CN108083742A - A kind of 3D printing method for preparing mortar of high compressive strength - Google Patents
A kind of 3D printing method for preparing mortar of high compressive strength Download PDFInfo
- Publication number
- CN108083742A CN108083742A CN201711419646.3A CN201711419646A CN108083742A CN 108083742 A CN108083742 A CN 108083742A CN 201711419646 A CN201711419646 A CN 201711419646A CN 108083742 A CN108083742 A CN 108083742A
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- China
- Prior art keywords
- high compressive
- printing method
- mortar
- printing
- compressive strength
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C04B28/02—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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- 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
Abstract
The invention discloses a kind of 3D printing method for preparing mortar of high compressive strength, include the following steps：Discarded granite, gangue are uniformly mixed, obtain aggregate；Aluminate cement, slag powders, flyash compound, waste plastic particle, water-reducing agent, plasticity-maintaining agent, hydrophober, diatomite are uniformly mixed, obtain cementitious material；Cementitious material is sent into mixer, aggregate is added under stirring and is uniformly mixed, is mixed with water, obtains the 3D printing mortar of high compressive strength.The 3D printing method for preparing mortar of high compressive strength proposed by the present invention, it has good workability, easy to operate, operable time is long, is suitable for the construction of 3D printing extrusion molding, gained mortar has excellent constructability, with good plasticity, compressive property, it is not in trickling, phenomenon of caving in that stacking, which is affixed by work, and printing can form good linking between layers, because being connected the bad building element for causing printing there are many bedding voids security risk will not be left to building.
Description
Technical field
The present invention relates to 3D printing mortar technical field more particularly to a kind of 3D printing mortar preparation sides of high compressive strength
Method.
Background technology
3D printing technique is known as the key technology of the third time industrial revolution, it be by digital technology file printing machine come
It realizes, by 3-D scanning, composition, then material object is manufactured with 3D printer, the utilization of 3D printing technique is very wide
It is general, it is also all used in building field.
It is including mortar in " ink " that 3D printer nozzle sprays when 3D printing technique is applied to building trade
Material.To meet the needs of 3D printing, mortar must possess better compression strength, and current mortar also can not meet demand.
The content of the invention
It is prepared by technical problems based on background technology, the 3D printing mortar that the present invention proposes a kind of high compressive strength
Method has good workability, easy to operate, and operable time is long, is suitable for the construction of 3D printing extrusion molding, and gained mortar has excellent
Good constructability, have good plasticity, compressive property, stacking be affixed by work be not in trickling, phenomenon of caving in, printable layer with
Good linking can be formed between layer, it will not be because being connected the bad building element for causing printing there are many bedding voids, to building
Object leaves security risk.
A kind of 3D printing method for preparing mortar of high compressive strength proposed by the present invention, includes the following steps：
S1, discarded granite, gangue are uniformly mixed, obtain aggregate；
S2, by aluminate cement, slag powders, flyash compound, waste plastic particle, water-reducing agent, plasticity-maintaining agent, hydrophobic
Agent, diatomite are uniformly mixed, and obtain cementitious material；
S3, cementitious material is sent into mixer, aggregate is added under stirring and is uniformly mixed, is mixed with water, obtains
To the 3D printing mortar of high compressive strength.
Preferably, in S1, granite is discarded, the weight ratio of gangue is 50-80：15-25.
Preferably, in S2, water-reducing agent is Beta-methyl naphthalene sulphonate.
Preferably, in S2, plasticity-maintaining agent is hydroxypropyl cellulose.
Preferably, in S2, aluminate cement, slag powders, flyash compound, the weight ratio of waste plastic particle are
50-100：5-15：5-10：2-5.
Preferably, in S2, the raw material of flyash compound includes by weight：By 5-15 parts of copper sulphate, 2-8 parts of oleic acid
Sodium, 20-40 part flyash, 100-120 parts of ethanol solutions, 8-14 parts of hydrazine hydrate solutions.
Preferably, in S2, the concentration of ethanol solution is 60-80wt%.
Preferably, in S2, the concentration of hydrazine hydrate solution is 8-9wt%.
Preferably, flyash compound is prepared using following technique：Copper sulphate, enuatrol, flyash, ethanol solution are mixed
It closes uniformly, it is 5-15 DEG C to keep temperature, and hydrazine hydrate solution is added dropwise under stirring, and follow-up continuous stirring completely, mixing speed is added dropwise
For 4000-4200r/min, centrifugation removes supernatant, washs in ethanol, dry, obtains flyash compound.
The present invention has good workability, easy to operate, and operable time is long, is suitable for the construction of 3D printing extrusion molding；Using
Aluminate cement is compounded with slag powders, flyash compound, waste plastic particle, has excellent constructability, is had fine
Plasticity, compressive property, stacking be affixed by work be not in trickling, phenomenon of caving in, printing can form good linking between layers,
Because being connected the bad building element for causing printing there are many bedding voids security risk will not be left to building.
In the flyash compound of the present invention, in ethanol solution, copper sulphate is acted on enuatrol, anti-by hydrazine hydrate
Should, final gained nanoparticle size is uniform, and grain size is small, can effectively be attached to fine coal gray surface, effectively enhances flyash and compares table
Area is big, and on the one hand appearance rule coordinates aluminate cement effect, mutual degree of scatter is high, which has good power
Learn performance, compressive property is good, and aluminate cement toughness is made to be greatly improved, on the other hand with slag powders, waste plastic particle
Cooperation can compensate for the early-age shrinkage of cement-based material, and product has good impervious and water resistance, be less prone to water suction leakage
Phenomenon.
Specific embodiment
In the following, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of 3D printing method for preparing mortar of high compressive strength, includes the following steps：
S1,50kg is discarded to granite, 25kg gangues are uniformly mixed, obtain aggregate；
S2, by 50kg aluminate cements, 15kg slag powders, 5kg flyash compound, 5kg waste plastics particle, 0.5kg
Beta-methyl naphthalene sulphonate water-reducing agent, 1.5kg hydroxypropyl celluloses plasticity-maintaining agent, 0.1kg hydrophober, the mixing of 15kg diatomite
Uniformly, cementitious material is obtained；
Flyash compound is prepared using following technique：5kg copper sulphate, 8kg enuatrols, 20kg flyash, 120kg is dense
It spends and is uniformly mixed for 60wt% ethanol solutions, it is 15 DEG C to keep temperature, and it is 9wt% hydrazine hydrates that 8kg concentration is added dropwise under stirring
Solution, is added dropwise follow-up continuous stirring 20min, mixing speed 4200r/min completely, and centrifugation removes supernatant, washes in ethanol
It washs, it is dry, obtain flyash compound；
S3, cementitious material is sent into mixer, aggregate is added under stirring and is uniformly mixed, it is equal to add in the mixing of 30kg water
It is even, obtain the 3D printing mortar of high compressive strength.
Embodiment 2
A kind of 3D printing method for preparing mortar of high compressive strength, includes the following steps：
S1,80kg is discarded to granite, 15kg gangues are uniformly mixed, obtain aggregate；
S2, by 100kg aluminate cements, 5kg slag powders, 10kg flyash compound, 2kg waste plastics particle, 1kg β-
Methyl naphthalene sulfonic acid salt condensation polymer water-reducing agent, 0.5kg hydroxypropyl celluloses plasticity-maintaining agent, 0.2kg hydrophober, the mixing of 5kg diatomite are equal
It is even, obtain cementitious material；
Flyash compound is prepared using following technique：By 15kg copper sulphate, 2kg enuatrols, 40kg flyash, 100kg
Concentration is uniformly mixed for 80wt% ethanol solutions, and it is 5 DEG C to keep temperature, and 14kg concentration is added dropwise under stirring and is hydrated for 8wt%
Hydrazine solution, is added dropwise follow-up continuous stirring 40min, mixing speed 4000r/min completely, and centrifugation removes supernatant, washes in ethanol
It washs, it is dry, obtain flyash compound；
S3, cementitious material is sent into mixer, aggregate is added under stirring and is uniformly mixed, it is equal to add in the mixing of 60kg water
It is even, obtain the 3D printing mortar of high compressive strength.
Embodiment 3
A kind of 3D printing method for preparing mortar of high compressive strength, includes the following steps：
S1,60kg is discarded to granite, 22kg gangues are uniformly mixed, obtain aggregate；
S2, by 60kg aluminate cements, 12kg slag powders, 6kg flyash compound, 4kg waste plastics particle, 0.6kg
Beta-methyl naphthalene sulphonate water-reducing agent, 1.2kg hydroxypropyl celluloses plasticity-maintaining agent, 0.12kg hydrophober, 12kg diatomite mix
It closes uniformly, obtains cementitious material；
Flyash compound is prepared using following technique：8kg copper sulphate, 6kg enuatrols, 25kg flyash, 115kg is dense
It spends and is uniformly mixed for 65wt% ethanol solutions, it is 12 DEG C to keep temperature, and 10kg concentration is added dropwise under stirring and is hydrated for 8.8wt%
Hydrazine solution, is added dropwise follow-up continuous stirring 25min, mixing speed 4150r/min completely, and centrifugation removes supernatant, washes in ethanol
It washs, it is dry, obtain flyash compound；
S3, cementitious material is sent into mixer, aggregate is added under stirring and is uniformly mixed, it is equal to add in the mixing of 40kg water
It is even, obtain the 3D printing mortar of high compressive strength.
Embodiment 4
A kind of 3D printing method for preparing mortar of high compressive strength, includes the following steps：
S1,70kg is discarded to granite, 18kg gangues are uniformly mixed, obtain aggregate；
S2, by 80kg aluminate cements, 8kg slag powders, 8kg flyash compound, 3kg waste plastics particle, 0.8kg β-
Methyl naphthalene sulfonic acid salt condensation polymer water-reducing agent, 0.8kg hydroxypropyl celluloses plasticity-maintaining agent, 0.18kg hydrophober, the mixing of 8kg diatomite are equal
It is even, obtain cementitious material；
Flyash compound is prepared using following technique：By 12kg copper sulphate, 4kg enuatrols, 35kg flyash, 105kg
Concentration is uniformly mixed for 75wt% ethanol solutions, and it is 8 DEG C to keep temperature, and it is 8.2wt% water that 12kg concentration is added dropwise under stirring
Hydrazine solution is closed, follow-up continuous stirring 35min, mixing speed 4050r/min completely is added dropwise, centrifugation removes supernatant, in ethanol
Washing, it is dry, obtain flyash compound；
S3, cementitious material is sent into mixer, aggregate is added under stirring and is uniformly mixed, it is equal to add in the mixing of 50kg water
It is even, obtain the 3D printing mortar of high compressive strength.
The 3D printing mortar of 4 gained high compressive strength of embodiment and common building are subjected to performance survey with 3D printing mortar
Examination, result are as follows：
| Test event | Layer linking porosity, % | Compression strength, MPa | Tensile bond strength, MPa |
| 4 product of embodiment | 15.2 | 50.4 | 2.5 |
| Ordinary mortar | 25 | 32 | 1.2 |
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. the 3D printing method for preparing mortar of a kind of high compressive strength, which is characterized in that include the following steps：
S1, discarded granite, gangue are uniformly mixed, obtain aggregate；
S2, by aluminate cement, slag powders, flyash compound, waste plastic particle, water-reducing agent, plasticity-maintaining agent, hydrophober, silicon
Diatomaceous earth is uniformly mixed, and obtains cementitious material；
S3, cementitious material is sent into mixer, aggregate is added under stirring and is uniformly mixed, is mixed with water, obtains height
The 3D printing mortar of compression strength.
2. the 3D printing method for preparing mortar of high compressive strength according to claim 1, which is characterized in that in S1, give up
Abandon granite, the weight ratio of gangue is 50-80：15-25.
3. the 3D printing method for preparing mortar of high compressive strength according to claim 1 or 2, which is characterized in that in S2,
Water-reducing agent is Beta-methyl naphthalene sulphonate.
4. according to the 3D printing method for preparing mortar of claim 1-3 any one of them high compressive strengths, which is characterized in that
In S2, plasticity-maintaining agent is hydroxypropyl cellulose.
5. according to the 3D printing method for preparing mortar of claim 1-4 any one of them high compressive strengths, which is characterized in that
In S2, aluminate cement, slag powders, flyash compound, the weight ratio of waste plastic particle are 50-100：5-15：5-10：2-
5。
6. according to the 3D printing method for preparing mortar of claim 1-5 any one of them high compressive strengths, which is characterized in that
In S2, the raw material of flyash compound includes by weight：By 5-15 parts of copper sulphate, 2-8 parts of enuatrols, 20-40 parts of flyash,
100-120 parts of ethanol solutions, 8-14 parts of hydrazine hydrate solutions.
7. the 3D printing method for preparing mortar of high compressive strength according to claim 6, which is characterized in that in S2, second
The concentration of alcoholic solution is 60-80wt%.
8. the 3D printing method for preparing mortar of high compressive strength according to claim 6, which is characterized in that in S2, water
The concentration for closing hydrazine solution is 8-9wt%.
9. according to the 3D printing method for preparing mortar of claim 1-8 any one of them high compressive strengths, which is characterized in that powder
Coal ash compound is prepared using following technique：Copper sulphate, enuatrol, flyash, ethanol solution are uniformly mixed, holding temperature is
5-15 DEG C, hydrazine hydrate solution is added dropwise under stirring, is added dropwise follow-up continuous stirring completely, mixing speed 4000-4200r/min,
Centrifugation removes supernatant, washs in ethanol, dry, obtains flyash compound.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711419646.3A CN108083742A (en) | 2017-12-25 | 2017-12-25 | A kind of 3D printing method for preparing mortar of high compressive strength |
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| CN201711419646.3A CN108083742A (en) | 2017-12-25 | 2017-12-25 | A kind of 3D printing method for preparing mortar of high compressive strength |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2388714C1 (en) * | 2009-02-24 | 2010-05-10 | Государственное образовательное учреждение высшего профессионального образования "Петербургский государственный университет путей сообщения" | Heat resistant brick mortar |
| CN104445358A (en) * | 2014-11-06 | 2015-03-25 | 国核电力规划设计研究院 | Cuprous oxide nano microspheres in double-layered structure and preparation method thereof |
| CN104891891A (en) * | 2015-05-06 | 2015-09-09 | 同济大学 | 3D printing cement-based material and preparation method thereof |
| CN106082816A (en) * | 2016-06-13 | 2016-11-09 | 马鞍山市金韩防水保温工程有限责任公司 | A kind of mould proof thermal insulation mortar and preparation method thereof |
| CN107098722A (en) * | 2017-06-14 | 2017-08-29 | 合肥市旺友门窗有限公司 | A kind of new concrete porous brick and preparation method thereof |
-
2017
- 2017-12-25 CN CN201711419646.3A patent/CN108083742A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2388714C1 (en) * | 2009-02-24 | 2010-05-10 | Государственное образовательное учреждение высшего профессионального образования "Петербургский государственный университет путей сообщения" | Heat resistant brick mortar |
| CN104445358A (en) * | 2014-11-06 | 2015-03-25 | 国核电力规划设计研究院 | Cuprous oxide nano microspheres in double-layered structure and preparation method thereof |
| CN104891891A (en) * | 2015-05-06 | 2015-09-09 | 同济大学 | 3D printing cement-based material and preparation method thereof |
| CN106082816A (en) * | 2016-06-13 | 2016-11-09 | 马鞍山市金韩防水保温工程有限责任公司 | A kind of mould proof thermal insulation mortar and preparation method thereof |
| CN107098722A (en) * | 2017-06-14 | 2017-08-29 | 合肥市旺友门窗有限公司 | A kind of new concrete porous brick and preparation method thereof |
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Application publication date: 20180529 |