CN107586056A - Method for preparing expansion agent used in a kind of slag micropowder production - Google Patents
Method for preparing expansion agent used in a kind of slag micropowder production Download PDFInfo
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- CN107586056A CN107586056A CN201710792101.0A CN201710792101A CN107586056A CN 107586056 A CN107586056 A CN 107586056A CN 201710792101 A CN201710792101 A CN 201710792101A CN 107586056 A CN107586056 A CN 107586056A
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Abstract
Method for preparing expansion agent used in a kind of production of slag micropowder, is concretely comprised the following steps, and will be added sodium hydroxide and adjust pH=8 9 in 120 130 parts of melamine and 40 50 parts of addition reactors of monoaldehyde, is reacted 90 100 minutes under the conditions of 70 80 DEG C of temperature；Precipitated；Taking precipitate, dry, in dry process, spray solid reinforcing particle, add again in reactor；Take simultaneously in 50 60 parts of melamine and 20 30 parts of addition reactors of monoaldehyde, add sodium hydroxide and adjust pH=8 9, reacted 20 30 minutes under the conditions of 70 80 DEG C of temperature；Add reactant, calcium sulphoaluminate and chrome green after completion of the reaction according to weight ratio 15:4:1 inserts powder mixer, stirs 10min, obtains swelling agent.The swelling agent, without sodium salt, it should not can cause alkali-aggregate reaction in concrete.And durability is good, expansion character is stable, and intensity continuous rises, and produces certain prestressing force, and to help Shrinkage Cracking of Concrete, while solid reinforcing particle is controlled, into after brick, intensity is greatly improved.
Description
Technical field：
The present invention relates to method for preparing expansion agent used in a kind of production of slag micropowder of building material field.
Background technology：
Building engineering construction efficiency can be improved using cement and concrete product, after concrete cast, if hot climate,
It is air-dried, is conserved not in time, the evaporation of concrete reclaimed water branch is too fast, forms dehydrating phenomena, can make to have formed gelinite
Cement granules can not abundant aquation, it is impossible to be converted into stable crystallization, lack enough cohesive forces, so as to can be in concrete table
There is sheet in face or powdery comes off, in addition, when concrete not yet possesses enough intensity, the too early evaporation of moisture can also produce
, there is cup shake in larger contraction distortion, influences the durability and globality of concrete.Therefore increase in concrete strength
Phase, in order to obtain enough intensity within a short period of time and accelerate mould turnover, while ensure the intensity of concrete, durability etc.
Technical indicator, generally it is conserved.Traditional concrete curing method has natural curing, atmospheric steam curing and high temperature high
Pressure maintenance etc..It is longer the time required to natural curing, and quality is difficult to ensure that；Scientific and reasonable steam curing system in atmospheric steam curing
It is to produce one of important prerequisite of high quality cement concrete product with technique, maintaining process, which is generally divided into, quiet to stop, heats up, be permanent
Temperature, 4 stages of cooling, in order to prevent product from causing concrete to produce crack because internal-external temperature difference is excessive or thermostat temperature is too high,
Must strictly control it is steam-cured during heating-cooling speed and thermostat temperature etc., process very complicated and require strict, condition control
Make and bad be easy for causing concrete product not reach preparation technology requirement；And HTHP curing condition requires higher, lead to
Often critical shortage, its exacting terms limit its application to the various resources in many construction places.
The defects of conventional method, is increasingly difficult in adapt to modern construction needs, and therefore, people investigated concrete and support
The new material and technique of shield, granulated blast-furnace slag are blast-furnace cinders by a kind of with very high potential obtained from the chilling of water
The vitreous structure material of activity, slag micropowder, slag fibre, builds the road in slag cements, concrete admixture in recent years
Filler etc. obtains very big utilization, and the enhancing of concrete and rebar cohesive force, late strength of concrete mixed with slag micropowder carry
The high, good characteristics such as prevent shrinkage cracking, concrete basicity low, are the stocks for preparing high performance concrete, 2011 years
China's iron and steel output reaches more than 68.3 hundred million tons, can discharge nearly 2,000,000,000 tons of granulated blast-furnace slag, the money of granulated blast-furnace slag
Sourceization can also greatly reduce occupation of land and environmental pollution using the energy is saved while reducing production cost, produce preferably warp
Benefit of helping and social benefit.Although the research of slag micropowder improves the slag micropowder performance such as intensity, workability, cohesive force,
Never angularly improved from the resources conservation such as steam curing time and condition, the input of high-tension apparatus, production efficiency.How
Further improve the lateral reactivity of slag micropowder, increase its feature, to expand its application field critically important as one in industry
Research topic.
