CN108996970A - A kind of ultra-fine earth concrete and preparation method thereof - Google Patents
A kind of ultra-fine earth concrete and preparation method thereof Download PDFInfo
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- CN108996970A CN108996970A CN201811111049.9A CN201811111049A CN108996970A CN 108996970 A CN108996970 A CN 108996970A CN 201811111049 A CN201811111049 A CN 201811111049A CN 108996970 A CN108996970 A CN 108996970A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The invention discloses a kind of ultra-fine earth concretes, are mainly formulated by soil, cement, flyash, silicon ash, concrete regenerant, iron content polypropylene fibre and water, and the soil is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;The invention also discloses a kind of preparation methods of ultra-fine earth concrete, and raw material is stirred evenly with concrete regenerating agent solution after mixing, is then poured into mold, is successively plugged and pounded and vibrated, then stand health after demoulding.The present invention is exposed single mineral grain or granule in the soil body using grinding and participates in active reaction formation gelinite under the conditions of hydrated reaction of cement is exothermic; keep other ingredients in concrete cemented together securely; to substantially increase the tensile strength of concrete; the cost of material for reducing concrete simultaneously reduces the pollution to environment and destroys;Preparation method of the invention is simple, not high to equipment requirement, it is easy to accomplish, it is suitable for industrialized production.
Description
Technical field
The invention belongs to civil engineering material technical fields, and in particular to a kind of ultra-fine earth concrete and preparation method thereof.
Background technique
Concrete is a kind of essential construction material of engineering construction at present, is widely used and dosage is huge.It is common mixed
Solidifying soil is mainly made of cement and building stones, and the production of cement not only needs to expend a large amount of electric energy, while will cause environment dirt
Dye, such as haze.And the exploitation of building stones can not only expend a large amount of manpower and material resources, while it is more serious to massif destruction to quarry,
Caused environmental disruption effect is more serious.
Application No. is 201510538352.7 patent of invention disclose a kind of superhigh intensity Reactive Powder Concrete and its
Preparation method, application No. is 201710175668.3 patents of invention to disclose a kind of regeneration steel fibre ultra-high performance concrete and system
Preparation Method, using quartz sand as the composition major ingredient of concrete, solid material group of the quartz sand in concrete in the two patents
Accounting in point is maximum.The commercially available price of quartz sand is about 2000 yuan/ton at present, expensive, considerably increases concrete
Cost of material;And the concrete sample of quartz sand production is used to need the health in vaporium that could obtain high-intensitive performance,
The preparation cost of concrete is further increased, and is unfavorable for the extensive site operation of highway engineering;Quartz sand is produced simultaneously
It needs to exploit a large amount of ore as raw material, has be easy to cause the destruction of environment.Bad, institute is generally pulled open in the destruction on existing road surface
It is an important quality index for investigating concrete road surface, " highway cement concrete pavement design specification " with bending tensile strength
Require the control of 28d flexural tensile strength standard value in 2.0MPa~2.5MPa base material in (JTG D40-2011).It is above-mentioned two
Although the intensity of concrete in patent can satisfy road requirement, but its high cost of material and stringent health-preserving condition,
Causing it not to be suitable for, this distribution area of highway is wide, and materials demand amount is big, it would be desirable to be able to the requirement of extensive site operation.Therefore
Need it is a kind of be not only able to satisfy road requirement, but also cost of material can be reduced and raw material materials are convenient, reduce the novel of environmental disruption mixes
Solidifying soil.
In addition, a large amount of fired brick brick fields are shut down, and ordinary fired brick is in short supply recently as the raising of environmental requirement, it is anxious
A kind of substitution tile product that environment-friendly type can be high is needed, certain compression strength should be met, and can be reduced the pollution to environment.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, providing, a kind of ultra-fine soil is mixed
Solidifying soil.The concrete is made single in the soil body with being ground to soil of 90% or more the partial size less than 1mm as primary raw material using grinding
Mineral grain or granule are exposed and have the granularity condition for participating in active reaction, and the cement in concrete material occurs
Hydration reaction and it is exothermic under the conditions of, native Mineral Component occurs chemical reaction and forms gelinite, makes in concrete
Other ingredients are cemented together securely, so that the tensile strength of concrete is substantially increased, due to the from a wealth of sources and nothing of soil
Place of production limitation, substantially reduces the cost of material of concrete, reduces the pollution to environment and destroys.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows: a kind of ultra-fine earth concrete, feature exist
In being made of the component of following mass fraction: 810~2290 parts of soil, 149~448 parts of cement, 82.6~332 parts of flyash, silicon
49.4~200 parts of ash, 40~100 parts of concrete regenerant, 0.1~200 part of iron content polypropylene fibre, quick lime mountain flour 0~148
Part, 0~100 part of iron powder, 318~827 parts of water;The soil is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;It is described to contain
Iron polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret.
The present invention is to be ground to soil of 90% or more the partial size less than 1mm as the primary raw material of concrete component, due to soil
The single mineral grain of the composition soil body or granule are exposed when partial size is less than 1mm after ground crushing, in native Mineral Component
Quartz, feldspar, calcite and dolomite partial size mostly in 100um hereinafter, have the granularity condition for participating in active reaction,
Hydration reaction occurs after the cement in concrete material is mixed with water and releases heat make heating inside hydration reaction system,
The concrete regenerant in concrete material, which is wrapped up in, simultaneously is attached to around hydration reaction system, and the heat that hydration reaction is released is not easy
It sheds and persistently increases, the chemical reaction of similar production cement occurs for the ingredient in soil and reaction product and water continue that aquation occurs
Reaction forms gelinite, keeps other ingredients in concrete cemented together securely, to substantially increase the anti-of concrete
Tensile strength due to from a wealth of sources, the materials convenience of soil, and limits without the place of production, substantially reduces the cost of material of concrete, save
Manpower and material resources reduce pollution and destruction to environment;Iron content polypropylene fibre is uniform by iron powder in concrete component of the present invention
It is dispersed in the polyacrylic polymer of melting, is obtained by squeezing spinneret, since the iron in iron content polypropylene fibre uniformly wraps up
It in polyacrylic polymer, avoids and gets rusty, after concrete reaches service life, magnet can be used by iron content polypropylene fibre
It is separated from broken concrete waste material, re-starts melted extrusion modeling and obtain new iron content polypropylene fibre, and
Remaining concrete waste material, which can be re-used as, to be prepared the raw material of novel concrete and is recycled, and the production of construction waste is avoided
It is raw, improve the service efficiency of concrete.
