CN110372240A - A kind of room temperature conserves the preparation and application of cheap alkali-excited cement - Google Patents
A kind of room temperature conserves the preparation and application of cheap alkali-excited cement Download PDFInfo
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- CN110372240A CN110372240A CN201910835460.9A CN201910835460A CN110372240A CN 110372240 A CN110372240 A CN 110372240A CN 201910835460 A CN201910835460 A CN 201910835460A CN 110372240 A CN110372240 A CN 110372240A
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- 239000004568 cement Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 32
- 239000011734 sodium Substances 0.000 claims abstract description 21
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 15
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- SXQXMCWCWVCFPC-UHFFFAOYSA-N aluminum;potassium;dioxido(oxo)silane Chemical compound [Al+3].[K+].[O-][Si]([O-])=O.[O-][Si]([O-])=O SXQXMCWCWVCFPC-UHFFFAOYSA-N 0.000 claims abstract description 13
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 12
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 11
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000001354 calcination Methods 0.000 claims abstract description 10
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 36
- 229910052681 coesite Inorganic materials 0.000 claims description 19
- 229910052906 cristobalite Inorganic materials 0.000 claims description 19
- 239000000377 silicon dioxide Substances 0.000 claims description 19
- 229910052682 stishovite Inorganic materials 0.000 claims description 19
- 229910052905 tridymite Inorganic materials 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000000292 calcium oxide Substances 0.000 claims description 18
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 14
- 229910052593 corundum Inorganic materials 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 14
- 239000000395 magnesium oxide Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000010791 quenching Methods 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 235000017550 sodium carbonate Nutrition 0.000 claims description 5
- 239000003818 cinder Substances 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 4
- 238000010348 incorporation Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- KMNWCNNLFBCDJR-UHFFFAOYSA-N [Si].[K] Chemical compound [Si].[K] KMNWCNNLFBCDJR-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 238000000227 grinding Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 26
- 235000012255 calcium oxide Nutrition 0.000 description 13
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 5
- 239000012190 activator Substances 0.000 description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 239000010430 carbonatite Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001669 calcium Chemical class 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/04—Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate cements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses the preparation and application that a kind of room temperature conserves cheap alkali-excited cement, by after a small amount of industrial soda and potassium aluminosilicate sodium and calcareous raw material combined grinding, in 1250 ~ 1300 DEG C of calcinings, simultaneously chilling obtains clinker, clinker is finely ground to be uniformly blended into sodium silicate 3.0 ~ 10.0% that modulus is 1.0 ~ 2.0 after powder up to cement, water is added to mix vibration moulding test block when cement use, room temperature moisture-keeping maintaining 28 days was simultaneously placed in saturated with moisture at first 7 days.Cement prepared by the present invention have the characteristics that raw material extensively, cheap, low consumption and low-carbon emission and performance stablize easily-controllable, have broad application prospects.
Description
Technical field
The invention belongs to cement constructional material and its application field, in particular to the preparation method of alkali-excited cement and its make
Use method.
