CN103058705B - Composite autoclaved aerated concrete self-insulation building block - Google Patents
Composite autoclaved aerated concrete self-insulation building block Download PDFInfo
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- CN103058705B CN103058705B CN201310032341.2A CN201310032341A CN103058705B CN 103058705 B CN103058705 B CN 103058705B CN 201310032341 A CN201310032341 A CN 201310032341A CN 103058705 B CN103058705 B CN 103058705B
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- building block
- insulation building
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- concrete heat
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Abstract
The invention discloses a composite autoclaved aerated concrete self-insulation building block which comprises one or mixture of two of expandable polystyrene, foam granules, expandable polyethylene foam granules, expandable polyvinyl chloride foam granules and expandable polypropylene foam granules in any ratio. The strength and insulation property of the composite autoclaved aerated concrete self-insulation building block can be simultaneously ensured; the insulation property of the composite autoclaved aerated concrete self-insulation building block achieves the requirement of 65% for building energy conservation; and the weight of the composite autoclaved aerated concrete self-insulation building block is lowered.
Description
Technical field
The present invention relates to a kind of compound steam-pressing aero-concrete heat insulation building block.
Background technology
Autoclave aerated concrete building block adds aluminium powder in the batching with calcareous material (as cement, lime) and siliceous material (as sand, flyash, slag) to make air entraining agent, through the stirring that adds water, casting, expansion of getting angry, precuring cutting, then through the porous silicate building block of autoclave curing.
Autoclave aerated concrete building block has been widely applied in building operation, is the main raw of building masonry wall, and particularly the fast development of domestic real estate cause in recent years, makes the demand of autoclave aerated concrete building block greatly increase.
At present, along with national building energy conservation requires to bring up to 65 percent from 50 percent, existing steam-pressing aero-concrete stripping and slicing production technology has not reached the requirement of wall self-insulation.
And in prior art, autoclave aerated concrete building block is the aftershaping that first foams, the pore opening of formation uneven, easy broken wall string hole, resistance to air loss are very poor, therefore lead and there is from it defect that intensity is low, insulating efficiency is poor.
Summary of the invention
The object of this invention is to provide a kind of compound steam-pressing aero-concrete heat insulation building block.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of compound steam-pressing aero-concrete heat insulation building block, its feed composition comprises the mixture of one or more any proportionings in Expandable Polystyrene (EPS) foam particle, expandability polyethylene particle or expandability polyvinyl chloride foam particle.
Applicant finds, by adding of above-mentioned foam particle, while compound other performances of steam-pressing aero-concrete heat insulation building block of guarantee, significantly can reduce thermal conductivity, strengthen its heat retaining property, and can reduce product weight simultaneously.
In order to reduce the heat-insulating property of compound steam-pressing aero-concrete heat insulation building block further, above-mentioned expanded particle is preferably Expandable Polystyrene (EPS) foam particle.
Applicant finds, because adding of Expandable Polystyrene (EPS) can make compound steam-pressing aero-concrete heat insulation building block inside form hollow sphere that is even, airtight, low pressure, the hollow sphere of low pressure is formed in steam-cured process after block forming; Because the present invention is that low pressure spheroid is closed in first shaping rear formation, therefore gained hollow sphere size is even, complete, airtight and can form low pressure environment in spheroid, thus gained building block is had intensity is high, insulating efficiency is good advantage; Simultaneously because expanded particle size used is controlled, therefore close low pressure spheroid size controlled, thus control the intensity of building block and the object of heat-insulating property by regulating the size of expanded particle to reach.
Better take into account in order to the intensity and heat-insulating property that make compound steam-pressing aero-concrete heat insulation building block have, the volumetric usage of described Expandable Polystyrene (EPS) foam particle is the 1-40% of gained compound steam-pressing aero-concrete heat insulation building block volume, preferred 10-20%.
For improving the heat-insulating property of compound steam-pressing aero-concrete heat insulation building block, described Expandable Polystyrene (EPS) foam particle is spherical, and sphere diameter is 1-5mm, and be preferably spherical shape, sphere diameter is 1-2mm.Foam particle of the present invention can be bought ready-made, also first can buy expanded particle then oneself foaming.Foam process is with reference to prior art.
In order to improve epistasis energy morning of high compound steam-pressing aero-concrete heat insulation building block, its feed composition also comprises Sodium sulfate anhydrous.min(99).
The feed composition of compound steam-pressing aero-concrete heat insulation building block, except Expandable Polystyrene (EPS), comprising: siliceous material 60-70 part, calcareous material 20-30 part, aluminium powder 0.03-0.08 part, gypsum 2-5 part, Sodium sulfate anhydrous.min(99) 3-5 part, and described number is mass fraction.
Above-mentioned compound steam-pressing aero-concrete heat insulation building block, due to its high intensity and low thermal conductivity, therefore can be used as warming plate, is attached on wall.
