CN107352836A - Superpower nucleus of ultra early-strength concrete admixture and preparation method thereof - Google Patents
Superpower nucleus of ultra early-strength concrete admixture and preparation method thereof Download PDFInfo
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- CN107352836A CN107352836A CN201710659285.3A CN201710659285A CN107352836A CN 107352836 A CN107352836 A CN 107352836A CN 201710659285 A CN201710659285 A CN 201710659285A CN 107352836 A CN107352836 A CN 107352836A
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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
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
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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)
Abstract
The invention discloses a kind of superpower nucleus of ultra early-strength concrete admixture, is mixed by stabilizer, dispersant, calcium silicates, triethanolamine, calcium nitrate and water compounding, and its raw material composition is：Stabilizer 0.2~0.5%, dispersant 0.1~0.5%, calcium silicates 8~13%, triethanolamine 5~8%, calcium nitrate 1~10%, surplus are water, total amount 100%；The percentage is mass percent.The good dispersant of chemical stability has been used, the halide ion of etching apparatus has not been contained, can shift to an earlier date hydrated cementitious temperature peak, peak value increase, accelerate hydrated cementitious process, improve hydrated cementitious degree, with regard to the early strength of concrete can be effectively improved under the conditions of natural curing, accelerate mould turnover, improve production efficiency, concrete can be made to realize that non-evaporating speed is supported.
Description
Technical field
The present invention relates to a kind of superpower nucleus of ultra early-strength concrete admixture and preparation method thereof.
Background technology
China is concrete consumption big country, with the development of modern construction engineering, such as big load, large span, large volume, fast
Speed, economical and energy saving and special engineered requirement, higher requirement is it is also proposed to concrete if desired for concrete with higher
Durability, workability, intensity, economy etc..Early strength agent is that one kind can be used for accelerating hydrated cementitious to harden, and is effectively improved mixed
Coagulate the concrete admixture of native early strength.Have in some architectural engineerings and the production of cement concrete product indispensable
Important function, can be architectural engineering bring economic benefit, project benefit, be cement concrete product production improve efficiency
Increase economic benefit.The production of cement concrete product at present is more using the method for steam steam press maintenance and admixture early strength agent come real
Now accelerate the turnover of mould, improve production efficiency.There is workability of concrete reduction in traditional early strength agent, intensity is fallen in use
After contracting, modulus of elasticity the problems such as stagnant, alkali-aggregate reaction, scum.Moreover, the production of cement concrete product at present is more using steaming
The method of vapour steam press maintenance and admixture early strength agent accelerates the turnover of mould to realize, improves production efficiency.Though steam steam press maintenance
The gain in strength of concrete prefabricated element can so be dramatically speeded up but energy consumption is larger is unfavorable for energy-saving and emission-reduction and increases economic efficiency.
Present Global climate warming, under the surging background of emission reduction cry, for developing country, improve efficiency of energy utilization, drop
Low unnecessary energy waste, be relatively preferably, quick result, more practicable reduction mode.Although prior art has
Various functions concrete early strength agent, but because formula composition mostly causes very high cost by main component of water reducer, price is held high
It is expensive, it is not suitable for practical application, and also existing additive is more using the compound containing halide ion, and it is tight to equipment corrosion
Weight.What is more is also added into poisonous and hazardous material in concrete morning persistent erection.Such as：
Chinese patent CN105293974A concrete early strength agents, are made up of sodium sulfocyanate and polycarboxylate water-reducer etc., although having
Early strength function, but its cost is too high, sodium sulfocyanate toxic and volatile.
Chinese patent CN104710128A concrete super instant coagulants, are made up of polycarboxylate water-reducer, alcamines and inorganic salts
Deng composition, although substantial amounts of high efficiency water reducing agent effect is good, cost is too high and is that solid will add water to be dissolved before
The work for causing to add worker during construction again could be used after preparing.
The compound super instant coagulant of Chinese patent CN105293974A concrete.By groups such as sodium sulfocyanate and polycarboxylate water-reducers
Into.The sodium sulfocyanate equally used is poisonous, and the water reducer cost used is very high, and using when be also required to be pre-dissolved it,
Add the workload of construction.
