CN110482891A - A kind of anti-crack concrete and preparation method thereof - Google Patents
A kind of anti-crack concrete and preparation method thereof Download PDFInfo
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- CN110482891A CN110482891A CN201910817650.8A CN201910817650A CN110482891A CN 110482891 A CN110482891 A CN 110482891A CN 201910817650 A CN201910817650 A CN 201910817650A CN 110482891 A CN110482891 A CN 110482891A
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- Prior art keywords
- crack concrete
- polymer composite
- composite fibrous
- antimitotic agent
- fibre
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/22—Crushing mills with screw-shaped crushing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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 present invention discloses a kind of anti-crack concrete and preparation method thereof, including antimitotic agent and gel rubber material, is calculated in mass percent: the quality of antimitotic agent is the 1%~10% of gel rubber material quality；It include: polymer composite fibrous 60%~90% in antimitotic agent, surfactant 3%-8%, remaining is filler；It is described it is polymer composite fibrous be process by the polymer matrix composites of fibre reinforcement, it is described polymer composite fibrous to be enclosed with the composite fibre of at least one layer of resin for fiber reinforcement surface.Anti-crack concrete cracking resistance of the invention is good, durability is good.
Description
Technical field
The invention belongs to technical field of concrete, and in particular to a kind of anti-crack concrete and preparation method thereof.
Background technique
As the requirement of modern building and architectural engineering is higher and higher, high performance concrete is widely applied.High-performance is mixed
The core for coagulating soil is durability.Durability is insufficient, it will generates CR Critical consequence to engineering construction.General concrete engineering
Service life is about 50~100 years.The reason of concrete works are not able to satisfy life requirement due to cracked, and crackle occurs
Essentially consist in dry contraction, self-constriction and the shrinkage of concrete.
1) dry to shrink
Dry contraction is the contraction of the maturing as caused by the loss of capillary water.This contraction increases tensile stress
Add, concrete can be made just cracked before not bearing any load.All cement concretes can all be produced as age increases
Raw dry contraction or the variation of hyrate volume.
2) self-constriction
Self-constriction is shunk caused by being reduced by self-desiccation or inside concrete relative humidity, is concrete in constant temperature waterproof
Under the conditions of, the concrete macroscopic view volume due to caused by cement aquation reduce the phenomenon that.I.e. unhydrated cement and water occur
When chemical reaction, the phenomenon that volume of product is less than the above two summations, thus cracked.
3) shrinkage
A large amount of heat is released in cement hydration process, is concentrated mainly in first 7 days, the heat dissipation of inside concrete and surface
Condition is different, thus keeps concrete internal temperature relatively external high, larger temperature difference is formed, when temperature stress is more than in concrete
When outside bound stress, cooling fissure is generated.In mass concrete engineering, because shrinkage caused by radiating and cooling is more held than drying shrinkage
Easily cause to crack, and shrinkage and drying shrinkage are often while occurring.Various coolings are usually taken in mass concrete engineering
Measure reduces the amplitude of temperature rise, to reduce shrinkage, but tends not to tackle the problem at its root.
With the fast development of Chinese economy, the polymer matrix composites with fibre reinforcement are widely used.According to
Chinese composite material industry association year report, the polymer matrix composites leftover pieces total amount for the fibre reinforcement that the whole nation generates every year
No less than 1,500,000 tons, waste be no less than 6,000,000 tons, increased every year with 10% or more speedup.Traditionally to these materials
Processing method is to burn or fill, this brings huge pollution and pressure to environment and enterprise development.How by fiber reinforcement
Polymer matrix composites leftover pieces and waste mass, scale, high-valued application, this is both an economic problems, even more
One environmental problem and social concern.
Summary of the invention
To solve problems of the prior art, the purpose of the present invention is to provide a kind of anti-crack concrete and its preparations
The technical issues of method, the present invention is able to solve concrete cracking.
The technical solution adopted by the invention is as follows:
A kind of anti-crack concrete, including antimitotic agent and gel rubber material, are calculated in mass percent:
The quality of antimitotic agent is the 1%~10% of gel rubber material quality；
It include: polymer composite fibrous 60%~90% in antimitotic agent, surfactant 3%-8%, remaining is filler；
It is described it is polymer composite fibrous be process by the polymer matrix composites of fibre reinforcement, the polymer is multiple
Condensating fiber is the composite fibre that fiber reinforcement surface is enclosed at least one layer of resin.
The surfactant is anionic surfactant.
The surfactant is poly carboxylic acid modified surfactant or melamine resin modified surface active's agent.
The filler uses the mixture of one or more of flyash, miberal powder, calcium carbonate, kaolin and 4A zeolite.
The polymer matrix composites of the fibre reinforcement include glass fiber reinforced plastics product, scrap fan blade, production glass reinforced plastic
The mixture of one or more of product leftover pieces, glass felt and glass grid cloth.
The polymer composite fibrous length is 3mm~10mm.
The compression strength of the anti-crack concrete 28d is 43.5~46.5Mpa, and pressure-resisting ratio is 103%~109%；It is described
The pressure-resisting ratio of anti-crack concrete 7d is 97%~106%.
