CN107043273A - A kind of ground polymers foaming light aggregate concrete and preparation method thereof - Google Patents

A kind of ground polymers foaming light aggregate concrete and preparation method thereof Download PDF

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Publication number
CN107043273A
CN107043273A CN201710066531.4A CN201710066531A CN107043273A CN 107043273 A CN107043273 A CN 107043273A CN 201710066531 A CN201710066531 A CN 201710066531A CN 107043273 A CN107043273 A CN 107043273A
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powder
slag
polymers
composite micro
ground
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雷团结
凌贤长
钱元弟
樊传刚
李亚辉
徐华超
雷雅平
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Maanshan MCC 17 Engineering Science and Technology Co Ltd
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Maanshan MCC 17 Engineering Science and Technology Co Ltd
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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
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • 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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/006Compositions 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
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • C04B2111/00525Coating or impregnation materials for metallic surfaces
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/2038Resistance against physical degradation
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, e.g. waterproof or water-repellant materials
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40Porous or lightweight materials
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

The invention discloses a kind of ground polymers foaming light aggregate concrete, the material is by ore slag fly ash composite micro-powder, alkali-activator, inorganic super-light aggregate, high molecular polymer powder, inorganic chopped fiber, hydrogen peroxide CBA, kicker, inorganic porous carrier and foam stabilizer composition, the preparation method of this kind ground polymers foaming light aggregate concrete is that each constituent is carried out into mixing manufacture according to a certain percentage, intensity when existing cement base foamed concrete material is used in soak can be effectively solved significantly to decline, solidify too fast with slag base polymers foam cement, make the problems such as shape bubble and bubble are difficult to grow up in foaming, polymers concrete layer durability is significantly improved with making foaming light-weight aggregate, architectural exterior-protecting construction energy-saving heat preserving and reduction wall deadweight available for low temperature and normal temperature, reduce CO2 discharges, be conducive to improving ecological benefits and economic benefit, construction is extremely facilitated simultaneously, construction cost and material cost are all greatly lowered.

Description

A kind of ground polymers foaming light aggregate concrete and preparation method thereof
Technical field
The invention belongs to insulation material preparing technical field, mixed more specifically to a kind of ground polymers foaming light-weight aggregate Solidifying soil and preparation method thereof.
Background technology
At present, " energy-saving and emission-reduction " are one of important policies of country, therefore the effect of high-performance insulation material seems more It is important.Kiln and hot air duct insulation employ inorganic heat preservation blanket parcel, or ceramic fibre pouring material coating for a long time It is incubated, achieves energy-saving effect obvious to all.Ceramic fibre is a kind of lightweight refracrory of good performance, and it is used Body of heater weight can be mitigated significantly, accelerate the firing rate of thermal kiln furnace.The product strengths such as current ceramic fiber blanket, felt, plate compared with It is low, efflorescence can be produced after use, cause the life-span of cellulosic body of heater reduces relative to brick furnace lining.Existing refractory fibre pouring material (application number 200510038071.1), although employing substantial amounts of short ceramic fibre in castable, it is merely with ceramics The enhancing structure effect of fiber;And wherein the thermal insulation function of castable be then by the granules of polystyrene in castable and The tiny holes that floating bead leaves in post processing are undertaken, therefore do not effectively utilize ceramic fibre excellent heat-insulated guarantor in itself Warm nature energy.CN200810145238.8 patents propose a kind of self-reinforcing type ceramic fibre pouring material and preparation method thereof, carry It is good for a kind of resistance to elevated temperatures, heat-proof quality, and after long-term use in the case of a high temperature, the ceramic fibre in furnace lining is non-chalking Self-reinforcing type ceramic fibre pouring material.The castable can workability and high-temperature stability with stronger.Above-mentioned material is Insulation is thermally shielded by forming the small gas compartment after crisscross intersection between inorfil, therefore is required to substantial amounts of ceramics Fiber, current ceramic fibre either vitreous fibre or polycrystalline fibre, fiber process is required at very high heat Manage needs to consume amount of heat in itself in temperature, fiber manufacturing process.
