CN106630722A - Environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars - Google Patents
Environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars Download PDFInfo
- Publication number
- CN106630722A CN106630722A CN201610818148.5A CN201610818148A CN106630722A CN 106630722 A CN106630722 A CN 106630722A CN 201610818148 A CN201610818148 A CN 201610818148A CN 106630722 A CN106630722 A CN 106630722A
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- CN
- China
- Prior art keywords
- parts
- sodium
- corrosion inhibitor
- reinforcing steel
- gluconate
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- 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.)
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Classifications
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/61—Corrosion inhibitors
Abstract
The invention discloses an environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars. The environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars consists of the following raw materials in parts by weight: sodium benzoate 5-20 parts, sodium silicate 5-8 parts, gluconic acid 2-7 parts, dicyclohexyl amine nitrite 5-15 parts, flyash 4-12 parts, nitrite 7-14 parts, sodium hexametaphosphate 5-10 parts, diethylenetriamine 6-12 parts, sodium molybdate 2-8 parts, sodium citrate 2-4 parts, sodium monofluorophosphate 5-8 parts, gluconate 1-10 parts and borate 1-5 parts. The environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars is good in corrosion inhibition effect and does not have bad influence on performance of concrete.
Description
Technical field
The present invention relates to technical field of building construction, and in particular to a kind of environment-friendly and high-performance reinforcing steel bar corrosion inhibitor.
Background technology
Armored concrete is a kind of economical and practical structural material, in bridge, building, dykes and dams, seabed tunnel and large-scale
It is used widely in the structures such as ocean platform, reinforcement in concrete corrosion becomes affects reinforced concrete structure durability
Principal element.In newly-built armored concrete, due to the presence of high alkalinity Pore Solution, rebar surface can generate one layer of passivating film,
Reinforcing bar is played a protective role.But As time goes on, because the intrusion of CO2 causes the carbonization of concrete, concrete pore
The basicity of liquid is reduced, and the passivating film of rebar surface becomes unstable, if chlorion permeates to rebar surface in surrounding medium, meeting
Cause the heavy corrosion of reinforcing bar.
For the protection of reinforcing bar, corrosion inhibitor can effectively prevent or delay destruction of the chlorion to rebar passivation film, steel
The major advantage of bar rust inhibitor once property use and it is permanently effective, compared with epoxy deep layer, cathodic protection, using reinforcing bar resistance become rusty
Agent spends little, and construction is simple, convenient, and after reinforcing steel bar corrosion inhibitor is disposably mixed in concrete, is not required in lifetime
Safeguard, use range light, and can use in a large amount of recovery projects, it is especially effective to bar in chlorine salt solution.
Difference according to chemical composition, reinforcing steel bar corrosion inhibitor can be divided into three classes：Main inorganic type, the master being made up of inorganic substances
The organic type to be made up of organic substance and the mixed type being made up of inorganic and organic substance.Inorganic type corrosion inhibitor mainly includes Asia
Nitrate, nitrate, chromate, bichromate, phosphate, polyphosphate, silicate, molybdate etc., wherein nitrites
It is that earliest reinforcing steel bar corrosion inhibitor is applied in research, it is the Anodic Type corrosion inhibitor of a quasi-representative.But may lead when incorporation is not enough
Cause local corrosion, the carrying out of accelerated corrosion.Organic type corrosion inhibitor include amine, alkamine, beautiful jade polyamine, alkanolamine,
Fatty acid ester and their salt, its advantage is：(1) corrosion can be provided to armored concrete under various chlorine ion concentrations
Protection；(2) can disperse in concrete, thus inhibitory action can be played to reinforcement corrosion electrochemical cathode process, and can be right
Anodic attack electrochemical process plays inhibitory action；(3) nontoxic, environmental protection.
The content of the invention
In view of the shortcomings of the prior art, to be to provide a kind of resistance rust effect good for the technical problem to be solved,
And the environment-friendly and high-performance reinforcing steel bar corrosion inhibitor that concrete performance is had no adverse effects.
To solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of environment-friendly and high-performance reinforcing steel bar corrosion inhibitor,
It is prepared from the following raw materials in parts by weight：Sodium Benzoate 5-20 parts, sodium metasilicate 5-8 parts, gluconic acid 2-7 parts, the ring of nitrous acid two
Hexylamine 5-15 parts, flyash 4-12 parts, nitrite 7-14 parts, calgon 5-10 parts, diethylenetriamine 6-12 parts, molybdenum
Sour sodium 2-8 parts, sodium citrate 2-4 parts, sodium monofluorophosphate 5-8 parts, gluconate 1-10 parts, borate 1-5 parts.
Above-mentioned environment-friendly and high-performance reinforcing steel bar corrosion inhibitor, it is characterised in that：Described sodium monofluorophosphate is technical grade, described
Gluconate is one or two in sodium gluconate, calcium gluconae, zinc gluconate, and the borate is tetraboric acid
Sodium.
The advantage of environment-friendly and high-performance reinforcing steel bar corrosion inhibitor of the present invention is：
1st, environment-friendly and high-performance reinforcing steel bar corrosion inhibitor of the present invention, in rebar surface fine and close diaphragm is generated, and neither affects concrete
Performance, can play resistance rust effect to reinforcing bar again, effectively slow down and prevent the corrosion of reinforced concrete, with efficient, nothing
Malicious, free of contamination feature, can be used for the reinforced concrete structures such as water conservancy, railway, civil buildings.