A kind of preparation method of anti-crack concrete, process are as follows:
Polymer composite fibrous, filler and surfactant are uniformly mixed, antimitotic agent is obtained；
The antimitotic agent is added in gel rubber material, uniform mixing obtains the anti-crack concrete.
The invention has the following beneficial effects:
In anti-crack concrete of the invention, including antimitotic agent and gel rubber material, it is calculated in mass percent, the quality of antimitotic agent
It is the 1%~10% of gel rubber material quality；It include: polymer composite fibrous 60%~90% in antimitotic agent, surfactant
3%-8%, remaining is filler；The polymer composite fibrous compound fibre that at least one layer of resin is enclosed with for fiber reinforcement surface
Dimension, the resin of package can prevent fibre reinforcement under certain condition in gel rubber material cement, additive, admixture this
A little alkaloid substance further occurrences chemically react, so that gel rubber material structure will not be caused to generate showing for expansion, cracking even destruction
As.In addition, polymer composite fibrous specific heat capacity and cement is close, almost synchronous progress of expanding with heat and contract with cold, the later period is not easily to fall off, because
This is conducive to prevent from cracking in anti-crack concrete because of systolic dyssynchrony, and cracking resistance is good, so that anti-crack concrete is durable
Property is good.Surfactant can make it is polymer composite fibrous evenly dispersed in anti-crack concrete, to make the compound fibre of polymer
Dimension is played a supporting role in anti-crack concrete, and will not influence the mobility and workability of anti-crack concrete.Filler exists
With two aspects of chemical action and physical action in concrete: chemical action is to improve the bonding of slurry and aggregate Interface；Object
Reason acts on the micro aggregate effect and shape effect for being primarily referred to as filler particles.Since the particle of filler is in microballon mostly, and partial size
Less than cement, the just compaction more outstanding for playing filling, lubrication, Xie Xu, disperse water etc. in concrete, these two aspects
Collective effect reduce the water consumption of concrete, workability improve, concrete is uniformly closely knit, to improve the intensity of concrete
And durability.It is polymer composite fibrous in the present invention to be process by the polymer matrix composites of fibre reinforcement therefore real
Show waste to utilize again, while alleviating pollution of the solid waste to environment.
Further, due to after hydrated cementitious, due to interionic van der Waals interaction and hydrated cementitious mineral, water
Mud essential mineral generates cohesion with different charges in hydration process, results in mortar and generates flocculent structure.Table of the invention
Face activating agent is anionic surfactant, due to the incorporation of anionic surfactant, in mortar, in surfactant
Anion-SO- ,-COO- will be in the positive charge Ca of cement particle2+Under the action of and be adsorbed on cement particle, formed expand
The ion distribution for dissipating electric double layer (Zeta potential) forms the ion distribution of diffusion electric double layer on surface, makes cement particle in electrostatic
The lower dispersion of repulsion effect, releases the irreducible water in the space grid structure formed in cement hydration process, makes mortar stream
Dynamicization.The absolute value of Zeta potential is bigger, and dispersion effect is better.The polar hydrophilic group of anionic surfactant orients
It is adsorbed in cement particle surface, is mostly constituted with hydrogen bond formation and associated water molecules along with the hydrogen bond association between hydrone
One layer of stable moisture film on cement grains surface prevents the direct contact between cement granules, increases the sliding between cement granules
Ability plays lubricating action, to further increase the mobility of slurry.Micro-bubble in cement mortar, equally by surface
The oriented attachment polar group of activating agent is wrapped up, and is made between bubble and bubble and bubble and cement granules also due to same electrical property is repelled each other
It is similar that many microballons are added between cement grains, lubricating action is also played, mobility is improved, ensure that the uniform of anti-crack concrete
Property.
Further, filler is using the mixed of one or more of flyash, miberal powder, calcium carbonate, kaolin and 4A zeolite
Object is closed, therefore the raw material sources of filler are extensive, is suitble to each place production, cost can be reduced.
Further, the polymer matrix composites of fibre reinforcement include glass fiber reinforced plastics product, scrap fan blade, production glass
The mixture of one or more of glass steel part leftover pieces, glass felt and glass grid cloth, thus the present invention be able to solve it is useless
Pollution problem of the fiber-reinforced resin matrix compound material leftover pieces and waste of abandoning to environment, problem of resource waste.
Further, polymer composite fibrous length is 3mm~10mm, therefore can preferably be divided in concrete
Dissipate and play the role of cracking resistance enhancing.
