CN106049865A - Manufacturing method of reinforced concrete protection layer - Google Patents
Manufacturing method of reinforced concrete protection layer Download PDFInfo
- Publication number
- CN106049865A CN106049865A CN201610369700.7A CN201610369700A CN106049865A CN 106049865 A CN106049865 A CN 106049865A CN 201610369700 A CN201610369700 A CN 201610369700A CN 106049865 A CN106049865 A CN 106049865A
- Authority
- CN
- China
- Prior art keywords
- concrete
- protective layer
- reinforced concrete
- manufacture method
- protection layer
- 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
Classifications
-
- 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
-
- 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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention relates to a manufacturing method of a reinforced concrete protection layer. The manufacturing method comprises the following steps that firstly, non-metal fibers are added to common concrete, so that fiber concrete is obtained; secondly, the fiber concrete is poured to the outside of a main stress steel bar, and a protection layer with a certain thickness is formed; and a plurality of protrusions are arranged on one side face of the protection layer, and the side face with the protrusions is connected with the common concrete plane of a building structure. By the adoption of the manufacturing method, the situations that in the service life period of the whole structure, the main stress steel bar is badly rusted due to outside corrosive media entering the steel bar, the section loss is caused, and the safety of the structure is threatened can be avoided; and the protection layer has the anti-cracking and anti-disengagement functions, and structural durability is improved.
Description
Technical field
The invention belongs to building field, be specifically related to the manufacture method of a kind of reinforced concrete protective layer.
Background technology
In reinforced concrete structure, rebar surface need to arrange certain thickness concrete cover.Purpose is to make bar list
Face is under the alkaline environment of concrete, produces passivating film, thus prevents reinforcing bars rusting Damage Structure safety.Along with alkalescence
Concrete material and air in carbon dioxide gradually produce carburizing reagent, the alkaline protective effect of concrete disappears the most gradually
Lose；The most more under severe environments, extraneous chloride ion etc. has the ion of corrosiveness to reinforcing bar also can pass through spreading effect
Gradually invading protective layer, until the ion accumulation of rebar surface to after finite concentration, just there is corrosion in reinforcing bar.Therefore at different rings
Border needs to arrange the cover to reinforcement of different-thickness, it is ensured that in the design life of structure, reinforcing bar is unlikely to because of the external world
The intrusion of corrosive medium and produce serious corrosion, cause cross section to lose, Damage Structure safety.Under more harsh and unforgiving environments, coagulation
It is even thicker that protective soil layer thickness needs to reach 50mm, if not taking strengthening measure, protective layer itself easily produces crack, stripping
Fall, it is difficult to reach to protect the purpose of reinforcing bar.Therefore general employing arranges independent anticracking, the reinforcing bar of anti-peeling in thick protective layer
The way of mesh sheet.
Above traditional method is higher to construction requirement, and because of the finite thickness of concrete own, reinforcing bar typically uses thinner specification,
And cause more serious corrosion effect to prevent from connecting formation path with main muscle, fine steel rib mesh sheet should strictly with the insulation of main muscle.
Reinforced mesh is arranged in protective layer, also should at least keep mesh sheet distance concrete surface itself to have certain protection thickness.This
Require the biggest difficulty brought to construction technology a bit, and if construction precision slightly deviation, not only can not play protection purpose anti-
And the probability of main muscle corrosion can be increased.Accordingly, it would be desirable to invent a kind of new structure way, make thick protective layer can realize cracking resistance,
The function of anti-peeling, again can convenient construction, easy to control the quality.
Summary of the invention
For defect present in prior art, the present invention provides the manufacture method of a kind of reinforced concrete protective layer, protects
Demonstrate,prove whole building structure main stress reinforcing bar in service life and will not produce serious corrosion because extraneous corrosive medium enters, and
Can effectively prevent the cracking of reinforced concrete protective layer, peeling, improve integrally-built quality, increase integrally-built resistance to
Property for a long time.
For reaching object above, the technical solution used in the present invention is: provide the making of a kind of reinforced concrete protective layer
Method, comprises the steps:
1) in concrete, add non-metallic fibers, be allowed to form fiber concrete；
2) fiber concrete is cast in the outside of main stress reinforcing bar, is formed and there is certain thickness protective layer；
3) one side at protective layer arranges multiple projection, and by common with building structure for the side with multiple projection
Concrete surface connects.
Further, in step 1) in, non-metallic fibers is done in concrete non-directional distribution.
Further, in step 1) in, in described concrete, non-metallic fibers volume is 0.8-1.5kg/m3。
Further, in step 1) in, described non-metallic fibers is polypropylene fibre.
Further, in step 3) in, described projection is tooth-shape structure.
Further, the spacing between adjacent two projections is not more than 300mm.
