CN108247812A - A kind of production method of precast concrete - Google Patents
A kind of production method of precast concrete Download PDFInfo
- Publication number
- CN108247812A CN108247812A CN201810095989.7A CN201810095989A CN108247812A CN 108247812 A CN108247812 A CN 108247812A CN 201810095989 A CN201810095989 A CN 201810095989A CN 108247812 A CN108247812 A CN 108247812A
- Authority
- CN
- China
- Prior art keywords
- concrete
- mold
- die station
- precuring
- precast concrete
- Prior art date
- 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.)
- Pending
Links
- 239000011178 precast concrete Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 66
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 9
- 229920002545 silicone oil Polymers 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000005336 cracking Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims 1
- 230000002028 premature Effects 0.000 abstract description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
-
- 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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- 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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
-
- 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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/384—Treating agents
Abstract
The invention discloses a kind of production method of precast concrete, including cleaning die station, mold, setting-out, mould, material feeding, closely knit, precuring, demoulding, maintenance are spelled.The method of the precast concrete of the application makes it possible to premature removal mold by precuring processing, shortens the period that mold participates in production, can effectively improve the production efficiency of concrete prefabricated element.
Description
Technical field
The present invention relates to precast concrete field, more particularly, to a kind of production method of precast concrete.
Background technology
The building being assembled into prefabricated building element, there are many different methods, such as prefabricated garage can be in place
Upper installation is installed in building, is embedded in appropriate frame and built up using precast wall body, this construction method ratio
Conventional construction method is reasonable, but cost is high, time-consuming, and the required precision made to building element is very high.
U.S. Patent No. 2,691,291, is the building built up with precast concrete component, pre-constructed unit is generally
Production is lieed down, then vertically, then-by sequencing.This method cost is higher, because requiring cast accurate, and designs flexible
Property is also considerably limited.
British Patent No. 913,841, is the building formed with precast concrete, employs a large amount of different structures
Part.This method, because component type is more, increases the expense of cast and storage to being designed with larger freedom.
Concrete prefabricated element is also known as PC components, refers to process by standardization, mechanized manner in the factory
Concrete product.Corresponding tradition cast-in-place concrete needs building-site molding, cast-in-site and scene maintenance.Coagulation
Native prefabricated component is widely used in the fields such as building, traffic, water conservancy, and important role is played the part of in national economy.It is more next at present
More concrete prefabricated element processing factories sets up, for this purpose, can improve the production efficiency of concrete prefabricated element and quality is
One important factor, therefore the application has developed a integrated production line dedicated for production concrete prefabricated element, and
With the production method for closing the application, the production method of concrete prefabricated element can be effectively improved.
Invention content
Problem to be solved by this invention is, it is middle for the above-mentioned prior art the shortcomings that, propose innovation scheme, especially one
Kind can effectively improve the production efficiency of concrete prefabricated element, greatly shorten the demoulding time of concrete prefabricated element
Scheme.
To solve the above problems, the scheme that the present invention uses is as follows：A kind of method of precast concrete, feature exist
In including the following steps：
1）Die station and mold are cleared up, the die station and mold that will use are cleared up；
2）Setting-out requires progress setting-out in the die station cleared up according to mold assembly；
3）Releasing agent is sprayed, releasing agent is sprayed in the die station for finish line so that one layer of releasing agent is uniformly adhered on die station surface；
4）Assembled mold will need mold assembly to be used to be molded in die station, and it will be fixed；
5）Prepare concrete, being configured needs concrete to be used, and is sufficiently stirred, for use；
6）Material feeding is injected the concrete being stirred in mold using material distributing machine；
7）It is closely knit, using the shaking device of die station band, the concrete in mold shake closely knit, removed in concrete
Gas；
8）Roll it is flat, it is flat using rolling flat machine by concrete surface and rolling；
9）Precuring, will be closely knit after concrete component be sent into precuring storehouse together with die station and mold and carry out precuring,
The precuring time is 2-4 hours；
10）Demoulding, the mold on the concrete component Jing Guo precuring is removed；Mold repeats step 2 after cleaning）
To 10）；
11）Maintenance, the concrete component for having removed mold is sent into together with die station in maintenance bin and is conserved, curing time
It it is 6-8 hours, then export, obtains finished product concrete component；Die station repeats step 2 after cleaning）To 11）.
