CN107021667A - A kind of preparation method of foam concrete foamer - Google Patents

A kind of preparation method of foam concrete foamer Download PDF

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Publication number
CN107021667A
CN107021667A CN201710337098.3A CN201710337098A CN107021667A CN 107021667 A CN107021667 A CN 107021667A CN 201710337098 A CN201710337098 A CN 201710337098A CN 107021667 A CN107021667 A CN 107021667A
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Prior art keywords
foam
foam concrete
soya
parts
water
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CN201710337098.3A
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Chinese (zh)
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吴刚
王维
孙冬
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吴刚
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Priority to CN201710337098.3A priority Critical patent/CN107021667A/en
Publication of CN107021667A publication Critical patent/CN107021667A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • C04B40/0046Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/42Pore formers

Abstract

The invention discloses a kind of preparation method of foam concrete foamer, belong to concrete additive preparing technical field.The present invention takes obtained alkali lignin with alkali carries after stalk first is carried out into steam blasting, alkali lignin has surface-active, therefore, it is possible to bubble, soybean soaking is beaten again soya-bean milk after fermentation is made, make breaks down proteins in soya-bean milk into amino acid, then by alkali lignin, acetaldehyde, amino acid reaction, obtain amino acid type surfactant, carboxyl and imino group in amino acid type surfactant can form stable liquid film with water, increase the stability of foam, amino acid type surfactant has stronger foaming capacity simultaneously, finally again with surfactant, the mixing such as triethanolamine can be prepared by foam concrete foamer, foaming agent foam and foam stability produced by the present invention are preferable, coefficient of foaming is up to 38~42 times, obtained concrete product intensity is high simultaneously, volume stability is preferable.

