CN111362626A - High-performance concrete and preparation method thereof - Google Patents
High-performance concrete and preparation method thereof Download PDFInfo
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- CN111362626A CN111362626A CN202010183850.5A CN202010183850A CN111362626A CN 111362626 A CN111362626 A CN 111362626A CN 202010183850 A CN202010183850 A CN 202010183850A CN 111362626 A CN111362626 A CN 111362626A
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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
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- 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
- B28C5/0875—Mixing in separate stages involving different containers for each stage
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- 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
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- 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
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/383—Producing cellular concrete comprising stirrers to effect the mixing
- B28C5/385—Stirrers specially adapted therefor
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- 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
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/386—Plants; Systems; Methods
- B28C5/388—Methods
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- 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
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- 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
-
- 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
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
-
- 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
- C04B2111/40—Porous or lightweight materials
Abstract
The invention belongs to the technical field of concrete, and particularly relates to high-performance concrete and a preparation method thereof; comprises cement, river sand, broken stone, water, foaming board powder, fiber mixture, lignin, adhesive, concrete expanding agent, filler, glass wool, water reducing agent and building adhesive; the foaming board powder added on the basis of the existing concrete formula has light weight and better heat preservation performance, reduces the loss of indoor temperature, simultaneously, because the foaming board powder has certain deformation capacity, when water in the concrete is frozen, the foaming board powder is further compressed, the surface of the concrete cannot be skinned, the smoothness of the surface of the concrete is ensured, the glass wool has heat insulation performance, the icing phenomenon caused by the fact that cold air enters the water in the concrete is prevented, and the water reducing agent is added, so that after the water content in the concrete is reduced, the phenomenon that a small amount of water is frozen and expands less is avoided, and the skinning probability of the concrete is further reduced.
Description
Technical Field
The invention belongs to the technical field of concrete, and particularly relates to high-performance concrete and a preparation method thereof.
Background
Concrete is an engineering composite material formed by cementing aggregate into a whole by a cementing material. The cementing material is cement, the aggregate is sand and stone, and then the cementing material is mixed with water according to a certain proportion and is obtained by stirring. As a very important building material, it is widely used in civil engineering; concrete is mainly divided into two stages and states: plastic state before setting and hardening, namely fresh concrete or concrete mixture; a hard state after hardening, i.e. hardened concrete or concrete; the main advantages of concrete are: the raw materials are rich, the cost is low, the plasticity is good, the strength is high, the durability is good, and the reinforcing steel bar can be used for reinforcing; but the defects are also obvious, the dead weight is large, and the material is brittle.
Some technical schemes related to concrete also appear in the prior art, for example, chinese patent with application number 201710098518.7 discloses a concrete and a preparation method thereof, which is helpful for improving the cold resistance, stability and durability of the concrete through the interaction of fiber mixture, lignin, adhesive and concrete expanding agent, so that the concrete can still maintain good mechanical properties in cold environment and is not easy to be damaged or cracked; however, the high-performance concrete and the preparation method thereof have the advantages that the overall texture is heavier, the heat preservation effect is poor, and simultaneously, when the high-performance concrete is used, the drying solidification effect is poor under the conditions of different climates in some areas, namely high humidity or low temperature, the peeling phenomenon caused by low viscosity and falling and severe shrinkage of the concrete is easy to occur, and the stability and durability are poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides high-performance concrete and a preparation method thereof, and aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the high-performance concrete and the preparation method thereof comprise the following components in parts by weight:
cement 103 + 133 parts;
20-36 parts of river sand;
21-31 parts of gravel;
45-60 parts of water;
30-40 parts of foaming plate powder;
12-23 parts of a fiber mixture;
21-33 parts of lignin;
20-36 parts of an adhesive;
12-18 parts of a concrete expanding agent;
35-51 parts of a filler;
20-25 parts of glass wool;
15-18 parts of a water reducing agent;
the fiber mixture comprises two or more of glass fiber, polypropylene fiber and steel fiber; the adhesive comprises at least two of epoxy resin, unsaturated polyester resin and SBS modified asphalt; the filler comprises silicon powder, quartz sand and limestone; the concrete expanding agent comprises at least two of SY-T composite fiber anti-cracking agent, SY-K expansion fiber anti-cracking waterproof agent and CAL fiber composite quaternary expanding agent;
after glue is smeared on the surface of the glass wool, the glass wool is put into the foaming board powder to be rolled, so that a layer of foaming board powder layer is formed on the surface of the foaming board powder.
