CN101725197A - Method for on-site casting molding of gypsum internal partition wall - Google Patents
Method for on-site casting molding of gypsum internal partition wall Download PDFInfo
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- CN101725197A CN101725197A CN200910117570A CN200910117570A CN101725197A CN 101725197 A CN101725197 A CN 101725197A CN 200910117570 A CN200910117570 A CN 200910117570A CN 200910117570 A CN200910117570 A CN 200910117570A CN 101725197 A CN101725197 A CN 101725197A
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- gypsum
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Abstract
The invention relates to a method for on-site casting molding of a gypsum internal partition wall, which comprises the following steps: (1) modifying building gypsum powder, controlling the initial setting time of the gypsum powder to between 20 and 25 minutes and controlling the final setting time of the gypsum powder to between 25 minutes and 30 minutes, and before construction, testing two working parameters of the water consumption for normal consistency and the setting time of the modified building gypsum powder; (2) splicing templates at a position needing walling in a building according to the size and thickness of a wall; (3) calculating water consumption for pulping according to the water consumption for the normal consistency; (4) orderly conveying the water consumption and the modified building gypsum powder into a pulping system for manually-controlled pulping to obtain a pulp; (5) pumping and casting the pulp into a template cavity which is well arranged until the template cavity is filled with the pulp; and (6) from the time when casting is stopped on 25 to 30 minutes, de-molding to obtain the product. The wall cast-molded by the method has the characteristics of good smoothness, no defects such as joint and gap and the like, simple process and low production cost.
Description
Technical field
The present invention relates to a kind of method of body of wall moulding, relate in particular to a kind of method of on-site casting molding of gypsum internal partition wall.
Background technology
Building materials of gypsum has lightweight, high-strength, advantage such as energy consumption is low, the hardenite dimensionally stable is good, harmless, is the green energy conservation constructional materials of praising highly development in the world, therefore uses very general in many countries and regions.In recent years, along with the adjustment of traditional materials for wall structure and the rise of building energy conservation, the building materials of gypsum of China had been obtained significant progress.
The form of gypsum wall material mainly contains hollow gypsum batten and hollow plaster block at present, is meeting the market requirement, and its specifications and models also have varied.Usually generally to experience " land plaster being transported to wallboard manufacture factory; under certain process system, make gypsum wallboard or gypsum block; through 20 days air-dry airing; be transported to the building site; handling is to the job site; manually be mounted to wall and butt joint is handled " from land plaster to the finished product partition wall, during expend great amount of manpower, time and material.Facts have proved that traditional one-tenth wall mode has not only delayed programming, and the piece cracking phenomena can appear in body of wall, the bad plaster leveling that also needs of wall leveling degree, operation is quite complicated.
Summary of the invention
Technical problem to be solved by this invention provides the method for the on-site casting molding of gypsum internal partition wall that a kind of operation is simple, degree of plainness for wall surface is good.
For addressing the above problem, the method for a kind of on-site casting molding of gypsum internal partition wall of the present invention may further comprise the steps: (1) carries out the modification processing with building gypsum plaster, makes its initial setting time be controlled at 20min～25min, and final setting time is controlled at 25～30min; Before the construction to the consumptive use of water normal consistence of modified building land plaster and time of setting two running parameters test;
(2) in building, need into size and the thickness assembled formwork of the position of wall by body of wall;
(3) consumptive use of water normal consistence of the modified building land plaster of foundation described step (1) gained calculates the slurrying water supply volume: slurrying water supply volume=modified building land plaster quality * consumptive use of water normal consistence;
(4) successively the modified building land plaster of the water supply volume of described step (3) gained, described step (1) gained is sent into pulping system and carries out Artificial Control slurrying after, obtain slip;
(5) described step (4) finish mix stock pump sent be poured in the mounted template chamber, until water fill with die cavity till;
(6) pick up counting from stopping cast, continue 25～30min, the demoulding gets final product then.