Description

A kind of preparation method of foam concrete foamer
Technical field
The invention discloses a kind of preparation method of foam concrete foamer, belong to concrete additive technology of preparing neck Domain.
Background technology
At present, materials for wall consumption accounts for more than the 70% of all construction materials under construction, is consumption raw material, the one of the energy The important product of class.With materials for wall reform with the implementation of Building Energy Conservation Policy, the development and application of energy-saving building material by To extensive attention.
Cellular concrete product is as a kind of porous novel light material, with the spy such as good insulation, sound insulation, heat-insulated Different performance, using further extensive in building field.The quality of foam concrete is directly decided by the good of foaming agent foam quality It is bad, it may be said that foaming agent is the technological core of the excellent foam concrete of production performance.Concrete foamer requires the foam produced Fine uniform is wanted, stabilization time is long, do not produce extensive rupture when being added to concrete, can formed after concrete coagulation Even sealed porosity, is thus just able to produce the cellular concrete product for meeting national standard.
At present, conventional foaming agent will mainly include rosin, synthesis class surfactant, protide and compound, pine Fragrant class foaming agent is first generation foaming agent, and it mainly has rosin soap and colophonium pyrolytic polymer etc.;Synthesize class surfactant foaming agent It is second generation foaming agent, this kind of foaming agent is easy to foaming, coefficient of foaming is high;Protide foaming agent is third generation blowing agents, and its is main It is divided into vegetable protein and the class of animal protein two, this kind of foaming agent foam stability is good;Compound foaming agent is forth generation foaming agent, This kind of foaming agent is no longer single component, but is composited by a variety of function ingredients.Although existing foaming agent species is very Many, but foaming agent quality is uneven, the foaminess of these foaming agents is poor, foam stability is bad, while the foam produced The quality problems such as concrete generally existing low strength, water absorption rate are high, the easy hollowing cracking of sand finish, and because raw material sources have Limit, causes production cost higher, therefore exploitation is restricted with application.
The content of the invention
Present invention mainly solves technical problem:For existing concrete foamer foaminess is poor, foam stability is bad There is provided a kind of preparation method of foam concrete foamer for defect.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is:
(1)Weigh 3~4kg stalks it is size-reduced, sieving, obtain sieving, take 1~2kg sievings carry out steam blasting, obtain quick-fried Material after broken, takes the material after 500~600g steam blastings to carry out soda boiling, filtering, obtains filtrate, filtrate is spray-dried, Obtain dried object;
(2)Weigh after 500~600g soya beans and water mixing, after 10~12h of immersion, the soya bean after immersion is taken out and is beaten, is obtained To soya-bean milk, soya-bean milk is prevented to pour into fermentation tank after putting 2~3 days, in 30~40 DEG C of sealing and fermentings
10~12 days, after after fermentation ends, by tunning high-temperature sterilization, centrifuge, obtain upper liquid, by upper liquid with Filtered after the mixing of 200~300mL absolute ethyl alcohols, obtain filter residue;
(3)40~50g dried objects, 15~20g filter residues, 8~12mL acetaldehyde and 300~400mL water are taken, is stirred in 80~90 DEG C of insulations 2~3h of reaction is mixed, after reaction terminates, 100~200mL absolute ethyl alcohols and 100~200mL dichloroethanes is added into product, is stirred Mix and filtered after mixing, obtain filter cake;
(4)Count by weight, take 40~50 parts of filter cakes, 3~5 parts of neopelexes, 6~8 parts of carboxymethyl celluloses Sodium, 1~3 part of triethanolamine and 70~80 parts of water, in 60~70 DEG C of 40~50min of stirring reaction, obtain foam concrete foaming Agent.
Step(1)Described in stalk be maize straw, Sunset Abelmoschus Root stalk and cotton stalk in one or more.
Step(1)Described in steam blasting pressure be 0.8~1.0MPa, temperature be 230~250 DEG C, blasting time For 3~5min.
Step(1)Described in the reagent of soda boiling be that mass fraction is 15% sodium hydroxide solution, the temperature of soda boiling is 120 ~130 DEG C, the time of soda boiling is 2~3h.
Step(2)Described in soya bean and water mass ratio be 1:5.
The beneficial effects of the invention are as follows:
The present invention extracts first from stalk and obtains alkali lignin, because alkali lignin has surface-active, therefore, it is possible to bubble, Fermented after soya bean is beaten again, make the breaks down proteins in soya-bean milk into amino acid, then by alkali lignin, acetaldehyde and amino Acid is reacted, and the carboxyl and methylene obtained in amino acid type surfactant, amino acid type surfactant can be with water shape Into stable liquid film, increase the stability of foam, while amino acid type surfactant has stronger foaming capacity, with surface Activating agent is used in mixed way, and countless separate micro-bubbles, and three ethanol can be internally formed in the foam concrete being made Amine can chelate the metal ion in concrete, improve the early strength of cement.
Embodiment
3~4kg stalks are weighed first be added in pulverizer and crush, cross 80~100 mesh sieves, obtain sieving, take 1~ 2kg sievings are added in steam blasting machine, under the conditions of 0.8~1.0MPa, 230~250 DEG C, and steam heats 3~5min, then Pressure release, sprays into material and receives in kettle, obtain the product after explosion, then take the product after 500~600g explosions to be placed in and fill 2 ~3L mass fractions for 15% sodium hydroxide solution beaker in, beaker is placed in oil bath pan, control oil bath temperature be 120~ 130 DEG C, after 2~3h of Heat preservation, by the material filtering in beaker, filtrate is obtained, filtrate is spray-dried, drying is obtained Thing, then weigh 500~600g soya beans and be added in beaker, it is in mass ratio 1:5 mix soya bean and water, and immersion treatment 10~ 12h, the soya bean after immersion is taken out and is placed in being beaten in soy bean milk making machine, soya-bean milk is obtained, soya-bean milk is placed in beaker, place 2~3 days Afterwards, the material in beaker is poured into fermentation tank, it is 30~40 DEG C to control fermentation jar temperature, and sealing and fermenting 10~12 days is pending Ferment terminates, and the material in fermentation tank is moved into sterilization tank, and sterilize 15~20min under the conditions of temperature is 120~130 DEG C, obtains Material after to sterilizing, then the material after sterilizing is placed in a centrifuge, with 4000~5000r/min rotating speed centrifugal treating 10 ~15min, obtains upper liquid, adds after 200~300mL absolute ethyl alcohols, 3~5min of stirring mixing, stood into upper liquid At night, refilter, obtain filter residue, then take 40~50g dried objects to be added in the three-necked flask with thermometer and reflux, Flask is placed in water-bath, it is 80~90 DEG C to control bath temperature, then 15~20g of addition filter residues, 8~12mL second into flask Aldehyde and 300~400mL water, insulated and stirred react 2~3h, and question response terminates, and 100~200mL absolute ethyl alcohols are added into flask With 100~200mL dichloroethanes, stirring is mixed and filtered after 60~90min, obtains filter cake, finally count by weight, weigh 40 ~50 parts of filter cakes, 3~5 parts of neopelexes, 6~8 parts of sodium carboxymethylcelluloses, 1~3 part of triethanolamine and 70~80 Part water is added in beaker, and beaker is placed in into digital display tests the speed in constant temperature blender with magnetic force, is 60~70 DEG C in temperature, rotating speed is 40~50min of stirring reaction under conditions of 230~260r/min, beaker is taken out, and naturally cools to the material in beaker Room temperature, you can obtain foam concrete foamer.Described stalk is one in maize straw, Sunset Abelmoschus Root stalk and cotton stalk Plant or several.
Example 1
3kg maize straws are weighed first and are added to crushing in pulverizer, are crossed 80 mesh sieves, are obtained sieving, take 1kg sievings to add Into steam blasting machine, under the conditions of 0.8MPa, 230 DEG C, steam heating 3min, then pressure release, spray into material and receive in kettle, obtain Product after to explosion, then takes the product after 500g explosions to be placed in the burning for filling that 2L mass fractions are 15% sodium hydroxide solution In cup, beaker is placed in oil bath pan, it is 120 DEG C control oil bath temperature, after Heat preservation 2h, by the material filtering in beaker, Obtain filtrate, filtrate be spray-dried, obtain dried object, then weigh 500g soya beans being added in beaker, in mass ratio for 1:5 mix soya bean and water, immersion treatment 10h, and the soya bean after immersion is taken out and is placed in being beaten in soy bean milk making machine, soya-bean milk is obtained, Soya-bean milk is placed in beaker, after placing 2 days, the material in beaker is poured into fermentation tank, it is 30 DEG C to control fermentation jar temperature, close Seal ferment 10 days, treats fermentation ends, and the material in fermentation tank is moved into sterilization tank, is sterilized under the conditions of temperature is 120 DEG C 15min, the material after being sterilized, then the material after sterilizing is placed in a centrifuge, with 4000r/min rotating speed centrifugal treating 10min, obtains upper liquid, is added into upper liquid after 200mL absolute ethyl alcohols, stirring mixing 3min, stands overnight, refilter, Filter residue is