Because the existing concrete is easy to cause the peeling phenomenon caused by serious shrinkage when the concrete is corroded by cold air in the extremely cold environment in northeast winter, and the stability and the durability are poor, the invention mainly solves the problem that how to ensure that the synthesized concrete has stronger wind resistance and the serious shrinkage peeling phenomenon of the concrete is reduced under the corrosion of cold air; by adding the glass wool on the basis of the existing concrete formula, the glass wool has the advantages of good forming, small volume density, thermal conductivity , heat preservation and insulation, good sound absorption performance, corrosion resistance and stable chemical performance, when the glass wool is added into the concrete, a good heat insulation layer can be formed, the icing phenomenon caused by cold air entering the water inside the concrete is prevented, and a water reducing agent is added, wherein the water reducing agent is a concrete additive capable of reducing the water consumption for mixing, after the water content in the concrete is reduced, even the icing phenomenon of a small amount of water is generated, the larger volume expansion is avoided, the probability of peeling of the concrete is further reduced, the added foaming plate powder not only has lighter weight, but also has better heat preservation performance, the loss of indoor temperature is reduced, meanwhile, because the foaming plate powder has certain deformation capacity, when the water in the concrete is frozen, the foam board powder can be further compressed, so that the formed ice blocks can not peel the surface of the concrete, and the smoothness of the surface of the concrete is ensured.
Preferably, 15-20 parts of construction adhesive is further included, and the construction adhesive is used for reducing the probability of cold air entering; after the building glue is added into the concrete, the surface of the formed concrete can be smoother and smoother, cold air is prevented from entering the concrete, and after the building glue is added, the concrete has higher viscosity and stronger anti-cracking performance.
A preparation method of high-performance concrete comprises the following steps:
s1: adding cement, river sand and glass wool in corresponding parts by weight into a stirring tank, and uniformly mixing to obtain a first mixture; firstly, stirring raw materials which account for a large part, fully mixing the raw materials, and reducing the stirring time after other raw materials are added subsequently;
s2: fully mixing the fiber mixture, the lignin, the filler, the water reducing agent, the glass wool adhered with the foam board powder and the rest foam board powder in corresponding weight parts to form a second mixture, adding the second mixture into a stirring tank, and uniformly mixing the second mixture with the first mixture obtained in the step S1 to form a third mixture; under the condition of not adding water, the fiber mixture, the lignin, the filler and the water reducing agent are uniformly mixed, so that the mixing efficiency is improved, and the energy consumption is saved;
s3: adding the adhesive and the concrete expanding agent in corresponding parts by weight into water, fully mixing, adding into the third mixture while stirring, simultaneously adding the broken stone, fully mixing, forming and maintaining to obtain the concrete expanding agent; adding the mixture into the third mixture while stirring, so that the mixing time is saved;
the stirring tank in the S1 comprises a tank body, wherein a motor is arranged at the bottom of the tank body, a stirring shaft is fixedly connected to the top of an output shaft of the motor, a plurality of groups of stirring plates are arranged on the stirring shaft in the vertical direction, a plurality of separating discs are fixedly connected to the inner wall of the tank body, the tank body is divided into a plurality of spaces by the plurality of separating discs from top to bottom, at least one group of stirring plates 4 is arranged in each space, and the separating discs are close to the bottoms of the spaces; the top end of the stirring shaft is fixedly connected with a conical groove which is arranged at the top of the tank body; a plurality of channels are formed in the stirring shaft from the top to the bottom, the bottom ends of the channels are respectively close to the upper surfaces of the separating discs, the bottom end of one channel extends to a position close to the bottom of the inner wall of the tank body, a through hole is formed in the stirring shaft at the bottom end of each channel, and the channels are communicated with the inside of the tank body through the through holes; a discharge door is arranged at the position, at the same height as each through hole, on