CN104140219A - Anti-cracking and anti-seepage agent for concrete - Google Patents
Anti-cracking and anti-seepage agent for concrete Download PDFInfo
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- CN104140219A CN104140219A CN201410017793.8A CN201410017793A CN104140219A CN 104140219 A CN104140219 A CN 104140219A CN 201410017793 A CN201410017793 A CN 201410017793A CN 104140219 A CN104140219 A CN 104140219A
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- concrete
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- leakage
- reinforcement
- waterproofing
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- 239000004567 concrete Substances 0.000 title claims abstract description 157
- 238000005336 cracking Methods 0.000 title abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 88
- 239000010881 fly ash Substances 0.000 claims abstract description 28
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 25
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011574 phosphorus Substances 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 22
- 238000004078 waterproofing Methods 0.000 claims description 83
- 230000002787 reinforcement Effects 0.000 claims description 57
- 239000000463 material Substances 0.000 claims description 18
- 238000000498 ball milling Methods 0.000 claims description 13
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 10
- 238000011284 combination treatment Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 abstract description 17
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 17
- 230000036571 hydration Effects 0.000 abstract description 14
- 238000006703 hydration reaction Methods 0.000 abstract description 14
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract description 14
- 239000004566 building material Substances 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 19
- 239000000203 mixture Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000378 calcium silicate Substances 0.000 description 4
- 229910052918 calcium silicate Inorganic materials 0.000 description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 4
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 241000282414 Homo sapiens Species 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- -1 fluorgypsum Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000003487 anti-permeability effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000004574 high-performance concrete Substances 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 230000007914 freezing tolerance Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention is suitable for the field of building materials and provides an anti-cracking and anti-seepage agent for concrete. The anti-cracking and anti-seepage agent comprises the following components in parts by weight: 10-70 parts of flyash, 10-50 parts of fluorgypsum, 10-70 parts of phosphorus slag and 5-50 parts of magnesium oxide. The anti-cracking and anti-seepage agent for concrete can reduce hydration heat, compensate for concrete shrinkage, improve the concrete strength and prevent cracking, seepage and other phenomena of concrete, thus improving the stability and durability of concrete.
Description
Technical field
The invention belongs to building material field, relate in particular to the agent of a kind of the reinforcement of concrete waterproofing and anti-leakage.
Background technology
Concrete is one of contemporary topmost civil engineering material, is widely used in the every aspect of building field.But due to concrete, especially mass concrete and high-strength concrete etc., ubiquity shrinkage phenomenon, causes concrete cracking, concrete strength, antiseepage, the performance such as anticorrosive reduce.And the open defect that the expansive concrete material using in the market exists is: concrete hydration heat is high, and concrete shrinkage deformation is large, and the phenomenons such as ubiquity concrete cracking, seepage meanwhile, also reduce concrete strength greatly.And domestic various types of compensating shrinkage of concrete material, such as swelling agent etc., the overwhelming majority is all to utilize pure raw material to carry out pyroprocessing, has both caused huge energy consumption, has brought impact to some extent again to environment.Because products production cost is high, so the market sale price of this series products is expensive.
In addition,, though external imported product has certain waterproofing and anti-leakage performance, effect is all not obvious.Therefore, for concrete construction, particularly for mass concrete, high-intensity concrete construction (as Hydropower Dam, military engineering, Nuclear power plants, subway etc.), find a kind of can be under the prerequisite of proof strength, effectively prevent concrete cracking and seepage, be the great research topic of building technology worker always.
Summary of the invention
The object of the present invention is to provide the agent of a kind of the reinforcement of concrete waterproofing and anti-leakage, be intended to solve especially big physical volume concrete and high-strength, the high performance concrete crack and seepage problems such as Hydropower Dam, military engineering, Nuclear power plants, subway.
Another object of the present invention is to provide a kind of preparation method of the reinforcement of concrete waterproofing and anti-leakage agent of easy control simple to operate.
A further object of the present invention is to provide the application of a kind of the reinforcement of concrete waterproofing and anti-leakage agent as concrete admixture or concrete admixture.
The present invention is achieved in that the agent of a kind of the reinforcement of concrete waterproofing and anti-leakage, comprises the following component of following parts by weight:
And the preparation method of a kind of the reinforcement of concrete waterproofing and anti-leakage agent, comprises the steps:
Formula according to the agent of above-mentioned the reinforcement of concrete waterproofing and anti-leakage takes respectively each component;
Above-mentioned each component is carried out to ball milling, combination treatment.
It is raw material that flyash, fluorgypsum, phosphorus ore slag and magnesium oxide are take in above-mentioned the reinforcement of concrete waterproofing and anti-leakage provided by the invention agent, has reduced production cost; By cooperatively interacting between four kinds of components, both met the needs of concrete early hydration mineral, reduced hydration temperature simultaneously, effectively extended again later concrete and expanded the time, ensured later concrete shrinkage-compensating; In addition, phosphorus ore slag and magnesian interpolation, all can effectively occur to answer with other components, significantly improved concrete strength, make the reinforcement of concrete waterproofing and anti-leakage of the present invention agent when preparing the especially big physical volume concretes such as Hydropower Dam, military engineering, nuclear power engineering, subway engineering and high-strength, high performance concrete, can, in the situation that effectively improving concrete strength, can effectively strengthen concrete anticracking, anti-permeability performance and stability and endurance quality.The preparation method of the reinforcement of concrete waterproofing and anti-leakage agent that the present embodiment provides, with low cost, technique is simply controlled, easily realizes industrialized development.
Accompanying drawing explanation
Fig. 1 is the preparation flow figure of the reinforcement of concrete waterproofing and anti-leakage agent that provides of the embodiment of the present invention;
Fig. 2 is the process flow sheet of the reinforcement of concrete waterproofing and anti-leakage agent that provides of the embodiment of the present invention.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In conventional concrete, on the one hand, because cement consumption is larger, cause higher, the early stage self-constriction of concrete hydration temperature obvious, therefore, concrete shrinkage deformation greatly, easily cracking; On the other hand, due to the volatilization of later stage concrete free water, will further cause concrete shrinkage strain.Contraction can make Concrete Structure Crack, reduces the density of concrete structure, affects the concrete performance such as impervious, freeze proof, anticorrosive.Have based on this, the embodiment of the present invention provides the agent of a kind of the reinforcement of concrete waterproofing and anti-leakage, comprises the following component of following parts by weight:
Particularly, in the agent of above-mentioned the reinforcement of concrete waterproofing and anti-leakage, described flyash is the main solid waste that coal fired thermal power plant is discharged.Flyash is one of industrial residue that the current discharge capacity of China is larger, and along with the development of power industry, the flyash quantity discharged of coal-burning power plant increases year by year.A large amount of flyash does not add processing, will produce airborne dust, atmosphere pollution; If enter water system, can cause river to silt up, and toxic chemical substance wherein also can work the mischief to human body and biology.Therefore, be necessary this flyash rationally to utilize, avoid it for environment, human body, biology, to cause disadvantageous effect.
Research discovery, the main component of described flyash has: SiO
2, Al
2o
3, can there is hydration under certain condition in it, be the main active ingredient of flyash.In flyash, contain the loose porous not combustion carbon granule of part, this material is a kind of inert substance, and its content exists impact to the activity of flyash, and its content is higher, and the activity value of flyash reduces more obvious, and the existence of this composition is also unfavorable to the compacting of flyash; In addition excessive Fe,
2o
3also unfavorable to the activity of flyash.In order to give full play to the effect of above-mentioned flyash activity composition, prevent that other compositions are not as fired carbon granule, Fe simultaneously
2o
3deng the activity to described flyash, impact, in the embodiment of the present invention, as preferred embodiment, the loss on ignition < 15% of described flyash, the gross weight of described flyash of take is 100%, wherein, SiO
2weight percentage be 30-60%, Al
2o
3weight percentage be 20-40%.Of course it is to be understood that in described flyash and also contain except SiO
2, Al
2o
3other compositions in addition.As specific embodiment, in the agent of described the reinforcement of concrete waterproofing and anti-leakage, the parts by weight of flyash are the concrete parts by weight such as 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, 65 parts, 70 parts.
Fluorgypsum is the waste residue producing in fluoride salt production process, and annual China fluoridizes that the fluorgypsum amount that saltworks discharges is very high, and depositing of this industrial residue not only takies a large amount of arable lands, wastes a large amount of construction funds, and if deposit improperly, also pollute the environment.Rationally utilize fluorgypsum to turn waste into wealth.
Main component in fluorgypsum has CaO and SO
3, it can react with the composition of other components as main activeconstituents, generates high-intensity active substance, as hydrated calcium silicate, drated calcium aluminate and aquation calcium sulfate etc.; In addition the interpolation of fluorgypsum, can also be to a certain extent as conditioning agent use time of coagulation.The present invention is in embodiment, and as preferred implementation, the weight percentage that the gross weight of described fluorgypsum of take is 100%, CaO is 20-50%, SO
3weight percentage be 30-70%.The fluorgypsum with this ratio composition, can be better and other components matching, gives full play to the function of each component.Of course it is to be understood that in described fluorgypsum and also contain except CaO, SO
3other compositions in addition.As specific embodiment, in the agent of described the reinforcement of concrete waterproofing and anti-leakage, the parts by weight of fluorgypsum are the concrete parts by weight such as 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts.
In the embodiment of the present invention, magnesium oxide adopts the magnesium oxide of producing through high-temperature calcination magnesite powder, and its magnesium oxide purity is 60-100%.In waterproofing and anti-leakage agent, add after magnesium oxide composition, on the one hand, magnesium oxide is as one of main component of waterproofing and anti-leakage agent, can effectively alleviate the concrete hydration heat in early stage, reduce shrinkage strain, on the other hand, because magnesium oxide has outstanding expansion character, can extend efficiently the expansion time, adjust rate of expansion, effectively the shrinking percentage of compensating concrete, makes concrete shrink less or not shrink.As specific embodiment, in the agent of described the reinforcement of concrete waterproofing and anti-leakage, magnesian parts by weight are the concrete parts by weight such as 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts.
Research is found, uses separately MgO as the agent of the reinforcement of concrete waterproofing and anti-leakage, and when MgO equivalent replaces gelling material, concrete ultimate compression strength, split tensile strength, axial tensile strength and limit stretch value all reduce in various degree, and volume is higher, the range of decrease is larger; And mix phosphorus ore slag in the mixture forming at flyash, fluorgypsum and magnesium oxide, as anti-cracking concrete impervious agent, use, when equivalent replaces gelling material, three can produce synergy, the raising of mechanical performance of concrete is had to obvious enhancement, concrete split tensile strength, axial tensile strength are all higher than mixing the concrete of flyash, fluorgypsum and magnesium oxide formation or using separately phosphorus ore slag or magnesian concrete, concrete autogenous volumetric deformation is stable, and concrete crushing strength significantly improves.
In view of this, the embodiment of the present invention adopts can form the agent of the reinforcement of concrete waterproofing and anti-leakage jointly with flyash, fluorgypsum, the phosphorus ore slag of magnesium oxide complementation, can, on the basis effectively addressing the above problem, give full play to the excellent in performance of each component.
In the embodiment of the present invention, the industrial residue that phosphorus ore Zha Wei phosphorus ore factory produces while utilizing electric furnace process to produce yellow phosphorus, along with continuing to increase of China's yellow phosphorus consumption, the phosphorus slag bringing is also more and more.Owing to containing a large amount of elements such as P, F that can affect animal and plant growth, health in phosphorus ore slag, therefore, if phosphorus ore slag do not processed or rationally utilized, the problem of environmental pollution and harmful to human, animals and plants health will be brought.
Described phosphorus ore slag main component is: CaO, SiO
2, P
2o
5, Al
2o
3, Fe
2o
3deng, on the one hand, phosphorus ore slag, as one of main component of waterproofing and anti-leakage agent, can effectively alleviate the concrete hydration heat in early stage; On the other hand, because CaO content in phosphorus ore slag is higher, its can with flyash, fluorgypsum component in SiO
2, Al
2o
3, SO
3deng interaction, generate the materials such as corresponding hydrated calcium silicate, drated calcium aluminate, aquation calcium sulfate.Due to the remarkable increase of calcium contents, the also corresponding increase of hydrate described in the embodiment of the present invention in waterproofing and anti-leakage agent, therefore, can significantly increase the intensity of waterproofing and anti-leakage agent, thereby has made up the reduction of the concrete strength that magnesian interpolation causes.Therefore, impel waterproofing and anti-leakage agent in concrete, to produce significant enhancement.Add the waterproofing and anti-leakage agent after magnesium oxide and phosphorus ore slag, its intensity activity index can reach more than 60%.In the agent of embodiment of the present invention waterproofing and anti-leakage, for the function of phosphorus ore slag described in balance aspect above-mentioned two, as preferred embodiment, the gross weight of described phosphorus ore slag of take is 100%, wherein, and SiO
2weight percentage be 20-40%, Al
2o
3weight percentage be 2-10%, the weight percentage of CaO is 30-60%.Of course it is to be understood that in described phosphorus ore slag and also contain except CaO, SiO
2, Al
2o
3other compositions in addition.As specific embodiment, in the agent of described the reinforcement of concrete waterproofing and anti-leakage, the parts by weight of phosphorus ore slag are the concrete parts by weight such as 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, 65 parts, 70 parts.
In the embodiment of the present invention, because four kinds of components are all passed through high-temperature calcination, and all contain main active ingredient and low activity composition in four kinds of components.Its main active ingredient can react when hydration and hardening, and generates the multiple hydrated minerals such as hydrated calcium silicate, drated calcium aluminate, aquation calcium sulfate and periclasite with higher-strength; And low activity composition also can slowly generate hydrated minerals at normal temperatures.After described anti-crack and anti-seepage agent joins in concrete, due to hydrated minerals as hydrated calcium silicate, drated calcium aluminate, aquation calcium sulfate and periclasite etc. all can with concrete in hydrated cementitious time the calcium hydroxide gel of separating out react, generate different water-fast multiple hydrated minerals, thereby significantly strengthen concrete density, stability and concrete splitting resistance, impermeability and weather resistance.Effective combination of four kinds of components, activeconstituents in concrete is had complementary advantages and rationally effectively restructuring, like this, both the needs of concrete early hydration mineral had been met, ensured again the growth of later concrete shrinkage-compensating and intensity, can effectively guarantee on the basis of concrete strength, improve waterproofing and anti-leakage performance, for guaranteeing the realization of above-mentioned effect, as preferred embodiment, while using described in the embodiment of the present invention waterproofing and anti-leakage agent, concrete initial set time difference >=90min, the limited expansion rate of concrete 7d in water is 0.010%～0.025%, limited expansion rate >=-0.010% of concrete 21d in air, compressive strength rate >=90% of concrete 28d.
As preferred embodiment, in order to reach better above-mentioned effect, in the embodiment of the present invention, weight percentage≤5% that the gross weight of the reinforcement of concrete waterproofing and anti-leakage agent of take is 100%, MgO, SO
3weight percentage≤30%, SiO
2weight percentage≤55%, Al
2o
3weight percentage≤30%, weight percentage≤20% of CaO, Fe
2o
3weight percentage≤5%.
The particle diameter of the reinforcement of concrete waterproofing and anti-leakage agent is less, and its specific surface area is corresponding larger.Owing to commonly using the specific surface area of cement, be about 300m
2about/kg, when the specific surface area of waterproofing and anti-leakage agent is thinner than cement, by the cement particle diameter gap being conducive in fill concrete, strengthens degree of compactness; In addition, the size of the specific surface area of waterproofing and anti-leakage agent directly affects its aquation process, and the larger aquation of specific surface area is faster, otherwise slower.In the embodiment of the present invention, effectively control hydration time or rate of expansion, except passing through the component of rational allocation waterproofing and anti-leakage agent, reasonably the control of specific surface area is also waterproofing and anti-leakage agent technical requirements key point.In view of this, as another preferred embodiment, the specific surface area>=400m of described the reinforcement of concrete waterproofing and anti-leakage agent
2/ kg, particle diameter require 80 μ m to tail over≤1.0%.
Waterproofing and anti-leakage agent described in the embodiment of the present invention, can reduce hydration heat of cement, slows down aquation process, reduces cement thermal discharge, postpones exothermic peak time of occurrence, can also make concrete cement heat release milder, and cement performance is changed.Because described waterproofing and anti-leakage agent also has microdilatancy characteristic, therefore, described waterproofing and anti-leakage agent is added in high-heat cement, can make modified cement is middle hot micro-expansion cement; Described waterproofing and anti-leakage agent is added in moderate heat cement, and can make modified cement is low heat micro expanding cement.
Described in the embodiment of the present invention, waterproofing and anti-leakage agent replaces after part of cement, and concrete strength still can meet design requirement.Therefore, in mass concrete, as dam engineering, defence engineering, military engineering, nuclear power engineering, subway engineering, airfield runway engineering, highway engineering, railway engineering, bridge construction, Tunnel Engineering, Industrial and Civil Engineering, hydraulic and electric engineering engineering, underground (under water) hidden building, can significantly reduce concrete cement consumption, thereby reduction hydration heat of cement, improve anti-cracking concrete anti-permeability performance, further meet its higher antiseepage, protection against corrosion, stability and life requirement.The reinforcement of concrete waterproofing and anti-leakage of the present invention agent, can directly mix in cement concrete according to definite consumption, with the evenly mix use such as cement, water and sand, stone.
The waterproofing and anti-leakage agent that the embodiment of the present invention provides, adopt industrial residue flyash, fluorgypsum, magnesium oxide and phosphorus ore slag are as component, making full use of industrial residue turns waste into wealth it as renewable resource, both solved flyash, the pollution that the discharge of fluorgypsum and phosphorus ore slag causes environment, reduced again production cost, the more important thing is that magnesium oxide and phosphorus ore slag have reduced concrete hydration heat, heat energy swelling property, can make concrete reach microdilatancy or not shrink or few contraction, improve concrete resistance to elevated temperatures, alleviate particle separation and bleed phenomenon, reduce concrete contraction and cracking and suppress the corrosion of stray current to reinforcement in concrete, be conducive to improve anti-cracking concrete, impervious, freezing tolerance, meanwhile, in described anti-cracking concrete impervious agent, the interpolation of phosphorus ore slag, has made up the strength decreased that magnesian interpolation causes, and has effectively improved concrete intensity, and its index of activity is reached more than 60%.In addition, described in the embodiment of the present invention, waterproofing and anti-leakage agent can also improve concrete workability and pumpability, strengthen concrete cohesiveness, parcel property, concrete is not emanated, slump free of losses, concrete keeps good water retention property, and concrete mechanical property, deformation performance and endurance quality significantly improve, and meets the waterproofing and anti-leakage requirement of the especially big physical volume concretes such as Hydropower Dam, military engineering, Nuclear power plants, subway.
The reinforcement of concrete waterproofing and anti-leakage agent described in the embodiment of the present invention, can prepare by following method.
Correspondingly, the embodiment of the present invention also provides the preparation method of a kind of the reinforcement of concrete waterproofing and anti-leakage agent, comprises the steps:
S01. according to the formula of above-mentioned the reinforcement of concrete waterproofing and anti-leakage agent, take respectively each component;
S02. above-mentioned each component is carried out to ball milling, combination treatment.
Particularly, each component preferred content in above-mentioned steps S01 in the formula of the reinforcement of concrete waterproofing and anti-leakage agent and formula and kind as described above, in order to save length, do not repeat them here.
In above-mentioned steps S02, described each component taking is carried out to ball milling, combination treatment.The equipment that each component is carried out to ball-milling processing is unrestricted, and ball mill conventional in this area all can be used for the embodiment of the present invention.As preferred embodiment, the material after ball-milling processing, its particle diameter requires 80 μ m to tail over≤1.0%.The time of described ball milling, combination treatment can be adjusted flexibly according to actual production conditions, needs only each component ball milling, mixes fully, if the equipment mixing can be mixing tank etc.When above-mentioned ball milling, mixing, material can be carried out to dust suction processing, reduce material dust, and it is discharged and reclaimed through venting port.In specific embodiment, can will through high-pressure delivery machine, be delivered to stockyard through ball milling, mixed batch mixing, form the reinforcement of concrete waterproofing and anti-leakage agent finished product, as shown in Figure 2.
The preparation method of the reinforcement of concrete waterproofing and anti-leakage agent that the embodiment of the present invention provides, only need carry out ball milling, combination treatment by each component, and its preparation technology is simple, easily control, and production efficiency is high.
The embodiment of the present invention also provides the application of the reinforcement of concrete waterproofing and anti-leakage agent as concrete admixture or concrete admixture.
As preferred embodiment, when the agent of the reinforcement of concrete waterproofing and anti-leakage is applied as concrete admixture, the gross weight of gelling material use quantity of take is 100% calculating, and the weight percentage that described waterproofing and anti-leakage agent accounts for gelling material gross weight is 10-15%; When the agent of the reinforcement of concrete waterproofing and anti-leakage is applied as concrete admixture, the gross weight of gelling material use quantity of take is 100% calculating, and the weight percentage that described waterproofing and anti-leakage agent accounts for gelling material gross weight is 10-60%.
Embodiment 1
The agent of the reinforcement of concrete waterproofing and anti-leakage, comprises the following component of following parts by weight:
The preparation method of above-mentioned the reinforcement of concrete waterproofing and anti-leakage agent, comprises the steps:
S11. according to the formula of above-mentioned the reinforcement of concrete waterproofing and anti-leakage agent, take respectively each component;
S12. above-mentioned each component is carried out to ball milling, combination treatment.
Embodiment 2
The agent of the reinforcement of concrete waterproofing and anti-leakage, comprises the following component of following parts by weight:
The preparation method of above-mentioned the reinforcement of concrete waterproofing and anti-leakage agent, comprises the steps:
S21. according to the formula of above-mentioned the reinforcement of concrete waterproofing and anti-leakage agent, take respectively each component;
S22. above-mentioned each component is carried out to ball milling, combination treatment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a reinforcement of concrete waterproofing and anti-leakage agent, comprises the following component of following parts by weight:
2. the reinforcement of concrete waterproofing and anti-leakage as claimed in claim 1 agent, is characterized in that, the loss on ignition < 15% of described flyash, and the gross weight of described flyash of take is 100%, wherein, SiO
2weight percentage be 30-60%, Al
2o
3weight percentage be 20-40%.
3. the reinforcement of concrete waterproofing and anti-leakage as claimed in claim 1 agent, is characterized in that, the weight percentage that the gross weight of described fluorgypsum of take is 100%, CaO is 20-50%, SO
3weight percentage be 30-70%.
4. the reinforcement of concrete waterproofing and anti-leakage as claimed in claim 1 agent, is characterized in that, the gross weight of described phosphorus ore slag of take is 100%, wherein, and SiO
2weight percentage be 20-40%, Al
2o
3weight percentage be 2-10%, the weight percentage of CaO is 30-60%.
5. the reinforcement of concrete waterproofing and anti-leakage agent as described in as arbitrary in claim 1-4, is characterized in that, described magnesian purity is 60-100%.
6. the reinforcement of concrete waterproofing and anti-leakage agent as described in as arbitrary in claim 1-4, is characterized in that the specific surface area>=400m of described the reinforcement of concrete waterproofing and anti-leakage agent
2/ kg;
The particle diameter of described the reinforcement of concrete waterproofing and anti-leakage agent requires: 80 μ m tail over≤1.0%.
7. the reinforcement of concrete waterproofing and anti-leakage agent as described in as arbitrary in claim 1-4, is characterized in that, weight percentage≤5% that the gross weight of described the reinforcement of concrete waterproofing and anti-leakage agent of take is 100%, MgO, SO
3weight percentage≤30%, SiO
2weight percentage≤55%, Al
2o
3weight percentage≤30%, weight percentage≤20% of CaO, Fe
2o
3weight percentage≤5%.
8. a preparation method for the reinforcement of concrete waterproofing and anti-leakage agent, comprises the steps:
Formula according to the reinforcement of concrete waterproofing and anti-leakage agent described in claim 1-7 any one takes respectively each component;
Above-mentioned each component is carried out to ball milling, combination treatment.
9. the reinforcement of concrete waterproofing and anti-leakage agent described in claim 1-7 any one is as the application of concrete admixture or concrete admixture.
10. the reinforcement of concrete waterproofing and anti-leakage as claimed in claim 9 agent, as the application as concrete admixture or concrete admixture, is characterized in that,
When the agent of described the reinforcement of concrete waterproofing and anti-leakage is applied as concrete admixture, the gross weight of gelling material use quantity of take is 100% calculating, and the weight percentage that described waterproofing and anti-leakage agent accounts for gelling material gross weight is 10-15%;
When the agent of described the reinforcement of concrete waterproofing and anti-leakage is applied as concrete admixture, the gross weight of gelling material use quantity of take is 100% calculating, and the weight percentage that described waterproofing and anti-leakage agent accounts for gelling material gross weight is 10-60%.
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| CN201410017793.8A CN104140219B (en) | 2014-01-15 | 2014-01-15 | A kind of waterproofing and anti-leakage agent of concrete |
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| CN104140219B CN104140219B (en) | 2017-12-26 |
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| CN106007538A (en) * | 2016-05-30 | 2016-10-12 | 江苏名和集团有限公司 | Anti-permeability concrete admixture |
| CN106866022A (en) * | 2017-03-22 | 2017-06-20 | 长江水利委员会长江科学院 | A kind of interior maintaining anti-cracking concrete impervious agent and preparation method thereof |
| CN109665730A (en) * | 2018-12-19 | 2019-04-23 | 龚家玉 | A kind of anticracking cement and preparation method thereof |
| CN109987868A (en) * | 2018-12-06 | 2019-07-09 | 龚家玉 | A kind of concrete anti-cracking agent and its preparation method and application |
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| CN101168480A (en) * | 2006-10-23 | 2008-04-30 | 浙江合力新型建材有限公司 | High-performance concrete corrosion-resistant anti-cracking agent and producing method thereof |
| CN102531452A (en) * | 2010-12-10 | 2012-07-04 | 苏笮斌 | Anti-corrosion anti-cracking reinforcing agent composition and preparation method thereof |
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| CN1603272A (en) * | 2004-09-27 | 2005-04-06 | 武汉理工大学 | Cement and concrete expander prepared by using multiple industrial residues |
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| CN106866022A (en) * | 2017-03-22 | 2017-06-20 | 长江水利委员会长江科学院 | A kind of interior maintaining anti-cracking concrete impervious agent and preparation method thereof |
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| CN109665730A (en) * | 2018-12-19 | 2019-04-23 | 龚家玉 | A kind of anticracking cement and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN104140219B (en) | 2017-12-26 |
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Effective date of registration: 20211210 Address after: 518000 building F, building 6, East factory of Nanfang CIMC Container Manufacturing Co., Ltd., No. 3, Jinlong Avenue, pinghuan community, Maluan street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen yinkun Technology Co.,Ltd. Address before: 411400 Xiangxiang golden concrete admixture factory, Xiangtan City, Hunan Province Patentee before: Gong Jiayu |
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