CN108424073A - A kind of high abrasion high-strength concrete and preparation method thereof - Google Patents
A kind of high abrasion high-strength concrete and preparation method thereof Download PDFInfo
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- CN108424073A CN108424073A CN201810267452.4A CN201810267452A CN108424073A CN 108424073 A CN108424073 A CN 108424073A CN 201810267452 A CN201810267452 A CN 201810267452A CN 108424073 A CN108424073 A CN 108424073A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/523—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing metal fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
- B28C5/402—Methods
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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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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- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of high abrasion high-strength concrete and preparation method thereof, according to the mass fraction, including 1058~1147 parts of cementitious material, 1120~1271 parts of quartz sand, 165~205 parts of steel fibre, 21.17~22.94 parts of water-reducing agent, 19.41~19.85 parts of antifoaming agent, 127.12~159.62 parts of 21.17~22.94 parts of alkali-activator, 33.71~36.53 parts of nitrites early strength agent and water.Under the action of alkali-activator, it is broken containing a large amount of Si O and Al O keys in cementitious material, SiO4And AlO4Tetrahedron Fast Stripping runs through bunching and reacts to form a large amount of inorganic polymers so that the early strength of concrete increases quickly, and nitrite to cement hydration process by playing catalytic action, to improve the early strength of high-strength concrete.Mixing of steel fiber improves the wear-resisting property of concrete.
Description
Technical field
The present invention relates to a kind of concrete, and in particular to a kind of high abrasion high-strength concrete and preparation method thereof.
Background technology
High-strength concrete has intensity, excellent endurance quality and the good working performance of superelevation, wear-resisting property
Also above general concrete.High abrasion high-strength concrete, which is widely applied, will overturn the design of current civil engineering structure, applies
Each field such as work.It is resistance to make high-performance, height by abrasive aggregates such as sintered bauxite, aluminium oxide ceramics for existing company of foreign countries
The concrete of mill, and it is applied to Practical Project.The raw material of currently used high-strength concrete include：Cement, silicon ash, levigate stone
Ying Fen, fine mineral admixture, quartz sand and high efficiency water reducing agent etc..
At present due to the restriction of High Temperature Curing system, high-strength concrete is generally used for prefabricated component, high-strength coagulation
The production of native prefabricated components will reach scale, need high-strength concrete to have early epistasis energy, in order to mold and curing pool
Quick cyclic utilization.But high-strength concrete early strength is often relatively low at present, striking time is longer, thus constrains list
Secondary member preparation time.Concrete early strength agent is to solve the problems, such as the early strong main method of concrete, now widely used coagulation
Native early strength agent includes：Villaumite, sulfate, nitrite and organic matter early strength agent etc. is single or composite high-early strength type additive.Outside
Add the use of agent that can pointedly improve the performance of concrete, be solve the problems, such as concrete technology of preparing effective means it
One.
Alkali-activator is the technical term of alkali-activated carbonatite cementitious material, and catalyst is called in chemistry.Generally refer to caustic alkali,
The substances such as silicate, aluminate, phosphate, sulfate, carbonate containing alkaline element.Alkali-activator passes through to high-strength concrete
Hydration reaction play catalytic action, to improve the early strength of high-strength concrete.Waterglass is as most widely used
Alkali-activator, purposes is very extensive, almost spreads each department of national economy.It is applied primarily to reinforce soil, leak stopping,
Joint filling etc. locally repairs, prepares acidproof cementitious material, prepares heat-resisting mortar, and New Type Silicate is referred to as meeting sustainable development
Environmentally protective mold casting adhesive.
Early strength agent is also referred to as accelerator, can according to chemical composition be divided into strong electrolyte inorganic salts, water soluble organic substance class, organic
Class and inorganic matter complex accelerator three classes.NO3-N and NO2-N by playing catalytic action to cement hydration process, to
Improve the early strength of high-strength concrete.These salts not only serve as the early strength agent component of concrete, and can conduct
Concrete antifreezer component uses.
The early epistasis of concrete, especially high-strength concrete can be the development of current concrete material research hotspot with it is important
Direction, and the general guide principle for selecting abrasion-proof concrete applicable is the compression strength of concrete, because it is to determine coagulation
The main factor of native wearability.Secondly, the abrasion resistance of cement paste is poor, therefore then majority takes the attrition resistance of concrete
Certainly in the hardness of aggregate used.It is therefore necessary to provide a kind of side for the early strength and its wear-resisting property that can improve concrete
Method.
Invention content
To overcome the problems of the prior art, the purpose of the present invention is to provide a kind of high abrasion high-strength concrete and its systems
Preparation Method improves the early strength and its wear-resisting property of high-strength concrete.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of high abrasion high-strength concrete, according to the mass fraction, including 1058~1183 parts of cementitious material, quartz sand 1120
~1271 parts, 0~200 part of steel fibre, 21.17~22.94 parts of water-reducing agent, 19.41~19.85 parts of antifoaming agent, alkali-activator
21.17~22.94 parts, 127.12~159.62 parts of 33.71~36.53 parts of nitrites early strength agent and water.
The present invention, which further improves, to be, 165~200 parts of steel fibre.
The present invention, which further improves, to be, 170~190 parts of steel fibre.