The preparation method of anti-crack concrete of the present invention is to mix polymer composite fibrous, filler and surfactant
It is even, antimitotic agent is obtained, then antimitotic agent is added in gel rubber material, uniform mixing obtains anti-crack concrete of the present invention, it is possible thereby to
Find out, preparation process is easy, feasible.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the separation device for dissociation that the present invention uses；
Fig. 2 is inswinger face pressure lid, inner vortex conical shell and taper spiral shell in the separation device for dissociation of the invention used
Spin axis perspective view of the explosion；
Fig. 3 is the structural schematic diagram for separating inner vortex conical shell in device for dissociation that the present invention uses；
Fig. 4 is the main view for separating cone-type spiral axis in device for dissociation that the present invention uses；
Fig. 5 is the left view for separating cone-type spiral axis in device for dissociation that the present invention uses；
Fig. 6 is the perspective view for separating cone-type spiral axis in device for dissociation that the present invention uses；
Fig. 7 is the structural schematic diagram for separating inswinger face pressure lid in device for dissociation that the present invention uses；
Fig. 8 is the laser capture microdissection figure of the polymer composite fibrous fine powder material that is chopped prepared by embodiment 1；
Fig. 9 is the laser capture microdissection figure of the polymer composite fibrous fine powder material that is chopped prepared by embodiment 1；
Figure 10 is the surface sweeping electron microscope of the polymer composite fibrous fine powder material that is chopped prepared by embodiment 1；
Figure 11 is the surface sweeping electron microscope of the anti-crack concrete added with antimitotic agent prepared by embodiment 1.
In figure: 1- equipment base；2- motor；3- first shaft coupling；4- gear reduction unit；5- second shaft coupling；6- is anti-
Loose round nut；7- bearing gland；8- bearing block；9- is fed feeding warehouse；10- cone-type spiral axis, 10-1- first boss, 10-1-1-
Transition part, 10-2- second boss, the first helix of 10-3-；11- inner vortex conical shell；The second helix of 11-1-；12-
Inswinger face pressure lid, 12-1- third boss, 12-2- discharge port；13- cooling water jecket；14- skin plating.
Specific embodiment
It is next with reference to the accompanying drawings and examples that the present invention is described further.
Anti-crack concrete of the invention, including antimitotic agent and gel rubber material, are calculated in mass percent:
The quality of antimitotic agent is the 1%~10% of gel rubber material quality；
It include: polymer composite fibrous 60%~90% in antimitotic agent, surfactant 3%-8%, remaining is filler；Institute
State it is polymer composite fibrous be process by the polymer matrix composites of fibre reinforcement, it is described it is polymer composite fibrous for fibre
Dimension reinforcement is coated with the composite fibre of at least one layer of resin.
As the preferred embodiment of the invention, the surfactant is anionic surfactant.
As the preferred embodiment of the invention, the surfactant is poly carboxylic acid modified surfactant or melamine tree
Rouge modified surface active's agent.
As the preferred embodiment of the invention, the filler is using flyash, miberal powder, calcium carbonate, kaolin and 4A boiling
The mixture of one or more of stone.
As the preferred embodiment of the invention, the polymer matrix composites of the fibre reinforcement include glass steel
Product, the mixing for scrapping one or more of fan blade, production glass fiber reinforced plastics product leftover pieces, glass felt and glass grid cloth
Object.
As the preferred embodiment of the invention, the polymer composite fibrous length is 3mm~10mm.
The preparation method of antimitotic agent of the present invention, process are as follows:
Polymer composite fibrous, filler and surfactant are uniformly mixed, the antimitotic agent is obtained, antimitotic agent is added
In gel rubber material, uniform mixing obtains the anti-crack concrete, and mixing, mixing method are General Physics mixed method.
Referring to Fig.1, Inventive polymers composite fibre is processed using separation device for dissociation, the separation device for dissociation packet
Include driving device, bearing block 8, feed feeding warehouse 9, cone-type spiral axis 10, inner vortex conical shell 11 and inswinger face pressure lid
12, one end of cone-type spiral axis 10 is connected with driving device by bearing block 8, and driving device can drive 10 turns of cone-type spiral axis
It is dynamic, it is fed on the warehouse of feeding warehouse 9 and offers feed inlet, feed feeding warehouse 9 is placed on cone-type spiral axis 10, is fed feeding warehouse 9
One end be installed on bearing block 8, inner vortex conical shell 11 is placed on cone-type spiral axis 10, inner vortex conical shell 11
One end is installed on the other end of feed feeding warehouse 9, and inswinger face pressure lid 12 is installed on the other end of inner vortex conical shell 11,
Cone-type spiral axis 10 stretches out in inner vortex conical shell 11 and protrudes into inswinger face pressure lid 12, sets on inswinger face pressure lid 12
There is discharge port；Cooling device is equipped with outside inner vortex conical shell 11, cooling device can use cooling water jecket 13.Referring to
Fig. 2, Fig. 4~Fig. 6, cone-type spiral axis 10 are equipped with several the first raised helix 10-3, and cone-type spiral axis 10 is in rotary table
Shape, one end that cone-type spiral axis 10 is connect with driving device are big end, and the other end is small end.Referring to figs. 2 and 3, inner vortex
The shape of 11 inner cavity of conical shell is truncated cone-shaped, and one end that inner vortex conical shell 11 and feed feeding warehouse 9 are installed is big end,
The other end is small end；11 inner surface of inner vortex conical shell is equipped with the second helix 11-1 of several protrusions；Second helix
There are gaps between 11-1 and the first helix 10-3.Referring to fig. 2, Fig. 4~Fig. 6, cone-type spiral axis 10 is close to inswinger face pressure
Uniformly distributed several second boss 10-2 on the end face of 12 one end of lid.Referring to fig. 2 and Fig. 7, inswinger face pressure lid 12 is close to taper spiral shell
The inner surface of 10 end of spin axis is set as the inner concave with 10 end adapter of cone-type spiral axis, and is evenly equipped on inner concave several
There are prepsetting gaps between third boss 12-1, second boss 10-2 and third boss 12-1.