The Advantageous Effects of the present invention is:
The protective layer of the present invention, because adding non-metallic fibers in concrete, and does non-directional distribution, works as normal concrete
When structure is invaded by surface corrosion medium, the construction features that protective layer relies on fiber concrete the finest and close is split with less surface
Slit in pairs its natural cover for defense, it is ensured that will not produce serious because of the intrusion of extraneous corrosive medium from main stress rebar surface
Corrosion, crack and peeling；Improve integrally-built quality, increase integrally-built durability；Easy construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of reinforced concrete protective layer of the present invention；
Fig. 2 is the enlarged drawing in Fig. 1 at A.
In figure:
1-fiber concrete 2-main stress reinforcing bar 3-projection 4-normal concrete
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described in further detail.
The manufacture method of the reinforced concrete protective layer of the present invention, comprises the steps:
1) in concrete, add non-metallic fibers, make non-metallic fibers do non-directional distribution, shape in normal concrete
Become fiber concrete 1.Non-metallic fibers uses polypropylene fibre, and in concrete, non-metallic fibers volume is 0.8-1.5kg/m3。
So, in concrete, add non-metallic fibers, effectively stop the generation of concrete shrinkage crack, hence it is evident that improve the power of concrete
Learn performance.Because fiber itself has natural hydrophilic, remarkable bond stress and higher toughness and intensity.It addition, it is nonmetal
Fiber is doing non-directional distribution in normal concrete, can effectively reduce the most advanced and sophisticated stress of fine fisssure and concentrate, make concrete or mortar
The tension caused because of drying shrinkage slackens or eliminates, and prevents the generation of microcrack further.Thus, solving is anti-in prior art
Only protective layer crack, peeling arrange reinforced mesh, cause construction inconvenience, the uppity problem of precision.
2) fiber concrete 1 is cast in the outside of main stress reinforcing bar 2, is allowed to form certain thickness protective layer, this guarantor
The thickness of sheath determines according to actual needs, and the preferably internal layer H1 of main stress reinforcing bar is 30mm, and the outer layer H2 of main stress reinforcing bar is
50mm.This way it is ensured that main muscle surface is to the protective layer thickness of concrete surface, it is to avoid the external environment rust to main muscle surface
Erosion, improves integrally-built safety.
3) one side at protective layer arranges multiple protruding 3, arranges multiple groove normal concrete 4, and will have
Protruding side is docked mutually with normal concrete 4 groove surface.Protruding 4 be shaped as dentation, the spacing between adjacent two projections
L1, L2 are not more than 300mm, as shown in Figure 1.Such that contacting between main stress reinforcing bar with normal concrete layer can be increased
Area, it is also possible to strengthen interlayer shear-carrying capacity, is allowed to have stronger anti-overall peel-ability, improves the durability of structure.
As in figure 2 it is shown, width L3, L5 of the two of projection inclined planes are preferably 40mm, highly H3 is preferably 40mm, tilts
Angle is preferably 45 degree；The width L4 of horizontal plane is preferably 50mm.This way it is ensured that fiber concrete material enters main stress steel
The certain depth of muscle scope, thus ensure that main stress reinforcing bar is not corroded by external environment.It should be noted that the present invention is protruding
Shape and size be not limited to above-mentioned concrete restriction, can determine according to actual needs and select.
In sum, when normal concrete body structure surface is invaded by corrosive medium, rely on fiber concrete the finest and close
Construction features and less surface crack form the natural cover for defense to it, it is ensured that will not be become rusty from main stress rebar surface
Lose, protective layer will not be by crack, peeling.
The manufacture method of the reinforced concrete protective layer of the present invention is not limited to above-mentioned detailed description of the invention, art technology
Personnel draw other embodiment according to technical scheme, also belong to the technological innovation scope of the present invention.
Claims (6)
1. a manufacture method for reinforced concrete protective layer, comprises the steps:
1) in concrete, add non-metallic fibers, be allowed to form fiber concrete (1)；
2) fiber concrete (1) is cast in the outside of main stress reinforcing bar (2), is formed and there is certain thickness protective layer；
3) one side at protective layer arranges multiple projection (3), and will have the side of multiple projection and general in building structure
Logical concrete (4) face connects.
2. the manufacture method of reinforced concrete protective layer as claimed in claim 1, is characterized in that: in step 1) in, by non-gold
Belong to fiber in concrete, do non-directional distribution.
3. the manufacture method of reinforced concrete protective layer as claimed in claim 1, is characterized in that: in step 1) in, described mixed
In solidifying soil, non-metallic fibers volume is 0.8-1.5kg/m3。
4. the manufacture method of reinforced concrete protective layer as claimed in claim 1, is characterized in that: in step 1) in, described non-
Metallic fiber is polypropylene fibre.
5. the manufacture method of reinforced concrete protective layer as claimed in claim 1, is characterized in that: in step 3) in, described convex
Playing (3) is tooth-shape structure.
