CN102584087B - Anticorrosive anti-erosion additive for high-belite cement - Google Patents
Anticorrosive anti-erosion additive for high-belite cement Download PDFInfo
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- CN102584087B CN102584087B CN 201210021560 CN201210021560A CN102584087B CN 102584087 B CN102584087 B CN 102584087B CN 201210021560 CN201210021560 CN 201210021560 CN 201210021560 A CN201210021560 A CN 201210021560A CN 102584087 B CN102584087 B CN 102584087B
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- belite cement
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Abstract
The invention discloses an anticorrosive anti-erosion additive for high-belite cement, which is prepared from the following components in weight percentage: 15-22 percent of naphthalene sulfonated formaldehyde condensate, 5-15 percent of tertiary butyl benzoic acid, 2-5 percent of ethyl silicate, 15-25 percent of slag powder, 15-25 percent of coal ash and the balance of water. By adding the anticorrosive anti-erosion additive for the high-belite cement to the high-belite cement, the anticorrosive anti-erosion ability of concrete prepared from the high-belite cement can be enhanced. Meanwhile, the anticorrosive anti-erosion additive for the high-belite cement has a water-reducing function and an air-entraining function and is capable of prolonging the service life of the concrete prepared from the high-belite cement and broadening the application range of the high-belite cement.
Description
Technical field
The present invention relates to a kind of additives for building materials, especially relate to a kind of anticorrosive anti-erosion additive for high-belite cement.
Background technology
At present, the cement that anhydrite is made is Shortcomings aspect anticorrosion anti-erosion, can not satisfy the needs of some special dimension, such as the plant and equipment of sulphuric acid production enterprises, so often need to add wherein Cucumber to strengthen its anticorrosion erosion-resisting characteristics.
at hydraulic structure such as impact-resisting wear-resisting cavitation prevention concrete, the road abrasion-proof concrete, what use in terrace abrasion-proof concrete etc. is all silica flour class impact-resisting wear-resisting additive, it is to replace part of cement to reach anticorrosion erosion-resistant effect to strengthen concrete crushing strength with silica flour, this is for concrete, in the situation that equal hydration heat, compare with common cement concrete, do not have obvious reinforced effects, effect due to silica flour, reduced cement consumption, concrete ultimate compression strength has improved, anticorrosion erosion-resisting characteristics has also improved, but the cement that it is made for anhydrite, its raising is very limited, can not reach satisfied effect.
The firing temperature of high belite cement is low, the quantity discharged of the carbonic acid gas that produces in sintering process, sulfurous gas etc. is low, energy consumption is low, environmental pollution is few, production cost is low, and its intensity, weather resistance are all good than common cement, but high belite cement aspect anticorrosion, anti-erosion and Portland cement almost as broad as long, this directly causes it can not be applied to the occasion that anticorrosion, anti-erosion aspect is had higher requirements.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiencies in the prior art, and a kind of anticorrosive anti-erosion additive for high-belite cement that can improve the anticorrosion erosion-resisting characteristics of high belite cement is provided.
The present invention solve the technical problem the technical scheme that adopts, a kind of anticorrosive anti-erosion additive for high-belite cement, component by following weight percent is formulated: naphthalenesulfonate formaldehyde condensation compound 15-22%, the special fourth 5-15% of phenylformic acid, ethyl silicate 2-5%, slag powders 15-25%, coal ash powder 15-25%, surplus is water.
Preferred weight percent is: naphthalenesulfonate formaldehyde condensation compound 20%, the special fourth 10% of phenylformic acid, ethyl silicate 3%, slag powders 20%, coal ash powder 20%, water 27%.
The preferred naphthalenesulfonic acid-formaldehyde condensate of described naphthalenesulfonate formaldehyde condensation compound.
The preparation method: each solid particulate matter component in filling a prescription adds in liquid material in formula, grinds, and makes slurry.
Using method: additive of the present invention is joined in cement clinker, and addition is the 0.5-5% of cement clinker weight, is preferably 2%.
The present invention's anticorrosive anti-erosion additive for high-belite cement, add among high belite cement, can strengthen the concrete anticorrosion corrosion resistance with this cement production systD, have simultaneously diminishing, air-entraining function, be applicable to various places, such as maritime works's engineering, harmful solonchak medium engineering and the engineering that needs long-term safety to use, can extend the concrete work-ing life of high belite cement production systD, enlarge the range of application of high belite cement.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Each embodiment raw material weight per distribution ratio sees Table 1.
