CN104441231A - Preparation method of fiber-reinforced desulfurized gypsum hollow large board - Google Patents
Preparation method of fiber-reinforced desulfurized gypsum hollow large board Download PDFInfo
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- CN104441231A CN104441231A CN201410567850.XA CN201410567850A CN104441231A CN 104441231 A CN104441231 A CN 104441231A CN 201410567850 A CN201410567850 A CN 201410567850A CN 104441231 A CN104441231 A CN 104441231A
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- layer
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- hollow panel
- fibers reinforced
- desulfurization gypsum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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- Chemical & Material Sciences (AREA)
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- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Panels For Use In Building Construction (AREA)
- Building Environments (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the field of building decoration materials, and particularly relates to a preparation method of a fiber reinforced desulfurized gypsum hollow large board, which comprises the following steps: pouring desulfurized gypsum into a square mould, strickling to form a first gypsum layer, laying the minced first layer of fibers, and compacting; inserting a square inflatable isolation plate core and inflating; spreading a second layer of minced fiber, and compacting; re-inflating the inflatable partition board core; pouring desulfurized gypsum again, leveling to form a second gypsum layer, laying the minced third layer of fiber, rolling the layer of fiber into the desulfurized gypsum, and leveling; and (3) smearing a third desulfurized gypsum layer, deflating the inflatable partition board core after the gypsum layer is hardened, taking out the partition board core from the mold to form a cavity, and demolding, drying and cutting. The hollow large plate has the advantages of smooth outer surface, high mechanical strength, excellent vertical bearing capacity and plane outer bending bearing capacity, convenient construction, light dead weight and low cost, and can be applied to building outer walls.
Description
Technical field
The invention belongs to architectural decoration material field, particularly a kind of preparation method of fibers reinforced desulfurization gypsum hollow panel.
Background technology
Utilize desulfurated plaster to produce gypsum for building and wallboard and meet the needs that China's building energy conservation and materials for wall reform.Desulfurated plaster is utilized to produce gypsum for building and wallboard, except energy-conservation, the Economization on land in producing, the benefit of the social environment aspect brought is the minimizing of the making full use of of refuse, environmental pollution, and the application of gypsum wallboard alleviates building deadweight, enhance the shock resistance of building, compared with solid brick, not only save freight, and the heat preservation and insulation saved masonry mortar, improve construction efficiency, shorten construction period, reduce construction cost, improve building.So, utilize the large plate of power plant desulfurization gypsum producd fibers enhancing desulfurization gypsum hollow to meet national wall and change policy, also adapt to the developing direction in building materials market future simultaneously.
Fibers reinforced desulfurization gypsum hollow panel is a kind of novel wall material, take desulphurization building gypsum as primary raw material, mix appropriate fibre reinforced materials and additive etc., add water stirring, through moulding by casting, sclerosis is loosed core and the production technology such as drying is made the building element with cavity, there is good fire prevention, termite-proof performance, after filling different insulations, heat insulation and sound insulating material in cavity, the requirement of different building to its physical property can be reached.This hollow short taper is applied in building system, both can as building enclosure and other bearing systems, as steel construction, frame structure etc. with the use of, can pour in the cavities again armored concrete composition load-carrying members, establish one's own system, its deadweight is little, quality is light, be beneficial to antidetonation, reduce the requirement to foundation, thus reduce the comprehensive cost of engineering, breach domestic traditional architectural mode, be conducive to advancing the Transformation Development of China building industrialization, housing industrialization and building industry.
In prior art, the compression strength of fibers reinforced desulfurization gypsum hollow panel is inadequate, and outward appearance is smooth not, easily there is crack in plate face, the pores such as honeycomb, shortens the service life of hollow short taper, cannot building system be performed well in, have impact on the quality of whole engineering.
Summary of the invention
The object of this invention is to provide the preparation method of this fibers reinforced desulfurization gypsum hollow panel, the outer surface of the hollow short taper obtained by this preparation method is smooth, and mechanical strength is high, vertical bearing capacity and the outer anti-bending bearing capacity excellence of plane.