the tank body; when the concrete stirring device works, because the existing concrete stirring device stirs the concrete raw materials and stands still for a period of time after the stirring is finished, the materials with higher weight, such as sand, and the like, can be precipitated into the interior, the stirring device needs to be started again for stirring, the working time is prolonged, and the operation cost is increased; therefore, the stirring tank mainly solves the problems of reducing the sediment of the sand, ensuring that enough sand exists in the poured concrete, ensuring the stability of the working time and reducing the operation cost; the specific measures and working processes are as follows: the tank body is divided into a plurality of parts by arranging a plurality of separating discs in the tank body, then the motor is started to drive the stirring shaft, the stirring shaft drives the stirring plate to stir, required gravels are put into the conical groove, because a plurality of channels with different heights are respectively connected with the parts separated by the tank body through the through holes, the gravels falling through the channels finally can enter the parts of the tank body through the through holes, in the stirring process, as the powder of the foaming plate has certain deformation, after the powder of the foaming plate is mixed in concrete, when the concrete is stirred by stirring the plate, the powder of the foaming plate can have certain buffer performance on the stirring plate, the impact force between the stirring plate and the concrete is reduced, simultaneously, the noise generated when the concrete is stirred is reduced, after the stirring is finished, the discharging doors are opened in sequence, the concrete coming out from each discharging door has enough raw materials such as the gravels, and the stability of the working time is ensured, the operation cost is reduced; meanwhile, the sand and stone are placed into the conical groove and enter the stirred raw materials from the through hole when falling down through the channel, and the sand and stone can uniformly enter the stirred raw materials due to the fact that the diameter of the through hole is fixed, so that poor stirring effect is prevented when the sand and stone are all placed; after glue is paintd on the cotton surface of glass, put into the foaming board powder and roll, make foaming board powder surface form one deck foaming board powder layer, can be carrying out the in-process of stirring, make the foaming board powder can follow the cotton even and other material mixtures of glass, prevent that the foaming board powder from floating to the concrete upper strata.
Preferably, a fixed plate is fixedly connected with the bottom of each separating disc and the bottom of the tank body, a push rod is arranged in each fixed plate, one end of each push rod is fixedly connected in each fixed plate through a spring, the other end of each push rod is fixedly connected with a frustum, and the frustum and the adjacent through hole are positioned at the same height; the pushing rod is hinged with a plurality of movable plates, the free ends of the movable plates extend out of the fixed plate, and the hinged ends of the movable plates are closer to the inner wall of the tank body; at (mixing) shaft pivoted in-process, the through-hole is every when the frustum, the frustum is under the impetus of spring, the frustum can be promoted by the catch bar and enter into the through-hole, the through-hole no longer has the raw materials to flow, when the (mixing) shaft drives the through-hole and breaks away from the frustum, the frustum can be promoted by the (mixing) shaft, the catch bar is promoted by the frustum, and then the catch bar can drive the free end swing of fly leaf, stir the raw and other materials that lie in the bottom, carry out the stirring of raw and other materials with dialling the board together, stirring efficiency has been improved.
Preferably, the bottom of the shifting plate is inserted with a push plate, the bottom of the push plate is a horizontally placed triangular prism, and only one edge of the triangular prism is positioned at the bottommost part; drive at the (mixing) shaft and dial the board and rotate the in-process that stirs raw and other materials, when dialling the push pedal of board bottom through fixed plate and fly leaf, can promote the fly leaf on the one hand and remove, make the fly leaf stir raw and other materials once more, improve and stir the effect, on the other hand, the push pedal can be blockked by the fixed plate and promote to rise when the fixed plate is crossed the fixed plate and is received self gravity and descend, can have the extrusion effect to raw and other materials, has further improved the stirring effect to raw and other materials.
Preferably, one surface of the movable plate, which is opposite to the push rod, is an arc surface, and the arc surface is subjected to polishing treatment and is used for reducing friction with the push plate; the one side of fly leaf back to the catch bar is the arcwall face, after the frustum that the spring promoted catch bar tip inserted the through-hole, the (mixing) shaft rotated and promoted the frustum when moving out from the through-hole, the catch bar can be promoted, the catch bar drives the one side of fly leaf back to the catch bar and contacts and stir raw and other materials, make the raw and other materials of stirring along the arcwall face direction, reduce the rotation resistance of fly leaf, and then reduce the instantaneous resistance of (mixing) shaft, the rotation that makes the (mixing) shaft is in stable state.
The invention has the technical effects and advantages that:
1. according to the high-performance concrete and the preparation method thereof provided by the invention, on the basis of the existing concrete formula, the added foaming board powder not only has light weight, but also has better heat preservation performance, and the loss of indoor temperature is reduced.
2. The invention provides high-performance concrete and a preparation method thereof.A plurality of separating discs are arranged in a tank body, the tank body is divided into a plurality of parts, then a motor is started to drive a stirring shaft, the stirring shaft drives a shifting plate to stir, needed gravels are put into a conical groove, a plurality of channels with different heights are respectively connected with the parts of the tank body after being divided through holes, finally the gravels falling through the channels can enter the parts of the tank body through the through holes, after the stirring is finished, discharge doors are sequentially opened, the concrete coming out of each discharge door has enough raw materials such as the gravels and the like, the stability of the working time is ensured, the operation cost is reduced, meanwhile, the powder of a foaming plate plays a role in protecting the shifting plate, and the noise generated during the stirring is reduced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic perspective view of a blender jar useful in the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is a top cross-sectional view of the agitator tank;
FIG. 5 is an enlarged view of portion B of FIG. 4 according to the present invention;
in the figure: the tank comprises a tank body 1, a motor 2, a stirring shaft 3, a shifting plate 4, a separating disc 5, a conical groove 6, a channel 7, a discharge door 8, a through hole 9, a fixing plate 10, a push rod 11, a spring 12, a frustum 13, a movable plate 14 and a push plate 15.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in figures 1-5, the high-performance concrete and the preparation method thereof comprise the following components in parts by weight:
cement 103 + 133 parts;
20-36 parts of river sand;
21-31 parts of gravel;
45-60 parts of water;
30-40 parts of foaming plate powder;
12-23 parts of a fiber mixture;
21-33 parts of lignin;
20-36 parts of an adhesive;
12-18 parts of a concrete expanding agent;
35-51 parts of a filler;
20-25 parts of glass wool;
15-18 parts of a water reducing agent;
the fiber mixture comprises two or more of glass fiber, polypropylene fiber and steel fiber; the adhesive comprises at least two of epoxy resin, unsaturated polyester resin and SBS modified asphalt; the filler comprises silicon powder, quartz sand and limestone; the concrete expanding agent comprises at least two of SY-T composite fiber anti-cracking agent, SY-K expansion fiber anti-cracking waterproof agent and CAL fiber composite quaternary expanding agent;
after glue is smeared on the surface of the glass wool, the glass wool is put into the foaming board powder to be rolled, so that a layer of foaming board powder layer is formed on the surface of the foaming board powder.
Because the existing concrete is easy to cause the peeling phenomenon caused by serious shrinkage when the concrete is corroded by cold air in the extremely cold environment in northeast winter, and the stability and the durability are poor, the invention mainly solves the problem that how to ensure that the synthesized concrete has stronger wind resistance and the serious shrinkage peeling phenomenon of the concrete is reduced under the corrosion of cold air; by adding the glass wool on the basis of the existing concrete formula, the glass wool has the advantages of good forming, small volume density, thermal conductivity , heat preservation and insulation, good sound absorption performance, corrosion resistance and stable chemical performance, when the glass wool is added into the concrete, a good heat insulation layer can be formed, the icing phenomenon caused by cold air entering the water inside the concrete is prevented, and a water reducing agent is added, wherein the water reducing agent is a concrete additive capable of reducing the water consumption for mixing, after the water content in the concrete is reduced, even the icing phenomenon of a small amount of water is generated, the larger volume expansion is avoided, the probability of peeling of the concrete is further reduced, the added foaming plate powder not only has lighter weight, but also has better heat preservation performance, the loss of indoor temperature is reduced, meanwhile, because the foaming plate powder has certain deformation capacity, when the water in the concrete is frozen, the foam board powder can be further compressed, so that the formed ice blocks can not peel the surface of the concrete, and the smoothness of the surface of the concrete is ensured.