The present invention, which further improves, to be, 180~190 parts of steel fibre.
The present invention, which further improves, to be, the cementitious material by mass percentage, including cement 63.7%, silicon ash
15.9% and silica flour 20.4%；Wherein strength of cement is not less than 42.5 portland cements of P.O, SiO in silicon ash2Quality contains
Amount is not less than 92%；Silica flour grain size is not more than 325 mesh.
The present invention, which further improves, to be, the quartz sand is that mass ratio is 1:(0.46~0.47):(0.32~
0.33) mixture of rubble sand, middle quartz sand and fine quartz sand, wherein the grain size of rubble sand be 0.850~
The grain size of 0.425mm, middle quartz sand are 0.425~0.212mm, and the grain size of fine quartz sand is 0.212~0.125mm.
The present invention, which further improves, to be, the volume volume of the steel fibre is 0%~2.5%.
The present invention further improve is, the length of steel fiber be 11.7~14.3mm, a diameter of 0.17~
0.23mm, tensile strength >=2850Mpa.
The present invention, which further improves, to be, the water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The present invention, which further improves, to be, the nitrites early strength agent is Ca (NO2)2, and Ca (NO2)2Volume is
The 5%~8% of cement quality；The antifoaming agent is water-soluble antifoaming agent.
The present invention, which further improves, to be, the alkali-activator is the water glass solution of modulus 1.4.
The present invention, which further improves, to be, the water glass solution of the modulus 1.4 is by by the waterglass of modulus 3.0
It is mixed to prepare with NaOH, the water content mass percent of waterglass is 55%；NaOH purity >=99%；Alkali-activator accounts for gelling material
Expect that the percentage of quality is 2%.
A kind of preparation method of high abrasion high-strength concrete, includes the following steps：
1) component is weighed：According to the mass fraction, 1058~1183 parts of cementitious material of measurement, 1120~1271 parts of quartz sand,
0~200 part of steel fibre, 21.17~22.94 parts of water-reducing agent, 19.41~18.85 parts of antifoaming agent, alkali-activator 201.17~
22.94 parts, 127.12~159.62 parts of 33.71~36.53 parts of early strength agent and water；
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Alkali-activator is the water glass solution of modulus 1.4；
2) cement, silicon ash, silica flour and nitrite are poured into blender and is stirred evenly；
3) water, alkali-activator, antifoaming agent and water-reducing agent are added in blender and are stirred evenly, form cementitious material slurry
Body；
4) quartz sand and steel fibre are added in cementitious material slurry and are stirred evenly；Then, die-filling, it is torn open after 24 hours
Mould obtains test specimen；
5) test specimen is conserved, curing condition is：Room temperature conserves, and curing time is 28 days；60 DEG C of constant-temperature hot waters, maintenance
Time is 72 hours, obtains high abrasion high-strength concrete.
Compared with prior art, the device have the advantages that：
First, the present invention substantially reduces the presetting period of high-strength concrete, and make height due to mixing alkali-activator
Reinforced concrete has very high early strength, substantially reduces striking time, accelerates the cycle efficieny of concrete preparation；
Second, the present invention accelerates hydrated reaction of cement, promotes concrete early stage strong due to mixing nitrites early strength agent
The development of degree, and have the function of certain diminishing；
Third, present invention uses antifoaming agent, antifoaming agent can remove deleterious bubbles extra in high-strength concrete, be interior
Portion's structure is more closely knit, so as to improve the intensity and wear-resisting property of concrete.
4th, in terms of component, according to the mass fraction, cementitious material is 1058~1183 parts in the present invention, quartz sand
1120~1271 parts, 0~200 part of fiber, 21.17~22.94 parts of water-reducing agent, 19.41~19.85 parts of antifoaming agent, alkali-activator
21.17~22.94 parts, 127.12~159.62 parts of 33.71~36.53 parts of early strength agent and water.Water-cement ratio, that is, water consumption and glue
The mass ratio of gel material is to influence the principal element of High Strength Concrete Under Compressive Cyclic Loading intensity, and determine the most main of concrete abrasion-resistant
Want factor.With the increase of water-cement ratio, compression strength reduces, but high-strength mobility increases.High-strength concrete water-cement ratio is unsuitable
More than 0.20.The mass ratio of sand-binder ratio, that is, quartz sand and cementitious material, and influence High Strength Concrete Under Compressive Cyclic Loading intensity and wearability
Can principal element, between best value is 1.0~1.4, sand-binder ratio is excessive or the too small decline that can all lead to intensity.
5th, under the action of alkali-activator, it is broken containing a large amount of Si-O and Al-O keys in cementitious material, SiO4With
AlO4Tetrahedron Fast Stripping runs through bunching and reacts to form a large amount of inorganic polymers, so that concrete
Early strength increases quickly, achievees the effect that super hardening.
Further, under the action of nitrite, promote hydrated calcium silicate to generate, the aquation of cement, aquation can be improved
The pore structure of product makes mortar structure tend to be closely knit, plays the role of improving early strength, it may have certain antifreeze effect, and
Nitrite also has good resistance rust to act on.
Further, the present invention is based on maximal unit weight methods, realize gradation design to quartz sand so that high-strength concrete
It can fully be accumulated between each component, ensure that the superhigh intensity of high-strength concrete, while improve wear-resisting property.
Further, quartz sand includes the quartz sand of carse, medium and small three kinds of particle size ranges, and particle size range is respectively rubble English
0.850~0.425mm of sand (20~40 mesh), middle 0.425~0.212mm of quartz sand (40~70 mesh), fine quartz sand 0.212~
0.125mm (70~120 mesh), different-grain diameter quartz sand mass ratio is in three：Slightly：In：Carefully=1:0.46~0.47:0.32~
0.33, the quartz sand bulk density of three kinds of grain sizes reaches maximum under the ratio, and voidage is minimum, illustrates the quartz of three kinds of grain sizes
Sand realizes closestpacking, to ensure that the superhigh intensity and high-wear resistance of high-strength concrete.
Further, the fiber in the present invention is steel fibre, and steel fibre volume volume is 2%~2.5%；Steel fibre
Incorporation can be effectively improved the thin sight stress of concrete, so that it is more uniformly stressed, play the role of effective drawknot, to
The intensity of concrete can be effectively improved.Meanwhile the wearability and its surface dissolution iron ion of steel fibre itself can improve
The hardness of interfacial structure, and the hardness of concrete material directly affects it and resists the ability that micro-ploughing destroys, to carry
The high wear-resisting property of concrete.
Further, antifoaming agent is water-soluble antifoaming agent in the present invention, and the mass ratio to account for cementitious material calculates, antifoaming agent
It is the 0.8% of cementitious material, mixes the surface of test piece of antifoaming agent in vibration moulding, constantly have bubble spilling, and with stream
The increase bubble spillover of dynamic degree is more obvious, and due to the discharge of bubble, compactness improves inside RPC, test specimen compression strength
It improves.
Further, alkali-activator total amount accounts for cementitious material mass ratio when being 2%, and the early epistasis of sample can be more preferable.
Further, early-strength dose is calcium nitrite, and 5%~8% that calcium nitrite volume is cement quality,
Improve sample early strength.
Further, present invention uses high-efficiency polycarboxylic acid water reducers so that high-strength concrete is small in extremely low water-cement ratio
With good working performance.
Specific implementation mode
Below by specific embodiment, the present invention is described in detail.
Embodiment 1
Cement：42.5 Portland cements of shield Stone steles P.O；Silicon ash：Commercially available SiO2Content (mass content) is not less than
92%；Silica flour：Commercially available 325 mesh；Quartz sand：Commercially available quartz sand, particle size range are respectively 0.850~0.425mm of rubble sand
(20~40 mesh), middle 0.425~0.212mm of quartz sand (40~70 mesh), 0.212~0.125mm of fine quartz sand (70~120
Mesh)；Steel fibre：Two steel of Shanghai shellfish Hans Kalt production length be 13 ± 10%mm, the steel fibre of a diameter of 0.2 ± 0.03mm,
Tensile strength >=2850Mpa, density 8000kg/m3.Water-reducing agent：Polycarboxylate water-reducer, diminishing efficiency are 25%；Antifoaming agent：
Water-soluble antifoaming agent；Alkali-activator：By by the water glass solution (water content (mass percent) 55%) and purity of modulus 3.0
>=99% NaOH is mixed to prepare the water glass solution that modulus is 1.4；Nitrite：(Ca(NO2)2) purity >=98%, white knot
Brilliant solid.High abrasion mix proportion of high-strength concrete is shown in Table 1.
1 high abrasion mix proportion of high-strength concrete of table
Each raw material is weighed according to match ratio, is stirred, stirring sequence is：
Cement, silicon ash, silica flour and calcium nitrite are poured into blender and stirred 2 minutes, keeps four kinds of powder mixing equal
It is even.
NaOH is added in waterglass and is stirred evenly, alkali-activator is obtained.
Tap water, the alkali-activator prepared, antifoaming agent and water-reducing agent are poured into blender together, continue stirring 15
Minute, form cementitious material slurry；
Quartz sand and steel fibre are added in the cementitious material slurry being stirred and are stirred 15 minutes, is stirred
Concrete.
Then, the concrete being stirred is die-filling, form removal after waiting for 24 hours.
Test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time are 28 days；60 DEG C of constant temperature heatings
Water, curing time are 72 hours.
According to GB/T31387《Reactive Powder Concrete》、GB/T-50081《Normal concrete mechanical test method》、
GB/T-50080《Standard for test methods of properties of ordinary concrete mixture》、JC/T260-2001《Cast stone product method for testing performance-
Abrasion test》High abrasion Properties of High Strength Concrete is tested, result such as table 2.
The high abrasion Properties of High Strength Concrete test result of 2 embodiment 1 of table
Embodiment 2
Cement：Shield Stone steles P.O42.5 Portland cements；Silicon ash：Commercially available SiO2Content is not less than 92%；Silica flour：
Commercially available 325 mesh；Quartz sand：Commercially available quartz sand, particle size range be respectively 0.850~0.425mm of rubble sand (20~40 mesh), in
0.425~0.212mm of quartz sand (40~70 mesh), 0.212~0.125mm of fine quartz sand (70~120 mesh)；Steel fibre：Shanghai
The length of two steel of shellfish Hans Kalt production is 13 ± 10%mm, the steel fibre of a diameter of 0.2 ± 0.03mm, density 8000kg/m3。
Water-reducing agent：Polycarboxylate water-reducer, diminishing efficiency are 25%；Antifoaming agent：Water-soluble antifoaming agent；Alkali-activator：By by modulus 3.0
Water glass solution (water content (mass percent) 55%) and the NaOH of purity >=99% be mixed to prepare；Nitrite：(Ca
(NO2)2) purity >=98%, white crystalline solid.High abrasion mix proportion of high-strength concrete, is shown in Table 3.
3 high abrasion mix proportion of high-strength concrete of table
Each raw material is weighed according to match ratio, is stirred, stirring sequence is：
Cement, silicon ash, silica flour and calcium nitrite are poured into blender and stirred 2 minutes, keeps four kinds of powder mixing equal
It is even.
NaOH is added in waterglass and is stirred evenly, alkali-activator is obtained.
Tap water, the alkali-activator prepared, antifoaming agent, water-reducing agent are poured into blender together, continue 15 points of stirring
Clock forms cementitious material slurry；
Quartz sand and steel fibre are added in the cementitious material slurry being stirred and stir 15min, is stirred
Concrete.
Then, the concrete being stirred is die-filling, form removal after waiting for 24 hours.
Test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time are 28 days；60 DEG C of constant temperature heatings
Water, curing time are 72 hours.
According to GB/T31387《Reactive Powder Concrete》、GB/T-50081《Normal concrete mechanical test method》、
GB/T-50080《Standard for test methods of properties of ordinary concrete mixture》、JC/T260-2001《Cast stone product method for testing performance-
Abrasion test》High abrasion Properties of High Strength Concrete is tested, result such as table 4.
The high abrasion Properties of High Strength Concrete test result of 4 embodiment 2 of table
Embodiment 3
A kind of high abrasion high-strength concrete, according to the mass fraction, the component of the concrete includes 1147 parts of cementitious material, stone
1207 parts of sand, 22.94 parts of water-reducing agent, 19.85 parts of antifoaming agent, 22.94 parts of alkali-activator, 36.53 parts of early strength agent and water
127.12 part.
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Wherein cement is not less than P.O42.5 portland cements, SiO in silicon ash2Mass content is not less than 92%；Quartzy powder
Diameter is not more than 325 mesh.
The quartz sand includes that mass ratio is 1:0.46:0.32 rubble sand, middle quartz sand and fine quartz sand,
In, the grain size of the rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz sand
Grain size be 0.212~0.125mm.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The early strength agent is Ca (NO2)2, purity >=98%, white crystalline solid, and Ca (NO2)2Volume is cement quality
8%.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 is the waterglass by the way that the waterglass of modulus 3.0 and NaOH to be mixed with
Water content mass percent be 55%；NaOH purity >=99%；
The preparation method of above-mentioned high abrasion high-strength concrete, includes the following steps：
1) component is weighed：According to the mass fraction, 1147 parts of cementitious material, 1207 parts of quartz sand, 22.94 parts of water-reducing agent disappear
127.12 parts of 19.85 parts of infusion, 22.94 parts of alkali-activator, 36.53 parts of early strength agent and water.
The cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour 20.4%；
Wherein cement is not less than P.O42.5 portland cements, SiO in silicon ash2Mass content is not less than 92%；Silica flour grain size is not more than
325 mesh.
The quartz sand includes that mass ratio is 1:0.46:0.32 rubble sand, middle quartz sand and fine quartz sand,
In, the grain size of the rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz sand
Grain size be 0.212~0.125mm.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The early strength agent is nitrite (Ca (NO2)2), purity >=98%, white crystalline solid, and nitrite volume
It is the 8% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 is the waterglass by the way that the waterglass of modulus 3.0 and NaOH to be mixed with
Water content mass percent be 55%；NaOH purity >=99%；
2) cement, silicon ash, silica flour are poured into calcium nitrite in blender and is stirred 2 minutes, keep four kinds of powder mixing equal
It is even.
3) NaOH is added in waterglass and is stirred evenly, obtain alkali-activator.By tap water, the alkali-activated carbonatite prepared
Agent, antifoaming agent, water-reducing agent pour into blender together, continue stirring 15 minutes, form cementitious material slurry；
4) quartz sand is stirred into 15min to be added in the cementitious material slurry being stirred, the concrete being stirred.
5) test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time is 28 days, is obtained high resistance to
Grind high-strength concrete.
High abrasion Properties of High Strength Concrete is tested, result such as table 5.
5 high abrasion Properties of High Strength Concrete test result of table
Embodiment 4
A kind of high abrasion high-strength concrete, according to the mass fraction, the component of the concrete includes 1147 parts of cementitious material, stone
1207 parts of sand, 160 parts of steel fibre, 22.94 parts of water-reducing agent, 19.85 parts of antifoaming agent, 22.94 parts of alkali-activator, early strength agent
36.53 parts and 127.12 parts of water.
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Wherein cement is not less than P.O42.5 portland cements, SiO in silicon ash2Mass content is not less than 92%；Quartzy powder
Diameter is not more than 325 mesh.
