CN107098643B - A kind of preparation method of foam concrete - Google Patents

A kind of preparation method of foam concrete Download PDF

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Publication number
CN107098643B
CN107098643B CN201710309269.1A CN201710309269A CN107098643B CN 107098643 B CN107098643 B CN 107098643B CN 201710309269 A CN201710309269 A CN 201710309269A CN 107098643 B CN107098643 B CN 107098643B
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powder
gangue
foam concrete
binder
coal
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CN107098643A (en
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不公告发明人
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Zunhua Shanyuan Concrete Co ltd
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Zunhua Shanyuan Concrete Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use 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
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/022—Agglomerated materials, e.g. artificial aggregates agglomerated by an organic binder
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0016—Granular materials, e.g. microballoons
    • C04B20/002—Hollow or porous granular materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/023—Chemical treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/04—Heat treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40—Porous or lightweight materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a kind of preparation method of foam concrete, including component are as follows: cement, mineral powder, flyash and water, further include following components: foamed material and binder；The mass fraction of each component are as follows: 160 ~ 280 parts of cement, 60 ~ 140 parts of mineral powder, 60 ~ 180 parts of flyash, 120 ~ 210 parts of water, 110 ~ 180 parts of foamed material, 12 ~ 25 parts of binder, 10 ~ 20 parts of foaming agent, 10 ~ 20 parts of dispersing agent.It is with good and stable compression strength.

Description

A kind of preparation method of foam concrete
Technical field
The present invention relates to technical field of concrete, more specifically, it relates to a kind of system of stable resistance to compression foam concrete Preparation Method.
Background technique
In recent years, the domestic requirement to energy conservation and environmental protection and protection environment is continuously improved, and the energy conservation of dwelling construction is continuous Deeply, energy conservation standard is continuously improved, and introduction develops many novel power-saving technologies and material, widelys popularize in residential housing It uses.Foam concrete useless, environmental protection, energy conservation, fire prevention, cheap new energy-saving material as a kind of benefit possess special more Pore structure, excellent thermal insulation property.The production of foam concrete can largely utilize the industrial wastes such as flyash, slag, mountain flour, subtract The discharge of waste product is lacked, ecological condition can be effectively improved, preserved the ecological environment, economic benefit and social benefit are all very aobvious It writes.However, the defect of the generally existing lower compressive strength of foam concrete, affects it and widely applies and promote.
It is existing application No. is the Chinese patent of 201010264056.X (documents 1) disclose a kind of foam concrete and Preparation method, it includes cement, mineral powder, flyash, water, waterproofing agent, fiber, auxiliary material and foaming agent, the foam concrete Compression strength is between 0.3~4MPa；Application No. is the Chinese patents of 201210561385.X (documents 2) to disclose one kind Foam concrete, it includes extra material, cementing material and chemical adjuvant, and the cementing material includes clinker, oxidation Calcium and gelatine powder, the mean compressive strength of the foam concrete are 5.2MPa.The pressure resistance of foam concrete in documents 1 Spend it is unstable, wherein 0.3MPa also be not up to foam concrete minimum strength grade, be unfavorable for investment construction；Documents 2 Although foam concrete in has good compression strength, and the strength grade of normal concrete has not been reached yet, unfavorable It widely applies and promotes in it.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of system of stable resistance to compression foam concrete Preparation Method, with good and stable compression strength.
A kind of stable resistance to compression foam concrete, including component are as follows: cement, mineral powder, flyash and water further include following Component: foamed material and binder；The mass fraction of each component are as follows: 160~280 parts of cement, 60~140 parts of mineral powder, fine coal 60~180 parts of ash, 120~210 parts of water, 110~180 parts of foamed material, 12~25 parts of binder, 10~20 parts of foaming agent, point 10~20 parts of powder.
The foamed material is graphite, ceramic material, any one or two or more mixing in sintered foamed metal Object.
The foaming agent is alkyl sulfonic ester, hydroxyalkyl ether sulphonic acid ester, alkyl ether sulfonates, hydroxyalkyl ether sulfuric ester, α- Alkene sulfonic acid ester, alkyl benzene sulfonic acid ester, alkyl ether sulphate, alpha-olefin sulfuric ester, in alkylbenzene sulfuric ester any one or Two or more mixtures.
The binder is water-proof adhesive；The cement is at least one of portland cement, sulphate aluminium cement； The dispersing agent is one of allyl ester ether, allyl polyglycol, acrylamide, methylpropene sodium sulfonate.
The mineral powder is industrial tailings powder, dicalcium powder, silicon powder, slag, volcanic ash, at least one of ureaformal dehyde resin glue.
It further include 20~40 parts of gangue.
The preparation method of above-mentioned stabilization resistance to compression foam concrete, includes the following steps:
Step 1: dispersing agent being added in foamed material again first and stirs evenly, reuses Kong Mi of the binder by foamed material Envelope, finally dries, obtains product A；
Step 2: gangue and being activated broken, ball milling, product B is obtained
Step 3: cement, mineral powder, flyash and foaming agent being put into container, after mixing evenly with blender, then fallen Enter the resulting product A of step 1 and the resulting product B of step 2 is mixed, after mixing evenly, is eventually adding water and is stirred It is even, it paves to construction surface, natural levelling after intensity to be achieved, forms the stabilization resistance to compression foam concrete of forming after conserving.
The step 2 is to be crushed using jaw crusher to gangue, and broken gangue is then placed in ball Ball milling in grinding machine, obtains coal gangue powder；Coal gangue powder is placed in Muffle furnace, is protected under conditions of temperature is 700 DEG C~900 DEG C Warm 2h~3h is activated, the coal gangue powder after being activated after natural cooling i.e. product B.
It further include 20~40 parts and 20~40 parts of glass fibre of prestox polyhedral oligomeric silsesquioxane.
The preparation method of above-mentioned stabilization resistance to compression foam concrete, includes the following steps:
Step 1: dispersing agent being added in foamed material again first and stirs evenly, reuses Kong Mi of the binder by foamed material Envelope, finally dries, obtains product A；
Step 2: using gamma-aminopropyl-triethoxy-silane as coupling agent, polyurethane as film forming agent, by glass fibre plus Enter in ethyl alcohol, be mixed, ultrasonic 10min, dry 4h at 120 DEG C, obtain surface treated E- glass fibre, then will E- glass fibre and the mixing of prestox polyhedral oligomeric silsesquioxane, stir at low speed, double screw extruder melt blending are added It is granulated, obtains product B；
Step 3: gangue being crushed using jaw crusher, then broken gangue is placed in ball mill Ball milling obtains coal gangue powder；Coal gangue powder is placed in Muffle furnace, temperature be 700 DEG C~900 DEG C under conditions of heat preservation 2h~ 3h is activated, the coal gangue powder after being activated after natural cooling i.e. product C；
Step 4: cement, mineral powder, flyash and foaming agent being put into container, after mixing evenly with blender, then fallen Enter the resulting product A of step 1, the resulting product B of step 2 and the resulting product C of step 3 is mixed, after mixing evenly, finally Addition water is stirred uniformly, is paved to construction surface, natural levelling, and after intensity to be achieved, the stabilization of forming is formed after conserving Resistance to compression foam concrete.
Compared with prior art, beneficial effects of the present invention:
1. the benefit that foam concrete produced by the present invention remains conventional foam concrete is useless, environmentally friendly, energy saving, anti- Fiery, cheap advantage also adds advantage not available for conventional foam concrete: good and stable compression strength.
2. the present invention provides a new thinking for the preparation of foam concrete, the present invention uses graphite, ceramic material Or sintered foamed metal etc. is used as foamed material, to substitute the gap in conventional foam concrete.
3. the foamed materials such as graphite, ceramic material, sintered foamed metal generally all have good heating conduction, it is unfavorable for The thermal insulation property of foam concrete, but bonded the gap on the surface of foam concrete by water-proof adhesive, it prevents Its is thermally conductive, and then increases thermal insulation property of the invention.
4. first dispersing foamed material using dispersing agent, prevent from that binder is directly used to carry out hole due to foamed material It seals and leads to that the particle of foamed material is bigger, even sticks into one sticks together, and then prevent obtained stabilization resistance to compression foam mixed The occurrence of solidifying soil is uneven, compression strength is low etc..
5. foaming agent etc. is added after activate at high temperature using gangue to be formulated, can be improved its it is additional using value with It reduces environmental pollution, foam concrete compression strength obtained is high, meets construction material requirement.
6.E- glass fibre is worked in coordination with prestox polyhedral oligomeric silsesquioxane, and wherein E- fiberglass surfacing has More polyamino reacts with the prestox polyhedral oligomeric silsesquioxane (poss) containing epoxy group, nanoscale poss Embedding company occurs with glass fibre, is equivalent to the prestox polyhedral oligomeric silsesquioxane with dots structure for thick line structure E- glass fibre wraps, and is greatly improved anti-flammability and compression strength.
Specific embodiment
Embodiment one:
Using portland cement 160Kg, industrial tailings powder 60Kg, coal powder 60Kg, water 120Kg, graphite 110Kg, bastard coal Stone 20Kg, binder 12Kg, foaming agent 10Kg, dispersing agent 10Kg；
The binder is water-proof adhesive；The foaming agent is alkyl sulfonic ester；The dispersing agent is allyl ester ether；
The sample one of the stabilization resistance to compression foam concrete of production.
Embodiment two:
Using sulphate aluminium cement 280Kg, dicalcium powder 140Kg, coal powder 180Kg, water 210Kg, ceramic material 180Kg, Gangue 40Kg, binder 25Kg, foaming agent 20Kg, dispersing agent 18Kg；
The binder is water-proof adhesive；The foaming agent is hydroxyalkyl ether sulphonic acid ester；The dispersing agent is allyl Polyethylene glycol；The sample two of the stabilization resistance to compression foam concrete of production.
Embodiment three:
Using portland cement 180Kg, industrial tailings powder 70Kg, coal powder 80Kg, water 140Kg, sintered foamed metal 120Kg, gangue 25Kg, binder 14Kg, foaming agent 12Kg, dispersing agent 12Kg；
The binder is water-proof adhesive；The foaming agent is alkyl ether sulfonates；The dispersing agent is acrylamide；
The sample three of the stabilization resistance to compression foam concrete of production.
Example IV:
Using portland cement 260Kg, industrial tailings powder 130Kg, coal powder 170Kg, water 200Kg, graphite 70Kg, ceramics Material 100Kg, gangue 35Kg, binder 22Kg, foaming agent 18Kg, dispersing agent 18Kg；
The binder is water-proof adhesive；The foaming agent is α-olefin sulfonate；The dispersing agent is metering system Sodium sulfonate；
The sample four of the stabilization resistance to compression foam concrete of production.
Embodiment five:
Using portland cement 220Kg, industrial tailings powder 100Kg, coal powder 120Kg, water 160Kg, graphite 75Kg, sintering Foam metal 85Kg, gangue 30Kg, binder 18Kg, foaming agent 15Kg, dispersing agent 15Kg,
The binder is water-proof adhesive；The foaming agent is alkyl benzene sulfonic acid ester；The dispersing agent is allyl ether Ester；
The sample five of the stabilization resistance to compression foam concrete of production.
Embodiment one to five the preparation method is as follows:
Step 1: dispersing agent being added in foamed material again first and stirs evenly, reuses Kong Mi of the binder by foamed material Envelope, finally dries, obtains product A；
Step 2: gangue and being activated broken, ball milling, product B is obtained；
Step 3: cement, mineral powder, flyash and foaming agent being put into container, after mixing evenly with blender, then fallen Enter the resulting product A of step 1 and the resulting product B of step 2 is mixed, after mixing evenly, is eventually adding water and is stirred It is even, it paves to construction surface, natural levelling after intensity to be achieved, forms the stabilization resistance to compression foam concrete of forming after conserving.
The step 2 is to be crushed using jaw crusher to gangue, and broken gangue is then placed in ball Ball milling in grinding machine, obtains coal gangue powder；Coal gangue powder is placed in Muffle furnace, is protected under conditions of temperature is 700 DEG C~900 DEG C Warm 2h~3h is activated, the coal gangue powder after being activated after natural cooling i.e. product B.
Embodiment six:
Using portland cement 160Kg, industrial tailings powder 130Kg, coal powder 120Kg, water 150Kg, ceramic material 75Kg, Sintered foamed metal 100Kg, gangue 30Kg, binder 15Kg, foaming agent 18Kg, dispersing agent 15Kg, prestox polyhedron are low Polysilsesquioxane 20Kg, glass fibre 20Kg；
The binder is water-proof adhesive；The foaming agent is that alkyl sulfonic ester and alkyl benzene sulfonic acid ester are mixed by 1:2； The dispersing agent is allyl ester ether；
The sample six of the stabilization resistance to compression foam concrete of production.
