CN108840653A - High-strength heat-insulating material of a kind of polypropylene fibre enhancing green and preparation method thereof - Google Patents
High-strength heat-insulating material of a kind of polypropylene fibre enhancing green and preparation method thereof Download PDFInfo
- Publication number
- CN108840653A CN108840653A CN201810926106.2A CN201810926106A CN108840653A CN 108840653 A CN108840653 A CN 108840653A CN 201810926106 A CN201810926106 A CN 201810926106A CN 108840653 A CN108840653 A CN 108840653A
- Authority
- CN
- China
- Prior art keywords
- polypropylene fibre
- flyash
- insulating material
- miberal powder
- strength heat
- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to building material technical fields, and in particular to a kind of high-strength heat-insulating material of polypropylene fibre enhancing green and its application method.By flyash, miberal powder, waterglass, sodium hydroxide, H2O2, polypropylene fibre composition；Wherein, flyash and miberal powder play cementation by the activity excitation of waterglass, modulus of water glass is adjusted by sodium hydroxide, H as gelling system2O2It decomposes generation gas and forms hole in slurry, the addition of polypropylene fibre improves the anti-shrink cracking performance of the high-strength heat-insulating material.Not only there is energy conservation and environmental protection meaning, and its compression strength is higher, thermal coefficient is low, drying shrinkage is low.The present invention uses convention stir mode, room temperature maintaining process, makes full use of the gelling of trade waste itself, improves its surcharge, improves social benefit；The production cost for reducing similar heat-insulating material simultaneously, increases economic efficiency.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of high-strength heat-insulating material of polypropylene fibre enhancing green
And preparation method thereof.
Background technique
Heat preserving and insulating material is used in building, can be reduced the dosage of basic architecture material, be mitigated the weight of building enclosure
Amount, accompanied by substantial power saving, for promoting the development of construction industry, alleviating energy crisis and the residential level for improving the people have
Significance.Novel energy-saving construction material is the material base of building energy conservation, and different from common construction material, it will not only have
There is the basic performance of high-strength light, and there are the thermal properties such as good insulation.In addition, novel energy-saving construction material
It also requires to reduce to the greatest extent in the production of material or without using non-renewable resources, makes full use of the materials such as industrial residue, waste
Material, reduces production cost while reducing environmental pollution.
The discharge amount of the industrial residues such as the annual flyash in China and slag powders is very big, not only causes and is difficult to environment
The pressure of appraisal and huge energy waste.Flyash is a kind of clay class pozzolanic materials, has potential hydraulic living
Property；And levigate miberal powder has very big potential activity, when reaching certain fineness, under the action of alkali-activator, in table
Face can form many silicate ions.Added using flyash and miberal powder as cementitious material by the activity excitation of alkali-activator
Enter hydrogen peroxide and polypropylene fibre prepares inorganic high-strength green heat-insulating material, not only can solve the processing problem of industrial residue, becomes
Waste be changed into values, and as a kind of novel building energy-saving material, there is very big application prospect.
Summary of the invention
The purpose of the present invention is to provide one kind with energy conservation and environmental protection meaning, compression strength is higher, thermal coefficient is low, dry
The low high-strength heat-insulating material of polypropylene fibre enhancing green and preparation method thereof of shrinking percentage.
A kind of high-strength heat-insulating material of polypropylene fibre enhancing green proposed by the present invention, by flyash, miberal powder, waterglass,
H2O2It is formed with polypropylene fibre, wherein flyash：The mass ratio of miberal powder is 7:3~5:5, modulus of water glass is 1.4~1.6,
With Na2O meter, the volume of waterglass are 4%~6.0%, H of flyash and miberal powder gross mass2O2Volume be flyash and miberal powder it is total
The 3.5%~4.0% of quality, every 1m3Flyash and miberal powder total volume in, the volume of polypropylene fibre is 1.2kg/m3。
In the present invention, the waterglass and flyash, miberal powder, H2O2Liquid-solid ratio with polypropylene fibre is 0.52~0.60.
In the present invention, flyash：The mass ratio of miberal powder is 6:4, modulus of water glass 1.5, the volume of waterglass is fine coal
5%, H of ash and miberal powder gross mass2O2Volume be the 3.75% of flyash and miberal powder gross mass, every 1m3Flyash and miberal powder it is total
In volume, the volume of polypropylene fibre is 1.2kg/m3。
In the present invention, the waterglass and flyash, miberal powder, H2O2Liquid-solid ratio with polypropylene fibre is 0.56.
In the present invention, the flyash is second class powered coal ash.
In the present invention, the waterglass is sodium silicate, and initial modulus is 3.25, Na2O content is 8.77%, waterglass mould
Number is adjusted by sodium hydroxide.
In the present invention, the H2O2Using hydrogen peroxide, H in hydrogen peroxide2O2Content is 30%.
In the present invention, the polypropylene fibre length is 12mm, density 0.91kg/m3, elongation at break be 15~
20%。
The preparation method of the high-strength heat-insulating material of polypropylene fibre enhancing green proposed by the present invention, specific step is as follows：
When construction molding, by raw material proportioning, first flyash, miberal powder, waterglass and polypropylene fibre is put into blender and stirred
Uniformly, control solution temperature is 25~30 DEG C, and as blade of stirrer rotates, hydrogen peroxide is added, stops after stirring 10~15s,
Slurry is obtained, gained slurry is poured into mold, the demoulding after slurry height no longer changes is cut by size, is supported
Shield can construct to certain age.
In the high-strength heat-insulating material of polypropylene fibre enhancing green provided by the invention, various raw material had both had different works
With, and interact, preparation process design is also with their own characteristics.3 kinds of functions of product of the present invention are realized by 3 kinds of approach：Firstly,
The compact texture that mechanical property is formed by the synergistic effect of flyash, miberal powder and waterglass；Secondly, heat transfer property relies on H2O2
A large amount of holes that the bubble of generation is formed in system；Resist drying shrinkage is taken in the matrix of system by polypropylene fibre
It connects, prevents cup shake from spreading, while the toughness of reinforcing material.
The present invention does not use highly energy-consuming raw material, makes full use of trade waste-miberal powder and flyash as raw material,
Hydrogen peroxide is added and polypropylene fibre is prepared with green energy conservation meaning, the higher heat-insulating material of intensity, it is close with identical over dry
The light cement base heat-insulating material of degree is compared, not only compression strength with higher and lower thermal coefficient, while dry receipts
Shrinkage is also relatively low, and such relative reduction cost improves the competitiveness of product in market.
The present invention has following major advantage compared with existing similar techniques：
1. the diversity of raw material selection.Miberal powder and flyash used in product of the present invention are all trade wastes, not using height
The raw material of energy consumption high pollution, such as cement economize on resources so product of the present invention can reduce production energy consumption, more market
Competitiveness.
2. scale.Preparation method of the present invention is simple, does not need special technique, is suitable for large-scale industrial production, holds
It is also easy to produce scale and benefit.
3. high-strength heat-insulating property and resist drying shrinkage.Compared with traditional lightweight cement base heat-insulating material, product of the present invention
The mechanical strength standard requirements of light cement base heat-insulating material are not only able to satisfy, also with excellent thermal and insulating performance and well
Anti-shrink cracking behavior.
4. low cost.Product of the present invention preparation process is simple, and largely utilizes trade waste, low in cost.
So technical method provided by the invention is more more with practical value than traditional similar techniques method.
Specific embodiment
The present invention is further illustrated below by embodiment.
Embodiment 1, the high-strength heat-insulating material of a kind of polypropylene fibre enhancing green, by flyash：The mass ratio of miberal powder is 7:
3, adjusting modulus of water glass with sodium hydroxide is 1.6, and liquid-solid ratio 0.52, Water glass content is flyash and miberal powder gross mass
4%, H2O2Volume is the 3.5% of flyash and miberal powder gross mass, polypropylene fiber 1.2kg/m3Match ratio be formulated.
The performance test results are shown in Table 1.When construction molding, first flyash, miberal powder, waterglass and polypropylene fibre are put into blender and stirred
It mixes uniformly, control solution temperature is 25~30 DEG C, and as blade of stirrer rotates, hydrogen peroxide is added, stops after stirring 10~15s
Only, slurry is obtained, gained slurry is poured into mold, the demoulding after slurry height no longer changes is cut by size,
Maintenance can construct to certain age.
Embodiment 2, the high-strength heat-insulating material of a kind of polypropylene fibre enhancing green, by flyash：The mass ratio of miberal powder is 6:
4, adjusting modulus of water glass with sodium hydroxide is 1.6, and liquid-solid ratio 0.52, Water glass content is flyash and miberal powder gross mass
4%, H2O2Volume is the 3.75% of flyash and miberal powder gross mass, polypropylene fiber 1.2kg/m3Match ratio be formulated.
The performance test results are shown in Table 1.
Embodiment 3, the high-strength heat-insulating material of a kind of polypropylene fibre enhancing green, by flyash：The mass ratio of miberal powder is 6:
4, adjusting modulus of water glass with sodium hydroxide is 1.5, and liquid-solid ratio 0.56, waterglass is mixed for the amount of flyash and miberal powder gross mass
5%, H2O2Volume is the 3.75% of flyash and miberal powder gross mass, polypropylene fiber 1.2kg/m3Match ratio be formulated.
The performance test results are shown in Table 1.
1 embodiment the performance test results of table
| Performance indicator | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Absolute Dry Density（kg/m3） | 320 | 280 | 240 |
| 28d compression strength（MPa） | 2.07 | 1.82 | 1.62 |
| Thermal coefficient（W/(m·K)） | 0.075 | 0.062 | 0.049 |
| 28d drying shrinkage（×10-6） | 2896.8 | 3140.5 | 3235.6 |
Claims (9)
1. a kind of high-strength heat-insulating material of polypropylene fibre enhancing green, it is characterised in that：By flyash, miberal powder, waterglass, H2O2
It is formed with polypropylene fibre, wherein flyash：The mass ratio of miberal powder is 7:3~5:5, modulus of water glass is 1.4~1.6, with
Na2O meter, the volume of waterglass are 4%~6.0%, H of flyash and miberal powder gross mass2O2Volume be flyash and the total matter of miberal powder
The 3.5%~4.0% of amount, every 1m3Flyash and miberal powder total volume in, the volume of polypropylene fibre is 1.2kg/m3。
2. the high-strength heat-insulating material of polypropylene fibre enhancing green according to claim 1, it is characterised in that：The waterglass
With flyash, miberal powder, H2O2Liquid-solid ratio with polypropylene fibre is 0.52~0.60.
3. the high-strength heat-insulating material of polypropylene fibre enhancing green according to claim 1, it is characterised in that：Flyash：Mine
The mass ratio of powder is 6:4, modulus of water glass 1.5, the volume of waterglass is 5%, H of flyash and miberal powder gross mass2O2Mix
Amount is the 3.75% of flyash and miberal powder gross mass, every 1m3Flyash and miberal powder total volume in, the volume of polypropylene fibre is
1.2kg/m3。
4. the high-strength heat-insulating material of polypropylene fibre enhancing green according to claim 2, it is characterised in that：The waterglass
With flyash, miberal powder, H2O2Liquid-solid ratio with polypropylene fibre is 0.56.
5. the high-strength heat-insulating material of polypropylene fibre enhancing green according to claim 1, it is characterised in that：The flyash
For second class powered coal ash.
6. the high-strength heat-insulating material of polypropylene fibre enhancing green according to claim 1, it is characterised in that：The waterglass
For sodium silicate, initial modulus is 3.25, Na2O content is 8.77%, and modulus of water glass is adjusted by sodium hydroxide.
7. the high-strength heat-insulating material of polypropylene fibre enhancing green according to claim 1, it is characterised in that：The H2O2It adopts
With hydrogen peroxide, H in hydrogen peroxide2O2Content is 30%.
8. the high-strength heat-insulating material of polypropylene fibre enhancing green according to claim 1, it is characterised in that：The polypropylene
Fibre length is 12mm, density 0.91kg/m3, elongation at break is 15~20%.
9. a kind of preparation method of the high-strength heat-insulating material of polypropylene fibre enhancing green as described in claim 1, feature exist
In：Specific step is as follows：
When construction molding, by raw material proportioning, first flyash, miberal powder, waterglass and polypropylene fibre is put into blender and stirred
Uniformly, control solution temperature is 25~30 DEG C, and as blade of stirrer rotates, hydrogen peroxide is added, stops after stirring 10~15s,
Slurry is obtained, gained slurry is poured into mold, the demoulding after slurry height no longer changes is cut by size, is supported
Shield can construct to certain age.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810926106.2A CN108840653A (en) | 2018-08-15 | 2018-08-15 | High-strength heat-insulating material of a kind of polypropylene fibre enhancing green and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810926106.2A CN108840653A (en) | 2018-08-15 | 2018-08-15 | High-strength heat-insulating material of a kind of polypropylene fibre enhancing green and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108840653A true CN108840653A (en) | 2018-11-20 |
Family
ID=64188176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810926106.2A Pending CN108840653A (en) | 2018-08-15 | 2018-08-15 | High-strength heat-insulating material of a kind of polypropylene fibre enhancing green and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108840653A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516730A (en) * | 2018-12-07 | 2019-03-26 | 华北理工大学 | The preparation facilities and method of fly ash based mineral polymer foaming self-thermal insulation material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603355A (en) * | 2012-03-18 | 2012-07-25 | 巢启 | Basic group geopolymer porous material |
| CN102815903A (en) * | 2012-08-14 | 2012-12-12 | 中国地质大学（北京） | Preparation method for foaming cement thermal insulation board |
| CN103641433A (en) * | 2013-12-09 | 2014-03-19 | 广西启利新材料科技股份有限公司 | Porous geopolymer-based phase-change energy storage material |
| CN105272137A (en) * | 2015-10-09 | 2016-01-27 | 中建商品混凝土成都有限公司 | Alkali activated phosphorus slag micropowder light foam concrete thermal insulation board and preparation method thereof |
| CN105541381A (en) * | 2015-12-21 | 2016-05-04 | 同济大学 | Environment-friendly high-strength inorganic heat-insulating material and preparation method therefor |
-
2018
- 2018-08-15 CN CN201810926106.2A patent/CN108840653A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603355A (en) * | 2012-03-18 | 2012-07-25 | 巢启 | Basic group geopolymer porous material |
| CN102815903A (en) * | 2012-08-14 | 2012-12-12 | 中国地质大学（北京） | Preparation method for foaming cement thermal insulation board |
| CN103641433A (en) * | 2013-12-09 | 2014-03-19 | 广西启利新材料科技股份有限公司 | Porous geopolymer-based phase-change energy storage material |
| CN105272137A (en) * | 2015-10-09 | 2016-01-27 | 中建商品混凝土成都有限公司 | Alkali activated phosphorus slag micropowder light foam concrete thermal insulation board and preparation method thereof |
| CN105541381A (en) * | 2015-12-21 | 2016-05-04 | 同济大学 | Environment-friendly high-strength inorganic heat-insulating material and preparation method therefor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516730A (en) * | 2018-12-07 | 2019-03-26 | 华北理工大学 | The preparation facilities and method of fly ash based mineral polymer foaming self-thermal insulation material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103664073B (en) | A kind of autoclave aerated concrete building block utilizing Yellow River Sand to prepare and preparation method thereof | |
| CN104230280B (en) | Low-shrinkage sludge ceramsite alkali-activated full-slag foam concrete plate and preparation method thereof | |
| CN106007434B (en) | A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite and preparation method thereof | |
| CN101581131B (en) | Non-autoclaved aerated concrete building block and manufacturing method | |
| CN101608483B (en) | Phosphogypsum composite autoclaved brick and preparation method thereof | |
| CN105254324A (en) | Air-entrapping steam curing component prepared from construction waste and preparation method thereof | |
| CN102701667B (en) | Novel thermal-insulation high-strength mortar of rice hull | |
| CN102875066A (en) | Chromic slag aerated brick and preparation method thereof | |
| CN110510974A (en) | A kind of efficient aeroge solid waste concrete and preparation method thereof | |
| CN105645904A (en) | Non-autoclaved aerated concrete prepared by utilizing lithium slag and nickel slag and preparation method of non-autoclaved aerated concrete | |
| CN102617096A (en) | Method for preparing aerated concrete by controlling iron direction using low-silicon iron tailings | |
| CN110511056A (en) | A kind of foam concrete block and preparation method thereof | |
| CN114044665B (en) | Assembled aerated concrete plate prepared from garbage bottom slag and preparation method thereof | |
| CN102875186B (en) | Fluorite slag aerated brick and preparation method thereof | |
| CN112341101A (en) | Light recycled concrete and preparation method thereof | |
| CN115477528A (en) | Environment-friendly autoclaved aerated concrete block and preparation method thereof | |
| CN106145849A (en) | A kind of non-evaporating pressure high-strength alkali-activated carbonatite air entrained concrete and its preparation method and application | |
| CN110627464A (en) | Manufacturing process of granite powder autoclaved aerated concrete | |
| CN104086146A (en) | Resource utilization method of mine tailings | |
| CN108640621A (en) | A kind of the assembling thermal-insulating wall board material and preparation method of the wood ceramics of base containing sawdust lightweight aggregate | |
| CN103319199B (en) | Naturally-foamed non-autoclaved novel wall block | |
| CN108840653A (en) | High-strength heat-insulating material of a kind of polypropylene fibre enhancing green and preparation method thereof | |
| CN105541381A (en) | Environment-friendly high-strength inorganic heat-insulating material and preparation method therefor | |
| CN103936387B (en) | A kind of preparation method of light flyash base thermal insulation material | |
| CN108358522A (en) | One kind is non-evaporating to support lightweight aerated brick and preparation method thereof |
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: 20181120 |