CN106007434B - A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite and preparation method thereof - Google Patents

A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite and preparation method thereof Download PDF

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CN106007434B
CN106007434B CN201610355938.4A CN201610355938A CN106007434B CN 106007434 B CN106007434 B CN 106007434B CN 201610355938 A CN201610355938 A CN 201610355938A CN 106007434 B CN106007434 B CN 106007434B
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weight
titanium slag
alkali
parts
baking
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CN106007434A (en
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李军
卢忠远
侯莉
罗健
牛云辉
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Southwest University of Science and Technology
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Southwest University of Science and Technology
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02Agglomerated materials, e.g. artificial aggregates
    • C04B18/021Agglomerated materials, e.g. artificial aggregates agglomerated by a mineral binder, e.g. cement
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02Agglomerated materials, e.g. artificial aggregates
    • C04B18/027Lightweight materials

Abstract

The invention discloses a kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, it is characterized in that:It is made of 100 parts by weight of high-titanium slag micro mist, the mixing of the component raw material of 0~10 parts by weight of 12.5~30 parts by weight of alkali activating agent solution, 0.5~10 parts by weight of pore creating material and water;Preparation method is:High-titanium slag micro mist is placed in granulating disc and is stirred, forms homodisperse powder;Pore creating material, water and alkali activating agent solution are sequentially added, stirs, be granulated, be shaped to blank;The alkali activating agent solution is waterglass;Blank is conserved into 28d under natural environmental condition, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.Using the present invention, without high temperature sintering when preparing alkali-activated carbonatite high-titanium slag baking-free ceramicite, can large dosage using high-titanium slag micro mist, it is product lightweight, high-strength, there is simple for process, at low cost, energy saving, low-carbon environment-friendly.

Description

A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite and preparation method thereof
Technical field
The invention belongs to construction material and its preparations, are related to a kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite and its preparation side Method.Baking-free ceramicite prepared by the present invention is suitable for construction material.
Background technology
High-titanium slag is to utilize a kind of TiO generated after the v-bearing titanomagnetite smelting pig iron2Industry of the content more than 15% Solid waste, due to the TiO in its composition2Mostly exist with stable perovskite structure mineral, calcium activated, silicon, aluminium component exist In glass solid solution, cause its gelation activity component chemical reaction rate slow, activity reduces.High-titanium slag is applied to Building wood Material field is the most effective means for realizing its scale comprehensive utilization.However, when high-titanium slag is blended as mixing material or mineral Material cement concrete volume reach 10% and it is above after can significantly reduce product strength.At present, high-titanium slag is in construction material In do not obtain the utilization of mass efficient always, volume of cargo in storage just reaches 200,000,000 tons or more, and annual also with 2,000 in China's estimation Ten thousand tons of discharge capacity continues to increase, and not only occupies large amount of land resources, also causes serious destruction to local environment, because This, it is necessary to is adequately using high-titanium slag, to reduce local environment pressure.
Haydite is one kind of artificial lightweight aggregate, according to standard GB/T/T13431.1-2010《Light-weight aggregate and its experiment side Method first part:Light-weight aggregate》Regulation:Light-weight aggregate is that bulk density is not more than 1200kg/m3Thick, fine aggregate general name;People Light-weight aggregate is made to refer to using the processed granulation of inorganic material, high-temperature roasting and manufactured light coarse aggregate (haydite etc.) and light fine aggregate (pottery sand etc.).Bulk density, cylindrical compress strength and 1h water absorption rates are the major parameters for examining haydite quality and performance, and standard requires: Haydite bulk density is generally in 100~1200kg/m3;According to bulk density difference, cylindrical compress strength is generally in 0.2~5MPa;Root According to bulk density difference, 1h water absorption rate≤30%.The external appearance characteristic of haydite is largely rounded, oval or in irregular rubble Shape;Haydite surface is one layer of hard shell, this layer of shell there is water proof to protect gas effect, and play a supporting role;Haydite Inside is in cellular structures, and mainly gas is wrapped into shell and is formed.Just because of the above-mentioned characteristic of haydite, make it With lightweight, the excellent performance such as high-strength, fire resistance is good, durability is good, haydite is mainly used for that natural aggregate is replaced to prepare at present Light aggregate concrete.In the prior art, haydite is mostly slug type, the primary raw material clay of production, the resource exploitations such as shale by It is limited to country, carries out the production of waste residue class slug type haydite more because in the industry;Slug type haydite is although using all types of industries Waste residue, but its preparation needs high temperature sintering, energy consumption is huge, to reduce energy consumption, the industrial residues such as flyash, sludge, slag also by Research is used to prepare baking-free type haydite, but to be generally aided with cement as major gelled material.