The content of the invention：
The technical problems to be solved by the invention are the defects of part takes prior art, there is provided in a kind of slag micropowder production
Method for preparing expansion agent used.
The technical problems to be solved by the invention are realized using following technical scheme.
Method for preparing expansion agent used in a kind of slag micropowder production, it is characterised in that：Concretely comprise the following steps,
Melamine 120-130 parts and monoaldehyde 40-50 parts are added in reactor, sodium hydroxide is added and adjusts pH=8-9,
90-100 minutes are reacted under the conditions of 70-80 DEG C of temperature；
Add triethanolamine 1-5 parts, triisopropanolamine 1-3 parts, hydrophobic type re-dispersible glue powder 4-6 parts, nanometer polytetrafluoro
Ethene 5-8 parts, desulfurated plaster 8-10 parts, barium laurate 1-3 parts, decanedioic acid 3-5 parts are with the reactant of 100 parts of water, adding
200-230 part water, stirring, after 10 minutes, is precipitated；
Taking precipitate, dry, in dry process, spray solid reinforcing particle, add again in reactor；
Take melamine 50-60 parts and monoaldehyde 20-30 parts to add in reactor simultaneously, add sodium hydroxide and adjust pH=8-
9,20-30 minutes are reacted under the conditions of 70-80 DEG C of temperature；
Add reactant, calcium sulphoaluminate and chrome green after completion of the reaction according to weight ratio 15:4:1, which inserts powder, mixes
Conjunction machine, 10min is stirred, obtains swelling agent.
Further technology：Described solid reinforcing particle includes：Epoxychloropropane 12-18 parts, absolute ethyl alcohol 7-15 parts, first
Base acrylic acid 13-16 parts, xylitol 15-20 parts, OPE 14-18 parts, ethyl silicon oil 12-17 parts, metallic particles 13-
15 parts, paraffin 15-20 parts, silica flour 70-80 parts, compoiste fermented liquid 20-40 parts.
Further technology：Described solid reinforcing particle includes：12 parts of epoxychloropropane, 7 parts of absolute ethyl alcohol, metering system
13 parts of acid, 15 parts of xylitol, 14 parts of OPE, 12 parts of ethyl silicon oil, 13 parts of metallic particles, 15 parts of paraffin, silica flour
70 parts, compoiste fermented 20 parts of liquid.
Further technology：Described solid reinforcing particle includes：18 parts of epoxychloropropane, 15 parts of absolute ethyl alcohol, methyl-prop
16 parts of olefin(e) acid, 20 parts of xylitol, 18 parts of OPE, 17 parts of ethyl silicon oil, 15 parts of metallic particles, 20 parts of paraffin, quartz
80 parts of powder, compoiste fermented 40 parts of liquid.
Described solid reinforcing particle preparation method is,
The mixing of epoxychloropropane and 3 times of amount water, adds surfactant, is heated to dissolving under stirring；Then, second is added dropwise
Base silicone oil, then be added dropwise by the dilute acid soln that organic acid and inorganic acid form to pH=9, make the transparent collosol state of solution；
Absolute ethyl alcohol, methacrylic acid and xylitol are sequentially added, continues to stir more than 30min, stirring so that colloidal sol shape
State solidifies rapidly, and solidfied material extruding is become to expect that cake is discharged under roll squeezer, the material cake discharged under roll squeezer is sent into and is classified
Broken up in machine, bentonite 10-20 parts are added in breakdown process, be sent into roll squeezer and carry out pre- grinding, be sent into fermentation vat；
Silica flour is expected on cake with being sprayed in fermentation vat, then sprays compoiste fermented liquid, is fermented, at 41~55 DEG C
Lower fermentation, after the completion of fermentation, obtains material issuing；For Temperature fall to less than 40 DEG C, sealing and fermenting obtains particle；
By particle mixing ethyl silicon oil and metallic particles, OPE, the melting liquid of paraffin are added, is stirred continuously,
Add extruding to become to expect that cake is discharged under roll squeezer, finally, break up, the filtering of 400 mesh, obtain solid reinforcing particle.
Beneficial effect of the present invention：The swelling agent, without sodium salt, it should not can cause slag micropowder alkali-aggregate reaction.It is and durable
Property it is good, expansion character is stable, and intensity continuous rises, and produces certain prestressing force, to help control Shrinkage Cracking of Concrete, simultaneously
Solid reinforcing particle meets water jelly, and effectively bonding, after cooling, solidifies, the scattered of slag micropowder obtains again between each other
Improve, between degree of adhesion effectively lifted, meanwhile, internal metallic particles so that into after brick, intensity obtains slag micropowder
To great lifting；
In summary, such a high activity slag micropowder, while the combination property of concrete is improved, reduction production is reached
Cost, the purpose of energy-saving and emission-reduction, once being widely used in the production of concrete and cement products, it will bring good warp
Help benefit and social benefit, meanwhile, by rubber powder infiltration in micro mist, the later stage it is not non-burning brick, after meeting water, strongly adherent thing
Material, fragment of brick bulk strength obtains bigger lifting, while the performance that prevents water penetration is strengthened.
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Specific embodiment 1：
Method for preparing expansion agent used in a kind of slag micropowder production, by melamine 120-130 parts and monoaldehyde 40-50
In part addition reactor, add sodium hydroxide and adjust pH=8-9, react 90-100 minutes under the conditions of 70-80 DEG C of temperature；
Add 1 part of triethanolamine, 1 part of triisopropanolamine, 4 parts of hydrophobic type re-dispersible glue powder, nanometer polytetrafluoroethylcomposite 5
In part, 3 parts of 8 parts of desulfurated plaster, 1 part of barium laurate, decanedioic acid reactants with 100 parts of water, 200 parts of water are added, are stirred, 10
After minute, precipitated；
Taking precipitate, dry, in dry process, spray solid reinforcing particle, add again in reactor；
Take simultaneously in 50 parts of melamine and 20 parts of addition reactors of monoaldehyde, add sodium hydroxide and adjust pH=8-9, in temperature
20-30 minutes are reacted under the conditions of 70-80 DEG C of degree；
Add reactant, calcium sulphoaluminate and chrome green after completion of the reaction according to weight ratio 15:4:1, which inserts powder, mixes
Conjunction machine, 10min is stirred, obtains swelling agent.
Solid reinforcing particle includes：12 parts of epoxychloropropane, 7 parts of absolute ethyl alcohol, 13 parts of methacrylic acid, xylitol 15
Part, 14 parts of OPE, 12 parts of ethyl silicon oil, 13 parts of metallic particles, 15 parts of paraffin, 70 parts of silica flour, compoiste fermented liquid
20 parts.
Solid reinforcing particle preparation method is,
The mixing of epoxychloropropane and 3 times of amount water, adds surfactant, is heated to dissolving under stirring；Then, second is added dropwise
Base silicone oil, then be added dropwise by the dilute acid soln that organic acid and inorganic acid form to pH=9, make the transparent collosol state of solution；
Absolute ethyl alcohol, methacrylic acid and xylitol are sequentially added, continues to stir more than 30min, stirring so that colloidal sol shape
State solidifies rapidly, and solidfied material extruding is become to expect that cake is discharged under roll squeezer, the material cake discharged under roll squeezer is sent into and is classified
Broken up in machine, bentonite 10-20 parts are added in breakdown process, be sent into roll squeezer and carry out pre- grinding, be sent into fermentation vat；
Silica flour is expected on cake with being sprayed in fermentation vat, then sprays compoiste fermented liquid, is fermented, at 41~55 DEG C
Lower fermentation, after the completion of fermentation, obtains material issuing；For Temperature fall to less than 40 DEG C, sealing and fermenting obtains particle；
By particle mixing ethyl silicon oil and metallic particles, OPE, the melting liquid of paraffin are added, is stirred continuously,
Add extruding to become to expect that cake is discharged under roll squeezer, finally, break up, the filtering of 400 mesh, obtain solid reinforcing particle.
By the existing slag micropowder of Experimental Comparison, apply to the production of fragment of brick, produce 100 pieces of bricks, randomly select one piece,
Contrast is as follows：
From data above, after the improved swelling agent of this law, the fragment of brick of production, intensity is big, and seepage of water is low, and cost also has
Reduced, natural cooling setting rate is faster, more efficient.
Embodiment 2：Method for preparing expansion agent used in a kind of slag micropowder production, by 130 parts of melamine and monoaldehyde
In 50 parts of addition reactors, add sodium hydroxide and adjust pH=8-9,90-100 minutes are reacted under the conditions of 70-80 DEG C of temperature；
Add 5 parts of triethanolamine, 3 parts of triisopropanolamine, 6 parts of hydrophobic type re-dispersible glue powder, nanometer polytetrafluoroethylcomposite 8
Part, 10 parts of desulfurated plaster, 3 parts of barium laurate, decanedioic acid 5 are with the reactant of 100 parts of water of part, adding 230 parts of water, stirring,
After 10 minutes, precipitated；
Taking precipitate, dry, in dry process, spray solid reinforcing particle, add again in reactor；
Take simultaneously in 60 parts of melamine and 30 parts of addition reactors of monoaldehyde, add sodium hydroxide and adjust pH=8-9, in temperature
20-30 minutes are reacted under the conditions of 70-80 DEG C of degree；
Add reactant, calcium sulphoaluminate and chrome green after completion of the reaction according to weight ratio 15:4:1, which inserts powder, mixes
Conjunction machine, 10min is stirred, obtains swelling agent.