Above-mentioned compound steam-pressing aero-concrete heat insulation building block is when as warming plate, and its thickness is 30-80mm, preferred 40mm.
Above-mentioned compound steam-pressing aero-concrete heat insulation building block, when as warming plate, not only has excellent heat-insulating property, and work-ing life is with the work-ing life of buildings, efficiently solves the defect that the composite insulation boards life-span in prior art is not more than 25 years.
The preparation method of the compound steam-pressing aero-concrete heat insulation building block of the present invention is with reference to prior art.
The technology that the present invention is not particularly limited is prior art.
The compound steam-pressing aero-concrete heat insulation building block of the present invention, can ensure intensity and the heat-insulating property of building block simultaneously, and when dry density rank is B07, while proof strength A5.0, thermal conductivity can drop to less than 0.13; When dry density rank is B06, while proof strength A3.5, thermal conductivity can drop to less than 0.11; When dry density rank is B05, while proof strength A2.5, thermal conductivity can drop to less than 0.09; When dry density rank is B04, while proof strength A2.0, thermal conductivity can drop to less than 0.07, when dry density rank is BO3, while proof strength A1.0, thermal conductivity can drop to less than 0.06, and the present invention's compound steam-pressing aero-concrete heat insulation building block heat-insulating property reaches building energy conservation 65% requirement.The present invention also reduces the weight of compound steam-pressing aero-concrete heat insulation building block simultaneously, work-ing life same Building life cycle, and gained building block of the present invention reaches national A level fire-protection standard.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.
In each example, fire resistance is evaluated with reference to " material of construction non-combustibility test method " GB/T5464-1999; Other are with reference to " autoclave aerated concrete building block national standard ".
In each example, flyash is purchased from Jiangsu Hua Yuan Group Co., Ltd, former ash; Lime is purchased from Gao Zi town, Dantu District, Zhengjiang City Ming Song building materials business department; Cement is purchased from Jiangsu He Lin Cement Co., Ltd, silicate cement (425); Aluminium powder is purchased from the air-entrained concrete building block aluminium powder cream of good hundred million building material factories in city east township of Huaian district; Gypsum is the dehydrated gyp-purchased from Jiangsu Taibai Group Co., Ltd.; Sodium sulfate anhydrous.min(99) is purchased from Shanghai Fu Gui Trade Co., Ltd.; Expandable Polystyrene (EPS) is purchased from the Expandable Polystyrene (EPS) EPS--P-SA of Jiangsu Chengda Petrochemical Industrial Co., Ltd, and foaming is to the foam particle of particle diameter needed for each embodiment as required; Expandability polyethylene, expandability polyvinyl chloride are purchased from bubble wrap factory of Changchun University, and the foam particle of particle diameter needed for foaming to each embodiment as required, quartz sand: Fengyang County, Anhui Province Huang Shi mining industry company limited, in embodiment, flyash can substitute with quartz sand.
Table 1 is the correspondence table of the dry density rank of compound steam-pressing aero-concrete heat insulation building block in prior art, intensity rank and thermal conductivity.
Table 1
As can be seen from Table 1 in prior art, when steam-pressing aero-concrete stripping and slicing intensity is up to state standards, its heat-insulating property does not far reach building energy conservation 65% requirement; When its heat-insulating property reach national building energy conservation 65% require time, its intensity does not far reach national standard.
In each example, thermal conductivity unit is W/ (mK), and preparation method all uses prior art.
Embodiment 1 and comparative example 1
Preparation dry density rank is the compound steam-pressing aero-concrete heat insulation building block of B06: embodiment 1 and comparative example 1
Feed composition and performance evaluation as shown in table 2.
Table 2
Embodiment 2,3 and comparative example 2
Preparation dry density rank is the compound steam-pressing aero-concrete heat insulation building block of B04: feed composition and the performance evaluation of embodiment 2,3 and comparative example 2 are as shown in table 3.
Table 3
Above-mentioned comparative example 2 and the compound steam-pressing aero-concrete heat insulation building block of embodiment 3 gained have mould phenomenon of collapsing; The compound steam-pressing aero-concrete heat insulation building block of embodiment 2 gained is without mould phenomenon of collapsing.
Embodiment 4-7, comparative example 3
Preparation dry density rank is the compound steam-pressing aero-concrete heat insulation building block of B07: embodiment 4-7 feed composition and performance evaluation as shown in table 4.
Table 4
Embodiment 8-11
The compound steam-pressing aero-concrete heat insulation building block that preparation dry density rank is B07: embodiment 8-12 feed composition and performance evaluation are respectively as shown in table 5-9.
Table 5
Table 6
Table 7
Table 8
Above-described embodiment 11 is compared with embodiment 8, and cutting difficulty increases.
With the compound steam-pressing aero-concrete heat insulation building block of the various embodiments described above gained as warming plate, thickness is 40mm, not only has good heat-insulating property, and work-ing life is with the life-span of buildings.Above-mentioned warming plate is compared with cement heat preserving plate of the prior art, has the advantage that intensity is high; Same composite insulation boards, is namely compared with the warming plate of the compound of inorganic materials by the organic materials that glue bonds, and not only preparation technology is simple, with low cost, good heat insulating, and has the life-span identical with buildings, and the life-span of composite insulation boards is not more than 25 years.
The bound value of each data cited by the present invention, can realize the present invention, not enumerate embodiment at this.
Claims (6)
1. a compound steam-pressing aero-concrete heat insulation building block, is characterized in that: its feed composition comprises the mixture of one or more any proportionings in Expandable Polystyrene (EPS) foam particle, expandability polyethylene particle or expandability polyvinyl chloride foam particle; The volumetric usage of Expandable Polystyrene (EPS) foam particle, expandability polyethylene particle or expandability polyvinyl chloride foam particle is the 5-40% of gained compound steam-pressing aero-concrete heat insulation building block volume; Expandable Polystyrene (EPS) foam particle, expandability polyethylene particle or expandability polyvinyl chloride foam particle are spherical, and sphere diameter is 1-5mm;
Its feed composition also comprises: siliceous material 60-70 part, calcareous material 20-30 part, aluminium powder 0.03-0.08 part, gypsum 2-5 part, Sodium sulfate anhydrous.min(99) 3-5 part, and described number is mass fraction.
2. compound steam-pressing aero-concrete heat insulation building block as claimed in claim 1, is characterized in that: its feed composition comprises Expandable Polystyrene (EPS) foam particle.
3. compound steam-pressing aero-concrete heat insulation building block as claimed in claim 2, is characterized in that: the volumetric usage of described Expandable Polystyrene (EPS) foam particle is the 10-20% of gained compound steam-pressing aero-concrete heat insulation building block volume.
4. compound steam-pressing aero-concrete heat insulation building block as claimed in claim 2, is characterized in that: the sphere diameter of described Expandable Polystyrene (EPS) foam particle is 1-2mm.
5. the compound steam-pressing aero-concrete heat insulation building block described in claim 1-4 any one is as the application of warming plate.
6. compound steam-pressing aero-concrete heat insulation building block as claimed in claim 5 is as the application of warming plate, it is characterized in that: the thickness of described warming plate is 30-80mm.
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| CN201310032341.2A CN103058705B (en) | 2013-01-28 | 2013-01-28 | Composite autoclaved aerated concrete self-insulation building block |
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| CN201310032341.2A CN103058705B (en) | 2013-01-28 | 2013-01-28 | Composite autoclaved aerated concrete self-insulation building block |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105218047A (en) * | 2015-08-30 | 2016-01-06 | 常州市鼎日环保科技有限公司 | A kind of preparation method of high strength foam concrete building block |
| CN109879652B (en) * | 2018-08-06 | 2020-12-29 | 上海圣奎新型建材有限公司 | Polystyrene-containing raw material composition and heat-insulation board |
| CN109053220A (en) * | 2018-10-18 | 2018-12-21 | 铜陵丰泽建材科技有限公司 | A kind of preparation method of high-strength autoclaved aerated type concrete segment |
| KR20210109602A (en) * | 2019-01-02 | 2021-09-06 | 상하이 성쿠이 프로덕츠. 코., 엘티디 | Insulating plate raw material composition, insulating plate and manufacturing process thereof |
| CN109879654B (en) * | 2019-01-02 | 2020-08-11 | 上海圣奎塑业有限公司 | Insulation board raw material composition and insulation board |
| CN111285657B (en) * | 2020-02-10 | 2022-11-08 | 上海圣奎塑业有限公司 | Thermal insulation wall material and manufacturing process thereof |
| EP4105190A4 (en) * | 2020-02-10 | 2023-08-23 | Shanghai Shengkui Products Co., Ltd | Fire-resistant and thermal insulation material and preparation process therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1966454A (en) * | 2006-11-07 | 2007-05-23 | 河北越洋新型保温建材有限公司 | Steamed pressurized ash coal 300 volume density flame-endurable heat-insulating air-added concrete building block and its production method |
| CN101792292A (en) * | 2010-03-29 | 2010-08-04 | 南京大地建设集团有限责任公司 | Lightweight, high-strength and super-freezing and thawing resistant cement culture stone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296930A (en) * | 1999-11-22 | 2001-05-30 | 同济大学 | Light polystyrene concrete |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966454A (en) * | 2006-11-07 | 2007-05-23 | 河北越洋新型保温建材有限公司 | Steamed pressurized ash coal 300 volume density flame-endurable heat-insulating air-added concrete building block and its production method |
| CN101792292A (en) * | 2010-03-29 | 2010-08-04 | 南京大地建设集团有限责任公司 | Lightweight, high-strength and super-freezing and thawing resistant cement culture stone |
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