CN109369130A - A kind of magnesiohulsite fiber reinforced fly ash composite material - Google Patents
A kind of magnesiohulsite fiber reinforced fly ash composite material Download PDFInfo
- Publication number
- CN109369130A CN109369130A CN201811373375.7A CN201811373375A CN109369130A CN 109369130 A CN109369130 A CN 109369130A CN 201811373375 A CN201811373375 A CN 201811373375A CN 109369130 A CN109369130 A CN 109369130A
- Authority
- CN
- China
- Prior art keywords
- magnesiohulsite
- parts
- water
- fly ash
- composite material
- Prior art date
- 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.)
- Pending
Links
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
- C04B28/14—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 calcium sulfate 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
- 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
Landscapes
- 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 present invention relates to a kind of magnesiohulsite fiber reinforced fly ash composite materials, the invention discloses a kind of magnesiohulsite fiber reinforced fly ash composite material and its technologies of preparing, it is formed and parts by weight are as follows: 0.2~8 part of magnesiohulsite fiber, 20~55 parts of flyash, 25~35 parts of sand, 11~22 parts of cement, 11~22 parts of white lime, 5~15 parts of gypsum, 0.1~2 part of water-reducing agent.Magnesiohulsite fiber, flyash, sand, cement, white lime, gypsum and water-reducing agent is dry-mixed uniformly, the water that total weight 18%~40% is added stirs evenly, and magnesiohulsite fiber reinforced fly ash composite material can be obtained in maintenance after pressure injection or vibration moulding.Use magnesiohulsite fiber as reinforced phase; obtain the fly ash composite material that compression strength and bending strength are remarkably reinforced; the composite material is the fly ash composite material of room temperature maintenance, will be had a wide range of applications in fields such as construction material, environmental protection, road, ordinary tower dam and bridges.
Description
Technical field
The present invention relates to a kind of composite material, in particular to a kind of magnesiohulsite fiber reinforced fly ash composite material and
Its technology of preparing.
Background technique
With the rapid development of our country's economy, power plant, city heat supply engineering are continuously increased, and the yield of flyash is also therewith
Increase.2006, only thermal power plant just generated about 2.4~2.9 hundred million tons of flyash and 0.2~0.3 hundred million tons of clinkers in China, occupy the world it
It is first.Currently, the utilization of fly ash rates of western developed country are up to 80% or more, and China is only 30%~40% or so.It does not obtain
The flyash utilized is largely discharged into ash-storing factory, landfill yard or rivers,lakes and seas.The accumulation of flyash does not only take up a large amount of soil
Ground, but also can cause seriously to pollute to ambient enviroment, destroy the ecological balance.Therefore, it increases and total utilization of PCA is ground
Study carefully and exploitation seems and becomes more and more important.
Currently, flyash main resource utilization ways have: 1) being applied in cement and concrete；2) it is used for building material
Production；3) it is used for road engineering；4) it is applied to agricultural；5) be applied to environmental protection in terms of, as sewage treatment, flue gas desulfurization and
Noise Prevention and Treatment medium；6) it is applied to chemical field, extracts high-purity alum to synthesize alumina, prepare flyash macromolecule filling material
Material extracts the Determination of multiple metal elements such as the raw material of industry Al, Ge, Ga, Ag, Cd, U.
However, still having variety of problems in total utilization of PCA.Such as: a) flyash and its product properties fluctuation
Greatly, durability is short of, and recycling degree is low；B) product grade is slightly lower, and corporate profit margin is low, affects the enthusiasm of enterprise；c)
Land use systems are more single, main channel be still build the road, building material, concrete and cement etc., and it is larger by seasonal effect, it is comprehensive
Utilization rate is relatively low, and there are significant regional disparities；D) during comprehensive utilization, there are still certain negative effects to environment,
As ash disposal area and transport vehicle dust pollution, extract utility after waste residue processing, agricultural heavy metals in process accumulation and build
Radioactivity problem of material product etc..
It is only improved the quality and durability of powdered coal ash product, its profit margin and utilization rate could be improved, to energy-saving and emission-reduction
It plays an important role with environmental pollution improvement.
Magnesiohulsite fiber is a kind of natural mineral fiber based on magnesium hydroxide, and China possesses black boron abundant
Tin magnesium ore resources.Magnesiohulsite fiber have excellent mechanical property and dispersion performance and it is low in cost, in conjunction with cement
The advantages that power is strong.
In addition, magnesiohulsite fiber is that alkali resistance is strongest in natural inorganic fiber, alkali resistance is much better than alkali resistant glass
Glass fiber can be to avoid the galvanic corrosion problems of fiber compared with steel fibre.Magnesiohulsite fiber is in cement concrete
Although application in flyash has not been reported using having there is some reports.
Summary of the invention
The purpose of the present invention is to propose to a kind of magnesiohulsite fiber reinforced fly ash composite material and its technologies of preparing.
The present invention realizes that process is as follows:
A kind of magnesiohulsite fiber reinforced fly ash composite material, composition and parts by weight are as follows:
0.2~8 part of magnesiohulsite fiber, 30~50 parts of flyash
20~30 parts of sand, 11~22 parts of cement
11~22 parts of white lime, 3~10 parts of gypsum
0.1~2 part of water-reducing agent.
Preferred composition and parts by weight are as follows:
0.3~5 part of magnesiohulsite fiber, 30~45 parts of flyash
20~30 parts of sand, 7~15 parts of cement
8~15 parts of white lime, 8~12 parts of gypsum
0.5~2 part of water-reducing agent.
Preferred composition and parts by weight are as follows:
1~5 part of magnesiohulsite fiber, 30~40 parts of flyash
20~30 parts of sand, 10~15 parts of cement
10~15 parts of white lime, 8~12 parts of gypsum
0.8~2 part of water-reducing agent.
The water-reducing agent is naphthalene water reducer, sulfamate water reducer, melamine water reducing agent or is used as concrete
The anionic surfactant of water-reducing agent, anionic surfactant are magnesiohulsite described in UNF-MA naphthalene water reducer
Fiber is 6 grades or less fibers.
One of the technology of preparing of above-mentioned magnesiohulsite fiber reinforced fly ash composite material, steps are as follows: by black boron tin
Magnesium mine fiber, flyash, sand, cement, white lime, gypsum and water-reducing agent are dry-mixed uniformly, and total weight 18%~40% is added
Water stirs evenly, and magnesiohulsite fiber reinforced fly ash composite material can be obtained in maintenance after pressure injection or vibration moulding.
The two of the technology of preparing of above-mentioned magnesiohulsite fiber reinforced fly ash composite material, steps are as follows: by flyash,
Sand, cement, white lime and gypsum it is dry-mixed A mixing, magnesiohulsite fiber and water-reducing agent it is dry-mixed B mixing, B mixing is added
Water dissolution, mixes with A mixing, and water accounts for the 18%~40% of total weight, and black boron can be obtained in maintenance after pressure injection or vibration moulding
Tin magnesium mine fiber reinforced fly ash composite material.
Advantages of the present invention and good effect: 1) it using magnesiohulsite fiber as reinforced phase, obtains compression strength and resists
The fly ash composite material that curved intensity is remarkably reinforced；2) composite material is the fly ash composite material of room temperature maintenance, this is compound
Material will have a wide range of applications in fields such as construction material, environmental protection, road, ordinary tower dam and bridges.
Specific embodiment
The chemical component of flyash is as shown in table 1.
1 chemical composition of PCA of table
| Chemical component | SiO2 | AL2O3 | Fe2O3 | CaO | MgO | SO3 |
| (Wt) % | 35~55 | 25~40 | 5~10 | 5~10 | 5~10 | 1~2 |
Embodiment one
By 32.5 Qinling Cements, the magnesiohulsite fiber that the river sand and the trade mark that fineness is 2.7 are 7X, white lime MgO
Content < 4%, (CaO+MgO) content > 65%, 0.125mm screen over-size < 10% meet JC/T481-92 building slaked lime powder
The requirement of first-class ash.Gypsum is with calcium sulphate dihydrate (CaSO4-2H2O) ore as main component.Cement content < in river sand
5%, clod content < 1% meet the standard of national technical standard BG14684-2001 building sand m class sand.Water-reducing agent is board
The naphthalene series high-efficiency water-reducing agent of number UNF-MA, by magnesiohulsite fiber, flyash, sand, cement, white lime, gypsum and diminishing
Agent is dry-mixed uniformly, and tap water is added and is stirred, and water accounts for the 30% of total weight, and stirring poured into mold casting after 3 minutes.It adopts
With room temperature wet curing 28 days, its performance is measured, is parts by weight in table.
The proportion and performance of 2 magnesiohulsite fiber reinforced fly ash composite material of table
Embodiment 2:
It is similar to Example 1, the difference is that cement uses 42.5 Qinling Cements, by magnesiohulsite fiber, flyash, sand
Son, cement, white lime, gypsum and water-reducing agent are dry-mixed uniformly, and tap water is added and is stirred, and water accounts for the 37% of total weight, stirring 5
Mold casting is poured into after minute.Using room temperature wet curing 28 days, its performance is measured.
The proportion and performance of 3 magnesiohulsite fiber reinforced fly ash composite material of table
Embodiment 3:
By 42.5 Qinling Cements, the magnesiohulsite fiber that the river sand and the trade mark that fineness is 2.7 are 7X, calcium hydroxide is
Calcareous calcium hydroxide, content of MgO < 4%, (CaO+MgO) content > 65%, 0.125mm screen over-size < 10% meet JC/
T481-92 builds the requirement of the first-class ash of slaked lime powder.Gypsum is with calcium sulphate dihydrate (CaSO4.2H2O) mine as main component
Stone.Cement content < 5% in river sand, clod content < 1% meet national technical standard BG14684-2001 building sand m class sand
Standard.By flyash, sand, cement, white lime and gypsum it is dry-mixed uniformly, the trade mark be UNF-MA naphthalene series high-efficiency water-reducing agent and
Magnesiohulsite fiber adds in above-mentioned dry blend after adding tap water to stir, and water accounts for the 27% of total weight, and stirring is poured into after 4 minutes
Mold casting.Using room temperature wet curing 28 days, its performance is measured.
The proportion and performance of 4 magnesiohulsite fiber reinforced fly ash composite material of table
Embodiment 4:
Similar to Example 1, water accounts for the 39% of total weight, and stirring poured into mold casting after 3 minutes.It is sprayed using room temperature
Water curing 28 days, measure its performance.
The proportion and performance of 5 magnesiohulsite fiber reinforced fly ash composite material of table
Embodiment 5:
Similar to Example 3, the difference is that water-reducing agent is sulfamate water reducer, water accounts for the 20% of total weight, stirring 5
Mold casting is poured into after minute.Using room temperature wet curing 28 days, its performance is measured.
The proportion and performance of 6 magnesiohulsite fiber reinforced fly ash composite material of table
Embodiment 6:
Similar to Example 3, mixing pours into mold casting after stirring 3 minutes.Using room temperature wet curing 28 days, survey
Measure its performance.
The proportion and performance of 7 magnesiohulsite fiber reinforced fly ash composite material of table
Embodiment 7:
Similar to Example 1, the difference is that water-reducing agent is sulfamate water reducer, mold note is poured into stirring after 4 minutes
Mold forming.Using room temperature wet curing 28 days, its performance is measured.
The proportion and performance of 8 magnesiohulsite fiber reinforced fly ash composite material of table
Embodiment 8:
It is similar to Example 1, it is added after tap water is stirred 4 minutes and pours into mold casting.It is sprayed water using room temperature
Maintenance 28 days, measures its performance.
The proportion and performance of 9 magnesiohulsite fiber reinforced fly ash composite material of table
Claims (7)
1. a kind of magnesiohulsite fiber reinforced fly ash composite material, composition and parts by weight are as follows:
0.2~8 part of magnesiohulsite fiber, 30~50 parts of flyash
20~30 parts of sand, 5~15 parts of cement
5~15 parts of white lime, 3~10 parts of gypsum
0.3~2 part of water-reducing agent.
2. magnesiohulsite fiber reinforced fly ash composite material according to claim 1, composition and parts by weight are as follows:
0.3~5 part of magnesiohulsite fiber, 30~45 parts of flyash
20~30 parts of sand, 7~15 parts of cement
8~15 parts of white lime, 8~12 parts of gypsum
0.5~2 part of water-reducing agent.
3. magnesiohulsite fiber reinforced fly ash composite material according to claim 2, composition and parts by weight are as follows:
1~5 part of magnesiohulsite fiber, 30~40 parts of flyash
20~30 parts of sand, 10~15 parts of cement
10~15 parts of white lime, 8~12 parts of gypsum
0.8~2 part of water-reducing agent.
4. according to claim 1 to 3 it is one of any described in magnesiohulsite fiber reinforced fly ash composite material, feature exists
In:
Water-reducing agent is naphthalene water reducer, sulfamate water reducer, melamine water reducing agent or the yin as cement water reducing agent
Ionic surfactant.
5. magnesiohulsite fiber reinforced fly ash composite material according to claim 4, it is characterised in that: anionic
Surfactant is UNF-MA naphthalene water reducer.
6. according to claim 1 to 3 it is one of any described in magnesiohulsite fiber reinforced fly ash composite material, feature exists
In: magnesiohulsite fiber, flyash, sand, cement, lime, gypsum and water-reducing agent is dry-mixed uniformly, total weight 18% is added
~40% water stirs evenly, and that magnesiohulsite fiber reinforced fly ash can be obtained is compound for maintenance after pressure injection or vibration moulding
Material.
7. the technology of preparing of magnesiohulsite fiber reinforced fly ash composite material described in claim 1, it is characterised in that: will
Flyash, sand, cement, lime and gypsum it is dry-mixed A mixing, magnesiohulsite fiber and water-reducing agent it is dry-mixed B mixing, by B
Mixing is dissolved in water, and mixes with A mixing, and water accounts for the 18%~40% of total weight, and maintenance can obtain after pressure injection or vibration moulding
To magnesiohulsite fiber reinforced fly ash composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373375.7A CN109369130A (en) | 2018-11-19 | 2018-11-19 | A kind of magnesiohulsite fiber reinforced fly ash composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373375.7A CN109369130A (en) | 2018-11-19 | 2018-11-19 | A kind of magnesiohulsite fiber reinforced fly ash composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109369130A true CN109369130A (en) | 2019-02-22 |
Family
ID=65389802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811373375.7A Pending CN109369130A (en) | 2018-11-19 | 2018-11-19 | A kind of magnesiohulsite fiber reinforced fly ash composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109369130A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844904A (en) * | 2010-06-10 | 2010-09-29 | 西北大学 | Brucite fiber reinforced fly ash composite material |
-
2018
- 2018-11-19 CN CN201811373375.7A patent/CN109369130A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844904A (en) * | 2010-06-10 | 2010-09-29 | 西北大学 | Brucite fiber reinforced fly ash composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103288398B (en) | High-performance machine-made sand marine concrete and preparation method thereof | |
| CN103936363B (en) | Underwater concrete of a kind of containing limestone serous matter Machine-made Sand and preparation method thereof | |
| CN108623196A (en) | A kind of lime excitation large dosage industrial residue low-carbon cement and preparation method thereof | |
| CN105948653A (en) | Recycled wet-mixed mortar and preparation method thereof | |
| CN104987117A (en) | Environment-friendly building thermal insulation materials | |
| CN104761229A (en) | Self-compacting concrete prepared from industrial solid wastes and preparation method thereof | |
| CN113213789B (en) | Paving brick prepared based on household garbage incineration fly ash and preparation method thereof | |
| CN111393083A (en) | Full-solid-waste high-performance concrete and preparation method and application thereof | |
| CN105198336A (en) | Seashore building cement resisting strong wind and big waves | |
| CN109912243B (en) | Cement produced by utilizing industrial solid wastes | |
| CN101844904B (en) | Brucite fiber reinforced fly ash composite material | |
| CN105669072A (en) | High performance concrete composite admixture produced by high silicon iron tailings | |
| CN111205049B (en) | Masonry mortar prepared from iron tailing powder and slag micro powder | |
| CN106396533B (en) | A kind of low concrete of creeping prepared using concrete mixing plant waste pulp | |
| CN102617060A (en) | Kaolin gangue composite powder and application of same in premixed concrete | |
| CN109354452A (en) | A kind of magnesite fiber reinforced fly ash composite material | |
| CN111320445A (en) | Method for preparing cement-based recycled aggregate from fine copper tailings | |
| CN115286348B (en) | Coal mine/coal chemical industry solid waste synthetic concrete material and preparation method thereof | |
| CN106478018A (en) | A kind of ecological environment-friendly type nano cement based composites | |
| CN116496014A (en) | Low-heat seawater-resistant cement and preparation method thereof | |
| CN105622022A (en) | Silt curing agent prepared from caustic sludge | |
| CN102145987A (en) | Environmentally friendly building block | |
| CN109369130A (en) | A kind of magnesiohulsite fiber reinforced fly ash composite material | |
| CN109400095A (en) | A kind of ludwigite fiber reinforced fly ash composite material | |
| CN109231926A (en) | A kind of carbon chrome magnesite fiber reinforced fly ash composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190222 |