The quartz sand includes that mass ratio is 1:0.47:0.32 rubble sand, middle quartz sand and fine quartz sand,
In, the grain size of the rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz sand
Grain size be 0.212~0.125mm.
The steel fibre volume volume is 2%.
The length of steel fiber is 11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The early strength agent is nitrite (Ca (NO2)2), purity >=98%, white crystalline solid, and Ca (NO2)2Volume
It is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 is the waterglass by the way that the waterglass of modulus 3.0 and NaOH to be mixed with
Water content mass percent be 55%；NaOH purity >=99%；
The preparation method of the above-mentioned strong high-strength concrete of high abrasion, includes the following steps：
1) component is weighed：According to the mass fraction, 1147 parts of cementitious material, 1207 parts of quartz sand, 160 parts of steel fibre, diminishing
127.12 parts of 22.94 parts of agent, 19.85 parts of antifoaming agent, 22.94 parts of alkali-activator, 36.53 parts of early strength agent and water.
The cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour 20.4%；
Wherein cement is not less than P.O42.5 portland cements, SiO in silicon ash2Mass content is not less than 92%；Silica flour grain size is not more than
325 mesh.
The quartz sand includes that mass ratio is 1:0.46:0.32 rubble sand, middle quartz sand and fine quartz sand,
In, the grain size of the rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz sand
Grain size be 0.212~0.125mm.
The steel fibre volume volume is 2%.
The length of steel fiber is 11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The early strength agent is nitrite (Ca (NO2)2), purity >=98%, white crystalline solid, and nitrite volume
It is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 is the waterglass by the way that the waterglass of modulus 3.0 and NaOH to be mixed with
Water content mass percent be 55%；NaOH purity >=99%；
2) cement, silicon ash, silica flour and calcium nitrite are poured into blender and is stirred 2 minutes, make four kinds of powder mixing
Uniformly.
3) NaOH is added in waterglass and is stirred evenly, obtain alkali-activator.By tap water, the alkali-activated carbonatite prepared
Agent, antifoaming agent and water-reducing agent pour into blender together, continue stirring 15 minutes, form cementitious material slurry；
4) quartz sand and steel fibre are added in the cementitious material slurry being stirred and stir 15min, be stirred
Concrete.
5) test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time are 28 days；60 DEG C of constant temperature
Hot water, curing time are 72 hours, obtain high abrasion high-strength concrete.
High abrasion Properties of High Strength Concrete is tested, result such as table 6.
6 high abrasion Properties of High Strength Concrete test result of table
Embodiment 5
A kind of high abrasion high-strength concrete, according to the mass fraction, the component of the concrete includes 1147 parts of cementitious material, stone
1207 parts of sand, 200 parts of steel fibre, 22.94 parts of water-reducing agent, 19.85 parts of antifoaming agent, 22.94 parts of alkali-activator, early strength agent
36.53 parts and 127.12 parts of water.
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Wherein cement is not less than P.O42.5 portland cements, SiO in silicon ash2Mass content is not less than 92%；Quartzy powder
Diameter is not more than 325 mesh.
The quartz sand includes that mass ratio is 1:0.46:0.33 rubble sand, middle quartz sand and fine quartz sand,
In, the grain size of the rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz sand
Grain size be 0.212~0.125mm.
The steel fibre volume volume is 2.5%.
The length of steel fiber is 11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The early strength agent is nitrite (Ca (NO2)2), purity >=98%, white crystalline solid, and Ca (NO2)2Volume
It is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 is the waterglass by the way that the waterglass of modulus 3.0 and NaOH to be mixed with
Water content mass percent be 55%；NaOH purity >=99%；
The preparation method of above-mentioned high abrasion high-strength concrete, includes the following steps：
1) component is weighed：According to the mass fraction, 1147 parts of cementitious material, 1207 parts of quartz sand, 200 parts of steel fibre, diminishing
127.12 parts of 22.94 parts of agent, 19.85 parts of antifoaming agent, 22.94 parts of alkali-activator, 36.53 parts of early strength agent and water.
The cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour 20.4%；
Wherein cement is not less than P.O42.5 portland cements, SiO in silicon ash2Mass content is not less than 92%；Silica flour grain size is not more than
325 mesh.
The quartz sand includes that mass ratio is 1:0.46:0.32 rubble sand, middle quartz sand and fine quartz sand,
In, the grain size of the rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz sand
Grain size be 0.212~0.125mm.
The steel fibre volume volume is 2.5%.
The length of steel fiber is 11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The early strength agent is nitrite (Ca (NO2)2), purity >=98%, white crystalline solid, and nitrite volume
It is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 is the waterglass by the way that the waterglass of modulus 3.0 and NaOH to be mixed with
Water content mass percent be 55%；NaOH purity >=99%；
2) cement, silicon ash, silica flour and calcium nitrite are poured into blender and is stirred 2 minutes, make four kinds of powder mixing
Uniformly.
3) NaOH is added in waterglass and is stirred evenly, obtain alkali-activator.By tap water, the alkali-activated carbonatite prepared
Agent, antifoaming agent, water-reducing agent pour into blender together, continue stirring 15 minutes, form cementitious material slurry；
4) quartz sand and steel fibre are added in the cementitious material slurry being stirred and stir 15min, be stirred
Concrete.
5) test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time is 28 days, is obtained high resistance to
Grind high-strength concrete.