Above-mentioned a kind of ultra-fine earth concrete, which is characterized in that the soil is gravelly soil, in sand, silt, cohesive soil
It is one or more kinds of.It selects common gravelly soil, sand, silt, cohesive soil as raw material, and two or more soil need to only be mixed
Conjunction, no ratio requirement shorten classification and weigh technique, are conducive to the exploitation of soil, and above-mentioned native source distribution is extensive, native
It takes conveniently.
Above-mentioned a kind of ultra-fine earth concrete, which is characterized in that be made of the component of following mass fraction: soil 810~
2290 parts, 149~448 parts of cement, 82.6~332 parts of flyash, 49.4~200 parts of silicon ash, concrete regenerant 40~100
Part, 0.1~200 part of iron content polypropylene fibre, 5~148 parts of quick lime mountain flour, 3~100 parts of iron powder, 318~827 parts of water.Addition
Quick lime mountain flour and iron powder help to improve the tensile strength of concrete.
Above-mentioned a kind of ultra-fine earth concrete, which is characterized in that the silicon ash is unformed spherical particle, SiO in silicon ash2
Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g.Pass through SiO in limitation silicon ash2Mass content and
Specific surface area improves the reactivity of silicon ash, and uses the silicon ash of unformed spherical particle, is guaranteeing the same of its reactivity
When, the hole being filled between inside concrete other materials particle improves the compactness of concrete, further improves mixed
Coagulate the intensity of soil.
A kind of above-mentioned ultra-fine earth concrete, which is characterized in that the mass content of the iron in the iron content polypropylene fibre
It is 0.1%~3%, the diameter of the iron content polypropylene fibre is 0.2mm~2.5mm, and length is 10mm~35mm, iron content poly- third
The tensile strength of alkene fiber is greater than 400MPa.Iron content polypropylene fibre specification and tensile strength are limited within the above range, both
The bonding capacity for improving other active materials in iron content polypropylene fibre and concrete, improves the tensile strength of concrete,
Reduce the influence to mixing and stirring again, is conducive to the preparation of concrete.
Above-mentioned a kind of ultra-fine earth concrete, which is characterized in that the main component of the concrete regenerant is isoamyl two
Alkenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, acrylic acid, methallyl
Base polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sodium hydrogensulfite.Concrete is again
Raw agent promotes the evenly dispersed of the powder body materials such as native and cement, flyash, silicon ash in concrete component, avoids powder material
Material condensation is agglomerating, forms the concrete mortar with certain viscosity and fluidity after adding water;The concrete regenerant has simultaneously
Certain water-reduction, reduces the number of water in concrete component, to improve the compactness of concrete, reduces inside
Distribution of pores, and then improve the intensity of concrete.
Above-mentioned a kind of ultra-fine earth concrete, which is characterized in that the flyash is I grade of flyash or II grade of flyash.
The fineness of flyash is controlled by limiting flyash rank, it is ensured that flyash is sufficiently mixed uniformly and has with other powder body material
Enough reactivities participate in the chemical reaction in concrete.
Above-mentioned a kind of ultra-fine earth concrete, which is characterized in that the partial size of the quick lime mountain flour is less than 100 μm;It is described
Iron powder is the black particle that partial size is less than 150um.It is enough that partial size by limiting quick lime mountain flour ensures that quick lime mountain flour has
Reactivity, participate in concrete in hydration reaction;Partial size by limiting iron powder ensures that iron powder is lived with enough reactions
Property, it is easier to participate in the hydration reaction in concrete.
In addition, the present invention also provides a kind of preparation methods of ultra-fine earth concrete, which is characterized in that this method include with
Lower step:
Step 1: soil is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by ultra-fine soil, cement, fine coal
It is stirred evenly after ash, silicon ash, agstone and iron powder mixing, then is uniformly added into iron content polypropylene fibre under stirring conditions,
It stirs again, obtains mixture;
It is uniformly mixing to obtain mixed solution Step 2: concrete regenerant is added to the water, then adds mixed solution
Enter and stirred into mixture obtained in step 1, obtains concrete slurry;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
18h~demould afterwards for 24 hours is stood after floating at room temperature, then carries out health.
Preparation process of the invention predominantly stirring, molding and health, are the conventional fabrication process of concrete, to equipment
Without extra demand, it is easy to accomplish, it is suitable for large-scale industrial production.
Above-mentioned method, which is characterized in that the condition of health described in step 3 are as follows: in 85 DEG C~95 DEG C of steam condition
Lower health is taken out after 3~5 days and is cooled down at room temperature, or takes out after health 5 days in room under 40 DEG C~60 DEG C of water bath condition
Middle benefit gas is cooling, or concrete is sprayed water at room temperature moisture-keeping maintaining 5 days.Supporting in the preparation method of concrete of the present invention
Raw process is in steam condition, water bath condition or under room temperature can be achieved, wherein water bath condition or health under room temperature
Initial heat of the heat released by hydrated reaction of cement as the chemical reaction between active component in concrete, and steam
Under the conditions of chemical reaction of the health between active component in concrete provide initial heat, and put with hydrated reaction of cement
Heat out collectively promotes the lasting progress of the chemical reaction between active component, further promotes filling for active component reaction
Divide degree, shorten the time of reaction, the intensity for the concrete that three kinds of health-preserving conditions are prepared can meet road use and brickmaking
Requirement.
The iron content polypropylene fibre in the present invention can be adsorbed by magnet.