Further, according to above-mentioned designing scheme precast concrete method, which is characterized in that the step 3）
Releasing agent used is silicones metlyl branching silicone oil, methyl-silicone oil, the mixture for emulsifying methyl-silicone oil.
Further, according to above-mentioned designing scheme precast concrete method, which is characterized in that the step 4）
After middle mold assembly is good, reinforced surface net, girder rib and cracking resistance reinforcing bar wire side in concrete component is wherein installed, and to reinforcing bar
Veil, girder rib and cracking resistance reinforcing bar wire side are fixed.
Further, according to above-mentioned designing scheme precast concrete method, which is characterized in that the step 6）
Middle die station is moved under driving device effect below material distributing machine, is injected the concrete being stirred in mold by material distributing machine.
Further, according to above-mentioned designing scheme precast concrete method, which is characterized in that the step 8）
Rolling also needs after putting down by bristle step, and bristle processing is carried out to surface of concrete structure.
Further, according to above-mentioned designing scheme precast concrete method, which is characterized in that the step 9）
Polishing processing is carried out to the surface of concrete component after precuring.
The technique effect of the present invention is as follows：The method of the precast concrete of the application is made it possible to by precuring processing
Enough premature removal molds shorten the period that mold participates in production, can effectively improve the production effect of concrete prefabricated element
Rate.
The die station and mold that will use are cleared up first, ensure its surface cleaning, picture is then carried out in die station
Line, the requirement of each institute's setting-out determine according to the mold that will be used, and different molds draws different lines, setting-out be in order to
Accurate assembly mold ensures that the assembly of mold is successful and accurate.After finishing line, in one layer of releasing agent of die station surface spraying, it is
When demolished more conveniently and quickly.Then assembled mold is carried out, needs to be fixed, and right after mold assembly is good
Mould inner surface sprays releasing agent, also for conveniently stripped.After everything in readiness, the concrete after stirring is injected into mould
In tool, then starting shock device, to the concrete in mold shake closely knit so that the gas discharge in concrete ensures
The structural strength of concrete component.Roll the flat surface to concrete component roll it is flat, then as needed whether to coagulation
The surface of native component carries out bristle processing, some needs, some are not needed to, and subsequently into precuring, precuring is in order to by mould
Have premature removal, and precuring can allow the intensity of concrete component to be rapidly achieved the requirement of form removal.This is the uniqueness of the application
Design.But after having torn mold open, it is also necessary to be conserved so that concrete component thoroughly solidifies, and reaches intensity requirement, then could
It constructs in transport to building site.Polishing after precuring is handled depending on being also as needed, some need some not need to.
Specific embodiment
Embodiment 1：A kind of method of precast concrete, includes the following steps：
1）Die station and mold are cleared up, the die station and mold that will use are cleared up；
2）Setting-out requires progress setting-out in the die station cleared up according to mold assembly；
3）Releasing agent is sprayed, releasing agent is sprayed in the die station for finish line so that one layer of releasing agent is uniformly adhered on die station surface；
4）Assembled mold will need mold assembly to be used to be molded in die station, and it will be fixed；
5）Prepare concrete, being configured needs concrete to be used, and is sufficiently stirred, for use；
6）Material feeding is injected the concrete being stirred in mold using material distributing machine；
7）It is closely knit, using the shaking device of die station band, the concrete in mold shake closely knit, removed in concrete
Gas；
8）Roll it is flat, it is flat using rolling flat machine by concrete surface and rolling；
9）Precuring, will be closely knit after concrete component be sent into precuring storehouse together with die station and mold and carry out precuring,
The precuring time is 2-4 hours；
10）Demoulding, the mold on the concrete component Jing Guo precuring is removed；Mold repeats step 2 after cleaning）
To 10）；
11）Maintenance, the concrete component for having removed mold is sent into together with die station in maintenance bin and is conserved, curing time
It it is 6-8 hours, then export, obtains finished product concrete component；Die station repeats step 2 after cleaning）To 11）.
Embodiment 2：A kind of method of precast concrete, includes the following steps：
1）Die station and mold are cleared up, the die station and mold that will use are cleared up；
2）Setting-out requires progress setting-out in the die station cleared up according to mold assembly；
3）Releasing agent is sprayed, releasing agent is sprayed in the die station for finish line so that one layer of releasing agent is uniformly adhered on die station surface；
4）Assembled mold will need mold assembly to be used to be molded in die station, and it will be fixed；
5）Prepare concrete, being configured needs concrete to be used, and is sufficiently stirred, for use；
6）Material feeding is injected the concrete being stirred in mold using material distributing machine；
7）It is closely knit, using the shaking device of die station band, the concrete in mold shake closely knit, removed in concrete
Gas；
8）Roll it is flat, it is flat using rolling flat machine by concrete surface and rolling；Roll it is flat after bristle processing is carried out to concrete surface.
