CN108395170A - A kind of cement insulation board based on foam concrete waste material - Google Patents
A kind of cement insulation board based on foam concrete waste material Download PDFInfo
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- CN108395170A CN108395170A CN201810118573.2A CN201810118573A CN108395170A CN 108395170 A CN108395170 A CN 108395170A CN 201810118573 A CN201810118573 A CN 201810118573A CN 108395170 A CN108395170 A CN 108395170A
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- foam concrete
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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
- 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
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, 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
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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 cement insulation boards based on foam concrete waste material.Cement insulation board is made of by weight following each ingredient：1~1.5 part of 70~80 parts of Portland cement, 20~30 parts of flyash, 0.5~1 part of foaming agent, 6~24 parts of foam concrete, 55~60 parts of water and water-reducing agent.Discarded foam concrete is become the artificial lightweight aggregate of variable grain size by the present invention by being crushed, after sieve classification, and self-heat conserving plate is made in incorporation foam concrete idiosome.The present invention uses solid waste, of low cost, becomes waste and into efficient resource and recycles, and production process energy conservation and environmental protection, have good economy and environmental benefit, enriches energy-saving heat-insulating wall material type, improve the greenness of inorganic lightweight material.The thermal coefficient of cement insulation board produced by the present invention is in 0.06~0.10w/mk, and compression strength reaches 1Mpa or more, and bulk density is in 490~640kg/m3, volume water absorption rate 15~20%.
Description
Technical field
The present invention relates to a kind of building thermal insulation material more particularly to a kind of cement base foaming using waste foam concrete
Thermal insulation board and preparation method thereof.
Background technology
The useless idiosome of foam concrete, useless plate and cutting leftover pieces size millimeter are differed from several millimeters to hundreds of, intensity compared with
Low, intensity is generally less than 0.5MPa, it is difficult to which, directly as construction material, foam concrete panel products raw material contains cementitious material
(cement), admixture, fiber, additive, chemical foaming agent etc. remove in waste material and contain hydrolysis product of cement and unhydrated water
Mud, fiber are wrapped among hydrolysis product of cement, although these material values are higher, because lacking the technology of efficiently separating,
Rarely waste foam concrete recycles research at present.Have researches show that：By the waste material after crushing by calcining grinding, prepare
Obtain can aquation again regenerative gel material.Under the system of slag alkali-activated carbonatite foam concrete is prepared with this regrown material.
Test result shows that regenerative gel material can be obtained when calcination temperature setting is near 650 DEG C and substitute cement component to prepare bubble
Foam concrete, finished product density 600kg/m3, 28d compression strength is 4.3MPa, and thermal coefficient is 0.155W/ (mK).But
High-temperature calcination, high energy consumption are still needed during this.Currently, these waste materials are mainly taken as building waste landfill disposal.
Invention content
Based on the above issues, the present invention carries to solve the problems, such as that existing foam concrete leftover pieces recovery processing exists
A kind of cement insulation board based on foam concrete waste material has been supplied, recycling treatment profit is carried out to foam concrete board waste material
With improving the greenness of inorganic lightweight material.Foam concrete heat-preserving plate is light material, and waste material is loose porous, intensity compared with
It is low, can be as the auxiliary element of other light building materials after working process although production building materials cannot be used directly to, it can
The performance for improving light building material, reduces cost.Foam concrete heat-preserving plate waste material becomes different after broken, sieve classification
The artificial lightweight aggregate of grain size, it is a kind of new settling mode that these artificial lightweight aggregates, which are used to manufacture light building material,.It will discard
The artificial lightweight aggregate that foam concrete plate is processed into variable grain size mixes the making of foam concrete idiosome certainly in appropriate proportions
Thermal insulation board, not only energy-saving and environmental protection, but also the utilization of waste high added value is realized, improve the green of inorganic lightweight material
Degree has Important Project practice significance for the development of circular economy.The thermal insulation board is low using a large amount of solid waste, price
It is honest and clean, help to push Developing Energy-saving Construction, is a kind of energy-saving and emission-reduction of broad sense.
The present invention adopts the following technical scheme that realization：
A kind of cement insulation board based on foam concrete waste material is made of by weight following each ingredient：
70~80 parts of Portland cement, 20~30 parts of flyash, 0.5~1 part of foaming agent, foam concrete 6~24
1~1.5 part of part, 55~60 parts of water and water-reducing agent
Foaming agent is the bi-component physical blowing agent containing foam stabilizer, such as：Beijing Asia sets the YS of building materials Science and Technology Ltd.
One 15 type cement blowing agents.
Foam concrete is the foam concrete leftover pieces discarded, and grain diameter is 5mm~20mm.
Water-reducing agent is polycarboxylic acids dehydragent.
The total amount of used water, 80~90% in foaming agent, remaining 10~20% to be used for water-reducing agent.
A kind of preparation method of the cement insulation board based on foam concrete waste material, includes the following steps：1) weight is pressed
Ratio is measured, 70~80 parts of Portland cement, 20~30 parts of flyash are added sequentially in planetary cement mortar mixer,
Stirring 6-10 seconds；
2) it by discarded foam concrete, is broken into grain size and is the lightweight aggregate of 5mm~20mm, then be placed in water and impregnate 1h,
It takes out and dries surface moisture, obtain foam concrete of prewetting；
3) it after foaming agent being diluted with water, is added in planetary cement mortar mixer, high-speed stirred is a large amount of newborn to generating
White exquisiteness uniform bubble；
4) it by the mixture obtained by step 1, is added in step 3, continues 3~6s of stirring；
5) water-reducing agent is dissolved in water, be added in step 4, then high-speed stirred 1min, obtain foam cement slurry；
6) placement layer by layer method is used, the foam cement slurry obtained by surface smear 2-3mm thickness step 5 in die trial, then
The foam concrete of prewetting obtained by 15--20mm thickness step 2 is spread, then pours the foam cement slurry obtained by one layer of 4--6mm thickness step 5
Body repaves the foam concrete of prewetting obtained by 15--20mm thickness step 2, repeatedly, until filling up die trial, last smooth out surface
Molding, form removal is to get the cement insulation board based on foam concrete waste material after standing for 24 hours.
The cement insulation board that the present invention obtains not only can be with article of manufacture, can also cast in situs.If adjustment hair
Bubble degree can also produce insulation blocks.Include foam stabilizer ingredient in foaming agent, foam stabilization time can be made longer；Foam is mixed
Solidifying soil is prewetted, and particle size control is in 5mm~20mm, it is therefore intended that, the bubble in anti-foam cement encounters dry aggregate
Brokenly bubble, and be conducive to aggregate and slurry interface is preferably bonded together.
The advantageous effect that technical solution of the present invention is realized：
The present invention prepares thermal insulation board using foam concrete leftover pieces and foam cement, is mainly used for inner-outer wall, roofing is protected
Temperature and fire-blocking belt.The waste coal ash etc. in discarded foam concrete and thermal power plant is turned waste into wealth, is solved
While the problems such as waste of having determined nowhere is stacked, realizes the target of building energy-saving emission reduction, meet continuable development principle.Become
Waste is efficient resource and to recycle, and is a kind of energy-saving and emission-reduction of broad sense, and production process energy conservation and environmental protection, is had good
Economy and environmental benefit.In addition, the present invention produces light inorganic heat preserving plate using inorganic heat preservation waste material, energy-saving heat-insulating wall is enriched
Material category improves the greenness of inorganic lightweight material.Production cost of the present invention is low, simple for process, easily promotes.Foaming obtained
For the thermal coefficient of cement heat preserving plate in 0.06~0.10w/mk, compression strength reaches 1Mpa or more, bulk density 490~
640kg/m3, volume water absorption rate 15~20%.
Specific implementation mode
Technical scheme of the present invention described in detail below.
