CN115124305A - High-performance artificial sand concrete and preparation method thereof - Google Patents
High-performance artificial sand concrete and preparation method thereof Download PDFInfo
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- CN115124305A CN115124305A CN202210729716.XA CN202210729716A CN115124305A CN 115124305 A CN115124305 A CN 115124305A CN 202210729716 A CN202210729716 A CN 202210729716A CN 115124305 A CN115124305 A CN 115124305A
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- 239000004576 sand Substances 0.000 title claims abstract description 134
- 239000004567 concrete Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims description 16
- 239000000203 mixture Substances 0.000 claims abstract description 45
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 32
- 239000011707 mineral Substances 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims description 61
- 238000002156 mixing Methods 0.000 claims description 49
- 229910000831 Steel Inorganic materials 0.000 claims description 45
- 239000010959 steel Substances 0.000 claims description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 241000208340 Araliaceae Species 0.000 claims description 38
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 38
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 38
- 235000008434 ginseng Nutrition 0.000 claims description 38
- 239000002893 slag Substances 0.000 claims description 36
- 241000512897 Elaeis Species 0.000 claims description 27
- 235000001950 Elaeis guineensis Nutrition 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- 239000000835 fiber Substances 0.000 claims description 27
- 239000003638 chemical reducing agent Substances 0.000 claims description 26
- 239000004575 stone Substances 0.000 claims description 25
- 210000000988 bone and bone Anatomy 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 22
- 239000004568 cement Substances 0.000 claims description 20
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000010881 fly ash Substances 0.000 claims description 18
- 239000010445 mica Substances 0.000 claims description 18
- 229910052618 mica group Inorganic materials 0.000 claims description 18
- 239000011863 silicon-based powder Substances 0.000 claims description 18
- 239000012985 polymerization agent Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 14
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 14
- 229920001577 copolymer Polymers 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 9
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 claims description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 6
- 239000011398 Portland cement Substances 0.000 claims description 6
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 6
- 239000011372 high-strength concrete Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 14
- 239000004574 high-performance concrete Substances 0.000 description 7
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
-
- 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
- C04B2111/2038—Resistance against physical degradation
- C04B2111/2046—Shock-absorbing materials
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses high-performance artificial sand concrete which comprises the following components in parts by weight: 570 parts of coarse aggregate 540-; according to the high-performance artificial sand concrete, the mineral aggregate and the coarse aggregate are added, and the artificial sand graded mixture replaces natural sand, so that the pouring structure is stable in filling, good in compactness, small in slump value detection and slump amplitude, capable of improving the structural appearance quality of the high-performance artificial sand concrete, improved in compressive strength and capable of guaranteeing the durability of the high-performance artificial sand concrete and meeting the strength requirement of the high-performance artificial sand concrete at a higher level.
Description
Technical Field
The invention relates to the technical field of high-performance concrete, in particular to high-performance artificial sand concrete and a preparation method thereof.
Background
The natural river sand is limited by regions, so that the resource of the natural river sand is very limited, if a large amount of natural river sand is mined, not only can the ecological environment of the regions be damaged, but also the natural sand resource is relatively deficient, the use cost is higher and higher, and in addition, a large amount of natural river sand which is put into the market has poor quality, such as unqualified gradation, high mud content and the like, so that the problems of cracking and durability of the concrete of the structure are influenced.
The artificial sand is used for mixing the concrete instead of natural river sand, the performance of the concrete can be effectively improved on the basis of reducing resource consumption by reasonably utilizing the artificial sand, when the artificial sand is used for mixing the high-performance concrete, the high performance concrete HPC is a novel high technology concrete, is produced by adopting conventional materials and processes, has various mechanical properties required by a concrete structure, and has the concrete with high durability, high workability and high volume stability, the high performance concrete in the prior art is prepared by mixing main materials such as coarse aggregates, fine aggregates, artificial sand, stone powder and the like in a conventional way, if the mechanical property of the blended high-performance concrete is improved to a certain extent according to the conventional mixing proportion design method, but the method is not suitable for manufacturing high-strength concrete structures higher than C50 grade, and the problems of cracking, durability and the like of the high-strength concrete structures cannot be improved to obtain better application effects.