Compared with the prior art, the present invention has the following advantages:
1, the present invention is less than the soil of 1mm as the primary raw material of concrete component, due to the master of soil using 90% or more partial size
Want mineralogical composition for 40%~70% quartz of mass percent, 20%~40% silicate and 5%~10% carbonate, it is quartzy
Main chemical compositions are SiO2, main group of silicate is as feldspar, main chemical compositions SiO2、Al2O3、K2O、Fe2O3、
Na2Main group of O and CaO, carbonate becomes calcite and dolomite, wherein the main chemical compositions CaCO of calcite3In contain
56% or so CaO, in dolomite containing 30% or so CaO, when partial size is less than 1mm after the ground crushing of soil, block-like soil
Pulverized, the single mineral grain or granule for forming the soil body are exposed, the quartz, feldspar, calcite and dolomite in soil
Partial size mostly in 100um hereinafter, have the granularity condition for participating in active reaction, ingredient and partial size with the chemistry of cement slurry
Ingredient is consistent with partial size, and after the cement in concrete material is mixed with water, water occurs for various chemical components and water in cement
Change reaction, generates the chemical combination such as hydrated calcium silicate, hydrated calcium ferrite gel, calcium hydroxide, drated calcium aluminate and hydrated calcium aluminate sulfate
Object, and release heat and the temperature inside hydration reaction system is made to reach 300 DEG C or so, further promote local hydration reaction
Progress, while the concrete regenerant in concrete material is wrapped up in and is attached to around hydration reaction system, what hydration reaction was released
Heat is not easy to shed, and the constant temperature in hydration reaction system increases, chemical component master under conditions of continuous high temperature, in soil
The chemical reaction of following similar production cement: CaCO occurs3=CaO+CO2, SiO2+ CaO=CaSiO3, SiO2+Na2CO3=
Na2SiO3+CO2, reaction product and water continues hydration reaction occurs to form gelinite, makes other ingredients in concrete securely
It is cemented together, so that the tensile strength of concrete is substantially increased, due to from a wealth of sources, the materials convenience of soil, and without the place of production
Limitation, substantially reduces the cost of material of concrete, saves manpower and material resources, reduce pollution and destruction to environment.
2, the present invention using iron content polypropylene fibre as concrete component, and by iron content polypropylene fibre specification and tension
Intensity is limited in a certain range, has both improved the bonding capacity of other active materials in iron content polypropylene fibre and concrete,
The tensile strength of concrete is improved, and reduces the influence to mixing and stirring, is conducive to the preparation of concrete;In addition, due to iron content
Iron in polypropylene fibre is uniformly wrapped in polypropylene, is avoided and is got rusty, and after concrete reaches service life, magnetic can be used
Iron separates iron content polypropylene fibre from broken concrete waste material, re-start melted extrusion modeling obtain it is new
Iron content polypropylene fibre, remaining concrete waste material, which can be re-used as, to be prepared the raw material of novel concrete and is recycled, and is avoided
The generation of construction waste, improves the service efficiency of concrete.
3, the main component of silicon ash is SiO in concrete component of the present invention2, part little particle is rapid after silicon ash is mixed with water
Dissolution, and the hydrated reaction product Ca (OH) with cement2Reaction generates C-S-H gel, is filled in the pore structure of concrete,
Improve the intensity and durability of concrete;The main component of flyash is SiO in concrete component2And Al2O3, silicon ash and powder
Coal ash simultaneously is easy when depositing to generate mullite phase, improves the elevated temperature strength of concrete, so with hydrated reaction product Ca (OH)2Hair
Raw secondary reaction of hydration forms gelled product, and is filled in the pore structure of concrete, improves the microstructure of concrete simultaneously
Improve the mechanical property and durability of concrete;In addition, significantly improving concrete since silicon ash is prepattern spheric granules
Rheological property, and the soil in concrete component grind after no longer show the bones of quartz particles in prior art concrete
Frame effect, but serve as the active component of concrete together with cement, silicon ash, flyash, in the exothermic induction item of hydration reaction
It reacts under part, exothermic heat of reaction continues to promote the progress of the reaction, ultimately forms the gelinite of compact structure, further increases
The tensile strength of concrete.
4, the iron content polypropylene fibre in concrete material component of the present invention is dispersed in concrete, and by concrete
The gelinite tight that internal chemical reaction generates, enhances the active force between gelinite, further improves concrete
Tensile strength;And the main component of agstone is CaO, exothermic reaction can be occurred and generate Ca (OH) by meeting water2Participate in silicon ash
Secondary reaction of hydration, iron powder, which meets water, can also occur exothermic reaction, and both as the inducer of spontaneous heating, the heat of releasing is induced
And promote reaction between soil, silicon ash, flyash and cement isoreactivity component, accelerate the growth rate of concrete strength, and promote
The abundant degree reacted into active component, improves the compactness extent of gelinite, and another step improves the tensile strength of concrete;Separately
Outside, agstone has certain lubricity, has helped to improve the rheological property of concrete.
5, the soil in concrete component of the invention be one or both of gravelly soil, sand, silt, cohesive soil with
On, and to it is two or more soil only need to mix, no ratio requirement, it is above-mentioned soil source distribution it is extensive, take conveniently, can scene apply
Work, and directly smashed and ground by crusher or cutter etc. to required size grading after drawing materials, treatment process is simple, further
Reduce the cost of material of concrete.
6, concrete regenerant of the invention promotes the powders such as soil and cement, flyash, silicon ash in concrete component
Material it is evenly dispersed, it is agglomerating to avoid powder body material condensation, adds the concrete for being formed after water and having certain viscosity and fluidity
Slurry;The concrete regenerant has certain water-reduction simultaneously, reduces the number of water in concrete component, to improve
The compactness of concrete reduces internal void distribution, and then improves the intensity of concrete.
7, ultra-fine earth concrete of the invention reduces the usage amount of cement, builds to reduce using soil as primary raw material
The exploitation for building building stones further reduced cost of material, and also reduce the destruction to massif environment, reduce cement preparation
Energy consumption and carbon emission amount in the process, it is environmentally protective.
