CN101531026A - Method for preparing plaster evacuated mould - Google Patents
Method for preparing plaster evacuated mould Download PDFInfo
- Publication number
- CN101531026A CN101531026A CN200910102446A CN200910102446A CN101531026A CN 101531026 A CN101531026 A CN 101531026A CN 200910102446 A CN200910102446 A CN 200910102446A CN 200910102446 A CN200910102446 A CN 200910102446A CN 101531026 A CN101531026 A CN 101531026A
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- CN
- China
- Prior art keywords
- mould
- plaster
- evacuated
- evacuated mould
- gypsum
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/4505—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application
- C04B41/4511—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application using temporarily supports, e.g. decalcomania transfers or mould surfaces
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- 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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- 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
- C04B28/142—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 containing synthetic or waste calcium sulfate cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
This invention discloses a method for preparing plaster evacuated mould, including following steps: weighting and mixing the raw material based on that the mass ratio of plaster: inorganic filling material: glass fiber: high efficiency water reducing agent (mass ratio) is 80-90:10-20:3-4:0.5:2.5; weighting water based on the cement water ratio of o.45 to 0.65 by calculating with mass, then pouring the prepared raw materials into a stirring pot, at the same time, opening the stirrer, quickly stirring for 1 to 3 min with the rotating speed of 100 to 300 r/min; coating mineral oil at the four sides and the bottom of the module, then pouring the mixed ground paste into the mould, screeding the upper surface of the plaster evacuated mould, fetching out the concretionary plaster evacuated mould from the module, finally naturally drying the mould. The product prepared by this invention has short time for drying, enlarged delayed coagulation time and can improve the intensity and the hard wearing performance.
Description
Technical field
The present invention relates to the building material field field, relate in particular to a kind of preparing plaster evacuated mould.
Background technology
Current, in China industry and civil buildings, reinforced concrete structure is extensive because of raw material, technology maturation, cheap, very strong vitality is arranged, be still the architecture structure form that is most widely used.In cast-in-situ concrete structure, using the arch without beam technology of gypsum evacuated mould is continue girderless floor, common beam slab, a kind of novel cast-in-place structural system of developing behind rib floor, the prestressing without bondn flat board.Use the construction cost of this technology to save 15% than general reinforced concrete frame, the smooth beam that do not show at the bottom of the floor need not furred ceiling, thereby has saved decoration cost simultaneously; And can effectively reduce geological process from heavy and light, anti-seismic performance is good, and superperformances such as good sound insulation, heat insulation, fire prevention are arranged in addition.Therefore, gypsum evacuated mould can extensively be suitable for all kinds of architectural engineerings, has huge market economy and is worth.
The at present existing evacuated mould patent of producing (CN200710169902.8) is produced the technology " open shutting structural member of the paripheral zone sidewall flanging of an opening of making earlier of evacuated mould as " a kind of preparation method of cavity former component "; Make base plate again, not before the setting and harden, open shutting structural member is fastened on it at it; Form flanging and cast-in-place lower shoe bonding whole then ", this evacuated mould has in light weight, intensity height, characteristics such as simple in structure.Make inconvenience when but this class mould casing component is produced, production efficiency is low, is not easy to streamline production, the cost height.In addition, the material of producing this class mould casing component mainly is a portland cement, and therefore, the evacuated mould of developing a kind of New Building Materials has become urgent need.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming and provide a kind of flash-off time to shorten, slow setting time lengthening, the preparing plaster evacuated mould of intensity and anti-wear performance of improving.
A kind of preparing plaster evacuated mould of the present invention may further comprise the steps:
(1) be gypsum with raw material by mass ratio: inorganic filler: glass fibre: high efficiency water reducing agent (mass ratio)=80～90: 10～20: 3～4: 0.5～2.5 weighing and burden;
(2) by quality ratio, the ratio of mud=0.45～0.65 metering water is poured onto respectively in the agitator tank with above-mentioned confected materials then, starts mixer simultaneously, and rotating speed is 100～300r/min, stirs fast 1～3 minute;
(2) mineral oil is smeared in wall and bottom surface around mould, again mixed slurry is cast in mould, the upper surface of floating gypsum evacuated mould, and the gypsum evacuated mould after solidifying takes out from mould, and last gypsum dries naturally and is finished product.
Above-mentioned preparing plaster evacuated mould, wherein: land plaster is desulfurated plaster or ardealite;
Above-mentioned preparing plaster evacuated mould, wherein: inorganic filler is one or two or more kinds the combination in flyash, portland cement, blast-furnace cinder, the porcelain powder.
Above-mentioned preparing plaster evacuated mould, wherein: high efficiency water reducing agent is lignin water reducer wood sodium, wooden calcium, wooden magnesium, naphthalene water reducer, the combination of one or two or more kinds in the poly carboxylic acid series water reducer.