As the preferred embodiment of the invention, 11 inner cavity taper of inner vortex conical shell and 10 taper of cone-type spiral axis
It is identical.
As the preferred embodiment of the invention, referring to fig. 2, the spiral of the second helix 11-1 and the first helix 10-3
Line is oppositely oriented, so that shear action is more preferable.
As the preferred embodiment of the invention, referring to fig. 2, Fig. 4~Fig. 6, cone-type spiral axis 10 is close to inswinger face pressure
The first helix 10-3 of 12 one end of lid gradually transits to parallel with the axis of cone-type spiral axis 10, and extends to cone-type spiral axis
10 end.
As the preferred embodiment of the invention, referring to fig. 2, Fig. 4~Fig. 6, gradually transitted in the first helix 10-3
With the axis parallel section of cone-type spiral axis 10, be evenly equipped between the first adjacent helix 10-3 on cone-type spiral axis 10 with
10 axis of cone-type spiral the axis parallel first boss 10-1 for shunting, first boss 10-1 extend to cone-type spiral axis 10
End.
As the preferred embodiment of the invention, referring to fig. 2, Fig. 4~Fig. 6, first boss 10-1 is far from cone-type spiral
The transition part 10-1-1 of one section of smooth arcuation is arranged in one end of 10 end of axis, and transition part 10-1-1 is in one section of spiral distribution in cone
On shape helical axis 10, the rotation direction of transition part 10-1-1 is identical as the rotation direction of the first helix 10-3.
As the preferred embodiment of the invention, referring to fig. 4 and Fig. 5, along the axis direction of cone-type spiral axis 10, several
In first helix 10-3, the starting point of adjacent two the first helixes differs pre-determined distance.
As the preferred embodiment of the invention, the top of all second boss 10-2 is located on same spherical surface, Suo You
The top of three boss 12-1 is located on same spherical surface, and the radius of spherical surface where at the top of second boss 10-2 and third boss 12-1 are pushed up
The radius of spherical surface is identical where portion.
As the preferred embodiment of the invention, referring to fig. 2, Fig. 5 and Fig. 7, second boss 10-2 and third boss 12-1
It is distributed in oblique cone dentation.
As the preferred embodiment of the invention, pad is equipped between inswinger face pressure lid 12 and inner vortex conical shell 11
Piece, the gasket are used to make the gap between 10 end of cone-type spiral axis and inswinger face pressure lid 12.
As the preferred embodiment of the invention, driving device include motor 2, first shaft coupling 3, gear reduction unit 4,
Second shaft coupling 5 and locking round nut 6, motor 1, gear reduction unit 2, feed feeding warehouse 9 are separately mounted to equipment base 1
On；The output shaft of motor 2 is coupled by first shaft coupling 3 with the input shaft of gear reduction unit 4, the output of gear reduction unit 4
Axis is coupled by second shaft coupling 5 and locking round nut 6 with 10 one end of cone-type spiral axis.Bearing block 8 is coupled with bearing gland 7.
The working principle that the present invention separates device for dissociation is: power is transmitted to gear by first shaft coupling 3 and subtracted by motor 2
Fast machine 4 is rotated by 4 direct connection cone-type spiral axis 10 of gear reduction unit, and the polymer matrix composites of fibre reinforcement are fed from feed
Storehouse 9 enters, and the polymer matrix composites of the polymer matrix composites fibre reinforcement of fibre reinforcement are being fed in feeding warehouse 9
It is ceaselessly pushed and is compressed by high pressure forward under the motive force of cone-type spiral axis 10, the resin base of fibre reinforcement is compound
Material generates rubbing, shearing and separation effect while compression is marched forward, with contacting at 11 inner wall of inner vortex conical shell
Working condition, the polymer matrix composites of fibre reinforcement are synchronous to generate with axial force while by axial compression power
Direction is the normal direction shearing force of axis, the collective effect of the two power to enbrittle feature resin matrix with have toughness special
Separation crackle between the fibre reinforcement of sign extends from inside to outside from the expansion of the interface of two kinds of materials, finally by fiber reinforcement
Body separates from matrix, dissociates and, and fibre reinforcement Shanghai at this time is enclosed at least one layer of resin；The present invention passes through adjusting
Gap size between the end of conical screw axis and inswinger face pressure lid spherical shape adjusts the axial length for being separated, being dissociated.This
With traditional milling machinery device by collide or the random stress that separates and make matrix and two kinds of materials of fiber in proportion, suspension
It spends, is completely different with the pulverized mechanism of partial size.
When needing to adjust product fineness, pad is added between inner arc spherical surface gland 12 and inner vortex conical shell 11
Piece, and then the gap between taper upset end portion and inswinger face pressure lid spherical is adjusted, treating capacity is big and fine when gap is big
It is long to tie up length, gap hour powder treating capacity is small and fibre length is short.