Have not yet to see the document report that baking-free ceramicite is directly prepared using alkali-activated carbonatite high-titanium slag.
Invention content
The purpose of the present invention be intended to overcome in the prior art high-titanium slag activity is low, be difficult in cement concrete directly profit With and slug type haydite complex process, the deficiency of high energy consumption, a kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite and its preparation are provided Method.Using the present invention, the building materials application approach of high-titanium slag has on the one hand been opened up, has on the other hand effectively reduced haydite production Consumption to resource and the energy.
Present disclosure is:A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, it is characterized in that:By high-titanium slag micro mist 100 The component of parts by weight, 0~10 parts by weight of 12.5~30 parts by weight of alkali activating agent solution, 0.5~10 parts by weight of pore creating material and water Raw material mixing composition:
The alkali activating agent solution be waterglass, modulus of water glass M=1~2.
In present disclosure:The pore creating material can be aluminium powder or/and hydrogen peroxide, which is H2O2Weight The H of percent concentration >=30%2O2Aqueous solution.
In present disclosure:Specific surface area >=350m of the high-titanium slag micro mist2/ kg, the high-titanium slag micro mist Main chemical compositions and weight percent composition for TiO215%~25%, CaO 20~40%, MgO 6~10%, SiO2 15~32%, Al2O310~17%.
In present disclosure:The waterglass can be sodium silicate or/and potassium water glass, the waterglass it is main Chemical composition and weight percent composition are SiO220.77~27.98%, Na2O or/and K2O 12.45~34.76%, H2O 43.06~63.44%.
In present disclosure:The alkali-activated carbonatite high-titanium slag baking-free ceramicite is the spheric granules that grain size is 10~16mm, Bulk density is 653-695kg/m3, cylindrical compress strength 3.35-5.29MPa, 1h water absorption rate < 10%;The high titanium ore of alkali-activated carbonatite Slag baking-free ceramicite dense surface, internal void are flourishing, and properties meet GB/T13431.1-2010《Light-weight aggregate and its experiment side Method first part:Light-weight aggregate》Artificial lightweight aggregate, the industrial residue light-weight aggregate cylindrical compress strength of defined 700 grades of density rating be not low It is not more than 10% requirement in 3.0MPa, 1h water absorption rate.
The present invention another content be:A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, it is characterized in that step For:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, it is (slow) successively to add in the pore creating material of 0.5~10 parts by weight, the water of 0~10 parts by weight, 12.5~30 parts by weight Alkali activating agent solution, stir, be granulated, be shaped to blank;
The alkali activating agent solution be waterglass, modulus of water glass M=1~2;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
In another content of the present invention:The pore creating material can be aluminium powder or/and hydrogen peroxide, which is H2O2's The H of weight percent concentration >=30%2O2Aqueous solution.
In another content of the present invention:Specific surface area >=350m of the high-titanium slag micro mist2/ kg, the high-titanium slag Main chemical compositions and the weight percent composition of micro mist are TiO215%~25%, CaO 20~40%, MgO 6~ 10%th, SiO215~32%, Al2O310~17%.
In another content of the present invention:The waterglass can be sodium silicate or/and potassium water glass, the waterglass Main chemical compositions and weight percent composition are SiO220.77~27.98%, Na2O or/and K2O 12.45~ 34.76%th, H2O 43.06~63.44%.
Such as:The alkali activating agent solution is sodium silicate, modulus of water glass M=1.5, main chemical compositions and weight Percentage composition is SiO222.88%th, Na2O 15.76%, H2O 61.36%.
In another content of the present invention:The alkali-activated carbonatite high-titanium slag baking-free ceramicite is spherical that grain size is 10~16mm Grain, bulk density 653-695kg/m3, cylindrical compress strength 3.35-5.29MPa, 1h water absorption rate < 10%;The alkali-activated carbonatite is high Titanium slag baking-free ceramicite dense surface, internal void are flourishing, and properties meet GB/T13431.1-2010《Light-weight aggregate and its examination Proved recipe method first part:Light-weight aggregate》Artificial lightweight aggregate, the industrial residue light-weight aggregate cylindrical compress strength of defined 700 grades of density rating Not less than the requirement that 3.0MPa, 1h water absorption rate are not more than 10%.
