CN114164975B - Concrete bearing base layer and construction process thereof - Google Patents
Concrete bearing base layer and construction process thereof Download PDFInfo
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- CN114164975B CN114164975B CN202111636484.5A CN202111636484A CN114164975B CN 114164975 B CN114164975 B CN 114164975B CN 202111636484 A CN202111636484 A CN 202111636484A CN 114164975 B CN114164975 B CN 114164975B
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- concrete
- base layer
- concrete base
- main body
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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
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a concrete bearing base layer and a construction process thereof, belonging to the technical field of building construction, wherein the concrete bearing base layer comprises a concrete base layer main body and further comprises: the V-shaped groove is fixedly arranged at the bottommost part of the concrete base layer main body and used for releasing internal stress; the isolation layer is attached to the wall surface on the periphery of the concrete base layer main body and is used for isolating the concrete base layer main body from the wall surface; the reinforcement is laid in the concrete base layer main body in a single-layer bidirectional manner, and is used for improving tensile strength and compressive strength; the anti-warping piece is fixedly arranged on the inner side of the concrete base layer main body and further comprises an elevation piece and a crack guide; the bearing base layer has the advantages of high compressive strength, good crack resistance, stable performance, environmental protection, strong durability and the like, and solves the quality problems of easiness in cracking, tilting, hollowing and the like of the existing concrete bearing base layer.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a concrete bearing base layer and a construction process thereof.
Background
The method is used for the position with higher requirements on the bearing strength of the ground base layer and higher requirements on stability and flatness, and provides the best base condition for the subsequent process and materials of surface construction, so that the design effect is realized, and the comprehensive performance indexes such as practicability, durability, safety and the like are achieved.
The existing building market is used for understanding and positioning a base layer, and construction technology and construction materials, and only remains in the process of leveling, leveling and filling the base layer, so that important technical indexes such as compression resistance and crack resistance are not required, and quality problems such as cracking, warping and hollowing are caused after the construction of an upper surface layer material is finished, and huge losses are caused for owners.
Therefore, the construction field is in urgent need of a quality base course practice, and the base course practice is led and smoothed to the right knowledge of the base course, namely, a ground base course material and a process practice which have high compressive strength, good crack resistance, no deformation or warping, stable performance and controllable shrinkage.
Disclosure of Invention
In view of urgent industrial demands, the invention provides a solution to realize the ground base material with high compressive bearing strength, good crack resistance, no deformation or warping, stable performance and controllable shrinkage and the process method.
The concrete bearing base layer and the construction process are suitable for indoor and outdoor ground, such as: the construction process is used for providing other surface layer materials required by surface layer construction design.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a concrete load bearing substrate comprising a concrete substrate body, further comprising:
the V-shaped groove is fixedly arranged at the bottommost part of the concrete base layer main body and used for releasing internal stress;
the isolation layer is attached to the wall surface on the periphery of the concrete base layer main body and is used for isolating the concrete base layer main body from the wall surface;
the reinforcement is laid in the concrete base layer main body in a single-layer bidirectional manner, and the distance between adjacent reinforcement is 175mm for improving tensile strength and compressive strength;
the anti-warping piece is fixedly arranged on the inner side of the concrete base layer main body;
the elevation piece is fixedly arranged in the middle of the concrete base body and is used as an elevation reference point;
and the crack initiation is arranged in the concrete base body at the upper side of the V-shaped groove and is used for avoiding other irregular cracks caused by shrinkage.
As a further scheme of the invention: the isolation layer adopts elastic material, makes concrete foundation layer main part and wall form the isolation, and when the shrinkage or the inflation of concrete foundation layer main part, the isolation layer absorbs deformation energy to make concrete foundation layer main part and wall do not take place mutual extrusion and destroy.
As a further scheme of the invention: the reinforcement is 8mm diameter screw steel, the concrete base layer main body adopts commercial concrete with the label of C30, the reinforcement and the concrete in the concrete base layer main body form bond strength, and tensile strength and compressive strength are improved.