Foam cement is foamed by admixing to stir foaming agent in cement mortar, or will be admixed foam after foaming agent prefoam The method of cement mortar, obtains cement foam, treats that hardening of cement obtains porous light structures after construction, the structure has preferable Function of heat insulation, using having good effect of energy (building enclosure wall external thermal insulation) in low temperature or normal temperature.Because of water Contain the crystallization water in the hydrated product of mud, once the heated crystallization water is sloughed, then and the insulation construction of foam cement will be broken therewith It is bad, therefore it is heat-insulated to cannot be used for soak.Geo-polymer is first turned into after being excited using sa raw material by alkali-activator Silica, alumina monomer, then polymerize the crystallization in the three-dimensional net structure as silica, alumina macromolecular, structure by monomer again Water remains to maintain complete three-dimensional net structure after losing, and silicon, aluminum oxide have higher high-temperature stability in itself, therefore If porous material can be developed into, it will with function of heat insulation under ideal high temperature applicationss, instead of or part replace making pottery After porcelain fiber heat preservation material, it will with obvious energy-saving and emission-reduction effect.The rate of set of current ground polymers cement is too fast, especially It is the ground polymers cement containing slag, although be used physical foaming method and developed into foamed cement sill (" alkali-activated slag foams by CN201210221049.0 " alkali-activated slag foam cement product and preparation method thereof ", CN201410431394.6 Concrete "), but be not suitable for the bubble formation of chemical blowing and grow up, traditional foam cement can not use lightweight aggregate in addition, Therefore the cubical contraction for obtaining foaming body is too high, and high volume stability is bad.
The content of the invention
Intensity when being used in soak for existing cement base foamed concrete material significantly declines, and slag-based Polymers foam cement solidification in ground is too fast, makes the problems such as shape bubble and bubble are difficult to grow up in foaming, gathers the invention provides a kind of Thing foaming light aggregate concrete and preparation method thereof.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme:
Polymers foaming light aggregate concrete in a kind of ground of the invention, the material is by slag-fly ash composite micro-powder, alkaline excitation It is agent, inorganic super-light aggregate, high molecular polymer powder, inorganic chopped fiber, hydrogen peroxide CBA, kicker, inorganic Porous carrier and foam stabilizer composition.
The alkali-activator accounts for the 2%~12% of the slag-fly ash composite micro-powder quality, preferably 5~10%; The mass ratio of the slag-fly ash composite micro-powder and the inorganic super-light aggregate is (0.5~2):1;The high molecular polymerization Thing powder accounts for the 0.1%~2.5% of the slag-fly ash composite micro-powder quality;The inorganic chopped fiber accounts for the slag-powder The 0.1%~0.5% of coal ash composite micro-powder quality;The hydrogen peroxide CBA accounts for the slag-fly ash composite micro-powder The 2%~5% of quality;The kicker of the CBA accounts for the slag-fly ash composite micro-powder quality 0.05%~0.2%;The mass ratio (5~10) of the slag-fly ash composite micro-powder and inorganic porous carrier:1;The foam stabilizing Agent accounts for the 0.5~2% of the slag-fly ash composite micro-powder quality.
As a preferred technical solution of the present invention, acidity coefficient >=1 of the slag-fly ash composite micro-powder, than Surface area >=450m2/kg, slag and flyash are compound with arbitrary proportion, and flyash passes through activating pretreatment.
As a preferred technical solution of the present invention, the alkali-activator is hydroxide, the silicic acid by alkali metal Any of salt, carbonate or wantonly more than two kinds are composited, specific surface area >=350m2/ of the alkali-activator powder kg。
As a preferred technical solution of the present invention, the high molecular polymer is re-dispersible glue powder, Methyl cellulose More than two kinds of any of plain (CMC), carboxylic propyl methocel (HPMC), polyethylene glycol (PEG) or wantonly are with arbitrary proportion It is compound to constitute.
As a preferred technical solution of the present invention, the light-weight aggregate is by sintering-expanded haydite, expanded perlite coarse granule, day Any of right float stone, permutite, expanded slag particle, expanded glass particle, fly ash float or it is wantonly more than two kinds with Arbitrary proportion is composited, their accumulation unit weight≤300kg/m3, cylindrical compress strength >=2MPa.
As a preferred technical solution of the present invention, the water reducer is that high-efficiency water-reducing agent of poly-carboxylic acid, naphthalene series high-efficiency subtract Any of aqua and HSB aliphatic high-efficiency water reducing agents.
As a preferred technical solution of the present invention, the inorganic chopped fiber is ceramic short fiber, staple glass fibre, ore deposit Cotton short fiber, the length of inorganic chopped fiber is 5~15mm, fibre diameter≤7m.
As a preferred technical solution of the present invention, the mass concentration of the chemical blowing agent hydrogen peroxide is 27.5wt% ~50wt%, preferably 27.5wt%.
As a preferred technical solution of the present invention, the kicker of the CBA is ferric sulfate, sulfuric acid Any of ferrous iron, iron chloride, frerrous chloride, potassium permanganate.