Disclosure of Invention
The invention aims to provide high-performance artificial sand concrete and a preparation method thereof, which are used for solving the problem that the high-performance concrete mixed in proportion cannot meet the requirement of higher-level strength and solving the problem that the high-strength concrete structure cannot be cracked and has better durability and the like to obtain better application effect.
The purpose of the invention can be realized by the following technical scheme:
the high-performance artificial sand concrete comprises the following components in parts by weight: 570 parts of coarse aggregate 540-;
the mineral additive is prepared by mixing fly ash, slag powder, steel slag powder, micro silicon powder and mica stone powder, wherein the fly ash: slag powder: steel slag powder: micro silicon powder: the mass ratio of the mica stone powder is 100: 80: 13: 6: 1;
the crude bone ginseng mixture is prepared by stirring and mixing oil palm shells and steel fibers with 20-30% of polyvinyl alcohol solution by mass percent, wherein the oil palm shells: the mass ratio of the steel fibers is 30-40: 1;
the fineness modulus of the artificial sand is between 2.3 and 3.0, the content of stone powder in the artificial sand is 3 to 5 percent, and the artificial sand comprises the graded artificial sand in parts by weight as follows:
5-15 parts of artificial sand with the diameter of 1.18-2.36 mm,
18-26 parts of 600 mu m-1.18mm artificial sand,
25 to 35 portions of artificial sand with the diameter of 300 to 600 mu m,
12-17 parts of artificial sand with the particle size of 150-300 mu m,
7-13 parts of artificial sand with the particle size of less than 150 microns.
As a further scheme of the invention: the coarse aggregates comprise graded coarse aggregates with the following mass ratio, 22-30mm coarse aggregates: 11-22 coarse aggregate: 22-25 of coarse aggregate with the diameter of 6-11 mm: 25-28: 11-15.
As a further scheme of the invention: the fine aggregate comprises graded fine aggregate with the following mass ratio, and the fine aggregate is 3-6 mm: the fine aggregate with the diameter of 0-3mm is 4-6: 24-26.
As a further scheme of the invention: the sizes of the oil palm shells and the steel fibers are 0.5-1.0 mm.
As a further scheme of the invention: the cement is Portland cement with the strength grade not lower than 42.5.
As a further scheme of the invention: the polymerization agent is butadiene-styrene copolymer water-soluble emulsion, and the AMPS mole fraction in the copolymer is 40-60%.
As a further scheme of the invention: the water reducing agent is melamine sulfonate formaldehyde polymer water reducing agent.
As a further scheme of the invention: the air entraining agent is rosin resin air entraining agent.
As a further scheme of the invention: a preparation method of high-performance artificial sand concrete comprises the following specific preparation steps:
step one, preparing a mineral ginseng mixture: uniformly mixing the fly ash, the slag powder, the steel slag powder, the micro silicon powder and the mica stone powder to obtain a mineral blended material;
step two, preparing a coarse bone ginseng mixture: stirring and mixing the oil palm shells and the steel fibers by using a polyvinyl alcohol solution with the mass fraction of 20-30% to obtain a crude ginseng aggregate;
step three, preparing dry blend, namely mixing and stirring the coarse aggregate, the fine aggregate, the mineral aggregate, the artificial sand and the cement for 15-25s to obtain the dry blend;
step four, manufacturing concrete: and mixing the dry mixture, the crude bone and ginseng mixture, water, a polymerization agent, a water reducing agent and an air entraining agent, and wet-stirring for 45-55s to obtain the high-performance artificial sand concrete.