High abrasion Properties of High Strength Concrete is tested, result such as table 7.
7 high abrasion Properties of High Strength Concrete test result of table
Embodiment 6
A kind of high abrasion high-strength concrete, according to the mass fraction, the component of the concrete includes 1147 parts of cementitious material, stone
1207 parts of sand, 22.94 parts of water-reducing agent, 19.85 parts of antifoaming agent, 22.94 parts of alkali-activator, 36.53 parts of early strength agent and water
127.12 part.
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Wherein cement is not less than P.O42.5 portland cements, SiO in silicon ash2Mass content is not less than 92%；Quartzy powder
Diameter is not more than 325 mesh.
The quartz sand includes that mass ratio is 1:0.47:0.33 rubble sand, middle quartz sand and fine quartz sand,
In, the grain size of the rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz sand
Grain size be 0.212~0.125mm.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The early strength agent is nitrite (Ca (NO2)2), purity >=98%, white crystalline solid, and Ca (NO2)2Volume
It is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 is the waterglass by the way that the waterglass of modulus 3.0 and NaOH to be mixed with
Water content mass percent be 55%；NaOH purity >=99%；
The preparation method of above-mentioned high abrasion high-strength concrete, includes the following steps：
1) component is weighed：According to the mass fraction, 1147 parts of cementitious material, 1207 parts of quartz sand, 200 parts of steel fibre, diminishing
127.12 parts of 22.94 parts of agent, 19.85 parts of antifoaming agent, 22.94 parts of alkali-activator, 36.53 parts of early strength agent and water.
The cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour 20.4%；
Wherein cement is not less than P.O42.5 portland cements, SiO in silicon ash2Mass content is not less than 92%；Silica flour grain size is not more than
325 mesh.
The quartz sand includes that mass ratio is 1:0.46:0.32 rubble sand, middle quartz sand and fine quartz sand,
In, the grain size of the rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz sand
Grain size be 0.212~0.125mm.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The early strength agent is nitrite (Ca (NO2)2), purity >=98%, white crystalline solid, and nitrite volume
It is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 is the waterglass by the way that the waterglass of modulus 3.0 and NaOH to be mixed with
Water content mass percent be 55%；NaOH purity >=99%；
2) cement, silicon ash, silica flour and calcium nitrite are poured into blender and is stirred 2 minutes, make four kinds of powder mixing
Uniformly.
3) NaOH is added in waterglass and is stirred evenly, obtain alkali-activator.By tap water, the alkali-activated carbonatite prepared
Agent, antifoaming agent, water-reducing agent pour into blender together, continue stirring 15 minutes, form cementitious material slurry；
4) quartz sand is added in the cementitious material slurry being stirred and stirs 15min, the concrete being stirred.
5) test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time is 28 days, is obtained high resistance to
Grind high-strength concrete.
High abrasion Properties of High Strength Concrete is tested, result such as table 8.
8 high abrasion Properties of High Strength Concrete test result of table
Embodiment 7
A kind of high abrasion high-strength concrete, which is characterized in that according to the mass fraction, including 1058 parts of cementitious material, quartz
1120 parts of sand, 170 parts of steel fibre, 21.17 parts of water-reducing agent, 19.41 parts of antifoaming agent, 21.17 parts of alkali-activator, nitrites are early
159.62 parts of 33.71 parts of strong agent and water.
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Wherein strength of cement is not less than 42.5 portland cements of P.O, SiO in silicon ash2Mass content is not less than 92%；Quartz
Powder diameter is not more than 325 mesh.
The quartz sand is that mass ratio is 1:0.46:The mixing of 0.32 rubble sand, middle quartz sand and fine quartz sand
Object, wherein the grain size of rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz
The grain size of sand is 0.212~0.125mm.
The volume volume of the steel fibre is 1%.
The length of steel fiber is 11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The nitrites early strength agent is Ca (NO2)2, and Ca (NO2)2Volume is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 be by the way that the waterglass of modulus 3.0 is mixed to prepare with NaOH, waterglass
Water content mass percent is 55%；NaOH purity >=99%；The percentage that alkali-activator accounts for cementitious material quality is 2%.
The preparation method of above-mentioned high abrasion high-strength concrete, includes the following steps：
1) by cement, silicon ash, silica flour and Ca (NO2)2It pours into blender and stirs evenly；
2) water, alkali-activator, antifoaming agent and water-reducing agent are added in blender and are stirred evenly, form cementitious material slurry
Body；
3) quartz sand and steel fibre are added in cementitious material slurry and are stirred evenly；Then, die-filling, it is torn open after 24 hours
Mould obtains test specimen；
4) test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time are 28 days；60 DEG C of constant temperature
Hot water, curing time are 72 hours, obtain high abrasion high-strength concrete.
High abrasion Properties of High Strength Concrete is tested, result such as table 9.
9 high abrasion Properties of High Strength Concrete test result of table
Embodiment 8
A kind of high abrasion high-strength concrete, which is characterized in that according to the mass fraction, including 1100 parts of cementitious material, quartz
1271 parts of sand, 180 parts of steel fibre, 22.94 parts of water-reducing agent, 19.85 parts of antifoaming agent, 22.94 parts of alkali-activator, nitrites are early
130 parts of 39.53 parts of strong agent and water.
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Wherein strength of cement is not less than 42.5 portland cements of P.O, SiO in silicon ash2Mass content is not less than 92%；Quartz
Powder diameter is not more than 325 mesh.
The quartz sand is that mass ratio is 1:0.46:The mixing of 0.32 rubble sand, middle quartz sand and fine quartz sand
Object, wherein the grain size of rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz
The grain size of sand is 0.212~0.125mm.
The volume volume of the steel fibre is 1.5%.
The length of steel fiber is 11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The nitrites early strength agent is Ca (NO2)2, and Ca (NO2)2Volume is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 be by the way that the waterglass of modulus 3.0 is mixed to prepare with NaOH, waterglass
Water content mass percent is 55%；NaOH purity >=99%；The percentage that alkali-activator accounts for cementitious material quality is 2%.
The preparation method of above-mentioned high abrasion high-strength concrete, includes the following steps：
1) by cement, silicon ash, silica flour and Ca (NO2)2It pours into blender and stirs evenly；
2) water, alkali-activator, antifoaming agent and water-reducing agent are added in blender and are stirred evenly, form cementitious material slurry
Body；
3) quartz sand and steel fibre are added in cementitious material slurry and are stirred evenly；Then, die-filling, it is torn open after 24 hours
Mould obtains test specimen；
4) test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time are 28 days；60 DEG C of constant temperature
Hot water, curing time are 72 hours, obtain high abrasion high-strength concrete.
High abrasion Properties of High Strength Concrete is tested, result such as table 10.
10 high abrasion Properties of High Strength Concrete test result of table
Embodiment 9
A kind of high abrasion high-strength concrete, which is characterized in that according to the mass fraction, including 1130 parts of cementitious material, quartz
1120 parts of sand, 190 parts of steel fibre, 22 parts of water-reducing agent, 19.7 parts of antifoaming agent, 22 parts of alkali-activator, nitrites early strength agent 35
140 parts of part and water.
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Wherein strength of cement is not less than 42.5 portland cements of P.O, SiO in silicon ash2Mass content is not less than 92%；Quartz
Powder diameter is not more than 325 mesh.
The quartz sand is that mass ratio is 1:0.46:The mixing of 0.32 rubble sand, middle quartz sand and fine quartz sand
Object, wherein the grain size of rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz
The grain size of sand is 0.212~0.125mm.
The volume volume of the steel fibre is 0.5%.
The length of steel fiber is 11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The nitrites early strength agent is Ca (NO2)2, and Ca (NO2)2Volume is the 5% of cement quality；The defoaming
Agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 be by the way that the waterglass of modulus 3.0 is mixed to prepare with NaOH, waterglass
Water content mass percent is 55%；NaOH purity >=99%；The percentage that alkali-activator accounts for cementitious material quality is 2%.
The preparation method of above-mentioned high abrasion high-strength concrete, includes the following steps：
1) by cement, silicon ash, silica flour and Ca (NO2)2It pours into blender and stirs evenly；
2) water, alkali-activator, antifoaming agent and water-reducing agent are added in blender and are stirred evenly, form cementitious material slurry
Body；
3) quartz sand and steel fibre are added in cementitious material slurry and are stirred evenly；Then, die-filling, it is torn open after 24 hours
Mould obtains test specimen；
4) test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time are 28 days；60 DEG C of constant temperature
Hot water, curing time are 72 hours, obtain high abrasion high-strength concrete.
High abrasion Properties of High Strength Concrete is tested, result such as table 11.
11 high abrasion Properties of High Strength Concrete test result of table
Embodiment 10
A kind of high abrasion high-strength concrete, which is characterized in that according to the mass fraction, including 1180 parts of cementitious material, quartz
1240 parts of sand, 200 parts of steel fibre, 22 parts of water-reducing agent, 19.6 parts of antifoaming agent, 22.5 parts of alkali-activator, nitrites early strength agent
34 parts and 150 parts of water.
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Wherein strength of cement is not less than 42.5 portland cements of P.O, SiO in silicon ash2Mass content is not less than 92%；Quartz
Powder diameter is not more than 325 mesh.
The quartz sand is that mass ratio is 1:0.46:The mixing of 0.32 rubble sand, middle quartz sand and fine quartz sand
Object, wherein the grain size of rubble sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, fine quartz
The grain size of sand is 0.212~0.125mm.
The volume volume of the steel fibre is 2%.
The length of steel fiber is 11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
The water-reducing agent is the polycarboxylate water-reducer that diminishing efficiency is not less than 25%.
The nitrites early strength agent is Ca (NO2)2, and Ca (NO2)2Volume is the 5% of cement quality.
The antifoaming agent is water-soluble antifoaming agent.
The alkali-activator is the water glass solution of modulus 1.4.
The water glass solution of the modulus 1.4 be by the way that the waterglass of modulus 3.0 is mixed to prepare with NaOH, waterglass
Water content mass percent is 55%；NaOH purity >=99%；The percentage that alkali-activator accounts for cementitious material quality is 2%.
