CN110206333A - A kind of carbon fiber mesh is used to reinforce the method and RC two-way slab of RC two-way slab - Google Patents
A kind of carbon fiber mesh is used to reinforce the method and RC two-way slab of RC two-way slab Download PDFInfo
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- CN110206333A CN110206333A CN201910508420.3A CN201910508420A CN110206333A CN 110206333 A CN110206333 A CN 110206333A CN 201910508420 A CN201910508420 A CN 201910508420A CN 110206333 A CN110206333 A CN 110206333A
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- Prior art keywords
- carbon fiber
- fiber mesh
- layer
- mortar
- way slab
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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
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
-
- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
This application discloses method and RC two-way slab that a kind of carbon fiber mesh is used to reinforce RC two-way slab, reinforcement means is the following steps are included: RC two-way slab basal plane is handled；Mortar mixing；Smear internal layer polymer mortar；It is laid with carbon fiber mesh；Smear outer layer copolymer mortar；Sprinkling maintenance.The RC two-way slab fire protecting performance that method of the invention is reinforced is good, and construction is experienced, and has a wide range of application, and structural strength is high.
Description
Technical field
The present disclosure relates generally to build reinforcement technique field more particularly to a kind of carbon fiber mesh for reinforcing RC two-way slab
Method and RC two-way slab.
Background technique
From in the middle of the 19th century, armored concrete starts to apply in building trade, due to concrete and bar material performance
It continuously improves, the progress of structural theory construction technology rapidly develops reinforced concrete structure, answers extensively at present
For industry and the field of civil engineering such as civil buildings, bridge, tunnel, mine and water conservancy, harbour.
The research of the durability of concrete structure is the mixed of an important problem, especially China coast and offshore area
Xtah Crude Clay structure, the corrosion due to marine environment to concrete, the especially corrosion of reinforcing bar and the earlier period damage for causing structure have become
For the major issue in engineering, the structure originally damaged needs that a large amount of financial resources is spent to repair reinforcement, or even causes to stop work
The huge economic losses of halt production.Especially in marine environment, western salty area and the region for shedding anti-cryosel, infrastructure
Serious corrosion.
Reinforced concrete building occupies very big ratio in China's civil buildings, many buildings due to throughout the year in bad repair,
Cause Lack of support, shock resistance that cannot reach the requirement provided fortification against earthquakes, while proceeding from our national conditions, that rebuilds comprehensively can
Energy property is very low.If effective method can be taken effectively to repair the degree of injury expansion evaluation of concrete structure
It reinforces, inhibits further expanding for damage, so that it may the service life of extending structure.
Carbon fiber-based composite material has been widely used for the reparation of building and structure changes due to its excellent mechanical performance
In making.Carbon fiber has many advantages, such as high specific strength, specific modulus, light and resistant to chemical etching, therefore becomes the first choice of reinforcement material,
What application was most at present is the composite material that carbon fibre fabric and structural adhesive are constituted.Due to its excellent corrosion resistant spy
Property, industry, which is reinforced, in building is widely used.
Armoured concrete slab not only plays the role of support to building, also plays the extraneous hot and cold air of isolation, guarantees room
The stable effect of interior temperature.Carbon fiber-based composite material can provide effective support for building masonry wall, share wall and held
The load received.But structural adhesive heat distortion temperature is low, when room temperature is high or fire condition, structural adhesive pole occurs
Vulnerable, the bearing capacity of carbon fiber-based composite material system significantly declines.In addition to this, carbon fiber board is suitable for local add
Gu and unobvious and with high costs for the consolidation effect for building armoured concrete slab used.Carbon fiber board wants basal plane
Ask high, the appearance for the problems such as easily causing bulge of constructing in the case that basal plane is uneven or basal plane is moist.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, it is two-way for reinforcing RC to be intended to provide a kind of carbon fiber mesh
The method and RC two-way slab of plate are to solve the above problems.