8, the health process in the preparation method of concrete of the present invention steam condition, water bath condition or under room temperature
It can be achieved, wherein the heat that water bath condition or health under room temperature are released by hydrated reaction of cement is as in concrete
The initial heat of chemical reaction between active component, and the health under steam condition is the change in concrete between active component
It learns reaction and provides initial heat, and the heat released with hydrated reaction of cement collectively promotes the chemical reaction between active component
Lasting progress, further promote active component reaction abundant degree, shorten the time of reaction, three kinds of health-preserving condition systems
The intensity of standby obtained concrete can meet the requirement of ultra-fine earth concrete.
9, the concrete that the present invention is prepared is had excellent performance, and 7 days compression strength is not less than 22MPa, 7 days anti-foldings
Intensity is not less than 4.31MPa, meets the requirement of JTG D40-2011 " highway cement concrete pavement design specification ";Using
The concrete that the present invention is prepared prepares concrete brick, and " GB5101-2003 sintering is general for the tensile strength satisfaction of the concrete brick
Logical brick " and two blind headers overlapping in " GBT2542-2012 Test methods for wall bricks " rule of the compression strength greater than 10MPa
It is fixed, alternative existing fired brick.
10, for the service life for the concrete that the present invention is prepared up to 20 years, the concrete after reaching service life could
Again it is crushed and isolates iron content polypropylene fibre, required size grading is then ground to, due to its main chemical component base
This is constant, therefore still can be used as the raw material components of concrete, prepares concrete progress after the raw materials such as cement, flyash, silicon ash are added
It is recycled, avoids the generation of construction waste, improve the service efficiency of concrete.
11, preparation method of the invention is simple, not high to equipment requirement, it is easy to accomplish, it is suitable for large-scale industrial production.
Below by drawings and examples, the present invention is described in further detail.
Detailed description of the invention
Fig. 1 is the micro-structure diagram of loess in 1~embodiment of the embodiment of the present invention 8.
Fig. 2 is the microcosmic mineral structure characteristic pattern of loess in 1~embodiment of the embodiment of the present invention 8.
Fig. 3 is the microstructure characteristic figure for the concrete being prepared in the embodiment of the present invention 8.
Fig. 4 is the microstructure characteristic figure for the concrete being prepared in the embodiment of the present invention 9.
Specific embodiment
Embodiment 1
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1500 parts of loess, 42.5 ordinary silicons
400 parts of acid salt cement, I grade 310 parts of flyash, 195 parts of silicon ash, 66 parts of concrete regenerant, 100 parts of iron content polypropylene fibre,
463 parts of water;The loess is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm, and the silicon ash is unformed spherical particle,
SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g;The master of the concrete regenerant
Wanting ingredient is prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, third
Olefin(e) acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sulfurous acid
Hydrogen sodium;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret,
The mass content of iron in the iron content polypropylene fibre is 0.1%, the diameter of the iron content polypropylene fibre be 0.2mm~
0.6mm, length are 10mm~35mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 1500 parts of loess, 400 parts
It is stirred evenly after 42.5 ordinary portland cements, 310 parts of I grade of flyash and 195 parts of silicon ash mixing, then under stirring conditions
100 parts of iron content polypropylene fibres of even addition, then stir, obtain mixture;
It is uniformly mixing to obtain mixed solution Step 2: 66 parts of concrete regenerants are added in 463 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: moisturizing of spraying water at room temperature
Maintenance is taken out after 5 days and is cooled down at room temperature.
Embodiment 2
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1300 parts of loess, 42.5 ordinary silicons
243 parts of acid salt cement, I grade 200 parts of flyash, 147 parts of silicon ash, 80 parts of concrete regenerant, 80 parts of iron content polypropylene fibre, water
318 parts;The loess is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;The silicon ash is unformed spherical particle, silicon
SiO in ash2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g;The concrete regenerant it is main
Ingredient is prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, propylene
Acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and bisulfite
Sodium;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret, institute
The mass content for stating the iron in iron content polypropylene fibre is 0.7%, and the diameter of the iron content polypropylene fibre is 0.2mm~1mm,
Length is 10mm~35mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 1300 parts of ultra-fine soil, 243
It is stirred evenly after 42.5 ordinary portland cements of part, 200 parts of I grade of flyash and 147 parts of silicon ashes mixing, then in the condition of stirring
Under be uniformly added into 80 parts of iron content polypropylene fibres, then stir, obtain mixture;
It is uniformly mixing to obtain mixed solution Step 2: 80 parts of concrete regenerants are added in 318 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: moisturizing of spraying water at room temperature
Maintenance is taken out after 5 days and is cooled down at room temperature.
Embodiment 3
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1500 parts of loess, 42.5 ordinary silicons
380 parts of acid salt cement, I grade 230 parts of flyash, 180 parts of silicon ash, 62 parts of concrete regenerant, 100 parts of iron content polypropylene fibre,
498 parts of water;The loess is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;The silicon ash is unformed spherical particle,
SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g;The master of the concrete regenerant
Wanting ingredient is prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, third
Olefin(e) acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sulfurous acid
Hydrogen sodium;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret,
The mass content of iron in the iron content polypropylene fibre is 0.7%, the diameter of the iron content polypropylene fibre be 0.2mm~
0.5mm, length are 12mm~17mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 1500 parts of ultra-fine soil, 380
It is stirred evenly after 42.5 ordinary portland cements of part, 230 parts of I grade of flyash and 180 parts of silicon ashes mixing, then under stirring conditions
100 parts of iron content polypropylene fibres are uniformly added into, stirs, obtains mixture;
It is uniformly mixing to obtain mixed solution Step 2: 62 parts of concrete regenerants are added in 498 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 40 DEG C~60 DEG C of water-bath item
Health is taken out after 5 days and is cooled down at room temperature under part.
Embodiment 4
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1500 parts of loess, 42.5 ordinary silicons
400 parts of acid salt cement, I grade 300 parts of flyash, 200 parts of silicon ash, 62 parts of concrete regenerant, 0.1 part of iron content polypropylene fibre,
483 parts of water;The loess is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;The silicon ash is unformed spherical particle,
SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g;The master of the concrete regenerant
Wanting ingredient is prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, third
Olefin(e) acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sulfurous acid
Hydrogen sodium;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret,
The mass content of iron in the iron content polypropylene fibre is 0.7%, the diameter of the iron content polypropylene fibre be 0.2mm~
0.5mm, length are 12mm~17mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 1500 parts of ultra-fine soil, 400
It is stirred evenly after 42.5 ordinary portland cements of part, 300 parts of I grade of flyash and 200 parts of silicon ashes mixing, then under stirring conditions
It is uniformly added into 0.1 part of iron content polypropylene fibre, stirs, obtains mixture;
It is uniformly mixing to obtain mixed solution Step 2: 62 parts of concrete regenerants are added in 483 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
Embodiment 5
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 2290 parts of loess, 42.5 ordinary silicons
273 parts of acid salt cement, I grade 82.6 parts of flyash, 195 parts of silicon ash, 100 parts of concrete regenerant, iron content polypropylene fibre 100
Part, 600 parts of water;The loess is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;The silicon ash is unformed spherical
, SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g;The concrete regenerant
Main component be that prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, sulfuric acid are sub-
Iron, acrylic acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and
Sodium hydrogensulfite;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is sprayed by squeezing
Silk obtains, and the mass content of the iron in the iron content polypropylene fibre is 0.7%, and the diameter of the iron content polypropylene fibre is
0.2mm~0.6mm, length are 12mm~17mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 2290 parts of ultra-fine soil, 273
It is stirred evenly after 42.5 ordinary portland cements of part, 82.6 parts of I grade of flyash and 195 parts of silicon ashes mixing, then in the item of stirring
It is uniformly added into 100 parts of iron content polypropylene fibres under part, then stirs, obtains mixture;
It is uniformly mixing to obtain mixed solution Step 2: 100 parts of concrete regenerants are added in 600 parts of water, then will
Mixed solution is added in mixture obtained in step 1 and stirs, and obtains concrete slurry;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
Embodiment 6
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1800 parts of loess, 32.5 ordinary silicons
149 parts of acid salt cement, I grade 332 parts of flyash, 200 parts of silicon ash, 40 parts of concrete regenerant, 100 parts of iron content polypropylene fibre,
827 parts of water;The loess is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;The silicon ash is unformed spherical particle,
SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g;The master of the concrete regenerant
Wanting ingredient is prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, third
Olefin(e) acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sulfurous acid
Hydrogen sodium;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret,
The mass content of iron in the iron content polypropylene fibre is 0.7%, the diameter of the iron content polypropylene fibre be 0.6mm~
1.5mm, length are 12mm~17mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 1800 parts of ultra-fine soil, 149
It is stirred evenly after 32.5 ordinary portland cements of part, 332 parts of I grade of flyash and 200 parts of silicon ashes mixing, then under stirring conditions
100 parts of iron content polypropylene fibres are uniformly added into, stirs, obtains mixture;
It is uniformly mixing to obtain mixed solution Step 2: 40 parts of concrete regenerants are added in 827 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It is demoulded after standing 18h at room temperature after floating, then carries out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
Embodiment 7
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1500 parts of loess, 52.5 ordinary silicons
400 parts of acid salt cement, I grade 310 parts of flyash, 195 parts of silicon ash, 50 parts of quick lime mountain flour, 10 parts of iron powder, concrete regenerant 66
Part, 100 parts of iron content polypropylene fibre, 463 parts of water;The loess is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;Institute
Stating silicon ash is unformed spherical particle, SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than
15m2/g;The main component of the concrete regenerant is prenyl polyoxyethylene ether, hydrogen peroxide, three ethoxy of vinyl
Base silane, sodium hydroxide, ferrous sulfate, acrylic acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, sulfydryl
Acetic acid, branching surface-active macromonomer and sodium hydrogensulfite;The partial size of the quick lime mountain flour is less than 100 μm;The iron powder is partial size
Black particle less than 150um;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is led to
Extruding spinneret is crossed to obtain, the mass content of the iron in the iron content polypropylene fibre is 3%, the iron content polypropylene fibre it is straight
Diameter is 0.2mm~0.6mm, and length is 12mm~35mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 1500 parts of ultra-fine soil, 400
After 42.5 ordinary portland cements of part, 310 parts of I grade of flyash, 195 parts of silicon ashes, 50 parts of quick lime mountain flours and 10 parts of iron powders mixing
It stirs evenly, then is uniformly added into 100 parts of iron content polypropylene fibres under stirring conditions, stir, obtain mixture;
It is uniformly mixing to obtain mixed solution Step 2: 66 parts of concrete regenerants are added in 463 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It is demoulded after standing 20h at room temperature after floating, then carries out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
Embodiment 8
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1000 parts of loess, 42.5 ordinary silicons
448 parts of acid salt cement, I grade 82.6 parts of flyash, 49.4 parts of silicon ash, 49 parts of concrete regenerant, 5 parts of quick lime mountain flour, iron powder 3
Part, 100 parts of iron content polypropylene fibre, 318 parts of water;The loess is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;Institute
Stating silicon ash is unformed spherical particle, SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than
15m2/g;The main component of the concrete regenerant is prenyl polyoxyethylene ether, hydrogen peroxide, three ethoxy of vinyl
Base silane, sodium hydroxide, ferrous sulfate, acrylic acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, sulfydryl
Acetic acid, branching surface-active macromonomer and sodium hydrogensulfite;The iron content polypropylene fibre is dispersed in poly- the third of melting by iron powder
It in alkene polymer, is obtained by squeezing spinneret, the mass content of the iron in the iron content polypropylene fibre is 0.7%, described to contain
The diameter of iron polypropylene fibre is 0.2mm~0.3mm, and length is 12mm~35mm, and the tensile strength of iron content polypropylene fibre is big
In 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 1000 parts of ultra-fine soil, 448
After 42.5 ordinary portland cements of part, 82.6 parts of I grade of flyash, 5 parts of quick lime mountain flours, 3 parts of iron powders and 49.4 parts of silicon ashes mixing
It stirs evenly, is then uniformly added into 100 parts of iron content polypropylene fibres under stirring conditions, then stir, is mixed
Close object;
It is uniformly mixing to obtain mixed solution Step 2: 49 portions of solidifying native regenerative agents are added in 318 parts of water, it then will mixing
Solution is added in mixture obtained in step 1 and stirs, and obtains concrete slurry;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
Fig. 1 is the micro-structure diagram of loess in 1~embodiment of the embodiment of the present invention 8, it will be seen from figure 1 that loess is micro-
The partial size for seeing individual particle in structure is respectively less than 100 μm, and the partial size of most of individual particle is respectively less than 50 μm, but individual particle
It is condensed into biggish crumb structure, does not have the granularity condition for participating in active reaction, active reaction can not be participated in.
