CN110331818A - A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member and preparation method thereof - Google Patents
A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member and preparation method thereof Download PDFInfo
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- CN110331818A CN110331818A CN201910620692.2A CN201910620692A CN110331818A CN 110331818 A CN110331818 A CN 110331818A CN 201910620692 A CN201910620692 A CN 201910620692A CN 110331818 A CN110331818 A CN 110331818A
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- reinforcing bar
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- steel tube
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Laminated Bodies (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a kind of fabric enhancing ECC- steel pipe-reinforcing bar combined members and preparation method thereof, including thin-wall steel tube, the fabric being coated on the outside of thin-wall steel tube enhancing ECC, the fashioned iron reinforcing bar being arranged in thin-wall steel tube and pour in the concrete in thin-wall steel tube；Wherein, the fabric enhancing ECC is made of ECC and fiber knitted net, and the geometric centroid of thin-wall steel tube and fashioned iron reinforcing bar coincides；Along component longitudinal direction, spaced set has card slot or peg for realizing being fixedly connected between fashioned iron reinforcing bar in the thin-wall steel tube.By the present invention in that wrapping up in steel pipe with fabric enhancing ECC ring, reduce the risk of steel pipe corrosion, make combined member that there is high-durability and fire resistance, and reinforcing bar and concrete are in three dimension stress state, improve adhesive property between the two, effectively prevent simultaneously and prevent reinforcing bar from buckling locally occurs, and then improves the deformation of the two and bearing capacity.
Description
Technical field
The present invention relates to a kind of fabric enhancing ECC- steel pipe-reinforcing bar combined members and preparation method thereof, belong to civil construction
Technical field of structures.
Background technique
In recent ten years, with the development of economy with the raising of scientific and technological level, concrete filled steel tube is because of its bearing capacity
It is high, from heavy and light, anti-seismic performance is good, easy for construction the advantages that, be widely used in skyscraper, and obtain good society and
Economic benefit.However in practical engineering applications, concrete filled steel tube there are still fire resistances poor, easy-to-rust and local buckling occurs etc.
It is insufficient.In addition, thin-wall high-strength steel pipe can not concrete in operative constraint steel pipe, make concrete that brittle break be presented, lead to group
The deformability of zygostyle is insufficient.
Steel reinforced concrete structure is also known as Structural Steel Reinforced Concrete, is usually used in skyscraper, can effectively reduce component
Area of section.Steel reinforced concrete structure can give full play to the compound action of reinforcing bar and concrete, and the concrete of outsourcing can have
Effect inhibits the local buckling of reinforcing bar, so that reinforcing bar preferably plays its mechanical property.But there is also certain for steel reinforced concrete
Deficiency influences the durability of structure if outer concrete is easy to fall off to cause the reduction of structure service life.In addition, in earthquake
Under effect, brittle break also easily occurs for concrete, so that the anti-seismic performance of structure is very poor.
Chinese patent literature CN105781016A discloses a kind of cement-base composite material and steel pipe combination combined column, this is multiple
Concrete inner core is in pipe fitting in zygostyle, and pipe fitting periphery is enclosed with cement-base composite material layer.The combined column has bending resistance, resists
It cuts, the advantage that tension and anti-seismic performance are good, it is corrosion-resistant.Although cement-base composite material layer and internal outer wall of steel pipe in the combined column
Between take measure, but the adhesive property between the two is still poor, easily peeling-off, while there is also generation offices for steel pipe
The possibility of portion's buckling.
Based on background above, on the basis of having used for reference above structure form advantage, the invention proposes a kind of increasings of fabric
Strong ECC- steel pipe-reinforcing bar combined member and preparation method thereof, to overcome defect and deficiency in the form of above structure.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of fabric enhancing ECC- steel pipe-
Reinforcing bar combined member and preparation method thereof wraps up in steel pipe by using fabric enhancing ECC ring, makes steel pipe and external environs, drop
The risk of low steel pipe corrosion, makes combined member have high-durability and fire resistance, and the anti-flexion capabilities of fashioned iron reinforcing bar enhance.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member, including thin-wall steel tube, is coated on knitting on the outside of thin-wall steel tube
Object enhances ECC, the fashioned iron reinforcing bar being arranged in thin-wall steel tube and pours in the concrete in thin-wall steel tube；
Wherein, the fabric enhancing ECC is made of ECC and fiber knitted net, and the geometry of thin-wall steel tube and fashioned iron reinforcing bar
Centroid coincides.
