CN104556819A - Marine engineering concrete corrosion inhibitor - Google Patents
Marine engineering concrete corrosion inhibitor Download PDFInfo
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- CN104556819A CN104556819A CN201410818205.0A CN201410818205A CN104556819A CN 104556819 A CN104556819 A CN 104556819A CN 201410818205 A CN201410818205 A CN 201410818205A CN 104556819 A CN104556819 A CN 104556819A
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- corrosion inhibitor
- concrete
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- alcohol monoisopropanolamine
- butenedioic anhydride
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Abstract
The invention discloses a marine engineering concrete corrosion inhibitor which consists of a diethanol monoisopropanolamine maleate compound, carboxymethylcellulose, a calcium aluminate expanding agent, an organosilicon water repellent, a lignosulfonate water-reducing agent, sodium metasilicate, sodium gluconate and silica fume. The marine engineering concrete corrosion inhibitor does not contain nitrite, chromate and other matters harmful to human bodies through reasonably matching and compounding of a variety of materials, the crack resistance, the volume stability, the durability, the water-retaining property and the segregation resistance of concrete are greatly improved, and the service life of the marine engineering concrete is prolonged.
Description
Technical field
The present invention relates to building material technical field, be specifically related to a kind of maritime concrete corrosion inhibitor.
Background technology
The concrete (maritime concrete) that oceanographic engineering is used, also claims ocean concrete.Oceanographic engineering comprise coastal engineering (as commercial port, fishing port, naval port, estuary is renovated, tide sluice, industrial diversion, Oversea bridge, shore protection, tide power plant etc.) and offshore engineering (also claiming offshore engineering, as large-sized deep water harbour and ocean platform etc.), every structures of constructing under seawater influence (as close on the inland water port in river mouth, bridge etc.) though and on the coast, be often subject to the structure concrete used that the spray splashes, all belong to maritime concrete.Maritime concrete due to frequently or periodically with contact with sea water, be subject to the physics chemical action of seawater or marine atmosphere (containing chlorion), or by wave, the impact of flowing water, the effects such as wearing and tearing, and sustain damage, shorten the durability, therefore the workability that maritime concrete removes intensity and mixture should meet design, outside construction requirement, still should have required impermeability, frost resistance, corrosion stability, prevents the performance that steel bar corrosion and opposing ice slush clash into.Along with a large amount of construction of China coastal seas engineering, the weather resistance increasing substantially maritime concrete has great importance.
Investigation shows, under ocean environment, the chief destructive reason of concrete structure is steel bar corrosion effect and Sulfates erosion action, and the leading inducement of steel bar corrosion is Cl in seawater
-.Therefore, develop high performance maritime concrete or suitable admixture adds in maritime concrete, increase substantially concrete permeability resistance, reduce shrinkage cracking, reduce the harmful ion composition in inside concrete liquid phase, stop Cl
-concrete hole mutually in migration, be improve Marine Reinforced Concrete Structures resistant to sea water and other hazardous medium to corrode, significantly extend the key problem in technology in prevention of marine concrete structures work-ing life.From marine concrete corrosion resistant performance requirement, exploitation one has multi-functional, and multi-component high-performance marine concrete corrosion resistant additive, has important practical significance to the application of maritime concrete.
Summary of the invention
The invention provides a kind of ocean concrete corrosion inhibitor, apply multiple anticorrosive mechanism, significantly can strengthen the resistance to corrosion of ocean concrete.
A kind of maritime concrete corrosion inhibitor is made up of the material of following mass percent: di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds 10-15%, carboxymethyl cellulose 1-5%, calcium sulphoaluminate class swelling agent 20-30%, organosilicon moisture repellent 0.1-1%, ligno-sulfate based plasticizer 5-10%, Starso 0.5-1%, Sunmorl N 60S 1-3%, surplus is silicon ash.
Described, di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds prepares by the following method: in reactor, add di-alcohol monoisopropanolamine and MALEIC ANHYDRIDE, add catalyzer, 0.4MPa is decompressed under agitation condition, heating, temperature controls at 100 DEG C, maintenance system constant temperature, measured the acidity of a system every one hour, stop without reaction during considerable change to acid number; Then be cooled to room temperature, use saturated sodium carbonate solution and distilled water wash successively, obtain di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds.
Preferably, corrosion inhibitor is made up of the material of following mass percent: di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds 13%, carboxymethyl cellulose 3%, calcium sulphoaluminate class swelling agent 25%, organosilicon moisture repellent 0.7%, ligno-sulfate based plasticizer 8%, Starso 0.8%, Sunmorl N 60S 2%, surplus is silicon ash.
Described, silicon ash is densified silica fume, specific surface area>=190000cm
2/ g.
Beneficial effect of the present invention:
1. the present invention is by the rational Match of multiple material, and compound plays synergy, well be attached together with the mineral composition in concrete, form one deck firmly film, significantly improve concrete splitting resistance, volume stability, weather resistance, water-retentivity and education resistance, prevent Cl
-intrusion, thus reach and prevent seawater and containing the erosion of objectionable impurities, thus reach the object improving maritime concrete work-ing life.
2. corrosion inhibitor of the present invention is not containing harmful nitrite, chromic salt etc., and low alkali is without chlorine, without ammonia, nontoxic non-stimulated, pollution-free, and has the stability of good light and heat, proper storage and transport.
3. di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds and organosilicon moisture repellent have good excitation to concrete admixture, thin film is formed at the particle surface of adulterant, reduce intergranular direct contact, increase its mobility, concrete compactness is improved, thus increases its corrosion resistance.
4. the particle diameter of densified silica fume is much smaller than the median size of cement, can be filled in the hole after cement granules accumulation, form the quaternary complex cementitious system that there is good microstage and join, improve concrete intensity, and mutually fill in hydration process, block kapillary penetrating passage, improve concrete density, to block the passage that corrosive medium invades, significantly improve concrete impermeability and resistance to chemical attack, extend concrete work-ing life.
Embodiment
Below in conjunction with the embodiments, be described further.
embodiment 1
A kind of maritime concrete corrosion inhibitor is made up of the material of following mass percent: di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds 10%, carboxymethyl cellulose 1%, calcium sulphoaluminate class swelling agent 30%, organosilicon moisture repellent 0.1%, ligno-sulfate based plasticizer 5%, Starso 0.5%, Sunmorl N 60S 1%, surplus is silicon ash.
Di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds prepares by the following method: in reactor, add di-alcohol monoisopropanolamine and MALEIC ANHYDRIDE, add catalyzer, 0.4MPa is decompressed under agitation condition, heating, temperature controls at 100 DEG C, maintenance system constant temperature, measured the acidity of a system every one hour, stop to acid number without reaction during considerable change; Then be cooled to room temperature, use saturated sodium carbonate solution and distilled water wash successively, obtain di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds.
Silicon ash is densified silica fume, specific surface area>=190000cm
2/ g.
Maritime concrete corrosion inhibitor prepared by the present embodiment is according to " ASTM1202 agent on crack resistance of concrete Cl
-perviousness electrometric method " and " JTJ275-2000 concrete for marine works structural anticorrosion erosion technical specifications " middle Cl
-perviousness rapid assay methods measures displacement flux, and mix in C40 maritime concrete according to 3% of cement quality in maritime concrete, 28 days displacement fluxes of this maritime concrete are less than 900C, ultimate compression strength raising 12% compared with normal concrete in 28 days.
embodiment 2
A kind of maritime concrete corrosion inhibitor is made up of the material of following mass percent: di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds 13%, carboxymethyl cellulose 3%, calcium sulphoaluminate class swelling agent 25%, organosilicon moisture repellent 0.7%, ligno-sulfate based plasticizer 8%, Starso 0.8%, Sunmorl N 60S 2%, surplus is silicon ash.
The preparation method of di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds is with embodiment 1.
Silicon ash is densified silica fume, specific surface area>=190000cm
2/ g.
Maritime concrete corrosion inhibitor prepared by the present embodiment is according to " ASTM1202 agent on crack resistance of concrete Cl
-perviousness electrometric method " and " JTJ275-2000 concrete for marine works structural anticorrosion erosion technical specifications " middle Cl
-perviousness rapid assay methods measures displacement flux, and mix in C40 maritime concrete according to 4% of cement quality in maritime concrete, 28 days displacement fluxes of this maritime concrete are less than 600C, ultimate compression strength raising 24% compared with normal concrete in 28 days.
embodiment 3
A kind of maritime concrete corrosion inhibitor is made up of the material of following mass percent: di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds 15%, carboxymethyl cellulose 5%, calcium sulphoaluminate class swelling agent 20%, organosilicon moisture repellent 1%, ligno-sulfate based plasticizer 10%, Starso 1%, Sunmorl N 60S 3%, surplus is silicon ash.
The preparation method of di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds is with embodiment 1.
Silicon ash is densified silica fume, specific surface area>=190000cm
2/ g.
Maritime concrete corrosion inhibitor prepared by the present embodiment is according to " ASTM1202 agent on crack resistance of concrete Cl
-perviousness electrometric method " and " JTJ275-2000 concrete for marine works structural anticorrosion erosion technical specifications " middle Cl
-perviousness rapid assay methods measures displacement flux, and mix in C40 maritime concrete according to 5% of cement quality in maritime concrete, 28 days displacement fluxes of this maritime concrete are less than 900C, ultimate compression strength raising 25% compared with normal concrete in 28 days.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a maritime concrete corrosion inhibitor, it is characterized in that, be made up of the material of following mass percent: di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds 10-15%, carboxymethyl cellulose 1-5%, calcium sulphoaluminate class swelling agent 20-30%, organosilicon moisture repellent 0.1-1%, ligno-sulfate based plasticizer 5-10%, Starso 0.5-1%, Sunmorl N 60S 1-3%, surplus is silicon ash;
Described di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds prepares by the following method: in reactor, add di-alcohol monoisopropanolamine and MALEIC ANHYDRIDE, add catalyzer, 0.4MPa is decompressed under agitation condition, heating, temperature controls at 100 DEG C, maintenance system constant temperature, measured the acidity of a system every one hour, stop to acid number without reaction during considerable change; Then be cooled to room temperature, use saturated sodium carbonate solution and distilled water wash successively, obtain di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds.
2. corrosion inhibitor according to claim 1, it is characterized in that, described corrosion inhibitor is made up of the material of following mass percent: di-alcohol monoisopropanolamine cis-butenedioic anhydride compounds 13%, carboxymethyl cellulose 3%, calcium sulphoaluminate class swelling agent 25%, organosilicon moisture repellent 0.7%, ligno-sulfate based plasticizer 8%, Starso 0.8%, Sunmorl N 60S 2%, surplus is silicon ash.
3. corrosion inhibitor according to claim 1 and 2, is characterized in that, described silicon ash is densified silica fume, specific surface area>=190000cm
2/ g.
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| CN201410818205.0A CN104556819B (en) | 2014-12-25 | 2014-12-25 | A kind of maritime concrete corrosion inhibitor |
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| CN201410818205.0A CN104556819B (en) | 2014-12-25 | 2014-12-25 | A kind of maritime concrete corrosion inhibitor |
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| CN104556819B CN104556819B (en) | 2016-07-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130271A (en) * | 2015-09-02 | 2015-12-09 | 王嘉文 | Composite concrete expansive agent |
| CN106277907A (en) * | 2016-08-12 | 2017-01-04 | 山东港湾建设集团有限公司 | The anti-corrosion admixture of Marine Engineering High-performance Concrete is produced based on sea water sea sand |
| CN108997151A (en) * | 2018-08-30 | 2018-12-14 | 济南大学 | The preparation method and products obtained therefrom of a kind of beta-unsaturated esters of alcohol-containing amine groups and application |
| CN109485299A (en) * | 2018-12-13 | 2019-03-19 | 武汉京宁好帮手科技有限公司 | A kind of multiple-effect concrete structure self-waterproofing additive with self-reparing capability |
| CN109734915A (en) * | 2018-12-25 | 2019-05-10 | 浙江清华柔性电子技术研究院 | Inhibitor and preparation method thereof, application |
| CN113831055A (en) * | 2021-10-19 | 2021-12-24 | 同济大学 | Responsive concrete chloride ion targeted adsorbent and preparation method and application thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130271A (en) * | 2015-09-02 | 2015-12-09 | 王嘉文 | Composite concrete expansive agent |
| CN106277907A (en) * | 2016-08-12 | 2017-01-04 | 山东港湾建设集团有限公司 | The anti-corrosion admixture of Marine Engineering High-performance Concrete is produced based on sea water sea sand |
| CN106277907B (en) * | 2016-08-12 | 2018-08-10 | 山东港湾建设集团有限公司 | The anti-corrosion admixture of Marine Engineering High-performance Concrete is produced based on seawater sea sand |
| CN108997151A (en) * | 2018-08-30 | 2018-12-14 | 济南大学 | The preparation method and products obtained therefrom of a kind of beta-unsaturated esters of alcohol-containing amine groups and application |
| CN109485299A (en) * | 2018-12-13 | 2019-03-19 | 武汉京宁好帮手科技有限公司 | A kind of multiple-effect concrete structure self-waterproofing additive with self-reparing capability |
| CN109485299B (en) * | 2018-12-13 | 2021-07-20 | 武汉惠帮地平工程有限公司 | Multi-effect concrete structure self-waterproof additive with self-repairing capability |
| CN109734915A (en) * | 2018-12-25 | 2019-05-10 | 浙江清华柔性电子技术研究院 | Inhibitor and preparation method thereof, application |
| CN109734915B (en) * | 2018-12-25 | 2021-07-13 | 浙江清华柔性电子技术研究院 | Inhibitor and preparation method and application thereof |
| CN113831055A (en) * | 2021-10-19 | 2021-12-24 | 同济大学 | Responsive concrete chloride ion targeted adsorbent and preparation method and application thereof |
| CN113831055B (en) * | 2021-10-19 | 2022-12-16 | 同济大学 | Responsive concrete chloride ion targeted adsorbent and preparation method and application thereof |
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|---|---|
| CN104556819B (en) | 2016-07-06 |
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Denomination of invention: A corrosion inhibitor for marine concrete Effective date of registration: 20210806 Granted publication date: 20160706 Pledgee: Bank of Rizhao Co.,Ltd. Juxian sub branch Pledgor: RIZHAO FEM NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2021980007367 |
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Date of cancellation: 20221130 Granted publication date: 20160706 Pledgee: Bank of Rizhao Co.,Ltd. Juxian sub branch Pledgor: RIZHAO FEM NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2021980007367 |
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