Fig. 2 is the microcosmic mineral structure characteristic pattern of loess in 1~embodiment of the embodiment of the present invention 8, figure it is seen that
Quartzy content is most in the main mineral constituent of loess, followed by silicate mineral (mainly feldspar) and carbonate mineral
(mainly calcite and dolomite), quartzy main chemical compositions are SiO2, the main chemical compositions of feldspar are SiO2、
Al2O3、K2O、Fe2O3、Na2O and CaO, the main chemical compositions CaCO of calcite3In containing 56% or so CaO, in dolomite
Contain 30% or so CaO.
Fig. 3 is the microstructure characteristic figure for the concrete that the present embodiment is prepared, from figure 3, it can be seen that the present embodiment
The microstructure even compact for the concrete being prepared, there is C-S-H gelinites in structure.
Fig. 2 and Fig. 3, which are compared, can be seen that using loess of the partial size less than 1mm for being ground to 90% as raw material, and water is added
The cementitious materials such as mud, flyash, silicon ash prepare concrete, and the small mineral grain in loess serves as activity together with cementitious material
Ingredient carries out reaction and forms fine and close hydrated calcium silicate C-S-H gelinite, to obtain high-intensitive concrete, illustrates that loess passes through
After grinding, block-like loess is pulverized, and the single mineral grain or granule for forming the soil body are exposed, quartz, length in loess
The partial size of stone, calcite and dolomite mostly in 100um hereinafter, have participate in active reaction granularity condition, can participate in work
Property reaction, effectively increase the intensity of concrete.
Embodiment 9
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1600 parts of red clay, 42.5 is common
330 parts of portland cement, I grade 280 parts of flyash, 200 parts of silicon ash, 68 parts of concrete regenerant, 80 parts of iron content polypropylene fibre,
483 parts of water;The red clay is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm;The silicon ash is unformed spherical
, SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g;The concrete regenerant
Main component be that prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, sulfuric acid are sub-
Iron, acrylic acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and
Sodium hydrogensulfite;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is sprayed by squeezing
Silk obtains, and the mass content of the iron in the iron content polypropylene fibre is 0.7%, and the diameter of the iron content polypropylene fibre is
0.6mm~2.5mm, length are 12mm~35mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: by red clay be ground to 90% or more partial size be less than 1mm ultra-fine soil, then by 1600 parts it is ultra-fine soil,
It is stirred evenly after 330 part of 42.5 ordinary portland cement, 280 parts of I grade of flyash and 200 parts of silicon ash mixing, then in stirring
Under the conditions of be uniformly added into 80 parts of iron content polypropylene fibres, then stir, obtain mixture;
It is uniformly mixing to obtain mixed solution Step 2: 68 parts of concrete regenerants are added in 483 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
Fig. 4 is the microstructure characteristic figure for the concrete that the present embodiment is prepared, from fig. 4, it can be seen that the present embodiment
The microstructure even compact for the concrete being prepared, it is red glutinous less than 1mm to be ground to 90% partial size to illustrate the present invention
Soil is raw material, and the cementitious materials such as cement, flyash, silicon ash are added and prepare concrete, the small mineral grain in red clay participates in
Active reaction forms fine and close structure, to improve the intensity of concrete, and SiO2With Al2O3And it is easy to generate when depositing and not come
Shi Xiang, further improves the intensity of concrete, and with hydrated reaction product Ca (OH)2Secondary reaction of hydration occurs and forms aquation
Calcium silicates C-S-H gelinite, is filled in the pore structure of concrete, improves the microstructure of concrete and improves concrete
Mechanical property and durability.
Embodiment 10
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1600 parts of sand, 42.5 ordinary silicons
300 parts of acid salt cement, I grade 332 parts of flyash, 150 parts of silicon ash, 63 parts of concrete regenerant, 80 parts of iron content polypropylene fibre, water
481 parts;The sand be ground to 95% partial size be less than 1mm;The silicon ash is unformed spherical particle, SiO in silicon ash2's
Mass content is not less than 83%, SiO2Specific surface area be not less than 15m2/g;The main component of the concrete regenerant is isoamyl
Dialkylene polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, acrylic acid, first are for alkene
Propyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sodium hydrogensulfite;It is described to contain
Iron polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret, the iron content is poly-
The mass content of iron in tacryl is 0.7%, and the diameter of the iron content polypropylene fibre is 0.2mm~0.3mm, and length is
The tensile strength of 19mm~25mm, iron content polypropylene fibre are greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: sand is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 1600 parts of ultra-fine soil, 300
It is stirred evenly after 42.5 ordinary portland cements of part, 332 parts of I grade of flyash and 150 parts of silicon ashes mixing, then in the condition of stirring
Under be uniformly added into 80 parts of iron content polypropylene fibres, then stir, obtain mixture;
It is uniformly mixing to obtain mixed solution Step 2: 63 parts of concrete regenerants are added in 481 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
Embodiment 11
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 810 parts of gravelly soil, 42.5 ordinary silicons
448 parts of acid salt cement, I grade 332 parts of flyash, 200 parts of silicon ash, 148 parts of quick lime mountain flour, 100 parts of iron powder, concrete regenerant
50 parts, 200 parts of iron content polypropylene fibre, 469 parts of water;The gravelly soil is to be ground to 90% or more partial size to be less than the ultra-fine of 1mm
Soil;The silicon ash is unformed spherical particle, SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area it is not small
In 15m2/g;The main component of the concrete regenerant is prenyl polyoxyethylene ether, hydrogen peroxide, three second of vinyl
Oxysilane, sodium hydroxide, ferrous sulfate, acrylic acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, mercapto
Guanidine-acetic acid, branching surface-active macromonomer and sodium hydrogensulfite;For the partial size of the quick lime mountain flour less than 100 μm, the iron powder is grain
Diameter is less than the black particle of 150um;The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder,
It is obtained by squeezing spinneret, the mass content of the iron in the iron content polypropylene fibre is 0.7%, the iron content polypropylene fibre
Diameter be 0.2mm~0.5mm, length is 12mm~35mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: by gravelly soil be ground to 90% or more partial size be less than 1mm ultra-fine soil, then by 810 parts it is ultra-fine soil,
448 part of 42.5 ordinary portland cement, 332 parts of I grade of flyash, 200 parts of silicon ashes, 148 parts of quick lime mountain flours and 100 parts of iron powders are mixed
It is stirred evenly after conjunction, is then uniformly added into 200 parts of iron content polypropylene fibres under stirring conditions, then stir, obtains
To mixture;
It is uniformly mixing to obtain mixed solution Step 2: 50 parts of concrete regenerants are added in 469 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
Embodiment 12
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1500 parts of composite soil, 42.5 is common
400 parts of portland cement, I grade 310 parts of flyash, 195 parts of silicon ash, 66 parts of concrete regenerant, iron content polypropylene fibre 100
Part, 463 parts of water;The composite soil is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm, and the composite soil is by 700 parts of Huangs
Soil and 800 parts of red clays mix;The silicon ash is unformed spherical particle, SiO in silicon ash2Mass content be not less than
83%, SiO2Specific surface area be not less than 15m2/g;The main component of the concrete regenerant is prenyl polyoxyethylene
Ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, acrylic acid, methylallyl polyethylene glycol are big
Monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sodium hydrogensulfite;The iron content polypropylene fibre by
Iron powder is dispersed in the polyacrylic polymer of melting, is obtained by squeezing spinneret, the iron in the iron content polypropylene fibre
Mass content be 0.7%, the diameter of the iron content polypropylene fibre is 0.2mm~0.3mm, and length is 12mm~35mm, is contained
The tensile strength of iron polypropylene fibre is greater than 400MPa.
Composite soil in the present embodiment can also mix for loess and sand, and loess and gravelly soil mix, red glutinous
Soil and sand mix, and red clay and gravelly soil mix or sand and gravelly soil mix.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess and red clay are ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by 700 parts of Huangs
Soil it is ultra-fine soil and 800 parts of red clays it is ultra-fine soil mix after with 400 part of 42.5 ordinary portland cement, 310 parts of I grade of flyash and
It is stirred evenly after 195 parts of silicon ash mixing, then is uniformly added into 100 parts of iron content polypropylene fibres under stirring conditions, be sufficiently stirred
Uniformly, mixture is obtained;
It is uniformly mixing to obtain mixed solution Step 2: 66 parts of concrete regenerants are added in 463 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 3 days and is cooled down at room temperature under part.
Embodiment 13
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1600 parts of composite soil, 42.5 is common
310 parts of portland cement, I grade 240 parts of flyash, 100 parts of silicon ash, 60 parts of concrete regenerant, iron content polypropylene fibre 100
Part, 523 parts of water;The composite soil is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm, and the composite soil is by 500 parts of Huangs
Soil, 500 parts of red clays and 600 parts of gravelly soils mix;The silicon ash is unformed spherical particle, SiO in silicon ash2Quality
Content is not less than 83%, SiO2Specific surface area be not less than 15m2/g;The main component of the concrete regenerant is isoprene
Base polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, acrylic acid, methylallyl
Polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sodium hydrogensulfite;The iron content is poly-
Tacryl is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret, the iron content polypropylene
The mass content of iron in fiber is 0.8%, and the diameter of the iron content polypropylene fibre is 0.2mm~0.3mm, length 12mm
The tensile strength of~17mm, iron content polypropylene fibre are greater than 400MPa.
The composite soil of the present embodiment can also mix for loess, red clay and sand, loess, gravelly soil and sand mixing
It forms or red clay, sand and gravelly soil mixes.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess, red clay and gravelly soil are ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then will
500 parts of loess it is ultra-fine soil, 500 parts of red clays it is ultra-fine soil and 600 parts of gravelly soils it is ultra-fine soil mixing after with 310 part of 42.5 common silicic acid
It is stirred evenly after salt cement, 240 parts of I grade of flyash and 100 parts of silicon ash mixing, then is uniformly added into 100 parts under stirring conditions
Iron content polypropylene fibre, stirs, and obtains mixture;
It is uniformly mixing to obtain mixed solution Step 2: 60 parts of concrete regenerants are added in 523 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 4 days and is cooled down at room temperature under part.
Embodiment 14
The ultra-fine earth concrete of the present embodiment is made of the component of following mass fraction: 1500 parts of composite soil, 42.5 is common
380 parts of portland cement, II grade 280 parts of flyash, 120 parts of silicon ash, 60 parts of concrete regenerant, iron content polypropylene fibre 100
Part, 490 parts of water;The composite soil is the ultra-fine soil for being ground to 90% or more partial size and being less than 1mm, and the composite soil is by 400 parts of Huangs
Soil, 400 parts of red clays, 400 parts of gravelly soils and 300 parts of sands mix;The silicon ash is unformed spherical particle, in silicon ash
SiO2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g;The main component of the concrete regenerant
For prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, acrylic acid,
Methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and sodium hydrogensulfite;
The iron content polypropylene fibre is dispersed in the polyacrylic polymer of melting by iron powder, is obtained by squeezing spinneret, described
The mass content of iron in iron content polypropylene fibre is 0.7%, and the diameter of the iron content polypropylene fibre is 0.2mm~0.3mm,
Length is 12mm~35mm, and the tensile strength of iron content polypropylene fibre is greater than 400MPa.