Compared with prior art, the present invention has following features and advantageous effect:
(1) present invention is used, contains CaO, Al in high-titanium slag2O3、SiO2Etc. components, and Al2O3、SiO2And part CaO Be present in vitreum, glass reticular structure disintegrates under the action of sodium potassium water glass strong base solution, release activity from Son or ionic group form hydrated calcium silicate (C-S-H) gel, aquation sodium (potassium) calcium sial through solving the processes such as poly- reconstruct-polymerization The hydrated products such as gel (N-K-C-A-S-H), aquation sodium (potassium) silica-alumina gel (N-K-A-S-H), form the high titanium ore of alkali-activated carbonatite Refuse lac gel material matrix;Meanwhile aluminium powder, hydrogen peroxide are introduced in alkali-activated carbonatite high-titanium slag matrix, aluminium powder, hydrogen peroxide are in highly basic body Following reaction quickly occurs in system:Al+OH-+H2O→AlO2 -+H2↑, 2H2O2→2H2O+O2↑, the gas discharged is fixed on alkali It excites in high-titanium slag matrix;The baking-free ceramicite of internal porous is formd after condensation hardening;
(2) using the present invention, reacted with the raw material with pozzolanic activity or latent hydraulicity using alkali-activator and Generate a kind of cementitious material.It is excellent that it has that condensation setting rate is fast, early strength is high, corrosion-resistant, high temperature resistant, energy consumption are low etc. Point.High-titanium slag is excited using alkali-activator, the rapidly dissolvable vitreum of strong basicity component will be in high-titanium slag glass solid solution Calcium, silicon, the release of aluminium active component, and react with basic component, formation some strength.In addition, under strongly alkaline conditions, aluminium powder Or/and can react rapidly under hydrogen peroxide room temperature, hydrogen or oxygen are discharged, plays the role of pore-creating.With reference to aluminium powder and double The alkali-activated carbonatite active function of bleed pore-creating effect and high-titanium slag of the oxygen water under basic conditions, can be prepared unburned pottery Grain;
(3) compared with existing slug type haydite, something in common is baking-free ceramicite of the present invention:The two shape is identical, is circle Shape, ellipse, irregular rubble shape etc.;Bulk density is close;Cylindrical compress strength and the requirement of 1h water absorption rates are identical, are marked according to country Quasi- GB/T13431.1-2010《Light-weight aggregate and its test method first part:Light-weight aggregate》It carries out;Purposes is identical with occupation mode; Granulating and forming technique is identical;It is a difference in that:Green body maintaining process is different, is needed after slug type haydite green body granulating and forming by roasting Firing technique, and both baking-free ceramicite green body uses natural curing, steam curing and steam press maintenance more, this is maximum is not Together;Pore-creating mode is different, and slug type haydite is generally using pyrolytic bleed mode, and baking-free ceramicite uses room temperature bleed more; Slug type haydite no longer increases using rear intensity, and baking-free ceramicite aquation can carry out for a long time, and as age extends, intensity is still slow It is slow to increase;Comparison as it can be seen that baking-free ceramicite have do not mix clay, largely utilize industrial residue;Without high temperature sintering, low energy consumption; Raw material sources are extensive, and kind can be adjusted according to raw material;Technique and equipment are simple, and investment is small, and easy to implement, production cost is low, effect The advantages that benefit is good, quality and performance suitable with slug type haydite.Therefore, baking-free ceramicite is expected to become artificial lightweight aggregate future development Mainstream;
(4) using the present invention, large dosage uses high-titanium slag micro mist, and without adding cement, lime, gypsum etc., other are gelled Material directly excites high-titanium slag, conducive to the industrial scale application of high-titanium slag using alkali activating agent solution;With reference to alkali-activated carbonatite Reaction is acted on pore creating material room temperature bleed pore-creating, obtains baking-free lightweight haydite, without high temperature sintering, greatly reduces haydite production Energy consumption;Alkali-activated carbonatite high-titanium slag baking-free ceramicite dense surface, internal void is flourishing, and high-strength light is mixed available for preparing lightweight aggregate Solidifying soil is the green building productions that country encourages;
(5) product preparation process of the present invention is simple, easy to operate, at low cost, energy saving, low-carbon environment-friendly;It is comprehensive from high-titanium slag It closes utilization and haydite producing technology, economy and environmental protection angle is set out, the present invention will be with great society, economy and ring Border benefit, it is highly practical.
Specific embodiment
The invention will be further described, but is not to be construed as to the scope of the present invention for example given below plan Limitation, some nonessential improvement and tune that person skilled in art makes the present invention according to the content of the invention described above It is whole, still fall within protection scope of the present invention.
Embodiment 1:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:The high-titanium slag micro mist of 100 parts by weight, 12.5 The water mixing composition of the alkali activating agent solution of parts by weight, the pore creating material of 0.5 parts by weight and 10 parts by weight.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) it is molten that it is slowly added to the pore creating material of 0.5 parts by weight, the water of 10 parts by weight, the alkali-activator of 12.5 parts by weight successively Liquid stirs, is granulated, is molded into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 2:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:High-titanium slag micro mist, 20 weights of 100 parts by weight Measure the water mixing composition of the alkali activating agent solution of part, the pore creating material of 1.5 parts by weight and 2.5 parts by weight.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) be slowly added to successively the pore creating material of 1.5 parts by weight, the water of 2.5 parts by weight, 20 parts by weight alkali activating agent solution, It stirs, be granulated, be molded into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 3:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:High-titanium slag micro mist, 30 weights of 100 parts by weight Measure the alkali activating agent solution of part and the pore creating material mixing composition of 2 parts by weight.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) it is slowly added to the pore creating material of 2 parts by weight, the alkali activating agent solution of 30 parts by weight successively, stirs, be granulated, be molded into Blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 4:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:The high-titanium slag micro mist of 100 parts by weight, 17.5 The alkali activating agent solution of parts by weight and the pore creating material of 2.5 parts by weight mixing composition.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) be slowly added to the pore creating material of 2.5 parts by weight, the alkali activating agent solution of 17.5 parts by weight successively, stirring, be granulated, into Type is into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 5:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:The high-titanium slag micro mist of 100 parts by weight, 17.5 The alkali activating agent solution of parts by weight and the pore creating material of 5 parts by weight mixing composition.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) it is slowly added to the pore creating material of 5 parts by weight, the alkali activating agent solution of 17.5 parts by weight successively, stirring is granulated, molding Into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 6:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:The high-titanium slag micro mist of 100 parts by weight, 17.5 The alkali activating agent solution of parts by weight and the pore creating material of 7.5 parts by weight mixing composition.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) be slowly added to the pore creating material of 7.5 parts by weight, the alkali activating agent solution of 17.5 parts by weight successively, stirring, be granulated, into Type is into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 7:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:The high-titanium slag micro mist of 100 parts by weight, 17.5 The alkali activating agent solution of parts by weight and the pore creating material of 10 parts by weight mixing composition.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) be slowly added to the pore creating material of 10 parts by weight, the alkali activating agent solution of 17.5 parts by weight successively, stirring, be granulated, into Type is into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 8:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:High-titanium slag micro mist, 20 weights of 100 parts by weight Measure the alkali activating agent solution of part and the pore creating material mixing composition of 5.2 parts by weight.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) it is slowly added to the pore creating material of 5.2 parts by weight, the alkali activating agent solution of 20 parts by weight successively, stirring is granulated, molding Into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 9:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:High-titanium slag micro mist, 20 weights of 100 parts by weight Measure the alkali activating agent solution of part and the pore creating material mixing composition of 5.4 parts by weight.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) it is slowly added to the pore creating material of 5.4 parts by weight, the alkali activating agent solution of 20 parts by weight successively, stirring is granulated, molding Into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Embodiment 10:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by weight, by:High-titanium slag micro mist, 20 weights of 100 parts by weight Measure the alkali activating agent solution of part and the pore creating material mixing composition of 5.6 parts by weight.
Preparation method is:
1) the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
2) it is slowly added to the pore creating material of 5.6 parts by weight, the alkali activating agent solution of 20 parts by weight successively, stirring is granulated, molding Into blank;
3) blank is conserved to 28d under field conditions (factors), obtains baking-free ceramicite of the present invention.
Following table is the alkali-activated carbonatite high-titanium slag baking-free ceramicite performance of Examples 1 to 10:
Embodiment Bulk density (kg/m3) Cylindrical compress strength/MPa 1h water absorption rates/%
Embodiment 1 693 3.67 8.36
Embodiment 2 670 3.57 8.82
Embodiment 3 653 3.35 9.45
Embodiment 4 695 4.75 8.12
Embodiment 5 683 4.63 8.79
Embodiment 6 678 4.27 8.32
Embodiment 7 663 3.64 9.17
Embodiment 8 651 4.68 9.52
Embodiment 9 689 5.29 8.84
Embodiment 10 655 4.42 9.13
Note:TFOT represents asphalt film Heating Experiment-pitch anti-aging property.
Embodiment 11:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by 100 parts by weight of high-titanium slag micro mist, 12.5 weight of alkali activating agent solution Measure part, the component raw material mixing of 0.5 parts by weight of pore creating material forms:
The alkali activating agent solution be waterglass, modulus of water glass M=1.
Embodiment 12:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by 100 parts by weight of high-titanium slag micro mist, 30 weight of alkali activating agent solution Part, the component raw material mixing composition of 10 parts by weight of 10 parts by weight of pore creating material and water:
The alkali activating agent solution be waterglass, modulus of water glass M=2.
Embodiment 13:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by 100 parts by weight of high-titanium slag micro mist, 21 weight of alkali activating agent solution Part, the component raw material mixing composition of 5 parts by weight of 5 parts by weight of pore creating material and water:
The alkali activating agent solution be waterglass, modulus of water glass M=1.5.
Embodiment 14~20:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by 100 parts by weight of high-titanium slag micro mist, alkali activating agent solution 12.5~ The component raw material mixing composition of 0~10 parts by weight of 30 parts by weight, 0.5~10 parts by weight of pore creating material and water:
The alkali activating agent solution is waterglass, any number in modulus of water glass M=1~2;
The specific parts by weight dosage of each component raw material see the table below in each embodiment:
Embodiment 21:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by 100 parts by weight of high-titanium slag micro mist, 18 weight of alkali activating agent solution Part, the component raw material mixing composition of 4 parts by weight of pore creating material:
The alkali activating agent solution is waterglass, any number in modulus of water glass M=1~2;
Embodiment 22:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by 100 parts by weight of high-titanium slag micro mist, 25 weight of alkali activating agent solution Part, the component raw material mixing composition of 7 parts by weight of pore creating material:
The alkali activating agent solution is waterglass, any number in modulus of water glass M=1~2;
Embodiment 23:
A kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, by 100 parts by weight of high-titanium slag micro mist, 15 weight of alkali activating agent solution Part, the component raw material mixing composition of 3 parts by weight of pore creating material:
The alkali activating agent solution is waterglass, any number in modulus of water glass M=1~2;
In above-described embodiment 1~23:The pore creating material can be aluminium powder or/and hydrogen peroxide, which is H2O2Weight Measure the H of percent concentration >=30%2O2Aqueous solution.
In above-described embodiment 1~23:Specific surface area >=350m of the high-titanium slag micro mist2/ kg, the high-titanium slag are micro- Main chemical compositions and the weight percent composition of powder are TiO215%~25%, CaO 20~40%, MgO 6~10%, SiO215~32%, Al2O310~17%.
In above-described embodiment 1~23:The waterglass can be sodium silicate or/and potassium water glass, the waterglass Main chemical compositions and weight percent composition are SiO220.77~27.98%, Na2O or/and K2O 12.45~ 34.76%th, H2O 43.06~63.44%.
In above-described embodiment 1~23:The alkali-activated carbonatite high-titanium slag baking-free ceramicite is spherical that grain size is 10~16mm Grain, bulk density 653-695kg/m3, cylindrical compress strength 3.35-5.29MPa, 1h water absorption rate < 10%;The alkali-activated carbonatite is high Titanium slag baking-free ceramicite dense surface, internal void are flourishing, and properties meet GB/T13431.1-2010《Light-weight aggregate and its examination Proved recipe method first part:Light-weight aggregate》Artificial lightweight aggregate, the industrial residue light-weight aggregate cylindrical compress strength of defined 700 grades of density rating Not less than the requirement that 3.0MPa, 1h water absorption rate are not more than 10%.
Embodiment 23:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, successively it is (slow) add in the pore creating materials of 0.5 parts by weight, 12.5~30 parts by weight alkali activating agent solution, stirring, It is granulated, is shaped to blank;
The alkali activating agent solution be waterglass, modulus of water glass M=1;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
Embodiment 24:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, successively it is (slow) add in the pore creating material of 10 parts by weight, the water of 10 parts by weight, 30 parts by weight alkali activating agent solution, It stirs, be granulated, be shaped to blank;
The alkali activating agent solution be waterglass, modulus of water glass M=2;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
Embodiment 25:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, (slow) the addition pore creating material of 5.5 parts by weight, the water of 5 parts by weight, the alkali-activator of 21.3 parts by weight are molten successively Liquid stirs, is granulated, is shaped to blank;
The alkali activating agent solution be waterglass, modulus of water glass M=1.5;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
Embodiment 26:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, successively it is (slow) add in the pore creating material of 3 parts by weight, the water of 3 parts by weight, 16 parts by weight alkali activating agent solution, stir It mixes, be granulated, be shaped to blank;
The alkali activating agent solution be waterglass, modulus of water glass M=1.2;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
Embodiment 27:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, successively it is (slow) add in the pore creating material of 7 parts by weight, the water of 6 parts by weight, 26 parts by weight alkali activating agent solution, stir It mixes, be granulated, be shaped to blank;
The alkali activating agent solution be waterglass, modulus of water glass M=1.6;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
Embodiment 28:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, successively it is (slow) add in the pore creating materials of 2 parts by weight, 15 parts by weight alkali activating agent solution, stirring is granulated, molding For blank;
The alkali activating agent solution is waterglass, any value in modulus of water glass M=1~2;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
Embodiment 29:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, successively it is (slow) add in the pore creating materials of 8 parts by weight, 23 parts by weight alkali activating agent solution, stirring is granulated, molding For blank;
The alkali activating agent solution is waterglass, any value in modulus of water glass M=1~2;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
Embodiment 30:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, successively it is (slow) add in the pore creating materials of 6 parts by weight, 20 parts by weight alkali activating agent solution, stirring is granulated, molding For blank;
The alkali activating agent solution is waterglass, any value in modulus of water glass M=1~2;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
Embodiment 31~37:
A kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, step are:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
B, it is (slow) successively to add in the pore creating material of 0.5~10 parts by weight, the water of 0~10 parts by weight, 12.5~30 parts by weight Alkali activating agent solution, stir, be granulated, be shaped to blank;
The alkali activating agent solution is waterglass, any value in modulus of water glass M=1~2;
The specific parts by weight dosage of each component raw material see the table below in each embodiment:
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
In above-described embodiment 21~37:The pore creating material can be aluminium powder or/and hydrogen peroxide, which is H2O2's The H of weight percent concentration >=30%2O2Aqueous solution.
In above-described embodiment 21~37:Specific surface area >=350m of the high-titanium slag micro mist2/ kg, the high-titanium slag Main chemical compositions and the weight percent composition of micro mist are TiO215%~25%, CaO 20~40%, MgO 6~ 10%th, SiO215~32%, Al2O310~17%.
In above-described embodiment 21~37:The waterglass is sodium silicate or/and potassium water glass, the waterglass it is main Chemical composition and weight percent composition are SiO220.77~27.98%, Na2O or/and K2O 12.45~34.76%, H2O 43.06~63.44% is the prior art.
Such as:The alkali activating agent solution is sodium silicate, modulus of water glass M=1.5, main chemical compositions and weight Percentage composition is SiO222.88%th, Na2O 15.76%, H2O 61.36%.
In above-described embodiment 21~37:The alkali-activated carbonatite high-titanium slag baking-free ceramicite is spherical that grain size is 10~16mm Grain, bulk density 653-695kg/m3, cylindrical compress strength 3.35-5.29MPa, 1h water absorption rate < 10%;The alkali-activated carbonatite is high Titanium slag baking-free ceramicite dense surface, internal void are flourishing, and properties meet GB/T13431.1-2010《Light-weight aggregate and its examination Proved recipe method first part:Light-weight aggregate》Artificial lightweight aggregate, the industrial residue light-weight aggregate cylindrical compress strength of defined 700 grades of density rating Not less than the requirement that 3.0MPa, 1h water absorption rate are not more than 10%.
In above-described embodiment:Used each raw material is commercial product.
In above-described embodiment:It is especially not dated in used percentage, be weight (quality) percentage or Well known to a person skilled in the art percentages;Described heavy amount (quality) part can be gram or kilogram.
In above-described embodiment:Numerical value such as component raw material dosage etc. are range, and any point is applicable.
The technology contents being not specifically delineated in the content of present invention and above-described embodiment are compared with technology.
Above-described embodiment has only selected different proportion raw material to prepare alkali-activated carbonatite high-titanium slag baking-free ceramicite, and this technology is led The technical staff in domain can easily make different modifications on the basis of these embodiments, and General Principle described herein Performing creative labour need not be passed through by being applied in other embodiments, and therefore, the present invention is not limited to above-described embodiments;Art technology Personnel's announcement according to the present invention, does not depart from improvement that scope made and modification all should be in protection scope of the present invention Within, can it implement described in the content of present invention and with the good result.

Claims (4)

1. a kind of alkali-activated carbonatite high-titanium slag baking-free ceramicite, it is characterized in that:It is molten by 100 parts by weight of high-titanium slag micro mist, alkali-activator The component raw material mixing composition of 0~10 parts by weight of 12.5~30 parts by weight of liquid, 0.5~10 parts by weight of pore creating material and water:
The alkali activating agent solution be waterglass, modulus of water glass M=1~2;
The pore creating material is aluminium powder or/and hydrogen peroxide, which is H2O2Weight percent concentration >=30% H2O2It is water-soluble Liquid;
Specific surface area >=350m of the high-titanium slag micro mist2/ kg, the main chemical compositions and weight of the high-titanium slag micro mist Percentage composition is TiO215%~25%, 20~40 %, MgO 6~10 %, SiO of CaO215~32%, Al2O310~ 17%;
The waterglass is sodium silicate or/and potassium water glass.
2. alkali-activated carbonatite high-titanium slag baking-free ceramicite as described in claim 1, it is characterized in that:The alkali-activated carbonatite high-titanium slag is unburned Haydite is the spheric granules that grain size is 10~16mm, and bulk density is 653-695 kg/m3, cylindrical compress strength 3.35- 5.29MPa, 1h water absorption rate < 10%.
3. a kind of preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite, it is characterized in that step is:
A, the high-titanium slag micro mist of 100 parts by weight is placed in granulating disc and stirred, form homodisperse powder;
Specific surface area >=350m of the high-titanium slag micro mist2/ kg, the main chemical compositions and weight of the high-titanium slag micro mist Percentage composition is TiO215%~25%, 20~40 %, MgO 6~10 %, SiO of CaO215~32%, Al2O310~ 17% ;
B, sequentially add the pore creating material of 0.5~10 parts by weight, the water of 0~10 parts by weight, 12.5~30 parts by weight alkali-activator Solution stirs, is granulated, is shaped to blank;
The alkali activating agent solution be waterglass, modulus of water glass M=1~2;
The pore creating material is aluminium powder or/and hydrogen peroxide, which is H2O2Weight percent concentration >=30% H2O2It is water-soluble Liquid;
The waterglass is sodium silicate or/and potassium water glass;
C, blank under natural environmental condition is conserved into 28d, obtains alkali-activated carbonatite high-titanium slag baking-free ceramicite.
4. the preparation method of alkali-activated carbonatite high-titanium slag baking-free ceramicite as described in claim 3, it is characterized in that:The alkali-activated carbonatite is high Titanium slag baking-free ceramicite is the spheric granules that grain size is 10~16mm, and bulk density is 653-695 kg/m3, cylindrical compress strength be 3.35-5.29MPa, 1h water absorption rate < 10%.
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CN107487996A (en) * 2016-06-12 2017-12-19 西华大学 A kind of high-strength baking-free ceramicite of slag and preparation method thereof
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CN107349879B (en) * 2017-07-04 2020-01-14 武汉理工大学 Method for in-situ synthesis of honeycomb C-A-S-H gel membrane composite porous aggregate
CN107721358B (en) * 2017-10-23 2021-06-04 上海大学 Baking-free ceramsite prepared by mixing slag micro powder with perlite tailings and preparation method of baking-free ceramsite
CN107651924A (en) * 2017-10-26 2018-02-02 西南科技大学 A kind of alkali-activated carbonatite high-titanium slag small-sized hollow building block and preparation method thereof
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