6. the manufacture method of reinforced concrete protective layer as claimed in claim 5, is characterized in that: adjacent two projections (3) it
Between spacing be not more than 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369700.7A CN106049865A (en) | 2016-05-30 | 2016-05-30 | Manufacturing method of reinforced concrete protection layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369700.7A CN106049865A (en) | 2016-05-30 | 2016-05-30 | Manufacturing method of reinforced concrete protection layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106049865A true CN106049865A (en) | 2016-10-26 |
Family
ID=57172245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610369700.7A Pending CN106049865A (en) | 2016-05-30 | 2016-05-30 | Manufacturing method of reinforced concrete protection layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106049865A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554235U (en) * | 2009-10-12 | 2010-08-18 | 上海维固工程实业有限公司 | Polymer modified cement mortar reinforcement mesh surface layer reinforcing structure |
| CN101949221A (en) * | 2010-08-23 | 2011-01-19 | 华侨大学 | Method for reinforcing slate building roof |
| CN202039452U (en) * | 2011-04-27 | 2011-11-16 | 广东省电力设计研究院 | Concrete cover structure |
| CN102888947A (en) * | 2012-11-04 | 2013-01-23 | 西安建筑科技大学 | High-elongation combined brick column and construction method thereof |
| CN104563389A (en) * | 2014-12-22 | 2015-04-29 | 扬州大学 | High-strength reinforced and functionally-graded concrete beam |
| CN104727464A (en) * | 2015-03-26 | 2015-06-24 | 江苏永通市政园林建设有限公司 | Weather-resistant thermal insulation exterior wall |
-
2016
- 2016-05-30 CN CN201610369700.7A patent/CN106049865A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554235U (en) * | 2009-10-12 | 2010-08-18 | 上海维固工程实业有限公司 | Polymer modified cement mortar reinforcement mesh surface layer reinforcing structure |
| CN101949221A (en) * | 2010-08-23 | 2011-01-19 | 华侨大学 | Method for reinforcing slate building roof |
| CN202039452U (en) * | 2011-04-27 | 2011-11-16 | 广东省电力设计研究院 | Concrete cover structure |
| CN102888947A (en) * | 2012-11-04 | 2013-01-23 | 西安建筑科技大学 | High-elongation combined brick column and construction method thereof |
| CN104563389A (en) * | 2014-12-22 | 2015-04-29 | 扬州大学 | High-strength reinforced and functionally-graded concrete beam |
| CN104727464A (en) * | 2015-03-26 | 2015-06-24 | 江苏永通市政园林建设有限公司 | Weather-resistant thermal insulation exterior wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207109563U (en) | Bridge ultra-high performance concrete protection against erosion denudes structure | |
| CN102207000A (en) | High-performance functionally-gradient shield lining segment and preparation method thereof | |
| CN101109087A (en) | Anodic sacrifice protection method of steel reinforced concrete bridge pier | |
| Li et al. | Interfacial zone effects of chloride penetration in precast concrete member joints | |
| CN201818314U (en) | Lining segment of shield with gradient function | |
| CN106049865A (en) | Manufacturing method of reinforced concrete protection layer | |
| SE1400498A1 (en) | Concrete mix and applications of the concrete mix | |
| Sgambi et al. | The influence of degradation phenomena on collapse modes in prestressed concrete beams | |
| CN103321218B (en) | Prestressed centrifugally Corrosion-resistant hollow square pile | |
| CN206754617U (en) | The prefabricated natural gas line of concrete outer cladding | |
| CN202039452U (en) | Concrete cover structure | |
| KR100943988B1 (en) | Glass fiber reinforced plastic pipe | |
| CN206554051U (en) | The anti-corrosive apparatus of reinforced concrete bridge pier in a kind of marine environment | |
| CN205077526U (en) | Anticorrosive reinforcement reinforced structure of aquatic piling bar | |
| CN210947123U (en) | Low-shrinkage type ultrahigh-strength concrete-reinforced concrete combined structure | |
| CN103334425B (en) | Joint protection structure of anti-corrosion hollow square pile | |
| Zhou et al. | Influence of boundary and initial condition on durability of concrete structures exposed to chloride environment | |
| CN113389127A (en) | Heavy-duty anticorrosion thermal barrier system for steel bridge fused deposition composite material | |
| CN112049664B (en) | Box body structure based on perforated steel plate and preparation method thereof | |
| CN206396924U (en) | A kind of composite insulation boards | |
| CN204551441U (en) | A kind of permanent seal cooling uplift pile | |
| CN109401464A (en) | A kind of ship rust resistance and corrosion resistance coating | |
| CN109897414A (en) | A kind of tunnel novel fire extinguishing coating | |
| CN206075909U (en) | A kind of ocean submerged cable | |
| CN215152779U (en) | Compound sound insulation is exempted from to tear open template with anti distortion performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |