CN102603225B - Concrete pumping antifreezing agent with adjustable performances - Google Patents
Concrete pumping antifreezing agent with adjustable performances Download PDFInfo
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- CN102603225B CN102603225B CN201210076213.3A CN201210076213A CN102603225B CN 102603225 B CN102603225 B CN 102603225B CN 201210076213 A CN201210076213 A CN 201210076213A CN 102603225 B CN102603225 B CN 102603225B
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Abstract
The invention relates to a concrete pumping antifreezing agent with adjustable performances, belonging to the field of building materials. The concrete pumping antifreezing agent comprises the following materials by weight percent: 28% -42% of water reducing agent, 0.3%-0.7% of air entraining agent, 0.05%-0.07% of fluidizing reagent, 1.5%-2.5% of reinforcing agent and 2.0%-3.0% of antifreezing agent, 1.5%-5.0% of slump loss inhibitor and 45%-65% of water, and the concrete pumping antifreezing agent is a novel pumping antifreezing agent and does not contain any chloride. The concrete pumping antifreezing agent is simple in production process, does not contain alkali and chlorine, and cannot corrode a steel bar. The concrete pumping antifreezing agent has the advantages that the peaceability of concrete is improved substantially, the volume is stable, the water-reducing rate is high, the anti-freezing performance is high, the early-strength performance is obvious, the increasing value of the later-stage concrete strength is high, the adaptability is good, and the like, and has good pumpability in the construction. The concrete pumping antifreezing agent is low in cost, good in performance and has good economical benefits and social benefits.
Description
Technical field
The present invention relates to the adjustable concrete pumping frostproofer of a kind of performance, be applicable to use in commerical ready-mixed concrete for winter construction, pump concrete, belong to building material field.
Background technology
In large-scale construction work, not only requiring has modern operating technique and construction means, concrete has also been proposed the technical property requirements of several functions simultaneously.For example, the commerical ready-mixed concrete of winter construction, the pump concrete of Highrise buildings, for keeping its good serviceability, need concrete to have resistance to frost, as good in large fluidised form, slump retentivity, early strong, reinforced effects is good.Especially early strong intensity, can shorten the concrete insulated curing time, reduced costs.And in different environmental engineerings, according to different function needs, winter construction requires concrete to have early the requirements such as strong or each age strength, and the raising of all these concrete technical features and improvement, all realize by mixing concrete pumping frostproofer.
Domestic and international existing pumping frostproofer kind is more, and what consumption was more is villaumite resistance rust type pumping frostproofer.This pumping frostproofer greatest drawback is to be used for prestressed reinforced concrete engineering.With the compound frostproofer of naphthalene water reducer, sulfamate water reducer and other antifreeze component, water-reducing rate be not very high, volume stability is poor.The pumping agent of single component, though pumping is effective, volume stability, resistance to frost, early strong poor performance.
Summary of the invention
The technical problem that the present invention solves is: prevent that concrete from enduring cold in early days, early-age shrinkage, improve concrete pumpability, improve early age strength of concrete and later strength, production technique is simple, and cost is lower.
Technical solution of the present invention is:
The adjustable concrete pumping frostproofer of a kind of performance, comprises the components in weight percent of following material: water reducer 28%-42%; Air entrapment agent 0.3%-0.7%; Liquid agent 0.05%-0.07%; Toughener 1.5%-2.5%; Frostproofer 2.0%-3.0%; Slump-loss inhibitor 1.5%-5.0%; Water 45%-65%.
Described water reducer is naphthalenesulfonate formaldehyde condensation compound water reducer, sulfamate water reducer, aliphatic water reducing agent or polycarboxylate water-reducer or two or more combination.
Described air entrapment agent is triterpenoid saponin, sodium lauryl sulphate or Sodium dodecylbenzene sulfonate.
Described liquid agent is dibutylester or tri butyl ester.
Described toughener is water glass or Sulfothiorine.
Described frostproofer is methyl alcohol or ethylene glycol.
Described loss inhibitor is Sunmorl N 60S, citric acid or tripoly phosphate sodium STPP.
This concrete pumping frostproofer
Pumping frostproofer of the present invention, water-reducing rate is high, morning is strong, good freezing protection effect, and volume is lower, material cost is low, has good economic benefit and social benefit.And can regulate raw-material mixing ratio according to the service requirements of different user, reach different functional requirements.As: diminishing requires, require antifreeze morning by force, different requirement time of coagulation, and alkali-free, chloride ion-containing not, to the effect of reinforcing bar non-corroding.
Invention effect
The present invention is pumping frostproofer, through various performance tests and test, has following features and function:
1) the present invention is compared with other type frostproofer, and water-reducing rate is high, multiple functional, good combination property, early strong reinforced effects are good.Product of the present invention mixes after concrete, can make concrete water-reducing ratio reach 25%-35%, and pumpability is good.-7d compressive strength rate 10%-20%, 28d compressive strength rate 100%-120%, 28d shrinkage ratio is less than 120%, to the effect of reinforcing bar non-corroding.