The modification of the building gypsum plaster in the described step (1) is handled and is meant in building gypsum plaster by 0.5 of its quality～protein-based calcium sulphate retarder of 0.8 ‰ interpolations.
Between the template in the described step (2) and the seam between template and the beam column seal by gas-flow closure band inflation.
The present invention compared with prior art has the following advantages:
1, the present invention utilizes gypsum material fast solidifying, drying not to produce advantages such as shrinkage strain and hardenite dimensional stability be good, directly at the construction field (site) the modified building land plaster is mixed with water to stir and make slurry, pumping pours into gypsum wall, not only simplified working procedure, shortened the cycle, and wall surface levelling is good, does not need plaster leveling promptly can carry out wall decoration.
2, cast-in-situ wall of the present invention is compared with prefabricated panel, and the size of cast-in-situ wall area and the thickness of body of wall can be adjustable flexibly according to Construction Party's demand; Especially can pour into a mould thickness and be the above body of wall of 150mm, and thickness to be the body of wall of 150mm be that prefabricated panel is difficult to finish carrying and install.
3, because the present invention builds the defectives such as good, the no seam of wall leveling slit of moulding, and cast-in-place wall is a solid wall, so the intensity height of strength ratio precast hollow wallboard (technical indicator is referring to table 1: detect according to be JG/T 169-2005 " light lath for building partition wall ")
Table 1: the mechanical property of dry back wall
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Hanging force (1000N hangs 24h) | Free from flaw | Free from flaw | Free from flaw | Free from flaw |
| Shock resistance (30kg sandbag drop 0.5m impacts 5 times) | Free from flaw | Free from flaw | Free from flaw | Free from flaw |
| Hardenite oven dry sample compressive strength (Mpa) | ??8.2 | ??8.3 | ??8.2 | ??8.1 |
| Surface density (kg/m 2) | ??64 | ??76 | ??95 | ??101 |
4, because the present invention compares with traditional wall construction mode, save links such as pre-formed, airing, transportation, installation, jointing and the levelling of wiping one's face, therefore accelerated construction speed.
5, cost of a building is low, remarkable in economical benefits.Adopt cast-in-situ wall of the present invention can save lot of manpower and material resources, the body of wall that the cost of production of finished product wall is made well below alternate manner, every square metre of body of wall can be economized on the use of funds 10～20 yuan.
6, social environment benefit is obvious.In building engineering field; adopt cast-in-situ wall of the present invention can replace interior wall materials such as partition wall hollow lath, sintered building block, concrete block; to significantly promote the consumption of building materials of gypsum thus; for a large amount of industry by-product gypsums has been opened up the new space that utilizes; solved that industry by-product gypsum is difficult to recycle and the environment pollution difficult problem that causes; thereby to accelerating comprehensive utilization of resources, preserving the ecological environment has positive effect.
The specific embodiment
Description of equipment:
1, gypsum slurry mixer: model JL01-08, the ability of producing slurry is 8m
3/ h; The electromagnetic flowmeter that mixer is used at band land plaster hopper, screw feeder batchmeter and metering water.The screw feeder conveying capacity is 6.0 tons/hour of fixed values, and the work range of electromagnetic flowmeter is 5.0m
3/ h, the slurry mixer system is produced by the assembling of the Jingtai imperial chemical building material of gold company.
2, slush pump: PN-10 type, ability to work are 10m
3/ h, manufacturer are the bright equipment of Shandong universe Co., Ltd.
3, template: manufacturer is the Jingtai imperial chemical building material of a gold company.The size of template assembly face and the spacing of template can be regulated, and adapt to the different requirements of metope size and thickness of wall body thus.
The material explanation:
Building gypsum plaster: manufacturer is the Lanzhou imperial building materials of a gold company, and its quality meets the regulation of GB/T9776-2008 " plaster of Paris ".
