CN106278067A - Carbon Fiber Reinforced Cement Composites for 3D printing technique - Google Patents
Carbon Fiber Reinforced Cement Composites for 3D printing technique Download PDFInfo
- Publication number
- CN106278067A CN106278067A CN201610681060.3A CN201610681060A CN106278067A CN 106278067 A CN106278067 A CN 106278067A CN 201610681060 A CN201610681060 A CN 201610681060A CN 106278067 A CN106278067 A CN 106278067A
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- CN
- China
- Prior art keywords
- carbon fiber
- cement
- printing technique
- fiber reinforced
- composites
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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
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/386—Carbon
-
- 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
- C04B7/345—Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34
Abstract
The invention discloses a kind of Carbon Fiber Reinforced Cement Composites for 3D printing technique.By dispersant, carbon fiber and cement matrix composition, carbon fiber is chopped asphalt base carbon fiber, and the constituent of cement based matrix includes: cement, fine mineral admixture, and finely husky, additive and mixing water, wherein cement is calcium sulphoaluminate modified portland cement.The Carbon Fiber Reinforced Cement Composites for 3D printing technique that the present invention makes, has the excellent properties such as high specific strength, density is little, setting time is short, it is possible to meet the 3D printing technique performance to material and the requirements at the higher level of the suitability.The calcium sulphoaluminate modified portland cement that the present invention uses simultaneously not only has a series of good characteristics of portland cement; but also have that sulphate aluminium cement hydration and hardening is fast, early strength is high, hardening time the features such as volume contraction is little, durability is good, and energy-saving consumption-reducing and environmental conservation etc. are had important practical significance.
Description
Technical field
The present invention relates to a kind of 3D printed material, be specifically related to a kind of carbon fiber reinforced cement base for 3D printing technique
Composite.
Background technology
3D printing technique be a kind of with subtract material manufacture and etc. the far different manufacture skill of the traditional manufacturing technology such as material manufacture
Art, it is based on the three-dimensional data of model, by printer nozzle extruded material, successively prints increase material and generates 3D in fact
The technology of body, is therefore also called interpolation and manufactures.With traditional subtract material manufacture compared with, 3D prints and is possible not only to improve material use
Rate, it is also possible to produce more complicated product with the shorter time.The most prominent advantage of 3D printing technique is to add without machinery
Work or any mould, just directly can generate the part of any shape from computer graphics data, thus greatly shorten product
Lead time, improve productivity ratio and reduce production cost, and there is higher printing precision.Continuous along with 3D printing technique
Progressive and ripe, it has obtained necessarily in fields such as high-end manufacture, education, architectural design, medical treatment, Aero-Space, cultural creative
Application.
3D is printed upon after building field is applied, and is formed and a kind of overturns traditional brand-new construction method.Build with tradition
The technology of building is compared, and 3D prints the advantage major embodiment of building in the following areas: print speed, higher building efficiency faster；
It is no longer necessary to use template, can be the most cost-effective；More environmental protection, reduces building waste and building dust, and reduction is made an uproar
Sound pollution；Reduce the use of builder, reduce the labor intensity of workman；While saving construction material, internal structure also may be used
To use the principle such as acoustics, mechanics to accomplish optimization according to demand；Can give building designers broader design space, break through
Existing design concept, the building of the complicated shape that traditional architectural technology cannot complete is printed in design.
But as an emerging technology, performance and the suitability of material are had higher requirement by 3D technology, available
Material category is on the low side, and material cost is higher, and material becomes one of principal element of restriction 3D printing technique development.Traditional cement
Base concrete material is a kind of typical construction material, big yet with its function singleness, fragility, from great, tensile strength and
Bending strength is poor, it is impossible to meet the requirements at the higher level that performance and the suitability of material are proposed by 3D printing technique.Carbon fiber is due to tool
Have that high specific strength, high ratio modulus, density is little, corrosion-resistant, good conductivity, to excellent properties such as person poultry harmless quite by material science
The favor of worker, is considered the excellent reinforcement of many composites.Broken fiber is joined in cement matrix, makes brokenly fibre
Dimension strengthens cement-base composite material, not only can improve the defect of cement self mechanical property so that it is has light weight, intensity height, expand
Scattered property is strong, molding rear surface quality advantages of higher, thus is applicable to 3D printing technique.
The production practices that calcium sulphoaluminate modified portland cement has enriched at present, this kind of cement is improving cement
Performance, reduce consume, increase considerably mixing material usage amount aspect achieve good economic results in society.This kind of cement plays
Tricalcium silicate and strong, the most high-strength characteristic of anhydrous calcium sulphoaluminate mineral, be successfully realized tricalcium silicate and anhydrous at low temperatures
Calcium sulfoaluminate minerals compound with coexist, the cement after being combined not only has a series of good characteristics of portland cement, and
Also have that sulphate aluminium cement hydration and hardening is fast, early strength is high, hardening time the features such as volume contraction is little, durability is good.By
In its calcium sulphoaluminate modified portland cement grog, the volcanic ash class materials such as flyash are had superpower activity excitation effect, because of
This can strengthen the utilization rate of the mixing materials such as flyash in cement, thus the consumption reducing grog the most just decreases disappearing of energy
Consumption, energy-saving consumption-reducing and environmental conservation etc. are had important practical significance by this.
Summary of the invention
It is an object of the invention to provide a kind of Carbon Fiber Reinforced Cement Composites for 3D printing technique, intensity
High and plasticity strong, solve existing ordinary cement sill brittleness big, from great, poor fluidity, be not suitable for 3D print procedure
Technical problem.
For achieving the above object, technical scheme disclosed by the invention is: a kind of fibre reinforced for 3D printing technique
Cement-base composite material, by dispersant, carbon fiber and cement based matrix composition, described carbon fiber is chopped asphalt base carbon fiber,
The constituent of described cement based matrix includes: cement, fine mineral admixture, and finely husky, additive and mixing water, described cement is
Calcium sulphoaluminate modified portland cement.
Preferably, a length of 1-2mm of described chopped carbon fiber.
Preferably, described dispersant is methylcellulose.
Preferably, the amount of described chopped carbon fiber accounts for the 2.0 of this Carbon Fiber Reinforced Cement Composites cumulative volume
4.0%。
Preferably, the constituent of described calcium sulphoaluminate modified portland cement base matrix includes according to mass percent:
Limestone 70.5%～73.5%；
Aluminium ore tailings 12.5%～13.5%；
Sandstone 0.5%～2.5%；
Industrial waste gypsum 6%～8%；
Flyash 7.5%～10.5%.
The invention also discloses the preparation method of a kind of Carbon Fiber Reinforced Cement Composites for 3D printing technique,
Comprise the steps:
Step one, take appropriate methylcellulose and be dissolved in warm water, uniform stirring 2-3min, spread out, be subsequently adding
Chopped asphalt base carbon fiber, continues uniform stirring 3-4min；
Step 2, the quality proportioning of constituent according to cement based matrix, prepare calcium sulphoaluminate modified portland cement；
Step 3, the carbon fiber stirred and methylcellulose are mixed homogeneously with calcium sulphoaluminate modified portland cement, water
Build molding of vibrating, can be prepared by the Carbon Fiber Reinforced Cement Composites for 3D printing technique.
Preferably, the volume of described methylcellulose is less than the 1% of cement quality.
Compared with prior art, the present invention's it is a technical advantage that:
Broken fiber is joined in cement matrix by the present invention, makes brokenly fiber reinforced cement-based composite material, not only can improve water
The defect of mud self mechanical property so that it is have light weight, intensity is high, diffusibility is strong, molding rear surface quality advantages of higher, thus
It is applicable to 3D printing technique.
The cement that the present invention uses is calcium sulphoaluminate modified portland cement, and this kind of cement has played tricalcium silicate and anhydrous
The characteristic that calcium sulfoaluminate minerals is early strong, the most high-strength, is successfully realized answering of tricalcium silicate and anhydrous calcium sulphoaluminate mineral at low temperatures
Closing and coexist, the cement after being combined not only has a series of good characteristics of portland cement, but also has aluminium sulfate water
Mud hydration and hardening is fast, early strength is high, hardening time the features such as volume contraction is little, durability is good, it is possible to obtain and condense faster
Time and more preferable early strength, thus meet 3D and print condensation of materials time and the requirements at the higher level of early strength.
The cement that the present invention uses is calcium sulphoaluminate modified portland cement, due to its calcium sulphoaluminate modified portland cement
Grog has superpower activity excitation effect to volcanic ash class materials such as flyash, therefore can strengthen flyash etc. in cement
The utilization rate of mixing material, thus reduce the consumption of grog.Owing to grog needs to consume substantial amounts of energy in sintering process, therefore
The consumption reducing grog the most just decreases the consumption of energy, and this has important reality meaning to energy-saving consumption-reducing and environmental conservation etc.
Justice.
Accompanying drawing explanation
Fig. 1 is a kind of preparation flow figure for 3D printing technique Carbon Fiber Reinforced Cement Composites of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is embodied as technical scheme to be described in further details.
Embodiment 1
As a example by making a kind of asphalt base carbon fiber enhancing cement-base composite material.Calcium sulphoaluminate modified Portland in the present embodiment
The proportioning of the constituent of cement is: limestone 70.5%；Aluminium ore tailings 12.5%；Sandstone 1.0%；Industrial waste gypsum
6.5% ；Flyash 9.5%.
The preparation method of above-mentioned 3D printed material is:
Step one, take and account for the methylcellulose of cement quality 0.6% and be dissolved in warm water, uniform stirring 2-3min, it is scatter
Come, be subsequently adding the chopped asphalt base carbon fiber of account for this Carbon Fiber Reinforced Cement Composites cumulative volume 2.0%, continue all
Even stirring 3-4min；
Step 2, the quality proportioning of constituent according to above-mentioned cement based matrix, prepare calcium sulphoaluminate modified portland cement；
Step 3, the carbon fiber stirred and methylcellulose are mixed homogeneously with calcium sulphoaluminate modified portland cement, water
Build molding of vibrating, can be prepared by the Carbon Fiber Reinforced Cement Composites for 3D printing technique.
Embodiment 2
As a example by making a kind of asphalt base carbon fiber enhancing cement-base composite material.Calcium sulphoaluminate modified Portland in the present embodiment
The proportioning of the constituent of cement is: limestone 71.5%；Aluminium ore tailings 11.5%；Sandstone 0.5%；Industrial waste gypsum
6.5% ；Flyash 10.5%.
The preparation method of above-mentioned 3D printed material is:
Step one, take and account for the methylcellulose of cement quality 0.6% and be dissolved in warm water, uniform stirring 2-3min, it is scatter
Come, be subsequently adding the chopped asphalt base carbon fiber of account for this Carbon Fiber Reinforced Cement Composites cumulative volume 4.0%, continue all
Even stirring 3-4min；
Step 2, the quality proportioning of constituent according to above-mentioned cement based matrix, prepare calcium sulphoaluminate modified portland cement；
Step 3, the carbon fiber stirred and methylcellulose are mixed homogeneously with calcium sulphoaluminate modified portland cement, water
Build molding of vibrating, can be prepared by the Carbon Fiber Reinforced Cement Composites for 3D printing technique.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (7)
1. the Carbon Fiber Reinforced Cement Composites for 3D printing technique, it is characterised in that by dispersant, carbon fiber
Forming with cement based matrix, described carbon fiber is chopped asphalt base carbon fiber, and the constituent of described cement based matrix includes water
Mud, fine mineral admixture, fine husky, additive and mixing water, described cement is calcium sulphoaluminate modified portland cement.
Carbon Fiber Reinforced Cement Composites for 3D printing technique the most according to claim 1, it is characterised in that
The a length of 1-2mm of described chopped asphalt base carbon fiber.
Carbon Fiber Reinforced Cement Composites for 3D printing technique the most according to claim 1, it is characterised in that
Described dispersant is methylcellulose.
Carbon Fiber Reinforced Cement Composites for 3D printing technique the most according to claim 1 and 2, its feature exists
In, the content of described chopped asphalt base carbon fiber accounts for the 2.0 ~ 4.0% of this Carbon Fiber Reinforced Cement Composites total content.
Carbon Fiber Reinforced Cement Composites for 3D printing technique the most according to claim 1, it is characterised in that
The constituent of described calcium sulphoaluminate modified portland cement includes according to mass percent:
Limestone 70.5%～73.5%
Aluminium ore tailings 12.5%～13.5%
Sandstone 0.5%～2.5%
Industrial waste gypsum 6%～8%
Flyash 7.5%～10.5%.
6. according to the Carbon Fiber Reinforced Cement Composites for 3D printing technique described in Claims 1 to 5 any one
Preparation method, it is characterised in that comprise the following steps:
Step one, take appropriate methylcellulose and be dissolved in warm water, uniform stirring 2-3min, spread out, be subsequently adding
Chopped asphalt base carbon fiber, continues uniform stirring 3-4min；
Step 2, the quality proportioning of constituent according to cement based matrix, prepare calcium sulphoaluminate modified portland cement；
Step 3, the above-mentioned carbon fiber stirred, methylcellulose are mixed homogeneously with calcium sulphoaluminate modified portland cement,
Pour molding of vibrating, can be prepared by the Carbon Fiber Reinforced Cement Composites for 3D printing technique.
The preparation method of the Carbon Fiber Reinforced Cement Composites for 3D printing technique the most according to claim 6,
It is characterized in that, the volume of described methylcellulose is less than the 1% of cement quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681060.3A CN106278067A (en) | 2016-08-18 | 2016-08-18 | Carbon Fiber Reinforced Cement Composites for 3D printing technique |
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| CN201610681060.3A CN106278067A (en) | 2016-08-18 | 2016-08-18 | Carbon Fiber Reinforced Cement Composites for 3D printing technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129240A (en) * | 2017-05-04 | 2017-09-05 | 西安建筑科技大学 | A kind of 3D printing preparation method of transparent cement based composites |
| CN108529984A (en) * | 2018-05-18 | 2018-09-14 | 哈尔滨工业大学 | A kind of surface modified carbon fiber reinforcement high impedance high-tensile cement base 3D printing base material and preparation method thereof |
| CN115385627A (en) * | 2022-08-20 | 2022-11-25 | 河南大学 | Composition for 3D printing mortar, 3D printing mortar and preparation method thereof |
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| CN104860605A (en) * | 2015-05-06 | 2015-08-26 | 马义和 | Concrete material applicable to 3D (Three-dimensional) printing and preparing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129240A (en) * | 2017-05-04 | 2017-09-05 | 西安建筑科技大学 | A kind of 3D printing preparation method of transparent cement based composites |
| CN108529984A (en) * | 2018-05-18 | 2018-09-14 | 哈尔滨工业大学 | A kind of surface modified carbon fiber reinforcement high impedance high-tensile cement base 3D printing base material and preparation method thereof |
| CN108529984B (en) * | 2018-05-18 | 2021-01-12 | 哈尔滨工业大学 | Surface-modified carbon fiber-reinforced high-impedance high-tensile-strength cement-based 3D printing substrate and preparation method thereof |
| CN115385627A (en) * | 2022-08-20 | 2022-11-25 | 河南大学 | Composition for 3D printing mortar, 3D printing mortar and preparation method thereof |
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Application publication date: 20170104 |