CN114044653A - Novel high-ductility concrete and preparation method and equipment thereof - Google Patents
Novel high-ductility concrete and preparation method and equipment thereof Download PDFInfo
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- CN114044653A CN114044653A CN202111344285.7A CN202111344285A CN114044653A CN 114044653 A CN114044653 A CN 114044653A CN 202111344285 A CN202111344285 A CN 202111344285A CN 114044653 A CN114044653 A CN 114044653A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 91
- 239000000835 fiber Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 16
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 16
- 239000003822 epoxy resin Substances 0.000 claims abstract description 14
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 239000006004 Quartz sand Substances 0.000 claims abstract description 12
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000010881 fly ash Substances 0.000 claims abstract description 12
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 10
- 239000010703 silicon Substances 0.000 claims abstract description 10
- 239000012615 aggregate Substances 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 6
- 238000005303 weighing Methods 0.000 claims abstract description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 239000013530 defoamer Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920005646 polycarboxylate Polymers 0.000 claims description 5
- 239000008030 superplasticizer Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000002994 raw material Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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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
-
- 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
- B28C5/003—Methods for mixing
- B28C5/006—Methods for mixing involving mechanical aspects
-
- 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
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- 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
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- 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
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/04—General arrangement or layout of plant the plant being mobile, e.g. mounted on a carriage or a set of carriages
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a novel high-ductility concrete and a preparation method and equipment thereof, wherein the high-ductility concrete comprises cement, water, coarse aggregate, fine aggregate, quartz sand, silica fume, fly ash, steel fiber, a defoaming agent, a water reducing agent, epoxy resin and polyvinyl alcohol fiber, and the preparation method comprises the following steps: weighing the components according to the weight parts, adding cement, coarse aggregate, fine aggregate, quartz sand, silica fume, fly ash, polyvinyl alcohol fiber and epoxy resin into a stirrer for stirring, adding an organic silicon defoaming agent, an early-strength polycarboxylic acid high-efficiency water reducing agent and part of water into the stirrer for stirring, adding steel fiber into the stirrer for stirring, and finally adding the rest water into the stirrer for stirring to obtain the high-ductility concrete; the equipment comprises a stirring box, supporting legs, a multi-directional high-efficiency mixing device, a feeding hopper, a discharging pipe and an electromagnetic valve. The invention relates to the technical field of concrete, and particularly provides high-ductility concrete and a preparation method and equipment thereof.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to novel high-ductility concrete and a preparation method and equipment thereof.
Background
The concrete is artificial stone which is prepared by taking cement as a main cementing material, adding water, sand, stones and chemical additives and mineral admixtures if necessary, mixing the materials according to a proper proportion, uniformly stirring, densely forming, curing and hardening. The existing concrete is easily affected by the external environment to cause the micro-crack in the concrete to expand, harmful substances invade to cause the concrete to deteriorate, the durability of the concrete is reduced, and the service life of a concrete structure is affected; meanwhile, the compression-resistant elastic modulus of the existing concrete is low, and the compression strength and the bending strength have further improved space.
Disclosure of Invention
In view of the above situation, the present invention provides a novel high ductility concrete, a method for preparing the same, and an apparatus thereof.
The application provides high-ductility concrete which comprises the following components in parts by weight: 340 parts of cement, 105 parts of water, 175 parts of coarse aggregate, 385 parts of 585 parts of coarse aggregate, 300 parts of fine aggregate, 215 parts of quartz sand, 80-135 parts of silica fume, 255 parts of fly ash, 195 parts of steel fiber, 6-12 parts of defoaming agent, 5-10 parts of water reducing agent, 16-30 parts of epoxy resin and 25-35 parts of polyvinyl alcohol fiber.
Further, the water reducing agent is an early-strength type polycarboxylic acid high-efficiency water reducing agent.
Further, the defoaming agent is a silicone defoaming agent.
Further, the steel fiber had a length of 312mm, a diameter of 30 μm, a tensile strength of 1800MPa, an elastic modulus of 215GPa, and a density of 7800 kg/m.
Further, the particle size range of the fine aggregate is 1-3mm, and the particle size range of the coarse aggregate is 5-8 mm.
The invention with the structure has the following beneficial effects: the tensile bending strength of concrete can be effectively enhanced by adding the steel fiber, the organic silicon defoamer, the water reducing agent, the epoxy resin and the polyvinyl alcohol fiber, the aggregate can be prevented from sinking and separating in the mixing process, communicated gaps formed by bleeding are reduced, the strength and the impermeability of concrete are improved, and in addition, the polyvinyl alcohol fiber can be better combined with the fine aggregate and the coarse aggregate by controlling the particle size range of the coarse aggregate and the fine aggregate, so that the mechanical strength of the concrete can be further enhanced.
The application provides a preparation method of high-ductility concrete, which comprises the following steps:
the method comprises the following steps: weighing the components in parts by weight;
step two: adding cement, coarse aggregate, fine aggregate, quartz sand, silica fume, fly ash, polyvinyl alcohol fiber and epoxy resin into novel high-ductility concrete equipment, stirring at the rotation speed of 200 plus materials for 240r/min, and stirring for 5-10 min;
step three: adding the organic silicon defoaming agent, the early-strength type polycarboxylate superplasticizer and 2/3 water into novel high-ductility concrete equipment, stirring at the rotation speed of 360-380r/min for 3-5 min;
step four: then adding the steel fiber into novel high-ductility concrete equipment for stirring at the rotating speed of 180-200r/min for 5-7 min;
step five: adding the residual 1/3 water into a novel high-ductility concrete device, stirring at the rotating speed of 80-100r/min for 0.5-1 h to obtain the high-ductility concrete.
The beneficial effects obtained by adopting the technical scheme are as follows: the steel fiber adopted by the invention is not easy to stir into lumps in the preparation process of the concrete, so that the concrete is easy to paint and construct, the workability of the concrete is further improved, and the steel fiber can replace a stirrup, so that the shearing resistance of the concrete is improved.
The application provides a novel high ductility concrete equipment, including agitator tank, landing leg, diversified high-efficient mixing arrangement, go into hopper, discharging pipe and solenoid valve, the agitator tank is located on the landing leg, be equipped with drive chamber and stirring chamber in the agitator tank, go into the hopper locate on the agitator tank and with stirring chamber intercommunication, the discharging pipe locate on the agitator tank and with stirring chamber intercommunication, the solenoid valve is located on the discharging pipe, diversified high-efficient mixing arrangement locates in the agitator tank.
Further, the multi-azimuth high-efficiency mixing device comprises a bidirectional threaded rod, a linkage assembly, a first sleeving block, a second sleeving block, a limiting rod, a first gear, two sets of first racks, a first stirring shaft, helical blades and a second stirring shaft, wherein the bidirectional threaded rod is rotatably arranged in a driving cavity, the limiting rod is arranged in the driving cavity, the limiting rod is symmetrically provided with two sets of limiting rods, the first sleeving block and the second sleeving block are respectively clamped, slidably and sleeved on the two sets of limiting rods, the first gear is provided with two sets of first gears, the two sets of first gears are respectively rotatably arranged on the first sleeving block and the second sleeving block through a first gear shaft, the first racks are arranged in the driving cavity, the two sets of first racks are respectively meshed with the two sets of first gears, the first stirring shaft is arranged on the first gear, a first through groove is arranged in the driving cavity, the first stirring shaft extends into the stirring cavity and is rotatably and slidably arranged in the first through groove, the linkage assembly is arranged on the bidirectional threaded rod, the first sleeve joint block and the second sleeve joint block, the linkage assembly comprises a second stirring shaft, a third sleeve joint block, a first rotating rod, a second gear and a second rack, the third sleeve joint block is slidably sleeved on the bidirectional threaded rod, the third sleeve joint block is in threaded engagement with the bidirectional threaded rod, two ends of the first rotating rod are respectively hinged on the third sleeve joint block and the first sleeve joint block, two ends of the second rotating rod are respectively hinged on the third sleeve joint block and the second sleeve joint block, the second rack is arranged in the driving cavity, the second gear is rotatably arranged on the third sleeve joint block through a second gear shaft and is meshed with the second rack, the second stirring shaft is arranged on the second gear, a second through groove is arranged in the driving cavity, the second stirring shaft extends into the stirring cavity through the second through groove and is rotatably and slidably arranged in the second through groove, helical blades are arranged on the first stirring shaft and the second stirring shaft.
Furthermore, a sealing cover is hinged on the feeding hopper.
Further, be equipped with the motor on the agitator tank, the rotatory drive chamber that runs through of one end of two-way threaded rod is located on the output shaft of motor, the motor is positive and negative motor.
Furthermore, the supporting legs are provided with self-locking universal wheels.
Furthermore, the linkage assemblies are symmetrically provided with two groups.
Raw materials in the stirring box can be fully mixed by arranging the multi-azimuth high-efficiency mixing device, so that the stirring effect is better, the mixing efficiency is higher, the mixing is more uniform, and the product quality of high-ductility concrete is promoted.
Adopt the beneficial effect that above-mentioned structure this application was obtained as follows: the shear resistance of the concrete can be effectively improved by adding the steel fiber; the tensile bending strength of concrete can be effectively enhanced by adding the steel fiber, the defoaming agent, the water reducing agent, the epoxy resin and the polyvinyl alcohol fiber, the aggregate sinking and segregation in the mixing process can be prevented, the communication gap formed by bleeding is reduced, and the strength and the impermeability of the concrete are improved; by controlling the particle size range of the coarse aggregate and the fine aggregate, the polyvinyl alcohol fiber is better combined with the fine aggregate and the coarse aggregate, so that the mechanical strength of the concrete can be further enhanced; raw materials in the stirring box can be fully mixed by arranging the multi-azimuth high-efficiency mixing device, so that the mixing effect is better, the mixing efficiency is higher, the mixing is more uniform, and the product quality of high-ductility concrete is promoted.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the novel high-ductility concrete equipment of the scheme;
fig. 2 is the top view of diversified high-efficient mixing arrangement in this novel high ductility concrete equipment.
Wherein, 1, the agitator tank, 2, the landing leg, 3, diversified high-efficient mixing arrangement, 4, go into the hopper, 5, the discharging pipe, 6, the solenoid valve, 7, the drive chamber, 8, the stirring chamber, 9, two-way threaded rod, 10, the linkage subassembly, 11, first cover joint block, 12, second cover joint block, 13, the gag lever post, 14, first gear, 15, first rack, 16, first (mixing) shaft, 17, helical blade, 18, second (mixing) shaft, 19, third cover joint block, 20, first dwang, 21, the second dwang, 22, the second gear, 23, the second rack, 24, sealed lid, 25, the motor, 26, from locking-type universal wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
The high-ductility concrete comprises the following components in parts by weight: 280 parts of cement, 105 parts of water, 385 parts of coarse aggregate, 300 parts of fine aggregate, 165 parts of quartz sand, 80 parts of silica fume, 175 parts of fly ash, 195 parts of steel fiber, 6 parts of organic silicon defoamer, 5 parts of early-strength polycarboxylic acid high-efficiency water reducing agent, 16 parts of epoxy resin and 25 parts of polyvinyl alcohol fiber, and the method comprises the following steps:
the method comprises the following steps: weighing the components in parts by weight;
step two: adding cement, coarse aggregate, fine aggregate, quartz sand, silica fume, fly ash, polyvinyl alcohol fiber and epoxy resin into novel high-ductility concrete equipment, stirring at the rotating speed of 200r/min for 5 min;
step three: adding an organic silicon defoaming agent, an early-strength polycarboxylate superplasticizer and 2/3 water into novel high-ductility concrete equipment, stirring at the rotating speed of 360r/min for 3 min;
step four: then adding the steel fiber into novel high-ductility concrete equipment for stirring at the rotating speed of 180r/min for 5 min;
step five: adding the residual 1/3 water into a novel high-ductility concrete device, stirring at the rotating speed of 80r/min for 0.5h, and obtaining the high-ductility concrete.