obtained, then takes 40g dried objects to be added in the three-necked flask with thermometer and reflux, flask is placed in water-bath In pot, it is 80 DEG C to control bath temperature, then addition 15g filter residues, 8mL acetaldehyde and 300mL water into flask, insulated and stirred reaction 2h, question response terminates, and filters, obtains after 100mL absolute ethyl alcohols and 100mL dichloroethanes, stirring mixing 60min are added into flask To filter cake, finally count by weight, weigh 40 parts of filter cakes, 3 parts of neopelexes, 6 parts of sodium carboxymethylcelluloses, 1 Part triethanolamine and 70 parts of water are added in beaker, and beaker is placed in into digital display tests the speed in constant temperature blender with magnetic force, in temperature be 60 DEG C, rotating speed is stirring reaction 40min under conditions of 230r/min, beaker is taken out, and naturally cool to the material in beaker Room temperature, you can obtain foam concrete foamer.
Count by weight first, take 45 parts of Portland cements, 20 parts of flyash, 35 parts of temperature for 40 DEG C water and 1.5 parts of concrete early strength agent SY-5B are added in concrete mixer, are obtained concrete slurry after stirring mixing 2min, then will Foam concrete foamer produced by the present invention is added in concrete slurry, and it is concrete slurry quality to control foaming agent addition 1%, it is to be added after the completion of, continue stir mixing 1min, obtain foam concrete slurry, then foam concrete slurry is uniformly noted Enter in concrete-pouring template, stand foaming shaping, it is to be foamed after the completion of, form removal simultaneously conserves 18h, you can foam coagulation Earth building blocks.After testing, foam concrete foamer produced by the present invention has preferable foaminess and foam stability, and coefficient of foaming can Up to 38 times, the foam stabilization time is 9.2h, and the foam stabilizing time extends 1.5h compared with conventional foam concrete foamer, while the bubble being made Foam concrete dry density is 800kg/m3, 28 days compression strength is up to 9.3MPa, and compression strength is mixed compared with foam is made using foaming agent Solidifying soil improves 1.2MPa.
Example 2
3kg Sunset Abelmoschus Root stalks are weighed first and are added to crushing in pulverizer, are crossed 90 mesh sieves, are obtained sieving, take 1kg sievings to add Enter into steam blasting machine, under the conditions of 0.9MPa, 240 DEG C, steam heating 4min, then pressure release, spray into material and receive in kettle, The product after explosion is obtained, then takes the product after 550g explosions to be placed in and fills 2L mass fractions for 15% sodium hydroxide solution In beaker, beaker is placed in oil bath pan, it is 125 to control oil bath temperature, after Heat preservation 2h, by the material filtering in beaker, Obtain filtrate, filtrate be spray-dried, obtain dried object, then weigh 550g soya beans being added in beaker, in mass ratio for 1:5 mix soya bean and water, immersion treatment 11h, and the soya bean after immersion is taken out and is placed in being beaten in soy bean milk making machine, soya-bean milk is obtained, Soya-bean milk is placed in beaker, after placing 2 days, the material in beaker is poured into fermentation tank, it is 35 DEG C to control fermentation jar temperature, close Seal ferment 11 days, treats fermentation ends, and the material in fermentation tank is moved into sterilization tank, is sterilized under the conditions of temperature is 125 DEG C 18min, the material after being sterilized, then the material after sterilizing is placed in a centrifuge, with 4500r/min rotating speed centrifugal treating 13min, obtains upper liquid, is added into upper liquid after 250mL absolute ethyl alcohols, stirring mixing 4min, stands overnight, refilter, Filter residue is obtained, then takes 45g dried objects to be added in the three-necked flask with thermometer and reflux, flask is placed in water-bath In pot, it is 85 DEG C to control bath temperature, then addition 18g filter residues, 10mL acetaldehyde and 350mL water into flask, insulated and stirred reaction 2h, question response terminates, and filters, obtains after 150mL absolute ethyl alcohols and 150mL dichloroethanes, stirring mixing 75min are added into flask To filter cake, finally count by weight, weigh 45 parts of filter cakes, 4 parts of neopelexes, 7 parts of sodium carboxymethylcelluloses, 2 Part triethanolamine and 75 parts of water are added in beaker, and beaker is placed in into digital display tests the speed in constant temperature blender with magnetic force, in temperature be 65 DEG C, rotating speed is stirring reaction 45min under conditions of 245r/min, beaker is taken out, and naturally cool to the material in beaker Room temperature, you can obtain foam concrete foamer.
