CN106906711B - Concrete slab and preparation method thereof - Google Patents
Concrete slab and preparation method thereof Download PDFInfo
- Publication number
- CN106906711B CN106906711B CN201710287884.7A CN201710287884A CN106906711B CN 106906711 B CN106906711 B CN 106906711B CN 201710287884 A CN201710287884 A CN 201710287884A CN 106906711 B CN106906711 B CN 106906711B
- Authority
- CN
- China
- Prior art keywords
- concrete slab
- expansion deformation
- deformation joint
- plate
- shaped fixing
- 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.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a concrete slab, which comprises a hidden expansion deformation joint, wherein the hidden expansion deformation joint extends from the bottom of the concrete slab to the top of the concrete slab and does not reach the top of the concrete slab. The height of the invisible expansion deformation joint is less than or equal to 1/2 of the height of the concrete slab. The invisible expansion deformation joint is filled with a telescopic plate or a cavity formed by supporting a supporting template. The two sides of the telescopic plate or the supporting template are respectively provided with a C-shaped fixing plate, and a plurality of through holes are formed in the top of the C-shaped fixing plate. The invention also discloses a preparation method of the concrete slab with the invisible expansion deformation joint. The invention sets up the stealthy expansion deformation joint in the inferior part of the concrete slab, neither affects the preparation of the concrete slab of large-scale, guarantee its integrality, also help the cutting of the cut joint while this concrete slab is applied, make the cutting procedure simplify, it is convenient, also through setting up horizontal dowel bar and connecting rib in the concrete slab, further raise the quality of this concrete slab.
Description
Technical Field
The invention relates to the technical field of concrete slab preparation, in particular to a concrete slab and a preparation method thereof.
Background
Because of the change of the air temperature all the year round, the concrete slab can expand and contract to different degrees, so that the inside of the concrete slab can generate excessive stress, and the concrete slab is broken or arched. To avoid this drawback, the concrete slab is provided with expansion joints and contraction joints at the time of construction. At present, the expansion joint is arranged by completely cutting the concrete pavement from top to bottom through a pavement joint cutter, and dividing the whole concrete slab into a plurality of small concrete slabs. The cutting depth is deeper, time and labor are wasted, and the cutting is difficult to cut to the bottom, so that the construction quality is affected.
It is apparent that the above-mentioned conventional method for cutting joints of concrete slabs still has inconveniences and drawbacks, and further improvements are needed. How to create a new concrete slab with invisible expansion deformation joints and a preparation method thereof, and belongs to one of the important research and development subjects at present.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the concrete slab with the invisible expansion deformation joint, which is convenient for the site construction operation of the concrete slab and can well prevent the fracture or the arch expansion of the concrete slab, thereby overcoming the defects of the existing concrete slab.
In order to solve the technical problems, the invention provides a concrete slab, which comprises a hidden expansion deformation joint, wherein the hidden expansion deformation joint extends from the bottom to the top of the concrete slab and does not reach the top of the concrete slab.
As an improvement of the invention, the height of the invisible expansion deformation joint is less than or equal to 1/2 of the height of the concrete slab.
Further improved, the invisible expansion deformation joint is filled with a telescopic plate, and the telescopic plate adopts a plastic-collecting plate, a polypropylene plate, an extruded plate or a polystyrene plate.
Further improved, the invisible expansion deformation joint is a cavity formed by supporting a supporting template.
Further improved, the two sides of the telescopic plate or the supporting template are respectively provided with a C-shaped fixing plate, the height of the C-shaped fixing plate is equal to that of the telescopic plate or the supporting template, and the top of the C-shaped fixing plate is provided with a plurality of through holes.
Further improved, two sides of the invisible expansion deformation joint are respectively provided with a plurality of horizontal dowel bars, and one end of each horizontal dowel bar is connected to the side wall of the C-shaped fixing plate.
Further improved, the upper part of the invisible expansion deformation joint is provided with a plurality of connecting ribs.
The invention also discloses a preparation method of the concrete slab with the invisible expansion deformation joint, which comprises the following steps:
(1) The position of the invisible expansion deformation joint is distributed according to the size of the precast concrete slab;
(2) Fixing a telescopic plate or a supporting template at the position of the invisible expansion deformation joint, wherein the height of the telescopic plate or the supporting template is less than or equal to 1/2 of the height of the precast concrete slab, and a cavity is formed in the supporting template;
(3) Pouring concrete to a preset height to obtain the concrete slab with the invisible expansion deformation joint.
Further improved, the method for fixing the support template or the telescopic plate in the step (2) comprises the following steps:
c-shaped fixing plates are respectively arranged on two sides of the supporting template or the telescopic plate, the two C-shaped fixing plates are arranged in a mode that openings are opposite and are connected through bolts,
wherein, the top of the C-shaped fixing plate is provided with a plurality of through holes;
the support template is made of steel plates or wood plates;
the telescopic plate adopts a plastic plate, a polypropylene plate, an extruded sheet or a polystyrene plate.
Further improvement, the step (2) further comprises: and a plurality of horizontal dowel bars are respectively fixed on two sides of the two C-shaped fixing plates, and a plurality of connecting ribs are fixed on the upper parts of the two C-shaped fixing plates.
With such a design, the invention has at least the following advantages:
1. the invention sets the invisible expansion deformation joint on the lower part of the concrete slab, which does not affect the preparation of the concrete slab with large size, ensures the integrity of the concrete slab, is beneficial to the cutting of the cutting joint when the concrete slab is applied, simplifies the cutting process, is convenient and can ensure the quality of the concrete slab.
2. According to the invention, the through holes are formed in the top of the C-shaped fixing plate, so that concrete can be poured completely, and the firmness of two sides of the invisible expansion deformation joint is enhanced and the quality of the concrete slab is improved by arranging the horizontal dowel bars and the connecting ribs.
3. The preparation method of the concrete slab is simple and convenient, the preparation tool is simple, the quality of the prepared concrete slab is excellent, and the use is convenient.
Drawings
The foregoing is merely an overview of the present invention, and the present invention is further described in detail below with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic cross-sectional view of a concrete slab with a hidden expansion joint according to the present invention.
Fig. 2 is a schematic view of the structure of the C-type fixing plate for fixing the retractable plate in the concrete slab according to the present invention.
Fig. 3 is a schematic cross-sectional view of a concrete slab application with a hidden expansion joint according to the present invention.
Fig. 4 is a schematic view of the structure of the C-shaped fixing plate fixing support formwork in the concrete slab of the present invention.
Fig. 5 is a top view of the structure of the present invention for securing a retractable panel during the preparation of a concrete slab.
Detailed Description
Example 1
Referring to fig. 1, the concrete slab 1 of the present invention includes a hidden expansion deformation joint 2, and the hidden expansion deformation joint 2 extends from the bottom to the top of the concrete slab 1 and does not reach the top of the concrete slab 1. That is, the lower portion of the concrete slab 1 is provided with a hidden expansion deformation joint, the upper portion of the concrete slab is a complete concrete surface, and no joint is visible at the top.
Wherein the height of the invisible expansion deformation joint 2 is less than or equal to 1/2 of the height of the concrete slab 1, and the width thereof is 1-4 cm.
Referring to fig. 2, in this embodiment, a stretchable plate 21 is filled in the invisible expansion deformation joint 2, and the stretchable plate 21 is made of a plastic plate, a polypropylene plate, an extruded sheet, a polystyrene plate, or the like. Therefore, the invisible expansion deformation joint has certain expansibility, can meet the characteristics of thermal expansion and cold contraction of the concrete slab, reduces the thickness of the cut concrete slab, and is convenient to operate and high in efficiency.
Referring to fig. 3, when the concrete slab is actually used, the lower part of the concrete slab is cut downwards from the top of the concrete slab 1 according to the position of the invisible expansion deformation joint 2, and the cutting joint 3 is only required to be cut to the invisible expansion deformation joint 2, so that the cutting work is greatly reduced, the labor intensity is lightened, and the quality of the concrete slab is also ensured. In a preferred embodiment, the included angles of the upper edges of the cutting slits 3 at the upper part of the concrete slab are all arranged into arc-shaped or inclined structures 4, and soft materials such as PU glue or asphalt ointment are filled in the cutting slits 3.
The bottom of the slab 1 may also be provided with a cushion 7, which cushion 7 facilitates the fixing of the retractable plate 21.
The structure for fixing the retractable plate 21 in this embodiment is as follows: c-shaped fixing plates 5 are respectively disposed at both sides of the stretchable panel 21, the height of the C-shaped fixing plates 5 is equal to the height of the stretchable panel 21, and the two C-shaped fixing plates 5 are disposed in opposite openings and are connected by bolts, as shown in fig. 2. And the top of the C-shaped fixing plate 5 is provided with a plurality of through holes, which is favorable for complete concrete pouring and enhances the bonding of the concrete inside and outside the opening of the C-shaped fixing plate.
The more preferred embodiments are: a plurality of horizontal dowel bars 6 are respectively arranged on two sides of the invisible expansion deformation joint 2, one end of each horizontal dowel bar 6 is connected to the inner side of the side wall of the C-shaped fixed plate 5 and is close to the middle of the concrete slab 1, as shown in figures 1 and 3.
In order to further strengthen the firmness of the concrete slab, the upper part of the invisible expansion deformation joint 2 is provided with a plurality of connecting ribs 8. The connecting rib 8 is preferably arranged at the top end of the C-shaped fixing plate 5, and the width of the connecting rib 8 is the same as the width of the horizontal dowel bars 6 at two sides of the invisible expansion deformation joint 2, as shown in fig. 1 and 3.
Example two
The second embodiment is different from the first embodiment in that: the invisible expansion deformation joint 2 is a cavity formed by supporting a supporting template 22, and the supporting template 22 is made of steel plates or plastic materials, as shown in fig. 4. When the upper part of the concrete slab is cut, the top of the supporting template 22 is cut and cut, so that the function of the invisible expansion deformation joint can be realized. Other portions or structures are the same as those of the first embodiment, and will not be described here again.
The preparation method of the concrete slab 1 with the invisible expansion deformation joint 2 comprises the following steps:
(1) Presetting a cushion layer with a proper size according to the size of the precast concrete slab, and arranging the position of an invisible expansion deformation joint on the cushion layer;
(2) Fixing a supporting template 22 or a telescopic plate 21 at the position of the invisible expansion deformation joint 2, wherein the height of the supporting template 22 or the telescopic plate 21 is less than or equal to 1/2 of the height of the precast concrete slab, and the width of the supporting template 22 or the telescopic plate 21 is 1-4 cm, as shown in figure 5;
wherein, the supporting template 22 is made of steel plates or wood plates, and the inside of the invisible expansion deformation joint supporting template is a cavity; the invisible expansion deformation plate adopts a plastic-collecting plate, a polypropylene plate, an extruded sheet or a polystyrene plate;
the method for fixing the support template 22 or the telescopic plate 21 is as follows:
c-shaped fixing plates 5 are respectively arranged on two sides of the supporting template 22 or the telescopic plate 21, and the two C-shaped fixing plates 5 are arranged in a mode that openings are opposite and are connected through bolts;
and a plurality of horizontal dowel bars 6 are respectively fixed on two sides of the two C-shaped fixing plates 5, and a plurality of connecting ribs 8 are fixed on the tops of the two C-shaped fixing plates 5.
(3) Pouring concrete to a preset height to obtain the concrete slab with the invisible expansion deformation joint.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present invention.
Claims (8)
1. The concrete slab is characterized by being prefabricated and formed, the concrete slab comprises an invisible expansion deformation joint, the invisible expansion deformation joint extends from the bottom to the top of the concrete slab and does not reach the top of the concrete slab, the height of the invisible expansion deformation joint is less than or equal to 1/2 of the height of the concrete slab, the upper part of the concrete slab is a complete concrete surface, no seam gap is visible at the top of the concrete slab, and the concrete slab is cut downwards from the top of the concrete slab according to the position of the invisible expansion deformation joint when in use, and the cut seam is obtained after the invisible expansion deformation joint is cut;
the hidden expansion deformation joint is filled with a telescopic plate or a cavity formed by supporting a supporting template, two sides of the telescopic plate or the supporting template are respectively provided with a C-shaped fixing plate, the height of the C-shaped fixing plates is equal to that of the telescopic plate or the supporting template, and the two C-shaped fixing plates are arranged in a mode that openings are opposite, and are fixedly connected through bolts.
2. The concrete slab of claim 1, wherein the telescoping panels are made from poly plastic, polypropylene, extruded or polystyrene.
3. The concrete slab of claim 1, wherein the top of the C-shaped retainer plate is provided with a plurality of through holes.
4. A concrete slab according to claim 3, wherein a plurality of horizontal dowel bars are respectively arranged on two sides of the invisible expansion deformation joint, and one end of each horizontal dowel bar is connected to the side wall of the C-shaped fixing plate.
5. A concrete slab according to claim 3, wherein the upper part of the invisible expansion deformation joint is provided with a plurality of connecting ribs.
6. A method for preparing a concrete slab with an invisible expansion deformation joint, which is characterized by comprising the following steps:
(1) The position of the invisible expansion deformation joint is distributed according to the size of the precast concrete slab;
(2) Fixing a telescopic plate or a supporting template at the position of the invisible expansion deformation joint, wherein the height of the telescopic plate or the supporting template is less than or equal to 1/2 of the height of the precast concrete slab, and a cavity is formed in the supporting template;
c-shaped fixing plates are respectively arranged on two sides of the supporting template or the telescopic plate, and the two C-shaped fixing plates are arranged in a mode that openings are opposite and are connected through bolts;
(3) Pouring concrete to a preset height to obtain the concrete slab with the invisible expansion deformation joint.
