CN110281347A - A kind of construction site small-size concrete prefabricated section production method - Google Patents
A kind of construction site small-size concrete prefabricated section production method Download PDFInfo
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- CN110281347A CN110281347A CN201910731259.6A CN201910731259A CN110281347A CN 110281347 A CN110281347 A CN 110281347A CN 201910731259 A CN201910731259 A CN 201910731259A CN 110281347 A CN110281347 A CN 110281347A
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- concrete
- steel die
- construction site
- prefabricated section
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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
- B28B1/04—Producing shaped prefabricated articles from the material by tamping or ramming
- B28B1/045—Producing shaped prefabricated articles from the material by tamping or ramming combined with vibrating or jolting
-
- 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
- B28B1/093—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of 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
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The present invention proposes a kind of construction site small-size concrete prefabricated section production method.Production steel die selects the place of surfacing using as the bottom plate of steel die, mold cleaning and brushing release agent, concreting pour in two times on side wall and reamer is closely knit, the concrete for being higher by steel die upper surface is struck off floating by floating tool at the construction field (site)；According to the conditions such as temperature after setting time climbing form, conserved according to temperature and place situation concrete precast block.Have the advantages that require working space low, construction efficiency is high, it is at low cost, can be recycled, is simple to operate, finished surface quality it is high.
Description
Technical field
The present invention relates to a kind of construction site small-size concrete prefabricated section production methods.
Background technique
In building engineering construction, it is often necessary to some small-sized concrete precast blocks, since dosage is little, if using
Batch production is customized, then is transported to construction site, and will increase construction cost.At this point, often all carrying out prefabricated processing at the construction field (site).
When carrying out prefabricated processing at the construction field (site), traditional way is, using plank sheathing processing and fabricating mold, mold by baffle, partition,
Fixture and split bolt composition.It is slotted on baffle according to the size of prefabricated section, partition is stuck in the slot of baffle by when installation, group
It is reinforced after the completion of dress with split bolt.When one group of concrete precast block after processing is completed removes mold, then production is installed
Next group of concrete precast block.The method installation and demolishing process it is cumbersome, time-consuming, low efficiency, after a period of use due to
Mold is damaged, must re-start mold processing and prepare.Dismounting mold is completed the process in one group of concrete precast block to re-assembly
When, the concrete being bonded on baffle and partition is not easily cleaned, and the concrete cleaning being especially bonded in baffle plate groove is got up more troublesome.
Due to being assembled mold, concrete precast block is caused to deform if reinforcing and loosely will cause mold distortion, due to needing to use when removing
Iron hammer beats, and therefore, it is longer to remove the time, dismountable, iron hammer when dismounting of generally completing 24 hours rears in concreting
It beats and be easy to cause concrete precast block losing fangle, influence the presentation quality of concrete precast block.
Summary of the invention
The present invention proposes a kind of construction site small-size concrete prefabricated section production method, to solve existing construction site processing
The concrete that existing mold attaching/detaching is inconvenient when small-size concrete prefabricated section, consuming time is long, processing efficiency is low, processes
Prefabricated section there is technical issues that deformation, losing fangle etc..
The technical scheme of the present invention is realized as follows: construction site small-size concrete prefabricated section production method, including with
Lower step:
S1, make steel die according to the prefabricated block size of small-size concrete, steel die include the coaming plate being fixed to each other, partition and
Handle, coaming plate and partition surround the mold cavity of multiple upper/lower terminal openings；
S2, select the place of surfacing using the bottom plate as steel die at the construction field (site), to the flatness in the place of selection
It is required that being not more than 2mm；
S3, cleaning and the brushing release agent on side wall are carried out to mold cavity；
S4, by concreting in each mold cavity, until covering the medium line of short transverse of mold cavity, pass through shake
Dynamic device shock to it closely knit, continues the casting concrete into mold cavity, shock to it again by vibrator closely knit；
S5, by side be scraper plate, the floating tool that side is slicking-in roller strikes off the concrete for being higher by steel die upper surface；
S6, according to the slump of temperature and concrete, after reaching setting time after the completion of concreting, by handle by steel
The separation to realize steel die and concrete precast block is proposed on molding jig；
S7, the concrete precast block after separating in S6 is conserved according to temperature and place situation.
