CN106478009A - A kind of microcapsule concrete based on microwave and freeze thawing maintenance and preparation method thereof - Google Patents
A kind of microcapsule concrete based on microwave and freeze thawing maintenance and preparation method thereof Download PDFInfo
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- CN106478009A CN106478009A CN201610838694.5A CN201610838694A CN106478009A CN 106478009 A CN106478009 A CN 106478009A CN 201610838694 A CN201610838694 A CN 201610838694A CN 106478009 A CN106478009 A CN 106478009A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- 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
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1022—Non-macromolecular compounds
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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
- 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
- C04B40/0075—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of a decrease in temperature
- C04B40/0078—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of a decrease in temperature by freezing
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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
- 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
- C04B40/02—Selection of the hardening environment
- C04B40/0204—Selection of the hardening environment making use of electric or wave energy or particle radiation
- C04B40/0213—Electromagnetic waves
- C04B40/0218—Microwaves
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Epoxy Resins (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of preparation method of the microcapsule concrete based on microwave and freeze thawing maintenance, comprises the following steps：The epoxy resin micro-capsule being respectively coated by Bacillus pasteurii, calcium lactate and carbamide is added to the water, stirring, to the formation microcapsule solution that is uniformly dispersed；Ferroso-ferric oxide and ferrum oxide are dispersed through, suppress, calcining, pulverizes formation iron content auxiliary agent, cement being added to the water, stirring, add silicon dioxide, natural river sand, chopped fiber, iron content auxiliary agent and water reducer, stirring, add microcapsule solution, it is slowly stirred, cured formation concrete；By concrete through showering curing, first heated by microwave, more chilled process, repeatedly process, obtain the microcapsule concrete based on microwave and freeze thawing maintenance.It is good that the method prepares concrete anti-seepage aqueouss, crushing resistance, and can spontaneous recovery reparation.
Description
Technical field
The invention belongs to Expressway Pavement Material field is and in particular to a kind of microcapsule coagulation based on microwave and freeze thawing maintenance
Soil and preparation method thereof.
Background technology
Concrete is the important composition of cement material, and it has strong adaptability, simple to operate, and intensity is good, and good stability is resistance to
Long property is excellent, the advantages of low cost, has a wide range of applications in fields such as building, bridge, roads.But, concrete is long-time
During use, the long duration of action through external environment and pressure occurs crackle unavoidably, in addition fracture etc. phenomenon, concrete one
Through damaging, the lives and properties of people can be caused with great potential safety hazard, therefore improve the durability of the resistance to compression resistance of concrete
Problem seems particularly significant.
At present, for the research that the durable spontaneous recovery sex chromosome mosaicism of concrete is more.Chinese patent CN 101289300B is public
The self-repair concrete of a kind of use polyurethane high molecule microcapsule opened and its manufacture method, this polyurethane high molecule microcapsule
In containing firming agent, adhesive and hydrophilic surfactant, so that polyurethane high molecule microcapsule and concrete is bondd well,
Form good interface, the mixing of concrete and maintenance processes will not one's water breaks occur, when crackle in concrete, release
Go out adhesive, concrete is repaired.One kind disclosed in Chinese patent CN 105036614A can quickly certainly under microwave action
The bituminous concrete of healing, preparation method and its restorative procedure, thickness are gathered materials, breeze, Colophonium, soft magnetic ferrite powder and fibre
Dimension, as raw material, through mix, soft magnetic ferrite powder is evenly dispersed in asphalt mastic, reduces the damage to concrete for the microwave
Consumption.A kind of existing glued slab flooring of microorganism winnofil blocking concrete disclosed in Chinese patent CN 104196131B or base plate
The method in crack, calcium source solution, nutrient salt solution and microbial inoculum are injected separately in crackle, form carbonic acid in crackle
Calcium, identical with concrete composition, repairing performance is good.
From above-mentioned prior art, can be by concrete be carried out with interpolation, the Final finishing of functional mass, or crack
The maneuvers such as reparation improve the endurance quality of concrete, but the combination property of the concrete after repairing is difficult to ensure that, mixed after reparation
The performance of solidifying soil is difficult to compare with initial performance, and endurance quality improves less.