As a further scheme of the invention: the high-performance artificial sand concrete is applied to manufacturing of high-strength concrete structures.
The invention has the beneficial effects that:
(1) according to the high-performance artificial sand concrete, the mineral aggregate and the coarse aggregate are added, and the artificial sand graded mixture replaces natural sand, so that the pouring structure is stable in filling, good in compactness, small in slump value detection and slump amplitude, capable of improving the structural appearance quality of the high-performance artificial sand concrete, improved in compressive strength and capable of guaranteeing the durability of the high-performance artificial sand concrete and meeting the strength requirement of the high-performance artificial sand concrete at a higher level;
(2) the crude bone-joining material is prepared by stirring and mixing oil palm shells and steel fibers through a polyvinyl alcohol solution, the polyvinyl alcohol solution can form a layer of film on the surfaces of the oil palm shells and the steel fibers, can effectively prevent water from permeating, and is easy to be mixed with other slurry, and the oil palm shells and the steel fibers can improve the shock resistance and absorption capacity of high-performance artificial sand concrete.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention relates to high-performance artificial sand concrete which comprises the following components in parts by weight: 540 parts of coarse aggregate, 390 parts of fine aggregate, 80 parts of mineral ginseng aggregate, 16 parts of coarse bone ginseng aggregate, 700 parts of artificial sand, 330 parts of cement, 145 parts of water, 0.1 part of polymerization agent, 5.5 parts of water reducing agent and 0.03 part of air entraining agent;
the mineral additive is prepared by mixing fly ash, slag powder, steel slag powder, micro silicon powder and mica stone powder, wherein the fly ash: slag powder: steel slag powder: micro silicon powder: the mass ratio of the mica stone powder is 100: 80: 13: 6: 1;
the crude bone ginseng mixture is prepared by stirring and mixing oil palm shells and steel fibers by using a polyvinyl alcohol solution with the mass fraction of 20%, wherein the weight ratio of the oil palm shells: the mass ratio of the steel fibers is 30: 1;
the fineness modulus of the artificial sand is between 2.3 and 3.0, the content of stone powder in the artificial sand is 3 percent, and the artificial sand comprises the following graded artificial sand and 1.18mm to 2.36mm of artificial sand in mass ratio: 600 μm-1.18mm artificial sand: 300-600 μm artificial sand: 150-300 μm artificial sand: the artificial sand with the particle size of below 150 mu m is 5: 18: 25: 12: 7.
the coarse aggregate comprises the following graded coarse aggregate in mass ratio, and 22-30mm coarse aggregate: 11-22 coarse aggregate: the coarse aggregate of 6-11mm is 22: 25: 11.
the fine aggregate comprises graded fine aggregate with the following mass ratio, and the fine aggregate with the particle size of 3-6 mm: the fine aggregate with the diameter of 0-3mm is 4: 24.
the size of the oil palm shell and the size of the steel fiber are both 0.5 mm.
The cement is Portland cement with the strength grade not lower than 42.5.
The polymerizer is a butadiene-styrene copolymer water-soluble emulsion, and the AMPS mole fraction in the copolymer is 40%.
The water reducing agent is melamine sulfonate formaldehyde polymer water reducing agent.
The air entraining agent is rosin resin air entraining agent.
A preparation method of high-performance artificial sand concrete comprises the following specific preparation steps:
step one, preparing a mineral ginseng mixture: uniformly mixing the fly ash, the slag powder, the steel slag powder, the micro silicon powder and the mica stone powder to obtain a mineral blending material;
step two, preparing a coarse bone ginseng mixture: stirring and mixing the oil palm shells and the steel fibers by using a polyvinyl alcohol solution with the mass fraction of 20% to obtain a crude ginseng aggregate;
step three, preparing a dry mixture, namely mixing and stirring the coarse aggregate, the fine aggregate, the mineral aggregate, the artificial sand and the cement for 15s to obtain the dry mixture;
step four, manufacturing concrete: and mixing the dry mixture, the crude bone and ginseng mixture, water, the polymerization agent, the water reducing agent and the air entraining agent, and wet-mixing for 45s to obtain the high-performance artificial sand concrete.