The preparation method of the ultra-fine earth concrete of the present embodiment the following steps are included:
Step 1: loess, red clay, gravelly soil and sand are ground to the ultra-fine soil that 90% or more partial size is less than 1mm, so
The ultra-fine soil of 400 parts of loess, the ultra-fine soil of 400 parts of red clays, the ultra-fine soil of 400 parts of gravelly soils and the ultra-fine soil of 300 parts of sands are mixed afterwards
It stirs evenly, then is stirring after being mixed afterwards with 380 part of 42.5 ordinary portland cement, 280 parts of II grade of flyash and 120 parts of silicon ashes
Under conditions of be uniformly added into 100 parts of iron content polypropylene fibres, stir, obtain mixture;
It is uniformly mixing to obtain mixed solution Step 2: 60 parts of concrete regenerants are added in 490 parts of water, then will be mixed
Conjunction solution, which is added in mixture obtained in step 1, to be stirred, and concrete slurry is obtained;
Step 3: concrete slurry obtained in step 2 is poured into mold, then successively plugged and pounded and vibrated, is passed through
It stands after floating and demoulds afterwards for 24 hours at room temperature, then carry out health;The condition of the health are as follows: in 85 DEG C~95 DEG C of steam item
Health is taken out after 5 days and is cooled down at room temperature under part.
The performance for the concrete that 1~embodiment of embodiment 14 is prepared is detected, as a result as shown in table 1 below.
The performance for the concrete that 1 1~embodiment of embodiment 14 of table is prepared
As it can be seen from table 1 resistance to compressions in seven days of the concrete finished product being prepared in 1~embodiment of the embodiment of the present invention 14
Intensity is not less than 22MPa, reaches as high as 80MPa, flexural strength is not less than 4.31MPa within seven days, reaches as high as 22MPa, accords with
The requirement for closing JTG D40-2011 " highway cement concrete pavement design specification ", illustrate the concrete that is prepared of the present invention at
Product can be used for concrete pavement;Concrete brick is prepared using the concrete that the present invention is prepared, which resists
Tensile strength meets two blind headers in " GB5101-2003 fired common brick " and " GBT2542-2012 Test methods for wall bricks "
The compression strength of overlapping is greater than the regulation of 10MPa, illustrates that the concrete brick of the concrete being prepared with present invention preparation can replace
For existing fired brick.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way.It is all according to invention skill
Art any simple modification, change and equivalence change substantially to the above embodiments, still fall within technical solution of the present invention
Protection scope in.
Claims (10)
1. a kind of ultra-fine earth concrete, which is characterized in that be made of the component of following mass fraction: 810~2290 parts of soil, cement
149~448 parts, 82.6~332 parts of flyash, 49.4~200 parts of silicon ash, 40~100 parts of concrete regenerant, iron content polypropylene
0.1~200 part of fiber, 0~148 part of quick lime mountain flour, 0~100 part of iron powder, 318~827 parts of water;The soil is to be ground to
90% or more partial size is less than the ultra-fine soil of 1mm;The iron content polypropylene fibre is gathered by the polypropylene that iron powder is dispersed in melting
It closes in object, then obtained by squeezing spinneret.
2. a kind of ultra-fine earth concrete according to claim 1, which is characterized in that the soil is gravelly soil, sand, powder
One or more of soil, cohesive soil.
3. a kind of ultra-fine earth concrete according to claim 1, which is characterized in that by the component system of following mass fraction
At: 810~2290 parts of soil, 149~448 parts of cement, 82.6~332 parts of flyash, 49.4~200 parts of silicon ash, concrete regenerating
40~100 parts of agent, 0.1~200 part of iron content polypropylene fibre, 5~148 parts of quick lime mountain flour, 3~100 parts of iron powder, water 318~
827 parts.
4. a kind of ultra-fine earth concrete according to claim 1, which is characterized in that the silicon ash is unformed spherical
, SiO in silicon ash2Mass content be not less than 83%, SiO2Specific surface area be not less than 15m2/g。
5. a kind of ultra-fine earth concrete according to claim 1, which is characterized in that the iron in the iron content polypropylene fibre
Mass content be 0.1%~3%, the diameter of the iron content polypropylene fibre is 0.2mm~2.5mm, length be 10mm~
The tensile strength of 35mm, iron content polypropylene fibre are greater than 400MPa.
6. a kind of ultra-fine earth concrete according to claim 1, which is characterized in that the concrete regenerant it is main at
It is divided into prenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, propylene
Acid, methylallyl polyethylene glycol polymeric monomer, acrylic acid, ammonium persulfate, thioacetic acid, branching surface-active macromonomer and bisulfite
Sodium.
7. a kind of ultra-fine earth concrete according to claim 1, which is characterized in that the flyash be I grade of flyash or
II grade of flyash.
8. a kind of ultra-fine earth concrete according to claim 3, which is characterized in that the partial size of the quick lime mountain flour is less than
100μm;The iron powder is the black particle that partial size is less than 150um.
9. a kind of preparation method for preparing the ultra-fine earth concrete as described in any claim in claim 1~8, feature
It is, method includes the following steps:
Step 1: soil is ground to the ultra-fine soil that 90% or more partial size is less than 1mm, then by ultra-fine soil, cement, flyash, silicon
It is stirred evenly after ash, agstone and iron powder mixing, is then uniformly added into steel fibre under stirring conditions, then be sufficiently stirred
It is even, obtain mixture;
It is uniformly mixing to obtain mixed solution Step 2: concrete regenerant is added to the water, is then added to mixed solution
It is stirred in mixture obtained in step 1, obtains concrete slurry;
Step 3: concrete slurry obtained in step 2 is poured into mold, is then successively plugged and pounded and vibrated, through smoothing out
It stands 18h~demould afterwards for 24 hours at room temperature afterwards, then carries out health.
10. according to the method described in claim 9, it is characterized in that, the condition of health described in step 3 are as follows: 85 DEG C~95
DEG C steam condition under take out after health 3~5 days and cool down at room temperature, or the health 5 under 40 DEG C~60 DEG C of water bath condition
It takes out after it and cools down at room temperature, or concrete is sprayed water at room temperature moisture-keeping maintaining 5 days.
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