15-20 parts of building glue is also included, and the building glue is used for reducing the probability of cold air entering; after the building glue is added into the concrete, the surface of the formed concrete can be smoother and smoother, cold air is prevented from entering the concrete, and after the building glue is added, the concrete has higher viscosity and stronger anti-cracking performance.
Aiming at the influence of the content of each component of the concrete on the performance, the following components are selected for carrying out the experiment:
example 1
115 parts of cement, 30 parts of river sand, 25 parts of broken stone, 50 parts of water, 20 parts of a fiber mixture, 30 parts of lignin, 30 parts of an adhesive, 30 parts of a concrete expanding agent and 40 parts of a filler;
example 2
115 parts of cement, 30 parts of river sand, 25 parts of broken stone, 50 parts of water, 20 parts of a fiber mixture, 30 parts of lignin, 30 parts of an adhesive, 12 parts of a concrete expanding agent, 40 parts of a filler, 25 parts of glass wool, 18 parts of a water reducing agent and 18 parts of a building adhesive;
example 3
115 parts of cement, 30 parts of river sand, 25 parts of broken stone, 50 parts of water, 20 parts of a fiber mixture, 30 parts of lignin, 30 parts of an adhesive, 12 parts of a concrete expanding agent, 40 parts of a filler, 22 parts of glass wool, 17 parts of a water reducing agent and 17 parts of a building adhesive;
the experimental data are as follows:
and (4) experimental conclusion: through analysis of experimental data, after the glass wool and the water reducing agent are added in the embodiment 2 and the embodiment 3, compared with the condition that the glass wool and the water reducing agent are not added in the embodiment 1, the skinning of the formed concrete is obviously reduced, and the anti-freezing effect is obvious, and compared with the embodiment 3, in the condition that the proportion of the glass wool and the water reducing agent is obviously improved, the difference of the skinning area between the glass wool and the water reducing agent can be almost ignored, and under the condition of comprehensively considering the cost and the effect, the concrete proportion selected from the embodiment 3 is proper.
A preparation method of high-performance concrete comprises the following steps:
s1: adding cement, river sand and glass wool in corresponding parts by weight into a stirring tank, and uniformly mixing to obtain a first mixture; firstly, stirring raw materials which account for a large part, fully mixing the raw materials, and reducing the stirring time after other raw materials are added subsequently;
s2: fully mixing the fiber mixture, the lignin, the filler, the water reducing agent, the glass wool adhered with the foam board powder and the rest foam board powder in corresponding weight parts to form a second mixture, adding the second mixture into a stirring tank, and uniformly mixing the second mixture with the first mixture obtained in the step S1 to form a third mixture; under the condition of not adding water, the fiber mixture, the lignin, the filler and the water reducing agent are uniformly mixed, so that the mixing efficiency is improved, and the energy consumption is saved;
s3: adding the adhesive and the concrete expanding agent in corresponding parts by weight into water, fully mixing, adding into the third mixture while stirring, simultaneously adding the broken stone, fully mixing, forming and maintaining to obtain the concrete expanding agent; adding the mixture into the third mixture while stirring, so that the mixing time is saved;
the stirring tank in the S1 comprises a tank body 1, wherein a motor 2 is arranged at the bottom of the tank body 1, a stirring shaft 3 is fixedly connected to the top of an output shaft of the motor 2, a plurality of groups of stirring plates 4 are arranged on the stirring shaft 3 along the vertical direction, a plurality of separating discs 5 are fixedly connected to the inner wall of the tank body 1, the tank body 1 is divided into a plurality of spaces by the plurality of separating discs 5 from top to bottom, at least one group of stirring plates 4 is arranged in each space, and the separating discs 5 are close to the bottoms of the spaces; the top end of the stirring shaft 3 is fixedly connected with a conical groove 6, and the conical groove 6 is arranged at the top of the tank body 1; a plurality of channels 7 are formed in the stirring shaft 3 from the top to