Example 2
The invention relates to high-performance artificial sand concrete which comprises the following components in parts by weight: 550 parts of coarse aggregate, 400 parts of fine aggregate, 90 parts of mineral ginseng material, 20 parts of coarse bone ginseng material, 720 parts of artificial sand, 340 parts of cement, 155 parts of water, 0.3 part of polymerization agent, 6 parts of water reducing agent and 0.04 part of air entraining agent;
the mineral additive is prepared by mixing fly ash, slag powder, steel slag powder, micro silicon powder and mica stone powder, wherein the fly ash: slag powder: steel slag powder: micro silicon powder: the mass ratio of the mica stone powder is 100: 80: 13: 6: 1;
the crude bone ginseng mixture is prepared by stirring and mixing oil palm shells and steel fibers by using a polyvinyl alcohol solution with the mass fraction of 25%, wherein the weight ratio of the oil palm shells: the mass ratio of the steel fibers is 35: 1;
the fineness modulus of the artificial sand is between 2.3 and 3.0, the content of stone powder in the artificial sand is 4 percent, and the artificial sand comprises the following graded artificial sand and 1.18-2.36 mm artificial sand in mass ratio: 600 μm-1.18mm artificial sand: 300-600 μm artificial sand: artificial sand of 150 μm to 300 μm: the artificial sand with the particle size of below 150 mu m is 10: 20: 30: 14: 9.
the coarse aggregate comprises the following graded coarse aggregate in mass ratio, and 22-30mm coarse aggregate: 11-22 coarse aggregate: the coarse aggregate of 6-11mm is 23: 26: 12.
the fine aggregate comprises graded fine aggregate with the following mass ratio, and the fine aggregate with the particle size of 3-6 mm: the fine aggregate of 0-3mm is 5: 25.
the size of the oil palm shell and the size of the steel fiber are both 0.7 mm.
The cement is Portland cement with the strength grade not lower than 42.5.
The polymerizer is butadiene-styrene copolymer water-soluble emulsion, and the AMPS mole fraction in the copolymer is 50%.
The water reducing agent is melamine sulfonate formaldehyde polymer water reducing agent.
The air entraining agent is rosin resin air entraining agent.
A preparation method of high-performance artificial sand concrete comprises the following specific preparation steps:
step one, preparing a mineral ginseng mixture: uniformly mixing the fly ash, the slag powder, the steel slag powder, the micro silicon powder and the mica stone powder to obtain a mineral blending material;
step two, preparing a coarse bone ginseng mixture: stirring and mixing the oil palm shells and the steel fibers by using a polyvinyl alcohol solution with the mass fraction of 25% to obtain a crude ginseng mixture;
step three, preparing a dry mixture, namely mixing and stirring the coarse aggregate, the fine aggregate, the mineral aggregate, the artificial sand and the cement for 18s to obtain the dry mixture;
step four, manufacturing concrete: and mixing the dry mixture, the crude bone and ginseng mixture, water, a polymerization agent, a water reducing agent and an air entraining agent, and wet-mixing for 48 seconds to obtain the high-performance artificial sand concrete.
