CN109796162A - A kind of strong concrete and its preparation process - Google Patents
A kind of strong concrete and its preparation process Download PDFInfo
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- CN109796162A CN109796162A CN201910255927.2A CN201910255927A CN109796162A CN 109796162 A CN109796162 A CN 109796162A CN 201910255927 A CN201910255927 A CN 201910255927A CN 109796162 A CN109796162 A CN 109796162A
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Abstract
The present invention relates to a kind of strong concretes, it is related to the technical field of concrete preparation, it includes following raw material: 200-260 parts of cement, 30-45 parts of miberal powder, 70-110 parts of flyash, 740-840 parts of yellow ground, 1000-1020 parts of rubble, 3-5 parts of water-retaining agent, 1-3 parts of radiation adsorber and 170-200 parts of water.There is water-retaining agent by being added, so that when worker is to ask pumping convenient, arbitrarily into concrete plus when water, water-retaining agent can be by moisture absorption extra in ready-mixed concrete, so as to maintain the ratio of mud of ready-mixed concrete in optimum range, so that ready-mixed concrete will not increase due to the ratio of mud, and the intensity of concrete is influenced, to improve the intensity of concrete.
Description
Technical field
The present invention relates to the technical fields of concrete preparation, more particularly, to a kind of strong concrete and its preparation work
Skill.
Background technique
The concentrated compactness of concrete is a significant reform in terms of architectural engineering production management, and ready-mixed concrete is answered
With the size of specific gravity, the height of a national concrete industry degree is indicated.Using ready-mixed concrete.It can mention
High labor productivity reduces production cost, the superiority of save construction land tenure, realize civilized construction etc..Meanwhile premixing is mixed
Solidifying soil is compared with site mixed concrete, since concrete company possesses advanced production equipment, specialized inspection and technology
Management, more can ensure that the quality of concrete works using ready-mixed concrete.
But when using ready-mixed concrete, due to the misoperation of worker, when ready-mixed concrete is transported to construction site, pump
Sending operative employee is to ask pumping convenient, just with being intended to add water in concrete, causes the ratio of mud of concrete to increase, to make concrete
Strength reduction.
Summary of the invention
The object of the present invention is to provide a kind of strong concretes, have water-retaining agent by being added, so that when worker is to seek pump
It send conveniently, arbitrarily into concrete plus when water, water-retaining agent can be by moisture absorption extra in ready-mixed concrete, so as to maintain
The ratio of mud of ready-mixed concrete so that ready-mixed concrete will not increase due to the ratio of mud, and influences coagulation in optimum range
The intensity of soil, to improve the intensity of concrete.
Foregoing invention purpose of the invention has the technical scheme that
A kind of strong concrete, including following raw material: 200-260 parts of cement, 30-45 parts of miberal powder, flyash
70-110 parts, 740-840 parts of yellow ground, 1000-1020 parts of rubble, 3-5 parts of water-retaining agent, 1-3 parts of radiation adsorber and water 170-
200 parts.
By using above-mentioned technical proposal, there is water-retaining agent by being added, so that when worker is to ask pumping convenient, arbitrarily toward mixed
In solidifying soil plus when water, water-retaining agent can be by moisture absorption extra in ready-mixed concrete, so as to maintain the water of ready-mixed concrete
Gray scale so that ready-mixed concrete will not increase due to the ratio of mud, and influences the intensity of concrete in optimum range, to improve
The intensity of concrete.
Meanwhile when ready-mixed concrete causes moisture therein to evaporate since haulage time is too long, water-retaining agent can be incited somebody to action
Its intracorporal moisture is stored at slowly to release, with achieve the purpose that adjust concrete moisture content, prevent concrete due to
Moisture is reduced and is solidified, and be can achieve the purpose of retarded concrete, is improved the haulage time of ready-mixed concrete.And worker is not necessarily to
Water is added to facilitate worker operation to maintain the ratio of mud of ready-mixed concrete during concrete transportation.
And in also Nan Tian, the moisture absorption that water-retaining agent can will be attached on wall is improved with maintaining the drying property in room
The use feeling of people.When weather is excessively dry, its intracorporal moisture can be sustained out by water-retaining agent, to adjust in air
Humidity.
Cement: powdery hydraulicity inorganic coagulation material can harden or in water in air at slurry after adding water and stirring
Preferably hardening, and can the materials such as sand, stone are cemented together securely.
The role in concrete such as flyash, miberal powder is mainly the workability for increasing concrete, increases concrete
Drying shrinkage, crack resistance adjust strength grade of concrete, and mixing in concrete mixing natural or artificial can improve concrete
The powdered ore substance of performance, and it is corrosion-resistant, and early strength is high.
The effect of yellow ground is the gap for filling stone, keeps concrete more closely knit.In addition cement mortar is formed with cement slurry,
Improve the workability and mobility of concrete.
Rubble, which plays the role of reducing, to be shunk, and cement slurry contraction is very big, and rubble plays inhibition and shrinks, and stable volume is made very much
With, meanwhile, reduce Cost of Concrete.