Background technique
The patent right of portland cement is obtained so far from Englishman J. A Sipuding in 1824, the huge silicate cement of production capacity
The nearly 200 Nian Laiwei development of human civilization of mud has made distinctions won on the battlefield, but the preparation of its main constituent-portland cement clinker is still deposited
It is high in carbon emission, energy consumption and material consumption, dust and sulphur oxides of nitrogen gas is seriously polluted and the outstanding problems such as anti-corrosion durability difference.Alkali
Excited cement has outstanding advantages of early strong, anticorrosive and freeze thawing is good, can largely utilize solid slag, and low-carbon energy-saving is environmentally friendly,
It is considered as one of the novel concrete kind of most possible substitution portland cement.Traditional alkali-excited cement is to be excited with highly basic
Active amorphous aluminosilicate (calcium) salt and the bicomponent cement hardened become the bottle for hindering it to promote and apply there are still many deficiencies
Neck: (1) kaolinic chemical composition is relatively distant from upper crust average value, and resource is more rare, and other alkali-excited cements is main
Raw material such as flyash and blast-furnace cinder etc. are because being largely used as the admixture of portland cement due to rise in price, therefore its cost of material is born
Sorrow；(2) the industrial alkali-activator largely mixed is (by Na2O meter accounts for 3 ~ 14wt%) keep its cost high, and be easy to the accumulation of salt in the surface soil and
Influence durability；(3) the intrinsic composition variability of industrial residue make with the alkali-excited cement performance of its primary raw material preparation with
Preparation process is difficult to stablize regulation and standardization.Patent CN102730996A discloses a kind of preparation of one pack system alkali-excited cement
Method, being will be containing SiO2、Al2O3950 DEG C~1200 DEG C heat preservations are blended in the solid material and alkali of CaO to calcine, and are ground again after cooling
Mill obtains cement, the Behavior of Hardened Cement Paste that when use will be hardened after the direct aquation of cement powder in 50~80 DEG C of moisture-keeping maintainings.But the water
Na in mud2O+0.658K2O content is 6~25%, is not reduced compared with traditional two-component alkali-excited cement, and alkali metal comes entirely
Derived from expensive industrial alkali salt, although its calcination temperature is lower, its cost is still higher without apparent advantage.Peng Meixun
Deng research (Applied Clay Science, 2017,139:64 ~ 71) show SiO2、Al2O3, CaO, MgO and Na2O's
For mixture clinker obtained by 1200 DEG C or less calcinings mainly by various crystallization phase compositions, aquation is mutually also mainly crystal phase.Due to
Only a small number of crystal phases have gelling, so that the gelling of cement is restricted, this is amorphous phase with cement and aquation body
There is very big difference in good cementing property alkali-excited cement.
Summary of the invention
Ca aluminosilicate igneous fusion chilling is obtained into the blast-furnace cinder based on amorphous glass phase, the latter has very high
Alkali-activated carbonatite gelling.The melting temperature of the latter can be significantly reduced in alkali metal component incorporation ca aluminosilicate raw material and improves its reaction
Activity, alkali-activator volume can also be reduced by preparing alkali-excited cement as active constituent using it, to reduce cost in terms of two.This
A kind of preparation method for being designed to provide room temperature and conserving cheap alkali-excited cement of invention is with glass phase by firing
Main, chemical composition is mainly SiO2、Al2O3、CaO、Na2O and K2The clinker of O prepares the low alkali-activated carbonatite water of alkali-activator consumption
Mud.
To achieve the above object, the technical solution adopted by the present invention are as follows: a kind of room temperature conserves the system of cheap alkali-excited cement
Preparation Method is mixed by industrial soda, calcareous raw material and potassium aluminosilicate sodium raw materials, is levigate to the fineness sieved with 100 mesh sieve entirely, then in oxygen
Change in atmosphere and obtain dry clinker in 1250 ~ 1350 DEG C of fully calcined rear chillings, levigate clinker is thin to 200 mesh screen residue≤10%
Sodium silicate is mixed after degree, and cement is made.
As more specifically embodiment, the potassium aluminosilicate sodium raw materials refer to that chemical composition must contain SiO2、Al2O3、Na2O
And/or K2The solid matter of O, it is desirable that it is in 1100 DEG C of fully oxidized calcined residues, SiO2+Al2O3+Na2O+K2O+
The quality accounting of CaO+MgO is no less than 95.0%, and in SiO2+Al2O3+Na2O+K2In the gross mass of O+CaO+MgO, each component contains
Amount is respectively CaO:0 ~ 5.0%, MgO:0 ~ 2.0%, SiO2: 50.0 ~ 75.0%, Al2O3: 15.0 ~ 35.0%, Na2O+K2O:5.0 ~
11.0%。
As more specifically embodiment, the industrial soda refers to that caustic soda and/or soda ash, volume press contained Na2O with
Mass ratio of the potassium aluminosilicate sodium raw materials after 1100 DEG C of oxidizing roastings is calculated as 0 ~ 2.0%.