Example 3
The invention relates to high-performance artificial sand concrete which comprises the following components in parts by weight: 560 parts of coarse aggregate, 400 parts of fine aggregate, 95 parts of mineral ginseng material, 25 parts of coarse bone ginseng material, 740 parts of artificial sand, 345 parts of cement, 160 parts of water, 0.4 part of polymerization agent, 6.5 parts of water reducing agent and 0.05 part of air entraining agent;
the mineral additive is prepared by mixing fly ash, slag powder, steel slag powder, micro silicon powder and mica stone powder, wherein the fly ash: slag powder: steel slag powder: micro silicon powder: the mass ratio of the mica stone powder is 100: 80: 13: 6: 1;
the crude bone ginseng mixture is prepared by stirring and mixing oil palm shells and steel fibers by using a polyvinyl alcohol solution with the mass fraction of 28%, wherein the weight ratio of the oil palm shells: the mass ratio of the steel fibers is 37: 1;
the fineness modulus of the artificial sand is between 2.3 and 3.0, the content of stone powder in the artificial sand is 4 percent, and the artificial sand comprises graded artificial sand and 1.18-2.36 mm artificial sand in the following mass ratio: 600 μm-1.18mm artificial sand: 300-600 μm artificial sand: 150-300 μm artificial sand: the artificial sand with the particle size of below 150 mu m is 13: 24: 35: 16: 11.
the coarse aggregate comprises the following graded coarse aggregate in mass ratio, and 22-30mm coarse aggregate: 11-22 coarse aggregate: the coarse aggregate of 6-11mm is 24: 27: 14.
the fine aggregate comprises graded fine aggregate with the following mass ratio, and the fine aggregate with the particle size of 3-6 mm: the fine aggregate with the diameter of 0-3mm is 5: 26.
the size of the oil palm shell and the size of the steel fiber are both 0.8 mm.
The cement is Portland cement with the strength grade not lower than 42.5.
The polymerizer is a butadiene-styrene copolymer water-soluble emulsion, and the mol fraction of AMPS in the copolymer is 48%.
The water reducing agent is melamine sulfonate formaldehyde polymer water reducing agent.
The air entraining agent is rosin resin air entraining agent.
A preparation method of high-performance artificial sand concrete comprises the following specific preparation steps:
step one, preparing a mineral ginseng mixture: uniformly mixing the fly ash, the slag powder, the steel slag powder, the micro silicon powder and the mica stone powder to obtain a mineral blending material;
step two, preparing a coarse bone ginseng mixture: stirring and mixing the oil palm shells and the steel fibers by using a polyvinyl alcohol solution with the mass fraction of 20-30% to obtain a crude ginseng aggregate;
step three, preparing a dry mixture, namely mixing and stirring the coarse aggregate, the fine aggregate, the mineral aggregate, the artificial sand and the cement for 22s to obtain the dry mixture;
step four, manufacturing concrete: and mixing the dry mixture, the crude bone and ginseng mixture, water, a polymerization agent, a water reducing agent and an air entraining agent, and wet-stirring for 50s to obtain the high-performance artificial sand concrete.
Example 4
The invention relates to high-performance artificial sand concrete which comprises the following components in parts by weight: 570 parts of coarse aggregate, 410 parts of fine aggregate, 100 parts of mineral aggregate, 28 parts of coarse bone aggregate, 760 parts of artificial sand, 350 parts of cement, 170 parts of water, 0.5 part of polymerization agent, 7.5 parts of water reducing agent and 0.06 part of air entraining agent;
the mineral additive is prepared by mixing fly ash, slag powder, steel slag powder, micro silicon powder and mica stone powder, wherein the fly ash: slag powder: steel slag powder: micro silicon powder: the mass ratio of the mica stone powder is 100: 80: 13: 6: 1;
the crude bone ginseng mixture is prepared by stirring and mixing oil palm shells and steel fibers by using a polyvinyl alcohol solution with the mass fraction of 30%, wherein the weight ratio of the oil palm shells: the mass ratio of the steel fibers is 40: 1;
the fineness modulus of the artificial sand is between 2.3 and 3.0, the content of stone powder in the artificial sand is 5 percent, and the artificial sand comprises graded artificial sand and 1.18-2.36 mm artificial sand in the following mass ratio: 600 μm-1.18mm artificial sand: 300-600 μm artificial sand: 150-300 μm artificial sand: the artificial sand with the particle size of less than 150 mu m is 15: 26: 35: 17: 13.
the coarse aggregates comprise graded coarse aggregates with the following mass ratio, 22-30mm coarse aggregates: 11-22 coarse aggregate: the coarse aggregate of 6-11mm is 25: 28: 15.
the fine aggregate comprises graded fine aggregate with the following mass ratio, and the fine aggregate with the particle size of 3-6 mm: the fine aggregate of 0-3mm is 6: 26.
the size of the oil palm shell and the size of the steel fiber are both 1.0 mm.
The cement is Portland cement with the strength grade not lower than 42.5.
The polymerization agent is butadiene-styrene copolymer water-soluble emulsion, and the AMPS mole fraction in the copolymer is 60%.
The water reducing agent is melamine sulfonate formaldehyde polymer water reducing agent.
The air entraining agent is rosin resin air entraining agent.
A preparation method of high-performance artificial sand concrete comprises the following specific preparation steps:
step one, preparing a mineral ginseng mixture: uniformly mixing the fly ash, the slag powder, the steel slag powder, the micro silicon powder and the mica stone powder to obtain a mineral blending material;
step two, preparing a coarse bone ginseng mixture: stirring and mixing the oil palm shells and the steel fibers by using 30% by mass of polyvinyl alcohol solution to obtain a crude ginseng aggregate;
step three, preparing a dry mixture, namely mixing and stirring the coarse aggregate, the fine aggregate, the mineral aggregate, the artificial sand and the cement for 25s to obtain the dry mixture;
step four, manufacturing concrete: and mixing the dry mixture, the crude bone and ginseng mixture, water, a polymerization agent, a water reducing agent and an air entraining agent, and wet-mixing for 55s to obtain the high-performance artificial sand concrete.
Comparative example 1
The comparative example 1 is basically the same as the example 1, except that the high-performance artificial sand concrete of the comparative example 1 comprises the following components in parts by weight: 540 parts of coarse aggregate, 390 parts of fine aggregate, 700 parts of natural sand, 330 parts of cement, 145 parts of water, 0.1 part of polymerization agent, 5.5 parts of water reducing agent and 0.03 part of air entraining agent.
Comparative example 2
Comparative example 2 is substantially the same as example 2 except that the high-performance artificial sand concrete of comparative example 2 comprises the following components in parts by weight: 550 parts of coarse aggregate, 400 parts of fine aggregate, 90 parts of mineral ginseng material, 20 parts of coarse bone ginseng material, 720 parts of natural sand, 340 parts of cement, 155 parts of water, 0.3 part of polymerization agent, 6 parts of water reducing agent and 0.04 part of air entraining agent.
Comparative example 3
Comparative example 3 is substantially the same as example 3, except that the high-performance artificial sand concrete of comparative example 3 comprises the following components in parts by weight: 560 parts of coarse aggregate, 400 parts of fine aggregate, 95 parts of mineral aggregate, 740 parts of artificial sand, 345 parts of cement, 160 parts of water, 0.4 part of polymerization agent, 6.5 parts of water reducing agent and 0.05 part of air entraining agent.
Comparative example 4
Comparative example 4 is substantially the same as example 4 except that the high-performance artificial sand concrete of comparative example 4 comprises the following components in parts by weight: 570 parts of coarse aggregate, 410 parts of fine aggregate, 28 parts of coarse bone aggregate, 760 parts of artificial sand, 350 parts of cement, 170 parts of water, 0.5 part of polymerizing agent, 7.5 parts of water reducing agent and 0.06 part of air entraining agent.
The high-performance artificial sand concrete prepared in the above examples 1 to 4 and comparative examples 1 to 4 were subjected to performance tests, and the test results are shown in table 1.
