CN2031742U - Mould for vaccum-dewatering of concrete by side suction - Google Patents
Mould for vaccum-dewatering of concrete by side suction Download PDFInfo
- Publication number
- CN2031742U CN2031742U CN 88205369 CN88205369U CN2031742U CN 2031742 U CN2031742 U CN 2031742U CN 88205369 CN88205369 CN 88205369 CN 88205369 U CN88205369 U CN 88205369U CN 2031742 U CN2031742 U CN 2031742U
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- China
- Prior art keywords
- concrete
- vacuum
- mould
- dewatering
- side suction
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Abstract
The utility model relates to a mould for vacuum-dewatering of concrete by side suction, which is a device for the side suction, dewatering and rapid prototyping of the member such as a beam, a pillar, a wall plate, etc.; the utility model comprises two parts of a mould plate and a vacuum mat; the vacuum mat is composed of a sealing layer, a filtering layer, a reinforced layer and a vacuum suction nozzle; a pocket-shaped vacuum chamber is stitched or pasted by the sealing layer and the filtering layer, and the inside of the vacuum chamber is provided with the reinforced layer; the concrete to be poured is arranged in the cavity; the water in the concrete dewaters quickly by the function of the vacuum extrusion, and the demoulding is conducted right away; the mould for vacuum-dewatering of concrete by side suction is in convenient for improving the early strength of the concrete component.
Description
The utility model belongs to the concrete vacuum dehydration mould in the building operations apparatus field, is specially adapted to the construction of stays such as beam, post, wallboard.
In concrete construction process, a kind of advanced person's construction technology has appearred in early seventies---the vacuum operation method, by means of negative pressure of vacuum, water is discharged from the concrete mix of firm moulding, make concrete compaction, quick solidifying, thereby reach the purpose of the demoulding rapidly, Sweden Tremix company develops the easy and inexpensive equipment of a cover, but only limits to cast at concrete the upper surface use of thing, and constructing for the side draught of vertical elevation is not reported.
The utility model purpose is to have developed the side draught mould of the concrete vacuum dehydration of stays such as being applicable to beam column, wallboard.
The utility model mould is made up of two parts, side template and vacuum mat (being vacuum chamber).Side template can be wooden form, steel form.Inhaling pad is made up of sealant, casing play, filtration beds and vacuum slot.The utility model mould is installed earlier during construction, and placing of concrete according to a conventional method therein carries out vacuum operation immediately then.For making vacuum press effective, the utility model is sewed up with sealant and filtration beds or is bonded into pocket shape, and interior dress casing play forms vacuum chamber, and is connected with the template inboard.Casing play is made by the netted flexible plastic net of bilayer sheet, will make the skeleton size less than 5～20 centimeters of filtration beds and sealant sizes during installation, makes it to form band.One or several width of increase is 10～12 centimeters a plastic wire bar between casing play and filtration beds, as drainage channel.
The use of the utility model mould can make disturbing concrete water in inhaling pad and smash, and carries out vacuum dehydration again, can fast demoulding.Garden post vacuum dehydration is saved form cost with 24.39 yuan than the every cubic meter of concrete of conventional wooden model, and the saving rate is 46.28%, and rectangular column vacuum dehydration is saved 23.25 yuan of form costs than the every cubic meter of concrete of conventional steel form, and the saving rate is 50.12%.The sealing of this mould is good, and concrete surface is formed extruding force, therefore the compacted effect of good dehydration is arranged, and component strength is improved, and generally can save cement 8%.If save 21 kilograms of cement for every cubic metre with No. 200 concrete.Because the vacuum press effect, concrete surface formation plastic deeping impression does not have interleaving agent in addition, can omit and whitewash preceding cleaning, and the hacking operation is saved manually, and in conjunction with firm.
The drawing of accompanying drawing is described as follows:
Side draught method concrete vacuum dehydration mould schematic diagram.