Above-mentioned prior art, all it can possess the problem of more or less.Therefore, it is necessary to develop a kind of efficient, inexpensive, real ring
The concrete super instant coagulant protected and stably can be permanently effective, the early strength of concrete is improved, improve hydrated cementitious degree, it is real
Existing non-evaporating, speed is supported, and reaches the effect of environmental protection and energy saving.
The content of the invention
Purpose：To solve the deficiencies in the prior art, the present invention provides a kind of superpower crystalline substance of ultra early-strength concrete admixture
Core,.
Technical scheme：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of superpower nucleus of ultra early-strength concrete admixture, by stabilizer, dispersant, calcium silicates, triethanolamine, calcium nitrate and
Water compounding mixes, and its raw material composition is：Stabilizer 0.2~0.5%, dispersant 0.1~0.5%, calcium silicates 8~13%, three second
Hydramine 5~8%, calcium nitrate 1~10%, surplus are water, total amount 100%；The percentage is mass percent.
Preferably, the described superpower nucleus of ultra early-strength concrete admixture, it is characterised in that：The stabilizer
For the one or several kinds mixing in hydroxypropyl methyl cellulose, xanthans, sodium carboxymethylcellulose, hydroxyethyl cellulose.
Preferably, the described superpower nucleus of ultra early-strength concrete admixture, it is characterised in that：The dispersant
For phosphoric acid ester dispersant, polyethylene glycol, polyvinylpyrrolidone, wetting dispersing agent OT-75, AEO, nonyl
One or several kinds of mixing in base phenol polyethenoxy ether, anionic polycarboxylate's sodium salt.
Preferably, the described superpower nucleus of ultra early-strength concrete admixture, it is characterised in that：The calcium silicates
For superfine powder calcium nitrate, particle diameter 5-20mm.
Preferably, the described superpower nucleus of ultra early-strength concrete admixture, it is characterised in that its raw material forms
For：0.1% hydroxypropyl methyl cellulose, 0.1% xanthans, 0.1 phosphate ester, 0.1% polyethylene glycol, 10% calcium silicates,
6% triethanolamine, 6.56% calcium nitrate, surplus are water, total amount 100%；The percentage is mass percent.
Preferably, the described superpower nucleus of ultra early-strength concrete admixture, it is characterised in that its raw material forms
For：0.1% hydroxyethyl cellulose, 0.1% carboxymethyl cellulose, 0.1 polyvinylpyrrolidone, 0.1% fatty alcohol polyoxy second
Alkene ether, 10% calcium silicates, 6% triethanolamine, 6.56% calcium nitrate, surplus are water, total amount 100%；The percentage is
Mass percent.
Preferably, the described superpower nucleus of ultra early-strength concrete admixture, it is characterised in that its raw material forms
For：0.1% hydroxypropyl methyl cellulose, 0.1 wetting dispersing agent OT-75,0.1% NPE, 8% silicic acid
Calcium, 7% triethanolamine, 5.66% calcium nitrate, surplus are water, total amount 100%；The percentage is mass percent.
Preferably, the described superpower nucleus of ultra early-strength concrete admixture, it is characterised in that its raw material forms
For：0.1% hydroxypropyl methyl cellulose, 0.1% polyethylene glycol, 0.1% polycarboxylate sodium, 8% calcium silicates, 8% three ethanol
Amine, 5.66% calcium nitrate, surplus are water, total amount 100%；The percentage is mass percent.
Preferably, the described superpower nucleus of ultra early-strength concrete admixture, it is characterised in that its raw material forms
For：0.2% hydroxypropyl methyl cellulose, 0.1% polyethylene glycol, 0.1% polycarboxylate sodium, 11% calcium silicates, 8% three second
Hydramine, 7.55% calcium nitrate, surplus are water, total amount 100%；The percentage is mass percent.
The present invention also provides the preparation method of the described superpower nucleus of ultra early-strength concrete admixture, and its step is：Press
According to formula rate, at a temperature of 0 DEG C, stirred when being added dropwise, by stabilizer, dispersant, calcium silicates, triethanolamine, calcium nitrate point
It is scattered in water, is well mixed, produces.
Preferably, calcium silicon mol ratio is 1.5 in raw material：1.
A kind of superpower nucleus of ultra early-strength concrete admixture provided by the invention and preparation method thereof, to hydrated cementitious
Mechanism, the composition of hydrated product, structure, spatial and temporal distributions and its with the performance such as modern concrete mechanical property, chemical stability it
Between relation set out, the material for filter out and enough excited cement aquations can be provided, improving hydrated cementitious degree and intensity.Addition
Superpower nucleus can be highly dispersed to excited cement aquation after cement surface by the dispersant of polymolecularity energy first.Secondly by
Scattered infiltration, makes the calcium silicates of addition increase hydrated cementitious degree.Hydrated cementitious process can be improved again, improve production effect
Rate, concrete can be made to realize that non-evaporating speed is supported, accelerate mould turnover, it is economical and practical.Realize energy-saving and emission-reduction truly.
Beneficial effect：The superpower nucleus of ultra early-strength concrete admixture provided by the invention, it is advanced it is scattered, stably, it is modified
It is combined Deng physics, chemical technology, additive is prepared using special stabilizers, dispersant, the effective composite synthesis of oxygenation agent
Superpower nucleus method and its volume is low, hydrated cementitious degree is fully improved, improves cement early strength, accelerate mould turnover,
Improve production efficiency.Use the good dispersant of chemical stability, do not contain the halide ion of etching apparatus, its chemical stability
Good, addition content is low, nontoxic pollution-free, can shift to an earlier date hydrated cementitious temperature peak, peak value increase, accelerates hydrated cementitious process, improves
Hydrated cementitious degree, the early strength of concrete just can be effectively improved under the conditions of natural curing, accelerates mould turnover, improves life
Efficiency is produced, concrete can be made to realize that non-evaporating speed is supported.With advantages below：
1）Actual amount is less than common super instant coagulant, and its addition is only the 1.5%-3% of gel material content；
2）Chemical stability is preferable, improves hydrated cementitious degree, with regard to that can effectively improve morning of concrete under the conditions of natural curing
Phase intensity, accelerate mould turnover, improve production efficiency；
3）Concrete can be made to realize that non-evaporating speed is supported, early age strength of concrete is improved 10~15 MPas；
4）Cost is low, non-corrosiveness, "dead", nontoxic, is not belonging to hazardous chemical.
Embodiment
The present invention is illustrated with reference to example：
Embodiment 1：
A kind of superpower nucleus of ultra early-strength concrete admixture, is formulated by weight by following compositions：By 0.1% hydroxypropyl
Methylcellulose, 0.1% xanthans, 0.1 phosphate ester, 0.1% polyethylene glycol add three mouthfuls of round bottoms containing 30% distilled water
After being stirred in flask at 0 DEG C, 10% calcium silicates and 6% triethanolamine are dissolved in 30% distilled water respectively, also had
The distilled water that 6.56% calcium nitrate is dissolved in 10.04% is slowly added dropwise in round-bottomed flask at 0 DEG C, treats all components within 2 hours
After well mixed, superpower nucleus is obtained.
Embodiment 2
A kind of superpower nucleus of ultra early-strength concrete admixture, is formulated by weight by following compositions：By 0.1% ethoxy
Cellulose, 0.1% carboxymethyl cellulose, 0.1 polyvinylpyrrolidone and 0.1% AEO, which add, to be contained
It is respectively that 10% calcium silicates and 6% triethanolamine is molten after being stirred in the three neck round bottom flask of 30% distilled water at 0 DEG C
In 30% distilled water, the distilled water that also 6.56% calcium nitrate is dissolved in 10.04% is slowly added dropwise in round-bottomed flask at 0 DEG C,
After all components are well mixed, superpower nucleus is obtained within 2 hours.
Embodiment 3
A kind of superpower nucleus of ultra early-strength concrete admixture, is formulated by weight by following compositions：By 0.1% hydroxypropyl
Methylcellulose, 0.1 wetting dispersing agent OT-75,0.1% NPE add three mouthfuls containing 30% distilled water
After being stirred in round-bottomed flask at 0 DEG C, 8% calcium silicates and 7% triethanolamine are dissolved in 35% distilled water respectively, also had
The distilled water that 5.66% calcium nitrate is dissolved in 14.04% is slowly added dropwise in round-bottomed flask at 0 DEG C, treats all components within 2 hours
After well mixed, superpower nucleus is obtained.