The construction process of the concrete bearing base layer comprises the following steps:
determining a construction thickness A;
presetting a V-shaped groove, and fixedly mounting the V-shaped groove at the bottommost part of the concrete base layer main body to form an occupied cavity in the concrete base layer main body;
attaching the isolation layer to the wall surface on the periphery of the concrete base layer main body to form isolation between the wall surface and the concrete base layer main body;
scientifically paving reinforcing bars in the concrete base layer main body, wherein a single layer is bidirectional, the distance is 175mm, the reinforcing bars and the concrete base layer main body form bond force, and the tensile strength and the compressive strength are improved;
the anti-tilting piece is arranged on the inner side of the concrete base body;
the elevation piece is fixedly arranged in the middle of the concrete base body, and when concrete of the concrete base body is poured, the elevation piece is used as an elevation reference point, so that the horizontal elevation and the flatness of the finished surface reach the required requirements;
at the position of reserving the V-shaped groove, corresponding to the upper surface of the concrete base body, the crack is cut downwards, so that irregular saw-tooth shapes appear when the concrete base body at the position is prevented from being cracked when being contracted, the crack is neat and straight, and the facing treatment of the concrete base body is facilitated.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a concrete bearing base layer and a construction process thereof, wherein the concrete bearing base layer comprises V-shaped grooves, isolating layers, reinforcing bars, anti-warping pieces, elevation pieces and crack lines, and compared with the traditional self-leveling, stone, ceramic tiles, mortar and other materials, the concrete bearing base layer has the advantages of high compressive strength, good crack resistance, stable performance, environmental protection, strong durability and the like.
Drawings
Fig. 1 is a schematic structural view of a concrete load-bearing substrate according to an embodiment of the present invention.
Reference numerals: 1-V-shaped groove, 2-isolation layer, 3-reinforcement, 4-anti-warping piece, 5-elevation piece, 6-crack initiation and 7-concrete base layer main body.
Detailed Description
As an embodiment of the present invention, please refer to fig. 1.
1. And determining the construction thickness A.
The normal indoor floor construction thickness is preferably 50-100mm and is smaller than 50mm, the tensile strength is small, the shrinkage body blocks are smaller, the monomer blocks are preferably not more than 10-20 square meters, the thickness of the monomer blocks is more than 60mm, the relative benign values such as tensile strength fracture resistance and the like become larger, and the functional bearing capacity, whether the floor is warm or not and the space area is more than 100 square meters are required to be considered.
2. A V-groove 1 is installed.
The height value of the V-shaped groove 1 is H, and the formula for calculating the H value is as follows: h=a×0.375, and H value is proportional to casting thickness a. The V-shaped groove 1 is made of galvanized steel sheet with thickness of 1.0mm, and the installation method adopts 1:2.5 cement mortar is filled in the cavity for fixing by dotting, the two wings are covered with mortar with the thickness of 10mm to wrap the supporting legs, and then the residual materials on the two sides are cleaned.
When the position of the shrinkage joint is set, straight joints are considered, the Chinese character 'pin-shaped' and 'seven' -shaped staggered joint shapes cannot appear, namely, each block is square through-joint, and the length-width ratio is not more than 1:2.
3. the barrier layer 2 is installed.
The isolation layer 2 is made of elastic materials, a rubber plastic insulation board or an extrusion molding insulation board with the thickness of 10-20mm is used, a strip board with the required width is cut according to the pouring thickness H, an adhesive material is used for adhering to the wall edge and the column edge, the concrete used for pouring the concrete base layer main body 7 and peripheral materials form an isolation space, and when shrinkage and deformation are generated, the newly poured concrete base layer main body 7 can shrink freely and is not affected; an important advantage is the prevention of water absorption by the wall root.
