CN116283105A - Hybrid fiber geopolymer composite material and preparation method thereof - Google Patents
Hybrid fiber geopolymer composite material and preparation method thereof Download PDFInfo
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- CN116283105A CN116283105A CN202310368759.4A CN202310368759A CN116283105A CN 116283105 A CN116283105 A CN 116283105A CN 202310368759 A CN202310368759 A CN 202310368759A CN 116283105 A CN116283105 A CN 116283105A
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- 239000000835 fiber Substances 0.000 title claims abstract description 89
- 239000002131 composite material Substances 0.000 title claims abstract description 58
- 229920000876 geopolymer Polymers 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 26
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000010881 fly ash Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000010453 quartz Substances 0.000 claims abstract description 18
- 239000004567 concrete Substances 0.000 claims abstract description 7
- 239000012190 activator Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 21
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000004698 Polyethylene Substances 0.000 claims description 17
- 229920000573 polyethylene Polymers 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims 1
- 235000013312 flour Nutrition 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical group [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/005—Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates
-
- 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
- C04B7/14—Cements containing slag
-
- 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
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/243—Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a hybrid fiber geopolymer composite material and a preparation method thereof, and belongs to the technical field of concrete. The hybrid fiber geopolymer composite material is prepared from the following raw materials: fly ash 830-870kg/m 3 340-380kg/m slag 3 220-260kg/m quartz powder 3 460-510kg/m alkali-activator 3 Retarder 10-15kg/m 3 0-29kg/m of fiber 3 60-80kg/m of water 3 . The invention adopts the geopolymer, low-cost Polyformaldehyde (POM) fiber and PE fiber to prepare the high-ductility composite material in a hybrid way, has excellent working performance, and shows remarkable environment under the requirement of meeting the mechanical property required by engineeringBenefits and economic value promote sustainable development of the building industry.
Description
Technical Field
The invention relates to a hybrid fiber geopolymer composite material and a preparation method thereof, belonging to the technical field of concrete.
Background
Engineering cement-based composites (ECC), a member of the family of High Performance Fiber Reinforced Cement Composites (HPFRCC), are high toughness composites with pseudo-strain hardening and multi-crack behavior. The use of Ordinary Portland Cement (OPC) about two to three times higher than conventional concrete for ECC preparation means that the ECC preparation is subject to high energy consumption and high carbon emission and causes serious environmental load; fibers widely used in ECC are polyvinyl alcohol (PVA) fibers, polyethylene (PE) fibers, basalt fibers, etc., however, conventional oiled PVA fibers and PE fibers are costly, resulting in fibers that typically account for more than 50% of the total material cost, which is detrimental to sustainable development of the building industry.
Recently, as a novel environment-friendly cementing material, the geopolymer is used for preparing high-ductility concrete, has excellent mechanical properties and ductility, and Polyoxymethylene (POM) fibers quickly become hot spots of interest to researchers due to low cost and excellent properties, and have high mechanical strength and dispersion properties and good coordination compatibility with composite materials. However, research on the application of Polyoxymethylene (POM) fibers in a geopolymer matrix is lacking, so that how to use the geopolymer and the POM fibers for preparing a high-performance composite material and how to produce a composite material with good mechanical properties, high economic benefit and high environmental protection benefit has important significance for the development of the current building material industry.
Disclosure of Invention
The invention aims to provide a hybrid fiber geopolymer composite material and a preparation method thereof, wherein fly ash and slag are used for replacing cement, and fibers with lower cost are adopted, so that the problems that the existing concrete is easy to produce environmental pollution and has low economic benefit are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a hybrid fiber geopolymer composite material, which comprises the following components in mass per unit volume: fly ash 830-870kg/m 3 340-380kg/m slag 3 Quartz crystal220-260kg/m of powder 3 460-510kg/m alkali-activator 3 Retarder 10-15kg/m 3 0-29kg/m of fiber 3 60-80kg/m of water 3 。
Further, the fly ash and slag are cementing materials, and the quartz powder is fine aggregate.
Further, the particle size of the fly ash is 51-53um, the particle size of the slag is 14-17um, and the particle size of the quartz powder is 109-112um.
Further, the alkali excitant is formed by mixing NaOH solution and Si02 solution, the concentration of the NaOH solution is 10-13mol/L, and the mass ratio of the NaOH solution to the Si02 solution is (2-2.3) to 1.
Further, the retarder is BaCl2 and white powder.
Further, the fiber is one or more of PE fiber and POM fiber, and the volume content in the hybrid fiber composite material is 0-2%.
Further, the PE fiber has a length of 12-16mm, a diameter of 16-18um, and a density of 0.95-0.97g/cm 3 The tensile strength is more than or equal to 2700MPa, and the elastic modulus is more than or equal to 110GPa. The length of the POM fiber is 12-16mm, the diameter is 200-202um, and the density is 1.41-1.43g/cm 3 The tensile strength is more than or equal to 898MPa, and the elastic modulus is more than or equal to 8GPa.
The invention also provides a preparation method of the hybrid fiber geopolymer composite material, which comprises the following steps:
(1) And sequentially adding the fly ash, the slag and the quartz powder into a stirrer according to the proportion, and stirring for 2-5 minutes to obtain a dry-mixed material.
(2) Adding water, alkali-activator and retarder into the stirrer in the step (1) and stirring for 2-3 minutes
(3) Adding the fibers into the stirrer in the step (2) at a uniform and moderate speed, stirring while adding, and keeping the total time of adding the fibers to be no more than 1 minute;
(4) And (3) filling the composite material into a mould, vibrating and forming, and curing in water for 28 days to obtain the hybrid fiber polymer composite material.
Compared with the prior art, the invention has the following beneficial effects:
(1) The hybrid fiber geopolymer composite material disclosed by the invention has good flowing property and excellent working performance, and is easy to construct rapidly in a large scale.
(2) The invention uses the industrial wastes such as the fly ash, the slag and the like to replace cement as the cementing material to produce the high-performance composite material, effectively solves the problem of resource shortage, responds to the call of the national green building and further promotes the sustainable development of the building industry.
(3) The invention adopts more economic fiber, the raw materials are easy to obtain, the mechanical property required by engineering is satisfied, and the invention has good economic benefit.
Detailed Description
In order to more clearly describe the technical solution of the present invention, the present invention will be further described in detail by means of the following specific examples, it being understood that the specific examples described herein are only for the purpose of illustrating the present invention and are not intended to limit the present invention, and various modifications may be made within the scope of the present invention as defined in the appended claims.
Example 1:
this example provides a hybrid fibrous geopolymer composite prepared from the following ingredients, by mass per volume, as shown in table 1:
table 1: blend ratio design (kg/m) of hybrid fiber geopolymer composites 3 )
| Fly ash | Slag (slag) | Quartz powder | Alkali-activated agent | Retarder agent | PE fiber | POM fiber | Water and its preparation method |
| 850 | 364 | 243 | 486 | 12 | 19.4 | 0 | 73 |
The preparation method comprises the following steps:
(1) And sequentially adding the fly ash, the slag and the quartz powder into a stirrer according to the proportion, and carrying out dry stirring for 2-5 minutes to obtain a dry-mixed product.
(2) Adding water, alkali-activated agent and retarder into the stirrer in the step (1) and stirring for 2-3 minutes;
(3) Adding the fibers into the stirrer in the step (2) at a uniform and moderate speed, stirring while adding, and keeping the total time of adding the fibers to be no more than 1 minute;
(4) And (3) filling the composite material into a mould, vibrating and forming, and curing in water for 28 days to obtain the hybrid fiber polymer composite material.
Example 2:
this example provides a hybrid fibrous geopolymer composite prepared from the following ingredients, by mass per volume, as shown in table 2:
table 2: blend ratio design (kg/m) of hybrid fiber geopolymer composites 3 )
| Fly ash | Slag (slag) | Quartz powder | Alkali-activated agent | Retarder agent | PE fiber | POM fiber | Water and its preparation method |
| 850 | 364 | 243 | 486 | 12 | 14.55 | 7.15 | 73 |
The preparation method comprises the following steps:
(1) And sequentially adding the fly ash, the slag and the quartz powder into a stirrer according to the proportion, and carrying out dry stirring for 2-5 minutes to obtain a dry-mixed product.
(2) Adding water, alkali-activated agent and retarder into the stirrer in the step (1) and stirring for 2-3 minutes;
(3) Adding the fibers into the stirrer in the step (2) at a uniform and moderate speed, stirring while adding, and keeping the total time of adding the fibers to be no more than 1 minute;
(4) And (3) filling the composite material into a mould, vibrating and forming, and curing in water for 28 days to obtain the hybrid fiber polymer composite material.
Example 3:
this example provides a hybrid fibrous geopolymer composite prepared from the following ingredients, by mass per volume, as shown in table 3:
table 3: blend ratio design (kg/m) of hybrid fiber geopolymer composites 3 )
| Fly ash | Slag (slag) | Quartz powder | Alkali-activated agent | Retarder agent | PE fiber | POM fiber | Water and its preparation method |
| 850 | 364 | 243 | 486 | 12 | 9.7 | 14.3 | 73 |
The preparation method comprises the following steps:
(1) And sequentially adding the fly ash, the slag and the quartz powder into a stirrer according to the proportion, and carrying out dry stirring for 2-5 minutes to obtain a dry-mixed product.
(2) Adding water, alkali-activated agent and retarder into the stirrer in the step (1) and stirring for 2-3 minutes;
(3) Adding the fibers into the stirrer in the step (2) at a uniform and moderate speed, stirring while adding, and keeping the total time of adding the fibers to be no more than 1 minute;
(4) And (3) filling the composite material into a mould, vibrating and forming, and curing in water for 28 days to obtain the hybrid fiber polymer composite material.
Example 4:
this example provides a hybrid fibrous geopolymer composite prepared from the following ingredients, by mass per volume, as shown in table 4:
table 4: blend ratio design (kg/m) of hybrid fiber geopolymer composites 3 )
| Fly ash | Slag (slag) | Quartz powder | Alkali-activated agent | Retarder agent | PE fiber | POM fiber | Water and its preparation method |
| 850 | 364 | 243 | 486 | 12 | 4.85 | 21.45 | 73 |
The preparation method comprises the following steps:
(1) And sequentially adding the fly ash, the slag and the quartz powder into a stirrer according to the proportion, and carrying out dry stirring for 2-5 minutes to obtain a dry-mixed product.
(2) Adding water, alkali-activated agent and retarder into the stirrer in the step (1) and stirring for 2-3 minutes;
(3) Adding the fibers into the stirrer in the step (2) at a uniform and moderate speed, stirring while adding, and keeping the total time of adding the fibers to be no more than 1 minute;
(4) And (3) filling the composite material into a mould, vibrating and forming, and curing in water for 28 days to obtain the hybrid fiber polymer composite material.
Example 5:
this example provides a hybrid fibrous geopolymer composite prepared from the following ingredients, by mass per volume, as shown in table 5:
table 5: blend ratio design (kg/m) of hybrid fiber geopolymer composites 3 )
| Fly ash | Slag (slag) | Quartz powder | Alkali-activated agent | Retarder agent | PE fiber | POM fiber | Water and its preparation method |
| 850 | 364 | 243 | 486 | 12 | 0 | 28.6 | 73 |
The preparation method comprises the following steps:
(1) And sequentially adding the fly ash, the slag and the quartz powder into a stirrer according to the proportion, and carrying out dry stirring for 2-5 minutes to obtain a dry-mixed product.
(2) Adding water, alkali-activated agent and retarder into the stirrer in the step (1) and stirring for 2-3 minutes;
(3) Adding the fibers into the stirrer in the step (2) at a uniform and moderate speed, stirring while adding, and keeping the total time of adding the fibers to be no more than 1 minute;
(4) And (3) filling the composite material into a mould, vibrating and forming, and curing in water for 28 days to obtain the hybrid fiber polymer composite material.
Performance test: the hybrid fiber geopolymer composites prepared in examples 1-5 were tested for flowability of concrete according to GB/T2419, and the 28d tensile strength and 28d compressive strength of the composites were tested according to the high-ductility fiber reinforced cement-based composite mechanical property test method. The test results are shown in Table 6.
Table 6: hybrid fiber geopolymer composite performance test results
Note that: the PE fiber/POM fiber mixing ratio is the volume mixing ratio of the PE fiber and the POM fiber
Comparing the performance of examples 1-5, it can be seen from the table above: with the increase of POM fibers, the fluidity of the hybrid fiber polymer composite material is increased, the good fluidity is more suitable for the molding and the actual use of the composite material, and the construction difficulty is obviously reduced. And the obtained composite material has the maximum compressive strength and the tensile strength of 5.62MPa when the mixing volume ratio of the PE fiber to the POM fiber is 1:1, and has excellent ductility. The reason is that PE fibers and POM fibers with different sizes have complementary advantages, and under the condition of meeting the mechanical property requirement required by engineering, the PE fibers can be replaced by more economical POM fibers, so that the method has a great pushing effect on the sustainable development of the building industry.
The foregoing description of the invention has been presented for purposes of illustration and description, and is not intended to be limiting. Modifications may also be made by those skilled in the art to which the invention pertains, in light of the teachings of the present invention.
Claims (8)
1. A hybrid fibrous geopolymer composite and a method for preparing the same, characterized in that the concrete comprises the following components in mass per unit volume: fly ash 830-870kg/m 3 340-380kg/m slag 3 220-2 of quartz powder60kg/m 3 460-510kg/m alkali-activator 3 Retarder 10-15kg/m 3 0-29kg/m of fiber 3 60-80kg/m of water 3 。
2. The hybrid fibrous geopolymer composite of claim 1, wherein the fly ash and slag are cementitious materials and the silica flour is fine aggregate.
3. The hybrid fibrous geopolymer composite of claim 2, wherein the fly ash has a particle size of 51-53um, the slag has a particle size of 14-17um, and the quartz powder has a particle size of 109-112um.
4. The hybrid fibrous geopolymer composite of claim 3 wherein the alkali-activator is comprised of NaOH solution and SiO 2 The solution is mixed, the concentration of the NaOH solution is 10-13mol/L, and the NaOH solution and the SiO are mixed 2 The mass ratio of the solution is (2-2.3) to 1.
5. The hybrid fibrous geopolymer composite of claims 1, 2, 4 wherein the retarder is baci 2 White powder.
6. The hybrid fiber geopolymer composite according to claim 5, wherein the fiber is one or more of polyethylene fiber and polyoxymethylene fiber, and the volume content in the hybrid fiber composite is 0-2%.
7. The hybrid fibrous geopolymer composite of claim 6 wherein the polyethylene fibers have a length of 12-16mm, a diameter of 16-18um and a density of 0.95-0.97g/cm 3 The tensile strength is more than or equal to 2700MPa, and the elastic modulus is more than or equal to 110GPa. The length of the polyformaldehyde fiber is 12-16mm, the diameter is 200-202um, and the density is 1.41-1.43g/cm 3 The tensile strength is more than or equal to 898MPa, and the elastic modulus is more than or equal to 8GPa.
8. The method of preparing a hybrid fibrous geopolymer composite according to claim 1, comprising the steps of:
(1) And sequentially adding the fly ash, the slag and the quartz powder into a stirrer according to the proportion, and carrying out dry stirring for 2-5 minutes to obtain a dry-mixed product.
(2) Adding water, alkali-activated agent and retarder into the stirrer in the step (1) and stirring for 2-3 minutes;
(3) Adding the fibers into the stirrer in the step (2) at a uniform and moderate speed, stirring while adding, and keeping the total time of adding the fibers to be no more than 1 minute;
(4) And (3) filling the composite material into a mould, vibrating and forming, and curing in water for 28 days to obtain the hybrid fiber polymer composite material.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116903312A (en) * | 2023-08-07 | 2023-10-20 | 广东工业大学 | Low-carbon ultra-high performance engineering geopolymer composite material and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116903312A (en) * | 2023-08-07 | 2023-10-20 | 广东工业大学 | Low-carbon ultra-high performance engineering geopolymer composite material and preparation method and application thereof |
| CN116903312B (en) * | 2023-08-07 | 2024-01-26 | 广东工业大学 | Low-carbon ultra-high performance engineering geopolymer composite material and preparation method and application thereof |
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