CN102936937A - Enhanced ultra-high-performance concrete slab made of mixed fiber reinforced plastic (FRP) grids - Google Patents
Enhanced ultra-high-performance concrete slab made of mixed fiber reinforced plastic (FRP) grids Download PDFInfo
- Publication number
- CN102936937A CN102936937A CN2012104526924A CN201210452692A CN102936937A CN 102936937 A CN102936937 A CN 102936937A CN 2012104526924 A CN2012104526924 A CN 2012104526924A CN 201210452692 A CN201210452692 A CN 201210452692A CN 102936937 A CN102936937 A CN 102936937A
- Authority
- CN
- China
- Prior art keywords
- frp
- ultra
- performance concrete
- concrete
- high performance
- 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.)
- Pending
Links
Images
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides an enhanced ultra-high-performance concrete slab made of mixed fiber reinforced plastic (FRP) grids and is suitable for the field of thin plate components of concrete floorboards or bridge deck slabs and the like. The enhanced ultra-high-performance concrete slab comprises the mixed FRP grids and the ultra-high-performance concrete wrapped on the mixed FRP grids. Compared with traditional reinforced concrete plates and single FRP concrete slabs, the enhanced ultra-high-performance concrete slab can improve the bearing capacity, the deforming capability and durability, particularly can improve the corrosion resistance remarkably and has good magnetism blocking performance.
Description
Technical field
The object of the present invention is to provide a specific admixture FRP grid to strengthen the ultra-high performance concrete plate, be applicable to the thin-plate element field such as floor plate, sewage reservoir, electrolytic cell, industry ground slab under concrete slab, the corrosive environment, be particularly useful for the stronger environment of corrosivity or environment that magnetic control is had relatively high expectations under.
Background technology:
Mixing the FRP grid is with two kinds in carbon fiber, vinal, aramid fiber, the contour performance continuous fiber of alkali-resistant glass fibre and the above overall network that forms in the resin that impregnated in according to a certain percentage, can the changing of the relative positions between the node of grid, the spacing of material mixture ratio and grid can process and control according to the actual requirements.Mix the FRP grid and not only inherited traditional F RP material high strength, low-gravity, the advantage such as corrosion-resistant, the most important thing is to remedy the shortcoming of single FRP Material ductility deficiency, mix FRP and concrete good anchoring and mechanical snap effect are arranged, solved well interface peel and slippage problem between traditional single FRP sheet material or sheet material and the concrete, and since the mode of occupation of its built-in type all be greatly improved aspect durability, the fire line.In addition, with traditional steel concrete structure compared, owing to mix the low magnetic of FRP grid, can be used for the special building of having relatively high expectations to magnetic control in hospital, laboratory etc.The FRP grid is easy to use, and it is simply fast to construct, and can be used for various members, is particularly useful for the thin wall constructions such as plate, wall.
Ultra-high performance concrete not only has high compressive strength, tensile strength and modulus of elasticity, and has a yield characteristic as steel, deformability is 4-6 times of ordinary concrete, when member generation moderate finite deformation, still can keep the co-ordination with inner FRP material, guarantee effective utilization of FRP grid.Its high density and microscopic checks distribution character make it have higher durability in addition, can protect preferably its internal material to avoid the erosion of extraneous impedance dielectric.
The armored concrete slab that generally adopts at present has following shortcoming: because concrete tensile strength is extremely low, therefore under the factor affecting such as load action and variations in temperature, concrete shrinkage and creep, very easily produce the crack, and the crack occurs with wider major fracture form easily, so that the internal steel tendon exhaustion is subject to the erosion of extraneous impedance dielectric, cause structural bearing capacity and durability to descend, shorten application life, and this defective is especially obvious in the stronger environment of corrosivity.
Compare with armored concrete slab, single FRP concrete slab has effectively been avoided the problem of reinforcement corrosion, but because single FRP material belongs to fragile material, has ductility unlike reinforcing bar, its fragility can reduce the ductility of structure, very likely causes the brittle fracture of structure.
Mix in the FRP grid ultra-high performance concrete plated construction, mix the FRP grid on the basis of having inherited the advantages such as the single FRP strength of materials is high, quality is light, corrosion-resistant, overcome the shortcoming of single FRP Material ductility deficiency; Ultra-high performance concrete is compared ordinary concrete and is then had the advantages such as high-strength, high cracking resistance, high elastic modulus, high ductility, high-durability, therefore will mix the FRP grid compares other two class formation and has following advantage with the plank frame that ultra-high performance concrete combines: can optimize sectional dimension under the same bearer power condition, reduce material usage and deadweight, increase the structure usage space; When increasing bearing capacity, durability and life cycle, keep less distortion; Antimagnetic building of having relatively high expectations is had preferably every the magnetic effect.
Summary of the invention
The object of the present invention is to provide a specific admixture FRP grid to strengthen the ultra-high performance concrete plate, this member is compared with single FRP concrete slab with traditional armored concrete slab, can optimize sectional dimension, improve supporting capacity and ductility, reduce malformation, increase structure durability and have preferably every the magnetic effect, be applicable to the concrete slab technical field of structures, be particularly useful under the extraneous impedance dielectric environment more or that magnetic control is had relatively high expectations.
For achieving the above object, the present invention has taked following technical scheme:
The present invention includes and mix the FRP grid and wrap up the ultra-high performance concrete that mixes the FRP grid.
The component of the described FRP of mixing grid and mesh spacing can be made according to the design needs.
Described ultra-high performance concrete is the ultra-high performance concrete that is mixed with steel fibre.
Described plate cross section be shaped as Filled Rectangle, hollow rectangle.
Concrete making step is as follows:
1) makes template according to design drawing and be in place;
2) will mix the FRP grid and lay the location by design drawing;
3) build ultra-high performance concrete, adopt the plate concrete vibrator vibratory compaction, and in time carry out maintenance.
Mix FRP grid enhancing ultra-high performance concrete plate and have following advantage:
Mix FRP grid and ultra-high performance concrete and all have higher intensity, therefore can be by optimizing sectional dimension in the constant situation of requirement for bearing capacity, relative ordinary reinforced concrete member, depth of section can reduce by 1/3 or more, breadth of section is reducible more, but respective material consumption, dead load be decrease all, and the structure headroom increases;
The FRP material has stronger corrosion resistance, and ultra-high performance concrete also has preferably durability because of its highly dense solidity and performance of resisting cracking, so both combinations have good durability, can significantly improve the service life of structure;
Mixing FRP grid ultra-high performance concrete plate has preferably every magnetic property.
But mix the FRP grid strengthen the ultra-high performance concrete plate can prefabrication also site operation, but the curing condition of site operation is guaranteed easily not as prefabricate, therefore the mechanical property of ultra-high performance concrete had certain impact, therefore the prefabricate method of recommend adoption is made, if to the not high site operation that adopts of mechanical property requirements of ultra-high performance concrete.
Description of drawings
Fig. 1 is that the FRP grid that mixes in Filled Rectangle cross section strengthens the ultra-high performance concrete plate;
Fig. 2 is that the FRP grid that mixes in hollow rectangle cross section strengthens the ultra-high performance concrete plate;
Fig. 3 is for mixing the FRP grid;
Among the figure: 1, mix the FRP grid, 2, ultra-high performance concrete, 3, cavity.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment one:
Now 1 the invention will be further described by reference to the accompanying drawings: at first according to design drawing template is in place, secondly it is in place by the layout design position of sound production to mix FRP grid 1, then build ultra-high performance concrete 2, and use the plate concrete vibrator vibratory compaction, stream curing three days is carried out in natural curing after one day, if not high to the ultra-high performance concrete mechanical property requirements, also can not carry out stream curing, and carry out maintenance by the maintenance process of ordinary concrete, stripping after maintenance is finished.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. a specific admixture FRP grid strengthens the ultra-high performance concrete plate, it is characterized in that: comprise mixing FRP grid (1) and wrapping up the ultra-high performance concrete (2) that mixes the FRP grid that described ultra-high performance concrete is the ultra-high performance concrete that is mixed with steel fibre.
2. the FRP grid that mixes according to claim 1 strengthens the ultra-high performance concrete plate, it is characterized in that: described plate cross section be shaped as Filled Rectangle or hollow rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104526924A CN102936937A (en) | 2012-11-12 | 2012-11-12 | Enhanced ultra-high-performance concrete slab made of mixed fiber reinforced plastic (FRP) grids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104526924A CN102936937A (en) | 2012-11-12 | 2012-11-12 | Enhanced ultra-high-performance concrete slab made of mixed fiber reinforced plastic (FRP) grids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102936937A true CN102936937A (en) | 2013-02-20 |
Family
ID=47695856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104526924A Pending CN102936937A (en) | 2012-11-12 | 2012-11-12 | Enhanced ultra-high-performance concrete slab made of mixed fiber reinforced plastic (FRP) grids |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102936937A (en) |
Cited By (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 |
| CN104878872A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Ultra-high performance concrete cover plate with truss structure framework and production method of ultra-high performance concrete cover plate |
