CN101603369A - Antirust protection method of reserved steel bar - Google Patents
Antirust protection method of reserved steel bar Download PDFInfo
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- CN101603369A CN101603369A CNA2009100123405A CN200910012340A CN101603369A CN 101603369 A CN101603369 A CN 101603369A CN A2009100123405 A CNA2009100123405 A CN A2009100123405A CN 200910012340 A CN200910012340 A CN 200910012340A CN 101603369 A CN101603369 A CN 101603369A
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- steel bar
- reserved steel
- cement
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- pipe material
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Abstract
A kind of antirust protection method of reserved steel bar comprises that step is as follows: get the outside that the pvc pipe material is enclosed within reserved steel bar, the diameter of described pvc pipe material is more than 2 times of reserved steel bar diameter; Water intaking silt particle slurry is filled the slit between pvc pipe material and the reserved steel bar; Described cement mortar is by cement, and Sha Heshui makes by weight ratio, and wherein cement is 200 parts, 1500 parts in sand, 280 parts in water; The label of cement is 32.5#; The fineness modulus of sand is 2.7; Use its favorable rust preventing effect of the present invention, cost is low, and reinforcing bar is the utilization rate height again.
Description
Technical field:
The present invention relates to a kind of guard method of preventing that reserved steel bar from getting rusty of being used to.
Background technology:
At present, owing to not having fund or other reason, such as the incomplete or delayed projects engineering, have some reserved steel bars in the building site exposed outside, and of long duration like this, reinforcing bar will get rusty, if engineering starts once more, these reinforcing bars that get rusty have just lost its original characteristic, do not meet construction requirement; Conventional rust-proofing method is to be coated with last layer rust protection agent at exposed reinforcing bar external surface, or swabbing mud; Be coated with the method for rust cost than higher and influence bonding degree between reinforcing bar and the concrete; The shortcoming of the method for swabbing mud is, is not easy to remove when reinforcing bar is used again, because cement paste is thinner, the time has been grown the part still can be by corrosion.
Summary of the invention:
In order to address the above problem, the invention provides a kind of antirust protection method of reserved steel bar, its favorable rust preventing effect, cost is low, and reinforcing bar is the utilization rate height again.
A kind of antirust protection method of reserved steel bar, it comprises that step is as follows: get the outside that the pvc pipe material is enclosed within reserved steel bar, water intaking silt particle slurry is filled the slit between pvc pipe material and the reserved steel bar; Described cement mortar is by cement, and Sha Heshui makes by weight ratio, and wherein cement is 180～220 parts: 1300～1700 parts in sand: 250～310 parts in water; The fineness modulus of sand is 3.0～2.3.
The invention has the beneficial effects as follows, the present invention adopts the pvc pipe material to be enclosed within the reserved steel bar outside, the diameter of pvc pipe material is more than 2 times of reserved steel bar diameter, and low strength cement, middle granularity sand and the composite cement mortar of water poured into slit between pvc pipe material and the reserved steel bar, like this when will utilize reserved steel bar again, easily priming charge cement mortar and pvc pipe material are removed, the characteristic of reserved steel bar is the same with initial characteristic, the phenomenon of can not getting rusty, and the cost of this rust-proofing method is low, effective, practicality, convenient.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is described in detail.
Fig. 1: be structural representation of the present invention.
The specific embodiment:
Embodiment 1:
A kind of antirust protection method of reserved steel bar, it comprises that step is as follows: get the outside that pvc pipe material 1 is enclosed within reserved steel bar 3, the diameter of described pvc pipe material 1 is more than 2 times of reserved steel bar 3 diameters; Water intaking silt particle slurry 2 slits of filling between pvc pipe material 1 and the reserved steel bar 3; Described cement mortar 2 is by cement, and Sha Heshui makes by weight ratio, and wherein cement is 200 parts, 1500 parts in sand, 280 parts in water; The label of cement is 32.5#; The fineness modulus of sand is 2.7.
