CN108751815A - A kind of fiber reinforced cement-based composite material and preparation method thereof - Google Patents
A kind of fiber reinforced cement-based composite material and preparation method thereof Download PDFInfo
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- CN108751815A CN108751815A CN201810720118.XA CN201810720118A CN108751815A CN 108751815 A CN108751815 A CN 108751815A CN 201810720118 A CN201810720118 A CN 201810720118A CN 108751815 A CN108751815 A CN 108751815A
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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
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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
- 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
A kind of fiber reinforced cement-based composite material, by weight, including following raw material：50~70 parts of cement, 10~20 parts of carbon fiber reinforcement, 2~4 parts of swelling agent, 20~30 parts of steel fibre, 10~30 parts of water, 1~3 part of water-reducing agent, 10~20 parts of ceramic powder, 8~16 parts of silica flour；Using fully dispersed ultra-fine silicon ash particle, it is filled in the gap of cement granules accumulation system, realize particle packing densification, high solidity particle packing system is formed by high efficiency water reducing agent again, so that fiber reinforced cement-based composite material has higher elasticity modulus, the very-high performances such as high tensile strength and compressive strength, stronger self-healing capability and hypotonicity, the addition of carbon fiber reinforcement and steel fibre, so that the structural strength higher of the finished product of fiber reinforced cement-based composite material, to keep the raising of the bearing capacity of fiber reinforced cement-based composite material reinforced steel concrete structure more obvious.
Description
Technical field
The present invention relates to building material technical fields, and in particular to a kind of fiber reinforced cement-based composite material and its preparation
Method.
Background technology
Construction material is the general designation of the material used in civil engineering and architectural engineering, can be divided into structural material, decoration material
Material and certain proprietary materials.Structural material include timber, bamboo wood, stone material, cement, concrete, metal, brick and tile, ceramics, glass,
Engineering plastics, composite material etc., ornament materials include various coating, paint, coating, veneer, assorted ceramic tile, have special-effect
Glass etc.；Proprietary material refers to for waterproof, moisture-proof, anti-corrosion, fire prevention, fire-retardant, sound insulation, heat-insulated, heat preservation, sealing etc..
However traditional fiber reinforced cement-based composite material because the ratio of mud is larger etc. factors influence due to there is elasticity modulus
In place of the deficiencies of relatively low, cause the bearing power increase of fiber reinforced cement-based composite material reinforced steel concrete structure and unknown
It is aobvious.
Invention content
The purpose of the present invention is to provide a kind of fiber reinforced cement-based composite materials and preparation method thereof, above-mentioned to solve
The problem of being proposed in background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of fiber reinforced cement-based composite material, by weight, including following raw material：50~70 parts of cement, carbon fiber
10~20 parts of reinforcement, 2~4 parts of swelling agent, 20~30 parts of steel fibre, 10~30 parts of water, 1~3 part of water-reducing agent, ceramic powder 10~
20 parts, 8~16 parts of silica flour.
It is as further technical solution of the invention：By weight, including following raw material：55~65 parts of cement, carbon fiber
Tie up 13~17 parts of reinforcement, 2~4 parts of swelling agent, 23~27 parts of steel fibre, 15~25 parts of water, 1~3 part of water-reducing agent, ceramic powder 13
~17 parts, 10~14 parts of silica flour.
It is as further technical solution of the invention：By weight, including following raw material：60 parts of cement, carbon fiber
15 parts of reinforcement, 3 parts of swelling agent, 25 parts of steel fibre, 20 parts of water, 2 parts of water-reducing agent, 15 parts of ceramic powder, 12 parts of silica flour.
It is as further technical solution of the invention：The cement is low-heat cement, and the swelling agent is sulphur aluminic acid
Salt cement expansive material, the water-reducing agent are Polycarboxylic Superplasticizer or naphthalene series high-efficiency water-reducing agent.
It is as further technical solution of the invention：The mass percent of amorphous silica in the silica flour
Content is more than or equal to 90%.
A kind of preparation method of fiber reinforced cement-based composite material, this approach includes the following steps：
(1) cement, ceramic powder and silica flour being put into blender 10~20min of stirring, the rotating speed of blender is 80~
120r/min obtains the first mixture；
(2) swelling agent and water-reducing agent is added in the first mixture prepared into step (1), is then stirred by blender
10~20min obtains the second mixture；
(3) carbon fiber reinforcement, steel fibre and water is added in the second mixture prepared into step (2), then passes through
Blender stirs 20~40min, obtains the first semi-finished product；
(4) the first semi-finished product for using packing machine to prepare step (3) pack and are sealed up for safekeeping, to obtain fiber reinforcement water
Cement-based composite material.
The beneficial effects of the invention are as follows fully dispersed ultra-fine silicon ash particle is used, it is filled in cement granules accumulation system
In gap, particle packing densification is realized, then high solidity particle packing system is formed by high efficiency water reducing agent so that fiber increases
Strong cement-base composite material has very-high performances, the stronger self-healings such as higher elasticity modulus, high tensile strength and compressive strength
Conjunction ability and hypotonicity, in addition, the addition of carbon fiber reinforcement and steel fibre so that fibre reinforced cement base composite wood
The structural strength higher of the finished product of material, to make the bearing capacity of fiber reinforced cement-based composite material reinforced steel concrete structure
Raising it is more obvious.
Specific implementation mode
In the following, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1：
The fiber reinforced cement-based composite material of the present embodiment includes the weight of following component：50 parts of cement, carbon fiber increase
Strong 10 parts of body, 2 parts of swelling agent, 20 parts of steel fibre, 10 parts of water, 1 part of water-reducing agent, 10 parts of ceramic powder, 8 parts of silica flour.
The specific preparation method of the above fiber reinforced cement-based composite material is as follows：
(1) cement, ceramic powder and silica flour are put into blender and stir 10min, the rotating speed of blender is 80r/min, is obtained
To the first mixture；
(2) swelling agent and water-reducing agent is added in the first mixture prepared into step (1), is then stirred by blender
10min obtains the second mixture；
(3) carbon fiber reinforcement, steel fibre and water is added in the second mixture prepared into step (2), then passes through
Blender stirs 20min, obtains the first semi-finished product；
(4) the first semi-finished product for using packing machine to prepare step (3) pack and are sealed up for safekeeping, to obtain fiber reinforcement water
Cement-based composite material.
Embodiment 2：
The fiber reinforced cement-based composite material of the present embodiment includes the weight of following component：70 parts of cement, carbon fiber increase
Strong 20 parts of body, 4 parts of swelling agent, 30 parts of steel fibre, 30 parts of water, 3 parts of water-reducing agent, 20 parts of ceramic powder, 16 parts of silica flour.
The specific preparation method of the above fiber reinforced cement-based composite material is as follows：
(1) cement, ceramic powder and silica flour are put into blender and stir 20min, the rotating speed of blender is 120r/min, is obtained
To the first mixture；
(2) swelling agent and water-reducing agent is added in the first mixture prepared into step (1), is then stirred by blender
20min obtains the second mixture；
(3) carbon fiber reinforcement, steel fibre and water is added in the second mixture prepared into step (2), then passes through
Blender stirs 40min, obtains the first semi-finished product；
(4) the first semi-finished product for using packing machine to prepare step (3) pack and are sealed up for safekeeping, to obtain fiber reinforcement water
Cement-based composite material.
Embodiment 3：
The fiber reinforced cement-based composite material of the present embodiment includes the weight of following component：55 parts of cement, carbon fiber increase
Strong 13 parts of body, 2 parts of swelling agent, 23 parts of steel fibre, 15 parts of water, 1 part of water-reducing agent, 13 parts of ceramic powder, 10 parts of silica flour.
The specific preparation method of the above fiber reinforced cement-based composite material is as follows：
(1) cement, ceramic powder and silica flour are put into blender and stir 13min, the rotating speed of blender is 90r/min, is obtained
To the first mixture；
(2) swelling agent and water-reducing agent is added in the first mixture prepared into step (1), is then stirred by blender
13min obtains the second mixture；
(3) carbon fiber reinforcement, steel fibre and water is added in the second mixture prepared into step (2), then passes through
Blender stirs 25min, obtains the first semi-finished product；
(4) the first semi-finished product for using packing machine to prepare step (3) pack and are sealed up for safekeeping, to obtain fiber reinforcement water
Cement-based composite material.
Embodiment 4：
The fiber reinforced cement-based composite material of the present embodiment includes the weight of following component：65 parts of cement, carbon fiber increase
Strong 17 parts of body, 4 parts of swelling agent, 27 parts of steel fibre, 25 parts of water, 3 parts of water-reducing agent, 17 parts of ceramic powder, 14 parts of silica flour.
The specific preparation method of the above fiber reinforced cement-based composite material is as follows：
(1) cement, ceramic powder and silica flour are put into blender and stir 17min, the rotating speed of blender is 110r/min, is obtained
To the first mixture；
(2) swelling agent and water-reducing agent is added in the first mixture prepared into step (1), is then stirred by blender
17min obtains the second mixture；
(3) carbon fiber reinforcement, steel fibre and water is added in the second mixture prepared into step (2), then passes through
Blender stirs 35min, obtains the first semi-finished product；
(4) the first semi-finished product for using packing machine to prepare step (3) pack and are sealed up for safekeeping, to obtain fiber reinforcement water
Cement-based composite material.
Embodiment 5：
The fiber reinforced cement-based composite material of the present embodiment includes the weight of following component：60 parts of cement, carbon fiber increase
Strong 15 parts of body, 3 parts of swelling agent, 25 parts of steel fibre, 20 parts of water, 2 parts of water-reducing agent, 15 parts of ceramic powder, 12 parts of silica flour.
The specific preparation method of the above fiber reinforced cement-based composite material is as follows：
(1) cement, ceramic powder and silica flour are put into blender and stir 15min, the rotating speed of blender is 100r/min, is obtained
To the first mixture；
(2) swelling agent and water-reducing agent is added in the first mixture prepared into step (1), is then stirred by blender
15min obtains the second mixture；
(3) carbon fiber reinforcement, steel fibre and water is added in the second mixture prepared into step (2), then passes through
Blender stirs 30min, obtains the first semi-finished product；
(4) the first semi-finished product for using packing machine to prepare step (3) pack and are sealed up for safekeeping, to obtain fiber reinforcement water
Cement-based composite material.
Comparative example 1：
Except external without fibre reinforced, formula and preparation process are consistent with embodiment 5.
Comparative example 2：
In addition to without ceramic powder, formula and preparation process are consistent with embodiment 5.
After the fiber reinforced cement-based composite material that embodiment 1 to 5 and comparative example 1-2 is prepared, performance test knot
Fruit is as shown in the table：
| Compression strength (MPa) | Tensile strength (MPa) | Chlorion depth of invasion (mm) | |
| Embodiment 1 | 89.3 | 5.4 | 4.5 |
| Embodiment 2 | 91.2 | 7.0 | 2.2 |
| Embodiment 3 | 98.6 | 6.2 | 2.1 |
| Embodiment 4 | 99.2 | 7.4 | 1.8 |
| Embodiment 5 | 102.5 | 7.8 | 1.5 |
| Comparative example 1 | 86.2 | 5.3 | 4.6 |
| Comparative example 2 | 84.6 | 5.1 | 4.8 |
As can be seen that passing through the composition material progress to fiber reinforced cement-based composite material from the comparison of three item datas
The correlated performance of selection and proportioning, fiber reinforced cement-based composite material prepared by embodiment 5 is significantly higher than embodiment 1-4 and right
Ratio 1-2.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of fiber reinforced cement-based composite material, which is characterized in that by weight, including following raw material：Cement 50~70
Part, 10~20 parts of carbon fiber reinforcement, 2~4 parts of swelling agent, 20~30 parts of steel fibre, 10~30 parts of water, 1~3 part of water-reducing agent,
10~20 parts of ceramic powder, 8~16 parts of silica flour.
2. a kind of fiber reinforced cement-based composite material according to claim 1, which is characterized in that by weight, including
Following raw material：55~65 parts of cement, 13~17 parts of carbon fiber reinforcement, 2~4 parts of swelling agent, 23~27 parts of steel fibre, water 15~
25 parts, 1~3 part of water-reducing agent, 13~17 parts of ceramic powder, 10~14 parts of silica flour.
3. a kind of fiber reinforced cement-based composite material according to claim 1, which is characterized in that by weight, including
Following raw material：60 parts of cement, 15 parts of carbon fiber reinforcement, 3 parts of swelling agent, 25 parts of steel fibre, 20 parts of water, 2 parts of water-reducing agent, ceramics
15 parts of powder, 12 parts of silica flour.
4. a kind of fiber reinforced cement-based composite material according to claim 1, which is characterized in that the cement is low-heat
Cement, the swelling agent are aluminium sulfate class cement expansive material, and the water-reducing agent is Polycarboxylic Superplasticizer or naphthalene system
High efficiency water reducing agent.
5. a kind of fiber reinforced cement-based composite material according to claim 1, which is characterized in that the nothing in the silica flour
The mass percentage content of sizing silica is more than or equal to 90%.
6. a kind of preparation method of fiber reinforced cement-based composite material according to claim 1, which is characterized in that the party
Method includes the following steps：
Cement, ceramic powder and silica flour are put into 10~20min of stirring in blender, the rotating speed of blender is 80~120r/min,
Obtain the first mixture；
To step（1）Swelling agent and water-reducing agent are added in first mixture of middle preparation, then by blender stirring 10~
20min obtains the second mixture；
To step（2）Carbon fiber reinforcement, steel fibre and water are added in second mixture of middle preparation, is then stirred by blender
20~40min is mixed, the first semi-finished product are obtained；
Using packing machine to step（3）The first semi-finished product prepared carry out pack and seal up for safekeeping, multiple to obtain fibre reinforced cement base
Condensation material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810720118.XA CN108751815A (en) | 2018-07-03 | 2018-07-03 | A kind of fiber reinforced cement-based composite material and preparation method thereof |
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| CN201810720118.XA CN108751815A (en) | 2018-07-03 | 2018-07-03 | A kind of fiber reinforced cement-based composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115073093A (en) * | 2022-06-24 | 2022-09-20 | 武汉工程大学 | Low-shrinkage high-strength self-compacting recycled concrete and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817287A (en) * | 2015-04-16 | 2015-08-05 | 华东交通大学 | high-performance concrete admixture in use of waste ceramic powder and implementing method thereof |
| CN105198339A (en) * | 2015-10-28 | 2015-12-30 | 上海罗洋新材料科技有限公司 | Ultrahigh-performance cement-based composite material |
-
2018
- 2018-07-03 CN CN201810720118.XA patent/CN108751815A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817287A (en) * | 2015-04-16 | 2015-08-05 | 华东交通大学 | high-performance concrete admixture in use of waste ceramic powder and implementing method thereof |
| CN105198339A (en) * | 2015-10-28 | 2015-12-30 | 上海罗洋新材料科技有限公司 | Ultrahigh-performance cement-based composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115073093A (en) * | 2022-06-24 | 2022-09-20 | 武汉工程大学 | Low-shrinkage high-strength self-compacting recycled concrete and preparation method thereof |
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