CN1318196C - Method for maintaining lightweight wall slab made from concrete by autoclave - Google Patents
Method for maintaining lightweight wall slab made from concrete by autoclave Download PDFInfo
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- CN1318196C CN1318196C CNB2004100267697A CN200410026769A CN1318196C CN 1318196 C CN1318196 C CN 1318196C CN B2004100267697 A CNB2004100267697 A CN B2004100267697A CN 200410026769 A CN200410026769 A CN 200410026769A CN 1318196 C CN1318196 C CN 1318196C
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Abstract
The present invention relates to a method for maintaining a concrete lightweight wall plate by an autoclave, which comprises that a lightweight wall plate blank body is arranged in an autoclave for maintenance. Then, the lightweight wall plate blank body is taken out of the autoclave through temperature rise and pressure increase, constant temperature and constant pressure, and temperature drop and pressure reduction to normal temperature and pressure. The process needs nine hours. The period from the forming of the wall plate which is maintained by the autoclave to leaving factories, the wall plate is maintained primarily for one day, is maintained in the steam mode for nine hours, and is placed for one day after leaving the autoclave. The total time is three days. Compared with 35 days for natural maintenance, the three days greatly shorten production period, and thoroughly solves problem of piling fields with large areas. Experiment data proves that the water content of the wall plate which is maintained by the autoclave is one third to one fourth of the water content of the wall plate which is naturally maintained. Because hydration reaction is thorough, installation cracks of the wallboard are avoided. Consequently, the wall plate which is maintained by the autoclave has larger superiority than the wall plate which is naturally maintained.
Description
Technical field
The present invention relates to the maintenance process of concrete light wall panel, specifically be meant a kind of method of still kettle curing concrete Light trabs, this method is applicable to the concrete light wall panel of extrusion modling or moulding by casting.
Background technology
Concrete light wall panel is as a kind of novel wall material, has light weight, intensity height, fast, energy-conserving and environment-protective are installed, characteristics such as civilized construction, has been widely adopted at present, and development prospect is wide.But the defective that concrete light wall panel brings because of natural curing restricts the development of itself.Press regulation and stipulation, the natural curing phase is no less than 35 days.Though concrete light wall panel through 35 days natural curing concrete hydration reaction do not carry out fully, wallboard still has certain moisture content and certain drying shrinkage value.Facts have proved after the wallboard installation of natural curing, because its hydration reaction effect slowly needs a stable period, during this period along with seasonal variations, atmospheric temperature, when humidity has evident difference, wallboard can produce local contraction fissure in the place that seam is installed.Natural curing in 35 days simultaneously needs large-area wallboard to stack the place.Therefore, crack that natural curing brings and stockyard two large problems are restricting the development of wallboard, need to seek new maintaining process method.
Summary of the invention
The method that the purpose of this invention is to provide a kind of still kettle curing concrete Light trabs by the concrete light wall panel base substrate is inserted the method for maintenance in the still kettle, has overcome the quality problems that the existing concrete Light trabs exists.
Method of the present invention comprises following technical scheme:
This method comprises concrete light wall panel by the former maintenance process of expecting that manufactured goods are related, and concrete grammar is that the concrete light wall panel base substrate of making is inserted maintenance in the still kettle.
The technical program also comprises following method
The concrete light wall panel base substrate natural curing of making is moved into maintenance in the still kettle after 1 day.And
The interior concrete light wall panel base substrate of still kettle of packing into goes out still through increasing temperature and pressure, constant temperature and pressure, three processes of decrease temperature and pressure behind normal temperature and pressure.And
Increasing temperature and pressure refers to be warming up to 160-180 ℃ gradually, be boosted to 9-10KG/cm by normal temperature and pressure
2Constant temperature and pressure refers to keep warm 160-180 ℃, pressure 9-10KG/cm
2About 3 hours; Decrease temperature and pressure refers to constant temperature and pressure decrease temperature and pressure gradually after 3 hours, reaches normal temperature and pressure at last, and whole process needs about 9 hours approximately.And
The wallboard base substrate needs placement to re-use in 1 day after going out still.And
Concrete light wall panel is a hollow wall panel.
The present invention has following advantage:
1. improve product quality, saved a large amount of curing times.
2. the saving occupied ground has reduced production cost.
Description of drawings
Fig. 1 is a technological process of production block diagram of the present invention.
Fig. 2 is the concrete light wall panel schematic diagram.
The specific embodiment
As shown in the figure,, comprise concrete light wall panel, specifically be meant the concrete light wall panel base substrate of making is inserted maintenance in the still kettle by the former maintenance process of expecting that manufactured goods are related with still kettle curing concrete Light trabs.