On the basis of above scheme, further improvement is as follows, and in S6, the setting time of summer is 1-1.5 hours,
The setting time of spring and autumn is 2-2.5 hours, and the setting time in winter is 4-4.5 hours.Need to according to the slump of concrete and
Temperature height, grasps the demoulding time of concrete, too early, be easy to cause concrete Collapse Deformation, too late, be easy to cause demoulding
It is difficult.
It on the basis of above scheme, is further improved as follows, when winter construction, is added and early resists by force in concrete production
Freeze agent, in maintenance, the sprinkling maintenance time is not less than 14 days.
On the basis of above scheme, further improvement is as follows, and in S7, the sprinkling maintenance time is not less than 7 days, is making
When narrow field, stacking is concentrated to conserve concrete precast block after concrete precast block demoulds 24 hours.
On the basis of above scheme, further improvement is as follows, in S2, carries out coagulation to the place that construction site is chosen
Native cure process carries out press polish processing to surface.
On the basis of above scheme, further improvement is as follows, and the scraper plate two sides of the floating tool used in S5 are set
Have for the baffle with the limit cooperation of the two sides side guide of steel die, and the distance before two baffles is adjustable.It is convenient
Floating tool and can disposably be completed to smooth out along the length direction guiding movement of steel die, improve and smooth out efficiency.
Using above-mentioned technical proposal, the invention has the benefit that
(1) working space is required low, particular/special requirement is not done to working space size, place only need it is smooth, due to demoulding
Fastly, batch production, mass production have been basically reached, construction efficiency is improved, has accelerated construction speed；
(2) plank sheathing assembly mold way is used compared to traditional, since mold is steel die, is prepared without recycling, once
Investment, is used for a long time, and saves Master Cost and mold processing charges, and the climbing form time is short, highly shortened prefabricated components
Climbing form time and fabrication cycle save a large amount of cost of labor expenses, and cost of labor reduces, low in cost；
(3) construction technology is simple, is easily mastered, and compared to wood mould and other steel assembly molds, this engineering method construction technology is extremely
Simply, it is not required to train, be easily mastered without assembled and dismounting, operator；
(4) finish is good, presentation quality is good, and mold is made of steel plate, indeformable, and is easy cleaning, and the concrete of production is pre-
Scantling processed is correct, upright, and presentation quality is good；
(5) effect is high, and compared with other molds need assembled and dismounting, this engineering method is without recycling assembled and removing, by original
" demoulding " is changed to " climbing form " method, highly shortened " climbing form " time and the fabrication cycle of prefabricated components, and effect is high.According to scene
Comparison makes concrete prefabricated element using this engineering method, and effect can be improved 300% or more.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is small-size concrete prefabricated section production method a kind of process flow of specific embodiment in construction site of the invention
Figure；
Fig. 2 is the top view of steel die；
Fig. 3 is the cross-sectional view in Fig. 2 at A-A；
Fig. 4 is the usage state diagram of floating tool；
Fig. 5 is the partial enlarged view in Fig. 4 at A；
Fig. 6 is the usage state diagram of baffle；
Wherein: 1- steel die, 11- coaming plate, 12- partition, 13- handle, 14- mold cavity, 2- concrete precast block, 3- smooth out work
Tool, 31- handle, 32- scraper plate, 33- slicking-in roller, 34- baffle, 35- adjust stud, 36- shaft.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The specific embodiment of construction site small-size concrete prefabricated section production method of the invention: the small-sized coagulation in construction site
Native prefabricated section production method, comprising the following steps:
S1, steel die is made according to the prefabricated block size of small-size concrete, as Figure 2-3, steel die 1 includes being fixed to each other
Coaming plate 11, partition 12 and handle 13, coaming plate 11 and partition 12 surround the mold cavity 14 of multiple upper/lower terminals openings, steel die
Has 1 lower part without bottom surface, whole use is welded；
S2, select the place of surfacing using the bottom plate as steel die 1 at the construction field (site), to the flatness in the place of selection
It is required that being not more than 2mm；
S3, cleaning and the brushing release agent on side wall are carried out to mold cavity 14；
S4, by concreting in each mold cavity 14, until covering the medium line of short transverse of mold cavity 14, lead to
It crosses vibrator and it shock closely knit, continue the casting concrete into mold cavity 14, it is shaken again by vibrator
Puddling is real；
S5, as Figure 4-Figure 6, steel die 1 will be higher by by the floating tool 3 that side is scraper plate 32, side is slicking-in roller 33
The concrete of upper surface strikes off, and smoothing out tool 3 includes the slicking-in roller of handle 31, base shaft, shaft 36, rolling assembling in shaft 36
33, the scraper plate 32 fixed relative to base shaft, scraper plate 32 two sides be equipped with that threaded hole, there are two baffles by adjusting the installation of stud 35
34, the outer end for adjusting stud 35 is equipped with annular groove, and 34 rolling assembling of baffle is at annular groove with just axial block, circumferential direction can
Rotation adjusts stud 35 and can realize the adjusting of distance between two baffles 34 by screwing, and when use is blocked by two baffles 34
In the two sides of the width direction of steel die 1, concrete is flattened in steel die 1 by slicking-in roller 33, passes through scraper plate 32
The concrete for being higher by 1 upper surface of steel die is struck off below, realizes and smoothes out；
S6, according to the slump of temperature and concrete, after reaching setting time after the completion of concreting, pass through handle 13 will
Steel die 1 above proposes the separation to realize steel die 1 Yu concrete precast block 2；
S7, the concrete precast block 2 after separating in S6 is conserved according to temperature and place situation.