Among the figure: the mould most external is a template 1, can be steel form or wooden form.Sealant 2 is close to the template inner surface and filtration beds 4 is seamed into pocket, and interior dress casing play 3 forms vacuum chamber and ambient atmosphere and separates, and a mouthful place is taken out in the vacuum chamber bottom vacuum slot 5.
Side draught method vacuum concrete dehydration mould is made up of template 1 and suction pad two parts, inhales pad by sealant 2, casing play 3, and filtration beds 4, vacuum slot 5 is formed.Template size will give and stay concrete compression surplus, general up-sizing 1%.The frame plastic netting length is less than sealant and filtration beds size, makes the concrete casting material filling in the extruding of template interface place, makes good seal.In order to make the current in the concrete unimpeded, can in the middle of casing play and filtration beds, fill up one or several plastic wire bar again in the place, the width of net bar is 10～12 centimeters.
The utility model mould is to install earlier vacuum mat in template, placing of concrete in inhaling pad, begin vacuum dehydration then, the general liquid-ring type vacuum dehydration unit that adopts, when making the interior vacuum of vacuum chamber after the start, because the pressure reduction in atmospheric pressure and the vacuum chamber forms extruding to concrete surface greater than 300 millimetress of mercury, make concrete realize the compacted effect of fast dewatering, help the raising of concrete component early strength.
The utility model mould is applicable to wet concrete, and the concrete sand factor should increase by 3～5% than ordinary concrete generally speaking.
Through evidence, dehydration rate was directly proportional with the time, however a large amount of dehydration finish in early days in vacuum dehydration, thick 40 centimeters of for example two-sided member of establishing vacuum chamber, vacuum processing time is 25 minutes.50 centimeters of garden post member diameters, vacuum processing time 30 minutes, at this moment stripping result is best.Time prolongs again, the hurried decline of dehydration rate.
Prove also that through test the vacuum of garden post illustrates that than square column height the full post vacuum chamber of employing is better than the tightness of bilateral vacuum chamber.
Claims (3)
1, the mould used of a kind of concrete vacuum dehydration operation, by template 1, sealant 2, casing play 3, filtration beds 4 and vacuum slot 5 are formed, it is characterized in that side draught method concrete vacuum dehydration mould is to sew up or be bonded into pocket shape, interior dress casing play with sealant and filtration beds.Form vacuum chamber, be connected with the template inboard.
2, concrete vacuum dehydration mould according to claim 1, the size that it is characterized in that casing play is less than 5～20 centimeters of filtration beds and sealant sizes.
3, concrete vacuum dehydration mould according to claim 1 is characterized in that between casing play and the filtration beds increasing one or several width and is 10～12 centimeters plastic wire bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205369 CN2031742U (en) | 1988-05-07 | 1988-05-07 | Mould for vaccum-dewatering of concrete by side suction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205369 CN2031742U (en) | 1988-05-07 | 1988-05-07 | Mould for vaccum-dewatering of concrete by side suction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2031742U true CN2031742U (en) | 1989-02-01 |
Family
ID=4839785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88205369 Withdrawn CN2031742U (en) | 1988-05-07 | 1988-05-07 | Mould for vaccum-dewatering of concrete by side suction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2031742U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806659A (en) * | 2016-05-24 | 2016-07-27 | 青岛理工大学 | Device for obtaining pore solution in cement-based material and method for analyzing components of pore solution |
| CN106042145A (en) * | 2016-07-29 | 2016-10-26 | 重庆唐盛精密模具有限公司 | Concrete mould capable of conveniently demolding |
-
1988
- 1988-05-07 CN CN 88205369 patent/CN2031742U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806659A (en) * | 2016-05-24 | 2016-07-27 | 青岛理工大学 | Device for obtaining pore solution in cement-based material and method for analyzing components of pore solution |
| CN106042145A (en) * | 2016-07-29 | 2016-10-26 | 重庆唐盛精密模具有限公司 | Concrete mould capable of conveniently demolding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |