CN102320774A - Anticorrosive, antirust, anti-seepage and anti-cracking composite additive special for concrete - Google Patents
Anticorrosive, antirust, anti-seepage and anti-cracking composite additive special for concrete Download PDFInfo
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- CN102320774A CN102320774A CN 201110212499 CN201110212499A CN102320774A CN 102320774 A CN102320774 A CN 102320774A CN 201110212499 CN201110212499 CN 201110212499 CN 201110212499 A CN201110212499 A CN 201110212499A CN 102320774 A CN102320774 A CN 102320774A
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Abstract
The invention relates to an anticorrosive, antirust, anti-seepage and anti-cracking composite additive special for concrete. The composite additive is prepared by mixing the following components in percentage by weight: 20-40% of silica powder, 16-24% of high-efficiency water reducing agent, 10-20% of YS chain silicate nanomaterial, 6-10% of triethanolamine, 20-40% of ferrous chloride and 6-10% of latex powder. By using the composite additive, the antirust effect is effectively exerted, the anti-seepage performance, freeze-thaw resistance and other durable performance indexes of the concrete are improved, the reaction of the alkaline aggregate in the concrete is effectively inhibited, and the shrinkage of the concrete is inhibited to a certain extent; and the composite additive can be widely applied in concrete buildings in salty soil, saline lakes and coastal areas, and can also be widely applied in nonferrous metal smelting, chemical industry, petroleum, steel and other industrial buildings in which corrosive substances exist.
Description
Technical field
The present invention relates to a kind of concrete admixture, relate in particular to a kind of concrete special anti-corrosion rust-resistance penetration-resistant anticracking compound additive.
Background technology
It seldom is the corrosion that single factors causes that concrete weather resistance is destroyed, when villaumite causes steel bar corrosion usually, and the erosion-corrosion effect of often concurrent vitriol, magnesium salts etc.Existing concrete admixture function is comparatively single; As need satisfy requirements such as anti-sulphur, resistance rust, impervious, anticracking simultaneously, then need mix different types of admixture, and the different sorts admixture possibly react to each other; The final concrete quality that influences; Can't produce a desired effect, cause finished product concrete performance and quality wayward, improve the engineering construction cost.
Therefore; How can once solve the serious problems that various effect is interweaved; Not only protect concrete not by the environment salt corrosion but also the steel bar corrosion situation does not take place will be the strong protection to concrete structure durability, become numerous concrete material researchists' focus.
Summary of the invention
Technical problem to be solved by this invention provides a kind of effective raising concrete durability, reduces the concrete special anti-corrosion rust-resistance penetration-resistant anticracking compound additive of engineering construction cost.
For addressing the above problem; A kind of concrete special anti-corrosion rust-resistance penetration-resistant anticracking compound additive of the present invention is characterized in that: this compound additive is that 20%～40% SILICA FUME, 16%～24% high efficiency water reducing agent, 10%～20% YS chain silicate nano material, 6%～10% trolamine, 20～40% iron protochloride and 6%～10% latex powder mix by weight percent.
Said SILICA FUME is that specific surface area is 16000～28000m
2/ kg, chloride ion content≤0.25%.
Said high efficiency water reducing agent is the powdered naphthalene water reducer.
Said trolamine is a purity greater than 99% trolamine.
Said latex powder is a redispersable latex powder.
The present invention compared with prior art has the following advantages:
1, the present invention is according to concrete and the Steel Concrete corrosion regularity in saline soil, coastland; Design and to resist sulfate radical, cl ions and their compound existence under the situation; Durability concrete compound additive when single collapse modes such as freeze-thaw damage, alkali-aggregate reaction, contraction or two kinds and above collapse mode take place simultaneously; For concrete durability Design in the corrosive environment proposes effective solution; For providing to try hard to keep, industry and the concrete weather resistance of covil construction protect; Thereby improve concrete work-ing life, reduce concrete structure and be used to the expense of keeping in repair and rebuilding, form the industrialization base of durability concrete admixture simultaneously.
2, has impervious, anticorrosion, as to prevent concrete alkali aggregate reaction SILICA FUME owing to adding among the present invention; Also be added with the chain silicate nano material simultaneously; Therefore, can effectively bring into play resistance rust effect, improve endurance quality indexs such as concrete anti-permeability performance, freezing and thawing performance; Effectively suppress the generation of alkali-aggregate reaction in the concrete, certain restraining effect is also arranged shrinking.
3, nontoxic, environmental protection: before the material involved in the present invention reaction, in the reaction and nontoxic, the free from extraneous odour in reaction back, environmentally safe.
4, owing to existing organic compound resistance rust composition among the present invention; Inorganic compounding resistance rust composition is also arranged; Therefore; When applying the present invention in the concrete, its comprehensive cost is lower than the concrete of sulfate+organic or inorganic rust inhibitor preparation, and performance is superior to the sulfate concrete; Can be widely used in the concrete construction of structures of saline soil, salt lake and coastland, also can be widely used in the Industrial buildings that material exists that is corrosive such as non-ferrous metal metallurgy, chemical industry, oil, iron and steel.
5, the present invention successful Application and obtain extensive favorable comment in key state projects such as Qinghai-Tibet Railway the second stage of the project, Qinghai-Tibet Railway multiple line engineering, wine steel Yuzhong steel mills, obtained good social benefit and economic benefit.
Embodiment
Equipment: mortar mixing machine, (Shanghai rises upright machinofacture ltd, WZL Agravicmixer).
Material:
1, SILICA FUME is that specific surface area is greater than 16000～28000m
2/ kg, chloride ion content≤0.25%, commercially available.
2, high efficiency water reducing agent is the powdery naphthalene water reducer, and manufacturer is the azure novel material ltd of section that builds in Gansu.
3, the manufacturer of YS chain silicate nano material is Lanzhou Nonferrous Construction New Technology Industrial Development Co., Ltd..
4, trolamine is a concentration greater than 99% commercially available trolamine.
5, iron protochloride is commercially available, first grade.
6, latex powder is redispersable latex powder (VAE), and is commercially available.
1 one kinds of concrete special anti-corrosions of embodiment rust-resistance penetration-resistant anticracking compound additive is that 20% SILICA FUME, 18% high efficiency water reducing agent, 15% YS chain silicate nano material, 6% trolamine, 34% iron protochloride and 7% latex powder mix by weight percent.
Its preparation method is: each component by after the proportioning weighing, is put into mixing machine, behind mixing 30～50min, be packaged into bag by every bag of 25kg and promptly get.
2 one kinds of concrete special anti-corrosions of embodiment rust-resistance penetration-resistant anticracking compound additive is that 32% SILICA FUME, 16% high efficiency water reducing agent, 20% YS chain silicate nano material, 6% trolamine, 20% iron protochloride and 6% latex powder mix by weight percent.
Its preparation method is with embodiment 1.
3 one kinds of concrete special anti-corrosions of embodiment rust-resistance penetration-resistant anticracking compound additive is that 40% SILICA FUME, 17% high efficiency water reducing agent, 10% YS chain silicate nano material, 7% trolamine, 20% iron protochloride and 6% latex powder mix by weight percent.
Its preparation method is with embodiment 1.
4 one kinds of concrete special anti-corrosions of embodiment rust-resistance penetration-resistant anticracking compound additive is that 24% SILICA FUME, 24% high efficiency water reducing agent, 11% YS chain silicate nano material, 10% trolamine, 21% iron protochloride and 10% latex powder mix by weight percent.
Its preparation method is with embodiment 1.
5 one kinds of concrete special anti-corrosions of embodiment rust-resistance penetration-resistant anticracking compound additive is that 21% SILICA FUME, 16%% high efficiency water reducing agent, 11% YS chain silicate nano material, 6% trolamine, 40% iron protochloride and 6% latex powder mix by weight percent.
Its preparation method is with embodiment 1.
6 one kinds of concrete special anti-corrosions of embodiment rust-resistance penetration-resistant anticracking compound additive is that 26% SILICA FUME, 19% high efficiency water reducing agent, 14% YS chain silicate nano material, 7% trolamine, 26% iron protochloride and 8% latex powder mix by weight percent.
Its preparation method is with embodiment 1.
Claims (5)
1. concrete special anti-corrosion rust-resistance penetration-resistant anticracking compound additive is characterized in that: this compound additive is that 20%～40% SILICA FUME, 16%～24% high efficiency water reducing agent, 10%～20% YS chain silicate nano material, 6%～10% trolamine, 20～40% iron protochloride and 6%～10% latex powder mix by weight percent.
2. a kind of concrete special anti-corrosion rust-resistance penetration-resistant anticracking compound additive as claimed in claim 1, it is characterized in that: said SILICA FUME is that specific surface area is 16000～28000m
2/ kg, chloride ion content≤0.25%.
3. a kind of concrete special anti-corrosion rust-resistance penetration-resistant anticracking compound additive as claimed in claim 1, it is characterized in that: said high efficiency water reducing agent is the powdered naphthalene water reducer.
4. a kind of concrete special anti-corrosion rust-resistance penetration-resistant anticracking compound additive as claimed in claim 1 is characterized in that: said trolamine is a purity greater than 99% trolamine.
5. a kind of concrete special anti-corrosion rust-resistance penetration-resistant anticracking compound additive as claimed in claim 1, it is characterized in that: said latex powder is a redispersable latex powder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102124999A CN102320774B (en) | 2011-07-19 | 2011-07-19 | Anticorrosive, antirust, anti-seepage and anti-cracking composite additive special for concrete |
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| CN2011102124999A CN102320774B (en) | 2011-07-19 | 2011-07-19 | Anticorrosive, antirust, anti-seepage and anti-cracking composite additive special for concrete |
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| CN102320774A true CN102320774A (en) | 2012-01-18 |
| CN102320774B CN102320774B (en) | 2012-11-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478341A (en) * | 2014-12-23 | 2015-04-01 | 苏州万盛混凝土有限公司 | Low-alkali concrete |
| CN104529224A (en) * | 2014-12-23 | 2015-04-22 | 苏州万盛混凝土有限公司 | Concrete modifier |
| CN104529336A (en) * | 2014-12-23 | 2015-04-22 | 苏州万盛混凝土有限公司 | Method for preparing low-alkali concrete |
| CN108017317A (en) * | 2017-12-11 | 2018-05-11 | 福建奇胜环保建材科技有限公司 | A kind of steam-pressing aero-concrete water-proof high-intensity additive |
| CN114751704A (en) * | 2022-05-13 | 2022-07-15 | 中国建筑东北设计研究院有限公司 | Durable polymer mortar for high-strength steel wire cloth reinforced concrete member |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462843A (en) * | 2008-12-17 | 2009-06-24 | 同济大学 | Marine concrete corrosion resistant additive and preparation thereof |
| CN101475334A (en) * | 2008-09-08 | 2009-07-08 | 云南省建筑科学研究院 | Composite concrete antiseptic agent |
| CN102010147A (en) * | 2010-10-25 | 2011-04-13 | 兰州交通大学 | Cracking-resisting compacting agent for concrete |
-
2011
- 2011-07-19 CN CN2011102124999A patent/CN102320774B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475334A (en) * | 2008-09-08 | 2009-07-08 | 云南省建筑科学研究院 | Composite concrete antiseptic agent |
| CN101462843A (en) * | 2008-12-17 | 2009-06-24 | 同济大学 | Marine concrete corrosion resistant additive and preparation thereof |
| CN102010147A (en) * | 2010-10-25 | 2011-04-13 | 兰州交通大学 | Cracking-resisting compacting agent for concrete |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478341A (en) * | 2014-12-23 | 2015-04-01 | 苏州万盛混凝土有限公司 | Low-alkali concrete |
| CN104529224A (en) * | 2014-12-23 | 2015-04-22 | 苏州万盛混凝土有限公司 | Concrete modifier |
| CN104529336A (en) * | 2014-12-23 | 2015-04-22 | 苏州万盛混凝土有限公司 | Method for preparing low-alkali concrete |
| CN108017317A (en) * | 2017-12-11 | 2018-05-11 | 福建奇胜环保建材科技有限公司 | A kind of steam-pressing aero-concrete water-proof high-intensity additive |
| CN114751704A (en) * | 2022-05-13 | 2022-07-15 | 中国建筑东北设计研究院有限公司 | Durable polymer mortar for high-strength steel wire cloth reinforced concrete member |
Also Published As
| Publication number | Publication date |
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| CN102320774B (en) | 2012-11-21 |
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