CN101987477A - Improved manufacturing method of prestressed concrete cylinder pipe - Google Patents
Improved manufacturing method of prestressed concrete cylinder pipe Download PDFInfo
- Publication number
- CN101987477A CN101987477A CN2009101134110A CN200910113411A CN101987477A CN 101987477 A CN101987477 A CN 101987477A CN 2009101134110 A CN2009101134110 A CN 2009101134110A CN 200910113411 A CN200910113411 A CN 200910113411A CN 101987477 A CN101987477 A CN 101987477A
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- steel wire
- liquid
- cylinder pipe
- prestressed concrete
- 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
Abstract
The invention discloses an improved manufacturing method of a prestressed concrete cylinder pipe, which, besides the four processes of making a steel cylinder, forming a concrete cylinder pipe core, winding prestressed steel wire on the pipe core and making a concrete mortar protective layer outside the steel wire, also comprises: spraying a layer of liquid epoxy resin on the prestressed steel wire while winding the annular prestressed steel wire; and roll-jetting concrete mortar outside the epoxy resin which is not solidified, and thus, accomplishing the manufacturing of the protective layer. The method improves the anticorrosion performance of the prestressed steel wire and the strength of the concrete mortar protective layer coated outside, simplifies production process and shortens production period.
Description
Technical field
The present invention relates to the manufacturing technology of the concrete prefabricated pipe component of water conservancy projects large pore steel skeleton, especially Prestressed concrete cylinder pipe improves preparation method.
Background technology
Prestressed concrete cylinder pipe promptly is called for short PCCP, and main body will be applied to large-scale water conservancy conveying engineering.In the known technology, manufacture craft comprises, twines the outer cement mortar protective course of ring orientation prestress steel wire and steel wire on steel cylinder making, the moulding of concrete tube core, the tube core and makes four big operations.Standard GB 19685-2005 is defined in spraying one deck cement paste when twining the ring orientation prestress steel wire; promptly spraying for the first time is clean starches; purpose is to prevent that the compressor wire that exposes is subjected to that water or gas etc. influence corrosion in the external environment; but when protective layer is made; there is requirement before roller jetting silt particle slurry, to spray one deck cement paste once more; promptly spraying for the second time is clean starches, and purpose is to increase newly to mix the cement mortar and the concrete cohesive force of tube core of having hardened, prevents the protective layer hollowing, comes off.
According to existing tubulation actual conditions, exist clean blanking time of starching with spraying for the second time for the first time, between the 2h to 12h, during actual production, be subjected to factor affecting such as humidity and wind speed in cement final setting time and the external environment, for the first time the clean slurry of spraying greatly within 3 hours sclerosis, peeling, peel off.In order to cause difficulty for the clean slurry of spraying for the second time; to keep cohesive force between new sand cutting slurry and tube core concrete; in most cases; need take earlier with compressed air or pressurised stream to peeling or the residue after not purifying with the spraying first time of tube core concrete binding remove; carrying out the clean slurry of the spraying second time afterwards; in fact, the operation quality handled of above-mentioned removing directly has influence on the quality of the clean slurry of spraying for the second time back protective layer.
Extensive use along with PCCP; for the PCCP pipeline of making somebody a mere figurehead or bury ground; for preventing that corrosion factor infiltration or diffusion in air or the soil environment from causing the compressor wire corrosion; for above-mentioned four PCCP that go on foot after operation is finished; sometimes also need outside protective layer, to spray again shielding materials such as one deck coal-tar epoxy asphalt paint or polyethylene anticorrosive coating to improve the antiseptic property of PCCP compressor wire; this procedure is quite time-consuming takes a lot of work, and has also increased the cost of manufacture of product simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of preparation method that can effectively keep and improve compressor wire antiseptic power among the PCCP, promptly Prestressed concrete cylinder pipe improves preparation method.
The measure that realizes the object of the invention comprises; the cement mortar protective course that twines outside ring orientation prestress steel wire and the steel wire on keeping steel cylinder making, the moulding of concrete tube core, tube core is made on the four procedure bases; when twining the ring orientation prestress steel wire; spraying one deck liquid-state epoxy resin on compressor wire; and then outside uncured epoxy resin roller jetting silt particle slurry again, finish the protective layer production process.
The invention has the advantages that: on compressor wire, spray one deck liquid-state epoxy resin, improved the intensity of compressor wire antiseptic property and its external application cement mortar protective course, simplify production process simultaneously, shorten and produce the duration.