Further, the cross sectional shape of the fashioned iron reinforcing bar is I-shaped or cross.
Further, the cross sectional shape of the thin-wall steel tube is rectangle, and four edges are at circular arc, and thin-wall steel tube is outer
Diameter and wall-thickness ratio are 40-150.
Further, the cross sectional shape of the component is rectangle.
Further, along component longitudinal direction, spaced set has card slot or bolt between fashioned iron reinforcing bar in the thin-wall steel tube
Nail, for realizing being fixedly connected for fashioned iron reinforcing bar and thin-wall steel tube.
Further, the proportion material of the ECC include 42.5 ordinary portland cement of P.O, level-one flyash, 40~
80 mesh quartz sands, high efficiency water reducing agent and PVA fiber, and PVA volume is no more than 2%.
Further, the ECC match ratio are as follows: PVA in every cubic metre: cement: quartz sand: flyash: water: water-reducing agent=
0.047:1:1:1.182:0.547:0.003.
Further, the type of the fiber knitted net includes Carbon Fibre Textile, fiberglass braided net, pbo fiber
Mesh grid, basalt fibre mesh grid, aramid fiber mesh grid, assorted fibre mesh grid, and the knitting type of fiber knitted net
It is served as a contrast including multiaxis loop bonding, twin shaft loop bonding and warp knit latitude.
A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member production method, comprising the following steps:
1) casting concrete into thin-wall steel tube, while fashioned iron reinforcing bar being kept to be located at thin-wall steel tube center；
2) blasting treatment is done to thin-wall steel tube outer wall, then using thin-wall steel tube as inner template, is sprayed to thin-wall steel tube outer wall
Or smear ECC；
3) fiber knitted net is wrapped up in ECC surface loop, ring keeps warp fiber beam and structure in fiber knitted net during wrapping up in
Part section is parallel, and the fiber knitted net lap of splice preferably takes 1.5~2 times of thin-wall steel tube side lengths.Before ring wraps up in fiber knitted net, Ying Cai
With cement paste wetting fibre mesh grid
4) ECC is sprayed or smears in fiber woven net surface, every layer of ECC minimum thickness is not preferably less than 5mm；
5) according to design requirement, step 3), 4) is repeated, the arrangement of multi-layer fiber mesh grid, component outermost ECC spray are completed
After the completion of penetrating or smearing, component completes, and in component surface plastic covering film, and conserves 28 days.
Further, when in the step 2) using injection ECC, injection order should from bottom to top, and section length is not more than
6m, the distance of nozzle to thin-wall steel tube outer wall surface are 100-300mm, and the angle of injection direction and steel tube surface normal is 15-
30 degree, spray is laminated in 1/4-1/5.
The utility model has the advantages that a kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member provided by the invention and preparation method thereof, phase
For the prior art, have the advantage that
1) fabric enhancing ECC enhances the hoop effect of steel pipe, so that combined member is had superior anti-seismic performance, improves structure
The bearing capacity and ductility of part；
2) fabric enhancing ECC ring wraps up in steel pipe, reduces the risk of steel pipe corrosion, so that combined member is had high-durability, mentions
The high service life of combined member；
3) fabric enhancing ECC further improves the fire resistance of combined member, reduces the fireproof construction cost of structure；
4) reinforcing bar and concrete are in three dimension stress state, improve adhesive property between the two, while effectively prevention
With prevent reinforcing bar from buckling locally occurs, and then the deformation both made and bearing capacity improve.