Embodiment (producing the concrete light hollow wall panel): raw materials such as cement, slag, haydite, float stone, sand are stirred by proportioning, after adding an amount of water stirring then, be extruded as the wallboard base substrate through screw machine again, the body of wall base substrate is placed on indoor dry in the shade naturally one day (good with the plastics fabric envelope), make its natural curing, and then the wallboard base substrate is sent into maintenance in the still kettle.The process of maintenance is, at first charges into steam in still kettle, makes the temperature in the still kettle rise to 180 ℃ by normal temperature through more than 3 hours, and this moment, pressure can reach 10KG/cm
2, constant temperature kept 3 hours then, passed through nearly 3 hours again, made the temperature in the still kettle reduce to normal temperature by 180 ℃, opened still kettle taking-up wallboard base substrate this moment and parked the use of can dispatching from the factory in 1 day again.The still kettle maintenance needs intensification, constant temperature, cooling three phases, wants 9 hours altogether, wherein heats up to be accompanied by to boost, boost to want slow, thus the time longer (greater than 3 hours), and step-down can be soon, so the time is lacked (being less than 3 hours).The still kettle maintenance is under the condition of HTHP, makes cement and composition material that violent hydration reaction and hydro-thermal reaction take place, and meets and exceeds the every performance indications at natural conditions maintenance wainscot sheathing.
The wallboard of still kettle maintenance dispatches from the factory from being molded into, just supported 1 day, and steam-cured 9 hours, go out still and parked 1 day, only need 3 day time altogether, compared greatly in 35 days with natural curing and shortened the production cycle, thoroughly solved the problem in large tracts of land stacking place; Experimental data proves, the wallboard of still kettle maintenance, and its water content has only the 1/3-1/4 of natural curing, because hydration reaction is thorough, has avoided the installation crack of wallboard.Therefore, the wallboard of still kettle maintenance has an enormous advantage than natural curing tool.
The present invention also can be applicable to the wallboard of non-extrusion modling, only needs to prolong the time of just supporting.
Claims (5)
1. the method for a still kettle curing concrete Light trabs comprises concrete light wall panel by the former maintenance process of expecting that manufactured goods are related, it is characterized in that the concrete light wall panel base substrate natural curing of will make moves into maintenance in the still kettle after 1 day.
2. according to the said method of claim 1, the concrete light wall panel base substrate in the still kettle that it is characterized in that packing into through increasing temperature and pressure, and constant temperature and pressure, and three processes of decrease temperature and pressure behind normal temperature and pressure, go out still.
3. according to the said method of claim 2, it is characterized in that increasing temperature and pressure 3 hours, refer to be warming up to 160-180 ℃ gradually, boost to 9-10KG/cm by normal temperature and pressure
2Constant temperature and pressure refers to keep temperature 160-180 ℃, pressure 9-10KG/cm
23 hours; Decrease temperature and pressure refers to constant temperature and pressure decrease temperature and pressure gradually after 3 hours, reaches normal temperature and pressure at last, and whole process continues 9 hours.
4. according to the said method of claim 2, it is characterized in that needing placement to re-use in 1 day after the wallboard base substrate goes out still.
5. according to the said method of claim 1, it is characterized in that concrete light wall panel is a hollow wall panel, thickness is more than the 6cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100267697A CN1318196C (en) | 2004-04-01 | 2004-04-01 | Method for maintaining lightweight wall slab made from concrete by autoclave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100267697A CN1318196C (en) | 2004-04-01 | 2004-04-01 | Method for maintaining lightweight wall slab made from concrete by autoclave |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562600A CN1562600A (en) | 2005-01-12 |
| CN1318196C true CN1318196C (en) | 2007-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100267697A Expired - Fee Related CN1318196C (en) | 2004-04-01 | 2004-04-01 | Method for maintaining lightweight wall slab made from concrete by autoclave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1318196C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722574B (en) * | 2009-08-18 | 2011-12-21 | 四川省富侨工业有限公司 | High-strength concrete and production method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863569A (en) * | 2017-03-24 | 2017-06-20 | 北京恒通创新赛木科技股份有限公司 | Maintenance of equipment and maintenance process |
| CN108656328B (en) * | 2017-03-27 | 2019-10-11 | 北新集团建材股份有限公司 | The steaming pressuring curing process of fiber cement board |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109298A (en) * | 1985-12-25 | 1987-07-01 | 建筑材料科学研究院 | The manufacture method of light concrete plate reinforced with alkali-resisting spun glass |
| CN1313259A (en) * | 2000-07-15 | 2001-09-19 | 华南理工大学 | Process for preparing light building blocks of powdered coal ash for wall |
| CN1431090A (en) * | 2003-02-12 | 2003-07-23 | 蒋元海 | Technical method for producing prestress pipe pile of centrifugal strong concrete with fine grinding steel slag being mixed into |
-
2004
- 2004-04-01 CN CNB2004100267697A patent/CN1318196C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109298A (en) * | 1985-12-25 | 1987-07-01 | 建筑材料科学研究院 | The manufacture method of light concrete plate reinforced with alkali-resisting spun glass |
| CN1313259A (en) * | 2000-07-15 | 2001-09-19 | 华南理工大学 | Process for preparing light building blocks of powdered coal ash for wall |
| CN1431090A (en) * | 2003-02-12 | 2003-07-23 | 蒋元海 | Technical method for producing prestress pipe pile of centrifugal strong concrete with fine grinding steel slag being mixed into |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722574B (en) * | 2009-08-18 | 2011-12-21 | 四川省富侨工业有限公司 | High-strength concrete and production method thereof |
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| Publication number | Publication date |
|---|---|
| CN1562600A (en) | 2005-01-12 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20190401 |