The specific embodiment
Embodiment 1: the cement mortar protective course that twines outside ring orientation prestress steel wire and the steel wire on keeping steel cylinder making, the moulding of concrete tube core, tube core is made on the four procedure bases; when twining the ring orientation prestress steel wire; spraying one deck liquid-state epoxy resin on compressor wire; and then outside uncured epoxy resin roller jetting silt particle slurry again, finish the protective layer production process.
The liquid-state epoxy resin of spraying one layer thickness 50 μ m-200 μ m on compressor wire.
The liquid-state epoxy resin of mechanically spraying or artificial roller brush one deck on compressor wire.
Liquid-state epoxy resin is liquid modified epoxies or is the elastic resin coating that base material is mixed with glass fibre or rubber and plastic class filler with epoxy resin that can be adjusted in advance its hardening time according to the operation practical operation time.
The present invention is the elastic resin replacement cement paste that base material is mixed with glass fibre or rubber-like filler with liquid epoxies or with the epoxy, is sprayed on the compressor wire surface, has reduced spraying the cement paste operation together, has shortened the duration; Improved the corrosion resistance of compressor wire with the compressor wire among the liquid epoxylite covering PCCP; With the adhesion strength between uncured resin and protective layer cement mortar protective course and the tube core, avoid or reduced protective layer hollowing, peeling phenomenon generation occurring, make protective layer really become one deck structure sheaf of PCCP, thereby improve the anti-interior pressure of PCCP and the ability of external load; Adopt the PCCP that simplifies the technology making can be directly used in the higher environment of corrosion factor content, cancelled protective layer and sprayed one deck coal-tar epoxy asphalt paint or polyethylene anticorrosive coating outward, significantly improve work efficiency, reduced cost.
The advantage of present embodiment is: spray one deck liquid-state epoxy resin on compressor wire, improved the intensity of compressor wire antiseptic property and its external application cement mortar protective course, simplify production process simultaneously, shorten and produce the duration.
Claims (4)
1. Prestressed concrete cylinder pipe improves preparation method; it is characterized in that; the cement mortar protective course that twines outside ring orientation prestress steel wire and the steel wire on keeping steel cylinder making, the moulding of concrete tube core, tube core is made on the four procedure bases; when twining the ring orientation prestress steel wire; spraying one deck liquid-state epoxy resin on compressor wire; and then outside uncured epoxy resin roller jetting silt particle slurry again, finish the protective layer production process.
2. Prestressed concrete cylinder pipe as claimed in claim 1 improves preparation method, it is characterized in that the liquid-state epoxy resin of spraying one layer thickness 50 μ m-200 μ m on compressor wire.
3. Prestressed concrete cylinder pipe as claimed in claim 1 improves preparation method, it is characterized in that the liquid-state epoxy resin of mechanically spraying or artificial roller brush one deck on compressor wire.
4. Prestressed concrete cylinder pipe as claimed in claim 1 improves preparation method, it is characterized in that, liquid-state epoxy resin is liquid modified epoxies or is the elastic resin coating that base material is mixed with glass fibre or rubber and plastic class filler with epoxy resin that can be adjusted in advance its hardening time according to the operation practical operation time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101134110A CN101987477A (en) | 2009-08-04 | 2009-08-04 | Improved manufacturing method of prestressed concrete cylinder pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101134110A CN101987477A (en) | 2009-08-04 | 2009-08-04 | Improved manufacturing method of prestressed concrete cylinder pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101987477A true CN101987477A (en) | 2011-03-23 |
Family
ID=43744367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101134110A Pending CN101987477A (en) | 2009-08-04 | 2009-08-04 | Improved manufacturing method of prestressed concrete cylinder pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101987477A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909784A (en) * | 2012-11-06 | 2013-02-06 | 倪志权 | Method and device for producing prestressed concrete cylinder pipe by surfactant |
| CN104832722A (en) * | 2015-04-20 | 2015-08-12 | 江苏宇星工贸有限公司 | Pre-stressed steel cylinder concrete conveying pipe used for ferrous nitrate |
| CN104960084A (en) * | 2015-07-22 | 2015-10-07 | 新兴铸管股份有限公司 | Encased concrete nodular cast iron pipe manufacturing device |
| CN107721246A (en) * | 2017-11-08 | 2018-02-23 | 温振刚 | FRP strengthens prestress steel cylinder concrete pressure pipeline manufacture craft |
| CN109654306A (en) * | 2017-10-12 | 2019-04-19 | 方圆电气股份有限公司 | A kind of compound steel cylinder prestress pipe of high molecular polymer |
| CN114215273A (en) * | 2021-12-13 | 2022-03-22 | 中铁第五勘察设计院集团有限公司 | Steel bar for marine concrete and preparation process |
-
2009
- 2009-08-04 CN CN2009101134110A patent/CN101987477A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909784A (en) * | 2012-11-06 | 2013-02-06 | 倪志权 | Method and device for producing prestressed concrete cylinder pipe by surfactant |
| CN102909784B (en) * | 2012-11-06 | 2014-10-08 | 倪志权 | Method and device for producing prestressed concrete cylinder pipe by surfactant |
| CN104832722A (en) * | 2015-04-20 | 2015-08-12 | 江苏宇星工贸有限公司 | Pre-stressed steel cylinder concrete conveying pipe used for ferrous nitrate |
| CN104960084A (en) * | 2015-07-22 | 2015-10-07 | 新兴铸管股份有限公司 | Encased concrete nodular cast iron pipe manufacturing device |
| CN109654306A (en) * | 2017-10-12 | 2019-04-19 | 方圆电气股份有限公司 | A kind of compound steel cylinder prestress pipe of high molecular polymer |
| CN107721246A (en) * | 2017-11-08 | 2018-02-23 | 温振刚 | FRP strengthens prestress steel cylinder concrete pressure pipeline manufacture craft |
| CN107721246B (en) * | 2017-11-08 | 2020-07-17 | 义乌市超强管业有限公司 | FRP reinforced prestressed steel cylinder concrete pressure pipeline manufacturing process |
| CN114215273A (en) * | 2021-12-13 | 2022-03-22 | 中铁第五勘察设计院集团有限公司 | Steel bar for marine concrete and preparation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101987477A (en) | Improved manufacturing method of prestressed concrete cylinder pipe | |
| CN105625197A (en) | Concrete beam bending reinforcing method based on steel plate-prestressed carbon fiber plate | |
| CN104775567A (en) | Novel FRP-steel composite force-bearing rib and preparation method thereof | |
| CN104197119B (en) | A kind of ductile iron pipe with composite anti-corrosive coating and preparation method thereof | |
| CN107599273B (en) | Polymer reinforced prestressed steel cylinder concrete pipeline forming process | |
| CN102991024A (en) | Method for laying protection layer on surface of iron storage tank | |
| CN107721246B (en) | FRP reinforced prestressed steel cylinder concrete pressure pipeline manufacturing process | |
| CN107859142B (en) | Anti-corrosion impermeable layer and manufacturing method thereof | |
| CN105697922B (en) | A kind of construction method of the antiseepage corrosion-resistant sewage pipeline section of jurisdiction liner based on shield method | |
| CN110469137B (en) | Method for repairing broken exposed steel bars of reinforced concrete | |
| KR100935396B1 (en) | An anticorrosion lining method for the inside of the welded pipe by using film coatting nonwoven felt-ring | |
| CN111720667A (en) | Compound carbon fiber reinforcing method for inner wall of water pipeline | |
| CN101551049B (en) | A method for reinforcing overhead concrete pipeline | |
| CN110863670A (en) | Method for repairing corrosion of tower foot of transmission steel tower | |
| CN215517200U (en) | Anticorrosive coating | |
| CN105710011A (en) | Anticorrosive treatment technology for surfaces of tunnel components | |
| CN214033678U (en) | Prestressed FRP bundle steel cylinder concrete pipe pile foundation structure | |
| CN2890212Y (en) | Two-cloths three-oil resin glass reinforced plastics isolation layer | |
| CN114412220A (en) | Leakage repairing process for construction joint of external wall | |
| CN210032573U (en) | Aluminum template coating structure | |
| CN203742001U (en) | Waterproof and reinforcing structure based on high-toughness and high-strength epoxy resin | |
| CN209818076U (en) | Shield tunnel reinforced layer structure | |
| CN111253117A (en) | Anti-erosion and anti-corrosion concrete shield segment | |
| KR101055784B1 (en) | Internal coating method of water tank | |
| JP5448480B2 (en) | Corrosion-proof construction method for steel pipes and repair of concrete-embedded pipe-like iron materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110323 |