Content of the invention
The technical problem to be solved in the present invention be provide a kind of microcapsule concrete based on microwave and freeze thawing maintenance and its
Preparation method, microcapsule, iron content auxiliary agent, cement, filler, water reducer and water are solidify to form shape as raw material, then support through water drenching
Shield, microwave heating, freezing processing obtain the microcapsule concrete based on microwave and freeze thawing maintenance.The method preparation based on microwave
With the microcapsule concrete anti-seepage water excellent performance of freeze thawing maintenance, comprcssive strength is high, and has spontaneous recovery repair function.
For solving above-mentioned technical problem, the technical scheme is that：
A kind of microcapsule concrete based on microwave and freeze thawing maintenance, the described microcapsule based on microwave and freeze thawing maintenance mixes
Solidifying soil includes microcapsule, iron content auxiliary agent, cement, filler, water reducer and water, and described microcapsule is epoxy resin micro-capsule, described
Be respectively coated by Bacillus pasteurii, calcium lactate and carbamide in epoxy resin micro-capsule, described iron content auxiliary agent be ferroso-ferric oxide and
Ferrum oxide, described filler is silicon dioxide, natural river sand and chopped fiber, and described cement is portland cement, and described water reducer is
NF water reducer, the described microcapsule concrete heated by microwave based on microwave and freeze thawing maintenance and freeze thawing treatment.
Preferred as technique scheme, the component of the microcapsule concrete based on microwave and freeze thawing maintenance, by weight
Part meter, including：100 parts of water, cement 150-400 part, filler 700-900 part, water reducer 0.5-2 part, iron content auxiliary agent 20-40 part,
Microcapsule 50-80 part.
The present invention also provides a kind of preparation method of the microcapsule concrete based on microwave and freeze thawing maintenance, walks including following
Suddenly：
(1) by the micro- glue of epoxy resin of the epoxy resin micro-capsule of cladding Bacillus pasteurii and cladding calcium lactate and carbamide
Capsule is 3-4 in mass ratio:1 is added to the water, and stirring, to the formation microcapsule solution that is uniformly dispersed；
(2) ferroso-ferric oxide and ferrum oxide are dispersed through, suppress, calcining, pulverizing formation iron content auxiliary agent, by portland cement
It is added to the water, is sufficiently stirred for, add silicon dioxide, natural river sand, chopped fiber, iron content auxiliary agent and NF water reducer, be sufficiently stirred for,
Add microcapsule solution prepared by step (1), be slowly stirred, cured formation concrete；
(3) concrete preparing step (2) is after showering curing 7-15 days, first heated by microwave, more chilled process,
Repeatedly process 10-20 time, obtain the microcapsule concrete based on microwave and freeze thawing maintenance.
Preferred as technique scheme, in described step (1), coat the ring of Bacillus pasteurii in microcapsule solution
Oxygen tree grease microcapsule is 5-15% with the total mass fraction of cladding calcium lactate and the epoxy resin micro-capsule of carbamide.
Preferred as technique scheme, in described step (2), the mass ratio of ferroso-ferric oxide and ferrum oxide is 2:1-
1.5, the particle diameter of iron content auxiliary agent is 150-200 mesh.
Preferred as technique scheme, in described step (2), the particle diameter of described silicon dioxide is 50-100 micron,
Described chopped fiber is polypropene staple, and the particle diameter of described natural river sand is 0.25-0.35mm.
Preferred as technique scheme, in described step (2), described silicon dioxide, natural river sand, the weight of chopped fiber
Amount ratio is 1:0.8-1.2:0.5-0.7.
Preferred as technique scheme, in described step (3), the temperature of described showering curing is 20-25 DEG C, relatively
Humidity is 85-90%.
Preferred as technique scheme, in described step (3), the power of microwave heating is 200-600W, and frequency is
3-5KHz, the time is 30-60min.
Preferred as technique scheme, in described step (3), the temperature of freezing processing is -20 DEG C, and the time is 1-
2h.
