CN105569253A - Impermeable internal formwork for cast-in-situ concrete hollow slabs - Google Patents
Impermeable internal formwork for cast-in-situ concrete hollow slabs Download PDFInfo
- Publication number
- CN105569253A CN105569253A CN201510957523.XA CN201510957523A CN105569253A CN 105569253 A CN105569253 A CN 105569253A CN 201510957523 A CN201510957523 A CN 201510957523A CN 105569253 A CN105569253 A CN 105569253A
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- China
- Prior art keywords
- internal mold
- cast
- impervious
- impervious internal
- situ concrete
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/24—Elements for building-up floors, ceilings, roofs, arches, or beams
- E04C1/34—Elements for building-up floors, ceilings, roofs, arches, or beams designed for use as filling elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses an impermeable internal formwork for cast-in-situ concrete hollow slabs. The impermeable internal formwork for the cast-in-situ concrete hollow slabs is used for being placed in a cast-in-place concrete floor slab; the impermeable internal formwork is a hollow component made of impervious materials, a transverse waterstop preventing water from permeating along the side wall is arranged on the peripheral side wall of the impermeable internal formwork, and/or the outer wall of an interface of the impermeable internal formwork and the surrounding concrete is coated with a waterproof coating with water permeation stop performance. The cast-in-situ concrete hollow slabs embedded with the impermeable internal formworks have the impervious performance not lower than that of equal-thick solid slabs, but are lighter and less in usage of concrete. The impermeable internal formwork is simple in process, high in practicability and low in cost, and has broad application prospect.
Description
Technical field
The invention belongs to technical field of civil engineering, be specifically related to the impervious internal mold of a kind of cast-in-situ concrete hollow slab.
Background technology
At present, cast-in-place concrete hollow building roof structure is more and more widely used, but there is a large amount of cavitys because of its inside, and the existence of these cavitys must cause hollow building cover easily to leak and be difficult to the problem of repairing after leaking.Particularly the position such as basement roof, roof panel is due to the erosion that is immersed in water for a long time, more easily occurs seepy question, and these positions adopt cast-in-place concrete hollow building roof often to have good technology economy advantage.Now conventional cast-in-place concrete hollow building roof does not consider the problem that hollow building cover is impervious, therefore not there is the performance ensureing the enough impermeabilities of hollow building cover, therefore, be badly in need of a kind of cast-in-situ concrete hollow slab with impermeability newly of research and solve this problem.
Summary of the invention
The object of the invention is to the above-mentioned defect for existing in the impervious technology of existing cast-in-situ hollow building roof, there is provided a kind of cast-in-situ concrete hollow slab with reliable anti-permeability performance impervious internal mold, the impervious hollowcore slab of cast-in-situ concrete of this impervious internal mold embedding has the same impermeability of equal thickness solid concrete plate.
Above-mentioned purpose of the present invention realizes by the following technical solutions: the impervious internal mold of this cast-in-situ concrete hollow slab, for being positioned over the inside of cast-in-place concrete building roof plate; Described impervious internal mold is the hollow unit adopting impermeable material to make, the surrounding sidewall of impervious internal mold is provided with the waterstop of the transverse direction stoping water to permeate along sidewall, and/or the outer wall at impervious internal mold and surrounding concrete interface scribbles the waterproof coating with block water permeance property.
Concrete, the cross sectional shape of described impervious internal mold or be circular, or be square, or be ellipse, or be polygon.
Concrete, described impervious internal mold adopts plastics or other macromolecular material or metal material to make.
Concrete, described waterstop is closed hoop projection around impervious internal mold surrounding sidewall or closed hoop groove, its cross sectional shape or be square, or be trapezoidal, or is triangle, or is polygon, or is circle, or is ellipse.
Concrete, described waterproof coating is the waterproof coating of organic material or inorganic material or nano material.
The impervious internal mold of cast-in-situ concrete hollow slab of the present invention, owing to adopting impermeable material to make, inherently has impermeability, in addition, the surrounding sidewall of impervious internal mold is provided with horizontal waterstop, have the effect stopping concrete inner pore water permeation.Moreover, also can be coated with waterproof coating on the outer wall at impervious internal mold and surrounding concrete interface, further enhance the impermeability of internal mold.Therefore, the cast-in-situ concrete hollow slab of the impervious internal mold of embedding the present invention, has the anti-permeability performance being not less than equal thickness solid slab, but weight is lighter, and concrete use amount is less; If concrete used is the water-tight concrete with certain impermeability, then this hollow floor cover plate is the impervious hollow floor cover plate with certain impermeability.And present invention process is simple, and practical, cost is low, has application prospect comparatively widely.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of the impervious hollowcore slab of cast-in-situ concrete of the impervious internal mold of embedding the present invention.
Fig. 2 is the parts transversely profile of impervious internal mold in concrete of the embodiment of the present invention 1.
Fig. 3 is the longitudinal profile of the part of impervious internal mold in concrete of the embodiment of the present invention 1.
Fig. 4 is the end view of the impervious internal mold of the embodiment of the present invention 1.
Fig. 5 is the lateral plan of the impervious internal mold of the embodiment of the present invention 1.
Fig. 6 is the transverse cross of the impervious internal mold of the embodiment of the present invention 2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
See Fig. 1, it is the plan structure schematic diagram of the impervious hollowcore slab of cast-in-situ concrete of the impervious internal mold of embedding the present invention.In Fig. 1,1 is concrete, and 2 is impervious internal mold, and the inside of the impervious hollowcore slab of cast-in-situ concrete is placed with some impervious internal molds 2.