9）Precuring, will be closely knit after concrete component be sent into precuring storehouse together with die station and mold and carry out precuring
Shield, precuring time are 2-4 hours；
10）Demoulding, the mold on the concrete component Jing Guo precuring is removed；Mold repeats step 2 after cleaning）
To 10）；
11）Maintenance, the concrete component for having removed mold is sent into together with die station in maintenance bin and is conserved, curing time
It it is 6-8 hours, then export, obtains finished product concrete component；Die station repeats step 2 after cleaning）To 11）.
Claims (6)
1. a kind of production method of precast concrete, which is characterized in that include the following steps：
1）Die station and mold are cleared up, the die station and mold that will use are cleared up；
2）Setting-out requires progress setting-out in the die station cleared up according to mold assembly；
3）Releasing agent is sprayed, releasing agent is sprayed in the die station for finish line so that one layer of releasing agent is uniformly adhered on die station surface；
4）Assembled mold will need mold assembly to be used to be molded in die station, and it will be fixed；
5）Prepare concrete, being configured needs concrete to be used, and is sufficiently stirred, for use；
6）Material feeding is injected the concrete being stirred in mold using material distributing machine；
7）It is closely knit, using the shaking device of die station band, the concrete in mold shake closely knit, removed in concrete
Gas；
8）Roll it is flat, it is flat using rolling flat machine by concrete surface and rolling；
9）Precuring, will be closely knit after concrete component be sent into precuring storehouse together with die station and mold and carry out precuring,
The precuring time is 2-4 hours；
10）Demoulding, the mold on the concrete component Jing Guo precuring is removed；Mold repeats step 2 after cleaning）
To 10）；
11）Maintenance, the concrete component for having removed mold is sent into together with die station in maintenance bin and is conserved, curing time
It it is 6-8 hours, then export, obtains finished product concrete component；Die station repeats step 2 after cleaning）To 11）.
2. the method for precast concrete according to claim 1, which is characterized in that the step 3）Releasing agent used is
Silicones metlyl branching silicone oil, methyl-silicone oil, the mixture for emulsifying methyl-silicone oil.
3. the method for precast concrete according to claim 1, which is characterized in that the step 4）Middle mold assembly is good
Afterwards, reinforced surface net, girder rib and the cracking resistance reinforcing bar wire side in concrete component is wherein installed, and to reinforced surface net, girder rib
It is fixed with cracking resistance reinforcing bar wire side.
4. the method for precast concrete according to claim 1, which is characterized in that the step 6）Middle die station is driving
It moves to below material distributing machine under device effect, is injected the concrete being stirred in mold by material distributing machine.
5. the method for precast concrete according to claim 1, which is characterized in that the step 8）Roll it is flat after also need through
Bristle step is crossed, bristle processing is carried out to surface of concrete structure.