Above-mentioned preparing plaster evacuated mould, wherein: lubricant is mineral oil, artificial oil or suds.
The present invention compared with prior art, by such scheme as can be known, main material is gypsum (desulfurated plaster or an ardealite), add high efficiency water reducing agent, see it is a kind of high molecular surfactant from chemical constitution, water soluble forms the hydrosol, therefore they cover the semi-hydrated gypsum plane of crystal of land plaster, greatly reduce the solubility of semi-hydrated gypsum in water, the reduction of its solubility certainly will postpone semi-hydrated gypsum crystal aquation hardening process, be that presetting period and final setting time all prolong, provide sufficient space and the time for the dihydrate gypsum growth simultaneously, can form the structure of more fine and close gathering, the ratio of mud when reducing the gypsum mixing, the intensity of sclerosis evacuated mould obviously improves.Inorganic filler all belongs to the sa raw material, it is spiked in the land plaster, when the continuous crystallization of dihydrate gypsum, inorganic filler and dihydrate gypsum crystal adhesion are staggered, the accurate gathering formed the bigger hard solid of cohesive force and adhesion, and the closely knit intensity of plastering hole is improved.Glass fibre has played skeleton function in structure, lubricant makes the easy demoulding of gypsum evacuated mould after the moulding in addition, has reduced because the waste product that stripping operation produces.
The specific embodiment
Embodiment 1
Preparing plaster evacuated mould may further comprise the steps:
(1) presses desulfurated plaster: flyash: glass fibre: sodium lignin sulfonate (mass ratio)=83: 12: 3: 2 weighing and burdens;
(2) press the ratio of mud (mass ratio)=0.52 metering water, be poured onto respectively in the agitator tank with above-mentioned confected materials then, start mixer simultaneously, rotating speed is 200r/min, stirs fast 2 minutes;
(2) mineral oil is smeared in wall and bottom surface around mould, again mixed slurry is cast in mould, the upper surface of floating gypsum evacuated mould, and the gypsum evacuated mould after solidifying takes out from mould, and last gypsum dries naturally and is finished product.
The finished product gypsum evacuated mould after testing, compression strength is 12.1MPa, rupture strength is 3.70MPa.
Embodiment 2
(1) desulfurated plaster: portland cement: glass fibre: alkene maleate copolymer (mass ratio)=81: 14: 3: 2 weighing and burdens;
(2) press the ratio of mud (mass ratio)=0.55 metering water, be poured onto respectively in the agitator tank with above-mentioned confected materials then, start mixer simultaneously, rotating speed is 150r/min, stirs fast 3 minutes;
(2) mineral oil is smeared in wall and bottom surface around mould, again mixed slurry is cast in mould, the upper surface of floating gypsum evacuated mould, and the gypsum evacuated mould after solidifying takes out from mould, and last gypsum dries naturally and is finished product.
The finished product gypsum evacuated mould after testing, compression strength is 11.6MPa, rupture strength is 2.45MPa.
Embodiment 3
(1) presses ardealite: porcelain powder: glass fibre: magnesium lignosulfonate (mass ratio)=85: 10: 3.5: 1.5 weighing and burdens;
(2) press the ratio of mud (mass ratio)=0.49 metering water, be poured onto respectively in the agitator tank with above-mentioned confected materials then, start mixer simultaneously, rotating speed is 200r/min, stirs fast 3 minutes;
(2) artificial oil is smeared in wall and bottom surface around mould, again mixed slurry is cast in mould, the upper surface of floating gypsum evacuated mould, and the gypsum evacuated mould after solidifying takes out from mould, and last gypsum dries naturally and is finished product.
The finished product gypsum evacuated mould after testing, compression strength is 12.3MPa, rupture strength is 3.67MPa.
Embodiment 4
(1) presses ardealite: flyash and portland cement: glass fibre: beta-naphthalenesulfonic-acid salt formaldehyde condensation products (mass ratio)=80: 14: 4: 2 weighing and burdens;
(2) press the ratio of mud (mass ratio)=0.57 metering water, be poured onto respectively in the agitator tank with above-mentioned confected materials then, start mixer simultaneously, rotating speed is 300r/min, stirs fast 1 minute;
(2) suds are smeared in wall and bottom surface around mould, again mixed slurry are cast in mould, the upper surface of floating gypsum evacuated mould, and the gypsum evacuated mould after solidifying takes out from mould, and last gypsum dries naturally and is finished product.