Embodiment 4
A kind of superpower nucleus of ultra early-strength concrete admixture, is formulated by weight by following compositions：By 0.1% hydroxypropyl
Methylcellulose, 0.1% polyethylene glycol, 0.1% polycarboxylate sodium are added 0 in the three neck round bottom flask containing 30% distilled water
After being stirred at DEG C, 8% calcium silicates and 8% triethanolamine are dissolved in 35% distilled water, also 5.66% nitric acid respectively
The distilled water that calcium is dissolved in 13.14% is slowly added dropwise in round-bottomed flask at 0 DEG C, 2 hours after all components are well mixed,
Obtain superpower nucleus.
Embodiment 5
A kind of superpower nucleus of ultra early-strength concrete admixture, is formulated by weight by following compositions：By 0.2% hydroxypropyl
Methylcellulose, 0.1% polyethylene glycol, 0.1% polycarboxylate sodium are added 0 in the three neck round bottom flask containing 30% distilled water
After being stirred at DEG C, 11% calcium silicates and 8% triethanolamine are dissolved in 30% distilled water, also 7.55% nitric acid respectively
The distilled water that calcium is dissolved in 13.05% is slowly added dropwise in round-bottomed flask at 0 DEG C, 2 hours after all components are well mixed,
Obtain superpower nucleus.
The present invention is disclosed with preferred embodiment above, so it is not intended to limiting the invention, all to use equivalent substitution
Or the technical scheme that equivalent transformation mode is obtained, it is within the scope of the present invention.
Claims (10)
- A kind of 1. superpower nucleus of ultra early-strength concrete admixture, by stabilizer, dispersant, calcium silicates, triethanolamine, calcium nitrate Mixed with water compounding, its raw material composition is：Stabilizer 0.2~0.5%, dispersant 0.1~0.5%, calcium silicates 8~13%, three Monoethanolamine 5~8%, calcium nitrate 1~10%, surplus are water, total amount 100%；The percentage is mass percent.
- 2. the superpower nucleus of ultra early-strength concrete admixture according to claim 1, it is characterised in that：The stabilizer is One or several kinds of mixing in hydroxypropyl methyl cellulose, xanthans, sodium carboxymethylcellulose, hydroxyethyl cellulose.
- 3. the superpower nucleus of ultra early-strength concrete admixture according to claim 1, it is characterised in that：The dispersant is Phosphoric acid ester dispersant, polyethylene glycol, polyvinylpyrrolidone, wetting dispersing agent OT-75, AEO, nonyl One or several kinds of mixing in phenol polyethenoxy ether, anionic polycarboxylate's sodium salt.
- 4. the superpower nucleus of ultra early-strength concrete admixture according to claim 1, it is characterised in that：The calcium silicates is Powder calcium nitrate, particle diameter 5-20mm.
- 5. the superpower nucleus of ultra early-strength concrete admixture according to claim 1, it is characterised in that its raw material forms For：0.1% hydroxypropyl methyl cellulose, 0.1% xanthans, 0.1 phosphate ester, 0.1% polyethylene glycol, 10% calcium silicates, 6% triethanolamine, 6.56% calcium nitrate, surplus are water, total amount 100%；The percentage is mass percent.
- 6. the superpower nucleus of ultra early-strength concrete admixture according to claim 1, it is characterised in that its raw material forms For：0.1% hydroxyethyl cellulose, 0.1% carboxymethyl cellulose, 0.1 polyvinylpyrrolidone, 0.1% fatty alcohol polyoxy second Alkene ether, 10% calcium silicates, 6% triethanolamine, 6.56% calcium nitrate, surplus are water, total amount 100%；The percentage is Mass percent.
- 7. the superpower nucleus of ultra early-strength concrete admixture according to claim 1, it is characterised in that its raw material forms For：0.1% hydroxypropyl methyl cellulose, 0.1 wetting dispersing agent OT-75,0.1% NPE, 8% silicic acid Calcium, 7% triethanolamine, 5.66% calcium nitrate, surplus are water, total amount 100%；The percentage is mass percent.