Protein-based calcium sulphate retarder is that Lanzhou gold wheel building materials company produces.
Embodiment 1 cast-in-site one side size is 4000mm * 2670mm, and thickness is the body of wall of 100mm.
(1) in building gypsum plaster, adds protein-based calcium sulphate retarder and obtain the modified building land plaster by 0.5 ‰ of its quality.
Standby by GB/T 17669.4-1999 " plaster of Paris is starched the mensuration of physical property only " standard before the construction to consumptive use of water normal consistence and two running parameter tests time of setting to the modified building land plaster, its result is initial setting time 20min, final setting time is 25min, and consumptive use of water normal consistence is 0.65.
(2) be the template of 4000mm * 2670mm at the position assembly unit area that is designated as wall, by gas-flow closure band inflation make between the template and template and beam column between seam seal fully, the thickness of die cavity is 100mm.
(3) consumptive use of water normal consistence according to the modified building land plaster of step (1) gained calculates slurrying water supply volume, slurrying water supply volume=modified building land plaster quality * consumptive use of water normal consistence.
Modified building land plaster quality is the conveying capacity of gypsum slurry mixer system screw feeder, and its fixed value is 6.0 tons/hour.
6.0t/h * 0.65=3.90t/h, then slurrying water supply volume is 3.90m
3/ h.
(4) electromagnetic flowmeter on the adjusting gypsum slurry mixer is controlled to be 3.90m with the flow velocity of water
3/ h, and start water pump the gauge water of step (3) gained is injected agitated kettle continuously, restart the agitated kettle stirring rotator, start screw feeder then the modified building land plaster is delivered to agitated kettle, the gypsum slurry that has normal consistency this moment flows into material-storage jar from the agitated kettle discharge port.This slurrying is the continuous operation process.
(5) bin stock is irritated in step (4) finish mix slurry be poured in the mounted template chamber with the slush pump pumping, until water fill with die cavity till.Because slip has certain pressure, can not stay the die cavity that is full of at dead angle.
(6) pick up counting from stopping cast, wait for that 25min begins the demoulding after gypsum reaches final set, the body of wall moulding finishes.
Embodiment 2 cast-in-sites one side size is 4000mm * 2670mm, and thickness is the body of wall of 120mm.
(1) in building gypsum plaster, adds protein-based calcium sulphate retarder and obtain the modified building land plaster by 0.6 ‰ of its quality.
Standby by GB/T 17669.4-1999 " plaster of Paris is starched the mensuration of physical property only " standard before the construction to consumptive use of water normal consistence and two running parameter tests time of setting to the modified building land plaster, its result is initial setting time 22min, final setting time is 27min, and consumptive use of water normal consistence is 0.60.
(2) be the template of 4000mm * 2670mm at the position assembly unit area that is designated as wall, by gas-flow closure band inflation make between the template and template and beam column between seam seal fully, the thickness of die cavity is 120mm.
(3) consumptive use of water normal consistence according to the modified building land plaster of step (1) gained calculates slurrying water supply volume, slurrying water supply volume=modified building land plaster quality * consumptive use of water normal consistence.
Modified building land plaster quality is the conveying capacity of gypsum slurry mixer system screw feeder, and its fixed value is 6.0 tons/hour.
6.0t/h * 0.60=3.60t/h, then slurrying water supply volume is 3.60m
3/ h.
(4) electromagnetic flowmeter on the adjusting gypsum slurry mixer is controlled to be 3.60m with the flow velocity of water
3/ h, and start water pump the gauge water of step (3) gained is injected agitated kettle continuously, restart the agitated kettle stirring rotator, start screw feeder then the modified building land plaster is delivered to agitated kettle, the gypsum slurry that has normal consistency this moment flows into material-storage jar from the agitated kettle discharge port.This slurrying is the continuous operation process.
(5) bin stock is irritated in step (4) finish mix slurry be poured in the mounted template chamber with the slush pump pumping, until water fill with die cavity till.Because slip has certain pressure, can not stay the die cavity that is full of at dead angle.
(6) pick up counting from stopping cast, wait for that 27min begins the demoulding after gypsum reaches final set, the body of wall moulding finishes.
Embodiment 3 cast-in-sites one side size is 5000mm * 2600mm, and thickness is the body of wall of 150mm.
(1) in building gypsum plaster, adds protein-based calcium sulphate retarder and obtain the modified building land plaster by 0.7 ‰ of its quality.
Standby by GB/T 17669.4-1999 " plaster of Paris is starched the mensuration of physical property only " standard before the construction to consumptive use of water normal consistence and two running parameter tests time of setting to the modified building land plaster, its result is initial setting time 24min, final setting time is 28min, and consumptive use of water normal consistence is 0.58.
(2) be the template of 5000mm * 2600mm at the position assembly unit area that is designated as wall, by gas-flow closure band inflation make between the template and template and beam column between seam seal fully, the thickness of die cavity is 150mm.
(3) consumptive use of water normal consistence according to the modified building land plaster of step (1) gained calculates slurrying water supply volume, slurrying water supply volume=modified building land plaster quality * consumptive use of water normal consistence.
Modified building land plaster quality is the conveying capacity of gypsum slurry mixer system screw feeder, and its fixed value is 6.0 tons/hour.
6.0t/h * 0.58=3.48t/h, then slurrying water supply volume is 3.48m
3/ h.
(4) electromagnetic flowmeter on the adjusting gypsum slurry mixer is controlled to be 3.48m with the flow velocity of water
3/ h, and start water pump the gauge water of step (3) gained is injected agitated kettle continuously, restart the agitated kettle stirring rotator, start screw feeder then the modified building land plaster is delivered to agitated kettle, the gypsum slurry that has normal consistency this moment flows into material-storage jar from the agitated kettle discharge port.This slurrying is the continuous operation process.
(5) bin stock is irritated in step (4) finish mix slurry be poured in the mounted template chamber with the slush pump pumping, until water fill with die cavity till.Because slip has certain pressure, can not stay the die cavity that is full of at dead angle.
(6) pick up counting from stopping cast, wait for that 28min begins the demoulding after gypsum reaches final set, the body of wall moulding finishes.
Embodiment 4 cast-in-sites one side size is 5000mm * 2600mm, and thickness is the body of wall of 160mm.
(1) in building gypsum plaster, adds protein-based calcium sulphate retarder and obtain the modified building land plaster by 0.8 ‰ of its quality.
Standby by GB/T 17669.4-1999 " plaster of Paris is starched the mensuration of physical property only " standard before the construction to consumptive use of water normal consistence and two running parameter tests time of setting to the modified building land plaster, its result is initial setting time 25min, final setting time is 30min, and consumptive use of water normal consistence is 0.55.
(2) be the template of 5000mm * 2600mm at the position assembly unit area that is designated as wall, by gas-flow closure band inflation make between the template and template and beam column between seam seal fully, the thickness of die cavity is 160mm.
(3) consumptive use of water normal consistence according to the modified building land plaster of step (1) gained calculates slurrying water supply volume, slurrying water supply volume=modified building land plaster quality * consumptive use of water normal consistence.
Modified building land plaster quality is the conveying capacity of gypsum slurry mixer system screw feeder, and its fixed value is 6.0 tons/hour.
6.0t/h * 0.55=3.30t/h, then slurrying water supply volume is 3.30m
3/ h.
(4) electromagnetic flowmeter on the adjusting gypsum slurry mixer is controlled to be 3.30m with the flow velocity of water
3/ h, and start water pump the gauge water of step (3) gained is injected agitated kettle continuously, restart the agitated kettle stirring rotator, start screw feeder then the modified building land plaster is delivered to agitated kettle, the gypsum slurry that has normal consistency this moment flows into material-storage jar from the agitated kettle discharge port.This slurrying is the continuous operation process.