With the development of the times, the radiation that the mankind are subject to is more and more, and people are easy induction by after these radiation for a long time
A variety of diseases such as cancer, leukaemia, the disorder of thyroid gland technical ability, sterility, birth defects.Radiation adsorber can radiate these
It absorbs, improves the health of people.
The present invention is further arranged to: further including following raw material in the concrete: nitrilotriacetic acid 0.1-0.5
Part, 0.2-0.6 parts of gluconic acid, 0.4-0.8 parts of sodium polyphosphate.
By using above-mentioned technical proposal, by using above-mentioned technical proposal, nitrilotriacetic acid, gluconic acid and poly phosphorus
Sour sodium prevents calcium and magnesium ion excessive, influences concrete as chelating agent to calcium, the magnesium, chloride ion in absorption and coagulation soil
Intensity.Since chloride ion can hydrolyze, thus the reinforcing bar in corrosion concrete, so that the structure of armored concrete is influenced, to drop
The intensity of low armored concrete.
The present invention is further arranged to: the water-retaining agent includes following weight percent meter raw material: acrylic acid 10-20%,
Hydroxypropyl methyl cellulose ether 10-20%, diacetone acrylamide 1-10%, acrylamide 1-10%, N, N- di-2-ethylhexylphosphine oxide third
Acrylamide 0.3-0.7%, ammonium persulfate 0.1-0.5%, L- ascorbic acid sodium 0.1-0.5%, cornstarch 10-20%, hydroxide
Sodium 10-20%, the first auxiliary agent 1-10%, paste agent 0.6-1% and excess water.
By using above-mentioned technical proposal, acrylic acid is reacted with sodium hydroxide, can be in N after producing acrylates, and N- is sub-
Under the catalysis of bisacrylamide, ammonium persulfate and L- ascorbic acid sodium, handed over diacetone acrylamide and acrylamide copolymerization
Connection or autohemagglutination generate acrylic copolymer, mainly include two kinds of super absorbent resins of polyacrylamide and Sodium Polyacrylate.Due to
The strand of acrylic copolymer contains a large amount of amides and carboxylated hydrophilic group, utilizes resin inner ion and group and aqueous solution
The affinity of osmotic pressure and polyelectrolyte and water that the difference of the concentration of Related Component generates and can largely absorb water until concentration
Until difference disappears.
Diacetone acrylamide and acrylamide functional monomer, to provide amide group.
N,N methylene bis acrylamide is crosslinking agent.Ammonium persulfate and L- ascorbic acid sodium redox system initiator.
Cornstarch can be gelatinized under the action of paste agent and generate beta-cyclodextrin.Beta-cyclodextrin is can be with N, N- methylene
It is sent out under the catalysis of base bisacrylamide, ammonium persulfate and L- ascorbic acid sodium with acrylic copolymer and hydroxypropyl methyl cellulose ether
Raw copolymerzation with cross-linking, so that having beta-cyclodextrin group in acrylic copolymer and hydroxypropyl methyl cellulose ether strand.
Beta-cyclodextrin group is due to self character, and outside shows as showing as hydrophobicity on the inside of hydrophily, so as to enhance water conservation
The guarantor of agent is collapsed ability, and the water-retaining property and cohesiveness of concrete are improved.
Hydroxypropyl methyl cellulose ether due on hydroxyl and ehter bond oxygen atom and associated water molecules at hydrogen bond, make free water
Become to combine water, therefore the water-retaining property of hydroxypropyl methyl cellulose ether is very high.
Acrylates can under the catalysis of N,N methylene bis acrylamide, ammonium persulfate and L- ascorbic acid sodium with hydroxypropyl
Ylmethyl cellulose ether crosslinks copolymerization, so that having carboxyl in hydroxypropyl methyl cellulose ether strand, increases hydroxyl
The hydrophily of propyl methocel ether, to improve the water-retaining property of hydroxypropyl methyl cellulose ether.
Diacetone acrylamide and acrylamide can be in N,N methylene bis acrylamide, ammonium persulfate and L- ascorbic acids
Copolymerization is crosslinked under the catalysis of sodium with hydroxypropyl methyl cellulose ether, so that in hydroxypropyl methyl cellulose ether strand
With amide groups, increase the hydrophily of hydroxypropyl methyl cellulose ether, to improve the water-retaining property of hydroxypropyl methyl cellulose ether.
And carboxyl, amide group and beta-cyclodextrin can be formed in adsorbed cement particle surface it is certain thickness hydrophilic
Property solid adsorption layer.When cement granules are close to each other, adsorption layer starts to be overlapped, i.e., generates steric hindrance between cement granules and make
With, overlapping is more, and steric hindrance repulsion is bigger, and it is also bigger between the obstruction of cohesion cement granules, so that concrete collapses
Degree of falling keeps good.