Compared with prior art, the invention has the advantages that：
(1) contain microcapsule, in microcapsule in the microcapsule concrete based on microwave and freeze thawing maintenance of present invention preparation
Bacillus pasteurii, calcium lactate and carbamide have been respectively coated by it, when concrete is subject to severe impact or the environment of extraneous pressure
The acute variation of factor, the outer wall rupture of microcapsule, bus bacillus cereuss are mixed with calcium lactate and carbamide, generate Calcium Carbonate, fill
Fill out the internal interstices of concrete, prevent concrete from gap occurring, improve resistance to compression and the resistance ability of concrete.
(2) silicon dioxide, natural river are contained in the microcapsule concrete based on microwave and freeze thawing maintenance of present invention preparation
Sand and chopped fiber, as filler, can reduce the use ratio of cement, increase the weight of concrete, and silica dioxide granule contains
There is hole, can be very good to adsorb the raw materials such as microcapsule, natural river sand granule is fine and smooth, makes the good fluidity of system, prevents coagulation
In soil, larger hole occurs, chopped fiber can increase the binding strength of concrete, and therefore filler can comprehensively improve strong concrete
The uniformity of power, improves resistance to compression and the resistance ability of concrete.
(3) ferroso-ferric oxide and oxidation are contained in the microcapsule concrete based on microwave and freeze thawing maintenance of present invention preparation
Ferrum, ferroso-ferric oxide and ferrum oxide are soft magnetic bodies, can absorb microwave, promote the solidification between concrete material, increase raw material
Between intensity, improve the resistance to compression of concrete and resistance ability.
(4) present invention preparation the microcapsule concrete based on microwave and freeze thawing maintenance through showering curing, microwave heating and
Freezing processing, makes to produce crystallization in concrete, is mingled with the precipitation blocking at some positions for the broken granule in water, and microwave freezing processes and makes
The blocking that comes off of granule, and make hydras become loose, plug fracture void to a certain extent, make the water repellency of concrete
Can improve, indirectly improve resistance to compression and the resistance ability of concrete.
Specific embodiment
To describe the present invention, the illustrative examples of the here present invention and explanation below in conjunction with specific embodiment in detail
It is used for explaining the present invention, but not as a limitation of the invention.
Embodiment 1：
(1) by the micro- glue of epoxy resin of the epoxy resin micro-capsule of cladding Bacillus pasteurii and cladding calcium lactate and carbamide
Capsule is 3 in mass ratio:1 is added to the water, stirring, to the formation microcapsule solution that is uniformly dispersed, coats bar wherein in microcapsule solution
The epoxy resin micro-capsule of family name's bacillus cereuss with the total mass fraction of epoxy resin micro-capsule of cladding calcium lactate and carbamide is
5%.
(2) by mass ratio be 2:1 ferroso-ferric oxide and ferrum oxide are dispersed through, suppress, calcining, pulverizing formation particle diameter
The iron content auxiliary agent of 150 mesh, by particle diameter be 50 μm silicon dioxide, 0.25mm natural river sand and polypropene staple to measure than for 1:
0.8:0.5 is mixed to form filler, and portland cement is added to the water, and is sufficiently stirred for, and adds filler, iron content auxiliary agent and NF diminishing
Agent, is sufficiently stirred for, and adds microcapsule solution prepared by step (1), is slowly stirred, cured formation concrete, wherein, coagulation
Component in soil, by weight, including 100 parts of water, 150 parts of cement, 700 parts of filler, 0.5 part of water reducer, 50 parts of microcapsule.
(3) concrete preparing step (2) showering curing after 7 days at 20 DEG C of temperature and 85% humidity, first through 200W
Microwave heating 30min under power and 3KHz frequency, then through -20 DEG C of freezing processing 1h, repeatedly process 10 times, obtain based on microwave and
The microcapsule concrete of freeze thawing maintenance.
Embodiment 2：
(1) by the micro- glue of epoxy resin of the epoxy resin micro-capsule of cladding Bacillus pasteurii and cladding calcium lactate and carbamide
Capsule is 4 in mass ratio:1 is added to the water, stirring, to the formation microcapsule solution that is uniformly dispersed, coats bar wherein in microcapsule solution
The epoxy resin micro-capsule of family name's bacillus cereuss with the total mass fraction of epoxy resin micro-capsule of cladding calcium lactate and carbamide is
15%.