Example 2
The high-ductility concrete comprises the following components in parts by weight: 310 parts of cement, 135 parts of water, 485 parts of coarse aggregate, 350 parts of fine aggregate, 190 parts of quartz sand, 105 parts of silica fume, 215 parts of fly ash, 225 parts of steel fiber, 9 parts of organic silicon defoamer, 7 parts of early-strength polycarboxylic acid high-efficiency water reducing agent, 23 parts of epoxy resin and 27 parts of polyvinyl alcohol fiber, and the method comprises the following steps:
the method comprises the following steps: weighing the components in parts by weight;
step two: adding cement, coarse aggregate, fine aggregate, quartz sand, silica fume, fly ash, polyvinyl alcohol fiber and epoxy resin into novel high-ductility concrete equipment, stirring at the rotating speed of 220r/min for 7 min;
step three: adding an organic silicon defoaming agent, an early-strength polycarboxylate superplasticizer and 2/3 water into novel high-ductility concrete equipment, stirring at the rotation speed of 370r/min for 4 min;
step four: then adding the steel fiber into novel high-ductility concrete equipment for stirring at the rotating speed of 190r/min for 6 min;
step five: adding the residual 1/3 water into a novel high-ductility concrete device, stirring at the rotation speed of 90r/min for 0.8h, and obtaining the high-ductility concrete.
Example 3
The high-ductility concrete comprises the following components in parts by weight: 340 parts of cement, 175 parts of water, 585 parts of coarse aggregate, 400 parts of fine aggregate, 215 parts of quartz sand, 135 parts of silica fume, 255 parts of fly ash, 260 parts of steel fiber, 12 parts of organic silicon defoamer, 10 parts of early-strength polycarboxylic acid high-efficiency water reducing agent, 30 parts of epoxy resin and 35 parts of polyvinyl alcohol fiber, and the method comprises the following steps:
the method comprises the following steps: weighing the components in parts by weight;
step two: adding cement, coarse aggregate, fine aggregate, quartz sand, silica fume, fly ash, polyvinyl alcohol fiber and epoxy resin into novel high-ductility concrete equipment, stirring at the rotating speed of 240r/min for 10 min;
step three: adding an organic silicon defoaming agent, an early-strength polycarboxylate superplasticizer and 2/3 water into novel high-ductility concrete equipment, stirring at the rotating speed of 380r/min for 5 min;
step four: then adding the steel fiber into novel high-ductility concrete equipment for stirring at the rotating speed of 200r/min for 7 min;
step five: adding the residual 1/3 water into a novel high-ductility concrete device, stirring at the rotating speed of 100r/min for 1h to obtain the high-ductility concrete.
A novel high-ductility concrete device is used for stirring the raw materials of the examples 1-3 to realize uniform mixing of the raw materials:
as shown in fig. 1-2, a novel high-ductility concrete apparatus comprises a stirring box 1, supporting legs 2, a multi-directional high-efficiency mixing device 3, a feeding hopper 4, a discharging pipe 5 and a solenoid valve 6, wherein the stirring box 1 is arranged on the supporting legs 2, a driving cavity 7 and a stirring cavity 8 are arranged in the stirring box 1, the feeding hopper 4 is arranged on the stirring box 1 and is communicated with the stirring cavity 8, the discharging pipe 5 is arranged on the stirring box 1 and is communicated with the stirring cavity 8, the solenoid valve 6 is arranged on the discharging pipe 5, and the multi-directional high-efficiency mixing device 3 is arranged in the stirring box 1; the multi-directional high-efficiency mixing device 3 comprises a bidirectional threaded rod 9, a linkage component 10, a first sleeving block 11, a second sleeving block 12, limiting rods 13, a first gear 14, a first rack 15, a first stirring shaft 16, helical blades 17 and a second stirring shaft 18, wherein the bidirectional threaded rod 9 is rotatably arranged in a driving cavity 7, the limiting rods 13 are arranged in the driving cavity 7, two groups of limiting rods 13 are symmetrically arranged, the first sleeving block 11 and the second sleeving block 12 are respectively clamped and slidably sleeved on the two groups of limiting rods 13, the first gear 14 is provided with two groups, the two groups of first gears 14 are respectively rotatably arranged on the first sleeving block 11 and the second sleeving block 12 through first gear shafts, the first rack 15 is arranged