Embodiment 2:
A kind of antirust protection method of reserved steel bar, it comprises that step is as follows: get the outside that pvc pipe material 1 is enclosed within reserved steel bar 3, the diameter of described pvc pipe material 1 is more than 2 times of reserved steel bar 3 diameters; Water intaking silt particle slurry 2 slits of filling between pvc pipe material 1 and the reserved steel bar 3; Described cement mortar 2 is by cement, and Sha Heshui makes by weight ratio, and wherein cement is 180 parts, 1700 parts in sand, 310 parts in water; The label of cement is 32.5#; The fineness modulus of sand is 2.3.
Embodiment 3:
A kind of antirust protection method of reserved steel bar, it comprises that step is as follows: get the outside that pvc pipe material 1 is enclosed within reserved steel bar 3, the diameter of described pvc pipe material 1 is more than 2 times of reserved steel bar 3 diameters; Water intaking silt particle slurry 2 slits of filling between pvc pipe material 1 and the reserved steel bar 3; Described cement mortar 2 is by cement, and Sha Heshui makes by weight ratio, and wherein cement is 220 parts, 1300 parts in sand, 250 parts in water; The label of cement is 32.5#; The fineness modulus of sand is 3.0.
Claims (1)
1, a kind of antirust protection method of reserved steel bar, it is as follows to it is characterized in that comprising step: get the outside that the pvc pipe material is enclosed within reserved steel bar, water intaking silt particle slurry is filled the slit between pvc pipe material and the reserved steel bar; Described cement mortar is by cement, and Sha Heshui makes by weight ratio, and wherein cement is 180～220 parts: 1300～1700 parts in sand: 250～310 parts in water; The fineness modulus of sand is 3.0～2.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100123405A CN101603369A (en) | 2009-07-02 | 2009-07-02 | Antirust protection method of reserved steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100123405A CN101603369A (en) | 2009-07-02 | 2009-07-02 | Antirust protection method of reserved steel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101603369A true CN101603369A (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100123405A Pending CN101603369A (en) | 2009-07-02 | 2009-07-02 | Antirust protection method of reserved steel bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101603369A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967287A (en) * | 2014-05-27 | 2014-08-06 | 重庆工商职业学院 | Construction engineering embedded exposed steel bar rust-proof device |
| CN105970817A (en) * | 2016-05-30 | 2016-09-28 | 中国铁建大桥工程局集团有限公司 | Rust preventing method of embedded bars of pier body under complex sea area conditions |
| CN107288360A (en) * | 2016-03-31 | 2017-10-24 | 中国二十冶集团有限公司 | A kind of guard method for preventing that reserved steel bar from getting rusty |
| CN109440949A (en) * | 2018-11-21 | 2019-03-08 | 三峡大学 | A kind of magnetohydrodynamic plant and method for steel antirust |
| CN113877789A (en) * | 2021-09-13 | 2022-01-04 | 中国电建集团贵州电力设计研究院有限公司 | Rust prevention method for longitudinally stressed steel bars |
-
2009
- 2009-07-02 CN CNA2009100123405A patent/CN101603369A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967287A (en) * | 2014-05-27 | 2014-08-06 | 重庆工商职业学院 | Construction engineering embedded exposed steel bar rust-proof device |
| CN103967287B (en) * | 2014-05-27 | 2016-03-23 | 重庆工商职业学院 | The pre-buried exposed steel bar Rustproofing apparatus of construction work |
| CN107288360A (en) * | 2016-03-31 | 2017-10-24 | 中国二十冶集团有限公司 | A kind of guard method for preventing that reserved steel bar from getting rusty |
| CN105970817A (en) * | 2016-05-30 | 2016-09-28 | 中国铁建大桥工程局集团有限公司 | Rust preventing method of embedded bars of pier body under complex sea area conditions |
| CN109440949A (en) * | 2018-11-21 | 2019-03-08 | 三峡大学 | A kind of magnetohydrodynamic plant and method for steel antirust |
| CN113877789A (en) * | 2021-09-13 | 2022-01-04 | 中国电建集团贵州电力设计研究院有限公司 | Rust prevention method for longitudinally stressed steel bars |
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| 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: 20091216 |