2) pumping frostproofer production technique of the present invention is simple, material cost is low, in concrete, use winter and have the advantages that volume is low, also there is effective, the large fluidised form of early-strength anti-freezing, pump-conveying property is high, air content is moderate, improve mechanical performance of concrete, little loss of slump comprehensively, improve concrete workability.The concrete surface shrinkage crack of moulding is few, can comprehensively improve concrete impermeability, frost resistance, carbonization resistance and endurance quality etc.
Embodiment
Embodiment 1:
The present invention includes: by naphthalenesulfonate formaldehyde condensation compound water reducer, sulfamate water reducer, sodium lauryl sulphate air entrapment agent, tri butyl ester liquid agent, water glass toughener, methyl alcohol frostproofer, sugared sodium slump-loss inhibitor.
The proportioning of various materials is by weight percentage:
The pumping frostproofer of the present embodiment gained mixes in concrete and uses, and volume accounts for 2.0% of gelling material, in its performance table 1, provides.
The present embodiment, due to the compound use of water reducer, frostproofer, toughener, slump-loss inhibitor, makes concrete water-reducing ratio higher, antifreeze, early potent fruit is better, and this volume is constructed in the winter time and is mainly used in the following concrete pumping of C35.
Embodiment 2:
The present invention includes: polycarboxylate water-reducer, triterpenoid saponin air entrapment agent, tri butyl ester liquid agent, Sulfothiorine toughener, ethylene glycol antifreeze, sugared sodium slump-loss inhibitor, citric acid retardant.
The proportioning of various materials is by weight percentage:
The pumping frostproofer of the present embodiment gained mixes in concrete and uses volume to account for 2% of gelling material, and its performance provides in table 1.The present embodiment, because the best complex of high-performance water reducing agent, high-performance frostproofer, toughener, slump-loss inhibitor is used, makes the highest, antifreeze, the early strong enhancement function of concrete water-reducing ratio better.Winter construction is mainly used in configuring the pumping construction of C40-C60 high-strength concrete, and now material cost is lower.
The performance of the pumping frostproofer of table 1 the invention process gained
Note: specified temperature is-15 DEG C
Claims (1)
1. the adjustable concrete pumping frostproofer of performance, it is characterized in that, comprise the components in weight percent of following material: naphthalene sulphonate formaldehyde water reducer 22%, sulfamate water reducer 12%, sodium lauryl sulphate air entrapment agent 0.5%, tri butyl ester liquid agent 0.05%, water glass toughener 2.0%, methyl alcohol frostproofer 2.2%, sugared sodium slump-loss inhibitor 1.5%, water 59.75%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210076213.3A CN102603225B (en) | 2012-03-14 | 2012-03-14 | Concrete pumping antifreezing agent with adjustable performances |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210076213.3A CN102603225B (en) | 2012-03-14 | 2012-03-14 | Concrete pumping antifreezing agent with adjustable performances |
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| CN102603225A CN102603225A (en) | 2012-07-25 |
| CN102603225B true CN102603225B (en) | 2014-06-18 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815910B (en) * | 2012-08-05 | 2014-09-10 | 包头市安顺新型建筑材料有限责任公司 | Cement glue with adjustable performances |
| CN102875052B (en) * | 2012-10-23 | 2014-04-16 | 天津市建筑科学研究院有限公司 | Compound admixture for heat curing-free concrete in winter construction |
| CN103304179A (en) * | 2013-06-26 | 2013-09-18 | 韩越 | Concrete composite liquid anti-freezing pumping agent |
| CN103755214B (en) * | 2014-01-17 | 2015-07-15 | 东海建设集团有限公司 | Concrete antifreezer |
| CN105314913B (en) * | 2015-10-30 | 2017-08-25 | 胜利油田营海实业集团有限公司 | It is a kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent |
| CN106396458A (en) * | 2016-09-28 | 2017-02-15 | 四会市恒星智能科技有限公司 | Highly efficient composite concrete anti-freezing agent and preparation method thereof |
| CN106810100B (en) * | 2016-12-23 | 2019-11-08 | 河南奥思达新材料有限公司 | A kind of anti-freeze type water-reducing agent and its preparation process |
| CN108658504A (en) * | 2018-05-02 | 2018-10-16 | 芜湖恒固混凝土材料有限公司 | A kind of compound antifreezer of concrete for salvaging |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060463A (en) * | 2010-12-03 | 2011-05-18 | 山东宏艺科技股份有限公司 | Low-cost concrete antifreezing pumping aid and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060463A (en) * | 2010-12-03 | 2011-05-18 | 山东宏艺科技股份有限公司 | Low-cost concrete antifreezing pumping aid and preparation method thereof |
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Effective date of registration: 20170414 Address after: 014010 the Inner Mongolia Autonomous Region Baotou Kundulun District No. 14 Qingnian Road neighborhood Steel Hospital Building Research Institute Patentee after: BAOTOU ANSHUN NEW BUILDING MATERIALS CO., LTD. Address before: 014010 the Inner Mongolia Autonomous Region Kundulun District of Baotou City No. 80 Arden Street Patentee before: University of Science and Technology of Inner Mongolia |
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