the bottom, the bottom ends of the channels 7 are respectively close to the upper surfaces of the separating discs 5, the bottom end of one channel 7 extends to a position close to the bottom of the inner wall of the tank body 1, a through hole 9 is formed in the stirring shaft 3 at the bottom end of each channel 7, and the channels 7 are communicated with the inside of the tank body 1 through the through holes 9; the tank body 1 is provided with a discharge door 8 at the same height position as each through hole 9; when the concrete stirring device works, because the existing concrete stirring device stirs the concrete raw materials and stands still for a period of time after the stirring is finished, the materials with higher weight, such as sand, and the like, can be precipitated into the interior, the stirring device needs to be started again for stirring, the working time is prolonged, and the operation cost is increased; therefore, the stirring tank mainly solves the problems of reducing the sediment of the sand, ensuring that enough sand exists in the poured concrete, ensuring the stability of the working time and reducing the operation cost; the specific measures and working processes are as follows: the tank body 1 is divided into a plurality of parts by arranging a plurality of separating discs 5 in the tank body 1, then the motor 2 is started to drive the stirring shaft 3, the stirring shaft 3 drives the stirring plate 4 to stir, needed gravels are put into the conical groove 6, a plurality of channels 7 with different heights are respectively connected with each part of the tank body 1 after being separated through the through holes 9, in the stirring process, since the foaming plate powder has certain deformation, after the foaming plate powder is mixed in concrete, the stirring plate 4 can have certain buffer performance on the stirring plate 4 when the concrete is stirred, the impact force between the stirring plate 4 and the concrete is reduced, simultaneously, the noise generated when the concrete is stirred is reduced, the gravels falling through the channels 7 finally enter each part of the tank body 1 through the through holes 9, after the stirring is finished, the discharging doors 8 are opened in sequence, the concrete coming out from each discharging door 8 has enough raw materials such as the gravels, the stability of the working time is ensured, and the operation cost is reduced; meanwhile, the sand and stone are placed in the conical groove 6 and fall through the channel 7, and enter the stirred raw materials from the through hole 9, and the sand and stone can uniformly enter the stirred raw materials due to the fact that the diameter of the through hole 9 is fixed, so that poor stirring effect is prevented when the sand and stone are all placed in the conical groove; after glue is paintd on the cotton surface of glass, put into the foaming board powder and roll, make foaming board powder surface form one deck foaming board powder layer, can be carrying out the in-process of stirring, make the foaming board powder can follow the cotton even and other material mixtures of glass, prevent that the foaming board powder from floating to the concrete upper strata.
Each separating disc 5 and the bottom of the tank body 1 are fixedly connected with a fixing plate 10, a push rod 11 is arranged in each fixing plate 10, one end of each push rod 11 is fixedly connected in each fixing plate 10 through a spring 12, the other end of each push rod 11 is fixedly connected with a frustum 13, and each frustum 13 and the adjacent through hole 9 are at the same height; a plurality of movable plates 14 are hinged on the pushing rod 11, the free ends of the movable plates 14 extend out of the fixed plate 10, and the hinged ends of the movable plates 14 are closer to the inner wall of the tank body 1; at (mixing) shaft 3 pivoted in-process, through-hole 9 is every when through frustum 13, frustum 13 is under spring 12's impetus, frustum 13 can be promoted by catch bar 11 and enter into in the through-hole 9, through-hole 9 no longer has the raw materials to flow, when (mixing) shaft 3 drives through-hole 9 and breaks away from frustum 13, frustum 13 can be promoted by (mixing) shaft 3, catch bar 11 is promoted by frustum 13, and then catch bar 11 can drive the free end swing of fly leaf 14, stir the raw and other materials that lie in the bottom, carry out the stirring of raw and other materials with dialling board 4 together, the stirring efficiency is improved.