Count by weight first, take 53 parts of Portland cements, 25 parts of flyash, 38 parts of temperature for 50 DEG C water and 1.8 parts of concrete early strength agent SY-5B are added in concrete mixer, are obtained concrete slurry after stirring mixing 2min, then will Foam concrete foamer produced by the present invention is added in concrete slurry, and it is concrete slurry quality to control foaming agent addition 1%, it is to be added after the completion of, continue stir mixing 2min, obtain foam concrete slurry, then foam concrete slurry is uniformly noted Enter in concrete-pouring template, stand foaming shaping, it is to be foamed after the completion of, form removal simultaneously conserves 21h, you can foam coagulation Earth building blocks.After testing, foam concrete foamer produced by the present invention has preferable foaminess and foam stability, and coefficient of foaming can Up to 40 times, the foam stabilization time is 9.5h, and the foam stabilizing time extends 1.9h compared with conventional foam concrete foamer, while the bubble being made Foam concrete dry density is 830kg/m3, 28 days compression strength is up to 9.6MPa, and compression strength is mixed compared with foam is made using foaming agent Solidifying soil improves 1.7MPa.
Example 3
4kg cotton stalks are weighed first and are added to crushing in pulverizer, are crossed 100 mesh sieves, are obtained sieving, take 2kg sievings to add Enter into steam blasting machine, under the conditions of 1.0MPa, 250 DEG C, steam heating 5min, then pressure release, spray into material and receive in kettle, The product after explosion is obtained, then takes the product after 600g explosions to be placed in and fills 3L mass fractions for 15% sodium hydroxide solution In beaker, beaker is placed in oil bath pan, it is 130 DEG C to control oil bath temperature, after Heat preservation 3h, by the material mistake in beaker Filter, obtains filtrate, filtrate is spray-dried, and obtains dried object, then weigh 600g soya beans being added in beaker, in mass ratio For 1:5 mix soya bean and water, immersion treatment 12h, and the soya bean after immersion is taken out and is placed in being beaten in soy bean milk making machine, beans are obtained Slurry, soya-bean milk is placed in beaker, and after placing 3 days, the material in beaker is poured into fermentation tank, and it is 40 to control fermentation jar temperature DEG C, sealing and fermenting 12 days treats fermentation ends, and the material in fermentation tank is moved into sterilization tank, is gone out under the conditions of temperature is 130 DEG C Bacterium 20min, the material after being sterilized, then the material after sterilizing is placed in a centrifuge, at 5000r/min rotating speed centrifugation 15min is managed, upper liquid is obtained, adds after 300mL absolute ethyl alcohols, stirring mixing 5min, stands overnight into upper liquid, after Filter, obtains filter residue, then takes 50g dried objects to be added in the three-necked flask with thermometer and reflux, flask is placed in In water-bath, it is 90 DEG C to control bath temperature, then addition 20g filter residues, 12mL acetaldehyde and 400mL water, insulated and stirred into flask 3h is reacted, question response terminates, mistake after 200mL absolute ethyl alcohols and 200mL dichloroethanes, stirring mixing 90min is added into flask Filter, obtains filter cake, finally counts by weight, weigh 50 parts of filter cakes, 5 parts of neopelexes, 8 parts of carboxymethyl celluloses Sodium, 3 parts of triethanolamines and 80 parts of water are added in beaker, and beaker is placed in into digital display tests the speed in constant temperature blender with magnetic force, in temperature For 70 DEG C, rotating speed is stirring reaction 50min under conditions of 260r/min, beaker is taken out, and make the material in beaker naturally cold But to room temperature, you can obtain foam concrete foamer.
Count by weight first, take 60 parts of Portland cements, 30 parts of flyash, 40 parts of temperature for 60 DEG C water and 2.0 parts of concrete early strength agent SY-5B are added in concrete mixer, are obtained concrete slurry after stirring mixing 3min, then will Foam concrete foamer produced by the present invention is added in concrete slurry, and it is concrete slurry quality to control foaming agent addition 2%, it is to be added after the completion of, continue stir mixing 3min, obtain foam concrete slurry, then foam concrete slurry is uniformly noted Enter in concrete-pouring template, stand foaming shaping, it is to be foamed after the completion of, form removal simultaneously conserves 24h, you can foam coagulation Earth building blocks.After testing, foam concrete foamer produced by the present invention has preferable foaminess and foam stability, and coefficient of foaming can Up to 42 times, the foam stabilization time is 9.8h, and the foam stabilizing time extends 2.4h compared with conventional foam concrete foamer, while the bubble being made Foam concrete dry density is 860kg/m3, 28 days compression strength is up to 9.8MPa, and compression strength is mixed compared with foam is made using foaming agent Solidifying soil improves 2.1MPa.