Object of the present invention can be achieved through the following technical solutions:
A preparation method for fibers reinforced desulfurization gypsum hollow panel, its step comprises:
(1) by desulfurized gypsum perfused enter in square dies, strike off, form the first gypsic horizon, spread the ground floor fiber of rubbing at the first gypsic horizon surface uniform, then this layer of fiber roll extrusion is entered in desulfurated plaster;
(2) evenly insert square inflation division board core by the first gypsic horizon, and inflate in this inflation division board core, the aeration quantity of the party's shaped inflatable division board in-core is 0.5-2MPa.By inflating inflation division board core, make when watering desulfurated plaster, gypsum glides along inflation division board core surrounding lateral surface, ensure that the formation of cavity, and has saved the preparation time of hollow short taper.
(3) spread the fiber of second layer rubbing at the first gypsic horizon surface uniform, then this layer of fiber roll extrusion is entered in desulfurated plaster;
(4) again inflate toward the square inflation division board in-core in step (3), the aeration quantity of the party's shaped inflatable division board in-core is 1-3MPa; Again inflate inflation division board core, when again watering desulfurated plaster, gypsum glides along inflation division board core surrounding lateral surface, ensure that the formation of cavity, adopts and build layer by layer, add the mechanical strength of hollow short taper.
(5) in square dies, be again poured into desulfurated plaster, strike off, form the second gypsic horizon, spread the third layer fiber of rubbing at the second gypsic horizon surface uniform, then this layer of fiber roll extrusion is entered in desulfurated plaster, floating;
(6) gypsum to be desulfurization spreads third layer desulfurated plaster layer after tentatively condensing, after gypsic horizon sclerosis, inflation division board core is exitted and this division board core is pulled out mould, form cavity, the demoulding, drying, cutting obtain fibers reinforced desulfurization gypsum hollow panel.
Described desulfurated plaster is by the mixture of one-level desulfurized gesso of flue gas, additive and mixing water, and the interpolation weight ratio of this one-level desulfurized gesso of flue gas and additive is 100-250:1; The weight ratio of described one-level desulfurized gesso of flue gas and mixing water is 1-2.5:1.
Described additive is the composition of waterproofing agent, plasticiser and cement, and its weight ratio is 0.2-0.5:5:2-4.
Desulfurated plaster in described fibers reinforced desulfurization gypsum hollow panel and the weight ratio of fiber are 400-500:1.
The length of described fibers reinforced desulfurization gypsum hollow panel is 6 or 12 meters, and height is 3 meters, and thickness is 0.10-0.12 rice, is laid with a cavity every 0.25 meter; Web thickness between described adjacent two cavitys is 90-95mm, and the density of this fibers reinforced desulfurization gypsum hollow panel is 38-42kg/cm
2.Be embedded with fiber in web, the thickness of web is 90-95mm, so both can ensure the intensity of hollow short taper, can strengthen soundproof effect again.
Physical property, the phase composition of desulfurization gypsum powder of the present invention are as shown in table 1:
Table 1
The present invention prepares and adopts fiber as amplified medium, and successively embedding equably three layers of fiber in fibers reinforced desulfurization gypsum hollow panel, intensity strengthens greatly.Described fiber preferably glass fibre, its strength ratio is comparatively large, is easy to get, and the performance of the desulfurization gypsum powder that the present invention adopts is as shown in table 1, and suitable additive and the additional proportion of mixing water, will affect the final performance of fibers reinforced desulfurization gypsum hollow panel.
The invention has the beneficial effects as follows:
1, the outer surface of described fibers reinforced desulfurization gypsum hollow panel is very smooth, flatness≤1.0mm, surperficial without exposed fibers, through crack and burr, pore-free.
2, good, the excellent in mechanical performance of the shock resistance of described fibers reinforced desulfurization gypsum hollow panel, compression strength >=1.5MPa, vertical bearing capacity and the outer bending bearing capacity of plane significantly improve, and soundproof effect, fire resistance are all relatively good; The moisture content of described hollow short taper is rate≤1%, is starkly lower than the moisture content of existing plasterboard.
3, described fibers reinforced desulfurization gypsum hollow panel can be applicable to external wall, easy construction, from heavy and light, reduce the requirement to foundation, thus reduce the comprehensive cost of whole engineering, armored concrete can be coordinated to use, and is a kind of novel energy saving and environment friendly construction material.
4, the preparation method of described fibers reinforced desulfurization gypsum hollow panel is simple, workable, good stability.
Accompanying drawing explanation
Preparation technology's schematic diagram of Fig. 1 fibers reinforced desulfurization gypsum hollow panel of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1:
Raw material: one-level desulfurized gesso of flue gas; Additive (be the composition of waterproofing agent, plasticiser, cement, wherein the weight ratio of waterproofing agent, plasticiser, cement is 0.5:5:4.5); Glass fibre.
Be become desulfurated plaster after the ratio blending of 200:1 by one-level desulfurized gesso of flue gas and additive according to weight ratio, for subsequent use.
Described one-level desulfurized gesso of flue gas material quality is:
Processing step:
Lubricating oil is spread by the flat steel work top scribbling epoxy resin.Overhead winch by desulfurized gypsum perfused enter with in the square dies of cavity, and desulfurated plaster is floating, form the first gypsic horizon; Spread the ground floor glass fibre of rubbing at the first gypsic horizon surface uniform, then with net formula roller, this layer of fiber roll extrusion is entered in desulfurated plaster; In the first gypsic horizon, evenly insert cuboid inflation division board core, and inflate in this inflation division board core, its aeration quantity is 1MPa.
The fiber that the second layer rubs on the first gypsic horizon surface again uniform spreading, then enters in desulfurated plaster with net formula roller by this layer of fiber roll extrusion; Then again inflate at square inflation division board in-core, aeration quantity is that 3MPa is again poured into desulfurated plaster in square dies, repeatedly scrape several times, till surface strikes off, form the second gypsic horizon, spread the third layer fiber of rubbing at the second gypsic horizon surface uniform, then this layer of fiber roll extrusion is entered in desulfurated plaster, floating;
Spread third layer desulfurated plaster layer after gypsum to be desulfurization tentatively condenses, after gypsic horizon sclerosis, inflation division board core exitted and this division board core is pulled out mould, forming cavity, the demoulding, drying, deliver to warehouse for finished product, cutting, obtained fibers reinforced desulfurization gypsum hollow panel.
The length of above-mentioned fibers reinforced desulfurization gypsum hollow panel is 6 or 12 meters, and height is 3 meters, and thickness is 0.10-0.12 rice, is laid with a cavity every 0.25 meter; Web thickness between described adjacent two cavitys is 92mm, and the density of this fibers reinforced desulfurization gypsum hollow panel is 40kg/cm
2.
One-level desulfurized gesso of flue gas in above-mentioned fibers reinforced desulfurization gypsum hollow panel and the weight ratio of fiber are 450:1.
Test result:
1, presentation quality: described fibers reinforced desulfurization gypsum hollow panel surface is without truncation, arrisdefect, seminess, surface is without exposed fibers, burr, and length variation measurement result is ± 2mm, the poor measurement result of diagonal is 4mm, thickness deviation test result is-1mm, be 2.0mm to perverted measurement result.
2, mechanical property: compression strength is 1.55MPa, the outer bending bearing capacity of vertical bearing capacity 162kN/m, plane is 1.7kN 〃 m, anti-folding failing load 7.4kN, bending resistance failing load are greater than 1.5 times of plate weights.
3, physical property: moisture content is 03.18%, water absorption rate is 3.1%, and heat transfer coefficient is 1.528w/ (m2.k).
4, radionuclide: Ra226 is 8.7Bq/kg, Th232 be 6.5Bq/kg, K40 is 249.7Bq/kg, I
rabe 0.0, I
ybe 0.1.
5, harmful substance contents: hydrogen sulfide <0.01mg/kg, hydroxyl sulphur <0.0001mg/kg, carbon disulfide <0.0001mg/kg, sulfur dioxide <0.05mg/kg, elemental sulfur <0.7mg/kg.
Can find out from above-mentioned detection data, the excellent performance of fibers reinforced desulfurization gypsum hollow panel prepared by the present invention, especially compression strength and vertical bearing capacity etc., plate flat appearance, smooth, thermal and insulating performance is effective, and radionuclide detects and shows that radioactivity is safe, the existence of harmful substance can not form injury to health, is also safe.
The above is preferred embodiment of the present invention, but the present invention should not be confined to the content disclosed in this embodiment.The equivalence completed under not departing from spirit disclosed in this invention so every or amendment, all fall into the scope of protection of the invention.
Claims (6)
1. a preparation method for fibers reinforced desulfurization gypsum hollow panel, its step comprises:
(1) by desulfurized gypsum perfused enter in square dies, strike off, form the first gypsic horizon, spread the ground floor fiber of rubbing at the first gypsic horizon surface uniform, then this layer of fiber roll extrusion is entered in desulfurated plaster;
(2) evenly insert square inflation division board core by the first gypsic horizon, and inflate in this inflation division board core;
(3) spread the fiber of second layer rubbing at the first gypsic horizon surface uniform, then this layer of fiber roll extrusion is entered in desulfurated plaster;
(4) again inflate toward the square inflation division board in-core in step (3);
(5) in square dies, be again poured into desulfurated plaster, strike off, form the second gypsic horizon, spread the third layer fiber of rubbing at the second gypsic horizon surface uniform, then this layer of fiber roll extrusion is entered in desulfurated plaster, floating;
(6) gypsum to be desulfurization spreads third layer desulfurated plaster layer after tentatively condensing, after gypsic horizon sclerosis, inflation division board core is exitted and this division board core is pulled out mould, form cavity, the demoulding, drying, cutting obtain fibers reinforced desulfurization gypsum hollow panel.
2. the preparation method of fibers reinforced desulfurization gypsum hollow panel according to claim 1, it is characterized in that: described desulfurated plaster is by the mixture of one-level desulfurized gesso of flue gas, additive and mixing water, the interpolation weight ratio of this one-level desulfurized gesso of flue gas and additive is 100-250:1; The weight ratio of described one-level desulfurized gesso of flue gas and mixing water is 1-2.5:1.
3. the preparation method of fibers reinforced desulfurization gypsum hollow panel according to claim 2, is characterized in that: described additive is the composition of waterproofing agent, plasticiser and cement, and its weight ratio is 0.2-0.5:5:2-4.
4. the preparation method of fibers reinforced desulfurization gypsum hollow panel according to claim 1, is characterized in that: in described step (2), and the aeration quantity of square inflation division board in-core is 0.5-2MPa; In described step (4), the aeration quantity of square inflation division board in-core is 1-3MPa.
5. the preparation method of fibers reinforced desulfurization gypsum hollow panel according to claim 1, is characterized in that: the desulfurated plaster in described fibers reinforced desulfurization gypsum hollow panel and the weight ratio of fiber are 400-500:1.
6. the preparation method of fibers reinforced desulfurization gypsum hollow panel according to claim 1, it is characterized in that: the length of described fibers reinforced desulfurization gypsum hollow panel is 6 or 12 meters, height is 3 meters, and thickness is 0.10-0.12 rice, is laid with a cavity every 0.25 meter; Web thickness between described adjacent two cavitys is 90-95mm, and the density of this fibers reinforced desulfurization gypsum hollow panel is 38-42kg/cm
2.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859226A (en) * | 2017-09-26 | 2018-03-30 | 贵州金三利科技建材有限公司 | A kind of plaster cavity die box forming method |
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| EP0451503A2 (en) * | 1990-04-12 | 1991-10-16 | Redco N.V. | Glass fibre-reinforced gypsum panels and process for their manufacture |
| CN1189470A (en) * | 1996-11-12 | 1998-08-05 | 吉野产业株式会社 | Gypsum-based composite article and method for producing same |
| CN101531026A (en) * | 2009-02-25 | 2009-09-16 | 贵州金三利科技建材有限公司 | Method for preparing plaster evacuated mould |
| WO2009126065A1 (en) * | 2008-04-07 | 2009-10-15 | Pilkin Vitaly Evgenievich | Gypsum wallboard core composition |
| CN101851081A (en) * | 2009-04-03 | 2010-10-06 | 秦永超 | Glass fiber reinforced gypsum product, and preparation method and equipment thereof |
| CN103193446A (en) * | 2013-03-12 | 2013-07-10 | 北京科技大学 | Method for producing waste residue foam concrete and nanopore vacuum plate composite material |
| CN104030722A (en) * | 2014-06-24 | 2014-09-10 | 安徽省神洲建材科技有限公司 | Production technology of aerated concrete block |
-
2014
- 2014-10-23 CN CN201410567850.XA patent/CN104441231B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0451503A2 (en) * | 1990-04-12 | 1991-10-16 | Redco N.V. | Glass fibre-reinforced gypsum panels and process for their manufacture |
| CN1189470A (en) * | 1996-11-12 | 1998-08-05 | 吉野产业株式会社 | Gypsum-based composite article and method for producing same |
| WO2009126065A1 (en) * | 2008-04-07 | 2009-10-15 | Pilkin Vitaly Evgenievich | Gypsum wallboard core composition |
| CN101531026A (en) * | 2009-02-25 | 2009-09-16 | 贵州金三利科技建材有限公司 | Method for preparing plaster evacuated mould |
| CN101851081A (en) * | 2009-04-03 | 2010-10-06 | 秦永超 | Glass fiber reinforced gypsum product, and preparation method and equipment thereof |
| CN103193446A (en) * | 2013-03-12 | 2013-07-10 | 北京科技大学 | Method for producing waste residue foam concrete and nanopore vacuum plate composite material |
| CN104030722A (en) * | 2014-06-24 | 2014-09-10 | 安徽省神洲建材科技有限公司 | Production technology of aerated concrete block |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859226A (en) * | 2017-09-26 | 2018-03-30 | 贵州金三利科技建材有限公司 | A kind of plaster cavity die box forming method |
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Effective date of registration: 20190903 Address after: 524072 Room 107, 108, 109, 110 and 111, Building 12, East District, Baosteel Zhanjiang Iron and Steel Co., Ltd., Dongjian Town, Zhanjiang Economic and Technological Development Zone, Zhanjiang City, Guangdong Province Patentee after: Zhanjiang Baosteel new type building material science and Technology Co Ltd Address before: 201900 Shanghai city Baoshan District Yun Chuan Road No. 5075 Patentee before: Shanghai Baotian Novel Building Materials Co., Ltd. |
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Address after: 524000 rooms 107, 108, 109, 110 and 111, building 12, east area, Baosteel Zhanjiang iron and Steel Co., Ltd., Dongjian Town, Zhanjiang Economic and Technological Development Zone, Zhanjiang City, Guangdong Province Patentee after: Baowu huanke (Zhanjiang) Resources Recycling Co.,Ltd. Address before: 524072 rooms 107, 108, 109, 110 and 111, building 12, east area of Baosteel Zhanjiang iron and Steel Co., Ltd., Dongjian Town, Zhanjiang Economic and Technological Development Zone, Zhanjiang City, Guangdong Province Patentee before: ZHANJIANG BAOSTEEL NEW BUILDING MATERIALS TECHNOLOGY CO.,LTD. |