7. The method for preparing concrete slab according to claim 6, wherein the top of the C-shaped fixing plate in the step (2) is provided with a plurality of through holes;
the support template is made of steel plates or wood plates;
the telescopic plate adopts a plastic plate, a polypropylene plate, an extruded sheet or a polystyrene plate.
8. The method for preparing a concrete slab according to claim 7, wherein the step (2) further comprises: and a plurality of horizontal dowel bars are respectively fixed on two sides of the two C-shaped fixing plates, and a plurality of connecting ribs are fixed on the upper parts of the two C-shaped fixing plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287884.7A CN106906711B (en) | 2017-04-27 | 2017-04-27 | Concrete slab and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287884.7A CN106906711B (en) | 2017-04-27 | 2017-04-27 | Concrete slab and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106906711A CN106906711A (en) | 2017-06-30 |
| CN106906711B true CN106906711B (en) | 2023-04-25 |
Family
ID=59209884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710287884.7A Active CN106906711B (en) | 2017-04-27 | 2017-04-27 | Concrete slab and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106906711B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB966739A (en) * | 1962-03-29 | 1964-08-12 | Tretol Servicised Ltd | Improvements in or relating to a filler assembly for use in expansion joints of concrete structures |
| KR100865523B1 (en) * | 2007-05-07 | 2008-10-27 | 주식회사 삼보기술단 | A drainage device of expansion- contraction and method for establishment thereof |
| CN100396859C (en) * | 2007-07-19 | 2008-06-25 | 河北建设集团有限公司 | Pouring concrete separating crack structure and construction method thereof |
| CN101725097B (en) * | 2009-12-02 | 2012-01-04 | 中铁八局集团第一工程有限公司 | Method for constructing expansion joints of foundation in plate type ballastless track and templates for expansion joints |
| KR100995060B1 (en) * | 2009-12-22 | 2010-11-18 | 주식회사 한국종합기술 | A joint device and construction method of concrete structure |
| CN201835215U (en) * | 2010-08-26 | 2011-05-18 | 刘建华 | Die plate for expansion joint in construction of concrete pavement |
| CN104294729A (en) * | 2014-08-25 | 2015-01-21 | 四川金锋建设有限公司 | Method for constructing concrete pavement |
| CN105888081B (en) * | 2016-04-13 | 2018-08-17 | 中国十七冶集团有限公司 | A kind of pre-buried deformation joint construction method of prefabricated superimposed sheet |
| CN207193688U (en) * | 2017-04-27 | 2018-04-06 | 皇玉彬 | A kind of concrete slab |
-
2017
- 2017-04-27 CN CN201710287884.7A patent/CN106906711B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106906711A (en) | 2017-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20020043045A1 (en) | Modular panels for building construction | |
| CN105064546A (en) | Integral wall and construction process thereof | |
| CN105887660B (en) | A kind of perforated plate connector with boot-shaped slot, girder steel and method | |
| CN105178427A (en) | Method for integrally forming and building houses | |
| CN206128374U (en) | A body structure right angle wall body mortar module and right angle wall body of pouring into a mould with wall body module | |
| CN110625786B (en) | Concrete slab construction method based on steel bar welding net and cement pressure plate | |
| CN209799355U (en) | Basement single-side formwork system | |
| CN106906711B (en) | Concrete slab and preparation method thereof | |
| CN106854906A (en) | Connection cast-in-situ steel reinforced concrete assembled wall in a kind of double-template assembled | |
| CN207794599U (en) | A kind of aluminum alloy mould plate wall bottom caulking joint constructing structure | |
| CN204781440U (en) | Whole wall | |
| CN212802313U (en) | Expansion joint structure of waterproof protection layer of building roof | |
| CN201106234Y (en) | Heat preserving wall composed of cement foam concrete hollow wall board | |
| CN210827528U (en) | Self-stabilizing structural slab forming die for building pit | |
| CN102979026B (en) | Sidewalk having top cover and semi-prefabricated building method thereof | |
| CN210317338U (en) | Template system for hydraulic tunnel side wall and bottom plate lining construction | |
| CN217128561U (en) | Foaming building external thermal insulation structure with preset fixing part | |
| CN102926534B (en) | Detachable building formwork for hollow floor slab and ribbed floor slab | |
| CN215291458U (en) | Large-area concrete dividing joint forming tool | |
| CN206157957U (en) | Body structure stalk body mortar module and wall body of pouring into a mould with wall body module | |
| CN212926628U (en) | Assembled exempts from to prop up floor | |
| CN207878303U (en) | Cement concrete slab and bright culvert bridging arrangement | |
| CN219158003U (en) | Waterproof structure of lattice column penetrating structure plate | |
| CN208792080U (en) | A kind of pre-buried partitioning slot material of road surface making finished product | |
| KR101715675B1 (en) | Reinforcement block assembly having block for construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |