CN102452124A - Method for preparing gypsum air-entrapping building block by adopting semi-hydrated gypsum - Google Patents
Method for preparing gypsum air-entrapping building block by adopting semi-hydrated gypsum Download PDFInfo
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- CN102452124A CN102452124A CN2011100322834A CN201110032283A CN102452124A CN 102452124 A CN102452124 A CN 102452124A CN 2011100322834 A CN2011100322834 A CN 2011100322834A CN 201110032283 A CN201110032283 A CN 201110032283A CN 102452124 A CN102452124 A CN 102452124A
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Abstract
The invention discloses a method for preparing a gypsum air-entrapping building block by adopting semi-hydrated gypsum. The method comprises the following steps of: processing semi-hydrated gypsum by adopting industrial secondary product gypsum, weighing 50-95 parts by weight of semi-hydrated gypsum processed by adopting the industrial secondary product gypsum, 5-50 parts by weight of basic material, 0.0006-0.0045 part by weight of aluminum powder and 0.0005-0.0045 part by weight of gypsum retarder as raw materials, mixing the raw materials together, adding 50-80 parts by weight of water, stirring to be uniform and then moulding into the required building block shape, and then carrying out natural curing on the moulded building block, thus the gypsum air-entrapping building block is prepared. The method disclosed by the invention has the advantages that the industrial secondary product gypsum is effectively utilized as main raw material and waste material is changed into things of value and also has the advantages of simple production process and low production cost, and the product is light in weight and has the functions of energy conversation, thermal insulation and sound insulation. Besides, when the method disclosed by the invention is popularized and applied, pollution of waste to the environment can be reduced, exhaustive exploitation on limited resource can be avoided, and discharge of industrial waste also can be reduced.
Description
Technical field
the present invention relates to a kind of method that adopts semi-hydrated gypsum to prepare the gypsum aerated-block; Particularly a kind of semi-hydrated gypsum that adopts the industry byproduct gypsum to process is the method for feedstock production gypsum aerated-block, belongs to building energy conservation, insulation blocks manufacture technology field.
Background technology
The semi-hydrated gypsum of
industry byproduct gypsum processing is as a kind of airsetting property Binder Materials, and its plastering of processing is because to have unit weight little, in light weight, and the characteristics of good effect of heat insulation are widely used in the architectural engineering.High speed development along with China's economic construction; Skyscraper rolls up; Building structure is to framework and the development of shear wall form, and China has higher requirement to materials for wall to the raising of environmental protection and energy-conservation requirement in addition; The function of materials for wall is gradually to going along with sb. to guard him and energy-conservation, insulation transforms, and the conventional gypsum goods since unit weight at 1000～1300kg/m 3 About, and cost of manufacture is higher, can not adapt to demands of social development.At present to unit weight at 500～800kg/m 3 The demand of plastering increase greatly, can not satisfy the needs that reality is used but existing employing gypsum prepares the method for gypsum block.
Summary of the invention
the objective of the invention is: provide that a kind of manufacture craft is simple, cost of manufacture is lower, product unit weight is less, product quality better, and the semi-hydrated gypsum that can effectively utilize the processing of industry byproduct gypsum prepare the method for gypsum aerated-block for the employing semi-hydrated gypsum of raw material, to overcome the deficiency of prior art.
technical scheme of the present invention is achieved in that a kind of method that adopts semi-hydrated gypsum to prepare the gypsum aerated-block of the present invention; Comprise and adopt industry byproduct gypsum processing semi-hydrated gypsum; Get 0.0006～0.0045 part of 5～50 parts of 50～95 parts of semi-hydrated gypsums, basic matterials, the aluminium powder, the calcium sulphate retarder that adopt the industry byproduct gypsum to process by weight and be raw material for 0.0005～0.0045 part; Each raw material is mixed and adds 50～80 parts of water aftershaping that stirs by weight is required blocks shape, and the building block with moulding can prepare the gypsum aerated-block through natural curing then.
above-mentioned basic matterial is a calcium hydroxide, and the specific area of said basic matterial is 300～400 ㎡/kg.
The specific area of the semi-hydrated gypsum of the employing industry byproduct gypsum processing that
are above-mentioned is 300～400 ㎡/kg.
above-mentioned calcium sulphate retarder is a citric acid.
are owing to adopted technique scheme; The present invention compared with prior art; The present invention not only has and can effectively utilize the industry byproduct gypsum to be primary raw material, the advantage that turns waste into wealth, but also have that manufacture craft is simple, advantages such as low preparation cost, product lightweight, energy-conservation, insulation, sound insulation.In addition, of the present invention applying can alleviate the pollution of discarded object to environment, avoids the exhaustive exploitation of limited resources, can reduce the trade waste discharging again.Therefore, the present invention has also realized practicing thrift the purpose of ploughing, reducing discharging, energy savings; And filled up existing industry byproduct gypsum and produced the technological blank of gypsum aerated-block.
The specific embodiment
Through embodiment the present invention is done further detailed description below
.