The bottom of the poking plate 4 is inserted with a push plate 15, the bottom of the push plate 15 is a horizontally placed triangular prism, and only one edge of the triangular prism is positioned at the bottommost part; drive at (mixing) shaft 3 and dial board 4 and rotate the in-process that stirs raw and other materials, dial push pedal 15 bottom board 4 when fixed plate 10 and fly leaf 14, can promote fly leaf 14 on the one hand and remove, make fly leaf 14 stir raw and other materials once more, improve and stir the effect, on the other hand, push pedal 15 is when fixed plate 10, can be blockked by fixed plate 10 and promote to rise, when fixed plate 10 receives self gravity decline over fixed plate 10, can have the extrusion effect to raw and other materials, the stirring effect to raw and other materials has further been improved.
One surface of the movable plate 14, which is opposite to the push rod 11, is an arc-shaped surface, and the arc-shaped surface is subjected to polishing treatment and is used for reducing friction with the push plate 15; the one side of fly leaf 14 back to catch bar 11 is the arcwall face, after spring 12 promoted the frustum 13 of catch bar 11 tip and inserted through-hole 9, (mixing) shaft 3 rotates and promotes when frustum 13 moves out from through-hole 9, catch bar 11 can be promoted, catch bar 11 drives fly leaf 14 back to the one side of catch bar 11 and contact with raw and other materials and stir raw and other materials, make the raw and other materials of stirring lead along the arcwall face, reduce the rotation resistance of fly leaf 14, and then reduce the instantaneous resistance of (mixing) shaft 3, make the rotation of (mixing) shaft 3 be in stable condition.
When the concrete stirring device works, because the existing concrete stirring device stirs the concrete raw materials and stands still for a period of time after the stirring is finished, the materials with higher weight, such as sand, and the like, can be precipitated into the interior, the stirring device needs to be started again for stirring, the working time is prolonged, and the operation cost is increased; therefore, the stirring tank mainly solves the problems of reducing the sediment of the sand, ensuring that enough sand exists in the poured concrete, ensuring the stability of the working time and reducing the operation cost; the specific measures and working processes are as follows: the tank body 1 is divided into a plurality of parts by arranging a plurality of separating discs 5 in the tank body 1, then the motor 2 is started to drive the stirring shaft 3, the stirring shaft 3 drives the stirring plate 4 to stir, needed gravels are put into the conical groove 6, a plurality of channels 7 with different heights are respectively connected with each part of the tank body 1 after being separated through the through holes 9, finally the gravels falling through the channels 7 can enter each part of the tank body 1 through the through holes 9, in the stirring process, since the foaming plate powder has certain deformation, after the foaming plate powder is mixed in the concrete, when the stirring plate 4 stirs the concrete, the foaming plate powder can have certain buffer performance on the stirring plate 4, the impact force between the stirring plate 4 and the concrete is reduced, the noise generated when the concrete is stirred is reduced, after the stirring is finished, the discharging doors 8 are opened in sequence, and the concrete coming out from each discharging door 8 has enough raw materials such as the gravels and the like, the stability of the working time is ensured, and the operation cost is reduced; meanwhile, the sand and stone are placed in the conical groove 6 and fall through the channel 7, and enter the stirred raw materials from the through hole 9, and the sand and stone can uniformly enter the stirred raw materials due to the fact that the diameter of the through hole 9 is fixed, so that poor stirring effect is prevented when the sand and stone are all placed in the conical groove; after glue is paintd on the cotton surface of glass, put into the foaming board powder and roll, make foaming board powder surface form one deck foaming board powder layer, can be carrying out the in-process of stirring, make the foaming board powder can follow the cotton even and other material mixtures of glass, prevent that the foaming board powder from floating to the concrete upper strata.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A high-performance concrete is characterized in that: the composition comprises the following components in parts by weight:
cement 103 + 133 parts;
20-36 parts of river sand;
21-31 parts of gravel;
45-60 parts of water;
30-40 parts of foaming plate powder;
12-23 parts of a fiber mixture;
21-33 parts of lignin;
20-36 parts of an adhesive;
12-18 parts of a concrete expanding agent;
35-51 parts of a filler;
20-25 parts of glass wool;
15-18 parts of a water reducing agent;
the fiber mixture comprises two or more of glass fiber, polypropylene fiber and steel fiber; the adhesive comprises at least two of epoxy resin, unsaturated polyester resin and SBS modified asphalt; the filler comprises silicon powder, quartz sand and limestone; the concrete expanding agent comprises at least two of SY-T composite fiber anti-cracking agent, SY-K expansion fiber anti-cracking waterproof agent and CAL fiber composite quaternary expanding agent.