By introducing beta-cyclodextrin group, carboxyl and amide group in macromolecular, the branch on macromolecular strand is improved
Chain quantity, to improve the Water-saving effect and slump retaining of water-retaining agent.Simultaneously as the steric hindrance between three kinds of groups is different,
By the effect between three kinds of group steric hindrances, the anti-mud and slump retaining of water-retaining agent are improved.And due between three kinds of groups
Contained current potential and steric hindrance between synergistic effect, can be improved the graft reaction of three kinds of groups, improve in macromolecular effectively
The introduction volume of group.
It is used in compounding, is acted synergistically by a variety of hydroscopic high-molecular resins, the soaking effect of water-retaining agent can be improved
And slump retaining.
First auxiliary agent is filler, to increase the crushing resistance and fold resistance of concrete.
The present invention is further arranged to: first auxiliary agent include nano-bentonite 36-40%, tara gum 16-20%,
Coupling agent 1-5%, chitosan 6-10%, hydrogen peroxide 1-5%, maleic anhydride 10-14%, surplus are water.
By using above-mentioned technical proposal, since nano-bentonite has thick water retention and thixotropic property, for mortar
Mechanical strength increase.
After tara gum can be mixed with water, a kind of colloid with certain viscosity is formed, it is each so as to coat very well
Raw material improves the conjugation between raw material.
With nano-bentonite coupling reaction can occur for chitosan under action of coupling agents, so that concrete has antibacterial
Effect.
Coupling agent is also used as dispersing agent, improves the dispersion effect between each raw material.
With beta-cyclodextrin esterification can occur for maleic anhydride, maleic acid-beta-cyclodextrin be generated, then in N, N- methylene
It is sent out under the catalysis of base bisacrylamide, ammonium persulfate and L- ascorbic acid sodium with acrylic copolymer and hydroxypropyl methyl cellulose ether
Raw copolymerzation with cross-linking, so that having beta-cyclodextrin group in acrylic copolymer and hydroxypropyl methyl cellulose ether strand.
Improving grafting rate of the beta-cyclodextrin in macromolecular improves the water conservation of concrete so as to improve the water absorbing properties of water-retaining agent
Property and cohesiveness.
The present invention is further arranged to: the paste agent includes following weight percent meter raw material: ammonium hydroxide 20-40%, three
Ethanol amine 1-3%, sodium carboxymethylcellulose 10-30%, cyclodextrin glycosyltransferase 2-6%, catalase 1-5%,
Sodium chloride 10-30% and water surplus.
By using above-mentioned technical proposal, cyclodextrin glycosyltransferase can make the glucoside key of the long-chain molecule of starch disconnected
It splits, generates beta-cyclodextrin, improve the gelatinization of starch.
Cyclodextrin glycosyltransferase is generated by Alkaliphilic bacillus, therefore under alkaline condition, is still had fine
Activity.
Sodium carboxymethylcellulose is as carrier, to fixed cyclodextrin glycosyltransferase.And sodium carboxymethylcellulose
There is the performance of water conservation to mortar, and due to its hydrophobic character, mortar workability when stirring is fine.
Can be energy saving using the gelatinization that biological enzyme improves starch, and non-environmental-pollution, mild condition, catalysis is single-minded,
High catalytic efficiency is a kind of green production processing.
Ammonium hydroxide and triethanolamine improve the pasting effect and degree of starch, to improve water-base cement to adjust pH value
Yield.Triethanolamine prevents calcium and magnesium ion excessive, influences as chelating agent to calcium, the magnesium, chloride ion in absorption and coagulation soil
The intensity of concrete.
By the pasting effect of starch being improved, to increase for the alkali soluble of starch is swollen and both biocatalysis collective effect
Beta-cyclodextrin production efficiency and yield.
Sodium chloride improves the activity of enzyme as activator, to improve desizing efficiency, increases various enzymes in desizing liquid
Stability.
Catalase can react with hydrogen peroxide and generate oxygen, to introduce gas in concrete, improve
The workability of concrete mix, water-retaining property and cohesiveness improve concrete flowability.
The present invention is further arranged to: the coupling agent includes following weight percent meter raw material: silane coupling agent 30-
40%, zirconium ester coupling agent 10-20%, aluminate coupling agent 20-30%, titanate coupling agent 20-30%.
By using above-mentioned technical proposal, silane coupling agent can be surface-treated filler, can also be directly added into tree
In rouge.Dispersibility and bonding force of the filler in resin can be improved, improve the compatibility between inorganic filler and resin, improve work
The performances such as skill performance and the machinery, electricity and the weatherability that improve packing material.
Zirconium ester coupling agent can be reacted with chelating agent can generate corresponding, the lower zirconium chelate of reactivity, these zirconiums
Chelate is suitable for many occasions for needing low reaction activity, such as esterification/ester exchange reaction, polycondensation reaction, it can also be used to PP, PE
Polymerization reaction.Such as active very high Zr801 can be with the lower function of activity on polymer, mineral substrate and the effective coating of metal
Group such as-OH and-COOH interacts, and can also promote the bonding or crosslinking of polymer.
The various inorganic particles handled through aluminate coupling agent activation modification are made because chemically or physically chemistry occurs for its surface
With a molecule organic layer is generated, organophilic is become by hydrophily.It was verified that inorganic powder surface changes through aluminate coupling agent
Property after in composite article, the parent of coupling agent can to send out with inorganic filler surface and organic resin respectively without generator terminal and organic-philic end
Biochemical reaction or formation tangled structure, enhance the interface compatibility of inorganic particle and organic resin.So with Aluminate idol
Join agent to be modified, can not only improve the processing performance of the plastic products of filling inorganic particle, but also product can be obviously improved
Physical mechanical property, make product water absorption rate reduction, oil absorption reduce, filler dispersion it is even.
Titanate coupling agent all has preferable coupling in the filler systems such as thermoplastic, thermosetting plastics and rubber
Effect.Titanate coupling agent is broadly divided into four classes by its structure: monoalkoxy type, monoalkoxy pyrophosphoric acid ester type, integrated
With coordination figure.
It is used in compounding by four kinds of coupling agents, learns from other's strong points to offset one's weaknesses, act synergistically, the coupling to improve coupling agent is imitated
Fruit, to improve the dispersion effect and Water-saving effect of each raw material in water-retaining agent.
The present invention is further arranged to: the radiation adsorber includes following weight percent meter raw material: colemanite 30-
40%, steel fibre 10-20%, lead tungstate 20-30%, nanometer zinc ferrite 20-30%.
By using above-mentioned technical proposal, colemanite, lead tungstate and nanometer zinc ferrite can be absorbed to be spread in air
Various rays, to improve the health and life security of people.
Steel fibre can various rays to be spread in shroud air, to improve the health and life security of people.
Meanwhile the intensity of concrete can be improved.
It is used in compounding by four kinds of different absorbents, learns from other's strong points to offset one's weaknesses, act synergistically, to improve radiation adsorber
Assimilation effect, meanwhile, reduce the cost of enterprise.
The present invention is further arranged to: the strong concrete further includes following raw material: polycarboxylate water-reducer
3-7 parts；1-3 parts of pumping admixture；1-3 parts of air entraining agent.
By using above-mentioned technical proposal, water-reducing agent can reduce institute's water requirement when concrete mixing, and can increase
The intensity of concrete.
Pumping admixture is also known as concrete pump-feed agent.It is a kind of additive for improving concrete pumping performance, has brilliance
Water reducing and strength-increasing effect and slow setting protect plasticity energy.
Air entraining agent can improve the workability of concrete mix, water-retaining property and cohesiveness, improve concrete flowability,
A large amount of equally distributed, closure and the additive of stable micro-bubble are introduced during the mixing and stirring of concrete mix.
A kind of preparation process of strong concrete, the strong concrete include following preparation process:
1) water-retaining agent is prepared in proportion:
A. the first auxiliary agent, paste agent are prepared in proportion；
B. in proportion by acrylic acid and sodium hydroxide after mixing, be made mixture first；
C. be proportionally added into mixture first diacetone acrylamide, acrylamide, N,N methylene bis acrylamide,
After mixing, mixture second is made in ammonium persulfate and L- ascorbic acid sodium；
D. after being in proportion mixed and heated cornstarch, paste agent and water, mixture third is made；
E. hydroxypropyl methyl cellulose ether and mixture third are added in mixture second, mixture fourth is made；
F. the first auxiliary agent is added in mixture fourth in proportion, water-retaining agent is made.
2) radiation adsorber is prepared in proportion:
In proportion after mixing by colemanite, lead tungstate and nanometer zinc ferrite, mixture is pulverized, is added
After mixing, radiation adsorber is made in steel fibre；
3) in proportion by rubble, yellow ground, cement, miberal powder, flyash, water-retaining agent, radiation adsorber, polycarboxylate water-reducer,
Pumping admixture, air entraining agent, nitrilotriacetic acid, gluconic acid, sodium polyphosphate after mixing, are added water and stir evenly, and are made mixed
Solidifying soil.
By using above-mentioned technical proposal, first acrylic acid and sodium hydroxide are mixed in step 1, acrylates is made.Again
Diacetone acrylamide, acrylamide, N, N- methylene-bisacrylamide, ammonium persulfate and L- ascorbic acid sodium, preparation third is added
Olefin(e) acid copolymer.Then mixture third and hydroxypropyl methyl cellulose ether is added, graft copolymerization occurs, draws in macromolecular to make
Enter beta-cyclodextrin group and carboxyl, improves the water retention property of water-retaining agent.
In step 2, after first colemanite, lead tungstate and nanometer zinc ferrite are uniformly mixed and are pulverized, steel is added
Fiber is adsorbed on colemanite, lead tungstate and nanometer zinc ferrite on steel fibre, improves colemanite, lead tungstate, receives
Binding force between rice zinc ferrite and steel fibre, prevents colemanite, lead tungstate and nanometer zinc ferrite to be individually dispersed in concrete
In, influence the effect that radiation adsorber absorbs radiation.
And the partial size that colemanite, lead tungstate and nanometer zinc ferrite are pulverized after mixing is prevented in 0.2-0.3mm
Partial size is excessive, causes colemanite, lead tungstate and nanometer zinc ferrite powder that can not be adsorbed on steel fibre.Partial size is too small to be caused firmly
Bechilite, lead tungstate and nanometer zinc ferrite powder are reunited, and can not be dispersed well.
The present invention is further arranged to: first auxiliary agent includes following preparation process:
A. coupling agent is prepared in proportion: in proportion by silane coupling agent, zirconium ester coupling agent, aluminate coupling agent and metatitanic acid
After mixing, coupling agent is made in ester coupling agent；
B. after in proportion mixing tara gum and water, the first mixed liquor is made；
C. after in proportion mixing nano-bentonite, maleic anhydride and hydrogen peroxide, the second mixed liquor is made；
D. after in proportion mixing chitosan, coupling agent, the first mixed liquor and the second mixed liquor, the first auxiliary agent is made.
By using above-mentioned technical proposal, after first mixing tara gum and water, the gel with certain viscosity is made.It will
It after nano-bentonite, maleic anhydride and hydrogen peroxide mixing, then mixes with the first mixed liquor, chitosan and coupling agent, so that horse
Coming acid anhydrides and hydrogen peroxide can be attracted in the hole of nano-bentonite, and then tara gum is by maleic anhydride and peroxidating
Hydrogen is wrapped in nano-bentonite, achievees the effect that be sustained maleic anhydride and hydrogen peroxide.
Finally by chitosan, silane coupling agent, the first mixed liquor and the second mixed liquor, so that chitosan, silane coupling agent
It can be very good to be combined together with nano-bentonite, improve the contact area between each raw material, so as to improve chitosan
With the coupling reaction of nano-bentonite so that swelling agent has the effect of antibacterial.
In conclusion advantageous effects of the invention are as follows:
1, there is water-retaining agent by being added, so that when worker is to ask pumping convenient, arbitrarily into concrete plus when water, water-retaining agent
Can by moisture absorption extra in ready-mixed concrete, so as to maintain the ratio of mud of ready-mixed concrete in optimum range, with
So that ready-mixed concrete will not increase due to the ratio of mud, and the intensity of concrete is influenced, to improve the intensity of concrete；
2, it by introducing beta-cyclodextrin group, carboxyl and amide group in macromolecular, improves on macromolecular strand
Branch quantity, so that the Water-saving effect and slump retaining of water-retaining agent are improved, simultaneously as the steric hindrance between three kinds of groups is not
Together, the anti-mud and slump retaining of water-retaining agent are improved by the effect between three kinds of group steric hindrances, and due to three kinds of groups it
Between contained current potential and steric hindrance between synergistic effect, can be improved the graft reaction of three kinds of groups, improving has in macromolecular
Imitate the introduction volume of group；
3, it is used in compounding, is acted synergistically by a variety of hydroscopic high-molecular resins, the water suction effect of water-retaining agent can be improved
Fruit and slump retaining；
4, it is used in compounding, is learnt from other's strong points to offset one's weaknesses by colemanite, steel fibre, lead tungstate and nanometer zinc ferrite, collaboration occurs and makees
With, to improve the assimilation effect of radiation adsorber, meanwhile, reduce the cost of enterprise.
Specific embodiment
For a kind of strong concrete disclosed by the invention, including following preparation process:
1) water-retaining agent is prepared in proportion:
A. the first auxiliary agent is prepared in proportion:
A. coupling agent is prepared in proportion: by 35% silane coupling agent, 15% zirconium ester coupling agent, 25% Aluminate
Coupling agent and 25% titanate coupling agent after mixing, be made coupling agent；
Silane coupling agent uses the silane coupling agent of the Nanjing model KH-560 that Chemical Co., Ltd. is sold forward；Zirconium
The zirconium ester coupling agent for the model DN-807 that acid esters coupling agent is sold using Nanjing Pin Ning coupling agent Co., Ltd；Aluminate
The aluminate coupling agent that coupling agent uses Jingjiang City Kang Gaote new material Science and Technology Ltd. to be sold；Titanate coupling agent uses
The titanate coupling agent for the model TCA-AA75 that Nanjing Neng De Chemical Co., Ltd. is sold；
B. after the water of 18% tara gum and 18% being mixed, the first mixed liquor is made；
C. after mixing 38% nano-bentonite, 12% maleic anhydride and 3% hydrogen peroxide, the second mixing is made
Liquid；The mass fraction of hydrogen peroxide is 25% in the present invention；
D. it after mixing 8% chitosan, 3% coupling agent, the first mixed liquor and the second mixed liquor, is made first and helps
Agent；
Paste agent is prepared in proportion: by 30% ammonium hydroxide, 2% triethanolamine, 20% sodium carboxymethylcellulose, 4%
Cyclodextrin glycosyltransferase, 3% catalase, 20% sodium chloride and 21% water；Ammonia in the present invention
The mass fraction of water is 30%；
B. by 15% acrylic acid and 15% sodium hydroxide after mixing, be made mixture first；
C. in mixture first be added 5% diacetone acrylamide, 5% acrylamide, 0.5% N, N- methylene
After mixing, mixture second is made in bisacrylamide, 0.3% ammonium persulfate and 0.3% L- ascorbic acid sodium；