As more specifically embodiment, the calcareous raw material refers to the raw material that CaO object phase can be generated when independent calcining,
Volume is calculated as 44.0% ~ 80.0% by contained CaO and mass ratio of the potassium aluminosilicate sodium raw materials after 1100 DEG C of oxidizing roastings.
As more specifically embodiment, the sodium silicate is containing water-soluble SiO2And Na2The raw material of O, volume are pressed
Contained SiO2+Na2The quality of O is calculated as the 3.0% ~ 10.0% of chamotte powder, and the modulus of sodium silicate is 1.0 ~ 2.0.
As more specifically embodiment, chilling is the common water quenching cooling method of blast-furnace cinder chilling after the calcining,
The control of water-quenching water amount is dry anhydrous to the clinker being cooled to room temperature.
The present invention also provides the application methods that a kind of room temperature such as above method preparation conserves cheap alkali-excited cement, first will
Sodium silicate water dissolved dilution is uniformly mixed with chamotte powder after cooling and prepares slurry, forms slurry vibratory compaction to obtain water
Cement paste test block, room temperature moisture-keeping maintaining 28 days.Corresponding liquid-solid ratio need to meet the fluidity of vibratory compaction requirement.
As the embodiment of optimization, before cement paste test block 7 days in the air of saturated humidity room temperature conserve, 7 days it
After continue in moisture or maintenance submerged in water was to 28 days.
As the embodiment of optimization, to meet the synthesis service performance of building element and saving cost, in test block forming
Sandstone aggregate is mixed in preceding cement slurry and prepares concrete, and corresponding liquid-solid ratio need to be to meet workability of concrete and later period to make
It is adjusted with performance.
The beneficial effects of the present invention are:
(1) compared with portland cement, cement of the present invention significantly reduces lime stone requirement and clinker burning temperature, carbon
Discharge, energy consumption and cost can obviously reduce and service performance is substantially suitable.
(2) compared with traditional two-component alkali-excited cement, its industrial soda requirement of cement of the invention is lower and calcining is warm
Degree is also far below the preparation temperature of slag and flyash, so that cement preparation cost is substantially reduced, and the former chemical composition is normal
Passively change with production technology, formula is difficult to regulate and control, and strength character stability is poor, and the chemical composition of the latter and strength character
Regulation can be stablized.
Specific embodiment
Below by specific embodiment, present invention be described in more detail, but the scope of protection of present invention is not limited to
This.
Prepare soda ash, caustic soda, potassium aluminosilicate sodium raw materials and calcareous raw material, wherein potassium aluminosilicate sodium raw materials there are 6 kinds, are day
Right rock mixtures, in 1100 DEG C of calcined residues, SiO2+Al2O3+Na2O+K2The quality accounting of O+CaO+MgO is
96 ~ 98%, remaining chemical composition is mainly Fe2O3With TiO2.With SiO2+Al2O3+Na2O+K2O+CaO+MgO is 100% 6 kinds of calculating
See Table 1 for details for the chemical composition of potassium aluminosilicate sodium raw materials, and each component content meets CaO:0 ~ 5.0%, MgO:0 ~ 2.0%, SiO2: 50.0
~ 75.0%, Al2O3: 15.0 ~ 35.0%, Na2O+K2O:5.0 ~ 11.0%.By soda ash or caustic soda and potassium aluminosilicate sodium and calcareous raw material
It is mixed to get 12 raw mix formulas in proportion, the mixed proportion (see Table 2 for details) of each raw material meets in raw material: soda ash or caustic soda volume
By Na therein2O is calculated as 0 ~ 2.0% in 1100 DEG C of calcined mass ratios with potassium aluminosilicate sodium raw materials, and calcareous raw material has mainly
Ingredient is CaCO3Natural limestone, quick lime, white lime and four kinds of limy carbide slag, volume presses contained CaO and silicon
Potassium aluminate sodium raw materials are calculated as 44.0% ~ 80.0% in 1100 DEG C of calcined mass ratios.By the small abrading-ball of mixture cement experiment
Mill about half an hour, reaching the fineness of powder after grinding can be all by 100 mesh standard sieve.Raw meal powder after will be levigate is in common horse
Not calcining in furnace (air atmosphere).The calcining maximum temperature of each raw material is within the scope of 1250 to 1350 DEG C, in the guarantor of maximum temperature
The warm time is 3 hours.The clinker that calcining terminates to obtain takes out water quenching granulating cooling directly out of furnace, and control water-quenching water amount makes
To cooling clinker be dry anhydrous.The chamotte powder that will be cooled to room temperature is milled to the fineness of 200 mesh sieve margin≤10% and just obtains
Chamotte powder.Incorporation caustic soda adjusts its modulus in industrial waterglass (modulus 3.2), while mixing water and preparing cement paste to reach
Required liquid-solid ratio.It is uniformly mixed in agitator for cement mortar after sodium silicate solution is cooling with chamotte powder, then will
Slurry inserts vibratory compaction in the punching block that specification is 40 × 40 × 36 and forms the test block of prism cement paste, conserves in cement standard
It is conserved in 20 DEG C of air of the humidity greater than 90% in case.Wherein the volume of sodium silicate presses its contained SiO2+Na2O is calculated as ripe
The 3.0% ~ 10.0% of feed powder, the modulus of sodium silicate are that see Table 2 for details by 1.0 ~ 2.0().Test block continuation after hardening demoulding is conserving
It is conserved in case, with 3 days and 28 day age compression strength of the loading velocity detection test block of 2KN/S.By the pressure resistance of test block in table 2
Degree it is found that corresponding cement should be able to basically reach or more than PO42.5 cement strength character.
Claims (9)
1. a kind of room temperature conserves the preparation method of cheap alkali-excited cement, by industrial soda, calcareous raw material and potassium aluminosilicate sodium raw materials
It mixes, is levigate to the fineness sieved with 100 mesh sieve entirely, then being obtained in oxidizing atmosphere in 1250 ~ 1350 DEG C of fully calcined rear chillings
Clinker is dried, cement is made in mixing sodium silicate after the fineness of levigate clinker to 200 mesh screen residue≤10%.
2. the preparation method that room temperature according to claim 1 conserves cheap alkali-excited cement, which is characterized in that described forges
Chilling is the common water quenching cooling method of blast-furnace cinder chilling after burning, and water-quenching water amount control to the clinker being cooled to room temperature is drying
It is anhydrous.
3. the preparation method that room temperature according to claim 1 conserves cheap alkali-excited cement, which is characterized in that the silicon
Potassium aluminate sodium raw materials refer to that chemical composition must contain SiO2、Al2O3、Na2O and/or K2The solid matter of O, it is desirable that it is abundant at 1100 DEG C
In residue after oxidizing roasting, SiO2+Al2O3+Na2O+K2The quality accounting of O+CaO+MgO is no less than 95.0%, and in SiO2+
Al2O3+Na2O+K2In the gross mass of O+CaO+MgO, each component content is respectively CaO:0 ~ 5.0%, MgO:0 ~ 2.0%, SiO2:
50.0 ~ 75.0%, Al2O3: 15.0 ~ 35.0%, Na2O+K2O:5.0 ~ 11.0%.
4. the preparation method of cheap alkali-excited cement is conserved with room temperature described in 3 according to claim 1, which is characterized in that industry
Alkali refers to that caustic soda and/or soda ash, volume press contained Na2O and quality of the potassium aluminosilicate sodium raw materials after 1100 DEG C of oxidizing roastings
The ratio between be calculated as 0 ~ 2.0%.
5. the preparation method of cheap alkali-excited cement is conserved with room temperature described in 3 according to claim 1, which is characterized in that calcareous
Raw material refers to the raw material that CaO object phase can be generated when independent calcining, and volume is by contained CaO and potassium aluminosilicate sodium raw materials in 1100 DEG C of oxygen
Change calcined mass ratio and is calculated as 44.0% ~ 80.0%.
6. the preparation method that room temperature according to claim 1 conserves cheap alkali-excited cement, which is characterized in that the sodium water
Glass is containing water-soluble SiO2And Na2The raw material of O, volume press contained SiO2+Na2The quality of O be calculated as chamotte powder 3.0% ~
10.0%, the modulus of sodium silicate is 1.0 ~ 2.0.
7. the room temperature of method preparation described in a kind of any one according to claim 1 ~ 6 conserves the use of cheap alkali-excited cement
Method, which is characterized in that first by sodium silicate water dissolved dilution, be uniformly mixed after cooling with chamotte powder and prepare slurry, will starched
Body vibratory compaction forms to obtain cement paste test block, and room temperature moisture-keeping maintaining 28 days.
8. the application method that room temperature according to claim 7 conserves cheap alkali-excited cement, which is characterized in that cement paste
Before test block 7 days in the air of saturated humidity room temperature conserve, continue after 7 days in moisture or maintenance submerged in water be to 28
It.
9. room temperature according to claim 7 or 8 conserves the preparation and application of cheap alkali-excited cement, feature exists
In incorporation sandstone aggregate prepares concrete in the cement slurry before test block forming.
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| CN201910512806 | 2019-06-13 | ||
| CN2019105128061 | 2019-06-13 |
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| CN110372240B CN110372240B (en) | 2021-08-10 |
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Cited By (6)
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| CN112592148A (en) * | 2021-01-24 | 2021-04-02 | 湖南科技大学 | Method for preparing structural material by utilizing brick-concrete building solid waste reclaimed sand powder with high doping amount |
| CN112592077A (en) * | 2021-01-24 | 2021-04-02 | 湖南科技大学 | Brick-concrete building waste residue cold-recycling cementing material and use method thereof |
| CN112592147A (en) * | 2021-01-24 | 2021-04-02 | 湖南科技大学 | Preparation and construction method of brick-concrete building waste residue regenerated road base inorganic mixture |
| CN113548823A (en) * | 2021-08-23 | 2021-10-26 | 深圳大学 | Potassium aluminosilicate nanogel precursor additive and application thereof in low-calcium system geopolymer |
| CN118084371A (en) * | 2024-02-24 | 2024-05-28 | 湖南科技大学 | Method for preparing alkali-activated cement by sodium chloride step-by-step calcination method |
| CN118420253A (en) * | 2024-02-24 | 2024-08-02 | 湖南科技大学 | Preparation method of low-carbon universal cement |
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| CN112592077A (en) * | 2021-01-24 | 2021-04-02 | 湖南科技大学 | Brick-concrete building waste residue cold-recycling cementing material and use method thereof |
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| CN112592147B (en) * | 2021-01-24 | 2022-06-24 | 湖南科技大学 | Preparation and construction method of brick-concrete building waste residue regenerated road base inorganic mixture |
| CN112592148B (en) * | 2021-01-24 | 2022-06-28 | 湖南科技大学 | Method for preparing structural material by utilizing brick-concrete building solid waste reclaimed sand powder with high doping amount |
| CN112592077B (en) * | 2021-01-24 | 2022-06-28 | 湖南科技大学 | Brick-concrete building waste residue cold-recycling cementing material and use method thereof |
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| CN118084371A (en) * | 2024-02-24 | 2024-05-28 | 湖南科技大学 | Method for preparing alkali-activated cement by sodium chloride step-by-step calcination method |
| CN118420253A (en) * | 2024-02-24 | 2024-08-02 | 湖南科技大学 | Preparation method of low-carbon universal cement |
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