In S6, the setting time of summer is 1-1.5 hours, and the setting time of spring and autumn is 2-2.5 hours, winter
Setting time is 4-4.5 hours.The demoulding time of concrete, mistake need to be grasped according to slump and the temperature height of concrete
It is early, it is be easy to cause concrete Collapse Deformation, too late, be easy to cause demoulding difficult.
When winter construction, early strong antifreeze is added in concrete production, in maintenance, the sprinkling maintenance time is not less than 14
It.
In S7, the sprinkling maintenance time is not less than 7 days, small in the demoulding 24 of concrete precast block 2 when making narrow field
When after by concrete precast block 2 concentrate pile up conserve.
In S2, concrete hardening processing is carried out to the place that construction site is chosen, press polish processing is carried out to surface.
32 two sides of scraper plate of floating tool 3 used in S5 are equipped with for the two sides side guide with steel die 1
The baffle 34 of cooperation is limited, and the distance before two baffles 34 is adjustable.Facilitate floating tool 3 along the length of steel die 1
Direction guiding movement is spent, and can disposably complete to smooth out, improves and smoothes out efficiency.
The characteristics of this method:
(1) working space is required low, particular/special requirement is not done to working space size, place only need it is smooth, due to demoulding
Fastly, batch production, mass production have been basically reached, construction efficiency is improved, has accelerated construction speed；
(2) plank sheathing assembly mold way is used compared to traditional, since mold is steel die, is prepared without recycling, once
Investment, is used for a long time, and saves Master Cost and mold processing charges, and the climbing form time is short, highly shortened prefabricated components
Climbing form time and fabrication cycle save a large amount of cost of labor expenses, and cost of labor reduces, low in cost；
(3) construction technology is simple, is easily mastered, and compared to wood mould and other steel assembly molds, this engineering method construction technology is extremely
Simply, it is not required to train, be easily mastered without assembled and dismounting, operator；
(4) finish is good, presentation quality is good, and mold is made of steel plate, indeformable, and is easy cleaning, and the concrete of production is pre-
Scantling processed is correct, upright, and presentation quality is good；
(5) effect is high, and compared with other molds need assembled and dismounting, this engineering method is without recycling assembled and removing, by original
" demoulding " is changed to " climbing form " method, highly shortened " climbing form " time and the fabrication cycle of prefabricated components, and effect is high.According to scene
Comparison makes concrete prefabricated element using this engineering method, and effect can be improved 300% or more.
Technological principle: carrying out mold according to the specification size of concrete prefabricated element using 3mm thick steel plate and be welded, the mold
It is made of surrounding baffle, intermediate bulkhead and handle, no bed die.It, only need to be in smooth location when making concrete prefabricated element
On, one layer of release agent is brushed after steel mold inner surface is cleaned out, and then concrete is poured into and pour in steel die smashing
It is closely knit, when climbing form, the ambilateral handle of mould is held, mold is gently lifted.It should be noted that when one group of prefabricated component
After the completion of concreting, the demoulding time of concrete need to be grasped according to slump and the temperature height of concrete, too early,
It is be easy to cause concrete Collapse Deformation, too late, be easy to cause demoulding difficult.It is learnt according to site operation experience, under normal circumstances
The climbing form time carries out between 1~1.5 hour after the completion of concreting when summer makes, and the climbing form time exists when spring and autumn makes
It is carried out between 2~2.5 hours after the completion of concreting, the climbing form time is 4~5 small after the completion of concreting when winter makes
When between carry out.
When Specific construction, as shown in Figure 1:
1 preparation of construction: place where prefabricated component template must keep smooth, template bottom flatness≤2mm.Mould inner wall is cleared up
Completely, and brushing release agent.
2 filling concretes: commerical ready-mixed concrete being poured into two times, and is poured dense respectively, and pouring should use after smashing in time
Wooden float, which is rubbed with the hands, puts down, and removes extra laitance.
3 climbing forms: when climbing form, the ambilateral handle of mould is held, mold is vertically gently lifted.It should be noted that when one
After the completion of group prefabricated components concreting, the climbing form of concrete need to be grasped according to slump and the temperature height of concrete
Time be easy to cause concrete Collapse Deformation too early, too late, be easy to cause demoulding difficult.It is learnt according to site operation experience,
The climbing form time carries out between 1~1.5 hour after the completion of concreting when summer makes under normal circumstances, when spring and autumn makes
The climbing form time carries out between 2~2.5 hours after the completion of concreting, and the climbing form time is complete in concreting when winter makes
At being carried out between latter 4~5 hours.
4 maintenances: after climbing form, according to temperature situation in time to finished product sprinkling maintenance, curing time is no less than 7d.If
Narrow field is made, prefabricated components can be concentrated after demoulding 24 hours and continue maintenance to 7 days after piling up.Such as winter construction, a side
Early strong antifreeze is added in face in concrete production, on the other hand carries out and reinforces Insulation after pouring, curing time is many
In 14d.
Construction embodiment:
1 certain city's urgent disorder in orthopaedics hospital Inpatient Building engineering
The engineering is located at certain city hongli main road 389, basement one, 17 layers of ground, frame structure, overall floorage: 29902
Square metre.Starting date: on March 18th, 2011, time of accomplishment: on September 9th, 2012.Total construction period: 542 days.
2 certain county town Long Yuanxin Cheap Renting Houses
The project is located at certain city, new district Huashan road, Plain and Jia Lingjiang River road intersection, shear wall structure, including 13 22~32 floor
Starting date: skyscraper and building for commercial use, underground garage, 16.51 ten thousand m2 of overall floorage are completed day on March 20th, 2013
Phase: on March 1st, 2015.
3 certain city, new district, Plain " town Long Yuanxin second phase " peasant's housing for survivor project
The project is located at certain city, new district Plain main road, Plain and Central Region main road intersection Bei Duan northeast corner, by plot four and plot five
Composition, wherein plot four is the town Long Yuanxin primary school, and frame structure, construction area is 9764.49 13 ㎡；Plot five includes 8 17
~26 storey buildings and building for commercial use, underground garage, Community Service Center, shear wall structure, construction area 124366.99
㎡.Overall floorage is 134131.48 ㎡, December 25 2014 starting date, time of accomplishment: on November 20th, 2017.
Engineering evaluation:
The above engineering is all made of this method processing small-size concrete prefabricated component, buys compared to from precast plant, has saved prefabricated component
Transport and loading-unloading vehicle expense.Compared to other wooden model assembly molds, production need to be prepared since wooden model breakage turnover rate is low repeatedly by reducing
Raw artificial and Master Cost.Product size is correct, and climbing form is fast, and perception is good.Batch production, mass production are reached.Ensuring
Work efficiency improves 300% or more while product quality, obtains the one of other units of taking part in building and local administrative department for construction
Cause favorable comment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. construction site small-size concrete prefabricated section production method, which comprises the following steps:
S1, make steel die according to the prefabricated block size of small-size concrete, steel die include the coaming plate being fixed to each other, partition and
Handle, coaming plate and partition surround the mold cavity of multiple upper/lower terminal openings；
S2, select the place of surfacing using the bottom plate as steel die at the construction field (site), to the flatness in the place of selection
It is required that being not more than 2mm；
S3, cleaning and the brushing release agent on side wall are carried out to mold cavity；
S4, by concreting in each mold cavity, until covering the medium line of short transverse of mold cavity, pass through shake
Dynamic device shock to it closely knit, continues the casting concrete into mold cavity, shock to it again by vibrator closely knit；
S5, by side be scraper plate, the floating tool that side is slicking-in roller strikes off the concrete for being higher by steel die upper surface；
S6, according to the slump of temperature and concrete, after reaching setting time after the completion of concreting, by handle by steel
The separation to realize steel die and concrete precast block is proposed on molding jig；
S7, the concrete precast block after separating in S6 is conserved according to temperature and place situation.
2. small-size concrete prefabricated section production method in construction site according to claim 1, which is characterized in that in S6,
The setting time of summer is 1-1.5 hours, and the setting time of spring and autumn is 2-2.5 hours, and the setting time in winter is 4-4.5
Hour.
3. small-size concrete prefabricated section production method in construction site according to claim 1 or 2, which is characterized in that winter
When construction, early strong antifreeze is added in concrete production, in maintenance, the sprinkling maintenance time is not less than 14 days.
4. small-size concrete prefabricated section production method in construction site according to claim 1 or 2, which is characterized in that in S7
In, the sprinkling maintenance time is not less than 7 days, when making narrow field, by concrete after concrete precast block demoulds 24 hours
Prefabricated section is concentrated to pile up and be conserved.
5. small-size concrete prefabricated section production method in construction site according to claim 1 or 2, which is characterized in that in S2
In, concrete hardening processing is carried out to the place that construction site is chosen, press polish processing is carried out to surface.
6. small-size concrete prefabricated section production method in construction site according to claim 1 or 2, which is characterized in that in S5
Used in the scraper plate two sides of floating tool be equipped with for the baffle with the limit cooperation of the two sides side guide of steel die, and
And the distance before two baffles is adjustable.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505940A (en) * | 2021-12-29 | 2022-05-17 | 苏州良浦住宅工业有限公司 | Process for forming rough surface of prefabricated part by using steel plate |
| CN114589794A (en) * | 2022-01-21 | 2022-06-07 | 中铁二十局集团有限公司 | Concrete prefabricated small component mold and using method thereof |
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| EP0433591A2 (en) * | 1989-12-22 | 1991-06-26 | Fear S.P.A. | Method and means for forming blocks from concrete mix at a high production rate and with high shape definition, and the product obtained |
| CN204935857U (en) * | 2015-08-19 | 2016-01-06 | 长江宜昌航道工程局 | A kind of large area integrated units row mould |
| CN205347937U (en) * | 2015-12-09 | 2016-06-29 | 重庆飞强混凝土有限公司 | Concrete paving device |
| CN206158352U (en) * | 2016-09-08 | 2017-05-10 | 河北省高速公路青银管理处 | Isolated gate basis prefabricated mould |
| CN207031978U (en) * | 2017-05-26 | 2018-02-23 | 马文涛 | A kind of construction concrete flattening device |
| CN108247812A (en) * | 2018-01-31 | 2018-07-06 | 舒子杨 | A kind of production method of precast concrete |
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2019
- 2019-08-08 CN CN201910731259.6A patent/CN110281347A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0433591A2 (en) * | 1989-12-22 | 1991-06-26 | Fear S.P.A. | Method and means for forming blocks from concrete mix at a high production rate and with high shape definition, and the product obtained |
| CN204935857U (en) * | 2015-08-19 | 2016-01-06 | 长江宜昌航道工程局 | A kind of large area integrated units row mould |
| CN205347937U (en) * | 2015-12-09 | 2016-06-29 | 重庆飞强混凝土有限公司 | Concrete paving device |
| CN206158352U (en) * | 2016-09-08 | 2017-05-10 | 河北省高速公路青银管理处 | Isolated gate basis prefabricated mould |
| CN207031978U (en) * | 2017-05-26 | 2018-02-23 | 马文涛 | A kind of construction concrete flattening device |
| CN108247812A (en) * | 2018-01-31 | 2018-07-06 | 舒子杨 | A kind of production method of precast concrete |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505940A (en) * | 2021-12-29 | 2022-05-17 | 苏州良浦住宅工业有限公司 | Process for forming rough surface of prefabricated part by using steel plate |
| CN114589794A (en) * | 2022-01-21 | 2022-06-07 | 中铁二十局集团有限公司 | Concrete prefabricated small component mold and using method thereof |
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