D. after being mixed and heated 15% cornstarch, 0.8% paste agent and 23.1% water, mixture is made
Third；
E. 15% hydroxypropyl methyl cellulose ether and mixture third are added in mixture second, mixture fourth is made；
F. 5% the first auxiliary agent is added in mixture fourth, water-retaining agent is made.
2) radiation adsorber is prepared in proportion:
After mixing by 35% colemanite, 25% lead tungstate and 25% nanometer zinc ferrite, mixture is ground
The powder that partial size is 0.25mm is worn into, adds 15% steel fibre after mixing, radiation adsorber is made；
3) by 1010 parts of rubble, 790 parts of yellow ground, 230 parts of cement, 38 parts of miberal powder, 90 parts of flyash, 4 parts
Water-retaining agent, 2 parts of radiation adsorber, 5 parts of polycarboxylate water-reducer, 2 parts of pumping admixture, 2 parts of air entraining agent, 0.3 part of nitrogen
River triacetic acid, 0.4 part of gluconic acid, 0.6 part of sodium polyphosphate after mixing, are added water and stir evenly, coagulation is made
Soil；
The article No. that polycarboxylate water-reducer uses Zhengzhou the lucky star chemical products Co., Ltd to be sold subtracts for 42152 polycarboxylic acids
Aqua；The pumping admixture for the model MHC-P that pumping admixture is sold using the source Baoding Mu Huheng building material Co., Ltd；Air entraining agent
Using the air entraining agent for the model ZY-97 that Hangzhou Zhongye Plant Technology Co., Ltd. is sold.
Use concrete strength prepared by present invention process for C120.
Embodiment 2-5 the difference from embodiment 1 is that, the strong concrete includes following raw material:
Embodiment 6-9 the difference from embodiment 1 is that, the water-retaining agent includes the raw material of following weight percent meter:
Embodiment 10-13 the difference from embodiment 1 is that, first auxiliary agent includes the original of following weight percent meter
Material:
Embodiment 14-17 the difference from embodiment 1 is that, the paste agent includes the raw material of following weight percent meter:
Embodiment 18-21 the difference from embodiment 1 is that, the coupling agent includes the raw material of following weight percent meter:
Embodiment 22-25 the difference from embodiment 1 is that, the radiation adsorber includes the original of following weight percent meter
Material:
Comparative example
Comparative example 1 the difference from embodiment 1 is that, do not include water-retaining agent in the strong concrete raw material；
Comparative example 2 the difference from embodiment 1 is that, do not include radiation adsorber in the strong concrete raw material；
Comparative example 3 the difference from embodiment 1 is that, do not include hydroxypropyl methyl cellulose ether in the water-retaining agent raw material；
Comparative example 4 the difference from embodiment 1 is that, do not include cornstarch in the water-retaining agent raw material；
Comparative example 5 the difference from embodiment 1 is that, do not include the first auxiliary agent in the water-retaining agent raw material；
Comparative example 6 the difference from embodiment 1 is that, do not include paste agent in the water-retaining agent raw material；
Comparative example 7 the difference from embodiment 1 is that, the coupling agent contains only silane coupling agent, zirconium ester coupling agent, aluminium
The one or two of acid esters coupling agent and titanate coupling agent or three kinds；Silane coupling agent 40%, aluminium are chosen in this comparative example
Acid esters coupling agent 30%, titanate coupling agent 30%；
Comparative example 8 the difference from embodiment 1 is that, the radiation adsorber contain only bechilite, steel fibre, lead tungstate and
The one or two of nanometer zinc ferrite or three kinds；Bechilite 40%, lead tungstate 30%, nanometer zinc ferrite are chosen in this comparative example
30%；
Comparative example 9 the difference from embodiment 1 is that, use the common intensity in market for the concrete proportioning of C120, matched
Super high strength concrete；
Excessive water is added in comparative example 10 in the ready-mixed concrete for the embodiment 1 matched；
Comparative example 11 is added and same amount of water in comparative example 10 in the ready-mixed concrete that comparative example 9 is matched.
Embodiment 1-3 and comparative example 1-11 is subjected to GB/T50081-2002 " normal concrete mechanical test method
Standard " test:
As seen from the above table, comparative example 1- is all better than using concrete prepared by present invention process, intensity and slump
9, illustrate that the intensity for having water-retaining agent and radiation adsorber that concrete can be improved is added.And its crushing resistance and anti-drawing property of splitting all are better than pair
Ratio 1-9 illustrates that addition has water-retaining agent and radiation adsorber that its crushing resistance can be improved and resist and splits drawing.Meanwhile it is viscous with fashioned iron
For knotting strength also superior to comparative example 1-9, illustrating to be added has water-retaining agent and radiation adsorber that can reinforce concrete and fashioned iron adhesion strength,
To improve the intensity of reinforced concrete structure.
Comparative example 10-11 compares it is found that having water-retaining agent by being added, so that when worker is to ask pumping convenient, arbitrarily toward mixed
In solidifying soil plus when water, water-retaining agent can be by moisture absorption extra in ready-mixed concrete, so as to maintain the water of ready-mixed concrete
Gray scale so that ready-mixed concrete will not increase due to the ratio of mud, and influences the intensity of concrete in optimum range, to improve
The intensity of concrete.
Product prepared in embodiment 1-3 and comparative example 1, comparative example 3-7 is subjected to water absorption rate and retentiveness test:
Water absorption rate test method: weighing 1g water-retaining agent, is put into pure water and impregnates for 24 hours, filters off residual moisture with sieve, claims
Weight measures water absorption rate.Water absorption rate calculating formula are as follows:
Water absorption rate=(quality of water-retaining agent-drying water-retaining agent quality after water suction)/drying water-retaining agent quality；
Retentiveness test method: the water-retaining agent after above-mentioned water suction is placed in centrifuge (1000r/min) and carries out centrifugation vibration
It swings processing, after 1min, outwells the water isolated, electronic scale weighs up its quality again by above-mentioned residue, measures retentiveness.Water holding
Property calculating formula are as follows:
After the oscillation of retentiveness=centrifugation after quality/water suction of water-retaining agent water-retaining agent quality.
| Test item | Water absorption rate | Retentiveness |
| Embodiment 1 | 700 | 89.9 |
| Embodiment 2 | 689 | 88.9 |
| Embodiment 3 | 695 | 89.5 |
| Comparative example 1 | 280 | 30.5 |
| Comparative example 3 | 325 | 35.2 |
| Comparative example 4 | 319 | 33.6 |
| Comparative example 5 | 398 | 39.8 |
| Comparative example 6 | 320 | 33.1 |
| Comparative example 7 | 423 | 41.5 |
Embodiment 1 is compared with comparative example 1, comparative example 3-5 it is found that explanation is made by a variety of hydroscopic high-molecular resins compounding
With acting synergistically, the soaking effect and Water-saving effect of water-retaining agent can be improved.
Embodiment 1 it is found that be used in compounding by four kinds of coupling agents, is learnt from other's strong points to offset one's weaknesses compared with comparative example 7, and collaboration occurs and makees
With to improve the coupling effect of coupling agent, to improve the dispersion effect and Water-saving effect of each raw material in water-retaining agent.
Embodiment 1 compared with comparative example 6 it is found that can be energy saving using the gelatinization that biological enzyme improves starch, and it is acyclic
Border pollution, mild condition are catalyzed single-minded, high catalytic efficiency, are a kind of green production processing.By the way that the alkali soluble of starch is swollen and raw
Both object catalysis collective effect, improves the pasting effect of starch, to increase beta-cyclodextrin production efficiency and yield, so that water conservation
The soaking effect and Water-saving effect of agent improve.
Product prepared in embodiment 1-3, comparative example 2 and comparative example 8 is subjected to radiation protection detection:
Concrete prepared in embodiment 1-3, comparative example 2 and comparative example 8 is cast to the wall of a stifled 240mm wide, then
Radiation source is placed on to the side of wall, in the model that other side Jining Heng Shuo detecting instrument Co., Ltd of wall is sold
The portable radiation detector measurement radiation of JV6000.
| Detection project | Measurement data |
| Embodiment 1 | 54Sv/h |
| Embodiment 2 | 60Sv/h |
| Embodiment 3 | 65Sv/h |
| Comparative example 2 | 114Sv/h |
| Comparative example 8 | 96Sv/h |
| Original detection source | 120Sv/h |
Embodiment 1, comparative example 2 and comparative example 8 compare it is found that by by bechilite, steel fibre, lead tungstate and nanometer ferrous acid
Zinc is used in compounding, and is learnt from other's strong points to offset one's weaknesses, and is acted synergistically, and the assimilation effect of radiation adsorber can be improved.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of strong concrete, it is characterised in that: including following raw material: 200-260 parts of cement, miberal powder 30-45
Part, 70-110 parts of flyash, 740-840 parts of yellow ground, 1000-1020 parts of rubble, 3-5 parts of water-retaining agent, 1-3 parts of radiation adsorber,
And 170-200 parts of water.
2. a kind of strong concrete according to claim 1, it is characterised in that: further include following heavy in the concrete
Measure part raw material: 0.1-0.5 parts of nitrilotriacetic acid, 0.2-0.6 parts of gluconic acid, 0.4-0.8 parts of sodium polyphosphate.
