof |
| CN104193269A (en) * | 2014-08-27 | 2014-12-10 | 成都市容德建筑劳务有限公司 | High-strength heat-insulation composite brick |
| CN104193269B (en) * | 2014-08-27 | 2016-03-23 | 成都来宝石油设备有限公司 | High-strength heat-insulation composite brick |
| CN104311108A (en) * | 2014-10-09 | 2015-01-28 | 江西中科新建材有限公司 | Hydrophobic inorganic nano insulation board and preparation method thereof |
| CN104496353A (en) * | 2014-12-15 | 2015-04-08 | 广西科技大学 | Foamed cement heat insulation board and preparation method thereof |
| EP3237353B1 (en) | 2014-12-23 | 2022-04-20 | Holcim Technology Ltd | Method for the continuous production of a low-density mineral foam |
| CN105645990A (en) * | 2015-12-18 | 2016-06-08 | 卓达新材料科技集团威海股份有限公司 | Foaming cement agent 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 |
| CN108373312A (en) * | 2018-05-16 | 2018-08-07 | 四川文希科技有限公司 | A kind of building thermal insulation material |
| CN109942313A (en) * | 2019-03-11 | 2019-06-28 | 江苏华友装饰工程有限公司 | Light wall material and preparation method thereof |
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Application publication date: 20130403 |