As a preferred technical solution of the present invention, the foam stabilizer of the CBA is gelatin solution, polypropylene It is any in acid amides, polyvinyl alcohol, polypeptide, soluble starch.
As a preferred technical solution of the present invention, the inorganic porous carrier is expanded perlite fine grained, as The carrier I of the CBA and carrier II of alkali-activator, its particle size range be 0.1~1mm, accumulation unit weight 100~ 150kg/m3, water absorption rate >=100%.
The preparation method of a kind of ground polymers foaming light aggregate concrete is comprised the following steps that:
(1) according to match ratio weigh slag-fly ash composite micro-powder, alkali-activator powder, expanded perlite fine grained, High molecular polymer powder, light-weight aggregate, water reducer, inorganic chopped fiber, chemical blowing agent hydrogen peroxide, kicker, foam stabilizer And water, ground polymers, which foams, needs water quality to be 0.6~1.0 with slag-fly ash composite micro-powder mass ratio in prepared by light material;
(2) alkali-activator needed for dispensing is made into the aqueous solution, adds 5%~10% expanded perlite fine grained, make Expanded perlite fine grained is excited agent solution saturation, then will load the expanded perlite fine grained of alkali-activator at 100 DEG C Forced air drying is carried out under the conditions of temperatures above, 0.5~1h of drying time obtains the carrier I for being loaded with alkali-activator, also simultaneously By in the expanded perlite fine grained needed for the remaining dispensing of CBA addition, the carrier for loading chemicalization infusion is directly obtained II;
(3) according to ratio in dispensing, by the high molecular polymer powder in dispensing, inorganic chopped fiber add the slag- In flyash composite micro-powder, 3~10min pre- stirring is first carried out, premixing slag-fly ash composite micro-powder is obtained, then by foam stabilizing Agent and kicker are added in required water, stir into blowing promotor solution;
(4) by the dried carrier I for being loaded with alkali-activator of step (2), add premixing slag obtained by step (3)- In flyash composite micro-powder, stir 3~10min, obtain ground oligomer gel material powder after mixing thoroughly, then by blowing promotor solution and Remaining water needed for dispensing is added thereto after 1~2min of stirring, obtains geopolymer slurry;
(5) according to match ratio weigh light-weight aggregate be added in the geopolymer slurry that step (4) is obtained be stirred it is mixed Close, mixing time is 3~5min, fluidised form light-weight aggregate is made polymers concrete;
(6) the carrier II continuous uniforms that saturation described in step (2) is loaded into chemical blowing agent hydrogen peroxide add step (5) Carry out foam in place in the obtained fluidised form light aggregate concrete mixed slowly, mixing speed now be less than 15 turns/ Minute, 1~2min of mixing time is stood after 2-3min again after stopping stirring, and polymers concrete is smeared with obtaining foaming light-weight aggregate Material or castable.
Above-mentioned foaming light-weight aggregate polymers concrete coating can directly smear construction needing the kiln wall of isothermal holding On the outside of outside and high-temperature gas conveying metallic conduit, 10~50mm of thickness heat insulation coating is formed, and before binder materials final set Progress strikes off troweling construction, is finally hardened to high temperature resistant, heat-insulated, waterproof, corrosion resistant light inorganic heat preserving shell, it is 600 Thermal conductivity factor when DEG C temperatures above is used is less than 0.1W/ (Km), the foaming light-weight aggregate polymers concrete layer it is not easy to crack, forever Do not fall off has the consistent life-span with institute thermal insulation structure.
Above-mentioned foaming light-weight aggregate polymers concrete pouring material can be cast in mould, be hardened to high temperature resistant, heat-insulated, anti- Outer lining leading when 600 DEG C used above in water, corrosion resistant variously-shaped light inorganic heat preserving material bulk, institute's masonry heater body Hot coefficient is less than 0.1W/ (Km), and soak Rotating fields that the foaming light aggregate concrete material is built by laying bricks or stones are easy to crack, never Coming off with the structure being incubated has the consistent life-span.
Compared to prior art, beneficial effects of the present invention are as follows:
(1) with obtaining lightweight polymers insulation construction, acidity coefficient ratio are employed after the foaming of slag powders-coal ash composite micro-powder Slag base polymers is significantly improved, and employ light-weight aggregate and enhancing chopped fiber be combined, therefore obtain insulation construction compare slag Blanket, which protects the high temperature insulation constructions such as mild particulate slag castable, has more preferably volume stability and structural strength, and Durability when 600 DEG C of temperatures above are used is significantly improved.