TABLE 1 Performance test results for high Performance Artificial Sand concretes
As can be seen from the data in Table 1, the slump and the compressive strength of the high-performance artificial sand concrete are respectively tested and analyzed in the examples 1 to 4 and the comparative examples 1 to 4, the high-performance artificial sand concrete prepared by the method is stable in pouring, good in compactness, and small in slump value and slump amplitude; in addition, the compressive strength of the high-performance artificial sand concrete prepared by the invention is continuously improved along with the maintenance of the age, and the high-performance artificial sand concrete has good durability.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The high-performance artificial sand concrete is characterized by comprising the following components in parts by weight: 570 portions of coarse aggregate 540-;
the mineral additive is prepared by mixing fly ash, slag powder, steel slag powder, micro silicon powder and mica stone powder, wherein the fly ash: slag powder: steel slag powder: micro silicon powder: the mass ratio of the mica stone powder is 100: 80: 13: 6: 1;
the crude bone ginseng mixture is prepared by stirring and mixing oil palm shells and steel fibers with 20-30% of polyvinyl alcohol solution by mass percent, wherein the oil palm shells: the mass ratio of the steel fibers is 30-40: 1;
the fineness modulus of the artificial sand is between 2.3 and 3.0, the content of stone powder in the artificial sand is 3 to 5 percent, and the artificial sand comprises the graded artificial sand in parts by weight as follows:
5-15 parts of artificial sand with the diameter of 1.18-2.36 mm,
18-26 parts of 600 mu m-1.18mm artificial sand,
25 to 35 portions of artificial sand with the diameter of 300 to 600 mu m,
12-17 parts of artificial sand with the particle size of 150-300 μm,
7-13 parts of artificial sand with the particle size of less than 150 microns.
2. The high-performance artificial sand concrete according to claim 1, wherein the coarse aggregates comprise graded coarse aggregates of 22-30mm in mass ratio: 11-22 coarse aggregate: 22-25 parts of 6-11mm coarse aggregate: 25-28: 11-15.
3. The high-performance artificial sand concrete according to claim 1, wherein the fine aggregates comprise graded fine aggregates of 3-6mm in the following mass ratio: the fine aggregate with the diameter of 0-3mm is 4-6: 24-26.
4. The high-performance artificial sand concrete according to claim 1, wherein the size of the oil palm shells and the size of the steel fibers are 0.5-1.0 mm.
5. The high-performance artificial sand concrete according to claim 1, wherein the cement is portland cement with a strength grade of not less than 42.5.
6. The high-performance artificial sand concrete as claimed in claim 1, wherein the polymerization agent is a butadiene-styrene copolymer water-soluble emulsion, and the AMPS mole fraction in the copolymer is 40-60%.
7. The high-performance artificial sand concrete according to claim 1, characterized in that the water reducing agent is a melamine sulfonate formaldehyde polymer water reducing agent.
8. The high-performance artificial sand concrete according to claim 1, wherein the air-entraining agent is a rosin resin air-entraining agent.
9. The preparation method of the high-performance artificial sand concrete based on any one of claims 1 to 8 is characterized by comprising the following specific preparation steps:
step one, preparing a mineral ginseng mixture: uniformly mixing the fly ash, the slag powder, the steel slag powder, the micro silicon powder and the mica stone powder to obtain a mineral blending material;
step two, preparing a coarse bone ginseng mixture: stirring and mixing the oil palm shells and the steel fibers by using a polyvinyl alcohol solution with the mass fraction of 20-30% to obtain a crude ginseng aggregate;
step three, preparing dry blend, namely mixing and stirring the coarse aggregate, the fine aggregate, the mineral aggregate, the artificial sand and the cement for 15-25s to obtain the dry blend;
step four, manufacturing concrete: and mixing the dry mixture, the crude bone and ginseng mixture, water, a polymerization agent, a water reducing agent and an air entraining agent, and wet-stirring for 45-55s to obtain the high-performance artificial sand concrete.
10. The method for preparing the high-performance artificial sand concrete according to claim 9, wherein the high-performance artificial sand concrete is applied to manufacturing a high-strength concrete structure.
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