Detailed description of the invention
Fig. 1 is that a kind of fabric of the present invention enhances ECC- steel pipe-rectangular steel pipe and ten built in reinforcing bar combined member rectangular section
The schematic cross-section of the embodiment 1 of font reinforcing bar；
Fig. 2 is that a kind of fabric of the present invention enhances ECC- steel pipe-rectangular steel pipe and work built in reinforcing bar combined member rectangular section
The schematic cross-section of the embodiment 2 of font reinforcing bar；
It include: 1, concrete, 2, fashioned iron reinforcing bar, 3, thin-wall steel tube, 4, fiber knitted net, 5, ECC, 6, card slot or bolt in figure
Nail.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
Embodiment 1
Enhance ECC- steel pipe-reinforcing bar combined member as shown in Figure 1 for a kind of fabric, including thin-wall steel tube 3, is coated on thin-walled
The fabric in 3 outside of steel pipe enhances ECC, the fashioned iron reinforcing bar 2 being arranged in thin-wall steel tube 3 and pours in the coagulation in thin-wall steel tube 3
Soil 1；
Wherein, the fabric enhancing ECC is made of ECC5 and fiber knitted net 4, and thin-wall steel tube 3 and fashioned iron reinforcing bar 2
Geometric centroid coincides；Along component longitudinal direction, spaced set has card slot or peg between fashioned iron reinforcing bar 2 in the thin-wall steel tube 3
6, for realizing being fixedly connected for fashioned iron reinforcing bar 2 and thin-wall steel tube 3.
In the present embodiment, the cross sectional shape of the fashioned iron reinforcing bar 2 be it is cross, the cross sectional shape of the thin-wall steel tube 3 is
Rectangle (containing rectangular), four edges are at circular arc, and the outer diameter of thin-wall steel tube 3 and wall-thickness ratio are 40-150；The component
Cross sectional shape is rectangle (containing rectangular).
Material is 42.5 ordinary portland cement of P.O, level-one flyash, 40~80 mesh quartz in the ECC match ratio
Sand, high efficiency water reducing agent and PVA fiber (vinal), and PVA volume is no more than 2%.Every cubic metre of ECC match ratio
Are as follows: PVA: cement: quartz sand: flyash: water: water-reducing agent=0.047:1:1:1.182:0.547:0.003.
The type of the fiber knitted net 4 includes Carbon Fibre Textile 4, fiberglass braided net 4, pbo fiber mesh grid
4, the knitting type packet of basalt fibre mesh grid 4, aramid fiber mesh grid 4, assorted fibre mesh grid 4, and fiber knitted net 4
Include multiaxis loop bonding, twin shaft loop bonding and warp knit latitude lining.
A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member production method, comprising the following steps:
1) casting concrete into thin-wall steel tube, while cross fashioned iron reinforcing bar being kept to be located at thin-wall steel tube center；
In step 1), in order to reach the optimum utilization of steel, the steel pipe is outer diameter and thickness of steel pipe ratio is 40-
150 thin-wall steel tube, the thin-wall steel tube are rectangular steel pipe (containing rectangular), and rectangular steel pipe preferably uses welding, and in 4 edges
Circular arc is formed, is concentrated to avoid stress is formed, is unfavorable for ECC layers of outer fabric enhancing and plays a role；In order to fixed fashioned iron
Position of the reinforcing bar in thin-wall steel tube makes fashioned iron and steel pipe tightly be buckled together or indulge along component along the longitudinally disposed card slot of component
To every 0.5m or 1m spaced set peg, peg both ends are respectively welded on fashioned iron reinforcing bar and thin-wall steel tube；Pour coagulation
When native, if component is too long along longitudinal direction, to avoid the occurrence of honeycomb, pitted skin, hole and other issues, it need to be segmented and pour, vibrate.
2) blasting treatment is done to thin-wall steel tube outer wall, using thin-wall steel tube as inner template, sprays or apply to thin-wall steel tube outer wall
ECC is smeared, injection or smearing thickness determine according to the design needs, but every layer of minimum thickness is not preferably less than 5mm；
In step 2), sand-blasting abrasive uses quartz sand, partial size 0.5-1.5mm, even particle size, drying, without greasy dirt
Etc. any pollution.Before being packed into silo every time, will first be sieved sorting, such as find that abrasive material has agglomeration, corrosion serious, it is necessary to clear
It removes.In course of injection, nozzle to base metal surface distance is 100-300mm, the angle of injection direction and steel tube surface normal
For 15-30 degree, spray overlapping is advisable with 1/4-1/5.
Material is 42.5 ordinary portland cement of P.O, level-one flyash, 40~80 mesh quartz sands, height in ECC match ratio
Imitate water-reducing agent and PVA fiber (vinal).Every cubic metre of ECC match ratio are as follows: PVA: cement: quartz sand: flyash:
Water: water-reducing agent=0.047:1:1:1.182:0.547:0.003.
When using injection ECC, injection order should from bottom to top, and section length is not preferably greater than 6m.Jet velocity is appropriate, with
Conducive to coagulation soil compaction；Make nozzle when injection and keep suitable distance between by spray plane, spray angle is close to 90 degree to the greatest extent to obtain
Obtain maximum compacting and minimum rebound；Nozzle should continuously, slowly make movement of laterally going in ring, a circle pressure half-turn.
3) fiber knitted net is wrapped up in ECC surface loop, ring should keep warp fiber beam and examination in fiber knitted net during wrapping up in
Part section is parallel, and the fiber knitted net lap of splice preferably takes 1.5~2 times of thin-wall steel tube side lengths；
In step 3), before ring wraps up in fiber knitted net, Ying Caiyong cement paste wetting fibre mesh grid；The fibrage
The type of net includes: Carbon Fibre Textile, fiberglass braided net, pbo fiber mesh grid, basalt fibre mesh grid, aramid fiber
Fiber knitted net, assorted fibre mesh grid.
4) ECC is sprayed or smears in fiber woven net surface, injection or smearing thickness determine according to the design needs, but every layer
Minimum thickness is not preferably less than 5mm；
5) according to requirement of engineering, step 3), 4), the arrangement of achievable multi-layer fiber mesh grid are repeated.
In step 5), after the completion of component outermost ECC injection or smearing, component completes, and covers and moulds in component surface
Expect film, and conserves 28 days.
Embodiment 2: Fig. 2 be fabric enhance a kind of form of ECC- steel pipe-reinforcing bar combined member, the member embodiment with
Embodiment 1 is essentially identical, and difference is: reinforcing bar shape is I-shaped in step 1 in the present embodiment.
A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member provided by the invention and preparation method thereof, is increased using fabric
The advantages of strong ECC, steel pipe, reinforcing bar and concrete form combined member, take full advantage of a variety of materials, while between a variety of materials
It interacts again, further improves the performance of combined member, so that combined member has superior anti-seismic performance, improve component
Bearing capacity and ductility；Steel pipe is wrapped up in by using fabric enhancing ECC ring, makes steel pipe and external environs, reduces steel pipe
The risk of corrosion makes combined member have high-durability and fire resistance；The anti-flexion capabilities of fashioned iron reinforcing bar enhance.In addition, group
Casualties and property loss caused by earthquake can be reduced by closing component, while reduce the reinforcing maintenance cost in normal use process
With.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of fabric enhances ECC- steel pipe-reinforcing bar combined member, which is characterized in that including thin-wall steel tube (3), be coated on thin-walled
Fabric on the outside of steel pipe (3) enhances ECC, the fashioned iron reinforcing bar (2) being arranged in thin-wall steel tube (3) and pours in thin-wall steel tube (3)
Interior concrete (1)；
Wherein, the fabric enhancing ECC is made of ECC (5) and fiber knitted net (4), and thin-wall steel tube (3) and fashioned iron reinforcing bar
(2) geometric centroid coincides.
2. a kind of fabric according to claim 1 enhances ECC- steel pipe-reinforcing bar combined member, which is characterized in that the type
The cross sectional shape of steel reinforcing bar (2) is I-shaped or cross.
3. a kind of fabric according to claim 1 enhances ECC- steel pipe-reinforcing bar combined member, which is characterized in that described thin
The cross sectional shape of wall steel pipe (3) is rectangle, and four edges are at circular arc, and the outer diameter of thin-wall steel tube (3) and wall-thickness ratio are 40-
150。
4. a kind of fabric according to claim 1 enhances ECC- steel pipe-reinforcing bar combined member, which is characterized in that the structure
The cross sectional shape of part is rectangle.
5. a kind of fabric according to claim 1 enhances ECC- steel pipe-reinforcing bar combined member, which is characterized in that described thin
Along component longitudinal direction, spaced set has card slot or peg (6) between fashioned iron reinforcing bar (2) in wall steel pipe (3), for realizing fashioned iron
Reinforcing bar (2) is fixedly connected with thin-wall steel tube (3).
6. a kind of fabric according to claim 1 enhances ECC- steel pipe-reinforcing bar combined member, which is characterized in that the ECC
(5) proportion material include P.O42.5 ordinary portland cement, level-one flyash, 40~80 mesh quartz sands, high efficiency water reducing agent with
And PVA fiber, and PVA volume is no more than 2%.
7. a kind of fabric according to claim 6 enhances ECC- steel pipe-reinforcing bar combined member, which is characterized in that the ECC
(5) match ratio are as follows: PVA in every cubic metre: cement: quartz sand: flyash: water: water-reducing agent=0.047:1:1:1.182:
0.547:0.003.
8. a kind of fabric according to claim 1 enhances ECC- steel pipe-reinforcing bar combined member, which is characterized in that the fibre
The type for tieing up mesh grid (4) includes Carbon Fibre Textile (4), fiberglass braided net (4), pbo fiber mesh grid (4), the Black Warrior
Rock fiber knitted net (4), aramid fiber mesh grid (4), assorted fibre mesh grid (4), and the knitting type of fiber knitted net (4)
It is served as a contrast including multiaxis loop bonding, twin shaft loop bonding and warp knit latitude.
9. a kind of fabric enhances ECC- steel pipe-reinforcing bar combined member production method, which comprises the following steps:
1) casting concrete into thin-wall steel tube, while fashioned iron reinforcing bar being kept to be located at thin-wall steel tube center；
2) blasting treatment is done to thin-wall steel tube outer wall, then using thin-wall steel tube as inner template, sprays or apply to thin-wall steel tube outer wall
Smear ECC；
3) fiber knitted net is wrapped up in ECC surface loop, ring keeps warp fiber beam and member section in fiber knitted net during wrapping up in
In parallel, the fiber knitted net lap of splice takes 1.5~2 times of thin-wall steel tube side lengths, before ring wraps up in fiber knitted net, using cement paste
Wetting fibre mesh grid；
4) ECC is sprayed or smears in fiber woven net surface, every layer of ECC minimum thickness is not less than 5mm；
5) according to design requirement, repeat step 3), 4), complete the arrangement of multi-layer fiber mesh grid, component outermost ECC injection or
After the completion of smearing, component completes, and in component surface plastic covering film, and conserves 28 days.
10. a kind of fabric according to claim 1 enhances ECC- steel pipe-reinforcing bar combined member production method, feature
It is, when in the step 2) using injection ECC, injection order should from bottom to top, and section length is not more than 6m, nozzle to thin-walled
The distance on outer wall of steel pipe surface is 100-300mm, and the angle of injection direction and steel tube surface normal is 15-30 degree, spray overlapping
For 1/4-1/5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620692.2A CN110331818A (en) | 2019-07-10 | 2019-07-10 | A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member and preparation method thereof |
| PCT/CN2019/109877 WO2021003862A1 (en) | 2019-07-10 | 2019-10-08 | Fabric-reinforced ecc-steel pipe-steel frame composite member and fabrication method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620692.2A CN110331818A (en) | 2019-07-10 | 2019-07-10 | A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110331818A true CN110331818A (en) | 2019-10-15 |
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| CN201910620692.2A Pending CN110331818A (en) | 2019-07-10 | 2019-07-10 | A kind of fabric enhancing ECC- steel pipe-reinforcing bar combined member and preparation method thereof |
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| CN (1) | CN110331818A (en) |
| WO (1) | WO2021003862A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089417A (en) * | 2021-04-06 | 2021-07-09 | 华南理工大学 | ECC-concrete-steel sandwich tubular structure and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045273A (en) * | 2021-03-23 | 2021-06-29 | 许昌学院 | High-strength polyvinyl alcohol fiber reinforced cement-based composite material and preparation method and application thereof |
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