6. the method for precast concrete according to claim 1, which is characterized in that the step 9）To mixed after precuring
The surface of solidifying soil component carries out polishing processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095989.7A CN108247812A (en) | 2018-01-31 | 2018-01-31 | A kind of production method of precast concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095989.7A CN108247812A (en) | 2018-01-31 | 2018-01-31 | A kind of production method of precast concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108247812A true CN108247812A (en) | 2018-07-06 |
Family
ID=62743908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810095989.7A Pending CN108247812A (en) | 2018-01-31 | 2018-01-31 | A kind of production method of precast concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108247812A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109795011A (en) * | 2019-02-14 | 2019-05-24 | 上海三一筑工建设有限公司 | A kind of concrete prefabricated element manufacture craft |
| CN110126059A (en) * | 2019-05-10 | 2019-08-16 | 中交浚浦建筑科技(上海)有限公司 | A kind of preparation process of precast concrete |
| CN110281347A (en) * | 2019-08-08 | 2019-09-27 | 中国建筑第七工程局有限公司 | A kind of construction site small-size concrete prefabricated section production method |
| CN111168836A (en) * | 2019-12-30 | 2020-05-19 | 远建工业化住宅集成科技有限公司 | Prefabricated composite floor slab reserved hole position control device and control method |
| CN111941605A (en) * | 2020-08-14 | 2020-11-17 | 武汉市人防工程专用设备有限责任公司 | Rapid assembly method for mold of PC prefabricated part |
| CN112942417A (en) * | 2019-12-10 | 2021-06-11 | 中铁建工集团有限公司 | Precast concrete wall guide support |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233916A (en) * | 1975-09-12 | 1977-03-15 | Asahi Chemical Ind | Production method of steel tube and concrete compound column |
| JPH02190305A (en) * | 1989-01-20 | 1990-07-26 | Matsushita Electric Works Ltd | Manufacture of light foam concrete-plate with inserted reinforcing core |
| WO2002011960A1 (en) * | 2000-08-03 | 2002-02-14 | Enviroc, Inc. | Method of manufacturing autoclaved, cellular concrete products using bottom ash |
| CN103112083A (en) * | 2013-02-06 | 2013-05-22 | 中国科学院广州能源研究所 | Preparation method for aerated concrete ecological flowerpot |
| CN104057537A (en) * | 2014-06-20 | 2014-09-24 | 河北雪龙机械制造有限公司 | Concrete member production system |
| CN104723449A (en) * | 2015-02-12 | 2015-06-24 | 沈阳卫德住宅工业化科技有限公司 | Automatic production line of building industrialization concrete precast members |
| CN105459258A (en) * | 2016-01-11 | 2016-04-06 | 河北榆构建材有限公司 | Pc component production line |
| CN105500518A (en) * | 2016-01-19 | 2016-04-20 | 山东中新绿色建筑科技有限公司 | Prefabricated stair production line and production method |
| CN107627436A (en) * | 2017-11-01 | 2018-01-26 | 迈瑞司（北京）抗震住宅技术有限公司 | The production technology and production facility of concrete prefabricated element |
-
2018
- 2018-01-31 CN CN201810095989.7A patent/CN108247812A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233916A (en) * | 1975-09-12 | 1977-03-15 | Asahi Chemical Ind | Production method of steel tube and concrete compound column |
| JPH02190305A (en) * | 1989-01-20 | 1990-07-26 | Matsushita Electric Works Ltd | Manufacture of light foam concrete-plate with inserted reinforcing core |
| WO2002011960A1 (en) * | 2000-08-03 | 2002-02-14 | Enviroc, Inc. | Method of manufacturing autoclaved, cellular concrete products using bottom ash |
| CN103112083A (en) * | 2013-02-06 | 2013-05-22 | 中国科学院广州能源研究所 | Preparation method for aerated concrete ecological flowerpot |
| CN104057537A (en) * | 2014-06-20 | 2014-09-24 | 河北雪龙机械制造有限公司 | Concrete member production system |
| CN104723449A (en) * | 2015-02-12 | 2015-06-24 | 沈阳卫德住宅工业化科技有限公司 | Automatic production line of building industrialization concrete precast members |
| CN105459258A (en) * | 2016-01-11 | 2016-04-06 | 河北榆构建材有限公司 | Pc component production line |
| CN105500518A (en) * | 2016-01-19 | 2016-04-20 | 山东中新绿色建筑科技有限公司 | Prefabricated stair production line and production method |
| CN107627436A (en) * | 2017-11-01 | 2018-01-26 | 迈瑞司（北京）抗震住宅技术有限公司 | The production technology and production facility of concrete prefabricated element |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109795011A (en) * | 2019-02-14 | 2019-05-24 | 上海三一筑工建设有限公司 | A kind of concrete prefabricated element manufacture craft |
| CN110126059A (en) * | 2019-05-10 | 2019-08-16 | 中交浚浦建筑科技(上海)有限公司 | A kind of preparation process of precast concrete |
| CN110281347A (en) * | 2019-08-08 | 2019-09-27 | 中国建筑第七工程局有限公司 | A kind of construction site small-size concrete prefabricated section production method |
| CN112942417A (en) * | 2019-12-10 | 2021-06-11 | 中铁建工集团有限公司 | Precast concrete wall guide support |
| CN111168836A (en) * | 2019-12-30 | 2020-05-19 | 远建工业化住宅集成科技有限公司 | Prefabricated composite floor slab reserved hole position control device and control method |
| CN111941605A (en) * | 2020-08-14 | 2020-11-17 | 武汉市人防工程专用设备有限责任公司 | Rapid assembly method for mold of PC prefabricated part |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180706 |
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