CN106380153A - Low-alkalinity sulphoaluminate cement gel material for house 3D printing - Google Patents
Low-alkalinity sulphoaluminate cement gel material for house 3D printing Download PDFInfo
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- CN106380153A CN106380153A CN201610768548.XA CN201610768548A CN106380153A CN 106380153 A CN106380153 A CN 106380153A CN 201610768548 A CN201610768548 A CN 201610768548A CN 106380153 A CN106380153 A CN 106380153A
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- sulphoaluminate cement
- alkalinity sulphoaluminate
- binder materials
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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
- C04B28/06—Aluminous cements
-
- 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
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a low-alkalinity sulphoaluminate cement gel material for house 3D printing. The low-alkalinity sulphoaluminate cement gel material is prepared from low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fibers, calcium carbonate, a water reducer, a coagulation accelerator, a delayed coagulant, metakaolin, saltcake and a modifier. The low-alkalinity sulphoaluminate cement gel material has a reasonable formula, is prepared from easily available materials, has good material caking properties and good stability and has a good pump-out form keeping capability and bonding properties. A build prepared from the low-alkalinity sulphoaluminate cement gel material has low alkalinity, high early strength, fire prevention, flame retardation, water prevention, immersion resistance, sound absorption, sound insulation, thermal insulation, thermal insulation, good volume stability and super strong weatherability, and satisfies building 3D printing construction continuity and building strength requirements so that the building has good integral stability and use safety.
Description
Technical field
The present invention relates to building material field, it is gelled particularly to a kind of 3D printing house low-alkalinity sulphoaluminate cement
Material.
Background technology
3D printing (3D printing) i.e. one kind of rapid shaping technique, it be a kind of based on mathematical model file,
With powdery metal or plastics etc. can jointing material, carry out the technology of constructed object by way of successively printing.3D printing is led to
Often to be realized using digital technology file printing machine.Often it is used for modeling in fields such as Making mold, industrial designs,
It is gradually available for the direct manufacture of some products afterwards, had the parts printing using this technology.This technology jewelry,
Footwear, industrial design, building, engineering and construction (AEC), automobile, Aero-Space, dentistry and medical industries, education, geography information
System, civil engineering, gun and other field have all been applied.
3D printing building is to build, by 3D printing technique, the building of getting up, by a huge three-dimensional extrusion machinery structure
Become, using gear drive to create basis and wall for house on the extrusion head of system, directly produce building.It
Principle with being made using mud, brick is very much like, the building built up can resist earthquake and other natural calamities.Printer operation can
Manipulated by computer graphics software, build the quality finishing rear building body similar to marble, higher than the intensity of concrete, and
Built-in iron pipe is not needed to be reinforced.At present, this printer has successfully built inner curve, dividing body, conduit and hollow
The building structure such as post.Common cement concrete has not adapted to the needs of 3D printing Building technology, component materials of concrete
It is both needed to change with agitating mode, to adapt to the needs of 3D printing Building technology.
The information being disclosed in this background section is merely intended to increase the understanding of the general background to the present invention, and should not
Recognize when being considered or imply in any form that this information structure has been the prior art well known to persons skilled in the art.
Content of the invention
It is an object of the invention to provide a kind of 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, thus gram
Take the shortcoming that existing Binder Materials cannot meet the demand in 3D printing house.
Another object of the present invention is to the 3D printing house preparation method of low-alkalinity sulphoaluminate cement Binder Materials.
For achieving the above object, the material the invention provides a kind of 3D printing house low-alkalinity sulphoaluminate cement is gelled
Material, described Binder Materials is mainly prepared from the following materials：Low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fibers
Dimension, calcium carbonate, water reducer, coagulant, retarder, metakaolin, saltcake and modifying agent.
Preferably, in technique scheme, described 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, press
Parts by weight meter, described Binder Materials is mainly prepared from the following materials：Low-alkalinity sulphoaluminate cement 50-70 part, inorganic
Powder 10-20 part, alkali resistant glass fiber 1-10 part, calcium carbonate 10-20 part, water reducer 1-10 part, coagulant 1-10 part, retarder
1-10 part, metakaolin 5-10 part, saltcake 1-5 part and modifying agent 5-20 part.
Preferably, in technique scheme, described 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, press
Parts by weight meter, described Binder Materials is mainly prepared from the following materials：60 parts of low-alkalinity sulphoaluminate cement, inorganic powder
15 parts, 8 parts of alkali resistant glass fiber, 15 parts of calcium carbonate, 5 parts of water reducer, 6 parts of coagulant, 5 parts of retarder, 8 parts of metakaolin, awns
3 parts of nitre and 15 parts of modifying agent.
Preferably, in technique scheme, described inorganic powder includes one of flyash and slag powders or two kinds
Mixture.
Preferably, in technique scheme, described water reducer is mainly prepared from the following materials：Calcium lignosulfonate,
Trehalose, silicone powder, shale ashes, poly- naphthalene formaldehyde sulfonate salt, prodan and silicone.
Preferably, in technique scheme, count by weight, described water reducer is mainly prepared from the following materials：
Calcium lignosulfonate 10-30 part, trehalose 1-5 part, silicone powder 5-15 part, shale ashes 1-10 part, poly- naphthalene formaldehyde sulfonate salt 15-
30 parts, prodan 2-4 part and silicone 3-8 part.
Preferably, in technique scheme, count by weight, described coagulant is mainly prepared from the following materials：
Lithium carbonate 5-15 part, aluminum sulfate 1-5 part, soda 1-11 part and fluorite 1-5 part.
Preferably, in technique scheme, count by weight, described sustained release agent is mainly prepared from the following materials：
Sodium tetraborate 1-5 part, sodium gluconate 1-5 part, ammoniacal liquor 1-5 part and tartaric acid 0.5-2 part.
Preferably, in technique scheme, described modifying agent is mainly prepared from the following materials：Modifying agent is phosphoric acid
One of salt, boric acid or citric acid, described phosphate be potassium dihydrogen phosphate, ammonium dihydrogen phosphate, sodium dihydrogen phosphate, in magnesium phosphate
Any one.
A kind of 3D printing house preparation method of low-alkalinity sulphoaluminate cement Binder Materials, comprises the following steps：
(1) prepare compound agent of regulating coagulating, coagulant and retarder are mixed mixing in proportion, prepared compound agent of regulating coagulating；
(2) by the prepared compound agent of regulating coagulating of step (1), low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fibers
Dimension, calcium carbonate, water reducer, metakaolin, saltcake and modifying agent mix and blend, are subsequently adding 40-90 part water, and stir,
Prepared 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, during use, material is sent into 3D printer for building and enters
Row prints.
Compared with prior art, the present invention has the advantages that：The 3D printing house of present invention low alkalinity sulphur aluminium
Acid salt cement Binder Materials, its formula rationally, is drawn materials conveniently, material caking property is good, stability is strong, has and good goes out pump form
Holding capacity and adhesive property, the building of printing has that basicity is low, the resistance to leaching of early strengthening and high strengthening, fire protection flame retarding, waterproof, sound-absorbing every
Sound, insulation, good volume stability, the superpower excellent properties such as weather-proof, meet 3D printing construction continuity and building
The requirement of intensity, makes building construction have good resistance to overturning and safety in utilization.And preparation method is simple, is easy to reality
Apply.
Specific embodiment
With reference to specific embodiment, the specific embodiment of the present invention is described in detail, it is to be understood that this
Bright protection domain is not limited by specific embodiment.
Embodiment 1
A kind of 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, counts, described Binder Materials by weight
Mainly it is prepared from the following materials：60 parts of low-alkalinity sulphoaluminate cement, 15 parts of inorganic powder, 8 parts of alkali resistant glass fiber, carbon
15 parts of sour calcium, 5 parts of water reducer, 6 parts of coagulant, 5 parts of retarder, 8 parts of metakaolin, 3 parts of saltcake and 15 parts of modifying agent.
Described inorganic powder is flyash.
Count by weight, described water reducer is mainly prepared from the following materials：20 parts of calcium lignosulfonate, trehalose
4 parts, 11 parts of silicone powder, 4 parts of shale ashes, 22 parts of poly- naphthalene formaldehyde sulfonate salt, 3 parts of prodan and 5 parts of silicone.
Count by weight, described coagulant is mainly prepared from the following materials：11 parts of lithium carbonate, 3 parts of aluminum sulfate, Soviet Union
Make a call to 7 parts and 3 parts of fluorite.
Count by weight, described sustained release agent is mainly prepared from the following materials：2 parts of sodium tetraborate, sodium gluconate 2
Part, 3 parts of ammoniacal liquor and 1 part of tartaric acid.
Described modifying agent is mainly prepared from the following materials：Modifying agent is boric acid.
A kind of 3D printing house preparation method of low-alkalinity sulphoaluminate cement Binder Materials, comprises the following steps：
(1) prepare to produce required raw material；
(2) prepare compound agent of regulating coagulating, coagulant and retarder are mixed mixing in proportion, prepared compound agent of regulating coagulating；
(3) by the prepared compound agent of regulating coagulating of step (2), low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fibers
Dimension, calcium carbonate, water reducer, metakaolin, saltcake and modifying agent mix and blend, are subsequently adding 70 parts of water, and stir 5min, make thing
Material mixes, and stands 2min, prepared 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, during use, by material
Send into 3D printer for building to be printed.
The present embodiment 3D printing house is detected with the performance of low-alkalinity sulphoaluminate cement Binder Materials, detection knot
Fruit is as follows：
Presetting period 25min, finish time 36min；Compression strength R2h=12.7MPa, R3d=48.5MPa, R28d=
54.1MPa；Free swelling rate：0.007%.
Embodiment 2
A kind of 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, counts, described Binder Materials by weight
Mainly it is prepared from the following materials：50 parts of low-alkalinity sulphoaluminate cement, 10 parts of inorganic powder, 1 part of alkali resistant glass fiber, carbon
10 parts of sour calcium, 1 part of water reducer, 1 part of coagulant, 1 part of retarder, 5 parts of metakaolin, 1 part of saltcake and 5 parts of modifying agent.
Described inorganic powder is slag powders.
Count by weight, described water reducer is mainly prepared from the following materials：10 parts of calcium lignosulfonate, trehalose
1 part, 5 parts of silicone powder, 1 part of shale ashes, 15 parts of poly- naphthalene formaldehyde sulfonate salt, 2 parts of prodan and 3 parts of silicone.
Count by weight, described coagulant is mainly prepared from the following materials：5 parts of lithium carbonate, 1 part of aluminum sulfate, Soviet Union
Make a call to 1 part and 1 part of fluorite.
Count by weight, described sustained release agent is mainly prepared from the following materials：1 part of sodium tetraborate, sodium gluconate 1
Part, ammoniacal liquor part and 0.5 part of tartaric acid.
Described modifying agent is mainly prepared from the following materials：Modifying agent is phosphate, and described phosphate is biphosphate
Potassium.
A kind of 3D printing house preparation method of low-alkalinity sulphoaluminate cement Binder Materials, comprises the following steps：
(1) prepare to produce required raw material；
(2) prepare compound agent of regulating coagulating, coagulant and retarder are mixed mixing in proportion, prepared compound agent of regulating coagulating；
(3) by the prepared compound agent of regulating coagulating of step (2), low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fibers
Dimension, calcium carbonate, water reducer, metakaolin, saltcake and modifying agent mix and blend, are subsequently adding 50 parts of water, and stir 4min, make thing
Material mixes, and stands 1min, prepared 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, during use, by material
Send into 3D printer for building to be printed.
The present embodiment 3D printing house is detected with the performance of low-alkalinity sulphoaluminate cement Binder Materials, detection knot
Fruit is as follows：
Presetting period 31min, finish time 42min；Compression strength R2h=11.7MPa, R3d=43.5MPa, R28d=
52.1MPa；Free swelling rate：0.011%.
Embodiment 3
A kind of 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, counts, described Binder Materials by weight
Mainly it is prepared from the following materials：70 parts of low-alkalinity sulphoaluminate cement, 20 parts of inorganic powder, 10 parts of alkali resistant glass fiber,
20 parts of calcium carbonate, 10 parts of water reducer, 10 parts of coagulant, 10 parts of retarder, 10 parts of metakaolin, 5 parts of saltcake and 20 parts of modifying agent.
Described inorganic powder is the mixture of flyash and two kinds of slag powders.The mass ratio of mixing is 1：1.
Count by weight, described water reducer is mainly prepared from the following materials：30 parts of calcium lignosulfonate, trehalose
5 parts, 15 parts of silicone powder, 10 parts of shale ashes, 30 parts of poly- naphthalene formaldehyde sulfonate salt, 4 parts of prodan and 8 parts of silicone.
Count by weight, described coagulant is mainly prepared from the following materials：15 parts of lithium carbonate, 5 parts of aluminum sulfate, Soviet Union
Make a call to 11 parts and 5 parts of fluorite.
Count by weight, described sustained release agent is mainly prepared from the following materials：5 parts of sodium tetraborate, sodium gluconate 5
Part, 5 parts of ammoniacal liquor and 2 parts of tartaric acid.
Described modifying agent is mainly prepared from the following materials：Modifying agent is citric acid.
A kind of 3D printing house preparation method of low-alkalinity sulphoaluminate cement Binder Materials, comprises the following steps：
(1) prepare to produce required raw material；
(2) prepare compound agent of regulating coagulating, coagulant and retarder are mixed mixing in proportion, prepared compound agent of regulating coagulating；
(3) by the prepared compound agent of regulating coagulating of step (2), low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fibers
Dimension, calcium carbonate, water reducer, metakaolin, saltcake and modifying agent mix and blend, are subsequently adding 90 parts of water, and stir 6min, make thing
Material mixes, and stands 2min, prepared 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, during use, by material
Send into 3D printer for building to be printed.
The present embodiment 3D printing house is detected with the performance of low-alkalinity sulphoaluminate cement Binder Materials, detection knot
Fruit is as follows：
Presetting period 34min, finish time 44min；Compression strength R2h=12.5MPa, R3d=43.8MPa, R28d=
51.1MPa；Free swelling rate：0.013%.
Embodiment 4
A kind of 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, counts, described Binder Materials by weight
Mainly it is prepared from the following materials：60 parts of low-alkalinity sulphoaluminate cement, 15 parts of inorganic powder, 8 parts of alkali resistant glass fiber, carbon
15 parts of sour calcium, 5 parts of water reducer, 6 parts of coagulant, 5 parts of retarder and 15 parts of modifying agent.
Described inorganic powder is flyash.
Count by weight, described water reducer is mainly prepared from the following materials：20 parts of calcium lignosulfonate, trehalose
4 parts, 11 parts of silicone powder, 4 parts of shale ashes, 22 parts of poly- naphthalene formaldehyde sulfonate salt, 3 parts of prodan and 5 parts of silicone.
Count by weight, described coagulant is mainly prepared from the following materials：11 parts of lithium carbonate, 3 parts of aluminum sulfate, Soviet Union
Make a call to 7 parts and 3 parts of fluorite.
Count by weight, described sustained release agent is mainly prepared from the following materials：2 parts of sodium tetraborate, sodium gluconate 2
Part, 3 parts of ammoniacal liquor and 1 part of tartaric acid.
Described modifying agent is mainly prepared from the following materials：Modifying agent is boric acid.
A kind of 3D printing house preparation method of low-alkalinity sulphoaluminate cement Binder Materials, comprises the following steps：
(1) prepare to produce required raw material；
(2) prepare compound agent of regulating coagulating, coagulant and retarder are mixed mixing in proportion, prepared compound agent of regulating coagulating；
(3) by the prepared compound agent of regulating coagulating of step (2), low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fibers
Dimension, calcium carbonate, water reducer and modifying agent mix and blend, are subsequently adding 70 parts of water, and stir 5min, so that material is mixed, quiet
Put 2min, prepared 3D printing house low-alkalinity sulphoaluminate cement Binder Materials, during use, material is sent into 3D for building and beats
Print machine is printed.
The present embodiment 3D printing house is detected with the performance of low-alkalinity sulphoaluminate cement Binder Materials, detection knot
Fruit is as follows：
Presetting period 47min, finish time 62min；Compression strength R2h=10.1MPa, R3d=39.5MPa, R28d=
46.1MPa；Free swelling rate：0.018%.
The description of the aforementioned specific illustrative embodiment to the present invention illustrate that and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can much be changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles of the present invention and its reality should
With so that those skilled in the art be capable of and utilize the present invention various different exemplary and
Various different selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (10)
1. a kind of 3D printing house with low-alkalinity sulphoaluminate cement Binder Materials it is characterised in that described Binder Materials is main
It is prepared from the following materials：Low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fiber, calcium carbonate, water reducer, rush
Solidifying agent, retarder, metakaolin, saltcake and modifying agent.
2. 3D printing house according to claim 1 low-alkalinity sulphoaluminate cement Binder Materials is it is characterised in that press
Parts by weight meter, described Binder Materials is mainly prepared from the following materials：Low-alkalinity sulphoaluminate cement 50-70 part, inorganic
Powder 10-20 part, alkali resistant glass fiber 1-10 part, calcium carbonate 10-20 part, water reducer 1-10 part, coagulant 1-10 part, retarder
1-10 part, metakaolin 5-10 part, saltcake 1-5 part and modifying agent 5-20 part.
3. 3D printing house according to claim 1 low-alkalinity sulphoaluminate cement Binder Materials is it is characterised in that press
Parts by weight meter, described Binder Materials is mainly prepared from the following materials：60 parts of low-alkalinity sulphoaluminate cement, inorganic powder
15 parts, 8 parts of alkali resistant glass fiber, 15 parts of calcium carbonate, 5 parts of water reducer, 6 parts of coagulant, 5 parts of retarder, 8 parts of metakaolin, awns
3 parts of nitre and 15 parts of modifying agent.
4. 3D printing house according to claim 1 with low-alkalinity sulphoaluminate cement Binder Materials it is characterised in that institute
State inorganic powder and include one of flyash and slag powders or two kinds of mixture.
5. 3D printing house according to claim 1 with low-alkalinity sulphoaluminate cement Binder Materials it is characterised in that institute
State water reducer to be mainly prepared from the following materials：Calcium lignosulfonate, trehalose, silicone powder, shale ashes, poly- naphthaldehyde sulfonic acid
Sodium salt, prodan and silicone.
6. 3D printing house according to claim 1 low-alkalinity sulphoaluminate cement Binder Materials is it is characterised in that press
Parts by weight meter, described water reducer is mainly prepared from the following materials：Calcium lignosulfonate 10-30 part, trehalose 1-5 part,
Silicone powder 5-15 part, shale ashes 1-10 part, poly- naphthalene formaldehyde sulfonate salt 15-30 part, prodan 2-4 part and silicone 3-8 part.
7. 3D printing house according to claim 1 low-alkalinity sulphoaluminate cement Binder Materials is it is characterised in that press
Parts by weight meter, described coagulant is mainly prepared from the following materials：Lithium carbonate 5-15 part, aluminum sulfate 1-5 part, soda 1-11
Part and fluorite 1-5 part.
8. 3D printing house according to claim 1 low-alkalinity sulphoaluminate cement Binder Materials is it is characterised in that press
Parts by weight meter, described sustained release agent is mainly prepared from the following materials：Sodium tetraborate 1-5 part, sodium gluconate 1-5 part, ammonia
Water 1-5 part and tartaric acid 0.5-2 part.
9. 3D printing house according to claim 1 with low-alkalinity sulphoaluminate cement Binder Materials it is characterised in that institute
State modifying agent to be mainly prepared from the following materials：Modifying agent is one of phosphate, boric acid or citric acid, described phosphate
It is potassium dihydrogen phosphate, ammonium dihydrogen phosphate, sodium dihydrogen phosphate, any one in magnesium phosphate.
10. a kind of 3D printing house as claimed in claim 1 preparation method of low-alkalinity sulphoaluminate cement Binder Materials, its
It is characterised by, comprise the following steps：
(1) prepare compound agent of regulating coagulating, coagulant and retarder are mixed mixing in proportion, prepared compound agent of regulating coagulating；
(2) by the prepared compound agent of regulating coagulating of step (1), low-alkalinity sulphoaluminate cement, inorganic powder, alkali resistant glass fiber, carbon
Sour calcium, water reducer, metakaolin, saltcake and modifying agent mix and blend, are subsequently adding 40-90 part water, and stir, prepared 3D
Print house low-alkalinity sulphoaluminate cement Binder Materials, during use, material is sent into 3D printer for building and is printed.
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| CN201610768548.XA CN106380153A (en) | 2016-08-30 | 2016-08-30 | Low-alkalinity sulphoaluminate cement gel material for house 3D printing |
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| CN201610768548.XA CN106380153A (en) | 2016-08-30 | 2016-08-30 | Low-alkalinity sulphoaluminate cement gel material for house 3D printing |
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| CN107311576A (en) * | 2017-06-01 | 2017-11-03 | 马鞍山十七冶工程科技有限责任公司 | A kind of low alkalinity ecological concrete and preparation method thereof |
| CN109626918A (en) * | 2019-01-01 | 2019-04-16 | 中国人民解放军63653部队 | Retardation setting type low alkalinity composite gelled material and preparation method thereof |
| CN109626918B (en) * | 2019-01-01 | 2021-12-31 | 中国人民解放军63653部队 | Retarding type low-alkalinity composite cementing material and preparation method thereof |
| CN115073104A (en) * | 2022-05-05 | 2022-09-20 | 湖南中联重科新材料科技有限公司 | White 3D printing mortar composition, white 3D printing mortar, and preparation method and application thereof |
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