Claims (5)

1. a kind of preparation method of foam concrete foamer, it is characterised in that specifically preparation process is:
(1)Weigh 3~4kg stalks it is size-reduced, sieving, obtain sieving, take 1~2kg sievings carry out steam blasting, obtain quick-fried Material after broken, takes the material after 500~600g steam blastings to carry out soda boiling, filtering, obtains filtrate, filtrate is spray-dried, Obtain dried object;
(2)Weigh after 500~600g soya beans and water mixing, after 10~12h of immersion, the soya bean after immersion is taken out and is beaten, is obtained To soya-bean milk, soya-bean milk is prevented to pour into fermentation tank after putting 2~3 days, in 30~40 DEG C of sealing and fermentings
10~12 days, after after fermentation ends, by tunning high-temperature sterilization, centrifuge, obtain upper liquid, by upper liquid with Filtered after the mixing of 200~300mL absolute ethyl alcohols, obtain filter residue;
(3)40~50g dried objects, 15~20g filter residues, 8~12mL acetaldehyde and 300~400mL water are taken, is stirred in 80~90 DEG C of insulations 2~3h of reaction is mixed, after reaction terminates, 100~200mL absolute ethyl alcohols and 100~200mL dichloroethanes is added into product, is stirred Mix and filtered after mixing, obtain filter cake;
(4)Count by weight, take 40~50 parts of filter cakes, 3~5 parts of neopelexes, 6~8 parts of carboxymethyl celluloses Sodium, 1~3 part of triethanolamine and 70~80 parts of water, in 60~70 DEG C of 40~50min of stirring reaction, obtain foam concrete foaming Agent.
2. a kind of preparation method of foam concrete foamer according to claim 1, it is characterised in that step(1)In Described stalk is the one or more in maize straw, Sunset Abelmoschus Root stalk and cotton stalk.
3. a kind of preparation method of foam concrete foamer according to claim 1, it is characterised in that step(1)In The pressure of described steam blasting is 0.8~1.0MPa, and temperature is 230~250 DEG C, and blasting time is 3~5min.
4. a kind of preparation method of foam concrete foamer according to claim 1, it is characterised in that step(1)In The reagent of described soda boiling is that mass fraction is 15% sodium hydroxide solution, and the temperature of soda boiling is 120~130 DEG C, the time of soda boiling For 2~3h.
5. a kind of preparation method of foam concrete foamer according to claim 1, it is characterised in that step(2)In Described soya bean and the mass ratio of water are 1:5.
CN201710337098.3A 2017-05-14 2017-05-14 A kind of preparation method of foam concrete foamer Pending CN107021667A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107722328A (en) * 2017-10-19 2018-02-23 蒋春霞 A kind of preparation method of composite foamable agent

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103553420A (en) * 2013-10-25 2014-02-05 华南理工大学 Lignin-based foam concrete foaming agent, and preparation method and application thereof
CN104446621A (en) * 2014-11-24 2015-03-25 湖南科技大学 Method for preparing coal gangue foam concrete composite foaming agent

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103553420A (en) * 2013-10-25 2014-02-05 华南理工大学 Lignin-based foam concrete foaming agent, and preparation method and application thereof
CN104446621A (en) * 2014-11-24 2015-03-25 湖南科技大学 Method for preparing coal gangue foam concrete composite foaming agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107722328A (en) * 2017-10-19 2018-02-23 蒋春霞 A kind of preparation method of composite foamable agent

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Application publication date: 20170808