After glue is smeared on the surface of the glass wool, the glass wool is put into the foaming board powder to be rolled, so that a layer of foaming board powder layer is formed on the surface of the foaming board powder.
2. The high-performance concrete and the preparation method thereof according to claim 1, wherein the concrete comprises the following components in percentage by weight: the building adhesive also comprises 15-20 parts of the building adhesive, and the building adhesive is used for reducing the probability of cold air entering.
3. A method for producing a high-performance concrete, which is applied to the high-performance concrete according to any one of claims 1 to 2, characterized in that: the method comprises the following steps:
s1: adding cement, river sand and glass wool in corresponding parts by weight into a stirring tank, and uniformly mixing to obtain a first mixture;
s2: fully mixing the fiber mixture, the lignin, the filler, the water reducing agent, the glass wool adhered with the foam board powder and the rest foam board powder in corresponding weight parts to form a second mixture, adding the second mixture into a stirring tank, and uniformly mixing the second mixture with the first mixture obtained in the step S1 to form a third mixture;
s3: adding the adhesive and the concrete expanding agent in corresponding parts by weight into water, fully mixing, adding into the third mixture while stirring, simultaneously adding the broken stone, fully mixing, forming and maintaining to obtain the concrete expanding agent;
the stirring tank in the S1 comprises a tank body (1), wherein a motor (2) is arranged at the bottom of the tank body (1), a stirring shaft (3) is fixedly connected to the top of an output shaft of the motor (2), a plurality of groups of shifting plates (4) are arranged on the stirring shaft (3) along the vertical direction, a plurality of separating discs (5) are fixedly connected to the inner wall of the tank body (1), the tank body (1) is divided into a plurality of spaces by the plurality of separating discs (5) from top to bottom, at least one group of shifting plates (4) is arranged in each space, and the separating discs (5) are close to the bottoms of the spaces; the top end of the stirring shaft (3) is fixedly connected with a conical groove (6), and the conical groove (6) is arranged at the top of the tank body (1); a plurality of channels (7) are formed in the stirring shaft (3) from the top to the bottom, the bottom ends of the channels (7) are respectively close to the upper surfaces of the separation discs (5), the bottom end of one channel (7) extends to a position close to the bottom of the inner wall of the tank body (1), a through hole (9) is formed in the stirring shaft (3) at the bottom end of each channel (7), and the channels (7) are communicated with the inside of the tank body (1) through the through holes (9); the tank body (1) is provided with a discharge door (8) at the same height position with each through hole (9).
4. The method for preparing high-performance concrete according to claim 3, wherein the method comprises the following steps: each separating disc (5) and the bottom of the tank body (1) are fixedly connected with a fixing plate (10), a pushing rod (11) is arranged inside each fixing plate (10), one end of each pushing rod (11) is fixedly connected inside each fixing plate (10) through a spring (12), the other end of each pushing rod (11) is fixedly connected with a frustum (13), and each frustum (13) and the adjacent through hole (9) are located at the same height; the push rod (11) is hinged with a plurality of movable plates (14), the free ends of the movable plates (14) extend out of the fixed plate (10), and the hinged ends of the movable plates (14) are closer to the inner wall of the tank body (1).
5. The method for preparing high-performance concrete according to claim 4, wherein the method comprises the following steps: the bottom of the poking plate (4) is inserted with a push plate (15), the bottom of the push plate (15) is a triangular prism which is horizontally arranged, and only one side of the triangular prism is positioned at the bottommost part.
6. The method for preparing high-performance concrete according to claim 5, wherein the method comprises the following steps: the side of the movable plate (14) opposite to the push rod (11) is an arc-shaped surface, and the arc-shaped surface is subjected to polishing treatment and used for reducing friction with the push plate (15).
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