CN108178567A - A kind of alkali slag cement concrete of 3D printing and preparation method thereof - Google Patents
A kind of alkali slag cement concrete of 3D printing and preparation method thereof Download PDFInfo
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- CN108178567A CN108178567A CN201810103220.5A CN201810103220A CN108178567A CN 108178567 A CN108178567 A CN 108178567A CN 201810103220 A CN201810103220 A CN 201810103220A CN 108178567 A CN108178567 A CN 108178567A
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- alkali
- slag
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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
- C04B28/006—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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/1535—Mixtures thereof with other inorganic cementitious materials or other activators with alkali metal containing activators, e.g. sodium hydroxide or waterglass
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to building material technical fields, and in particular to it is a kind of using slag, slag as the 3D printing of raw material alkali slag cement concrete.It is made of following raw material：Solid particulate matter, alkali-activator, retarder and water, the alkali-activator quality are the 4%~10% of solid particulate matter quality, and retarder is the 0.5 3.5% of solid particulate matter quality, and water is the 10%~45% of solid particulate matter quality.The present invention is using slag powders and steel-making slag powder as primary raw material, and using alkali-activated carbonatite technology, preparation method is simple, easily operated, does not need to high-temperature calcination, reduces energy consumption, reduces a large amount of soils that the discharge of the industrial residues such as slag occupies, protects and saved soil.Reduce the dependence to natural resources, saved the energy, reduce CO2Discharge, the advantages that alleviating environmental pollution, and 3D printing technique can be used, can save building and curing time, reduce concrete structure pouring striking time, improve construction efficiency, save material.
Description
Technical field
The present invention relates to building material technical fields, and in particular to it is a kind of using slag, slag as the 3D printing of raw material alkali
Slag concrete.
Background technology
Alkali slag cement has desirable physical mechanical property and endurance quality with concrete, is energy saving, sharp useless, environmental protection new
Type green construction material.Alkali slag cement is developed so far existing more than 50 years with concrete, is exerted jointly by scholars several generations
Power, the alkali slag cements such as slag composition and structure, the physical chemistry basis of aquation, hydrated product and concrete theoretical foundation are increasingly
It is ripe.The difficult point and doubtful point of alkali slag cement and concrete（The problem of setting time controls and generation alkali doubt）
The 80s and 90s in 19th century obtains systematic research.These achievements have effectively pushed the exploitation of alkali slag cement and concrete with answering
With.
Alkali slag cement concrete has that early strength is high, fire resistance is good, anti-permeability performance is excellent, resistant to sea water aggressivity
The series of advantages such as good, function admirable have a wide range of application, but because its setting time is difficult to control.Limit its application.
Invention content
The defects of present invention is in order to make up the prior art, using alkali-activated carbonatite technology, using industrial residues such as slag, slags,
With reference to 3D printing technique requirement, alkali slag cement concrete of a kind of 3D printing and preparation method thereof is provided, it is useless to realize change
It is simple for process for treasured, it is easy to implement.
The present invention is achieved through the following technical solutions：
A kind of alkali exciting slag cement concrete of 3D printing, it is characterized in that, it is made of following raw material：Solid particulate matter, alkali swash
Agent, retarder and water are sent out, the alkali-activator quality is the 4%~10% of solid particulate matter quality, and retarder is solid particulate matter
The 0.5-3.5% of quality, water are the 10%~45% of solid particulate matter quality.
The alkali-activator is solid base or the mixed solution of solid base and waterglass.
The solid base is sodium hydroxide, the one or more of potassium hydroxide, sodium hydroxide, sodium carbonate, and the mixing is molten
Liquid is solid base and the mixed modulus of waterglass is 0.9-2.0 solution.
The retarder is one or more of mixtures of sodium carbonate, sodium sulphate or Boratex, when retarder is two kinds
Mixture when, Boratex and sodium sulphate or sodium carbonate ratio are 1:1, when retarder is three kinds of mixture, Boratex with
The ratio 2 of sodium carbonate and sodium sulphate:1:1.
The solid particulate matter is made of the raw material of following weight ratio：40~55 parts of slag powders, 10~20 parts of steel-making slag powder, river
Husky or 15~20 parts of Machine-made Sand, 5~35 parts of limestone aggregate.
The specific surface area of the slag powders is 370~500m2/ kg, steel-making slag powder specific surface area be respectively 300~450m2/
kg。
The fineness modulus of the river sand or Machine-made Sand is 2.0-3.0, and clay content is less than 1.0%.
The grain size of the limestone aggregate is 5-10mm.
The alkali exciting slag cement preparation method of concrete of above-mentioned 3D printing, it is characterized in that：Include the following steps：（1）System
Standby mixed powder：Slag, steel slag grinding are uniformly mixed to meeting the requirements respectively, it is spare；
（2）Prepare alkali activating agent solution：Alkali activating agent solution is made solid base is soluble in water or solid base is dissolved in water glass
The mixed solution of regulation modulus is prepared in glass as alkali activating agent solution, it is spare；
（3）Mixed powder, retarder, river sand or Machine-made Sand, limestone aggregate are weighed according to proportioning, batch mixer is placed in and is stirred
Uniformly, step is added in（2）The alkali activating agent solution of preparation continues to stir, and adds retarder and continues to stir, and is uniformly mixed, then
It pours into 3D printer, concrete is printed according to 3D printer custom program.
Step（1）After the slag, steel slag grinding, 0.5-1.5h is first dried at 95-110 DEG C, is then remixed
It is even, it is more uniformly distributed solid particulate matter mixing.
Step（3）Described was stirred time control at 0.1-0.3 hours, and alkali-activated carbonatite concrete is made to obtain works fine
Performance, slump 150-220mm, presetting period can be adjusted to 10-30 minutes according to the volume of retarder, meet 3D and beat
Print the performance requirement of material.
The present invention turns waste into wealth using slag, slag as raw material, at low cost, using alkali-activated carbonatite technology, using 3D printing technique
Concrete is prepared, is effectively increased the utilization ways of slag, slag, alleviates the influence of its environmental pollution, is industrial residue
Comprehensive utilization open an effective approach, have good economic and social benefit.Preparation method of the present invention is unburned to be exempted from
It steams, it is simple for process, easily operated, compared with traditional concrete, installation mold in advance and the form removal subsequently conserved are not needed to, is beaten
It can be prepared by finished product, working efficiency height and high yield rate after the completion of print.The concrete reduces energy consumption, saves without using cement
The about energy, reduces CO2Discharge, gained concrete performance is superior, pollution is small, waste utilization rate is high.The present invention is to section
About the energy, industrial residue utilization, protection resource significance are great, meet the continuable development principle in China.This patent is in retarder
On the basis of research and development, it is prepared for a kind of alkali slag cement concrete of 3D printing.
Specific embodiment
The present invention is further elaborated with reference to specific embodiment, it should be appreciated that, the description below be only for
It explains the present invention, its content is not defined.
Embodiment one：
Concrete is tested according to the following recipe：40 parts of slag powders, 10 parts of steel-making slag powder, common 15 parts of river sand, 35 parts of lime stone,
The mixed solution that alkali-activator is NaOH and modulus is 3.1~3.4 waterglass, wherein 2 parts of NaOH, 1.5 parts of waterglass；Water 35
Part, 2 parts of retarder is the 1 of Boratex and sodium sulphate:1 mixture；
The alkali slag cement preparation method of concrete of 3D printing is：
It is 400~420m by steel slag grinding to specific surface area2/ kg, slag milling to specific surface area are 390~420 m2/ kg, so
They are placed in 105 DEG C of baking oven afterwards and is dried 1.5 hours or so, is uniformly mixed to obtain mixed powder, it is spare；
It according to said ratio precise mixed powder and common river sand, limestone aggregate, is placed in batch mixer and stirs evenly, by hydrogen-oxygen
Change sodium, which is dissolved in waterglass, is made alkali-activator, in the mixture that the addition of the mixed liquor of alkali-activator and water is stirred evenly, stirs
After mixing 2 minutes, add in retarder and continue stirring 8 minutes, be uniformly mixed them.
It weighs the material that 20kg is stirred evenly to be placed in 3D printer, opens 3D printer in advance, set print pattern
And program, start to print.Gained concrete is strip concrete, is added up printing type using stratiform, the concrete of printing is in 20
Natural curing is carried out DEG C at room temperature to providing age, and the performance of gained concrete early stage and 28 days is tested, experiment knot
Fruit is shown in Table 1.
1 3D printing alkali slag cement concrete performance of table
| Title | Slump/mm | Fluidity/mm | Workability | 1 day compression strength/MPa | 3 days compression strength/MPa | 28 days compression strength/MPa |
| Alkali slag cement concrete | 195 | 175 | Well | 41.5 | 57.5 | 63.2 |
Embodiment two：
Concrete is tested according to the following recipe：45 parts of slag powders, 15 parts of steel-making slag powder, common 15 parts of river sand, 25 parts of lime stone；
6 parts of alkali-activator, is the mixed solution of NaOH and waterglass, modulus 2.0,40 parts of water, 2.5 parts of retarder, be Boratex with
The mixture of sodium carbonate.
The alkali slag cement preparation method of concrete of 3D printing is：
It is 360~410m by steel slag grinding to specific surface area2/ kg, the specific surface area of slag is 380~430 m2Then/kg will
They, which are placed in 105 DEG C of baking oven, dries 1.2 hours or so, is uniformly mixed to obtain mixed powder, spare；
According to said ratio precise steel-making slag powder, slag powders and common river sand, limestone aggregate, it is equal to be placed in batch mixer stirring
It is even, sodium hydroxide is dissolved in waterglass, alkali-activator is made, alkali-activator is added to the steel-making slag powder stirred evenly, slag
In the mixture of powder, river sand and lime stone, after stirring 2 minutes, add in water and retarder continues stirring 8 minutes, mix them
Uniformly.
It weighs the material that 20kg is stirred evenly to be placed in 3D printer, opens 3D printer in advance, set print pattern
And program, start to print.Gained concrete is strip concrete, is added up printing type using stratiform, the concrete of printing is in 20
Natural curing is carried out DEG C at room temperature to providing age, and the performance of gained concrete early stage and 28 days is tested, experiment knot
Fruit is shown in Table 2.
2 3D printing alkali slag cement concrete performance of table
Embodiment three：
Concrete is tested according to the following recipe：50 parts of slag powders, 10 parts of steel-making slag powder, common 20 parts of river sand, 20 parts of lime stone；
5 parts of alkali-activator is NaOH and waterglass（Modulus is 3.1~3.4）Mixed solution, modulus is configured to 1.5；42 parts of water,
2.8 parts of retarder is Boratex and sodium sulphate, the mixture of sodium carbonate.
The alkali slag cement preparation method of concrete of 3D printing is：
It is 370~420m by steel slag grinding to specific surface area2/ kg, the specific surface area of slag is 380~420 m2Then/kg will
They, which are placed in 105 DEG C of baking oven, dries 2.0 hours or so, is uniformly mixed to obtain mixed powder, spare；
According to said ratio precise steel-making slag powder, slag powders and common river sand, limestone aggregate, it is equal to be placed in batch mixer stirring
It is even, sodium hydroxide is dissolved in waterglass, alkali-activator is made, the steel that the addition of the mixed liquor of alkali-activator and water is stirred evenly
Ground-slag, slag powders, river sand and lime stone mixture in, after stirring 2 minutes, add in retarder and continue stirring 9 minutes, make it
Be uniformly mixed.
It weighs the material that 20kg is stirred evenly to be placed in 3D printer, opens 3D printer in advance, set print pattern
And program, start to print.Gained concrete is strip concrete, is added up printing type using stratiform, the concrete of printing is in 20
Natural curing is carried out DEG C at room temperature to providing age, and the performance of gained concrete early stage and 28 days is tested, experiment knot
Fruit is shown in Table 3.
3 3D printing alkali slag cement concrete performance of table
The present invention is using slag powders and steel-making slag powder as primary raw material, and using alkali-activated carbonatite technology, preparation method is simple, easily operated, no
High-temperature calcination is needed, reduces energy consumption.A large amount of soils that the discharge of the industrial residues such as slag occupies are reduced, protect and saved soil
Ground.Reduce the dependence to natural resources, saved the energy, reduce CO2Discharge, alleviate environmental pollution.And it can be used
3D printing technique can save building and curing time, reduce concrete structure pouring striking time, improve construction efficiency, section
About material the advantages that.Construction material is prepared using industrial residue, the comprehensive utilization for building castoff opens one effectively
Approach has good economic benefit, social benefit and environmental benefit.
The present invention is according to the 3D printing scheme being pre-designed, the concrete product of printing speed specific shape, and concrete
Product excellent working performance, properties of product are stablized.The present invention also provides the preparation method of the alkali slag cement concrete, the party
Alkali slag cement concrete is prepared using slag with reference to 3D printing technique, it is simple for process, it is easy to implement.
Claims (10)
1. a kind of alkali exciting slag cement concrete of 3D printing, it is characterized in that, it is made of following raw material：Solid particulate matter, alkali
Exciting agent, retarder and water, the alkali-activator quality are the 4%~10% of solid particulate matter quality, and retarder is solid particle
The 0.5-3.5% of amount of substance, water are the 10%~45% of solid particulate matter quality.
2. the alkali exciting slag cement concrete of 3D printing according to claim 1, it is characterized in that：The alkali-activator is
The mixed solution of solid base or solid base and waterglass.
3. the alkali exciting slag cement concrete of 3D printing according to claim 2, it is characterized in that：The solid base is hydrogen
Sodium oxide molybdena, potassium hydroxide, sodium hydroxide, sodium carbonate one or more, the mixed solution mixes with waterglass for solid base
Modulus afterwards is 0.9-2.0 solution.
4. the alkali exciting slag cement concrete of 3D printing according to claim 1, it is characterized in that：The retarder is carbon
One or more of mixtures of sour sodium, sodium sulphate or Boratex, when retarder is two kinds of mixture, Boratex and sulfuric acid
Sodium or sodium carbonate ratio are 1:1, when retarder is three kinds of mixture, Boratex and the ratio 2 of sodium carbonate and sodium sulphate:1:
1。
5. the alkali exciting slag cement concrete of 3D printing according to claim 1, it is characterized in that：The solid particulate matter
It is made of the raw material of following weight ratio：40~55 parts of slag powders, 10~20 parts of steel-making slag powder, river sand or 15~20 parts of Machine-made Sand, stone
5~35 parts of lime stone aggregate.
6. the alkali exciting slag cement concrete of 3D printing according to claim 5, it is characterized in that：The ratio of the slag powders
Surface area is 370~500m2/ kg, steel-making slag powder specific surface area be respectively 300~450m2/kg。
7. the alkali exciting slag cement concrete of 3D printing according to claim 5, it is characterized in that：The river sand or mechanism
The fineness modulus of sand is 2.0-3.0, and clay content is less than 1.0%, and the grain size of the limestone aggregate is 5-10mm.
8. the alkali exciting slag cement preparation method of concrete of 3D printing according to claim 1, it is characterized in that：Including such as
Lower step：
（1）Prepare mixed powder：Slag, steel slag grinding are uniformly mixed to meeting the requirements respectively, it is spare；
（2）Prepare alkali activating agent solution：Alkali activating agent solution is made solid base is soluble in water or solid base is dissolved in water glass
The mixed solution of regulation modulus is prepared in glass as alkali activating agent solution, it is spare；
（3）Mixed powder, retarder, river sand or Machine-made Sand, limestone aggregate are weighed according to proportioning, batch mixer is placed in and is stirred
Uniformly, step is added in（2）The alkali activating agent solution of preparation continues to stir, and adds retarder and continues to stir, and is uniformly mixed, then
It pours into 3D printer, concrete is printed according to 3D printer custom program.
9. preparation method according to claim 8, it is characterized in that：Step（1）After the slag, steel slag grinding, first exist
0.5-1.5h is dried at 95-110 DEG C, is then remixed uniformly, is more uniformly distributed solid particulate matter mixing.
10. preparation method according to claim 8, it is characterized in that：Step（3）The time control that is stirred exists
0.1-0.3 hours, alkali-activated carbonatite concrete is made to obtain works fine performance, slump 150-220mm.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275899A (en) * | 2018-03-09 | 2018-07-13 | 济南大学 | A kind of alkali-excited cement and preparation method thereof |
| CN109399995A (en) * | 2018-11-13 | 2019-03-01 | 济南大学 | A kind of viscosity modifier suitable for 3D printing sulphoaluminate cement base material |
| CN109734355A (en) * | 2019-02-27 | 2019-05-10 | 济南大学 | A kind of viscosity modifier suitable for 3D printing plain boiled water cement-based material |
| CN110482972A (en) * | 2019-07-16 | 2019-11-22 | 广州大学 | A kind of morning strong pavement patching material and preparation method thereof |
| CN111302709A (en) * | 2020-02-28 | 2020-06-19 | 中国建筑材料科学研究总院有限公司 | Alkali-activated cementing material for 3D printing and printing method thereof |
| CN112759338A (en) * | 2021-01-13 | 2021-05-07 | 湖北工业大学 | Slag-based cementing material for 3D printing and preparation method thereof |
| CN113087431A (en) * | 2021-03-26 | 2021-07-09 | 武汉理工大学 | Retarder of alkali-activated cementing material |
| CN114956764A (en) * | 2022-04-14 | 2022-08-30 | 南京绿色增材智造研究院有限公司 | 3D printing concrete added with organic sand and glass powder and preparation method thereof |
| CN114988770A (en) * | 2022-05-31 | 2022-09-02 | 哈尔滨理工大学 | Extrusion curing type 3D printing fiber-alkali slag material and preparation method thereof |
| CN115368093A (en) * | 2022-08-24 | 2022-11-22 | 武汉大学 | Alkali-activated 3D printing concrete material based on modified attapulgite and preparation thereof |
| CN116102334A (en) * | 2022-11-30 | 2023-05-12 | 燕山大学 | Alkali residue-based 3D printing alkali-activated fiber concrete and preparation method and printing method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275899A (en) * | 2018-03-09 | 2018-07-13 | 济南大学 | A kind of alkali-excited cement and preparation method thereof |
| CN108275899B (en) * | 2018-03-09 | 2020-12-01 | 济南大学 | Alkali-activated cement and preparation method thereof |
| CN109399995B (en) * | 2018-11-13 | 2021-04-16 | 济南大学 | Viscosity modifier suitable for 3D printing of sulphoaluminate cement-based material |
| CN109399995A (en) * | 2018-11-13 | 2019-03-01 | 济南大学 | A kind of viscosity modifier suitable for 3D printing sulphoaluminate cement base material |
| CN109734355A (en) * | 2019-02-27 | 2019-05-10 | 济南大学 | A kind of viscosity modifier suitable for 3D printing plain boiled water cement-based material |
| CN109734355B (en) * | 2019-02-27 | 2021-04-20 | 济南大学 | Viscosity modifier suitable for 3D printing white cement-based material |
| CN110482972A (en) * | 2019-07-16 | 2019-11-22 | 广州大学 | A kind of morning strong pavement patching material and preparation method thereof |
| CN111302709A (en) * | 2020-02-28 | 2020-06-19 | 中国建筑材料科学研究总院有限公司 | Alkali-activated cementing material for 3D printing and printing method thereof |
| CN112759338A (en) * | 2021-01-13 | 2021-05-07 | 湖北工业大学 | Slag-based cementing material for 3D printing and preparation method thereof |
| CN112759338B (en) * | 2021-01-13 | 2022-04-29 | 湖北工业大学 | Slag-based cementing material for 3D printing and preparation method thereof |
| CN113087431A (en) * | 2021-03-26 | 2021-07-09 | 武汉理工大学 | Retarder of alkali-activated cementing material |
| CN114956764A (en) * | 2022-04-14 | 2022-08-30 | 南京绿色增材智造研究院有限公司 | 3D printing concrete added with organic sand and glass powder and preparation method thereof |
| CN114988770A (en) * | 2022-05-31 | 2022-09-02 | 哈尔滨理工大学 | Extrusion curing type 3D printing fiber-alkali slag material and preparation method thereof |
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Application publication date: 20180619 |