Solid reinforcing particle includes：18 parts of epoxychloropropane, 15 parts of absolute ethyl alcohol, 16 parts of methacrylic acid, xylitol 20
Part, 18 parts of OPE, 17 parts of ethyl silicon oil, 15 parts of metallic particles, 20 parts of paraffin, 80 parts of silica flour, compoiste fermented liquid
40 parts.
Solid reinforcing particle preparation method is,
The mixing of epoxychloropropane and 3 times of amount water, adds surfactant, is heated to dissolving under stirring；Then, second is added dropwise
Base silicone oil, then be added dropwise by the dilute acid soln that organic acid and inorganic acid form to pH=9, make the transparent collosol state of solution；
Absolute ethyl alcohol, methacrylic acid and xylitol are sequentially added, continues to stir more than 30min, stirring so that colloidal sol shape
State solidifies rapidly, and solidfied material extruding is become to expect that cake is discharged under roll squeezer, the material cake discharged under roll squeezer is sent into and is classified
Broken up in machine, bentonite 10-20 parts are added in breakdown process, be sent into roll squeezer and carry out pre- grinding, be sent into fermentation vat；
Silica flour is expected on cake with being sprayed in fermentation vat, then sprays compoiste fermented liquid, is fermented, at 41~55 DEG C
Lower fermentation, after the completion of fermentation, obtains material issuing；For Temperature fall to less than 40 DEG C, sealing and fermenting obtains particle；
By particle mixing ethyl silicon oil and metallic particles, OPE, the melting liquid of paraffin are added, is stirred continuously,
Add extruding to become to expect that cake is discharged under roll squeezer, finally, break up, the filtering of 400 mesh, obtain solid reinforcing particle.
By the existing slag micropowder of Experimental Comparison, apply to the production of fragment of brick, produce 100 pieces of bricks, randomly select one piece,
Contrast is as follows：
From by data above, after the improved swelling agent of this law, the fragment of brick of production, intensity is big, and seepage of water is low, cost
It has been reduced that, natural cooling setting rate is faster, more efficient.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
- A kind of 1. method for preparing expansion agent used in slag micropowder production, it is characterised in that：Concretely comprise the following steps,Melamine 120-130 parts and monoaldehyde 40-50 parts are added in reactor, sodium hydroxide is added and adjusts pH=8-9, in temperature 90-100 minutes are reacted under the conditions of 70-80 DEG C of degree；Add triethanolamine 1-5 parts, triisopropanolamine 1-3 parts, hydrophobic type re-dispersible glue powder 4-6 parts, nanometer polytetrafluoroethylcomposite 5-8 parts, desulfurated plaster 8-10 parts, barium laurate 1-3 parts, decanedioic acid 3-5 parts are with the reactant of 100 parts of water, adding 200- 230 parts of water, stirring, after 10 minutes, are precipitated；Taking precipitate, dry, in dry process, spray solid reinforcing particle, add again in reactor；Take melamine 50-60 parts and monoaldehyde 20-30 parts to add in reactor simultaneously, add sodium hydroxide and adjust pH=8-9, 20-30 minutes are reacted under the conditions of 70-80 DEG C of temperature；Add reactant, calcium sulphoaluminate and chrome green after completion of the reaction according to weight ratio 15:4:1 inserts powder mixing Machine, 10min is stirred, obtains swelling agent.
- 2. according to method for preparing expansion agent used in a kind of slag micropowder production described in claim 1, it is characterised in that：Institute The solid reinforcing particle stated includes：Epoxychloropropane 12-18 parts, absolute ethyl alcohol 7-15 parts, methacrylic acid 13-16 parts, xylose Alcohol 15-20 parts, OPE 14-18 parts, ethyl silicon oil 12-17 parts, metallic particles 13-15 parts, paraffin 15-20 parts, stone English powder 70-80 parts, compoiste fermented liquid 20-40 parts.
