CN107298546A - Alkali-activated carbonatite binder materials and its Method of printing for 3D printing - Google Patents
Alkali-activated carbonatite binder materials and its Method of printing for 3D printing Download PDFInfo
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- CN107298546A CN107298546A CN201710455869.9A CN201710455869A CN107298546A CN 107298546 A CN107298546 A CN 107298546A CN 201710455869 A CN201710455869 A CN 201710455869A CN 107298546 A CN107298546 A CN 107298546A
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 239000003513 alkali Substances 0.000 title claims abstract description 32
- 238000010146 3D printing Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000007639 printing Methods 0.000 title claims abstract description 25
- 239000010430 carbonatite Substances 0.000 title claims abstract description 23
- 239000011230 binding agent Substances 0.000 title claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 239000013530 defoamer Substances 0.000 claims abstract description 9
- 239000012190 activator Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- -1 polypropylene glycerol Polymers 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 239000011343 solid material Substances 0.000 claims description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 6
- 229920002748 Basalt fiber Polymers 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 4
- 239000002134 carbon nanofiber Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 2
- 239000006004 Quartz sand Substances 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- 229920005610 lignin Polymers 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 150000002790 naphthalenes Chemical class 0.000 claims description 2
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 239000008247 solid mixture Substances 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 239000003643 water by type Substances 0.000 claims 1
- 238000007906 compression Methods 0.000 abstract description 13
- 230000006835 compression Effects 0.000 abstract description 13
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000012615 aggregate Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 abstract 1
- 239000002086 nanomaterial Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 235000019353 potassium silicate Nutrition 0.000 description 5
- 239000003818 cinder Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00181—Mixtures specially adapted for three-dimensional printing (3DP), stereo-lithography or prototyping
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of alkali-activated carbonatite binder materials and its Method of printing for 3D printing.Raw material are made up of industrial residue, alkali-activator, fine aggregate, defoamer, water reducer, water, coarse aggregate, high-intensity fiber and micro Nano material；The 3D printing method printing shaping that prepared slurry mixture is fed by two pumps.The present invention is directed to the problem of 3D printing early age strength of concrete is low, and alkali-activated carbonatite binder materials effectively improves slurry performance；Two pump feeds turn avoid alkali-activated carbonatite binder materials rate of set soon, the problem of being not suitable for 3D printing；Mix after various fibers, the final resistance to compression of concrete and bending resistance printed also are greatly improved.
Description
Technical field
The present invention relates to a kind of alkali-activated carbonatite binder materials and preparation method thereof, and in particular to one kind is applied to 3D printing technique
Alkali-activated carbonatite cementitious material concrete.
Background technology
Alkali-activated carbonatite binder materials is main using blast-furnace cinder, granulation phosphorus slag, slag, flyash equal industrial residue as raw material, its
Energy consumption is low, discharge is few, is referred to as green low-carbon binder materials.This material also has many excellent properties such as early stage strong simultaneously
Spend height, good endurance, heat endurance good etc., it is considered to be a kind of novel gelled material with broad prospect of application.Therefore, with
The growing interest in recent years to climate warming, the preparation of alkali-activated carbonatite binder materials and application technology turn into green construction material field
Study hotspot and forward position.
In recent years, 3D printing technique was being developed rapidly, future may serious impact traditional manufacture, compared to tradition system
Making industry, it has some incomparable advantages.First, 3D printing technique need not drive grinding tool, and the manufacture of product is greatly lowered
Time and cost；Second, 3D printing technique can reduce the use of labour, so as to reduce cost of labor；3rd, 3D printing
Journey is the process of an increasing material, so the waste of material can be reduced.
At present, alkali-activated carbonatite binder materials rate of set is fast, and poor fluidity, service behaviour is poor, and 3D printing is to service behaviour
There is higher requirement, so the problem of alkali-activated carbonatite binder materials is used for 3D printing is urgently to be resolved hurrily.Common 3D printing concrete material
Expect early strength it is low, be not enough to support the material of last layer, limit printing concrete height so that its print procedure by
Very big restriction is arrived.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of alkali-activated carbonatite binder materials for 3D printing and
Its Method of printing, 3D printing technique is combined with alkali-activated carbonatite cementitious material concrete so that alkali-activated carbonatite binder materials is excited
Agent and bonding component are separately transported at printing head respectively with two pumps stirs printing, is so ensureing enough mobility
Also utilize the high characteristic of alkali-activated carbonatite binder materials early strength, and raw material environmental protection simultaneously.
Technical scheme is as follows：
For the alkali-activated carbonatite binder materials of 3D printing, by weight percentage, including following component：
Described industrial residue micro mist is selected from specific surface area and is not less than 400 ㎡/㎏, index of basicity MbIt is levigate not less than 1
Blast-furnace cinder, or specific surface area are not less than 400 ㎡/㎏, SiO2The levigate granulation phosphorus slags of/CaO 0.8~1.2, or specific surface area
Not less than 400 ㎡/㎏, SiO2The levigate graining steel slags of/CaO 0.7~1.1, or specific surface area not less than 400 ㎡/㎏, F classes,
Any one in C class flyash and combinations thereof.
Described cement is the portland cement of strength grade 42.5 or more.
Described alkali-activator be modulus be not less than 1.0 liquid glass, wherein, the mass concentration of sodium metasilicate is 20%
~30%.
Described fine aggregate is the yellow ground or quartz sand or tailings and its mixture that particle size diameter is less than 2.5mm.
The coarse aggregate is rubble or cobble, and particle diameter is between 5~20mm.
Described defoamer is one or both of polypropylene glycerol aether or dimethyl silicone polymer.
Described water reducer is in lignin sulfonic acid sodium salt water reducer, naphthalene series high-efficiency water-reducing agent, high-efficiency water-reducing agent of poly-carboxylic acid
One kind or mixture, water-reducing rate be not less than 15%.
The high-intensity fiber is one kind in steel fibre, basalt fibre, carbon fiber, alkali-free glass fibre, and wherein steel is fine
Tie up as diameter 0.17mm~0.2mm, length is 6~20mm, tensile strength is more than 1800Mpa；Basalt fibre diameter 9 μm~13
μm, length is 6~20mm, and tensile strength is more than 3000MPa；8 μm~18 μm of carbon fiber diameter, length is 6~20mm, tension
Intensity is more than 3500MPa；5 μm~10 μm of alkali-free glass fibre diameter, length is 6~20mm, and tensile strength is more than 2500MPa.
The micro nanometer fiber is one kind in carbon nano-fiber, silicon carbide whisker, Zirconium oxide fibre.Wherein, carbon nanometer
Fibre diameter is 90~100nm, and length is 50~200 μm, is not less than 200 ㎡/g than surface；Silicon carbide whisker a diameter of 0.1~
1.0 μm, whisker length is 10~200 μm, and tensile strength is more than 2.9GPa；A diameter of 7~10 μm of Zirconium oxide fibre, length is 2
~12mm, tensile strength is more than 1200MPa.
Compared with prior art, beneficial effects of the present invention are as follows：
(1) raw materials come from industrial residue, rationally using resource, are conducive to preserving the ecological environment, and reduce
The consumption of cement, reduces energy resource consumption and the discharge of carbon dioxide, realizes Green Sustainable.
(2) present invention can greatly enrich printing raw material, it is to avoid alkali swashs using the 3D printing technique of two pump feeds
Cementitious material concrete early stage poor fluidity, the shortcoming of service behaviour difference are sent out, while it is strong to take full advantage of alkali-activated material early stage
The characteristics of degree height, environmental protection.
(3) present invention is swashed by the way that the combination of alkali-activated material and 3D technology is given people to provide a kind of new approaches using alkali
The heat endurance of hair jelly gel material is good, and the excellent properties such as good endurance can print some special type function materials.Meet some special
The application of different occasion.
Embodiment
A kind of Method of printing of alkali-activated carbonatite cementitious material concrete suitable for 3D printing technique, including following prepare walk
Suddenly：
(a) industrial residue micro mist, portland cement, fine aggregate and coarse aggregate are weighed in proportion, are put into mixer
It is well mixed；
(b) micro nanometer fiber is added dissolved with the mixed solution of defoamer, water reducer and water, ultrasound is divided in Ultrasound Instrument
Dissipate more than 10 minutes, then add in the solid mixture of mixer, stir 3~5min, solid material is become from dispersity
Into viscous paste state；
(c) high-intensity fiber is uniformly added in the mixture of viscous paste state and continues 5~10min of stirring, added
Alkali-activator, stirs；
(e) overall process is printed well by Computer Design, and passes through computer program control printing arm movement locus；
(f) obtained alkali activating agent solution and mixture slurry are pumped into 3D printing whisking machines arm with two respectively
On, the operating rate of controlling pump is consistent alkali activating agent solution and the ratio of mixture slurry, and is stirred printing.Tool
Body 3D printing process is as shown in Figure 1.
Embodiment 1
Choose blast-furnace cinder micro-powder (the index of basicity M of percentage by weight 25.8%b=1), 20.7% coarse aggregate and
30.9% yellow ground fine aggregate is put into stirrer for mixing and mixed thoroughly, 0.08% carbon nano-fiber is added dissolved with 0.01% defoamer and
In the mixed liquor of 0.26% water of water reducer 8.3% and ultrasonic disperse more than 10 minutes in Ultrasound Instrument, then add it to and stir
Mix in machine, stir 5-10min, solid material is become viscous paste state from dispersity, it is then that 9.81% steel fibre is equal
It is even to be added in slurry, obtain mixture slurry.Then water glass solution (modulus is 1.5) and mixture slurry are passed with delivery pump
Defeated arrive is stirred at printing whisking machines arm.By the program of Computer Design, control printing whisking machines arm carries out successively coagulation
Soil printing, until completing the print procedure of whole building, finally gives 3D printing alkali-activated carbonatite cementitious material concrete building.
Thus concrete is obtained, not only print procedure is smooth, and printed concrete has good early strength,
Its natural curing 3d compression strength is 33.6MPa, and its natural curing 7d compression strength is 45.8MPa, its natural curing
28d compression strength is 57.5MPa.
Embodiment 2
Choose the portland cement of percentage by weight 2.9%, flyash 26.6%, 23.6% coarse aggregate and 29.5% yellow ground
Fine aggregate is put into stirrer for mixing and mixed thoroughly, and 0.14% silicon carbide fibre is added and subtracted dissolved with 0.01% defoamer and 0.15%
In the mixed liquor of the water of aqua 4.9% and ultrasonic disperse more than 10 minutes in Ultrasound Instrument, then add it in mixer, stir
5-10min, makes solid material become viscous paste state from dispersity, and 9.88% steel fibre is uniformly then added into slurry
In, obtain mixture slurry.Then waterglass (modulus is 1.8) and mixture slurry are transferred to printing stirring with delivery pump
Stirred at robotic arm.By the program of Computer Design, control printing whisking machines arm carries out successively concrete and printed, until complete
Into the print procedure of whole building, 3D printing alkali-activated carbonatite cementitious material concrete building is finally given.
Thus concrete is obtained, not only print procedure is smooth, and printed concrete has good early strength,
Its natural curing 3d compression strength is 32.9MPa, and its natural curing 7d compression strength is 44.7MPa, its natural curing
28d compression strength is 59.3MPa.
Embodiment 3
The portland cement of selection percentage by weight 6.1%, slag 12.1%, (alkalescence refers to blast-furnace cinder micro-powder 12.1%
Number Mb=1), 24.2% coarse aggregate and 33.4% yellow ground fine aggregate are put into stirrer for mixing and mixed thoroughly, and 0.27% zirconium oxide is fine
Dimension is added dissolved with the mixed liquor of 0.01% defoamer and 0.23% water of water reducer 7.1% and ultrasonic disperse 10 in Ultrasound Instrument
More than minute, 5-10min is stirred, solid material is become viscous paste state from dispersity, then by 0.59% basalt
Fiber is uniformly added in slurry, obtains mixture slurry.Then with delivery pump by waterglass (modulus is 1.7) and mixture slurry
It is transferred at printing whisking machines arm and stirs, by the program of Computer Design, control printing whisking machines arm is successively mixed
Solidifying soil printing, until completing the print procedure of whole building, finally gives 3D printing alkali-activated carbonatite cementitious material concrete building.
Thus concrete is obtained, not only print procedure is smooth, and printed concrete has good early strength,
Its natural curing 3d compression strength is 40.0MPa, and its natural curing 7d compression strength is 51.2MPa, its natural curing
28d compression strength is 65.8MPa.
Embodiment 4
The portland cement of selection percentage by weight 4.1%, phosphorus slag 23.4%, 22.0% coarse aggregate and 30.3% yellow ground
Fine aggregate is put into stirrer for mixing and mixed thoroughly, and 0.25% Zirconium oxide fibre is added and subtracted dissolved with 0.01% defoamer, 0.21%
Ultrasonic disperse more than 10 minutes in the mixed liquor of aqua and 6.3% water and in Ultrasound Instrument, then add it in mixer, stir
5-10min is mixed, solid material is become viscous paste state from dispersity, 9.87% steel fibre is uniformly then added to slurry
In body, mixture slurry is obtained.Then waterglass (modulus is 1.6) and mixture slurry are transferred to printing stirring with delivery pump
Stirred at robotic arm, by designed computer program, control printing whisking machines arm carries out successively concrete and printed, until
The print procedure of whole building is completed, 3D printing alkali-activated carbonatite cementitious material concrete building is finally given.
Thus concrete is obtained, not only print procedure is smooth, and printed concrete has good early strength,
Its natural curing 3d compression strength is 29.3MPa, and its natural curing 7d compression strength is 40.5MPa, its natural curing
28d compression strength is 58.1MPa.
Claims (9)
1. the alkali-activated carbonatite binder materials for 3D printing, it is characterised in that by weight percentage, including following component：
2. material as claimed in claim 1, it is characterised in that described industrial residue micro mist is not less than selected from specific surface area
400 ㎡/㎏, F classes, C class flyash, or specific surface area are not less than 400 ㎡/㎏, index of basicity MbGround blast furnace ore deposit not less than 1
Slag, or specific surface area are not less than 400 ㎡/㎏, SiO2The levigate granulation phosphorus slags of/CaO 0.8~1.2, or specific surface area are not less than
400 ㎡/㎏, SiO2/ CaO any one or its combinations in 0.7~1.1 levigate graining steel slag.
3. material as claimed in claim 1, it is characterised in that described cement is the silicate of strength grade 42.5 or more
Cement.
4. material as claimed in claim 1, it is characterised in that described alkali-activator is that modulus is not less than 1.0 aqueous waters
Glass, wherein, the mass concentration of sodium metasilicate is 20%~30%.
5. material as claimed in claim 1, it is characterised in that described fine aggregate is the yellow ground that particle size diameter is less than 2.5mm
Or quartz sand or tailings and its mixture；The coarse aggregate is rubble or cobble, and particle diameter is between 5~20mm.
6. material as claimed in claim 1, it is characterised in that described defoamer is polypropylene glycerol aether or poly- diformazan
One or both of radical siloxane；Described water reducer is lignin sulfonic acid sodium salt water reducer, naphthalene series high-efficiency water-reducing agent, poly- carboxylic
One kind or mixture in sour high efficiency water reducing agent, water-reducing rate are not less than 15%.
7. material as claimed in claim 1, it is characterised in that the high-intensity fiber is steel fibre, basalt fibre, carbon fibre
One kind in dimension, alkali-free glass fibre, wherein, steel fibre is diameter 0.17mm~0.2mm, and length is 6~20mm, tensile strength
More than 1800Mpa；9 μm~13 μm of basalt fibre diameter, length is 6~20mm, and tensile strength is more than 3000MPa；Carbon fiber
8 μm~18 μm of diameter, length is 6~20mm, and tensile strength is more than 3500MPa；5 μm~10 μm of alkali-free glass fibre diameter, it is long
Spend for 6~20mm, tensile strength is more than 2500MPa.
8. material as claimed in claim 1, it is characterised in that the micro nanometer fiber be carbon nano-fiber, silicon carbide whisker,
One kind in Zirconium oxide fibre, wherein, a diameter of 90~100nm of carbon nano-fiber, length is 50~200 μm, not smaller than surface
In 200 ㎡/g；A diameter of 0.1~1.0 μm of silicon carbide whisker, whisker length is 10~200 μm, and tensile strength is more than 2.9GPa；
A diameter of 7~10 μm of Zirconium oxide fibre, length is 2~12mm, and tensile strength is more than 1200MPa.
9. the Method of printing of the alkali-activated carbonatite binder materials for 3D printing as described in claim 1-8 is any, it is characterised in that
Described comprises the following steps：
(a) industrial residue micro mist, portland cement, fine aggregate and coarse aggregate are weighed in proportion, is put into stirrer for mixing
Uniformly；
(b) micro nanometer fiber is added dissolved with the mixed solution of defoamer, water reducer and water, ultrasonic disperse 10 in Ultrasound Instrument
More than minute, then add in the solid mixture of mixer, stir 3~5min, solid material is become viscous from dispersity
Property slurry state；
(c) high-intensity fiber is uniformly added in the mixture of viscous paste state and continues 5~10min of stirring, added alkali and swash
Agent is sent out, is stirred；
(e) design printing overall process parameter, and control to print arm movement locus on request；
(f) obtained alkali activating agent solution and mixture slurry are pumped on 3D printing whisking machines arm with two respectively,
The operating rate of controlling pump is consistent alkali activating agent solution and the ratio of mixture slurry, and is stirred printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455869.9A CN107298546B (en) | 2017-06-16 | 2017-06-16 | Alkali-activated carbonatite cementitious material and its Method of printing for 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455869.9A CN107298546B (en) | 2017-06-16 | 2017-06-16 | Alkali-activated carbonatite cementitious material and its Method of printing for 3D printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107298546A true CN107298546A (en) | 2017-10-27 |
| CN107298546B CN107298546B (en) | 2019-08-30 |
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| CN201710455869.9A Active CN107298546B (en) | 2017-06-16 | 2017-06-16 | Alkali-activated carbonatite cementitious material and its Method of printing for 3D printing |
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| CN108178567A (en) * | 2018-02-01 | 2018-06-19 | 济南大学 | A kind of alkali slag cement concrete of 3D printing and preparation method thereof |
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| CN109503103A (en) * | 2018-12-17 | 2019-03-22 | 南京绿色增材智造研究院有限公司 | A kind of superhigh tenacity alkali-activated carbonatite gunite concrete and preparation method thereof |
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