(2) the use of primary raw material is slag-fly ash composite micro-powder in ground polymers foaming light aggregate concrete of the invention, Industrial solid castoff resource is taken full advantage of, environmental issue is solved, simultaneously polymers is as a class cement replacement, and its is light Matter structure can also be used for the architectural exterior-protecting construction energy-saving heat preserving of low temperature and normal temperature and reduce wall deadweight, reduce CO2 discharges, favorably In raising ecological benefits and economic benefit.
(3) bubble is protected by light-weight aggregate in ground polymers foaming light aggregate concrete of the invention, is difficult to be destroyed, therefore Construction live can be smeared, caking property is strong, smears and be will not fall off after putting on a suit of armour within 50mm thickness, and condensation and setting rate are fast, Final set can be reached by smearing in 3h, and 1.5MPa (unit weight 200kg/m3) to 25.3MPa (unit weight 600kg/m3) can be obtained after 3 days Compression strength, compared with the construction of ceramic fibre blanket, eliminate the constructions such as the anchor of anchoring blanket is hung and shell enhancing is fixed Process, therefore it is extremely convenient to construct, construction cost and material cost are all greatly lowered.
(4) the thin light-weight aggregate in ground polymers foaming light aggregate concrete of the invention, i.e. expanded perlite fine grained be simultaneously It also be used to load alkali-activator, the speed of alkali-activated slag-flyash slows down, make the sudden strain of a muscle of slag base polymers solidifying, quick The unfavorable factors such as reaction are controlled, and being easy to CBA, foaming and shape bubble process can in polymers slurry between light-weight aggregate Control, and whole heat-insulation layer work progress are controllable.
(5) light-weight aggregate used in ground polymers foaming light aggregate concrete of the invention has higher high-temperature stability, Binder materials polymers be slag-fly ash composite micro-powder, a large amount of aluminum-oxygen tetrahedrons and silica formed after alkali-activated carbonatite Tetrahedral network structure, the lightweight hardenite obtained (more than 600 DEG C) after high temperature dehydration remains to keep the inorganic of stabilization Composition and network structure, the structure have a long-term lightweight and soak effect, and the foaming light aggregate concrete of cement base After high temperature dehydration (more than 600 DEG C), mechanical strength can significantly decline, and no longer possess thermal structure effect.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 show the composition table of 3~embodiment of embodiment 6;
Fig. 2 show the dispensing concrete composition material name of 3~embodiment of embodiment 6.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
The present embodiment provides a kind of ground polymers foaming light aggregate concrete, and the material is by slag-fly ash composite micro-powder, alkali Property exciting agent, inorganic super-light aggregate, high molecular polymer powder, inorganic chopped fiber, hydrogen peroxide CBA, foaming promoter Agent, inorganic porous carrier and foam stabilizer composition.
In above-mentioned material composition:Alkali-activator accounts for the 6% of slag powders-coal ash composite micro-powder quality;Slag-fly ash is answered The mass ratio for closing micro mist and inorganic super-light aggregate is 1:1;High molecular polymer powder accounts for slag-fly ash composite micro-powder quality 0.1%;Inorganic chopped fiber accounts for the 0.1% of slag-fly ash composite micro-powder quality;Hydrogen peroxide CBA account for the slag- The 2% of flyash composite micro-powder quality;The kicker of CBA accounts for slag-fly ash composite micro-powder quality 0.05%;Foam stabilizer accounts for the 2% of slag-fly ash composite micro-powder quality;Slag-fly ash composite micro-powder and inorganic porous carrier Mass ratio 1:0.2.
The acidity coefficient of slag-fly ash composite micro-powder is 1.1, and specific surface area 450m2/kg, wherein slag account for 90%, powder Coal ash accounts for 10%, and flyash is grey for the three-level of the levigate activation process of vibromill.
Alkali-activator is NaOH powders, specific surface area >=350m2/kg.
Porous carrier is expanded perlite fine grained, as the carrier I and the carrier II of alkali-activator of CBA, Its particle size range is 0.1~1mm, accumulates unit weight 100kg/m3, water absorption rate is 100%.
High molecular polymer is re-dispersible glue powder.
Light-weight aggregate is sintering-expanded haydite, accumulates unit weight 300kg/m3, cylindrical compress strength 2.1MPa.
Water reducer is high-efficiency water-reducing agent of poly-carboxylic acid.
Inorganic chopped fiber is low alkali glass fiber, and length is 5~15mm, fibre diameter 7m.
The mass concentration of chemical blowing agent hydrogen peroxide is 27.5wt%.
The kicker of the CBA is potassium permanganate.
The foam stabilizer of the CBA is soluble starch solution.
The preparation method that the present embodiment provides a kind of ground polymers foaming light aggregate concrete is comprised the following steps that:
(1) slag-fly ash composite micro-powder, alkali-activator powder, expanded perlite granule, height are weighed according to match ratio Molecularly Imprinted Polymer powder, light-weight aggregate, water reducer, inorganic chopped fiber, chemical blowing agent hydrogen peroxide, kicker, foam stabilizer with And water, ground polymers, which foams, needs water quality to be 0.6 with slag micropowder mass ratio in prepared by light material;
(2) alkali-activator needed for dispensing is made into the aqueous solution, adds 10% expanded perlite fine grained, make expansion precious Pearl rock fine grained is excited agent solution saturation, then will to load the expanded perlite fine grained of alkali-activator warm more than 100 DEG C Forced air drying is carried out under the conditions of degree, drying time 1h obtains the carrier I for being loaded with alkali-activator, while also by chemical blowing In 90% expanded perlite fine grained needed for the remaining dispensing of agent addition, the carrier II for loading chemicalization infusion is directly obtained;
(3) according to ratio in dispensing, by the high molecular polymer powder in dispensing, inorganic chopped fiber add the slag- In flyash composite micro-powder, first carry out 3min pre- stirring, obtain premixing slag-fly ash composite micro-powder, then by foam stabilizer and Kicker is added in required water, stirs into blowing promotor solution;
(4) by the dried carrier I for being loaded with alkali-activator of step (2), add premixing slag obtained by step (3)- In flyash composite micro-powder, 3min is stirred, ground oligomer gel material powder is obtained after mixing thoroughly, then by blowing promotor solution and dispensing Required remaining water is added thereto after stirring 2min, obtains geopolymer slurry;
(5) according to match ratio weigh light-weight aggregate be added in the geopolymer slurry that step (4) is obtained be stirred it is mixed Close, mixing time is 3~5min, fluidised form light-weight aggregate is made polymers concrete;
(6) the carrier II continuous uniforms that saturation described in step (2) is loaded into chemical blowing agent hydrogen peroxide add step (5) In the obtained fluidised form light aggregate concrete mixed slowly, foam in place, mixing time 2min are carried out, then stand 3min Afterwards, with foaming light-weight aggregate polymers concrete coating is obtained.
The foaming light-weight aggregate polymers concrete coating can directly smear construction outside the kiln wall for needing isothermal holding On the outside of side and high-temperature gas conveying metallic conduit, 10~50mm of thickness heat insulation coating is formed, and advance in binder materials final set Row strikes off troweling construction, is finally hardened to high temperature resistant, heat-insulated, waterproof, corrosion resistant light inorganic heat preserving shell, dry weight 250kg/ M3, its thermal conductivity factor when 700 DEG C of temperature are used is less than 0.1W/ (Km), and foaming light aggregate concrete layer is easy to crack, forever Do not fall off has the consistent life-span with institute thermal insulation structure.
Embodiment 2
The present embodiment provides a kind of ground polymers foaming light aggregate concrete, and the material is by slag-fly ash composite micro-powder, alkali Property exciting agent, inorganic super-light aggregate, high molecular polymer powder, inorganic chopped fiber, hydrogen peroxide CBA, foaming promoter Agent, inorganic porous carrier and foam stabilizer composition.
In above-mentioned material composition:Alkali-activator accounts for the 8% of slag-fly ash composite micro-powder quality;Slag micropowder and nothing The mass ratio of machine super-light aggregate is 1:0.8;High molecular polymer powder accounts for the 0.1% of slag-fly ash composite micro-powder quality;Nothing Machine chopped fiber accounts for the 0.1% of slag-fly ash composite micro-powder quality;Hydrogen peroxide CBA accounts for the slag-fly ash and answered Close the 2% of micro mist quality;The kicker of CBA accounts for the 0.05% of slag-fly ash composite micro-powder quality;Foam stabilizing Agent accounts for the 1% of slag-fly ash composite micro-powder quality;The mass ratio 1 of slag-fly ash composite micro-powder and inorganic porous carrier: 0.2。
The acidity coefficient of slag-fly ash composite micro-powder is 1.6, and specific surface area 510m2/kg, wherein slag account for 60%, powder Coal ash accounts for 40%, and flyash passes through mechanical activation.
Alkali-activator is Instant sodium metasilicate powder, specific surface area >=350m2/kg.
Porous carrier is expanded perlite fine grained, as the carrier I and the carrier II of alkali-activator of CBA, Its particle size range is 0.1~1mm, accumulates unit weight 100kg/m3, water absorption rate is 200%.
High molecular polymer is HPMC powders.
Light-weight aggregate is expanded perlite coarse granule, accumulates unit weight 150kg/m3, cylindrical compress strength 1.0MPa.
Water reducer is naphthalene series high-efficiency water-reducing agent.
Inorganic chopped fiber is glass fibre, and length is 5~15mm, fibre diameter 7m.
The mass concentration of chemical blowing agent hydrogen peroxide is 27.5wt%.
The kicker of the CBA is iron chloride.
The foam stabilizer of the CBA is gelatin solution.
The preparation method for a kind of ground polymers foaming light aggregate concrete that the present embodiment is provided is comprised the following steps that:
(1) slag-fly ash composite micro-powder, alkali-activator powder, expanded perlite granule, height are weighed according to match ratio Molecularly Imprinted Polymer powder, light-weight aggregate, water reducer, inorganic chopped fiber, chemical blowing agent hydrogen peroxide, kicker, foam stabilizer with And water, ground polymers, which foams, needs water quality to be 0.8 with slag micropowder mass ratio in prepared by light material;
(2) alkali-activator needed for dispensing is made into the aqueous solution, adds 20% expanded perlite fine grained, make expansion precious Pearl rock fine grained is excited agent solution saturation, then will to load the expanded perlite fine grained of alkali-activator warm more than 100 DEG C Forced air drying is carried out under the conditions of degree, drying time 0.5h obtains the carrier I for being loaded with alkali-activator, while also by chemistry hair In 80% expanded perlite fine grained needed for the remaining dispensing of infusion addition, the carrier for loading chemicalization infusion is directly obtained II;
(3) according to ratio in dispensing, by the high molecular polymer powder in dispensing, inorganic chopped fiber add above-mentioned slag- In flyash composite micro-powder, first carry out 3min pre- stirring, obtain premixing slag-fly ash composite micro-powder, then by foam stabilizer and Kicker is added in required water, stirs into blowing promotor solution;
(4) by the dried carrier I for being loaded with alkali-activator of step (2), add premixing slag obtained by step (3)- In flyash composite micro-powder, 3min is stirred, ground oligomer gel material powder is obtained after mixing thoroughly, then by blowing promotor solution and dispensing Required remaining water is added thereto after stirring 2min, obtains geopolymer slurry.
(5) according to match ratio weigh light-weight aggregate be added in the geopolymer slurry that step (4) is obtained be stirred it is mixed Close, mixing time is 3~5min, fluidised form light-weight aggregate is made polymers concrete.
(6) the carrier II continuous uniforms that saturation described in step (2) is loaded into chemical blowing agent hydrogen peroxide add step (5) In the obtained fluidised form light aggregate concrete mixed slowly, foam in place, mixing time 2min are carried out, then stand 3min Afterwards, with foaming light-weight aggregate polymers concrete pouring material is obtained.
The foaming light-weight aggregate polymers concrete pouring material can be cast in mould, be hardened to high temperature resistant, heat-insulated, waterproof, Corrosion resistant variously-shaped light inorganic heat preserving material, dry weight 200kg/m3, its thermal conductivity factor when 800 DEG C of temperature are used is small In 0.1W/ (Km), the soak not easy to crack, never drop-off of layer and be incubated that the foaming light aggregate concrete material is built by laying bricks or stones Structure there is the consistent life-span.
3~embodiment of embodiment 6
Embodiment 3 obtain foaming light-weight aggregate polymers concrete coating can directly smear construct needing isothermal holding On the outside of kiln wall and on the outside of high-temperature gas conveying metallic conduit, 10~50mm of thickness heat insulation coating is formed, and in gelling material Carry out striking off troweling construction before material final set, be finally hardened to high temperature resistant, heat-insulated, waterproof, corrosion resistant light inorganic heat preserving shell, Dry weight 350kg/m3, its thermal conductivity factor when 700 DEG C of temperature are used is less than 0.1W/ (Km), foaming light aggregate concrete layer Not easy to crack, never drop-off has the consistent life-span with institute thermal insulation structure.
Embodiment 4 obtain foaming light-weight aggregate polymers concrete pouring material can be cast in mould, be hardened to high temperature resistant, Heat-insulated, waterproof, corrosion resistant variously-shaped light inorganic heat preserving material, dry weight 400kg/m3, it is when 800 DEG C of temperature are used Thermal conductivity factor is less than 0.1W/ (Km), and the soak layer that the foaming light aggregate concrete material is built by laying bricks or stones is not easy to crack, never take off Fall has the consistent life-span with the structure being incubated.
Embodiment 5 obtain foaming light-weight aggregate polymers concrete coating can directly smear construct needing isothermal holding On the outside of kiln wall and on the outside of high-temperature gas conveying metallic conduit, 10~50mm of thickness heat insulation coating is formed, and in gelling material Carry out striking off troweling construction before material final set, be finally hardened to high temperature resistant, heat-insulated, waterproof, corrosion resistant light inorganic heat preserving shell, Dry weight 250kg/m3, its thermal conductivity factor when 850 DEG C of temperature are used is less than 0.1W/ (Km), foaming light aggregate concrete layer Not easy to crack, never drop-off has the consistent life-span with institute thermal insulation structure.
Embodiment 6 obtain foaming light-weight aggregate polymers concrete pouring material can be cast in mould, be hardened to high temperature resistant, Heat-insulated, waterproof, corrosion resistant variously-shaped light inorganic heat preserving material, dry weight 150kg/m3, it is when 900 DEG C of temperature are used Thermal conductivity factor is less than 0.1W/ (Km), and the soak layer that the foaming light aggregate concrete material is built by laying bricks or stones is not easy to crack, never take off Fall has the consistent life-span with the structure being incubated.
Finally it should be noted that:The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic. Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's Within protection domain.

Claims (12)

1. a kind of ground polymers foaming light aggregate concrete, it is characterised in that the material is by slag-fly ash composite micro-powder, alkalescence Exciting agent, inorganic super-light aggregate, high molecular polymer powder, inorganic chopped fiber, hydrogen peroxide CBA, kicker, Inorganic porous carrier and foam stabilizer composition.
The alkali-activator accounts for the 2%~12% of the slag-fly ash composite micro-powder quality, preferably 5~10%;It is described The mass ratio of slag-fly ash composite micro-powder and the inorganic super-light aggregate is (0.5~2):1;The high molecular polymer powder End accounts for the 0.1%~2.5% of the slag-fly ash composite micro-powder quality;The inorganic chopped fiber accounts for the slag-fly ash The 0.1%~0.5% of composite micro-powder quality;The hydrogen peroxide CBA accounts for the slag-fly ash composite micro-powder quality 2%~5%;The kicker of the CBA account for the slag-fly ash composite micro-powder quality 0.05%~ 0.2%;The mass ratio (5~10) of the slag-fly ash composite micro-powder and inorganic porous carrier:1;The foam stabilizer accounts for described The 0.5~2% of slag-fly ash composite micro-powder quality.
2. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the slag-fine coal Acidity coefficient >=1 of grey composite micro-powder, specific surface area >=450m2/kg, slag and flyash are compound with arbitrary proportion, flyash By activating pretreatment.
3. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the alkali-activator It is to be composited by any of hydroxide, silicate, carbonate of alkali metal or wantonly more than two kinds, the alkaline excitation Specific surface area >=350m2/kg of agent powder.
4. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the high molecular polymerization Thing is any in re-dispersible glue powder, methylcellulose (CMC), carboxylic propyl methocel (HPMC), polyethylene glycol (PEG) Plant or wantonly more than two kinds are constituted so that arbitrary proportion is compound.
5. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the light-weight aggregate is by burning Expanded haydite, expanded perlite coarse granule, natural pumice, permutite, expanded slag particle, expanded glass particle, flyash drift Any of pearl or wantonly more than two kinds are composited with arbitrary proportion, their accumulation unit weight≤300kg/m3, cylindrical compress strength ≥2MPa。
6. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the water reducer is poly- Any of carboxylic acid high efficiency water reducing agent, naphthalene series high-efficiency water-reducing agent and HSB aliphatic high-efficiency water reducing agents.
7. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the inorganic chopped fiber For ceramic short fiber, staple glass fibre, mineral wool chopped fiber, the length of inorganic chopped fiber is 5~15mm, fibre diameter≤7m.
8. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the CBA The mass concentration of hydrogen peroxide is 27.5wt%~50wt%, preferably 27.5wt%.
9. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the CBA Kicker any of for ferric sulfate, ferrous sulfate, iron chloride, frerrous chloride, potassium permanganate.
10. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that the chemical blowing The foam stabilizer of agent is any in gelatin solution, polyacrylamide, polyvinyl alcohol, polypeptide, soluble starch.
11. polymers foaming light aggregate concrete in a kind of ground according to claim 1, it is characterised in that described inorganic porous Carrier is expanded perlite fine grained, and as the carrier I and the carrier II of alkali-activator of CBA, its particle size range is 0.1~1mm, accumulates 100~150kg/m3 of unit weight, water absorption rate >=100%.
12. the preparation method of a kind of ground polymers foaming light aggregate concrete according to claim 1 is comprised the following steps that:
(1) slag-fly ash composite micro-powder, alkali-activator powder, expanded perlite fine grained, high score are weighed according to match ratio Sub- polymer powder, light-weight aggregate, water reducer, inorganic chopped fiber, chemical blowing agent hydrogen peroxide, kicker, foam stabilizer and Water, ground polymers, which foams, needs water quality to be 0.6~1.0 with slag-fly ash composite micro-powder mass ratio in prepared by light material;
(2) alkali-activator needed for dispensing is made into the aqueous solution, adds 5%~10% expanded perlite fine grained, make expansion Perlite fine grained is excited agent solution saturation, then will load the expanded perlite fine grained of alkali-activator more than 100 DEG C Forced air drying is carried out under temperature conditionss, 0.5~1h of drying time obtains the carrier I for being loaded with alkali-activator, while will also change Learn in the expanded perlite fine grained needed for foaming agent adds remaining dispensing, directly obtain the carrier II for loading chemicalization infusion;
(3) according to ratio in dispensing, the high molecular polymer powder in dispensing, inorganic chopped fiber are added into the slag-fine coal In grey composite micro-powder, first carry out 3~10min pre- stirring, obtain premixing slag-fly ash composite micro-powder, then by foam stabilizer and Kicker is added in required water, stirs into blowing promotor solution;
(4) by the dried carrier I for being loaded with alkali-activator of step (2), premixing slag-fine coal obtained by step (3) is added In grey composite micro-powder, 3~10min is stirred, ground oligomer gel material powder is obtained after mixing thoroughly, then by blowing promotor solution and dispensing Required remaining water is added thereto after 1~2min of stirring, obtains geopolymer slurry;
(5) weigh light-weight aggregate according to match ratio and be added in the geopolymer slurry that step (4) is obtained and be stirred mixing, stir The time is mixed for 3~5min, fluidised form light-weight aggregate is made polymers concrete;
(6) the carrier II continuous uniforms that saturation described in step (2) is loaded into chemical blowing agent hydrogen peroxide add step (5) and are made The fluidised form light aggregate concrete mixed slowly in carry out foam in place, mixing speed now is less than 15 revs/min, 1~2min of mixing time, stands after 2-3min again after stopping stirring, obtains with foaming light-weight aggregate polymers concrete coating or pours Material feeding.
CN201710066531.4A 2017-02-07 2017-02-07 A kind of ground polymers foaming light aggregate concrete and preparation method thereof Pending CN107043273A (en)

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CN107746215A (en) * 2017-10-30 2018-03-02 西安建筑科技大学 A kind of mineral polymer foam concrete and preparation method
CN108546050A (en) * 2018-07-02 2018-09-18 广东清大同科环保技术有限公司 A kind of fly ash base concrete
CN108911607A (en) * 2018-08-22 2018-11-30 黄国城 Assembled materials for wall and preparation method thereof
CN108911607B (en) * 2018-08-22 2021-04-02 黄国城 Assembled wall material and preparation method thereof
CN109534730A (en) * 2018-10-17 2019-03-29 谢宁汉 The production method of foaming light brick plate
CN110357462A (en) * 2019-07-29 2019-10-22 南京工业大学 A kind of slag based dried powder ground polymers and preparation method and application
CN110698132A (en) * 2019-09-30 2020-01-17 攀钢集团攀枝花钢铁研究院有限公司 Titanium slag fireproof heat-insulation board and preparation method and application thereof
CN111646771A (en) * 2020-06-17 2020-09-11 山西大学 Solid-phase foaming fly ash non-sintered ceramsite and preparation method thereof
CN112079585A (en) * 2020-07-30 2020-12-15 浙江大学 Super-hydrophobic geopolymer prepared by microcellular foaming and preparation method thereof
CN112079585B (en) * 2020-07-30 2021-06-01 浙江大学 Super-hydrophobic geopolymer prepared by microcellular foaming and preparation method thereof
CN111807776A (en) * 2020-09-14 2020-10-23 佛山市中基重科钢结构开发有限公司 Inorganic polymer novel lightweight concrete and preparation method thereof

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Application publication date: 20170815