CN101412596A - Silicon-aluminum polymeric material and preparation thereof - Google Patents
Silicon-aluminum polymeric material and preparation thereof Download PDFInfo
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- CN101412596A CN101412596A CNA2008102249827A CN200810224982A CN101412596A CN 101412596 A CN101412596 A CN 101412596A CN A2008102249827 A CNA2008102249827 A CN A2008102249827A CN 200810224982 A CN200810224982 A CN 200810224982A CN 101412596 A CN101412596 A CN 101412596A
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- 239000000463 material Substances 0.000 title claims abstract description 63
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 97
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 54
- 238000001354 calcination Methods 0.000 claims abstract description 38
- 239000002893 slag Substances 0.000 claims abstract description 32
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 26
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000000227 grinding Methods 0.000 claims abstract description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 48
- 239000011707 mineral Substances 0.000 claims description 48
- 238000012545 processing Methods 0.000 claims description 47
- 239000010881 fly ash Substances 0.000 claims description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 7
- 239000004571 lime Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 239000011083 cement mortar Substances 0.000 description 7
- 239000004570 mortar (masonry) Substances 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000003469 silicate cement Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000037048 polymerization activity Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- 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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a silicon-aluminum polymeric material, which comprises 60 to 90 weight percent of calcined bauxite tailing powder, 40 to 10 weight percent of slag powder, and 20 to 80 percent of water glass of the total weight of calcined bauxite tailing and slag. The invention also discloses a preparation method for the material, which comprises the following steps: a. calcining the bauxite tailing, and grinding the calcined bauxite tailing to obtain the calcined bauxite tailing powder; b. mixing 40 to 10 weight percent of the slag powder and 60 to 90 weight percent of the calcined bauxite tailing powder evenly, and preparing powder material; and c. adding 20 to 80 percent of the water glass of the weight of the powder material in step b, and preparing the silicon-aluminum polymeric material, wherein the calcining temperature is between 800 and 1,000 DEG C, and the calcining time is between 0.5 and 10 hours. The material has the advantages of excellent mechanical performance, chemical corrosion resistance and volume stability; and the preparation method is simple, uses industrial wastes as raw materials, has low cost, not only can solve stockpiling problem of wastes, but also achieves comprehensive utilization of resources.
Description
Technical field
The present invention relates to a kind of material of construction, particularly relate to a kind of silicon-aluminum polymeric material, the invention still further relates to the preparation method of this silicon-aluminum polymeric material.
Background technology
At the material technology development field, develop energy is low in resources consumption, and carrying capacity of environment is low, the significant material of effects of energy saving and emission reduction and technology of preparing receive much concern.Be the silicon-aluminum polymeric material of the main kind low material of a kind of Energy resources carrying capacity of environment that comes to this with native polywater mud, alkali-excited cement etc.Compare with silicate cement, characteristics such as this material has the industrial waste of utilization on preparation technology, synthesis temperature is low, and have strong advantage on performance have peculiar advantage at aspects such as acidproof, high temperature resistant, fixed poisonous harmful wastes simultaneously.Therefore hanker after the research and development of silicon-aluminum polymeric material new technology and the developing of Application Areas thereof both at home and abroad at present.
About silicon-aluminum polymeric material, it is the preparation method of the silicon-aluminum polymeric material of raw material with flyash that patent 200510077649 discloses a kind of, and patent 200510034445 discloses a kind of alkali-activated-carbonate/slag compound gel material and preparation method thereof.The used powder of above-mentioned two patents is mainly flyash and slag, and flyash, slag become the important source material of cement concrete industry already, make the two become the secondary resource with higher economic worth.Therefore, has the higher deficiency of raw materials cost with above-mentioned two kinds of feedstock production silicon-aluminum polymeric materials.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of silicon-aluminum polymeric material, has excellent mechanical property, chemical resistance and volume stability.The present invention also provides the preparation method of this silicon-aluminum polymeric material, and the preparation method is simple, adopts trade waste as raw material, and is with low cost, not only can solve the problem of storing up of waste, and realize comprehensive utilization of resources.
For solving the problems of the technologies described above, the invention provides a kind of silicon-aluminum polymeric material, it comprises the calcining mineral processing tailing of bauxite powder of 60～90% weight and the slag powder of 40～10% weight, and the water glass that accounts for calcining mineral processing tailing of bauxite and slag gross weight 20～80%.The active mineral kaolinite that contains 20～60% weight in the used mineral processing tailing of bauxite, used water glass are liquid, and solid content can be 50% weight.