(5) bin stock is irritated in step (4) finish mix slurry be poured in the mounted template chamber with the slush pump pumping, until water fill with die cavity till.Because slip has certain pressure, can not stay the die cavity that is full of at dead angle.
(6) pick up counting from stopping cast, wait for that 30min begins the demoulding after gypsum reaches final set, the body of wall moulding finishes.
Claims (3)
1. the method for an on-site casting molding of gypsum internal partition wall may further comprise the steps:
(1) building gypsum plaster is carried out modification and handle, make its initial setting time be controlled at 20min～25min, final setting time is controlled at 25～30min; Before the construction to the consumptive use of water normal consistence of modified building land plaster and time of setting two running parameters test,
(2) in building, need into size and the thickness assembled formwork of the position of wall by body of wall;
(3) consumptive use of water normal consistence of the modified building land plaster of foundation described step (1) gained calculates the slurrying water supply volume: slurrying water supply volume=modified building land plaster quality * consumptive use of water normal consistence;
(4) successively the modified building land plaster of the water supply volume of described step (3) gained, described step (1) gained is sent into pulping system and carries out Artificial Control slurrying after, obtain slip;
(5) described step (4) finish mix stock pump sent be poured in the mounted template chamber, until water fill with die cavity till;
(6) pick up counting from stopping cast, continue 25～30min, the demoulding gets final product then.
2. the method for a kind of on-site casting molding of gypsum internal partition wall as claimed in claim 1 is characterized in that: the modification of the building gypsum plaster in the described step (1) is handled and is meant in building gypsum plaster and adds protein-based calcium sulphate retarder by 0.5 of its quality～0.8 ‰.
3. the method for a kind of on-site casting molding of gypsum internal partition wall as claimed in claim 1 is characterized in that: between the template in the described step (2) and the seam between template and the beam column seal by gas-flow closure band inflation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910117570A CN101725197A (en) | 2009-11-06 | 2009-11-06 | Method for on-site casting molding of gypsum internal partition wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910117570A CN101725197A (en) | 2009-11-06 | 2009-11-06 | Method for on-site casting molding of gypsum internal partition wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101725197A true CN101725197A (en) | 2010-06-09 |
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ID=42446691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910117570A Pending CN101725197A (en) | 2009-11-06 | 2009-11-06 | Method for on-site casting molding of gypsum internal partition wall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839818A (en) * | 2011-06-21 | 2012-12-26 | 无锡市现代钢结构工程有限公司 | Cast-in-place gypsum wall and construction method thereof |
| CN103276837A (en) * | 2013-06-22 | 2013-09-04 | 张海冰 | Method for on-site wall pouring without form removal |
| CN103953136A (en) * | 2013-09-23 | 2014-07-30 | 夏榆凌 | Method and device for manufacturing foamed plaster block cast-in-situ wall |
| CN111309061A (en) * | 2020-02-25 | 2020-06-19 | 北新集团建材股份有限公司 | Gypsum slurry consistency adjusting and controlling method and consistency detecting device |
-
2009
- 2009-11-06 CN CN200910117570A patent/CN101725197A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839818A (en) * | 2011-06-21 | 2012-12-26 | 无锡市现代钢结构工程有限公司 | Cast-in-place gypsum wall and construction method thereof |
| CN103276837A (en) * | 2013-06-22 | 2013-09-04 | 张海冰 | Method for on-site wall pouring without form removal |
| CN103953136A (en) * | 2013-09-23 | 2014-07-30 | 夏榆凌 | Method and device for manufacturing foamed plaster block cast-in-situ wall |
| CN111309061A (en) * | 2020-02-25 | 2020-06-19 | 北新集团建材股份有限公司 | Gypsum slurry consistency adjusting and controlling method and consistency detecting device |
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Open date: 20100609 |