Preparation: each solid particulate matter component in fill a prescription adds in liquid material in formula, and slurry is made in grinding.
Table 1 embodiment 1-5 composition of raw materials (weight percent)
| ? | Naphthalenesulfonic acid-formaldehyde condensate | The special fourth of phenylformic acid | Sodium ethylsiliconate | Slag powders | Coal ash powder | Water |
| Embodiment 1 | 15 | 15 | 3 | 20 | 25 | 22 |
| Embodiment 2 | 22 | 10 | 5 | 25 | 15 | 23 |
| Embodiment 3 | 20 | 5 | 2 | 15 | 20 | 38 |
| Embodiment 4 | 17 | 8 | 4 | 22 | 17 | 32 |
| Embodiment 5 | 20 | 10 | 3 | 20 | 20 | 27 |
The additive that embodiment 1-5 makes all satisfies the standard (seeing the following form 2) of YB/T9231.Be applicable to the place of various occasions, particularly serious corrosion, such as coast defence dykes and dams, flood-prevention work done on rivers dykes and dams etc.
Table 2 embodiment 1-5 additive rust-preventing characteristic reaches affects test-results to concrete performance
Claims (3)
1. an anticorrosive anti-erosion additive for high-belite cement, is characterized in that, and is formulated by the component of following weight percent: naphthalenesulfonate formaldehyde condensation compound 15-22%, the special fourth 5-15% of phenylformic acid, ethyl silicate 2-5%, slag powders 15-25%, coal ash powder 15-25%, surplus is water.
2. anticorrosive anti-erosion additive for high-belite cement according to claim 1, is characterized in that, and is formulated by the component of following weight percent: naphthalenesulfonate formaldehyde condensation compound 20%, the special fourth 10% of phenylformic acid, ethyl silicate 3%, slag powders 20%, coal ash powder 20%, water 27%.
3. anticorrosive anti-erosion additive for high-belite cement according to claim 1 and 2, is characterized in that, described naphthalenesulfonate formaldehyde condensation compound is naphthalenesulfonic acid-formaldehyde condensate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210021560 CN102584087B (en) | 2012-01-31 | 2012-01-31 | Anticorrosive anti-erosion additive for high-belite cement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210021560 CN102584087B (en) | 2012-01-31 | 2012-01-31 | Anticorrosive anti-erosion additive for high-belite cement |
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| CN102584087A CN102584087A (en) | 2012-07-18 |
| CN102584087B true CN102584087B (en) | 2013-06-05 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215138A (en) * | 2008-01-04 | 2008-07-09 | 东南大学 | Slag mixed active powder concrete |
| CN101244921A (en) * | 2008-03-20 | 2008-08-20 | 中国葛洲坝集团股份有限公司 | High-strength borehole anchorage agent |
| CN101337787A (en) * | 2008-08-27 | 2009-01-07 | 南京派尼尔科技实业有限公司 | Concrete corrosion resistant additive for sea construction |
| CN102173637A (en) * | 2011-02-18 | 2011-09-07 | 鞍山市鹏程混凝土外加剂有限公司 | Antiseptic and rust resistant high-performance concrete waterproofer |
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2012
- 2012-01-31 CN CN 201210021560 patent/CN102584087B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215138A (en) * | 2008-01-04 | 2008-07-09 | 东南大学 | Slag mixed active powder concrete |
| CN101244921A (en) * | 2008-03-20 | 2008-08-20 | 中国葛洲坝集团股份有限公司 | High-strength borehole anchorage agent |
| CN101337787A (en) * | 2008-08-27 | 2009-01-07 | 南京派尼尔科技实业有限公司 | Concrete corrosion resistant additive for sea construction |
| CN102173637A (en) * | 2011-02-18 | 2011-09-07 | 鞍山市鹏程混凝土外加剂有限公司 | Antiseptic and rust resistant high-performance concrete waterproofer |
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| CN102584087A (en) | 2012-07-18 |
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Effective date of registration: 20160902 Address after: An Industrial Park Economic Development Zone, Changde City, Hunan province Linli County 415200 Patentee after: Hunan Fu Xiang new type building material Co., Ltd. Address before: 410005, 12 floor, Haidong mansion, Furong Road, Changsha, Hunan Patentee before: Liu Liwen |