Above-mentioned silicon-aluminum polymeric material, wherein, described incinerating mineral processing tailing of bauxite powder is the calcined material after the mixture of the flyash of mineral processing tailing of bauxite and the lime that accounts for mineral processing tailing of bauxite weight 1～10% or 10～30% is calcined.
Above-mentioned silicon-aluminum polymeric material, wherein, described calcining mineral processing tailing of bauxite powder is that 80 μ m tail over less than 10.0% (be about to powder and cross 80 μ m sieve, the following powder of 80 μ m accounts for more than 90% of gross weight).
Above-mentioned silicon-aluminum polymeric material, wherein, described slag is a slag, the slag powder is that 80 μ m tail over less than 10.0%.
The present invention also provides a kind of preparation method of silicon-aluminum polymeric material, and it comprises the steps:
A calcines mineral processing tailing of bauxite, and calcining back grinding obtains calcining the mineral processing tailing of bauxite powder;
B is even with the calcining mineral processing tailing of bauxite powder mixes of the slag powder of 40～10% weight and 60～90% weight, makes powder;
C adds the water glass that accounts for powder weight 20～80% among the step b, makes silicon-aluminum polymeric material.
The preparation method of above-mentioned silicon-aluminum polymeric material wherein, adds in mineral processing tailing of bauxite among the described step a and accounts for the lime of mineral processing tailing of bauxite weight 1～10% or 10～30% flyash.
The preparation method of above-mentioned silicon-aluminum polymeric material, wherein, the calcining temperature of mineral processing tailing of bauxite is 800～1000 ℃ among the described step a.
The preparation method of above-mentioned silicon-aluminum polymeric material, wherein, the calcination time of mineral processing tailing of bauxite is 0.5～10 hour among the described step a, preferred calcination time is 1～2 hour.
Silicon-aluminum polymeric material of the present invention is a main raw material with calcining mineral processing tailing of bauxite powder, and with the slag powder mixes, be exciting agent with water glass, need not steam press maintenance and just can prepare silicon-aluminum polymeric material at normal temperatures.The starting material that this silicon-aluminum polymeric material adopts mainly are trade wastes, and resources and energy consumption is low, carrying capacity of environment is low, and its raw material sources are convenient simultaneously, and are with low cost; And its glue sand has excellent mechanical property, chemical resistance and volume stability.On the other hand, this material is in application process, can replace the resources and energy consumption height in a lot of fields, what carrying capacity of environment was heavy is the gelling material (for example sulfate resisting Portland cement, acid-proof cement and double-quick cement etc.) of main component with the silicate cement, thereby reduce the production quantity of ordinary Portland cement indirectly, and then reduced the resources and energy consumption level of Cement industry, perhaps can replace products such as organic polymer or pottery, promote the value added of this material, therefore, silicon-aluminum polymeric material of the present invention has a good application prospect.
Embodiment
Describe the present invention in detail below in conjunction with embodiment.
Embodiment 1
With mineral processing tailing of bauxite grinding in ball mill, cross 80 μ m sieve, tail over less than 10.0% gained powders A-1.
With mineral processing tailing of bauxite respectively 800 ℃ of down calcinings 1.0,1.5 and 2.0 hours, cool to room temperature naturally after, take out and in ball mill grinding, cross 80 μ m and sieve, tail over less than 10.0%, obtain powders A-2, powders A-3 and powders A-4 respectively.
In order to verify the activity of this example calcining mineral processing tailing of bauxite powder, powders A-1, powders A-2, powders A-3, powders A-4 with 85% weight are raw material, the mistake 80 μ m that mix 15% weight respectively tail over the slag powder less than 10.0%, be 0.45 at water cement ratio, cement mortar rate is that 1:2.5 and water glass volume are preparation sial polymerization mortar under the condition of 60% weight (the water glass add-on accounts for bauxite powder and slag total weight of powder in it), and makes a strength test with reference to standard GB/T17671-1999 regulation.Test result is as shown in table 1.
Table 1
Learn from table 1 data whether mineral processing tailing of bauxite is calcined, the mechanical property of sial polymerization mortar is had remarkably influenced.The high 27.2MPa of 28 days compressive strength rate A-1 of sample A-2 has reached 54.1MPa; The high 30.4MPa of 28 days compressive strength rate A-1 of sample A-3 has reached 57.3MPa; The high 31.1MPa of 28 days compressive strength rate A-1 of sample A-4 has reached 58.0MPa.This shows that calcining is the effective means that improves the mineral processing tailing of bauxite polymerization activity, is that the sial polymerization mortar that main raw material prepares has excellent mechanical property with this example calcining mineral processing tailing of bauxite powder.
Learn from table 1 data, mineral processing tailing of bauxite under 800 ℃ through 1 hour to 2 hours the calcining after, 3 days ultimate compression strength of sial polymerization mortar have surpassed 30MPa, ultimate compression strength had surpassed 50Mpa in 28 days.Calcination time can increase, if but calcination time is long, can increase cost.
Embodiment 2
In mineral processing tailing of bauxite, add the lime that accounts for mineral processing tailing of bauxite weight 1%, it was calcined 1.5 hours down at 800 ℃, 850 ℃, 900 ℃, 950 ℃ and 1000 ℃ respectively, naturally after cooling to room temperature, take out and grinding in ball mill, cross 80 μ m sieve, tail in 10.0% scope, obtain powder B-1, powder B-2, powder B-3, powder B-4 and powder B-5.
Powder B-1, powder B-2, powder B-3, powder B-4, powder B-5 with 75% weight are raw material, the mistake 80 μ m that mix 25% weight respectively tail over the slag powder less than 10.0%, be 0.45 at water cement ratio, cement mortar rate is that 1:2.5 and water glass volume are preparation sial polymerization mortar under the condition of 70% weight (the water glass add-on accounts for above-mentioned total weight of powder in it), and makes a strength test with reference to standard GB/T17671-1999 regulation.Test result is as shown in table 2.
Table 2
Learn that from table 2 data calcining is after 1.5 hours down at 800 ℃～1000 ℃ for mineral processing tailing of bauxite, 3 days ultimate compression strength of sial polymerization mortar have all surpassed 30MPa, and 28 days ultimate compression strength has all surpassed 50MPa, illustrates that 800 ℃～1000 ℃ calcining temperature suits.
Embodiment 3
In mineral processing tailing of bauxite, add the flyash account for its weight 20%, 850 ℃ of calcinings 5 hours down, cool to room temperature naturally after, take out and in ball mill grinding, cross 80 μ m and sieve, tail over less than 10.0%, obtain powder.
Get 60 kilograms in the above-mentioned powder that makes, 40 kilograms in slag powder, the two mixes and obtains powder C-1.Get 70 kilograms in the above-mentioned powder that makes, 30 kilograms in slag powder, the two mixes and obtains powder C-2.Get 80 kilograms in the above-mentioned powder that makes, 20 kilograms in slag powder, the two mixes and obtains powder C-3.Get 90 kilograms in the above-mentioned powder that makes, 10 kilograms in slag powder, the two mixes and obtains powder C-4.Wherein the slag powder is crossed 80 μ m and is tailed over less than 10.0%.At the water glass volume is under the condition of 50% weight (the water glass add-on accounts for the weight of above-mentioned powder in it), set water cement ratio and be 0.45, cement mortar rate is 1:2.5, with powder material B-1, B-2, B-3, B-4 is the material forming mortar, and makes a strength test with reference to standard GB/T17671-1999 regulation.Test result is as shown in table 3.
Table 3
Learn from table C data, after this example is calcined the mineral processing tailing of bauxite powder and an amount of slag powder (10% to 40% weight) is mixed, excite down at water glass, 28 days ultimate compression strength of gained silicon-aluminum polymeric material sample have all surpassed 50MPa, illustrate that this routine silicon-aluminum polymeric material for preparing has good mechanical property.
Embodiment 4
In mineral processing tailing of bauxite, add the flyash account for its weight 30%, 900 ℃ of calcinings 10 hours down, cool to room temperature naturally after, take out and in ball mill grinding, cross 80 μ m and sieve, tail over less than 10.0%, obtain powder.
Get 70 kilograms in the above-mentioned powder that makes, cross 80 μ m and tail over less than 30 kilograms in 10.0% slag powder, the two mixes and obtains powder D.Set water cement ratio and be 0.45, cement mortar rate is 1:2.5, make a strength test with reference to standard GB/T17671-1999 regulation.Sample D-1, D-2, D-3, D-4 are that water glass volume (the water glass add-on is to account for powder D weight) is respectively 50% weight, 60% weight, 70% weight, 80% weight.Test result is as shown in table 3.
Table 4
Being known by table 4, is main raw material with this example calcining mineral processing tailing of bauxite powder, under the water glass of 50%～80% weight excites, and the good mechanical performance of gained silicon-aluminum polymeric material, its 28 days ultimate compression strength have all surpassed 50MPa.
Embodiment 5
In mineral processing tailing of bauxite, add the flyash account for its weight 10%, with it 950 ℃ of calcinings 1 hour down, cool to room temperature naturally after, take out and in ball mill grinding, cross 80 μ m and sieve, tail over less than 10.0%, obtain powder.
Get 60 kilograms in the above-mentioned powder that makes, cross 80 μ m and tail over less than 40 kilograms in 10.0% slag powder, the two mixes and obtains powder E.Set water cement ratio and be 0.45, cement mortar rate is 1:2.5, the moulding normal curing is torn open after 1 day and is touched, two groups of test blocks are inserted respectively in the water and 3% metabisulfite solution in the normal temperature maintenance, carry out intensity experiment during maintenance to 28 day, with the sulphate-corrosion resistance energy of checking silicon-aluminum polymeric material.The sulphate-corrosion resistance of sample can characterize with coefficient k against corrosion, the ratio of 28 days folding strengths that 28 days folding strengths that coefficient k against corrosion equals 3% metabisulfite solution maintenance and water are supported.Sample E-1, E-2 is for being the silicon-aluminum polymeric material that main raw material prepares with this example calcining mineral processing tailing of bauxite powder, its water glass volume is respectively 20%, 40% weight (add-on of water glass is to account for the weight of powder E); Sample E-3 is that strength grade is 52.5 sulfate resisting Portland cement sample.Test result is as shown in table 5.
Table 5
Table 5 data show, the coefficient k against corrosion of E-1, E-2 sample is all very high, even be higher than the coefficient against corrosion of sulfate resisting Portland cement (E-3), and its ultimate compression strength goes up not down after 3% metabisulfite solution soaks 28 days, and the silicon-aluminum polymeric material of this explanation gained of the present invention has excellent sulphate-corrosion resistance energy.
Embodiment 6
In mineral processing tailing of bauxite, add the lime account for its weight 5%, with it 1000 ℃ of calcinings 0.5 hour down, cool to room temperature naturally after, take out and in ball mill grinding, cross 80 μ m and sieve, tail over less than 10.0%, obtain powder.
Get 80 kilograms in the above-mentioned powder that makes, cross 80 μ m and tail over less than 20 kilograms in 10.0% slag powder, the two mixes and obtains powder F.Set water cement ratio and be 0.45, cement mortar rate is 1:2.5, mix the water glass (the water glass add-on is to account for the weight of powder F) of 40%, 50% weight respectively, normal curing is torn open after 1 day and is touched after the moulding, and sample divides four groups each 6 to insert pH respectively be in 7.0 the water and pH is respectively in 5.0,3.0,1.0 the sulphuric acid soln and soaks.In immersion process, make pH value remain on set(ting)value with the alkali of separating out with sample in the sulphuric acid soln of 0.5mo1/L every day.After being dipped to 28 days, take out sample, observe outward appearance, carefully wash each specimen surface with clear water then, wipe away and weigh after doing and carry out strength test, with the acid resistance of checking sample.To be that the intensity and the weight of the sample of maintenance in 7.0 the water is 100% in the pH value, calculate the weight and the tenacity residue ratio that under other acidic conditions, soak sample.Sample F-1, F-2 refer to that respectively the water glass volume is the sample of 40%, 50% weight.Experimental result is as shown in table 6.
Table 6
Known that by table 6 even sample is to soak 28 days in 1 the strong acid solution in the pH value, its anti-folding, ultimate compression strength and test block quality all obviously do not descend, this silicon-aluminum polymeric material that illustrates that the present invention makes has the superior acid resistance energy.
Embodiment 7
In mineral processing tailing of bauxite, add the lime account for its weight 10%, with it 850 ℃ of calcinings 1.5 hours down, cool to room temperature naturally after, take out and in ball mill grinding, cross 80 μ m and sieve, tail over less than 10.0%, obtain powder.
Get 70 kilograms in the above-mentioned powder that makes, cross 80 μ m and tail over less than 30 kilograms in 10.0% slag powder, the two mixes and obtains powder G.Set water cement ratio and be 0.45, cement mortar rate is 1:2.5, mix the water glass (the water glass add-on is to account for the weight of powder G) of 20%, 30% weight respectively, with reference to the drying shrinkage of JC/T603-1995 mensuration sample, to verify the volume stability of preparation-obtained material.Sample G-1, G-2 refer to that respectively the water glass volume is the sample of 20%, 30% weight, and sample G-3 is an ordinary Portland cement in the same old way.Experimental result is as shown in table 7.
Table 7
As can be seen from Table 7, the accumulations in 28 days of sample G-1, G-2 are shunk with ordinary Portland cement (G-3) similar, all less than 0.1wt%, and engineering demands.Therefore, obtain silicon-aluminum polymeric material with the present invention and have volume stability preferably.
Claims (10)
1, a kind of silicon-aluminum polymeric material, it comprises the calcining mineral processing tailing of bauxite powder of 60～90% weight and the slag powder of 40～10% weight, and the water glass that accounts for calcining mineral processing tailing of bauxite and slag gross weight 20～80%.
2, silicon-aluminum polymeric material as claimed in claim 1, wherein, described incinerating mineral processing tailing of bauxite powder is the calcined material after the mixture of the flyash of mineral processing tailing of bauxite and the lime that accounts for mineral processing tailing of bauxite weight 1～10% or 10～30% is calcined.
3, silicon-aluminum polymeric material as claimed in claim 1 or 2, wherein, described calcining mineral processing tailing of bauxite powder is that 80 μ m tail over less than 10.0%.
4, silicon-aluminum polymeric material as claimed in claim 1 or 2, wherein, described slag is a slag.
5, silicon-aluminum polymeric material as claimed in claim 1 or 2, wherein, described slag powder is that 80 μ m tail over less than 10.0%.
6, the preparation method of the described silicon-aluminum polymeric material of a kind of claim 1, it comprises the steps:
A calcines mineral processing tailing of bauxite, and calcining back grinding obtains calcining the mineral processing tailing of bauxite powder;
B is even with the calcining mineral processing tailing of bauxite powder mixes of the slag powder of 40～10% weight and 60～90% weight, makes powder;
C adds the water glass that accounts for powder weight 20～80% among the step b, makes silicon-aluminum polymeric material.
7, preparation method as claimed in claim 6 wherein, adds in mineral processing tailing of bauxite among the described step a and accounts for the lime of mineral processing tailing of bauxite weight 1～10% or 10～30% flyash, calcines afterwards.
8, as claim 6 or 7 described silicon-aluminum polymeric materials, wherein, the calcining temperature of mineral processing tailing of bauxite is 800～1000 ℃ among the described step a.
9, as claim 6 or 7 described silicon-aluminum polymeric materials, wherein, the calcination time of mineral processing tailing of bauxite is 0.5～10 hour among the described step a.
10, silicon-aluminum polymeric material as claimed in claim 9, wherein, the calcination time of mineral processing tailing of bauxite is 1～2 hour among the described step a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102249827A CN101412596A (en) | 2008-10-29 | 2008-10-29 | Silicon-aluminum polymeric material and preparation thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849973A (en) * | 2012-09-20 | 2013-01-02 | 中国建筑材料科学研究总院 | Desert aeolian sand separated feldspar based alkali-activated cementing material and preparation method thereof |
| CN106830796A (en) * | 2017-01-22 | 2017-06-13 | 中国铝业股份有限公司 | A kind of method that utilization bauxite gangue prepares light heat insulating material |
| WO2019012218A1 (en) * | 2017-07-11 | 2019-01-17 | Vicat | New construction material prepared from a new pozzolanic material |
| CN109836115A (en) * | 2019-04-02 | 2019-06-04 | 中国科学院过程工程研究所 | A kind of preparation method of slip casting packing material |
-
2008
- 2008-10-29 CN CNA2008102249827A patent/CN101412596A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849973A (en) * | 2012-09-20 | 2013-01-02 | 中国建筑材料科学研究总院 | Desert aeolian sand separated feldspar based alkali-activated cementing material and preparation method thereof |
| CN106830796A (en) * | 2017-01-22 | 2017-06-13 | 中国铝业股份有限公司 | A kind of method that utilization bauxite gangue prepares light heat insulating material |
| WO2019012218A1 (en) * | 2017-07-11 | 2019-01-17 | Vicat | New construction material prepared from a new pozzolanic material |
| FR3068965A1 (en) * | 2017-07-11 | 2019-01-18 | Vicat | NEW CONSTRUCTION MATERIAL PREPARED FROM A NEW POUZZOLANIC MATERIAL |
| US11230496B2 (en) | 2017-07-11 | 2022-01-25 | Vicat | Construction material prepared from a new pozzolanic material |
| CN109836115A (en) * | 2019-04-02 | 2019-06-04 | 中国科学院过程工程研究所 | A kind of preparation method of slip casting packing material |
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Open date: 20090422 |