CN108373287A - A kind of concrete corrosion resistant agent - Google Patents
A kind of concrete corrosion resistant agent Download PDFInfo
- Publication number
- CN108373287A CN108373287A CN201810409104.6A CN201810409104A CN108373287A CN 108373287 A CN108373287 A CN 108373287A CN 201810409104 A CN201810409104 A CN 201810409104A CN 108373287 A CN108373287 A CN 108373287A
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- CN
- China
- Prior art keywords
- parts
- concrete
- sodium
- corrosion resistant
- resistant agent
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of concrete corrosion resistant agents, include the constituent of following mass fraction：Sodium molybdate：25~60 parts；Calgon：15~46 parts；Sodium abietate：3~17 parts；Sodium gluconate：10~28 parts；Flyash：40~80 parts；And water：280~540 parts.A kind of concrete corrosion resistant agent proposed by the invention has good inhibition antiseptic property, environmentally friendly, and have both good diminishing, slow setting and the performance of bleed, can be applied to that chlorine ion concentration is higher, has the adverse circumstances such as alternation of wetting and drying and severe cold.
Description
Technical field
The present invention relates to composite concrete additive field, more particularly to a kind of concrete corrosion resistant agent.
Background technology
Concrete is a kind of economic and practical structural material, is nowadays widely used in bridge, building, dykes and dams and tunnel
Etc. in structures, reinforcement in concrete corrosion has become an important factor for influencing reinforced concrete structure durability, especially when residing
Environment is rich in various chlorine ion concentrations, and when alternation of wetting and drying or severe cold are extremely shone, and corrosion rate is obviously aggravated.Concrete corrosion resistant agent
In often add inorganic nitrite constituents, belong to typical Anodic Type corrosion inhibitor.But it may cause when incorporation deficiency
Local corrosion, the progress of accelerated corrosion, and it is unfavorable for environmental protection.
Invention content
The main object of the present invention is to propose a kind of concrete corrosion resistant agent, it is intended to improve the property of existing concrete corrosion inhibitor
Energy.
To achieve the above object, a kind of concrete corrosion resistant agent proposed by the present invention, including following mass fraction composition at
Point：
Sodium molybdate：25~60 parts；
Calgon：15~46 parts；
Sodium abietate：3~17 parts；
Sodium gluconate：10~28 parts；
Flyash：40~80 parts；And
Water：280~540 parts.
Preferably, the gross mass number of the sodium molybdate and the calgon is not less than 50 parts.
Preferably, the mass fraction of the sodium gluconate is 16~22 parts.
Concrete corrosion resistant agent provided by the invention is environmental-friendly compared to the corrosion inhibitor of the ingredients such as addition calcium nitrite
Type corrosion inhibitor, wherein the sodium molybdate is compounded with the calgon, can play good corrosion mitigating effect；The rosin
Sour sodium is used to improve the workability and durability of the concrete as air entraining agent；The sodium gluconate is as the concrete
Retarder, while also improving the performance of existing corrosion inhibitor with good water-reducing effect, can be applied to chlorine ion concentration
It is higher, have the adverse circumstances such as alternation of wetting and drying and severe cold.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.
A kind of concrete corrosion resistant agent proposed by the invention, includes the constituent of following mass fraction：Sodium molybdate：25~
60 parts；Calgon：15~46 parts；Sodium abietate：3~17 parts；Sodium gluconate：10~28 parts；Flyash：40~80
Part；And water：280~540 parts.
In technical solution provided by the invention, the sodium molybdate alleviates corrosion for forming a film, and has toxicity, but compared to Asia
Toxicity is relatively low for the corrosion inhibitor of calcium nitrate class, and environmental pollution degree is smaller；It is further multiple with the calgon again
Match, reduces the usage amount of molybdate so that toxicity is lower simultaneously, the calcium etc. that the calgon is supplied with the coal ash lifting
Metal ion produces soluble complexes, to form sedimentation type protective film, is overlying on the surface of the concrete or reinforcing bar, rises
To good corrosion mitigating effect.In addition, the sodium abietate is relatively low as air entraining agent cost, it is preferable with the compatibility of concrete, and
Insoluble salt is produced after calcium ion reaction, make that concrete introduces in whipping process a large amount of are uniformly distributed, stablize and close
Micro-bubble, the workability for improving the concrete and durability；The sodium gluconate is as the concrete
Retarder can significantly delay the setting time of the setting time and end of a period of the starting of the concrete, while also with good
Good water-reducing effect reduces economic cost.The concrete corrosion resistant agent proposed by the present invention is environmentally friendly corrosion inhibitor, is had
Good inhibition antiseptic property, while having both good diminishing, slow setting and the performance of bleed.
Preferably, in order to ensure the good inhibition anti-corrosion effect of the concrete corrosion resistant agent, the sodium molybdate and described six
Sodium metaphosphate is not less than 50 parts as corrosion inhibiter, the gross mass number of the two, so may insure the surface tool of the concrete
There is good protective film, prevents aqueous medium from entering the inside of the concrete, greatly increase the impervious of the concrete
Saturating ability.
Preferably, in the concrete corrosion resistant agent, the sodium gluconate has both the function of water-reducing agent and retarder, matter
The hydration and hardening time of how much required water consumptions and the concrete when affecting the concrete mixing of amount number.
Wherein, when the mass fraction of the sodium gluconate is 16~24 parts, slow setting and water reducing ability in the concrete corrosion resistant agent
It can be more preferable.
Technical scheme of the present invention is described in further detail below in conjunction with specific embodiment, it should be understood that following real
It applies example to be only used to explain the present invention, be not intended to limit the present invention.
Embodiment 1
According to the mass fraction, by sodium molybdate：25 parts；Calgon：20 parts；Sodium abietate：3 parts；Sodium gluconate：28
Part；Flyash：60 parts；Water：400 parts of uniform mixing participate in concrete, obtain concrete mix.
Embodiment 2
According to the mass fraction, by sodium molybdate：45 parts；Calgon：15 parts；Sodium abietate：17 parts；Sodium gluconate：
10 parts；Flyash：40 parts；Water：280 parts of uniform mixing participate in concrete, obtain concrete mix.
Embodiment 3
According to the mass fraction, by sodium molybdate：60 parts；Calgon：46 parts；Sodium abietate：10 parts；Sodium gluconate：
16 parts；Flyash：80 parts；Water：540 parts of uniform mixing participate in concrete, obtain concrete mix.
Embodiment 4
According to the mass fraction, by sodium molybdate：60 parts；Calgon：46 parts；Sodium abietate：10 parts；Sodium gluconate：
20 parts；Flyash：80 parts；Water：540 parts of uniform mixing participate in concrete, obtain concrete mix.
Embodiment 5
According to the mass fraction, by sodium molybdate：60 parts；Calgon：46 parts；Sodium abietate：10 parts；Sodium gluconate：
22 parts；Flyash：80 parts；Water：540 parts of uniform mixing participate in concrete, obtain concrete mix.
The efficient corrosion inhibitor of commercially available zincum salts is only added in concrete as a comparison case, then standard curing 3d, 7d and 28d.
According to GB/T 50080-2002 Standard for test methods of properties of ordinary concrete mixture, tests in each embodiment and comparative example and mix respectively
Water-reducing rate, the slump/divergence, workability and the compression strength of soil are coagulated, the results are shown in Table 1.
The properties test result of 1 each embodiment of table and the concrete in comparative example
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by present specification, or directly/it is used in other indirectly
Relevant technical field is included in the scope of patent protection of the present invention.
Claims (3)
1. a kind of concrete corrosion resistant agent, which is characterized in that include the constituent of following mass fraction：
Sodium molybdate：25~60 parts；
Calgon：15~46 parts；
Sodium abietate：3~17 parts；
Sodium gluconate：10~28 parts；
Flyash：40~80 parts；And
Water：280~540 parts.
2. concrete corrosion resistant agent as described in claim 1, which is characterized in that the sodium molybdate and the calgon it is total
Mass fraction is not less than 50 parts.
3. concrete corrosion resistant agent as described in claim 1, which is characterized in that the mass fraction of the sodium gluconate be 16~
22 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409104.6A CN108373287A (en) | 2018-05-03 | 2018-05-03 | A kind of concrete corrosion resistant agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409104.6A CN108373287A (en) | 2018-05-03 | 2018-05-03 | A kind of concrete corrosion resistant agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108373287A true CN108373287A (en) | 2018-08-07 |
Family
ID=63033103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810409104.6A Pending CN108373287A (en) | 2018-05-03 | 2018-05-03 | A kind of concrete corrosion resistant agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108373287A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110615632A (en) * | 2019-10-28 | 2019-12-27 | 山东交通职业学院 | Composite steel bar corrosion inhibitor for marine environment and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630722A (en) * | 2016-09-13 | 2017-05-10 | 青建集团股份公司 | Environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars |
| WO2018035850A1 (en) * | 2016-08-24 | 2018-03-01 | 曹玲玲 | Water-soluble greasy mould release agent for concrete and preparation method therefor |
-
2018
- 2018-05-03 CN CN201810409104.6A patent/CN108373287A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018035850A1 (en) * | 2016-08-24 | 2018-03-01 | 曹玲玲 | Water-soluble greasy mould release agent for concrete and preparation method therefor |
| CN106630722A (en) * | 2016-09-13 | 2017-05-10 | 青建集团股份公司 | Environmentally friendly high-performance corrosion inhibitor for reinforcing steel bars |
Non-Patent Citations (1)
| Title |
|---|
| 施惠生: "《混凝土外加剂实用技术大全》", 31 January 2008, 中国建材工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110615632A (en) * | 2019-10-28 | 2019-12-27 | 山东交通职业学院 | Composite steel bar corrosion inhibitor for marine environment and application thereof |
| CN110615632B (en) * | 2019-10-28 | 2021-08-20 | 山东交通职业学院 | Composite steel bar corrosion inhibitor for marine environment and application thereof |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180807 |