| CN104878875A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Ultra-high performance concrete cover plate with FRP bars and production method of ultra-high performance concrete cover plate |
| CN113668793A (en) * | 2021-08-24 | 2021-11-19 | 温州设计集团有限公司 | UHPC prefabricated staircase with built-in FRP grid and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100675400B1 (en) * | 2005-09-14 | 2007-01-30 | 대원과학대학 산학협력단 | Compound frp reinforced panel and method for constructing the bottom slab using the panel |
| KR20090049403A (en) * | 2007-11-13 | 2009-05-18 | 한국건설기술연구원 | Composite concrete plate enclosing fiber reinforced plastics deck |
| CN101985825A (en) * | 2010-11-20 | 2011-03-16 | 大连理工大学 | Fiber reinforced plastic-concrete composite beam |
| CN201809900U (en) * | 2010-09-16 | 2011-04-27 | 南京林业大学 | FRP (fiber reinforce plastic)-bamboo-concrete composite beam |
| CN102287029A (en) * | 2011-06-20 | 2011-12-21 | 北京工业大学 | High-strength reinforcement built-in ultra high performance concrete (UHPC) beam member |
-
2012
- 2012-11-12 CN CN2012104526924A patent/CN102936937A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100675400B1 (en) * | 2005-09-14 | 2007-01-30 | 대원과학대학 산학협력단 | Compound frp reinforced panel and method for constructing the bottom slab using the panel |
| KR20090049403A (en) * | 2007-11-13 | 2009-05-18 | 한국건설기술연구원 | Composite concrete plate enclosing fiber reinforced plastics deck |
| CN201809900U (en) * | 2010-09-16 | 2011-04-27 | 南京林业大学 | FRP (fiber reinforce plastic)-bamboo-concrete composite beam |
| CN101985825A (en) * | 2010-11-20 | 2011-03-16 | 大连理工大学 | Fiber reinforced plastic-concrete composite beam |
| CN102287029A (en) * | 2011-06-20 | 2011-12-21 | 北京工业大学 | High-strength reinforcement built-in ultra high performance concrete (UHPC) beam member |
Cited By (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 |
| CN104878872A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Ultra-high performance concrete cover plate with truss structure framework and production method of ultra-high performance concrete cover plate |
| CN104878875A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Ultra-high performance concrete cover plate with FRP bars and production method of ultra-high performance concrete cover plate |
| CN113668793A (en) * | 2021-08-24 | 2021-11-19 | 温州设计集团有限公司 | UHPC prefabricated staircase with built-in FRP grid and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106836622B (en) | Multifunctional disassembly-free template made of fiber composite material and preparation method of multifunctional disassembly-free template | |
| Ye et al. | Novel ultra-high-performance concrete composite plates reinforced with FRP grid: Development and mechanical behaviour | |
| Rasheed et al. | Mechanical behavior of sustainable hybrid-synthetic fiber reinforced cellular light weight concrete for structural applications of masonry | |
| CN103435308B (en) | Composite board and manufacturing method thereof | |
| Deng et al. | Flexural behavior of precast ultra-lightweight ECC-concrete composite slab with lattice girders | |
| CN103266760B (en) | A kind of fiber knitted net refinforced cement based composites permanent beam template and preparation method thereof | |
| CN101481930B (en) | Construction structure for textile reinforced composite reinforced bar concrete and manufacturing method thereof | |
| CN102912975B (en) | A kind of mutual buckle type can assembled anti-cracking and seepage control permanent column shuttering | |
| CN102936940A (en) | Enhanced ultra-high-performance concrete component made of mixed fiber reinforced plastic (FRP) bars | |
| CN102936937A (en) | Enhanced ultra-high-performance concrete slab made of mixed fiber reinforced plastic (FRP) grids | |
| CN109184198A (en) | Armored concrete girder construction, the method for permanent template and its composition | |
| CN103967205A (en) | FRP (Fiber Reinforced Polymer) pipe-recycled concrete-steel pipe double-walled hollow combined member | |
| CN101418604B (en) | Reinforced concrete lower-rigid-upper-flexible shear-bending wall structure using phosphogypsum as wall material and manufacture method | |
| CN111456320A (en) | ECC (error correction code) disassembly-free template, concrete beam based on template and construction method of concrete beam | |
| CN105464208A (en) | ECC assembly integrated building structure construction method | |
| Liu et al. | 3D printing concrete structures: State of the art, challenges, and opportunities | |
| CN205591398U (en) | FRP mesh grid - ECC strip reinforcing reinforced concrete shear wall | |
| CN201695573U (en) | Novel fiber-reinforced plastic (FRP)-prestressed concrete prisms (PCPs) composite bar concrete beam | |
| Lin et al. | Experimental study on the mechanical properties of different fiber-reinforced seawater sea-sand engineered cementitious composites | |
| CN104878875B (en) | A kind of FRP muscle ultra-high performance concrete cover plate and preparation method thereof | |
| Hasim et al. | Coal bottom ash concrete: Mechanical properties and cracking mechanism of concrete subjected to cyclic load test | |
| CN107311571A (en) | The preparation method of nanometer enhancing TRC composites | |
| CN208718220U (en) | A kind of profile steel concrete column using GFRP tendons | |
| CN205153276U (en) | Composite heat -insulating wall board | |
| CN102828578A (en) | Bolt-connected assembling anti-cracking anti-seepage permanent cylinder shuttering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130220 |