3. a kind of strong concrete according to claim 1, it is characterised in that: the water-retaining agent includes following weight hundred
Divide than meter raw material: acrylic acid 10-20%, hydroxypropyl methyl cellulose ether 10-20%, diacetone acrylamide 1-10%, acrylamide
1-10%, N,N methylene bis acrylamide 0.3-0.7%, ammonium persulfate 0.1-0.5%, L- ascorbic acid sodium 0.1-0.5%, corn form sediment
Powder 10-20%, sodium hydroxide 10-20%, the first auxiliary agent 1-10%, paste agent 0.6-1% and excess water.
4. a kind of strong concrete according to claim 3, it is characterised in that: first auxiliary agent includes nanometer swelling
Native 36-40%, tara gum 16-20%, coupling agent 1-5%, chitosan 6-10%, hydrogen peroxide 1-5%, maleic anhydride 10-14%, it is remaining
Amount is water.
5. a kind of strong concrete according to claim 3, it is characterised in that: the paste agent includes following weight hundred
Divide than meter raw material: ammonium hydroxide 20-40%, triethanolamine 1-3%, sodium carboxymethylcellulose 10-30%, cyclodextrin glycosyltransferase
2-6%, catalase 1-5%, sodium chloride 10-30% and water surplus.
6. a kind of strong concrete according to claim 4, it is characterised in that: the coupling agent includes following weight hundred
Divide than meter raw material: silane coupling agent 30-40%, zirconium ester coupling agent 10-20%, aluminate coupling agent 20-30%, titanate esters coupling
Agent 20-30%.
7. a kind of strong concrete according to claim 1, it is characterised in that: the radiation adsorber includes following heavy
Measure percentages raw material: colemanite 30-40%, steel fibre 10-20%, lead tungstate 20-30%, nanometer zinc ferrite 20-30%.
8. a kind of strong concrete according to claim 1, it is characterised in that: the strong concrete further include with
Lower raw material: 3-7 parts of polycarboxylate water-reducer；1-3 parts of pumping admixture；1-3 parts of air entraining agent.
9. a kind of preparation process of strong concrete, it is characterised in that: the strong concrete includes following preparation process:
1) water-retaining agent is prepared in proportion:
A. the first auxiliary agent, paste agent are prepared in proportion；
B. in proportion by acrylic acid and sodium hydroxide after mixing, be made mixture first；
C. diacetone acrylamide, acrylamide, N,N methylene bis acrylamide, over cure are proportionally added into mixture first
After mixing, mixture second is made in sour ammonium and L- ascorbic acid sodium；
D. after being in proportion mixed and heated cornstarch, paste agent and water, mixture third is made；
E. hydroxypropyl methyl cellulose ether and mixture third are added in mixture second, mixture fourth is made；
F. the first auxiliary agent is added in mixture fourth in proportion, water-retaining agent is made；
2) radiation adsorber is prepared in proportion:
In proportion after mixing by colemanite, lead tungstate and nanometer zinc ferrite, mixture is pulverized, adds steel fibre
After mixing, radiation adsorber is made in dimension；
3) in proportion by rubble, yellow ground, cement, miberal powder, flyash, water-retaining agent, radiation adsorber, polycarboxylate water-reducer, pumping
Agent, air entraining agent, nitrilotriacetic acid, gluconic acid, sodium polyphosphate after mixing, are added water and stir evenly, concrete is made.
10. a kind of preparation process of strong concrete according to claim 9, it is characterised in that: first auxiliary agent
Including following preparation process:
A. coupling agent is prepared in proportion: in proportion by silane coupling agent, zirconium ester coupling agent, aluminate coupling agent and titanate esters
After mixing, coupling agent is made in coupling agent；
B. after in proportion mixing tara gum and water, the first mixed liquor is made;
C. after in proportion mixing nano-bentonite, maleic anhydride and hydrogen peroxide, the second mixed liquor is made;
D. after in proportion mixing chitosan, coupling agent, the first mixed liquor and the second mixed liquor, the first auxiliary agent is made.
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| CN112608078A (en) * | 2020-11-30 | 2021-04-06 | 深圳景源达建设集团有限公司 | Adhesive for wall tiling, preparation method thereof and wall tiling method adopting adhesive |
| CN114477935A (en) * | 2020-10-27 | 2022-05-13 | 成都岷江混凝土有限公司 | Production method of low-viscosity high-strength concrete |
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| CN115417635A (en) * | 2022-08-11 | 2022-12-02 | 廖登峰 | Radiation-proof silicate exterior wall concrete and preparation method thereof |
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| CN114620973A (en) * | 2022-04-09 | 2022-06-14 | 东莞市建业混凝土有限公司 | Fiber concrete and preparation method thereof |
| CN114620973B (en) * | 2022-04-09 | 2022-11-08 | 东莞市建业混凝土有限公司 | Fiber concrete and preparation method thereof |
| CN115417635A (en) * | 2022-08-11 | 2022-12-02 | 廖登峰 | Radiation-proof silicate exterior wall concrete and preparation method thereof |
| CN115417635B (en) * | 2022-08-11 | 2023-08-15 | 福建永旺建工集团有限公司 | Radiation-proof silicate exterior wall concrete and preparation method thereof |
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