Inventive polymers composite fibre using separation device for dissociation processed, be arranged on cone-type spiral axis several it is convex
The first helix risen can push glass reinforced plastic raw material to advance in cone-type spiral axis rotation process, reach the mesh of friction feeding
's；Cone-type spiral axis is in truncated cone-shaped, and the shape of inner vortex conical shell inner cavity is truncated cone-shaped, therefore is pushed in cone-type spiral axis
During glass reinforced plastic raw material, glass reinforced plastic raw material can generate compression under the thrust of cone-type spiral axis；Due also to inside spin
Line conical shell inner surface is equipped with the second helix of several protrusions；There are gap between second helix and the first helix,
Therefore glass reinforced plastic raw material generates rubbing, shearing with contacting at inner vortex conical shell inner wall while being marched forward by compression
With the working condition of separation effect, while by axial compression power, synchronous generate with axial force direction is glass reinforced plastic raw material
The normal direction shearing force of axis, the collective effect of the two power tear glass reinforced plastic raw material and realize dissociation, obtain reinforced plastic glass fibre
It is coated with the polymer composite fibrous of at least one layer of resin, is utilized between the end and inswinger face pressure lid of cone-type spiral axis
Second boss can be ground with third boss to polymer composite fibrous, make polymer composite fibrous to reach default fineness；
The polymer composite fibrous discharge port covered from inswinger face pressure of obtained default fineness is extruded.The present invention passes through in interior spiral shell
Cooling device is equipped with outside spin line conical shell, due to the polymer composite fibrous high temperature generated when processing that can be prevented
In secondary generation reunion balling-up.Glass reinforced plastic separation device for dissociation structure of the present invention is simple, good separating effect, with traditional milling machinery
Device by the random stress colliding or separate make matrix and two kinds of materials of fiber in proportion, same latitude, be crushed with partial size
Mechanism is completely different.In conclusion glass reinforced plastic separation device for dissociation of the invention is able to solve glass reinforced plastic recycling product and glass
Steel produces matrix and fiber dissociation problem in the process of corner, and realizing the recycling from glass reinforced plastic has having for certain length
The purpose of fibre structure, process it is polymer composite fibrous can be used as additive, to improve the usability of matrix
Can, therefore the present invention realizes the high-valued recycling of glass reinforced plastic recycling product and glass reinforced plastic produce leftover pieces and utilizes.
First helix of the cone-type spiral axis close to inswinger face pressure lid one end gradually transits to the axis with cone-type spiral axis
Line is parallel, and extends to the end of cone-type spiral axis, which can make cone-type spiral axis and inner vortex conical shell to glass
Glass steel raw material is ground, and is conducive to obtain default fineness powder.Since the first helix gradually transits to and cone-type spiral axis
Axis parallel section for its spiral part spacing become larger, be unfavorable for being uniformly distributed for glass reinforced plastic raw material, and then make
The powder fineness that must be finally obtained not can guarantee, therefore first boss is arranged, by first boss to cone-type spiral axis and interior spiral shell
Material in spin line conical shell cavity is shunted, so that glass reinforced plastic feed distribution evenly distributes, guarantees grinding effect.First is convex
The transition part of one section of smooth arcuation is set on platform, transition part in one section of spiral distribution on cone-type spiral axis, the rotation of transition part
To identical as the rotation direction of the first helix；The transition part of the structure can further such that glass reinforced plastic feed distribution evenly distributes,
Guarantee grinding effect.Along the axis direction of cone-type spiral axis, in several the first helixes, adjacent two the first helixes are risen
Initial point differs pre-determined distance；Due to glass reinforced plastic raw material squeezed, rub and shear history in, fineness gradually becomes smaller, therefore
Overall volume is gradually reduced, and differing pre-determined distance by the starting point of adjacent two the first helixes can make up for it due to being processed
The volume-diminished of raw material causes the cavity filling between cone-type spiral axis and inner vortex conical shell insufficient, cause squeeze,
The bad defect of rubbing, shear effect；When also avoiding just starting processing simultaneously, since the spire of the first helix is closeer,
The biggish glass reinforced plastic raw material of fineness is more, the accumulation of Yi Fasheng raw material, and then is difficult to carry out effective feeding, and part is caused to lack
Material, influences processing effect.Second boss is set on cone-type spiral axis, and third boss is arranged in inswinger face pressure lid, and all second is convex
The top of platform is located on same spherical surface, and the top of all third boss is located on same spherical surface, spherical surface where at the top of second boss
Radius at the top of third boss where the radius of spherical surface it is identical；The structure had both realized end and the inswinger of cone-type spiral axis
Matching between face pressure lid in structure also can be realized the grinding to processed material by second boss and third boss, guarantee
Grinding effect.Second boss and third boss are in the distribution of oblique cone dentation, which can make to be processed material in portion progress
When grinding, abrasion path is lengthened, and further ensures grinding effect.It is set between inswinger face pressure lid and inner vortex conical shell
There is gasket, which is used to adjust the gap between taper upset end portion and inswinger face pressure lid；By adjusting the gap, energy
Enough so that the polymer composite fibrous length processed is adjustable.
The process of Inventive polymers composite fibre includes:
Driving device drives cone-type spiral axis 10 to rotate, and the resin base that fibre reinforcement is added into feed feeding warehouse 9 is multiple
The polymer matrix composites of fibre reinforcement are conveyed into interior spiral shell from feed feeding warehouse 9 by the cone-type spiral axis 10 of condensation material, rotation
In spin line conical shell 11, in inner vortex conical shell 11, between cone-type spiral axis 10 and inner vortex conical shell 11
Extruding is repeated to the polymer matrix composites of fibre reinforcement using the first helix 10-3 and the second helix 11-1, is rubbed
It rubs with the hands, shear and separates, so that the polymer matrix composites of fibre reinforcement dissociate, obtain polymer composite fibrous；Taper
It is compound to polymer using second boss 10-2 and third boss 12-1 between the end and inswinger face pressure lid 12 of helical axis 10
Fiber is ground, and makes polymer composite fibrous to reach default fineness；What is obtained is polymer composite fibrous from inswinger face pressure lid
Discharge port on 12 is extruded.
By the present invention it can be seen from the above results process it is polymer composite fibrous in, fiber reinforcement surface can wrap
It is wrapped at least one layer of resin.
The preparation method of antimitotic agent of the present invention is preferred are as follows: first uses the leftover pieces of the polymer matrix composites of fibre reinforcement
The progress such as jaw crusher are just handled, so that the volume of material becomes smaller, then carry out fine powder with separation device for dissociation again, fiber increases
The polymer matrix composites leftover pieces of strong body can be any glass fiber reinforced plastics product leftover pieces.
The antimitotic agent is added in anti-crack concrete of the invention.
It as preferred embodiment, is calculated in mass percent, in anti-crack concrete, the additive amount of antimitotic agent is gel material
Expect the 1%~10% of quality.
Following non-limiting embodiments can make those skilled in the art that the present invention be more completely understood, but not with
Any mode limits the present invention.
Embodiment 1
In the present embodiment, polymer composite fibrous preparation method includes the following steps:
The polymer matrix composites of fibre reinforcement use glass fiber reinforced plastics product leftover pieces.
The preparation of polymer composite fibrous just powder: the crushing of the polymer matrix composites leftover pieces of fibre reinforcement, it will
The polymer matrix composites of the fibre reinforcement of bulk are cut to fritter, place into crusher, and what is obtained is exactly preliminary broken
It is polymer composite fibrous；
The preparation of polymer composite fibrous fine powder material: polymer composite fibrous just powder is added to present invention separation dissociation
It is processed in device, fine powder material can be obtained, which can be used as the polymer that can be used in antimitotic agent of the present invention
The fine powder material of composite fibre.
Referring to Fig. 8, for processing Scrap-FRP in embodiment 1, it can be seen that by present invention separation dissociation dress
Set it is polymer composite fibrous in, be covered at least one layer of resin on the surface of fibre reinforcement (i.e. glass fibre).
Referring to Fig. 9, processing Scrap-FRP, which can be seen that, has one layer of fold in the upper left corner Fig. 9 fiberglass surfacing, this
Be fiberglass surfacing thermosetting resin do not completely disengage glass fibre formation.
Referring to Fig.1 0, the polymer composite fibrous heating that Scrap-FRP is obtained by present invention separation device for dissociation
To 200 DEG C, hollow will form in fiberglass surfacing, this is the ablated formation of the thermosetting resin of fiberglass surfacing.
The preparation of antimitotic agent in the present embodiment: by polymer composite fibrous fine powder material obtained above, flyash and gather
Carboxyl acid modified surfactant uniformly mixes in batch mixer, obtains the antimitotic agent of the present embodiment, is calculated in mass percent, cracking resistance
In agent containing 90% polymer composite fibrous fine powder material, 5% flyash and 5% poly carboxylic acid modified surfactant.
It is calculated in mass percent, the antimitotic agent that the present embodiment is obtained is according to 1%, the 5% of concrete gel rubber material quality
Be added in gel rubber material with 10%, be uniformly mixed obtain the anti-crack concrete of the present embodiment, to obtained anti-crack concrete into
Row test, test acquired results are as shown in table 1:
Table 1
As can be seen from Table 1, with the increase of antimitotic agent additive amount, the compression strength and cracking resistance of anti-crack concrete are equal
It is promoted.
Referring to Fig.1 1, it is polymer composite fibrous to be uniformly dispersed in embodiment 1 in anti-crack concrete of the invention, it can make
Hydrolysis product of cement crystal form is more complete, and structure is even closer, and mechanical property is improved.
Embodiment 2
In the present embodiment, polymer composite fibrous preparation method includes the following steps:
The polymer matrix composites of fibre reinforcement use glass fiber reinforced plastics product leftover pieces.
The preparation of polymer composite fibrous just powder: the crushing of the polymer matrix composites leftover pieces of fibre reinforcement, it will
The polymer matrix composites of the fibre reinforcement of bulk are cut to fritter, place into crusher, and what is obtained is exactly preliminary broken
It is polymer composite fibrous；
The preparation of polymer composite fibrous fine powder material: polymer composite fibrous just powder is added to present invention separation dissociation
It is processed in device, fine powder material can be obtained, which can be used as can be used in cracking resistance antimitotic agent of the present invention poly-
Close the fine powder material of object composite fibre.
The preparation of antimitotic agent in the present embodiment:
The preparation of antimitotic agent in the present embodiment: by polymer composite fibrous fine powder material obtained above, miberal powder and poly- carboxylic
Sour modified surface active's agent uniformly mixes in batch mixer, obtains the antimitotic agent of the present embodiment, is calculated in mass percent, antimitotic agent
In containing 60% polymer composite fibrous fine powder material, 32% miberal powder and 8% poly carboxylic acid modified surfactant.
It is calculated in mass percent, the antimitotic agent that the present embodiment is obtained is according to 1%, 5% and the 10% of gel rubber material quality
It is added in gel rubber material, is uniformly mixed and obtains the anti-crack concrete of the present embodiment, obtained anti-crack concrete is tested,
It is as shown in table 2 to test acquired results:
Table 2
As can be seen from Table 2, with the increase of antimitotic agent additive amount, the compression strength and cracking resistance of anti-crack concrete are equal
It is promoted.
Embodiment 3
In the present embodiment, polymer composite fibrous preparation method includes the following steps:
The polymer matrix composites of fibre reinforcement are using production GRP pipe leftover pieces.
The preparation of polymer composite fibrous just powder: the crushing of the polymer matrix composites leftover pieces of fibre reinforcement, it will
The polymer matrix composites of the fibre reinforcement of bulk are cut to fritter, place into crusher, and what is obtained is exactly preliminary broken
It is polymer composite fibrous；
The preparation of polymer composite fibrous fine powder material: polymer composite fibrous just powder is added to present invention separation dissociation
It is processed in device, fine powder material can be obtained, which can be used as the polymer that can be used in antimitotic agent of the present invention
The fine powder material of composite fibre.
The preparation of antimitotic agent in the present embodiment: by polymer composite fibrous fine powder material obtained above, kaolin and close
Polyimide resin modified surface active's agent uniformly mixes in batch mixer, obtains the antimitotic agent of the present embodiment, is calculated in mass percent, and resists
Split in agent containing 75% polymer composite fibrous fine powder material, 17% kaolin and 8% melamine resin modified surface it is living
Property agent.
It is calculated in mass percent, the antimitotic agent that the present embodiment is obtained is added according to the 1% of gel rubber material quality and 10%
It into gel rubber material, is uniformly mixed and obtains the anti-crack concrete of the present embodiment, obtained anti-crack concrete is tested, test
Acquired results are as shown in table 3:
Table 3
As can be seen from Table 3, with the increase of antimitotic agent additive amount, the compression strength and cracking resistance of anti-crack concrete are equal
It is promoted.
Embodiment 4
In the present embodiment, polymer composite fibrous preparation method includes the following steps:
The polymer matrix composites of fibre reinforcement are using production Scrap-FRP.
The preparation of polymer composite fibrous just powder: the crushing of the polymer matrix composites leftover pieces of fibre reinforcement, it will
The polymer matrix composites of the fibre reinforcement of bulk are cut to fritter, place into crusher, and what is obtained is exactly preliminary broken
It is polymer composite fibrous；
The preparation of polymer composite fibrous fine powder material: polymer composite fibrous just powder is added to present invention separation dissociation
It is processed in device, fine powder material can be obtained, which can be used as the polymer that can be used in antimitotic agent of the present invention
The fine powder material of composite fibre.
The preparation of antimitotic agent in the present embodiment: by polymer composite fibrous fine powder material obtained above, kaolin and close
Polyimide resin modified surface active's agent uniformly mixes in batch mixer, obtains the antimitotic agent of the present embodiment, is calculated in mass percent, and resists
Split in agent containing 80% polymer composite fibrous fine powder material, 12% kaolin and 8% surfactant.
It is calculated in mass percent, the antimitotic agent that the present embodiment is obtained is added according to the 1% of gel rubber material quality and 10%
It into gel rubber material, is uniformly mixed and obtains the anti-crack concrete of the present embodiment, obtained anti-crack concrete is tested, test
Acquired results are as shown in table 4:
Table 4
As can be seen from Table 4, with the increase of antimitotic agent additive amount, the compression strength and cracking resistance of anti-crack concrete are equal
It is promoted.
Embodiment 5
In the present embodiment, polymer composite fibrous preparation method includes the following steps:
The polymer matrix composites of fibre reinforcement are using production Scrap-FRP.
The preparation of polymer composite fibrous just powder: the crushing of the polymer matrix composites leftover pieces of fibre reinforcement, it will
The polymer matrix composites of the fibre reinforcement of bulk are cut to fritter, place into crusher, and what is obtained is exactly preliminary broken
It is polymer composite fibrous；
The preparation of polymer composite fibrous fine powder material: polymer composite fibrous just powder is added to present invention separation dissociation
It is processed in device, fine powder material can be obtained, which can be used as the polymer that can be used in antimitotic agent of the present invention
The fine powder material of composite fibre.
The preparation of antimitotic agent in the present embodiment: by polymer composite fibrous fine powder material obtained above, kaolin and close
Polyimide resin modified surface active's agent uniformly mixes in batch mixer, obtains the antimitotic agent of the present embodiment, is calculated in mass percent, and resists
Split in agent containing 85% polymer composite fibrous fine powder material, 10% kaolin and 5% surfactant.
It is calculated in mass percent, the antimitotic agent that the present embodiment is obtained is added according to the 1% of gel rubber material quality and 10%
It into gel rubber material, is uniformly mixed and obtains the anti-crack concrete of the present embodiment, obtained anti-crack concrete is tested, test
Acquired results are as shown in table 5:
Table 5
As can be seen from Table 5, with the increase of antimitotic agent additive amount, the compression strength and cracking resistance of anti-crack concrete are equal
It is promoted.
In conclusion the invention has the benefit that
1) present invention can be former with the leftover pieces waste product generated in discarded polymer composite fibrous article manufacturing process
Material, realizes waste and utilizes again, while alleviating pollution of the solid waste to environment.
2) the polymer composite fibrous surface that the present invention obtains is wrapped at least one layer of resin, makes for the later period of fibre reinforcement
It is protected with providing.
3) filler that uses of the present invention is can be flyash, miberal powder, calcium carbonate, kaolin, 4A zeolite etc..Raw material sources
Extensively, it is suitble to each place production, reduces cost.
4) present invention prepared by polymer composite fibrous fine powder material can substitute polypropylene fibre, lignin fibre with
And application of the rock wool in antimitotic agent.
5) antimitotic agent prepared by the present invention can effectively improve the intensity and viscosity of concrete, reduce cement concrete
Dosage, reduce the cost of unit in charge of construction.
6) specific heat capacity and cement polymer composite fibrous used in the present invention are close, almost synchronous progress of expanding with heat and contract with cold, after
Phase is not easily to fall off.
Concrete antimitotic agent proposed by the present invention, bonding force is strong, heat-resisting, cracking resistance is excellent.It is added in concrete
Polymer composite fibrous higher than organic fiber heatproof, non-ignitable, anti-corruption is heat-insulated, sound-proofing is good, and tensile strength is high, reduces creep.In
Fiber reinforcement surface is enclosed at least one layer of resin, thus can prevent in glass fibre special component under certain condition with
Alkaloid substance further occurrence chemical reaction in cement, additive, admixture in concrete etc., so that cracking resistance will not be caused mixed
The phenomenon that Xtah Crude Clay structure generates expansion, cracking even destroys.Addition surfactant can make polymer compound inside antimitotic agent
Fiber is evenly dispersed in anti-crack concrete, to make polymer composite fibrous to play good support in anti-crack concrete and make
With, and will not influence the mobility and workability of anti-crack concrete.
Claims (8)
1. a kind of anti-crack concrete, which is characterized in that its component includes antimitotic agent and gel rubber material, is calculated in mass percent:
The quality of antimitotic agent is the 1%~10% of gel rubber material quality；
It include: polymer composite fibrous 60%~90% in antimitotic agent, surfactant 3%-8%, remaining is filler；
It is described it is polymer composite fibrous be process by the polymer matrix composites of fibre reinforcement, the compound fibre of polymer
Dimension is the composite fibre that fiber reinforcement surface is enclosed at least one layer of resin.
2. a kind of anti-crack concrete according to claim 1, which is characterized in that the surfactant is anionic surface
Activating agent.
3. a kind of anti-crack concrete according to claim 1 or 2, which is characterized in that the surfactant is polycarboxylic acids
Modified surface active's agent or melamine resin modified surface active's agent.
4. a kind of anti-crack concrete according to claim 1, which is characterized in that the filler uses flyash, miberal powder, carbon
The mixture of one or more of sour calcium, kaolin and 4A zeolite.
5. a kind of anti-crack concrete according to claim 1, which is characterized in that the resin base of the fibre reinforcement is compound
Material includes glass fiber reinforced plastics product, scraps fan blade, production glass fiber reinforced plastics product leftover pieces, one in glass felt and glass grid cloth
Kind or several mixtures.
6. a kind of anti-crack concrete according to claim 1, which is characterized in that the polymer composite fibrous length is
3mm~10mm.
7. a kind of anti-crack concrete according to claim 1, which is characterized in that the pressure resistance of the anti-crack concrete 28d
Degree is 43.5~46.5Mpa, and pressure-resisting ratio is 103%~109%；The pressure-resisting ratio of the anti-crack concrete 7d is 97%~106%.
8. a kind of method for preparing anti-crack concrete described in claim 1-7 any one, which is characterized in that including following mistake
Journey:
Polymer composite fibrous, filler and surfactant are uniformly mixed, the antimitotic agent is obtained；
The antimitotic agent is added in the gel rubber material of concrete, uniform mixing obtains the anti-crack concrete.
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| CN115028412A (en) * | 2022-06-22 | 2022-09-09 | 西安科技大学 | Capillary guide in-situ plugging cement-based composite material and application method thereof |
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| EP1236699A1 (en) * | 2001-03-01 | 2002-09-04 | Sika AG, vorm. Kaspar Winkler & Co. | Composite material and shaped article with thermal conductivity and specific gravity on demand |
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