in the driving cavity 7, the first rack 15 is provided with two groups and respectively meshed with the two groups of first gears 14, the first stirring shaft 16 is arranged on the first gear 14, a first through groove is arranged in the driving cavity 7, the first stirring shaft 16 penetrates through the first through groove and extends into the stirring cavity 8 and is rotatably and slidably arranged in the first through groove, the linkage assembly 10 is arranged on the bidirectional threaded rod 9, the first sleeve joint block 11 and the second sleeve joint block 12, the linkage assembly 10 comprises a second stirring shaft 18, a third sleeve joint block 19, a first rotating rod 20, a second rotating rod 21, a second gear 22 and a second rack 23, the third sleeve joint block 19 is slidably sleeved on the bidirectional threaded rod 9, the third sleeve joint block 19 is in threaded engagement with the bidirectional threaded rod 9, two ends of the first rotating rod 20 are respectively hinged on the third sleeve joint block 19 and the first sleeve joint block 11, two ends of the second rotating rod 21 are respectively hinged on the third sleeve joint block 19 and the second sleeve joint block 12, the second rack 23 is arranged in the driving cavity 7, the second gear 22 is rotatably arranged on the third sleeve joint block 19 through the second gear 22 and is meshed with the second rack 23, the second stirring shaft 18 is arranged on the second gear 22, a second through groove is arranged in the driving cavity 7, the second stirring shaft 18 extends into the stirring cavity 8 and is rotatably and slidably arranged in the second through groove, helical blades 17 are arranged on the first stirring shaft 16 and the second stirring shaft 18; two groups of linkage assemblies 10 are symmetrically arranged.
As shown in fig. 1, a sealing cover 24 is hinged on the feeding hopper 4; the self-locking universal wheel 26 is arranged on the supporting leg 2.
As shown in fig. 2, a motor 25 is arranged on the stirring box 1, one end of the bidirectional threaded rod 9 is rotatably arranged on an output shaft of the motor 25 through the driving cavity 7, and the motor 25 is a forward and reverse rotating motor.
When the device is used, the device is moved to a designated position by the self-locking universal wheel 26 and is locked and fixed, the feeding hopper 4 is opened, raw materials are added into the stirring cavity 8 through the feeding hopper 4, then the sealing cover 24 is covered, the motor 25 is started to drive the motor 25 to drive the bidirectional threaded rod 9 to rotate, the bidirectional threaded rod 9 drives the third sleeve connecting block 19 to slide, the third sleeve connecting block 19 drives the second gear 22 to slide, the second gear 22 and the second gear 23 are meshed, the second gear 22 rotates when the second gear 22 moves, the second gear 22 drives the second stirring shaft 18 to move and rotate, meanwhile, the third sleeve connecting block 19 drives the first rotating rod 20 and the second rotating rod 21 to rotate, and the first rotating rod 20 and the second rotating rod 21 respectively drive the first sleeve connecting block 11 and the second sleeve connecting block 12 to slide, the first gear 14 connected with the first sleeve connecting block 11 and the second sleeve connecting block 12 respectively to move, because first gear 14 and first rack 15 meshing, it also takes place to rotate itself when first gear 14 takes place to remove, first gear 14 drives first (mixing) shaft 16 and removes and rotates, it removes and rotates to drive helical blade 17 through first (mixing) shaft 16 and second (mixing) shaft 18, mix the stirring by helical blade 17 to raw materials in agitator tank 1, thereby effectively enlarge stirring range, reduce the stirring dead angle, improve stirring effect and stirring efficiency, after the stirring, open solenoid valve 6, discharge through discharging pipe 5 with the raw materials that mix can.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A high-ductility concrete is characterized in that: comprises the following components, by weight, 280-340 parts of cement, 105-175 parts of water, 385-585 parts of coarse aggregate, 300-400 parts of fine aggregate, 165-215 parts of quartz sand, 80-135 parts of silica fume, 175-255 parts of fly ash, 195-260 parts of steel fiber, 6-12 parts of defoaming agent, 5-10 parts of water reducing agent, 16-30 parts of epoxy resin and 25-35 parts of polyvinyl alcohol fiber.
2. The novel high-ductility concrete as claimed in claim 1, wherein the water reducing agent is an early-strength polycarboxylic acid high-efficiency water reducing agent.
3. The novel high ductility concrete according to claim 1, wherein the defoamer is a silicone defoamer.
4. The novel high ductility concrete according to claim 1, wherein the steel fiber has a length of 312mm, a diameter of 30 μm, a tensile strength of 1800MPa, an elastic modulus of 215GPa and a density of 7800 kg/m.
5. The novel high-ductility concrete as claimed in claim 1, wherein the fine aggregate has a particle size ranging from 1 to 3mm, and the coarse aggregate has a particle size ranging from 5 to 8 mm.
6. A preparation method of high-ductility concrete is characterized in that,
the method comprises the following steps: weighing the components in parts by weight;
step two: adding cement, coarse aggregate, fine aggregate, quartz sand, silica fume, fly ash, polyvinyl alcohol fiber and epoxy resin into novel high-ductility concrete equipment, stirring at the rotation speed of 200 plus materials for 240r/min, and stirring for 5-10 min;
step three: adding the organic silicon defoaming agent, the early-strength type polycarboxylate superplasticizer and 2/3 water into novel high-ductility concrete equipment, stirring at the rotation speed of 360-380r/min for 3-5 min;
step four: then adding the steel fiber into novel high-ductility concrete equipment for stirring at the rotating speed of 180-200r/min for 5-7 min;
step five: adding the residual 1/3 water into a novel high-ductility concrete device, stirring at the rotating speed of 80-100r/min for 0.5-1 h to obtain the high-ductility concrete.
7. The utility model provides a novel high ductility concrete's equipment, a serial communication port, novel high ductility concrete equipment includes agitator tank, landing leg, diversified high-efficient mixing arrangement, goes into hopper, discharging pipe and solenoid valve, the agitator tank is located on the landing leg, be equipped with drive chamber and stirring chamber in the agitator tank, go into the hopper locate on the agitator tank and with stirring chamber intercommunication, the discharging pipe locate on the agitator tank and with stirring chamber intercommunication, the solenoid valve is located on the discharging pipe, diversified high-efficient mixing arrangement is located in the agitator tank.
8. The novel high-ductility concrete equipment as claimed in claim 7, wherein the multi-directional high-efficiency mixing device comprises a bidirectional threaded rod, a linkage assembly, a first sleeving block, a second sleeving block, a limiting rod, a first gear, a first rack, a first stirring shaft, helical blades and a second stirring shaft, the bidirectional threaded rod is rotatably arranged in the driving cavity, the limiting rod is symmetrically provided with two sets, the first sleeving block and the second sleeving block are respectively clamped and slidably sleeved on the two sets of limiting rods, the first gear is provided with two sets, the two sets of first gears are respectively rotatably arranged on the first sleeving block and the second sleeving block through a first gear shaft, the first rack is arranged in the driving cavity, the first rack is provided with two sets and respectively meshed with the two sets of first gears, the first stirring shaft is arranged on the first gear, the driving cavity is internally provided with a first through groove, the first stirring shaft penetrates through the first through groove to extend into the stirring cavity and is rotationally and slidably arranged in the first through groove, the linkage assembly is arranged on the bidirectional threaded rod, the first sleeve joint block and the second sleeve joint block, the linkage assembly comprises a second stirring shaft, a third sleeve joint block, a first rotating rod, a second gear and a second rack, the third sleeve joint block is slidably arranged on the bidirectional threaded rod in a sleeve manner, the third sleeve joint block is in threaded engagement with the bidirectional threaded rod, two ends of the first rotating rod are respectively hinged on the third sleeve joint block and the first sleeve joint block, two ends of the second rotating rod are respectively hinged on the third sleeve joint block and the second sleeve joint block, the second rack is arranged in the driving cavity, the second gear is rotationally arranged on the third sleeve joint block through a second gear shaft and is meshed with the second rack, the second stirring shaft is arranged on the second gear, a second through groove is formed in the driving cavity, the second stirring shaft penetrates through the second through groove, extends into the stirring cavity and is arranged in the second through groove in a rotating sliding mode, and helical blades are arranged on the first stirring shaft and the second stirring shaft.
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