(2) by mass ratio be 2:1.5 ferroso-ferric oxide and ferrum oxide are dispersed through, suppress, calcining, pulverizing formation particle diameter
The iron content auxiliary agent of 200 mesh, by particle diameter be 100 μm silicon dioxide, 0.35mm natural river sand and polypropene staple with measure than for
1:1.2:0.7 is mixed to form filler, and portland cement is added to the water, and is sufficiently stirred for, and adds filler, iron content auxiliary agent and NF and subtracts
Water preparation, is sufficiently stirred for, and adds microcapsule solution prepared by step (1), is slowly stirred, cured formation concrete, wherein, mixes
Component in solidifying soil, by weight, including 100 parts of water, 400 parts of cement, 900 parts of filler, 2 parts of water reducer, 80 parts of microcapsule.
(3) concrete preparing step (2) showering curing after 15 days at 25 DEG C of temperature and 90% humidity, first through 600W
Microwave heating 60min under power and 5KHz frequency, then through -20 DEG C of freezing processing 2h, repeatedly process 20 times, obtain based on microwave and
The microcapsule concrete of freeze thawing maintenance.
Embodiment 3：
(1) by the micro- glue of epoxy resin of the epoxy resin micro-capsule of cladding Bacillus pasteurii and cladding calcium lactate and carbamide
Capsule is 3.5 in mass ratio:1 is added to the water, stirring, to the formation microcapsule solution that is uniformly dispersed, coats wherein in microcapsule solution
The epoxy resin micro-capsule of Bacillus pasteurii with the total mass fraction of epoxy resin micro-capsule of cladding calcium lactate and carbamide is
10%.
(2) by mass ratio be 2:1.2 ferroso-ferric oxide and ferrum oxide are dispersed through, suppress, calcining, pulverizing formation particle diameter
The iron content auxiliary agent of 180 mesh, by particle diameter be 80 μm silicon dioxide, 0.30mm natural river sand and polypropene staple to measure than for 1:
1:0.6 is mixed to form filler, and portland cement is added to the water, and is sufficiently stirred for, and adds filler, iron content auxiliary agent and NF diminishing
Agent, is sufficiently stirred for, and adds microcapsule solution prepared by step (1), is slowly stirred, cured formation concrete, wherein, coagulation
Component in soil, by weight, including 100 parts of water, 200 parts of cement, 800 parts of filler, 1 part of water reducer, 60 parts of microcapsule.
(3) concrete preparing step (2) showering curing after 10 days at 23 DEG C of temperature and 88% humidity, first through 400W
Microwave heating 40min under power and 4KHz frequency, then through -20 DEG C of freezing processing 1.5h, repeatedly process 15 times, obtain based on microwave
Microcapsule concrete with freeze thawing maintenance.
Embodiment 4：
(1) by the micro- glue of epoxy resin of the epoxy resin micro-capsule of cladding Bacillus pasteurii and cladding calcium lactate and carbamide
Capsule is 3 in mass ratio:1 is added to the water, stirring, to the formation microcapsule solution that is uniformly dispersed, coats bar wherein in microcapsule solution
The epoxy resin micro-capsule of family name's bacillus cereuss with the total mass fraction of epoxy resin micro-capsule of cladding calcium lactate and carbamide is
12%.
(2) by mass ratio be 2:1.2 ferroso-ferric oxide and ferrum oxide are dispersed through, suppress, calcining, pulverizing formation particle diameter
The iron content auxiliary agent of 150 mesh, by particle diameter be 100 μm silicon dioxide, 0.25mm natural river sand and polypropene staple with measure than for
1:0.9:0.5 is mixed to form filler, and portland cement is added to the water, and is sufficiently stirred for, and adds filler, iron content auxiliary agent and NF and subtracts
Water preparation, is sufficiently stirred for, and adds microcapsule solution prepared by step (1), is slowly stirred, cured formation concrete, wherein, mixes
Component in solidifying soil, by weight, including 100 parts of water, 200 parts of cement, 800 parts of filler, 1.5 parts of water reducer, microcapsule 60
Part.
(3) concrete preparing step (2) showering curing after 15 days at 25 DEG C of temperature and 85% humidity, first through 600W
Microwave heating 45min under power and 3KHz frequency, then through -20 DEG C of freezing processing 2h, repeatedly process 20 times, obtain based on microwave and
The microcapsule concrete of freeze thawing maintenance.
Embodiment 5：
(1) by the micro- glue of epoxy resin of the epoxy resin micro-capsule of cladding Bacillus pasteurii and cladding calcium lactate and carbamide
Capsule is 4 in mass ratio:1 is added to the water, stirring, to the formation microcapsule solution that is uniformly dispersed, coats bar wherein in microcapsule solution
The epoxy resin micro-capsule of family name's bacillus cereuss with the total mass fraction of epoxy resin micro-capsule of cladding calcium lactate and carbamide is
12%.
(2) by mass ratio be 2:1.3 ferroso-ferric oxide and ferrum oxide are dispersed through, suppress, calcining, pulverizing formation particle diameter
The iron content auxiliary agent of 200 mesh, by particle diameter be 100 μm silicon dioxide, 0.25mm natural river sand and polypropene staple with measure than for
1:1:0.5 is mixed to form filler, and portland cement is added to the water, and is sufficiently stirred for, and adds filler, iron content auxiliary agent and NF diminishing
Agent, is sufficiently stirred for, and adds microcapsule solution prepared by step (1), is slowly stirred, cured formation concrete, wherein, coagulation
Component in soil, by weight, including 100 parts of water, 300 parts of cement, 750 parts of filler, 1 part of water reducer, 55 parts of microcapsule.
(3) concrete preparing step (2) showering curing after 12 days at 25 DEG C of temperature and 85% humidity, first through 300W
Microwave heating 30min under power and 3KHz frequency, then through -20 DEG C of freezing processing 1h, repeatedly process 10 times, obtain based on microwave and
The microcapsule concrete of freeze thawing maintenance.
Embodiment 6：
(1) by the micro- glue of epoxy resin of the epoxy resin micro-capsule of cladding Bacillus pasteurii and cladding calcium lactate and carbamide
Capsule is 3 in mass ratio:1 is added to the water, stirring, to the formation microcapsule solution that is uniformly dispersed, coats bar wherein in microcapsule solution
The epoxy resin micro-capsule of family name's bacillus cereuss with the total mass fraction of epoxy resin micro-capsule of cladding calcium lactate and carbamide is
15%.
(2) by mass ratio be 2:1.5 ferroso-ferric oxide and ferrum oxide are dispersed through, suppress, calcining, pulverizing formation particle diameter
The iron content auxiliary agent of 150 mesh, by particle diameter be 100 μm silicon dioxide, 0.25mm natural river sand and polypropene staple with measure than for
1:0.8:0.7 is mixed to form filler, and portland cement is added to the water, and is sufficiently stirred for, and adds filler, iron content auxiliary agent and NF and subtracts
Water preparation, is sufficiently stirred for, and adds microcapsule solution prepared by step (1), is slowly stirred, cured formation concrete, wherein, mixes
Component in solidifying soil, by weight, including 100 parts of water, 250 parts of cement, 700 parts of filler, 1 part of water reducer, 50 parts of microcapsule.
(3) concrete preparing step (2) showering curing after 12 days at 25 DEG C of temperature and 85% humidity, first through 300W
Microwave heating 50min under power and 5KHz frequency, then through -20 DEG C of freezing processing 2h, repeatedly process 20 times, obtain based on microwave and
The microcapsule concrete of freeze thawing maintenance.
After testing, the microcapsule concrete based on microwave and freeze thawing maintenance of embodiment 1-6 preparation and prior art
The pore volume of concrete, comprcssive strength, durable test result as follows：
As seen from the above table, the porosity of the microcapsule concrete based on microwave and freeze thawing maintenance of present invention preparation is good, resists
Compressive Strength is good, and ruggedness is good.
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any ripe
The personage knowing this technology all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
All equivalent modifications becoming or change, must be covered by the claim of the present invention.
Claims (10)
1. a kind of microcapsule concrete based on microwave and freeze thawing maintenance it is characterised in that described based on microwave with freeze thawing maintenance
Microcapsule concrete include microcapsule, iron content auxiliary agent, cement, filler, water reducer and water, described microcapsule be epoxy resin micro-
Capsule, is respectively coated by Bacillus pasteurii, calcium lactate and carbamide in described epoxy resin micro-capsule, described iron content auxiliary agent is four oxygen
Change three-iron and ferrum oxide, described filler is silicon dioxide, natural river sand and chopped fiber, described cement is portland cement, described
Water reducer is NF water reducer, the described microcapsule concrete heated by microwave based on microwave and freeze thawing maintenance and freeze thawing treatment.
2. a kind of microcapsule concrete based on microwave and freeze thawing maintenance according to claim 1 is it is characterised in that be based on
The component of the microcapsule concrete of microwave and freeze thawing maintenance, by weight, including：100 parts of water, cement 150-400 part, filler
700-900 part, water reducer 0.5-2 part, chalybeate 20-40 part, microcapsule 50-80 part.
3. a kind of preparation method of the microcapsule concrete based on microwave and freeze thawing maintenance it is characterised in that：Comprise the following steps：
(1) epoxy resin micro-capsule of the epoxy resin micro-capsule of cladding Bacillus pasteurii and cladding calcium lactate and carbamide is pressed
Mass ratio is 3-4:1 is added to the water, and stirring, to the formation microcapsule solution that is uniformly dispersed；
(2) ferroso-ferric oxide and ferrum oxide be dispersed through, suppress, calcining, pulverizing formation iron content auxiliary agent, portland cement is added
In water, it is sufficiently stirred for, add silicon dioxide, natural river sand, chopped fiber, iron content auxiliary agent and NF water reducer, be sufficiently stirred for, then plus
Enter microcapsule solution prepared by step (1), be slowly stirred, cured formation concrete；
(3) concrete preparing step (2) is after showering curing 7-15 days, first heated by microwave, more chilled process, repeatedly
Process 10-20 time, obtain the microcapsule concrete based on microwave and freeze thawing maintenance.
4. the preparation method of a kind of microcapsule concrete based on microwave and freeze thawing maintenance according to claim 3, it is special
Levy and be：In described step (1), coat epoxy resin micro-capsule and the cladding calcium lactate of Bacillus pasteurii in microcapsule solution
Total mass fraction with the epoxy resin micro-capsule of carbamide is 5-15%.
5. the preparation method of a kind of microcapsule concrete based on microwave and freeze thawing maintenance according to claim 3, it is special
Levy and be：In described step (2), the mass ratio of ferroso-ferric oxide and ferrum oxide is 2:1-1.5, the particle diameter of iron content auxiliary agent is 150-
200 mesh.
6. the preparation method of a kind of microcapsule concrete based on microwave and freeze thawing maintenance according to claim 3, it is special
Levy and be：In described step (2), the particle diameter of described silicon dioxide is 50-100 micron, and described chopped fiber is polypropene staple,
The particle diameter of described natural river sand is 0.25-0.35mm.
7. the preparation method of a kind of microcapsule concrete based on microwave and freeze thawing maintenance according to claim 3, it is special
Levy and be：In described step (2), described silicon dioxide, natural river sand, the weight of chopped fiber are than for 1:0.8-1.2:0.5-0.7.
8. the preparation method of a kind of microcapsule concrete based on microwave and freeze thawing maintenance according to claim 3, it is special
Levy and be：In described step (3), the temperature of described showering curing is 20-25 DEG C, and relative humidity is 85-90%.
9. the preparation method of a kind of microcapsule concrete based on microwave and freeze thawing maintenance according to claim 3, it is special
Levy and be：In described step (3), the power of microwave heating is 200-600W, and frequency is 3-5KHz, and the time is 30-60min.
10. the preparation method of a kind of microcapsule concrete based on microwave and freeze thawing maintenance according to claim 3, it is special
Levy and be：In described step (3), the temperature of freezing processing is -20 DEG C, and the time is 1-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838694.5A CN106478009A (en) | 2016-09-21 | 2016-09-21 | A kind of microcapsule concrete based on microwave and freeze thawing maintenance and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838694.5A CN106478009A (en) | 2016-09-21 | 2016-09-21 | A kind of microcapsule concrete based on microwave and freeze thawing maintenance and preparation method thereof |
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| CN107675648A (en) * | 2017-08-11 | 2018-02-09 | 汤始建华建材（苏州）有限公司 | One kind protection elastic pile |
| CN108046650A (en) * | 2017-12-29 | 2018-05-18 | 赵建平 | A kind of cement synergist |
| CN108164287A (en) * | 2017-12-29 | 2018-06-15 | 常州达奥新材料科技有限公司 | A kind of permanent seal cooling curing compound |
| CN108178573A (en) * | 2017-12-19 | 2018-06-19 | 常州思宇环保材料科技有限公司 | A kind of post-tensioned prestressing pipeline Special grouting material |
| CN108992703A (en) * | 2018-08-17 | 2018-12-14 | 佛山市森昂生物科技有限公司 | A kind of preparation method of highly-breathable medical gel material |
| CN111205838A (en) * | 2020-02-26 | 2020-05-29 | 西南石油大学 | Composite microcapsule for fractured rock mass solidification seepage prevention and preparation method thereof |
| CN111320454A (en) * | 2020-02-28 | 2020-06-23 | 江苏道通新材料科技有限公司 | River channel slope protection stone prepared from river channel dredging sludge and preparation method thereof |
| CN112456870A (en) * | 2020-11-30 | 2021-03-09 | 兰刚 | Waterproof and impervious concrete with self-repairing function and preparation method thereof |
| CN114349388A (en) * | 2022-01-19 | 2022-04-15 | 郑州大学 | Water-awakening self-healing microbial capsule and waterproof material prepared from same |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675648A (en) * | 2017-08-11 | 2018-02-09 | 汤始建华建材（苏州）有限公司 | One kind protection elastic pile |
| CN108178573A (en) * | 2017-12-19 | 2018-06-19 | 常州思宇环保材料科技有限公司 | A kind of post-tensioned prestressing pipeline Special grouting material |
| CN108046650A (en) * | 2017-12-29 | 2018-05-18 | 赵建平 | A kind of cement synergist |
| CN108164287A (en) * | 2017-12-29 | 2018-06-15 | 常州达奥新材料科技有限公司 | A kind of permanent seal cooling curing compound |
| CN108046650B (en) * | 2017-12-29 | 2021-02-02 | 江苏仁爱建材科技开发有限公司 | Cement synergist |
| CN108992703A (en) * | 2018-08-17 | 2018-12-14 | 佛山市森昂生物科技有限公司 | A kind of preparation method of highly-breathable medical gel material |
| CN111205838A (en) * | 2020-02-26 | 2020-05-29 | 西南石油大学 | Composite microcapsule for fractured rock mass solidification seepage prevention and preparation method thereof |
| CN111320454A (en) * | 2020-02-28 | 2020-06-23 | 江苏道通新材料科技有限公司 | River channel slope protection stone prepared from river channel dredging sludge and preparation method thereof |
| CN112456870A (en) * | 2020-11-30 | 2021-03-09 | 兰刚 | Waterproof and impervious concrete with self-repairing function and preparation method thereof |
| CN112456870B (en) * | 2020-11-30 | 2022-07-08 | 佛山建中混凝土有限公司 | Waterproof and impervious concrete with self-repairing function and preparation method thereof |
| CN114349388A (en) * | 2022-01-19 | 2022-04-15 | 郑州大学 | Water-awakening self-healing microbial capsule and waterproof material prepared from same |
| CN114349388B (en) * | 2022-01-19 | 2022-11-29 | 郑州大学 | Water-awakening self-healing microbial capsule and waterproof material prepared from same |
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