The finished product gypsum evacuated mould after testing, compression strength is 12.7MPa, rupture strength is 2.97MPa.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (5)
1, a kind of preparing plaster evacuated mould may further comprise the steps:
(1) be gypsum with raw material by mass ratio: inorganic filler: glass fibre: high efficiency water reducing agent (mass ratio)=80～90: 10～20: 3～4: 0.5～2.5 weighing and burden;
(2) by quality ratio, the ratio of mud=0.45～0.65 metering water is poured onto respectively in the agitator tank with above-mentioned confected materials then, starts mixer simultaneously, and rotating speed is 100～300r/min, stirs fast 1～3 minute;
(2) mineral oil is smeared in wall and bottom surface around mould, again mixed slurry is cast in mould, the upper surface of floating gypsum evacuated mould, and the gypsum evacuated mould after solidifying takes out from mould, and last gypsum dries naturally and is finished product.
2, preparing plaster evacuated mould as claimed in claim 1, wherein: land plaster is desulfurated plaster or ardealite;
3, preparing plaster evacuated mould as claimed in claim 1 or 2, wherein: inorganic filler is one or two or more kinds the combination in flyash, portland cement, blast-furnace cinder, the porcelain powder.
4, preparing plaster evacuated mould as claimed in claim 3, wherein: high efficiency water reducing agent is lignin water reducer wood sodium, wooden calcium, wooden magnesium, naphthalene water reducer, the combination of one or two or more kinds in the poly carboxylic acid series water reducer.
5, preparing plaster evacuated mould as claimed in claim 4, wherein: lubricant is mineral oil, artificial oil or suds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102446A CN101531026A (en) | 2009-02-25 | 2009-02-25 | Method for preparing plaster evacuated mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102446A CN101531026A (en) | 2009-02-25 | 2009-02-25 | Method for preparing plaster evacuated mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101531026A true CN101531026A (en) | 2009-09-16 |
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ID=41101986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910102446A Pending CN101531026A (en) | 2009-02-25 | 2009-02-25 | Method for preparing plaster evacuated mould |
Country Status (1)
| Country | Link |
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| CN (1) | CN101531026A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613354A (en) * | 2013-12-09 | 2014-03-05 | 贵州中建空间工程科技有限公司 | Gypsum built-in mould |
| CN104441231A (en) * | 2014-10-23 | 2015-03-25 | 上海宝田新型建材有限公司 | Preparation method of fiber-reinforced desulfurized gypsum hollow large board |
| CN104909683A (en) * | 2014-03-13 | 2015-09-16 | 汤锋 | Gypsum cavity segment mold of cast-in-situ concrete open-web sandwich floor system |
| CN104909682A (en) * | 2014-03-13 | 2015-09-16 | 汤锋 | Gypsum cavity segment mold of cast-in-situ concrete open-web sandwich floor system |
| CN106003368A (en) * | 2016-07-01 | 2016-10-12 | 宜兴市凯诚模具有限公司 | Manufacturing method of gypsum female die |
| CN111024502A (en) * | 2019-12-27 | 2020-04-17 | 南通市建筑科学研究院有限公司 | Detection method for tensile property of anti-crack mortar in inorganic lightweight aggregate heat insulation system |
| CN112979263A (en) * | 2021-02-08 | 2021-06-18 | 湖南泰鑫瓷业有限公司 | Strengthening method for grouting type mold |
-
2009
- 2009-02-25 CN CN200910102446A patent/CN101531026A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613354A (en) * | 2013-12-09 | 2014-03-05 | 贵州中建空间工程科技有限公司 | Gypsum built-in mould |
| CN104909683A (en) * | 2014-03-13 | 2015-09-16 | 汤锋 | Gypsum cavity segment mold of cast-in-situ concrete open-web sandwich floor system |
| CN104909682A (en) * | 2014-03-13 | 2015-09-16 | 汤锋 | Gypsum cavity segment mold of cast-in-situ concrete open-web sandwich floor system |
| CN104441231A (en) * | 2014-10-23 | 2015-03-25 | 上海宝田新型建材有限公司 | Preparation method of fiber-reinforced desulfurized gypsum hollow large board |
| CN104441231B (en) * | 2014-10-23 | 2016-08-31 | 上海宝田新型建材有限公司 | Preparation method of fiber-reinforced desulfurized gypsum hollow large board |
| CN106003368A (en) * | 2016-07-01 | 2016-10-12 | 宜兴市凯诚模具有限公司 | Manufacturing method of gypsum female die |
| CN111024502A (en) * | 2019-12-27 | 2020-04-17 | 南通市建筑科学研究院有限公司 | Detection method for tensile property of anti-crack mortar in inorganic lightweight aggregate heat insulation system |
| CN112979263A (en) * | 2021-02-08 | 2021-06-18 | 湖南泰鑫瓷业有限公司 | Strengthening method for grouting type mold |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20090916 |