CN108455910A - A kind of high-tenacity fiber enhancing construction material and preparation method thereof - Google Patents
A kind of high-tenacity fiber enhancing construction material and preparation method thereof Download PDFInfo
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- CN108455910A CN108455910A CN201810386639.6A CN201810386639A CN108455910A CN 108455910 A CN108455910 A CN 108455910A CN 201810386639 A CN201810386639 A CN 201810386639A CN 108455910 A CN108455910 A CN 108455910A
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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
-
- 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
- C04B2111/2038—Resistance against physical degradation
-
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of high-tenacity fibers to enhance construction material and preparation method thereof, includes the raw material composition of following parts by weight：12 18 parts of 10 20 parts of polymer emulsion, 30 50 parts of cement, 15 25 parts of flyash, 6 12 parts of bastard coal mountain flour, 4 10 parts of composite reinforcing fiber, 15 parts of dispersant, 25 parts of water-reducing agent, 0.5 3.5 parts of thickener and water.High-tenacity fiber proposed by the present invention enhances construction material, the toughness and blocking effect of material can be improved, the cement, flyash, composite reinforcing fiber are uniformly distributed by dispersant, and change mechanical property, the ability for significantly improving the resistance to deformation of material, making construction material that cracking and the probability of fracture occur reduces.
Description
Technical field
The present invention relates to building material technical fields, and in particular to a kind of high-tenacity fiber enhancing construction material and its preparation
Method.
Background technology
Construction material is the basis of architectural engineering, and concrete is most widely used construction material, main component packet
Cement, admixture and aggregate are included, adds water stirring after-hardening to form, has many advantages, such as simple for process, fire protecting performance.But concrete has
Fracture width is difficult to control after having the shortcomings that low tensile strength, poor toughness and cracking, therefore, in traditional reinforced concrete structure
In, frequent occurrence due to crack leads to steel bar corrosion and occurs engineering accident.Concrete structure crack directly affects structure
Durability and engineering service life, eventually lead to concrete structure and prematurely deteriorate or even completely lose using function.For
These disadvantages of concrete, carbon fiber reinforced concrete and steel fiber reinforced concrete etc. are overcome to come into being, the fibers content of this kind of concrete
Usually less than 2%, mitigation concrete bracing is played to a certain extent although doing so, and improves the works such as material bending resistance toughness
With, but strain softening destruction still occurs under uniaxial direct tensile load action, crack immediately enters the localized spreading stage after cracking.
Based on this, it is necessary to a kind of high-tenacity fiber enhancing construction material and preparation method thereof is provided, to solve existing skill
The problem of art.
Invention content
In view of the above-mentioned analysis to the prior art, the present invention provide it is a kind of there is high tenacity, can reduce and crack and be broken
High-tenacity fiber enhances construction material.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of high-tenacity fiber enhancing construction material includes the raw material composition of following parts by weight：10-20 parts of polymer emulsion,
30-50 parts of cement, 15-25 parts of flyash, 6-12 parts of bastard coal mountain flour, 4-10 parts of composite reinforcing fiber, 1-5 parts of dispersant, diminishing
12-18 parts of 2-5 parts of agent, 0.5-3.5 parts of thickener and water.
Preferably, including the raw material of following parts by weight forms：15 parts of polymer emulsion, 40 parts of cement, 20 parts of flyash,
15 parts of 9 parts of bastard coal mountain flour, 7 parts of composite reinforcing fiber, 3 parts of dispersant, 3.5 parts of water-reducing agent, 2 parts of thickener and water.
Preferably, the polymer emulsion is styrene-acrylic emulsion, styrene-butadiene emulsion or pure-acrylic emulsion.
Preferably, it is 2-4 that the composite reinforcing fiber, which is weight ratio,:1 vinal and the mixture of carbon fiber.
Preferably, the flyash is I grades of flyash.
Preferably, the dispersant is neopelex.
Preferably, the water-reducing agent is the polycarboxylate water-reducer that water-reducing rate is 40%.
Preferably, the thickener is cellulose ether.
The present invention also provides the preparation methods that above-mentioned high-tenacity fiber enhances construction material, include the following steps：
（1）Each component is weighed by raw material proportioning, includes polymer emulsion, water-reducing agent, thickener, dispersant and water by liquid component
It pours into agitated kettle, stirs evenly；
（2）Include that cement, flyash, bastard coal mountain flour, composite reinforcing fiber are mixed evenly by solid component；
（3）By step（1）Step is added in gained liquid mixture（2）In be mixed evenly, mixing speed 140-180rpm is stirred
Time 10-20min is mixed, mixed mortar is obtained；
（4）By step（3）Gained mixed mortar is cast in mold, form removal for 24 hours after molding, and it is 25 DEG C, humidity 90% to be put into temperature
Above fog room carries out standard curing 28-36d enhances construction material to get high-tenacity fiber.
Compared with prior art, the present invention having following advantageous effect：
（1）High-tenacity fiber proposed by the present invention enhances construction material, and the toughness and blocking effect of material can be improved, described
Cement, flyash, composite reinforcing fiber are uniformly distributed by dispersant, and change mechanical property, significantly improve material
Resistance to deformation ability, the construction material occur cracking and fracture probability reduce.
（2）The composite reinforcing fiber that the present invention chooses has the advantage of high elastic modulus and high intensity, and cement base can be improved
Crack resistance, impermeability and the frost resistance of material reduce physical mechanics spy that is dry-shrinkage deformed, while can obviously improve the construction material
Property, wherein the polymer emulsion of addition has good affine performance with cement, can effectively control mortar or concrete because moulding
Crackle caused by the factors such as contraction and temperature change, prevents and inhibits the formation and development in crack, and it is compound that cement base can be improved
Material bend resistance intensity, impact strength and breaking resistance.
（3）The preparation method of the high-tenacity fiber enhancing construction material of the present invention is simple, easy to implement, can be widely used for work
The wall of industry and civil buildings, roofing, terrace and road, bridge, tunnel, slope reinforcement.
Specific implementation mode
Form by the following examples is described in further detail the above of the present invention again, but should not be by this
The range for being interpreted as the above-mentioned theme of the present invention is only limitted to following embodiment, all based on the technology realized belonging to the above of the present invention
It all belongs to the scope of the present invention.
Embodiment 1
A kind of high-tenacity fiber enhancing construction material includes the raw material composition of following parts by weight：10 parts of polymer emulsion, cement
30 parts, 15 parts of flyash, 6 parts of bastard coal mountain flour, 4 parts of composite reinforcing fiber, 1 part of dispersant, 2 parts of water-reducing agent, 0.5 part of thickener and
12 parts of water.
Wherein, the polymer emulsion is styrene-acrylic emulsion.
Wherein, it is 2 that the composite reinforcing fiber, which is weight ratio,:1 vinal and the mixture of carbon fiber.
Wherein, the flyash is I grades of flyash.
Wherein, the dispersant is neopelex.
Wherein, the water-reducing agent is the polycarboxylate water-reducer that water-reducing rate is 40%.
Wherein, the thickener is cellulose ether.
The present invention also provides the preparation methods that above-mentioned high-tenacity fiber enhances construction material, include the following steps：
（1）Each component is weighed by raw material proportioning, includes polymer emulsion, water-reducing agent, thickener, dispersant and water by liquid component
It pours into agitated kettle, stirs evenly；
（2）Include that cement, flyash, bastard coal mountain flour, composite reinforcing fiber are mixed evenly by solid component；
（3）By step（1）Step is added in gained liquid mixture（2）In be mixed evenly, mixing speed 140rpm, when stirring
Between 10min, obtain mixed mortar；
（4）By step（3）Gained mixed mortar is cast in mold, form removal for 24 hours after molding, and it is 25 DEG C, humidity 90% to be put into temperature
Above fog room carries out standard curing 28d enhances construction material to get high-tenacity fiber.
Embodiment 2
A kind of high-tenacity fiber enhancing construction material includes the raw material composition of following parts by weight：20 parts of polymer emulsion, cement
50 parts, 25 parts of flyash, 12 parts of bastard coal mountain flour, 10 parts of composite reinforcing fiber, 5 parts of dispersant, 5 parts of water-reducing agent, 3.5 parts of thickener
With 18 parts of water.
Wherein, the polymer emulsion is styrene-butadiene emulsion.
Wherein, it is 4 that the composite reinforcing fiber, which is weight ratio,:1 vinal and the mixture of carbon fiber.
Wherein, the flyash is I grades of flyash.
Wherein, the dispersant is neopelex.
Wherein, the water-reducing agent is the polycarboxylate water-reducer that water-reducing rate is 40%.
Wherein, the thickener is cellulose ether.
The present invention also provides the preparation methods that above-mentioned high-tenacity fiber enhances construction material, include the following steps：
（1）Each component is weighed by raw material proportioning, includes polymer emulsion, water-reducing agent, thickener, dispersant and water by liquid component
It pours into agitated kettle, stirs evenly；
（2）Include that cement, flyash, bastard coal mountain flour, composite reinforcing fiber are mixed evenly by solid component；
（3）By step（1）Step is added in gained liquid mixture（2）In be mixed evenly, mixing speed 180rpm, when stirring
Between 20min, obtain mixed mortar；
（4）By step（3）Gained mixed mortar is cast in mold, form removal for 24 hours after molding, and it is 25 DEG C, humidity 90% to be put into temperature
Above fog room carries out standard curing 36d enhances construction material to get high-tenacity fiber.
Embodiment 3
A kind of high-tenacity fiber enhancing construction material includes the raw material composition of following parts by weight：15 parts of polymer emulsion, cement
40 parts, 20 parts of flyash, 9 parts of bastard coal mountain flour, 7 parts of composite reinforcing fiber, 3 parts of dispersant, 3.5 parts of water-reducing agent, 2 parts of thickener and
15 parts of water.
Wherein, the polymer emulsion is pure-acrylic emulsion.
Wherein, it is 3 that the composite reinforcing fiber, which is weight ratio,:1 vinal and the mixture of carbon fiber.
Wherein, the flyash is I grades of flyash.
Wherein, the dispersant is neopelex.
Wherein, the water-reducing agent is the polycarboxylate water-reducer that water-reducing rate is 40%.
Wherein, the thickener is cellulose ether.
The present invention also provides the preparation methods that above-mentioned high-tenacity fiber enhances construction material, include the following steps：
（1）Each component is weighed by raw material proportioning, includes polymer emulsion, water-reducing agent, thickener, dispersant and water by liquid component
It pours into agitated kettle, stirs evenly；
（2）Include that cement, flyash, bastard coal mountain flour, composite reinforcing fiber are mixed evenly by solid component；
（3）By step（1）Step is added in gained liquid mixture（2）In be mixed evenly, mixing speed 160rpm, when stirring
Between 15min, obtain mixed mortar；
（4）By step（3）Gained mixed mortar is cast in mold, form removal for 24 hours after molding, and it is 25 DEG C, humidity 90% to be put into temperature
Above fog room carries out standard curing 28-36d enhances construction material to get high-tenacity fiber.
Embodiment 4
A kind of high-tenacity fiber enhancing construction material includes the raw material composition of following parts by weight：18 parts of polymer emulsion, cement
45 parts, 17 parts of flyash, 8 parts of bastard coal mountain flour, 6 parts of composite reinforcing fiber, 2 parts of dispersant, 4 parts of water-reducing agent, 1 part of thickener and water
14 parts.
Wherein, the polymer emulsion is styrene-acrylic emulsion.
Wherein, it is 2.5 that the composite reinforcing fiber, which is weight ratio,:1 vinal and the mixture of carbon fiber.
Wherein, the flyash is I grades of flyash.
Wherein, the dispersant is neopelex.
Wherein, the water-reducing agent is the polycarboxylate water-reducer that water-reducing rate is 40%.
Wherein, the thickener is cellulose ether.
The present invention also provides the preparation methods that above-mentioned high-tenacity fiber enhances construction material, include the following steps：
（1）Each component is weighed by raw material proportioning, includes polymer emulsion, water-reducing agent, thickener, dispersant and water by liquid component
It pours into agitated kettle, stirs evenly；
（2）Include that cement, flyash, bastard coal mountain flour, composite reinforcing fiber are mixed evenly by solid component；
（3）By step（1）Step is added in gained liquid mixture（2）In be mixed evenly, mixing speed 150rpm, when stirring
Between 18min, obtain mixed mortar；
（4）By step（3）Gained mixed mortar is cast in mold, form removal for 24 hours after molding, and it is 25 DEG C, humidity 90% to be put into temperature
Above fog room carries out standard curing 30d enhances construction material to get high-tenacity fiber.
Embodiment 5
A kind of high-tenacity fiber enhancing construction material includes the raw material composition of following parts by weight：13 parts of polymer emulsion, cement
35 parts, 22 parts of flyash, 10 parts of bastard coal mountain flour, 6 parts of composite reinforcing fiber, 2 parts of dispersant, 3 parts of water-reducing agent, 2 parts of thickener and
16 parts of water.
Wherein, the polymer emulsion is styrene-butadiene emulsion.
Wherein, it is 3.5 that the composite reinforcing fiber, which is weight ratio,:1 vinal and the mixture of carbon fiber.
Wherein, the flyash is I grades of flyash.
Wherein, the dispersant is neopelex.
Wherein, the water-reducing agent is the polycarboxylate water-reducer that water-reducing rate is 40%.
Wherein, the thickener is cellulose ether.
The present invention also provides the preparation methods that above-mentioned high-tenacity fiber enhances construction material, include the following steps：
（1）Each component is weighed by raw material proportioning, includes polymer emulsion, water-reducing agent, thickener, dispersant and water by liquid component
It pours into agitated kettle, stirs evenly；
（2）Include that cement, flyash, bastard coal mountain flour, composite reinforcing fiber are mixed evenly by solid component；
（3）By step（1）Step is added in gained liquid mixture（2）In be mixed evenly, mixing speed 170rpm, when stirring
Between 13min, obtain mixed mortar；
（4）By step（3）Gained mixed mortar is cast in mold, form removal for 24 hours after molding, and it is 25 DEG C, humidity 90% to be put into temperature
Above fog room carries out standard curing 32d enhances construction material to get high-tenacity fiber.
Comparative example 1
In addition to polymer emulsion, material content and step are consistent with embodiment 3.
Comparative example 2
In addition to composite reinforcing fiber, material content and step are consistent with embodiment 3.
Experimental example 1
High-tenacity fiber enhancing construction material made from embodiment 1-5 is built with high-tenacity fiber enhancing made from comparative example 1-2
Build the mechanical property of material, stability is tested, the results are shown in Table 1.
Table 1
| Sample | Compression strength（MPa） | Flexural strength（MPa） | It is impervious（MPa） | 60d shrinking percentages（10-6） |
| Embodiment 1 | 65.8 | 32.2 | P18 | 185 |
| Embodiment 2 | 67.5 | 32.4 | P18 | 178 |
| Embodiment 3 | 69.8 | 32.5 | P18 | 164 |
| Embodiment 4 | 66.7 | 32.3 | P18 | 178 |
| Embodiment 5 | 66.3 | 32.6 | P18 | 169 |
| Comparative example 1 | 55.2 | 27.8 | P16 | 458 |
| Comparative example 2 | 52.2 | 22.3 | P16 | 675 |
1 explanation of table：High-tenacity fiber enhancing construction material prepared by the present invention has good mechanical property, stability, real
Border application value is big.
In conclusion high-tenacity fiber proposed by the present invention enhances construction material, toughness and the resistance of material can be improved
Effect is split, the cement, flyash, composite reinforcing fiber are uniformly distributed by dispersant, and change mechanical property, significantly
The ability of the resistance to deformation of material is improved, which, which occurs cracking and the probability of fracture, reduces.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (9)
1. a kind of high-tenacity fiber enhances construction material, which is characterized in that the raw material composition including following parts by weight：Polymer
10-20 parts of lotion, 30-50 parts of cement, 15-25 parts of flyash, 6-12 parts of bastard coal mountain flour, 4-10 parts of composite reinforcing fiber, dispersion
12-18 parts of 1-5 parts of agent, 2-5 parts of water-reducing agent, 0.5-3.5 parts of thickener and water.
2. high-tenacity fiber according to claim 1 enhances construction material, which is characterized in that including following parts by weight
Raw material forms：15 parts of polymer emulsion, 40 parts of cement, 20 parts of flyash, 9 parts of bastard coal mountain flour, 7 parts of composite reinforcing fiber, dispersion
15 parts of 3 parts of agent, 3.5 parts of water-reducing agent, 2 parts of thickener and water.
3. high-tenacity fiber according to claim 1 enhances construction material, which is characterized in that the polymer emulsion is benzene
Acrylic emulsion, styrene-butadiene emulsion or pure-acrylic emulsion.
4. high-tenacity fiber according to claim 1 enhances construction material, which is characterized in that the composite reinforcing fiber is
Weight ratio is 2-4:1 vinal and the mixture of carbon fiber.
5. high-tenacity fiber according to claim 1 enhances construction material, which is characterized in that the flyash is I grades of powder
Coal ash.
6. high-tenacity fiber according to claim 1 enhances construction material, which is characterized in that the dispersant is dodecane
Base benzene sulfonic acid sodium salt.
7. high-tenacity fiber according to claim 1 enhances construction material, which is characterized in that the water-reducing agent is water-reducing rate
For 40% polycarboxylate water-reducer.
8. high-tenacity fiber according to claim 1 enhances construction material, which is characterized in that the thickener is cellulose
Ether.
9. a kind of preparation method enhancing construction material according to claim 1-8 any one of them high-tenacity fibers, feature
It is, includes the following steps：
（1）Each component is weighed by raw material proportioning, includes polymer emulsion, water-reducing agent, thickener, dispersant and water by liquid component
It pours into agitated kettle, stirs evenly；
（2）Include that cement, flyash, bastard coal mountain flour, composite reinforcing fiber are mixed evenly by solid component；
（3）By step（1）Step is added in gained liquid mixture（2）In be mixed evenly, mixing speed 140-180rpm is stirred
Time 10-20min is mixed, mixed mortar is obtained；
（4）By step（3）Gained mixed mortar is cast in mold, form removal for 24 hours after molding, and it is 25 DEG C, humidity 90% to be put into temperature
Above fog room carries out standard curing 28-36d enhances construction material to get high-tenacity fiber.
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| CN201810386639.6A CN108455910A (en) | 2018-04-26 | 2018-04-26 | A kind of high-tenacity fiber enhancing construction material and preparation method thereof |
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| CN201810386639.6A CN108455910A (en) | 2018-04-26 | 2018-04-26 | A kind of high-tenacity fiber enhancing construction material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108623230A (en) * | 2018-07-16 | 2018-10-09 | 桐城市景瑞建筑装饰工程有限公司 | A kind of cement-based microporous building material |
| CN113816703A (en) * | 2021-08-17 | 2021-12-21 | 山东大学 | High-solid-waste-content fiber polymer repair material and preparation method thereof |
| CN114276095A (en) * | 2021-12-15 | 2022-04-05 | 重庆重通成飞新材料有限公司 | Formula of high-hardness pouring type gypsum template |
| CN116102323A (en) * | 2023-04-12 | 2023-05-12 | 广东龙湖科技股份有限公司 | High-ductility concrete based on modified waste PCB coarse particles and preparation method thereof |
-
2018
- 2018-04-26 CN CN201810386639.6A patent/CN108455910A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108623230A (en) * | 2018-07-16 | 2018-10-09 | 桐城市景瑞建筑装饰工程有限公司 | A kind of cement-based microporous building material |
| CN113816703A (en) * | 2021-08-17 | 2021-12-21 | 山东大学 | High-solid-waste-content fiber polymer repair material and preparation method thereof |
| CN114276095A (en) * | 2021-12-15 | 2022-04-05 | 重庆重通成飞新材料有限公司 | Formula of high-hardness pouring type gypsum template |
| CN116102323A (en) * | 2023-04-12 | 2023-05-12 | 广东龙湖科技股份有限公司 | High-ductility concrete based on modified waste PCB coarse particles and preparation method thereof |
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