2nd, environment-friendly and high-performance reinforcing steel bar corrosion inhibitor of the present invention, can effectively prevent the corrosion of concrete reinforcement, and to concrete
Performance has no adverse effects, and can be widely used in the xoncrete structure under bar in chlorine salt solution.
3rd, environment-friendly and high-performance reinforcing steel bar corrosion inhibitor of the present invention, can suitably improve concrete performance, slow down corrosive medium to coagulation
Infiltration in soil, while the chemisorbed film of one layer of densification, the corrosion completely cut off in concrete hole solution can be formed in rebar surface
Medium and oxygen are directly contacted with reinforcing bar, prevent electrochemical corrosion from carrying out, so as to prevent the action of rust to reinforcing bar.This
It is bright few with consumption, it is to avoid the advantages of declining to the protective effect of reinforcing bar when single corrosion inhibitor consumption is not enough, is a kind of high-performance
Rust-resistant agent for concrete reinforcing bar, can be widely applied to the engineerings such as harbour, railway, coastal building, civil buildings newly mixes reinforced concrete
In soil structure.
Specific embodiment
The present invention is described in further detail below.
Embodiment one, a kind of environment-friendly and high-performance reinforcing steel bar corrosion inhibitor, are prepared from the following raw materials in parts by weight：Sodium Benzoate 5
Part, 5 parts of sodium metasilicate, 2 parts of gluconic acid, 5 parts of dicyclohexyl amine nitrite, 4 parts of flyash, 7 parts of nitrite, calgon 5
Part, 6 parts of diethylenetriamine, 2 parts of sodium molybdate, 2 parts of sodium citrate, 5 parts of sodium monofluorophosphate, 1 part of gluconate, borate 1
Part.
Described sodium monofluorophosphate is technical grade, and described gluconate is sodium gluconate, calcium gluconae, grape
One or two in saccharic acid zinc, the borate is sodium tetraborate.
Embodiment two, a kind of environment-friendly and high-performance reinforcing steel bar corrosion inhibitor, are prepared from the following raw materials in parts by weight：Sodium Benzoate 10
Part, 7 parts of sodium metasilicate, 5 parts of gluconic acid, 10 parts of dicyclohexyl amine nitrite, 8 parts of flyash, 11 parts of nitrite, calgon
8 parts, 10 parts of diethylenetriamine, 6 parts of sodium molybdate, 3 parts of sodium citrate, 6 parts of sodium monofluorophosphate, 6 parts of gluconate, borate 3
Part.
Described sodium monofluorophosphate is technical grade, and described gluconate is sodium gluconate, calcium gluconae, grape
One or two in saccharic acid zinc, the borate is sodium tetraborate.
Embodiment three, a kind of environment-friendly and high-performance reinforcing steel bar corrosion inhibitor, are prepared from the following raw materials in parts by weight：Sodium Benzoate 20
Part, 8 parts of sodium metasilicate, 7 parts of gluconic acid, 15 parts of dicyclohexyl amine nitrite, 12 parts of flyash, 14 parts of nitrite, hexa metaphosphoric acid
10 parts of sodium, 12 parts of diethylenetriamine, 8 parts of sodium molybdate, 4 parts of sodium citrate, 8 parts of sodium monofluorophosphate, 10 parts of gluconate, boric acid
5 parts of salt.
Described sodium monofluorophosphate is technical grade, and described gluconate is sodium gluconate, calcium gluconae, grape
One or two in saccharic acid zinc, the borate is sodium tetraborate.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, in the essential scope of the present invention, the change made, changes, addition or replace, should all belong to of the invention
Protection domain.
Claims (2)
1. a kind of environment-friendly and high-performance reinforcing steel bar corrosion inhibitor, it is characterised in that：It is prepared from the following raw materials in parts by weight：Sodium Benzoate 5-
20 parts, sodium metasilicate 5-8 parts, gluconic acid 2-7 parts, dicyclohexyl amine nitrite 5-15 parts, flyash 4-12 parts, nitrite 7-14
Part, calgon 5-10 parts, diethylenetriamine 6-12 parts, sodium molybdate 2-8 parts, sodium citrate 2-4 parts, sodium monofluorophosphate
5-8 parts, gluconate 1-10 parts, borate 1-5 parts.
2. the environment-friendly and high-performance reinforcing steel bar corrosion inhibitor according to claim 1, it is characterised in that：Described sodium monofluorophosphate is
Technical grade, described gluconate is one or two in sodium gluconate, calcium gluconae, zinc gluconate, described
Borate is sodium tetraborate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610818148.5A CN106630722A (en) | 2016-09-13 | 2016-09-13 | Environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610818148.5A CN106630722A (en) | 2016-09-13 | 2016-09-13 | Environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106630722A true CN106630722A (en) | 2017-05-10 |
Family
ID=58851664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610818148.5A Pending CN106630722A (en) | 2016-09-13 | 2016-09-13 | Environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106630722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017304A (en) * | 2017-12-06 | 2018-05-11 | 国网福建省电力有限公司 | A kind of doped benzoic triethanolamine fat rust-resistant agent for concrete reinforcing bar |
| CN108373287A (en) * | 2018-05-03 | 2018-08-07 | 新力建设集团有限公司 | A kind of concrete corrosion resistant agent |
-
2016
- 2016-09-13 CN CN201610818148.5A patent/CN106630722A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017304A (en) * | 2017-12-06 | 2018-05-11 | 国网福建省电力有限公司 | A kind of doped benzoic triethanolamine fat rust-resistant agent for concrete reinforcing bar |
| CN108373287A (en) * | 2018-05-03 | 2018-08-07 | 新力建设集团有限公司 | A kind of concrete corrosion resistant agent |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |