CN104803619B - Geopolymer composition and geopolymer material - Google Patents
Geopolymer composition and geopolymer material Download PDFInfo
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- CN104803619B CN104803619B CN201410037871.0A CN201410037871A CN104803619B CN 104803619 B CN104803619 B CN 104803619B CN 201410037871 A CN201410037871 A CN 201410037871A CN 104803619 B CN104803619 B CN 104803619B
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- alkali
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- 239000000203 mixture Substances 0.000 title claims abstract description 35
- 229920000876 geopolymer Polymers 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 title claims abstract description 9
- 239000010881 fly ash Substances 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 26
- 239000002861 polymer material Substances 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 16
- 239000012190 activator Substances 0.000 claims description 14
- 238000009472 formulation Methods 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- 239000012744 reinforcing agent Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000004088 foaming agent Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims 2
- 239000003054 catalyst Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000009826 distribution Methods 0.000 description 13
- 235000013339 cereals Nutrition 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000010883 coal ash Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000002902 bimodal effect Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 241000165940 Houjia Species 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 229920000592 inorganic polymer Polymers 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- 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
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a geopolymer composition and a geopolymer material. The geopolymer composition contains an alkaline excitant and fly ash, and the fly ash includes two or three of a component A, a component B and a component C according to different average particle sizes, wherein the average particle size of the component A is smaller than 5[mu]m, the average particle size of the component B is greater than 5[mu]m and not greater than 40[mu]m, and the average particle size of the component C is greater than 40[mu]m. The geopolymer material prepared from the geopolymer composition has high compressive strength and can meet application in the field of building engineering and the like.
Description
Technical field
The present invention relates to geopolymer formulation and geology polymer material.
Background technology
With the regulation of people's environmental protection, the raising of awareness of saving energy and national policy, all trades and professions are all in environmental protection, energy-saving square
Face is strengthened research and development capabilities, preferably to protect the environment of human lives.
Geo-polymer（Geopolymer）It is to study one of very active nonmetallic materials in the world in recent years.It is
With silicon-containing solid material such as clay, industrial residue or slag as primary raw material, Jing appropriate PROCESS FOR TREATMENT, in lower temperature conditions
The class Novel Inorganic Polymers material for being obtained by chemical reaction down, can substitute cement for building, build the road, artificial sea
The fields such as island, prefabricated component, refractory material.At present the more geo-polymer raw materials of research are flyash.
Flyash is the solid waste that coal-fired electric field is discharged, and is one of larger industrial residue of discharge capacity, if by its
Utilize, it can be greatly reduced and stack occupation of land pollution.Flyash has the potential hydraulicity, if it is reached using cement is replaced
To required adhesive property etc., then in addition to reducing the pollution of its own, moreover it is possible to less with highly energy-consuming, heavy-polluted cement, realize
Environmental friendliness, therefore, the utilization of flyash is the important directions that current research is actively developed.
But, in the prior art, the compression strength of geology polymer material also needs further improvement.
The content of the invention
It is an object of the invention to provide a kind of geo-polymer group of the compression strength that can improve geology polymer material
Compound and geology polymer material.
The present inventor is through experiment for several times and gropes to find, using coal ash for manufacturing for geology polymer material
When, the particle size range of its flyash directly affects the compression strength of geology polymer material, such as the particle diameter distribution mode of flyash
When identical, the compression strength of geology polymer material is with the reduction of average grain diameter into non-linear increase.On this basis, utilizing
When coal ash for manufacturing is for geology polymer material, using two or three particle diameter distribution flyash obtained in geology polymer material
Compared with geology polymer material obtained in the flyash of single particle size distribution, its compression strength will be significantly improved further.
To achieve these goals, the invention provides a kind of geopolymer formulation, wherein, the geo-polymer group
Compound contains alkali-activator and flyash, and the flyash is according to different average grain diameters comprising in component A, component B and component C
The two or three, wherein, the average grain diameter of component A is less than 5 microns, the average grain diameter of component B be more than 5 microns and less than etc.
In 40 microns, the average grain diameter of component C is more than 40 microns.
On the basis of the total amount of flyash, the content of component A, component B and component C can be independently of one another 0-98 weights
Amount %, and the content sum of component A, component B and component C is 100 weight %.According to the present invention a kind of preferred embodiment, with
On the basis of the total amount of flyash, the content of component A is 0-40 weight %, preferably 0-30 weight %；The content of component B is 10-95
Weight %, preferably 20-90 weight %；The content of component C be 0-80 weight %, preferably 0-30 weight %, and component A, component B and
The content sum of component C is 100 weight %.
Preferably, in component A, flyash of the particle diameter less than 5 microns is accounted for more than 70 weight % of component A；It is highly preferred that group
In dividing A, flyash of the particle diameter less than 5 microns is accounted for more than 75 weight % of component A.In component B, particle diameter is micro- more than 5 less than 40 microns
The flyash of rice is accounted for more than 70 weight % of component B；It is highly preferred that flyash of the particle diameter less than 40 microns more than 5 microns accounts for component
It is more than 75 weight % of B.In component C, flyash of the particle diameter less than 300 microns more than 40 microns is accounted for more than 70 weight % of component C；
It is highly preferred that flyash of the particle diameter less than 300 microns more than 40 microns is accounted for more than 75 weight % of component C.It is preferable to carry out according to this
Mode, can further improve the compression strength of obtained geology polymer material.
Flyash is the solid waste produced after coal combustion, can include SiO2、Al2O3、Fe2O3, the component such as CaO.
Component A, component B and component C can be obtained respectively by being ground to required particle size range and being screened.
Preferably, the particle diameter distribution mode of the flyash can be bimodal or multi-modal mode.
To the species and consumption of the alkali-activator, there is no particular limitation, gathers as long as meeting and making flyash form geology
Compound material.
Relative to the flyash of 100 weight portions, the content of the alkali-activator can be 10-100 weight portions, preferably
30-60 weight portions.
The alkali-activator is the alkali-activator based on alkali silicate and/or alkaline-earth-metal silicate, preferably
It is based on the alkali-activator of alkali silicate.
Modulus based on the alkali-activator of alkali silicate（That is SiO2/M2The mol ratio of O）Preferably not less than 2.2, more
Preferably not less than 2.4, wherein M represents alkali metal.
It is highly preferred that the alkali-activator is waterglass.Relative to the total amount of waterglass, the solids content of waterglass can
Think and be not less than 34 weight % but less than 46 weight %, preferably 34.5 weight % are to 42 weight %.
Preferably, said composition also contains additive.Relative to the flyash of 100 weight portions, the content of the additive
Can be 0.5-25 weight portions, preferably 1-10 weight portions.The additive can be water reducer, early strength agent, waterproofing agent, catalysis
One or more in agent, foaming agent, foam stabilizer and pumping admixture.
Preferably, said composition also contains compression strength reinforcing agent.Relative to the flyash of 100 weight portions, the resistance to compression
The content of intensity reinforcing agent can be 0.01-5 weight portions, preferably 0.05-2 weight portions.The compression strength reinforcing agent can be with
For toughened fiber and/or slag.
The geopolymer formulation that the present invention is provided can pass through conventional preparation method and be obtained, such as by various composition
It is well mixed, obtains slurry.In mixed process, preferably it is stirred, the rotating speed of stirring can be 50-150rpm, preferred 60-
125rpm.The time of mixing can be 10 seconds to 10 minutes, preferably 10 seconds to 5 minutes.
Present invention also offers a kind of geology polymer material, material geopolymer formulation provided by the present invention
Make.
It can be conventional side that geopolymer formulation provided by the present invention prepares the method for geology polymer material
Method, for example, the geopolymer formulation casting of the pulp-like being well mixed, natural curing can also enter as needed
The cutting of one step, finished product.
Geology polymer material has higher compression strength by obtained in the geopolymer formulation of the present invention, can
Meet the application in the fields such as architectural engineering.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Fig. 1 is the grain size distribution of the flyash of raw material 4 and embodiment 2 in specific embodiment of the invention.
Specific embodiment
Hereinafter will be described the present invention by embodiment.
Preparation example
By grinding and screening, particle diameter distribution flyash as shown in table 1 is obtained.
Table 1
Embodiment 1-4
According to the proportioning shown in table 2 below above-mentioned different material is mixed according to different average grain diameters, be obtained two or three
The flyash of particle diameter distribution.
Table 2
Fig. 1 shows the particle diameter distribution of the flyash of raw material 4 and embodiment 2, and the wherein particle diameter distribution of raw material 4 is single grain
Footpath is distributed, and the particle diameter distribution of the flyash of embodiment 2 is bimodal distribution mode.
Embodiment 5-8
Embodiment 5 to 8 is used to prepare the geology polymer material of the present invention.
NaOH used is the pure product of chemistry in the embodiment of the present invention, purchased from Chinese Medicine group Beijing Company.It is used
Water be deionized water.
（1）Solution is prepared
Waterglass is diluted with water to into set concentration.It is configured to set concentration according to modulus set in table 3 below
The aqueous solution.
(2) prepared by slurry
According to the consumption shown in table 3, the flyash of embodiment 1-4 is poured in NJ-16A cement mixers, Ran Houjia
Enter waterglass, and setting speed is to stir under 60rpm.Stirring is obtained a homogeneous mixture after 2 minutes, then by the cement mortar for obtaining
In pouring testing mould into.
(3) sample test
For intensity test, condition of molding is that room temperature and relative humidity are（50±10）%.After shaping, by sample
In being transferred to cement standard curing box, in standard curing condition（20 ± 1 DEG C, relative humidity >=90%）It is lower to place 28 days.Then will
The sample demoulding simultaneously tests it 1 day according to GB/T17671-1999,14 days and 28 days compression strength.For the sample of 28 days intensity,
Continue to conserve in constant-temp. and-moisture maintenance after the 24h demouldings.As a result it is listed in the table below in 3.
Comparative example 1-3
According to embodiment 5-8 identical method, obtain sample using the coal ash for manufacturing of preparation example and be measured, as a result such as
Shown in table 3.
Table 3
Can be seen that average grain diameter is close or even during larger average grain diameter from the result shown in table 3, what the present invention was provided
28 days normal temperature of sample made by the flyash containing two or three average particle size distribution conserve compression strength apparently higher than only
Sample made by flyash containing single particle size distribution.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy is no longer separately illustrated.
Additionally, can also be combined between a variety of embodiments of the present invention, as long as it is without prejudice to this
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (17)
1. a kind of geopolymer formulation, wherein, the geopolymer formulation contains flyash and alkali-activator, described
The different average grain diameters of flyash foundation include the two in component A, component B and component C or three, wherein, the average grain of component A
Footpath is less than 5 microns, and the average grain diameter of component B is that, more than 5 microns and less than or equal to 40 microns, the average grain diameter of component C is big
In 40 microns；In component B, flyash of the particle diameter less than 40 microns more than 5 microns is accounted for more than 70 weight % of component B.
2. composition according to claim 1, wherein, on the basis of the total amount of flyash, component A, component B and component C
Content be each independently 0-98 weight %, and the content sum of component A, component B and component C is 100 weight %.
3. composition according to claim 2, wherein, on the basis of the total amount of flyash, the content of component A is 0-40 weights
Amount %, the content of component B is 10-95 weight %, and the content of component C is 0-80 weight %, and component A, component B and component C
Content sum is 100 weight %.
4. composition according to claim 2, wherein, on the basis of the total amount of flyash, the content of component A is 0-30 weights
Amount %, the content of component B is 20-90 weight %, and the content of component C is 0-30 weight %, and component A, component B and component C
Content sum is 100 weight %.
5. the composition according to any one of claim 1-4, wherein, in component A, flyash of the particle diameter less than 5 microns
Account for more than 70 weight % of component A.
6. the composition according to any one of claim 1-4, wherein, in component C, particle diameter is more than 40 less than 300 microns
The flyash of micron is accounted for more than 70 weight % of component C.
7. the composition according to any one of claim 1-4, wherein, relative to the flyash of 100 weight portions, the alkali
Property exciting agent content be 10-100 weight portions.
8. the composition according to any one of claim 1-4, wherein, relative to the flyash of 100 weight portions, the alkali
Property exciting agent content be 30-60 weight portions.
9. the composition according to any one of claim 1-4, wherein, the alkali-activator is based on alkali metal silicate
The alkali-activator of salt and/or alkaline-earth-metal silicate, modulus is not less than 2.2.
10. composition according to claim 9, wherein, the alkali-activator modulus is not less than 2.4.
11. compositions according to claim 9, wherein, the alkali-activator is waterglass, and its solids content is not less than
34 weight % but less than 46 weight %.
12. compositions according to claim 11, wherein, the alkali-activator solids content is 34.5 weight % to 42
Weight %.
13. compositions according to any one of claim 1-4, wherein, said composition also contains additive, relative to
The flyash of 100 weight portions, the content of the additive is 0.5-25 weight portions, and the additive is water reducer, early strength agent, prevents
One or more in aqua, catalyst, foaming agent, foam stabilizer and pumping admixture.
14. compositions according to claim 13, wherein, relative to the flyash of 100 weight portions, the additive contains
Measure as 1-10 weight portions.
15. compositions according to any one of claim 1-4, wherein, said composition also contains compression strength reinforcing agent,
Relative to the flyash of 100 weight portions, the content of the compression strength reinforcing agent is 0.01-5 weight portions, and the compression strength increases
Strong agent is toughened fiber and/or slag.
16. compositions according to right 15, wherein, relative to the flyash of 100 weight portions, the compression strength reinforcing agent
Content be 0.05-2 weight portions.
A kind of 17. geology polymer materials, composition of the material by described in any one in claim 1-16 is made.
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| CN201410037871.0A CN104803619B (en) | 2014-01-26 | 2014-01-26 | Geopolymer composition and geopolymer material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410037871.0A CN104803619B (en) | 2014-01-26 | 2014-01-26 | Geopolymer composition and geopolymer material |
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| CN104803619A CN104803619A (en) | 2015-07-29 |
| CN104803619B true CN104803619B (en) | 2017-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11993691B2 (en) | 2016-07-20 | 2024-05-28 | Synthos S.A. | Use of geopolymeric additive in combination with non-brominated flame retardant in polymer foams |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837066B (en) * | 2016-04-08 | 2018-01-02 | 济南大学 | A kind of Foamed Nickel scum geo-polymer and preparation method thereof |
| CN105776910B (en) * | 2016-04-08 | 2018-03-27 | 济南大学 | A kind of ferronickel slag geo-polymer and preparation method thereof |
| HUE056741T2 (en) * | 2016-07-20 | 2022-03-28 | Synthos Dwory 7 Spolka Z Ograniczona Odpowiedzialnoscia Spolka Jawna | Process for the production of geopolymer or geopolymer composite |
| WO2018015494A1 (en) | 2016-07-20 | 2018-01-25 | Synthos S.A. | Modified geopolymer and modified geopolymer composite and process for the production thereof |
| CN106565210A (en) * | 2016-11-10 | 2017-04-19 | 神华集团有限责任公司 | Composition for preparing spherical ceramic particles, and spherical ceramic particles as well as preparation method and application thereof |
| CN109206033B (en) * | 2017-06-29 | 2022-01-21 | 润泰精密材料股份有限公司 | Non-calcined cement composition, non-calcined concrete and method for producing the same |
| CN110078426A (en) * | 2019-05-14 | 2019-08-02 | 安徽扬采材料科技有限公司 | A kind of geo-polymer modified polyphenyl insulation board |
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| US11993691B2 (en) | 2016-07-20 | 2024-05-28 | Synthos S.A. | Use of geopolymeric additive in combination with non-brominated flame retardant in polymer foams |
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| CN104803619A (en) | 2015-07-29 |
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