The preparation method of above-mentioned high abrasion high-strength concrete, includes the following steps：
1) by cement, silicon ash, silica flour and Ca (NO2)2It pours into blender and stirs evenly；
2) water, alkali-activator, antifoaming agent and water-reducing agent are added in blender and are stirred evenly, form cementitious material slurry
Body；
3) quartz sand and steel fibre are added in cementitious material slurry and are stirred evenly；Then, die-filling, it is torn open after 24 hours
Mould obtains test specimen；
4) test specimen is conserved, curing condition is：(>=10 DEG C) maintenances of room temperature, curing time are 28 days；It obtains high resistance to
Grind high-strength concrete.
High abrasion Properties of High Strength Concrete is tested, result such as table 12.
12 high abrasion Properties of High Strength Concrete test result of table
In order to prepare high abrasion high-strength concrete, the present invention makes full use of the high pozzolanic activity of silicon ash and efficiently fills and imitates
It answers, selects high abrasion to gather materials, using the preparation method of ultra-high-strength cement-based composites, by alkali-activator (waterglass) and early strength agent
(nitrite) improves the Early-age behavior of high-strength concrete, has significant innovation as in additive incorporation high-strength concrete
Meaning and extensive engineering application value.
The present invention provides a kind of high abrasion high-strength concrete preparation methods, in order to improve the morning of high-strength concrete
Phase intensity reduces high-strength concrete and makes the cycle period of prefabricated component, while promoting the wearability of high-strength concrete
Can, it is applied to Practical Project.
Claims (10)
1. a kind of high abrasion high-strength concrete, which is characterized in that according to the mass fraction, including 1058~1183 parts of cementitious material,
1120~1271 parts of quartz sand, 0~200 part of steel fibre, 21.17~22.94 parts of water-reducing agent, 19.41~19.85 parts of antifoaming agent,
127.12~159.62 parts of 21.17~22.94 parts of alkali-activator, 33.71~36.53 parts of nitrites early strength agent and water.
2. a kind of high abrasion high-strength concrete according to claim 1, which is characterized in that the cementitious material presses quality hundred
Divide than meter, including cement 63.7%, silicon ash 15.9% and silica flour 20.4%；Wherein strength of cement is not less than 42.5 silicon of P.O
Acid salt cement, SiO in silicon ash2Mass content is not less than 92%；Silica flour grain size is not more than 325 mesh.
3. a kind of high abrasion high-strength concrete according to claim 1, which is characterized in that the quartz sand is that mass ratio is
1:(0.46~0.47):The rubble sand of (0.32~0.33), the mixture of middle quartz sand and fine quartz sand, wherein rubble
The grain size of sand is 0.850~0.425mm, and the grain size of middle quartz sand is 0.425~0.212mm, and the grain size of fine quartz sand is
0.212~0.125mm.
4. a kind of high abrasion high-strength concrete according to claim 1, which is characterized in that the volume volume of the steel fibre
It is 2~2.5%.
5. a kind of high abrasion high-strength concrete according to claim 1 or 4, which is characterized in that the length of steel fiber is
11.7~14.3mm, a diameter of 0.17~0.23mm, tensile strength >=2850Mpa.
6. a kind of high abrasion high-strength concrete according to claim 1, which is characterized in that the water-reducing agent is diminishing efficiency
Polycarboxylate water-reducer not less than 25%.
7. a kind of high abrasion high-strength concrete according to claim 1, which is characterized in that the nitrites early strength agent
For Ca (NO2)2, and Ca (NO2)2Volume is the 5%~8% of cement quality；The antifoaming agent is water-soluble antifoaming agent.
8. a kind of high abrasion high-strength concrete according to claim 1, which is characterized in that the alkali-activator is modulus
1.4 water glass solution.
9. a kind of high abrasion high-strength concrete according to claim 8, which is characterized in that the waterglass of the modulus 1.4
Solution is by the way that the waterglass of modulus 3.0 to be mixed to prepare with NaOH, and the water content mass percent of waterglass is 55%；NaOH
Purity >=99%；The percentage that alkali-activator accounts for cementitious material quality is 2%.
10. a kind of preparation method of high abrasion high-strength concrete, which is characterized in that include the following steps：
1) component is weighed：According to the mass fraction, 1058~1183 parts of cementitious material, 1120~1271 parts of quartz sand, steel fibre are measured
0~200 part of dimension, 21.17~22.94 parts of water-reducing agent, 19.41~18.85 parts of antifoaming agent, 201.17~22.94 parts of alkali-activator,
127.12~159.62 parts of 33.71~36.53 parts of early strength agent and water；
Wherein, the cementitious material by mass percentage, including cement 63.7%, silicon ash 15.9% and silica flour
20.4%；Alkali-activator is the water glass solution of modulus 1.4；
2) cement, silicon ash, silica flour and nitrite are poured into blender and is stirred evenly；
3) water, alkali-activator, antifoaming agent and water-reducing agent are added in blender and are stirred evenly, form cementitious material slurry；
4) quartz sand and steel fibre are added in cementitious material slurry and are stirred evenly；Then, die-filling, form removal after 24 hours,
Obtain test specimen；
5) test specimen is conserved, curing condition is：Room temperature conserves, and curing time is 28 days；60 DEG C of constant-temperature hot waters, curing time
It is 72 hours, obtains high abrasion high-strength concrete.
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Application publication date: 20180821 |