Embodiments of the invention 1:
Prepare burden by table 1,
Table 1 (by weight)
| Numbering | Semi-hydrated gypsum | Calcium hydroxide | Aluminium powder | Citric acid | Water |
| 1 | 90 | 10 | 0.004 | 0.002 | 61 |
mix each raw material of table 1 and water and stir and by after the required blocks shape moulding, the building block of moulding is carried out natural curing through conventional method can prepare gypsum aerated-block of the present invention.The intensity detection result of resulting gypsum aerated-block product sees shown in the table 2:
Table 2 intensity detection
Embodiments of the invention 2:
Prepare burden by table 3,
Table 3 (by weight)
| Numbering | Desulfurated plaster | Calcium hydroxide | Aluminium powder | Citric acid | Water |
| 1 | 88 | 12 | 0.004 | 0.002 | 65 |
mix each raw material of table 3 and water and stir and by after the required blocks shape moulding, the building block of moulding is carried out natural curing through conventional method can prepare gypsum aerated-block of the present invention.The intensity detection result of resulting gypsum aerated-block product sees shown in the table 4.
Table semi-finals degree detects
semi-hydrated gypsum in the above-described embodiments is the semi-hydrated gypsum that adopts the industry byproduct gypsum and obtain by conventional method processing; This semi-hydrated gypsum is a desulfurated plaster, and the calcium hydroxide in the above-mentioned table, aluminium powder, citric acid all can directly adopt the finished product of selling on the market.
can be found out through the foregoing description; When adopting method of the present invention to produce product, can suitably adjust the consumption of each raw material in the prescription and add according to the needs that use and to obtain the product that needed different unit weight, strength grade require after the corresponding water yield mixes.
Claims (4)
1. method that adopts semi-hydrated gypsum to prepare the gypsum aerated-block; Comprise and adopt industry byproduct gypsum processing semi-hydrated gypsum; It is characterized in that: get 0.0006～0.0045 part of 5～50 parts of 50～95 parts of semi-hydrated gypsums, basic matterials, the aluminium powder, the calcium sulphate retarder that adopt the industry byproduct gypsum to process by weight and be raw material for 0.0005～0.0045 part; Each raw material is mixed and adds 50～80 parts of water aftershaping that stirs by weight is required blocks shape, and the building block with moulding can prepare the gypsum aerated-block through natural curing then.
2. employing semi-hydrated gypsum according to claim 1 prepares the method for gypsum aerated-block, it is characterized in that: described basic matterial is a calcium hydroxide, and the specific area of said basic matterial is 300～400 ㎡/kg.
3. employing semi-hydrated gypsum according to claim 1 prepares the method for gypsum aerated-block, it is characterized in that: the specific area of the semi-hydrated gypsum of described employing industry byproduct gypsum processing is 300～400 ㎡/kg.
4. employing semi-hydrated gypsum according to claim 1 prepares the method for gypsum aerated-block, it is characterized in that: described calcium sulphate retarder is a citric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100322834A CN102452124A (en) | 2011-01-30 | 2011-01-30 | Method for preparing gypsum air-entrapping building block by adopting semi-hydrated gypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100322834A CN102452124A (en) | 2011-01-30 | 2011-01-30 | Method for preparing gypsum air-entrapping building block by adopting semi-hydrated gypsum |
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| Publication Number | Publication Date |
|---|---|
| CN102452124A true CN102452124A (en) | 2012-05-16 |
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| CN2011100322834A Pending CN102452124A (en) | 2011-01-30 | 2011-01-30 | Method for preparing gypsum air-entrapping building block by adopting semi-hydrated gypsum |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051719A (en) * | 1990-05-16 | 1991-05-29 | 云南省建筑材料科学研究设计院 | A kind of new phospho-gypsum cementing agent and production method thereof and application |
| CN1112183A (en) * | 1995-04-07 | 1995-11-22 | 余鹏程 | Plaster building block and its mfg. method |
| CN1448254A (en) * | 2002-04-03 | 2003-10-15 | 刘勇军 | Process of making block using plaster as main raw material |
| CN101830679A (en) * | 2009-03-13 | 2010-09-15 | 上海晋马建材有限公司 | Roasting-free desulfurized gypsum, phosphorous gypsum, preparation of high-intensity, waterproof composite cementitious material |
-
2011
- 2011-01-30 CN CN2011100322834A patent/CN102452124A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051719A (en) * | 1990-05-16 | 1991-05-29 | 云南省建筑材料科学研究设计院 | A kind of new phospho-gypsum cementing agent and production method thereof and application |
| CN1112183A (en) * | 1995-04-07 | 1995-11-22 | 余鹏程 | Plaster building block and its mfg. method |
| CN1448254A (en) * | 2002-04-03 | 2003-10-15 | 刘勇军 | Process of making block using plaster as main raw material |
| CN101830679A (en) * | 2009-03-13 | 2010-09-15 | 上海晋马建材有限公司 | Roasting-free desulfurized gypsum, phosphorous gypsum, preparation of high-intensity, waterproof composite cementitious material |
Non-Patent Citations (1)
| Title |
|---|
| 李方等: "复合缓凝剂在废渣石膏加气砌块制作中的作用", 《新型建筑材料》, no. 10, 20 October 2000 (2000-10-20) * |
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Application publication date: 20120516 |