Embodiment seven:
Using portland cement 160Kg, industrial tailings powder 130Kg, coal powder 120Kg, water 150Kg, graphite 50Kg, ceramics Material 50Kg, sintered foamed metal 75Kg, gangue 30Kg, binder 15Kg, foaming agent 18Kg, dispersing agent 15Kg, prestox Polyhedral oligomeric silsesquioxane 40Kg, glass fibre 40Kg；
The binder is water-proof adhesive；The foaming agent is that alkyl ether sulfonates and alkylbenzene sulfuric ester are mixed by 1:4 It closes；The dispersing agent is allyl ester ether；
The sample seven of the stabilization resistance to compression foam concrete of production.
Embodiment eight:
Using portland cement 220Kg, industrial tailings powder 100Kg, coal powder 120Kg, water 160Kg, graphite 75Kg, sintering Foam metal 85Kg, gangue 30Kg, binder 18Kg, foaming agent 15Kg, dispersing agent 15Kg, prestox polyhedral oligomeric sesquialter Siloxanes 30Kg, glass fibre 30Kg；
The binder is water-proof adhesive；The foaming agent is alkyl ether sulfonates, alkyl ether sulphate, alpha-olefin sulphur Acid esters is mixed by 1:2:1；The dispersing agent is allyl ester ether；
The sample eight of the stabilization resistance to compression foam concrete of production
Embodiment six to eight the preparation method is as follows:
Step 1: dispersing agent being added in foamed material again first and stirs evenly, reuses Kong Mi of the binder by foamed material Envelope, finally dries, obtains product A；
Step 2: using gamma-aminopropyl-triethoxy-silane as coupling agent, polyurethane as film forming agent, by glass fibre plus Enter in ethyl alcohol, be mixed, ultrasonic 10min, dry 4h at 120 DEG C, obtain surface treated E- glass fibre, then will E- glass fibre and the mixing of prestox polyhedral oligomeric silsesquioxane, stir at low speed, double screw extruder melt blending are added It is granulated, obtains product B；
Step 3: gangue being crushed using jaw crusher, then broken gangue is placed in ball mill Ball milling obtains coal gangue powder；Coal gangue powder is placed in Muffle furnace, temperature be 700 DEG C~900 DEG C under conditions of heat preservation 2h~ 3h is activated, the coal gangue powder after being activated after natural cooling i.e. product C.
Step 4: cement, mineral powder, flyash and foaming agent being put into container, after mixing evenly with blender, then fallen Enter the resulting product A of step 1, the resulting product B of step 2 and the resulting product C of step 3 is mixed, after mixing evenly, finally Addition water is stirred uniformly, is paved to construction surface, natural levelling, and after intensity to be achieved, the stabilization of forming is formed after conserving Resistance to compression foam concrete.
Comparative example:
Portland cement 100Kg, dicalcium powder 50Kg, coal powder 60Kg, water 70Kg are put into container, stirred with blender After uniformly, hydrogen peroxide 13Kg mixing is poured into, is paved rapidly to construction surface, to natural levelling, stand foaming is finished, through conserving It is formed afterwards and shapes traditional foam concrete.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (2)

1. a kind of preparation method of stable resistance to compression foam concrete, it is characterised in that: the component that foam concrete includes are as follows: sulphur aluminium Acid salt cement 280Kg, dicalcium powder 140Kg, coal powder 180Kg, water 210Kg, ceramic material 180Kg, gangue 40Kg, binder 25Kg, foaming agent 20Kg, dispersing agent 18Kg；
The binder is water-proof adhesive；The foaming agent is hydroxyalkyl ether sulphonic acid ester；The dispersing agent is the poly- second of allyl Glycol；
Its preparation step is as follows:
Step 1: dispersing agent is added first in ceramic material and stirs evenly, reuses binder and seals the hole of ceramic material, It finally dries, obtains product A；
Step 2: gangue and being activated broken, ball milling, product B is obtained；
Step 3: sulphate aluminium cement, dicalcium powder, coal powder and foaming agent are put into container, after mixing evenly with blender, The resulting product A of step 1 is poured into again and the resulting product B of step 2 is mixed, and after mixing evenly, is eventually adding water and is stirred It mixes uniformly, paves to construction surface, natural levelling after intensity to be achieved, forms the stabilization resistance to compression foam coagulation of forming after conserving Soil.
2. the preparation method of stable resistance to compression foam concrete according to claim 1, which is characterized in that the step 2 is Gangue is crushed using jaw crusher, broken gangue is then placed in ball milling in ball mill, obtains bastard coal Mountain flour；Coal gangue powder is placed in Muffle furnace, heat preservation 2h~3h is carried out at activation under conditions of temperature is 700 DEG C~900 DEG C It manages, the coal gangue powder i.e. product B after being activated after natural cooling.
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