- 3. according to method for preparing expansion agent used in a kind of slag micropowder production described in claim 1, it is characterised in that：Institute The solid reinforcing particle stated includes：12 parts of epoxychloropropane, 7 parts of absolute ethyl alcohol, 13 parts of methacrylic acid, 15 parts of xylitol, oxygen Change 14 parts of Tissuemat E, 12 parts of ethyl silicon oil, 13 parts of metallic particles, 15 parts of paraffin, 70 parts of silica flour, compoiste fermented 20 parts of liquid.
- 4. according to method for preparing expansion agent used in a kind of slag micropowder production described in claim 1, it is characterised in that：Institute The solid reinforcing particle stated includes：18 parts of epoxychloropropane, 15 parts of absolute ethyl alcohol, 16 parts of methacrylic acid, 20 parts of xylitol, oxygen Change 18 parts of Tissuemat E, 17 parts of ethyl silicon oil, 15 parts of metallic particles, 20 parts of paraffin, 80 parts of silica flour, compoiste fermented 40 parts of liquid.
- 5. according to method for preparing expansion agent used in a kind of slag micropowder production described in claim 2, it is characterised in that：Institute The solid reinforcing particle preparation method stated is,The mixing of epoxychloropropane and 3 times of amount water, adds surfactant, is heated to dissolving under stirring；Then, ethyl silicon is added dropwise Oil, then be added dropwise by the dilute acid soln that organic acid and inorganic acid form to pH=9, make the transparent collosol state of solution；Absolute ethyl alcohol, methacrylic acid and xylitol are sequentially added, continues to stir more than 30min, stirring so that collosol state is fast Speed solidification, solidfied material extruding is become to expect that cake is discharged under roll squeezer, the material cake discharged under roll squeezer is sent into grader Broken up, bentonite 10-20 parts are added in breakdown process, be sent into roll squeezer and carry out pre- grinding, be sent into fermentation vat；Silica flour is expected on cake with being sprayed in fermentation vat, then sprays compoiste fermented liquid, is fermented, is issued at 41~55 DEG C Ferment, after the completion of fermentation, obtain material issuing；For Temperature fall to less than 40 DEG C, sealing and fermenting obtains particle；By particle mixing ethyl silicon oil and metallic particles, OPE, the melting liquid of paraffin are added, is stirred continuously, then added Enter extruding to become to expect that cake is discharged under roll squeezer, finally, break up, the filtering of 400 mesh, obtain solid reinforcing particle.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773083A (en) * | 2022-04-20 | 2022-07-22 | 韶关市顺展新型材料有限公司 | Concrete aerated brick with good durability and preparation method thereof |
| CN116023050A (en) * | 2021-10-25 | 2023-04-28 | 辰溪县宏兴新材料科技有限公司 | Preparation method of slag micropowder |
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| CN102718424A (en) * | 2012-06-26 | 2012-10-10 | 江苏建华管桩有限公司 | High-activity granulated blast furnace slag and preparation method thereof |
| CN102815898A (en) * | 2012-08-17 | 2012-12-12 | 中铁十四局集团有限公司 | Superfine slag powder concrete and preparation method thereof |
| CN105198243A (en) * | 2015-09-15 | 2015-12-30 | 和县浙徽新型材料有限公司 | Water-proof ultra-fine slag powder and preparation method thereof |
| CN106272796A (en) * | 2016-08-18 | 2017-01-04 | 阜南县明强柳编工艺品有限公司 | Old bamboo cane hardening agent and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102718424A (en) * | 2012-06-26 | 2012-10-10 | 江苏建华管桩有限公司 | High-activity granulated blast furnace slag and preparation method thereof |
| CN102815898A (en) * | 2012-08-17 | 2012-12-12 | 中铁十四局集团有限公司 | Superfine slag powder concrete and preparation method thereof |
| CN105198243A (en) * | 2015-09-15 | 2015-12-30 | 和县浙徽新型材料有限公司 | Water-proof ultra-fine slag powder and preparation method thereof |
| CN106272796A (en) * | 2016-08-18 | 2017-01-04 | 阜南县明强柳编工艺品有限公司 | Old bamboo cane hardening agent and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116023050A (en) * | 2021-10-25 | 2023-04-28 | 辰溪县宏兴新材料科技有限公司 | Preparation method of slag micropowder |
| CN114773083A (en) * | 2022-04-20 | 2022-07-22 | 韶关市顺展新型材料有限公司 | Concrete aerated brick with good durability and preparation method thereof |
| CN114773083B (en) * | 2022-04-20 | 2023-02-03 | 韶关市顺展新型材料有限公司 | Concrete aerated brick with good durability and preparation method thereof |
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Application publication date: 20180116 |