- 8. the superpower nucleus of ultra early-strength concrete admixture according to claim 1, it is characterised in that its raw material forms For：0.1% hydroxypropyl methyl cellulose, 0.1% polyethylene glycol, 0.1% polycarboxylate sodium, 8% calcium silicates, 8% three ethanol Amine, 5.66% calcium nitrate, surplus are water, total amount 100%；The percentage is mass percent.
- 9. the superpower nucleus of ultra early-strength concrete admixture according to claim 1, it is characterised in that its raw material forms For：0.2% hydroxypropyl methyl cellulose, 0.1% polyethylene glycol, 0.1% polycarboxylate sodium, 11% calcium silicates, 8% three second Hydramine, 7.55% calcium nitrate, surplus are water, total amount 100%；The percentage is mass percent.
- 10. the preparation method of the superpower nucleus of ultra early-strength concrete admixture according to claim any one of 1-9, it is walked Suddenly it is：According to formula rate, at a temperature of 0 DEG C, stirred when being added dropwise, by stabilizer, dispersant, calcium silicates, triethanolamine, nitre Sour calcium is distributed in water, is well mixed, is produced.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249846A (en) * | 2017-12-13 | 2018-07-06 | 镇江建科建设科技有限公司 | A kind of non-evaporating curing concrete prefabricated components and its forming method |
| CN109176851A (en) * | 2018-09-06 | 2019-01-11 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of self-heating insulated curing system for railway concrete prefabricated components |
| CN110304857A (en) * | 2019-04-11 | 2019-10-08 | 武汉理工大学 | A kind of nano cement base nucleus type early strength agent and its preparation method and application |
| CN110330257A (en) * | 2019-04-11 | 2019-10-15 | 武汉理工大学 | A kind of C-S-H gel nanocrystal early strength agent and its preparation method and application |
| CN110698120A (en) * | 2019-10-30 | 2020-01-17 | 广东红墙新材料股份有限公司 | Precast concrete and curing method thereof |
| CN115231851A (en) * | 2022-07-22 | 2022-10-25 | 广西科达新材料集团有限公司 | High-strength concrete early strength agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746848A (en) * | 2016-09-27 | 2017-05-31 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of compound light weight cement early strength agent and preparation method and application |
-
2017
- 2017-08-04 CN CN201710659285.3A patent/CN107352836B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746848A (en) * | 2016-09-27 | 2017-05-31 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | A kind of compound light weight cement early strength agent and preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| 王伟山等: "晶核型早强剂的早强性能与作用机理分析", 《中国化学外加剂及矿物外加剂研究与应用新进展2016年科隆杯优秀论文汇编》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249846A (en) * | 2017-12-13 | 2018-07-06 | 镇江建科建设科技有限公司 | A kind of non-evaporating curing concrete prefabricated components and its forming method |
| CN109176851A (en) * | 2018-09-06 | 2019-01-11 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of self-heating insulated curing system for railway concrete prefabricated components |
| CN109176851B (en) * | 2018-09-06 | 2020-10-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Self-heating heat-preservation maintenance system for railway concrete prefabricated part |
| CN110304857A (en) * | 2019-04-11 | 2019-10-08 | 武汉理工大学 | A kind of nano cement base nucleus type early strength agent and its preparation method and application |
| CN110330257A (en) * | 2019-04-11 | 2019-10-15 | 武汉理工大学 | A kind of C-S-H gel nanocrystal early strength agent and its preparation method and application |
| CN110330257B (en) * | 2019-04-11 | 2021-09-14 | 武汉理工大学 | C-S-H gel nanocrystal core early strength agent and preparation method and application thereof |
| CN110698120A (en) * | 2019-10-30 | 2020-01-17 | 广东红墙新材料股份有限公司 | Precast concrete and curing method thereof |
| CN115231851A (en) * | 2022-07-22 | 2022-10-25 | 广西科达新材料集团有限公司 | High-strength concrete early strength agent and preparation method thereof |
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Denomination of invention: Super crystal nucleus as super early strength type concrete admixture and preparation method of super crystal nucleus Effective date of registration: 20200608 Granted publication date: 20191105 Pledgee: Bank of China Limited Nanjing City Branch Pledgor: NANJING CHANCONS NEW MATERIAL Co.,Ltd. Registration number: Y2020980002854 |
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