Purpose according to the present invention provides a kind of method that carbon fiber mesh is used to reinforce RC two-way slab, including following step
It is rapid:
The floating ash of the RC two-way slab basal plane is removed, then carries out dabbing processing to basal plane by the processing of RC two-way slab basal plane,
After the completion of dabbing processing, basal plane is cleaned out, applies one layer of epoxy group interfacial agents in the RC two-way slab basal plane；
The former material of polymer mortar is sufficiently stirred according to the match ratio of design, stirs evenly standby by mortar mixing
With；
Smear internal layer polymer mortar, the epoxy group interfacial agents to apply in the RC two-way slab basal plane processing step
After standing a period of time, before dry to touch, the polymer mortar spare in the mortar mixing step is uniformly smeared
Internal layer polymer mortar is formed in the RC two-way slab basal plane；
It is laid with carbon fiber mesh, the carbon fiber mesh cut is tiled to the surface of the internal layer polymer mortar and is formed
First layer carbon fiber mesh, when laying, guarantees that the first layer carbon fiber mesh tenses, then in first layer carbon fiber mesh table
One layer of polymer mortar is smeared in face, forms middle layer polymer mortar, then be laid on the surface of the middle layer polymer mortar
Second layer carbon fiber mesh, when laying, guarantee that the second layer carbon fiber mesh tenses；
Outer layer copolymer mortar is smeared, reaches initial set to the internal layer polymer mortar and the middle layer polymer mortar
Afterwards, one layer of polymer mortar is smeared on the surface of the second layer carbon fiber mesh form outer layer copolymer mortar；
Sprinkling maintenance carries out sprinkling maintenance to age on the surface of the outer layer copolymer mortar.
Preferably, the smearing thickness for smearing the internal layer polymer mortar in internal layer polymer mortar step is 4-
6mm。
Preferably, the first layer carbon fiber mesh being laid in carbon fiber mesh step and the second layer carbon fiber
Dimension grid is all made of lapped layup, and overlapped, and width is 18-22cm.
Preferably, the smearing thickness of the middle layer polymer mortar being laid in carbon fiber mesh step is 2-3mm.
Preferably, the smearing thickness for smearing the outer layer copolymer mortar in outer layer copolymer mortar step is 7-
8mm。
Purpose according to the present invention, additionally provides a kind of RC two-way slab, and the RC two-way slab is using above-mentioned carbon fiber
The method that grid is used to reinforce RC two-way slab carries out consolidation process.
In terms of existing technologies, the beneficial effect of the application is:
The method that the carbon fiber mesh of the application is used to reinforce RC two-way slab replaces structural adhesive using polymer mortar,
It is good due to containing inorganic material, the fire protecting performances such as a large amount of quartz sands in polymer mortar.Polymer mortar is as reinforcing
It is high effectively to have played carbon fibre fabric lightweight for structural matrix, backing material of the carbon fiber mesh as reinforcement material intrinsic silicon
Strong and polymer mortar fireproof advantage.
In addition to this, polymer mortar is at low cost compared to for structure glue, construction experience is good and can apply in basal plane
Under not gentle moist operating condition.
Therefore the RC two-way slab fire protecting performance of method preparation provided by the invention is good, and construction is experienced, has a wide range of application, tying
Structure intensity is high.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the process signal for the method that a kind of carbon fiber mesh provided by the embodiments of the present application is used to reinforce RC two-way slab
Figure.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to FIG. 1, embodiments herein provides a kind of method that carbon fiber mesh is used to reinforce RC two-way slab, packet
Include following steps:
The floating ash of RC two-way slab basal plane is removed, then carries out dabbing processing to basal plane by the processing of S11:RC two-way slab basal plane,
After the completion of dabbing processing, basal plane is cleaned out, applies one layer of epoxy group interfacial agents, epoxy group interfacial agents in RC two-way slab basal plane
Increase the cementability of polymer mortar and concrete surface, experiment proves that it is two-way to reinforce the RC coated with epoxy group interfacial agents
For plate compared with uncoated epoxy group interfacial agents, bending strength improves 53.2%；
S12: the former material of polymer mortar is sufficiently stirred according to the match ratio of design, stirs evenly by mortar mixing
It is spare afterwards, it is good containing inorganic material, fire protecting performances such as a large amount of quartz sands in polymer mortar；
S13: internal layer polymer mortar, the epoxy group interfacial agents to apply in the RC two-way slab basal plane processing step are smeared
After standing a period of time, before dry to touch, it is two-way that polymer mortar spare in mortar mixing step is uniformly applied to RC
Plate basal plane formed internal layer polymer mortar, control internal layer polymer mortar with a thickness of 5mm；
S14: being laid with carbon fiber mesh, and the carbon fiber mesh cut is tiled to the surface of internal layer polymer mortar and is formed
First layer carbon fiber mesh guarantees that first layer carbon fiber mesh tenses when laying, two pieces of adjacent first layer carbon fiber mesh it
Between overlap connection, lap width 20cm；Then one layer of polymeric mortar is smeared on first layer carbon fiber mesh surface, forms middle layer
Polymer mortar, control middle layer polymer mortar with a thickness of 3mm；The surface of polymer mortar is laid with second layer carbon in middle level again
Fiber mesh guarantees that second layer carbon fiber mesh tenses when laying, the company of overlap joint between two pieces of adjacent second layer carbon fiber mesh
It connects, lap width 20cm, backing material of the carbon fiber mesh as reinforcement material intrinsic silicon has effectively played carbon fibre fabric
The characteristic of high-strength light, ruggedized construction intensity is higher, experiment proves that being reinforced using carbon fiber mesh to RC two-way slab, plate
Body bending strength improves 43.8% compared with unguyed sample；
S15: smearing outer layer copolymer mortar, after internal layer polymer mortar and middle layer polymer mortar reach initial set,
The surface of second layer carbon fiber mesh smears one layer of polymeric mortar and forms outer layer copolymer mortar, controls outer layer copolymer mortar
With a thickness of 7mm；
S16: sprinkling maintenance carries out sprinkling maintenance to age on the surface of outer layer copolymer mortar.
In addition, embodiments herein additionally provides a kind of RC two-way slab, the RC two-way slab is using above-mentioned carbon fiber
The method that dimension grid is used to reinforce RC two-way slab carries out consolidation process.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (6)
1. a kind of method that carbon fiber mesh is used to reinforce RC two-way slab, which comprises the following steps:
The floating ash of the RC two-way slab basal plane is removed, then carries out dabbing processing, dabbing to basal plane by the processing of RC two-way slab basal plane
After the completion of processing, basal plane is cleaned out, applies one layer of epoxy group interfacial agents in the RC two-way slab basal plane；
The former material of polymer mortar is sufficiently stirred mortar mixing according to the match ratio of design, spare after mixing evenly；
Internal layer polymer mortar is smeared, the epoxy group interfacial agents to apply in the RC two-way slab basal plane processing step are stood
After a period of time, before dry to touch, the polymer mortar spare in the mortar mixing step is uniformly applied to institute
It states RC two-way slab basal plane and forms internal layer polymer mortar；
It is laid with carbon fiber mesh, the carbon fiber mesh cut tiling is formed first to the surface of the internal layer polymer mortar
Layer carbon fiber mesh, when laying, guarantee that the first layer carbon fiber mesh tenses, and then apply on first layer carbon fiber mesh surface
One layer of polymer mortar is smeared, forms middle layer polymer mortar, then be laid with second on the surface of the middle layer polymer mortar
Layer carbon fiber mesh, when laying, guarantee that the second layer carbon fiber mesh tenses；
Outer layer copolymer mortar is smeared, after the internal layer polymer mortar and the middle layer polymer mortar reach initial set,
It smears one layer of polymer mortar and forms outer layer copolymer mortar in the surface of the second layer carbon fiber mesh；
Sprinkling maintenance carries out sprinkling maintenance to age on the surface of the outer layer copolymer mortar.
2. the method that carbon fiber mesh according to claim 1 is used to reinforce RC two-way slab, which is characterized in that the smearing
The smearing thickness of the internal layer polymer mortar in internal layer polymer mortar step is 4-6mm.
3. the method that carbon fiber mesh according to claim 2 is used to reinforce RC two-way slab, which is characterized in that the laying
The first layer carbon fiber mesh and the second layer carbon fiber mesh in carbon fiber mesh step are all made of lapped layup, take
The width connect is 18-22cm.
4. the method that carbon fiber mesh according to claim 3 is used to reinforce RC two-way slab, which is characterized in that the laying
The smearing thickness of the middle layer polymer mortar in carbon fiber mesh step is 2-3mm.
5. the method that carbon fiber mesh according to claim 4 is used to reinforce RC two-way slab, which is characterized in that the smearing
The smearing thickness of the outer layer copolymer mortar in outer layer copolymer mortar step is 7-8mm.
6. a kind of RC two-way slab, which is characterized in that the RC two-way slab is to use carbon fiber of any of claims 1-5
The method that dimension grid is used to reinforce RC two-way slab carries out consolidation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910508420.3A CN110206333A (en) | 2019-06-13 | 2019-06-13 | A kind of carbon fiber mesh is used to reinforce the method and RC two-way slab of RC two-way slab |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910508420.3A CN110206333A (en) | 2019-06-13 | 2019-06-13 | A kind of carbon fiber mesh is used to reinforce the method and RC two-way slab of RC two-way slab |
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| CN110206333A true CN110206333A (en) | 2019-09-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718339A (en) * | 2022-04-26 | 2022-07-08 | 中交上海港湾工程设计研究院有限公司 | Structure for reinforcing beam, plate and column by adopting basalt fiber grid system and construction method |
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| CN103496865A (en) * | 2013-09-16 | 2014-01-08 | 北京工业大学 | Hybrid FRP (Fiber Reinforced Plastic) grid enhancedreinforced ECC (Engineered Cementitious Composite) and application thereof tostructure for reinforcing concrete structure |
| CN104328924A (en) * | 2014-11-03 | 2015-02-04 | 中冶建筑研究总院有限公司 | Method for reinforcing concrete structural part through fiber grid ribs and early-strength self-compacting mortar |
| CN106930550A (en) * | 2015-12-30 | 2017-07-07 | 卡本复合材料（天津）有限公司 | A kind of carbon fiber mesh reinforcement means |
| CN208363688U (en) * | 2018-06-29 | 2019-01-11 | 北京瑞博远绿色建筑科技有限公司 | A kind of masonry panel carbon fiber mesh fabric ruggedized construction |
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2019
- 2019-06-13 CN CN201910508420.3A patent/CN110206333A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496865A (en) * | 2013-09-16 | 2014-01-08 | 北京工业大学 | Hybrid FRP (Fiber Reinforced Plastic) grid enhancedreinforced ECC (Engineered Cementitious Composite) and application thereof tostructure for reinforcing concrete structure |
| CN104328924A (en) * | 2014-11-03 | 2015-02-04 | 中冶建筑研究总院有限公司 | Method for reinforcing concrete structural part through fiber grid ribs and early-strength self-compacting mortar |
| CN106930550A (en) * | 2015-12-30 | 2017-07-07 | 卡本复合材料（天津）有限公司 | A kind of carbon fiber mesh reinforcement means |
| CN208363688U (en) * | 2018-06-29 | 2019-01-11 | 北京瑞博远绿色建筑科技有限公司 | A kind of masonry panel carbon fiber mesh fabric ruggedized construction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718339A (en) * | 2022-04-26 | 2022-07-08 | 中交上海港湾工程设计研究院有限公司 | Structure for reinforcing beam, plate and column by adopting basalt fiber grid system and construction method |
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Application publication date: 20190906 |