4. And installing reinforcing bars 3.
The reinforcing bars 3 are made of national standard HRB400 screw thread steel with the diameter of 8mm, the arrangement interval D is 175mm, the single-layer bidirectional binding is carried out, the reinforcing bars are adopted around the peripheral wall edge and the V-shaped groove 1, the arrangement interval E is 30mm, and the reinforcing bars are padded up by a cushion block after the binding of the reinforcing bars is finished, so that the reinforcing bars are positioned at the center position of the casting thickness H.
5. And installing an anti-tilting member 4.
The anti-tilting is a forced fixing measure adopted for preventing the surface of the concrete base body 7 from tilting, adopts national standard HPB300 smooth round steel bars with the diameter of 8mm, each length is 400mm, the arrangement interval is 700mm, the positions are at the periphery wall edges, the column edges and the upper parts of the V-shaped grooves 1, the periphery wall edges and the column edges are perforated by electric hammers, the inner dimension of the inserted wall is F=100 mm, the exposed dimension is G=300 mm, and the exposed tail ends are firmly bound with the reinforcing ribs in the reinforcing ribs 3 to avoid loosening; on the upper part of the V-shaped groove 1, a conductive anti-warping rib is placed in the middle, binding is firm between two sides and the reinforcing bars 3, and if the rib is light, the expansion bolts can not be placed in the wall root by punching holes on the structural ground along the wall root, and the distance is 1000mm.
6. And mounting elevation pieces 5.
The elevation piece 5 is for being used for controlling required reference standard piece of roughness when pouring, and elevation piece 5 adopts the net to distribute, and control the interval and be 2000mm, scrapes the thick stick and uses this as the datum point to carry out super flat when pouring, makes surface smoothness reach the control requirement, and elevation piece 5 adopts 1:2.5 cement mortar is manufactured into a cylinder with the diameter of 150mm, dust is cleaned up on the bottom surface of the standard block, and a cement paste interface is painted to be wet, so that the bonding is firm and stable, and the level line is checked after the completion of the standard block, so that the standard is ensured to be accurate.
7. The slit 6 is cut.
And paying off the upper part of the position corresponding to the V-shaped groove 1 within about 24-36 hours after concrete pouring is finished, and using a marble cutter, wherein the cutting depth is represented by C, and the calculation formula of the C value is as follows: c= (a-H)/2, i.e. cut half the way into the upper part of V-groove 1, the surface can split according to the slit position when contracting, releasing the stress; the part of the lower part which is not cut is connected with the anti-tilting system, so that the left and right tilting is effectively prevented.
To sum up: the invention relates to a concrete bearing base layer and a construction process thereof, wherein the concrete bearing base layer comprises a V-shaped groove 1, an isolation layer 2, reinforcing bars 3, an anti-warping piece 4, an elevation piece 5 and a crack 6, and the concrete bearing base layer has the advantages of high compressive strength, good crack resistance, stable performance, environmental protection, strong durability and the like.
Claims (5)
1. A concrete load bearing substrate comprising a concrete substrate body, further comprising:
the V-shaped groove is fixedly arranged at the bottommost part of the concrete base layer main body and is used for naturally separating and releasing internal stress in the concrete to a fixed extent;
the isolation layer is attached to the wall surface on the periphery of the concrete base layer main body and is used for isolating the concrete base layer main body from the wall surface;
the reinforcement is laid in the concrete base layer main body in a single-layer bidirectional manner, and the distance between adjacent reinforcement is 175mm for improving tensile strength and compressive strength;
the anti-warping piece is fixedly arranged at the edge of the concrete base layer main body and is used for clinging to the structural concrete base layer to prevent the concrete base layer from warping and deforming;
the elevation piece is fixedly arranged in the middle of the concrete base body and is used as an elevation reference point;
the crack initiation is arranged in the concrete base body at the upper side of the V-shaped groove and is used for avoiding other irregular cracks caused by shrinkage;
the isolation layer adopts elastic material, makes concrete foundation layer main part and wall form the isolation, and when the shrinkage or the inflation of concrete foundation layer main part, the isolation layer absorbs deformation energy to make concrete foundation layer main part and wall do not take place mutual extrusion and destroy.