Embodiment 1: see Fig. 2 to Fig. 5, the impervious internal mold 2 of the present embodiment is adopted made of plastic, be cross sectional shape is square hollow unit, and impervious internal mold 2 self is waterproof.The surrounding sidewall of impervious internal mold 2 is provided with the waterstop 3 of closed hoop projection, and the cross sectional shape of waterstop 3 is square; Waterstop 3 can form with its sidewall integral manufacturing when impervious internal mold 2 makes, or is bonded and fixed at the wall outer surface of impervious internal mold 2 after making separately; Waterstop 3 can stop water directly to permeate along interfacial gap by the gap location on the interface between impervious internal mold 2 and surrounding concrete, changes permeation pathway and the infiltration direction of water, can improve the anti-permeability performance at interface between impervious internal mold 2 and concrete significantly.Impervious internal mold 2 external surface scribbles the waterproof coating (not shown in FIG.) with block water permeance property, this waterproof coating is on the market can the waterproof coating of available organic material or inorganic material or nano material, this waterproof coating can make impervious internal mold 2 less with the interfacial gap of surrounding concrete, make shipwreck with infiltration, the ability of the interfacial barrier concrete inner pore water permeation therefore formed between the external surface of impervious internal mold 2 and concrete is strengthened further.
Embodiment 2: the difference of the present embodiment and embodiment 1 is, the waterstop 3 of impervious internal mold 2 is the closed hoop grooves be provided with on the surrounding sidewall of impervious internal mold 2, waterstop 3 when impervious internal mold 2 makes and its sidewall integral manufacturing form.
The construction technology of the impervious hollowcore slab of cast-in-situ concrete of the impervious internal mold of embedding the present invention is, first be that the assembling of impervious internal mold is installed with waterstop, impervious internal mold external surface waterproof coating interface processing, then the placement of impervious internal mold and anti-floating are fixed, building with closely knit of last waterproof concrete.
Claims (5)
1. the impervious internal mold of cast-in-situ concrete hollow slab, for being positioned over the inside of cast-in-place concrete building roof plate; It is characterized in that: described impervious internal mold is the hollow unit adopting impermeable material to make, the surrounding sidewall of impervious internal mold is provided with the waterstop of the transverse direction stoping water to permeate along sidewall, and/or the outer wall at impervious internal mold and surrounding concrete interface scribbles the waterproof coating with block water permeance property.
2. the impervious internal mold of cast-in-situ concrete hollow slab according to claim 1, is characterized in that: the cross sectional shape of described impervious internal mold or for circular, or be square, or is ellipse, or is polygon.
3. the impervious internal mold of cast-in-situ concrete hollow slab according to claim 1, is characterized in that: described impervious internal mold adopts plastics or other macromolecular material or metal material to make.
4. the impervious internal mold of cast-in-situ concrete hollow slab according to claim 1, it is characterized in that: described waterstop is closed hoop projection around impervious internal mold surrounding sidewall or closed hoop groove, its cross sectional shape or be square, or be trapezoidal, or be triangle, or be polygon, or be circular, or be oval.
5. the impervious internal mold of cast-in-situ concrete hollow slab according to claim 1, is characterized in that: described waterproof coating is the waterproof coating of organic material or inorganic material or nano material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957523.XA CN105569253A (en) | 2015-12-18 | 2015-12-18 | Impermeable internal formwork for cast-in-situ concrete hollow slabs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957523.XA CN105569253A (en) | 2015-12-18 | 2015-12-18 | Impermeable internal formwork for cast-in-situ concrete hollow slabs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105569253A true CN105569253A (en) | 2016-05-11 |
Family
ID=55879825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510957523.XA Pending CN105569253A (en) | 2015-12-18 | 2015-12-18 | Impermeable internal formwork for cast-in-situ concrete hollow slabs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105569253A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201011033Y (en) * | 2007-02-27 | 2008-01-23 | 鲁金明 | Inorganic high-strength polyphenyl filling internal mold structure |
| CN101413313A (en) * | 2007-10-18 | 2009-04-22 | 邱则有 | Core die for concrete filling |
| CN101413312A (en) * | 2007-10-18 | 2009-04-22 | 邱则有 | Core die for concrete filling |
| CN202416653U (en) * | 2011-12-09 | 2012-09-05 | 湖南科技大学 | Quasi-elliptic section internal mold for cast-in-place concrete hollow floor system |
| CN202660068U (en) * | 2012-06-11 | 2013-01-09 | 福建省泷澄建设集团有限公司 | Seepage-proof embedded part of drain pipe |
-
2015
- 2015-12-18 CN CN201510957523.XA patent/CN105569253A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201011033Y (en) * | 2007-02-27 | 2008-01-23 | 鲁金明 | Inorganic high-strength polyphenyl filling internal mold structure |
| CN101413313A (en) * | 2007-10-18 | 2009-04-22 | 邱则有 | Core die for concrete filling |
| CN101413312A (en) * | 2007-10-18 | 2009-04-22 | 邱则有 | Core die for concrete filling |
| CN202416653U (en) * | 2011-12-09 | 2012-09-05 | 湖南科技大学 | Quasi-elliptic section internal mold for cast-in-place concrete hollow floor system |
| CN202660068U (en) * | 2012-06-11 | 2013-01-09 | 福建省泷澄建设集团有限公司 | Seepage-proof embedded part of drain pipe |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |
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| WD01 | Invention patent application deemed withdrawn after publication |