2. The concrete bearing base layer according to claim 1, wherein the reinforcing bars are 8mm diameter screw steel, the concrete base layer main body adopts commercial concrete with a reference number of C30, and the reinforcing bars and the concrete in the concrete base layer main body form bond force, so that the tensile strength and the compressive strength are improved.
3. The concrete load-bearing substrate according to claim 1, wherein the warping prevention piece is a national standard HPB300 plain round steel bar with the diameter of 8 mm.
4. A process for constructing a concrete load-bearing substrate according to any one of claims 1-2, comprising the steps of:
determining a construction thickness A;
presetting a V-shaped groove, and fixedly mounting the V-shaped groove at the bottommost part of the concrete base layer main body to form an occupied cavity in the concrete base layer main body;
attaching the isolation layer to the wall surface on the periphery of the concrete base layer main body to form isolation between the wall surface and the concrete base layer main body;
scientifically paving reinforcing bars in the concrete base layer main body, wherein a single layer is bidirectional, the distance is 175mm, the reinforcing bars and the concrete base layer main body form bond force, and the tensile strength and the compressive strength are improved;
the anti-warping piece is arranged at the edge of the concrete base body and is used for clinging to the structural concrete base and preventing the concrete base from warping and deforming;
the elevation piece is fixedly arranged in the middle of the concrete base body, and when concrete of the concrete base body is poured, the elevation piece is used as an elevation reference point, so that the horizontal elevation and the flatness of the finished surface reach the required requirements;
at the position of reserving the V-shaped groove, corresponding to the upper surface of the concrete base body, the crack is cut downwards, so that irregular saw-tooth shapes appear when the concrete base body at the position is prevented from being cracked when being contracted, the crack is neat and straight, and the facing treatment of the concrete base body is facilitated.
5. The construction process for a concrete load-bearing substrate according to claim 4, wherein the elevation pieces are distributed in a grid in the concrete substrate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111636484.5A CN114164975B (en) | 2021-12-29 | 2021-12-29 | Concrete bearing base layer and construction process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111636484.5A CN114164975B (en) | 2021-12-29 | 2021-12-29 | Concrete bearing base layer and construction process thereof |
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| Publication Number | Publication Date |
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| CN114164975A CN114164975A (en) | 2022-03-11 |
| CN114164975B true CN114164975B (en) | 2023-07-25 |
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| CN202111636484.5A Active CN114164975B (en) | 2021-12-29 | 2021-12-29 | Concrete bearing base layer and construction process thereof |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1144006A (en) * | 1997-07-30 | 1999-02-16 | Hayakawa Rubber Co Ltd | Concrete joint construction and manufacturing thereof |
| JP2000274007A (en) * | 1999-03-26 | 2000-10-03 | Hitachi Zosen Corp | Hybrid panel, its faying structure and watertight tool used for it |
| JP2006052549A (en) * | 2004-08-10 | 2006-02-23 | Hayakawa Rubber Co Ltd | Crack inducing joint structure and decorative joint member |
| JP4888278B2 (en) * | 2007-08-27 | 2012-02-29 | 積水ハウス株式会社 | Base ant structure |
| CN109811907A (en) * | 2019-02-16 | 2019-05-28 | 马鞍山斯博尔机械技术服务有限公司 | Building waterproof coil a kind of anti-aging and convenient for being laid with |
| CN111379418B (en) * | 2020-03-25 | 2022-03-15 | 广东现代建筑设计与顾问有限公司 | Overlong concrete structure without seams and construction method thereof |
| CN111636646A (en) * | 2020-06-24 | 2020-09-08 | 王喜林 | Composite heat-preservation sound-insulation floor system and construction method thereof |
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