Embodiment 1
Making sheet raw material, 70 parts of Portland cement, 30 parts of flyash, 0.5 part of foaming agent, bubble are prepared by following parts by weight
1 part of 6 parts of foam concrete, 60 parts of water and water-reducing agent；
Preparation method is as follows：
1) 70 parts of Portland cement, 30 parts of flyash by weight, are added sequentially to planetary cement mortar to stir
It mixes in machine, stirs 6-10 seconds；
2) it by discarded foam concrete, is broken into grain size and is the lightweight aggregate of 5mm~20mm, then be placed in water and impregnate 1h,
It takes out and dries surface moisture, obtain foam concrete of prewetting；
3) it after foaming agent being diluted with water, is added in planetary cement mortar mixer, high-speed stirred is a large amount of newborn to generating
White exquisiteness uniform bubble；
4) it by the mixture obtained by step 1, is added in step 3, continues 3~6s of stirring；
5) water-reducing agent is dissolved in water, be added in step 4, then high-speed stirred 1min, obtain foam cement slurry；
6) placement layer by layer method is used, the foam cement slurry obtained by surface smear 2-3mm thickness step 5 in die trial, then
The foam concrete of prewetting obtained by 15--20mm thickness step 2 is spread, then pours the foam cement slurry obtained by one layer of 4--6mm thickness step 5
Body repaves the foam concrete of prewetting obtained by 15--20mm thickness step 2, repeatedly, until filling up die trial, last smooth out surface
Molding, form removal is to get the cement insulation board based on foam concrete waste material after standing for 24 hours.
After tested, the thermal coefficient of cement insulation board obtained is 0.10w/mk, and compression strength reaches
2.70Mpa, bulk density 640kg/m3, volume water absorption rate 16.4%.
Embodiment 2
Making sheet raw material, 70 parts of Portland cement, 30 parts of flyash, 0.5 part of foaming agent, bubble are prepared by following parts by weight
1 part of 12 parts of foam concrete, 60 parts of water and water-reducing agent.
Preparation method is as follows：
1) 70 parts of Portland cement, 30 parts of flyash by weight, are added sequentially to planetary cement mortar to stir
It mixes in machine, stirs 6-10 seconds；
2) it by discarded foam concrete, is broken into grain size and is the lightweight aggregate of 5mm~20mm, then be placed in water and impregnate 1h,
It takes out and dries surface moisture, obtain foam concrete of prewetting；
3) it after foaming agent being diluted with water, is added in planetary cement mortar mixer, high-speed stirred is a large amount of newborn to generating
White exquisiteness uniform bubble；
4) it by the mixture obtained by step 1, is added in step 3, continues 3~6s of stirring；
5) water-reducing agent is dissolved in water, be added in step 4, then high-speed stirred 1min, obtain foam cement slurry；
6) placement layer by layer method is used, the foam cement slurry obtained by surface smear 2-3mm thickness step 5 in die trial, then
The foam concrete of prewetting obtained by 15--20mm thickness step 2 is spread, then pours the foam cement slurry obtained by one layer of 4--6mm thickness step 5
Body repaves the foam concrete of prewetting obtained by 15--20mm thickness step 2, repeatedly, until filling up die trial, last smooth out surface
Molding, form removal is to get the cement insulation board based on foam concrete waste material after standing for 24 hours.
After tested, the thermal coefficient of cement insulation board obtained is 0.09w/mk, and compression strength reaches
1.82Mpa, bulk density 587kg/m3, volume water absorption rate 17.1%.
Embodiment 3
Making sheet raw material, 70 parts of Portland cement, 30 parts of flyash, 0.5 part of foaming agent, bubble are prepared by following parts by weight
1 part of 18 parts of foam concrete, 60 parts of water and water-reducing agent.
Preparation method is as follows：
1) 70 parts of Portland cement, 30 parts of flyash by weight, are added sequentially to planetary cement mortar to stir
It mixes in machine, stirs 6-10 seconds；
2) it by discarded foam concrete, is broken into grain size and is the lightweight aggregate of 5mm~20mm, then be placed in water and impregnate 1h,
It takes out and dries surface moisture, obtain foam concrete of prewetting；
3) it after foaming agent being diluted with water, is added in planetary cement mortar mixer, high-speed stirred is a large amount of newborn to generating
White exquisiteness uniform bubble；
4) it by the mixture obtained by step 1, is added in step 3, continues 3~6s of stirring；
5) water-reducing agent is dissolved in water, be added in step 4, then high-speed stirred 1min, obtain foam cement slurry；
6) placement layer by layer method is used, the foam cement slurry obtained by surface smear 2-3mm thickness step 5 in die trial, then
The foam concrete of prewetting obtained by 15--20mm thickness step 2 is spread, then pours the foam cement slurry obtained by one layer of 4--6mm thickness step 5
Body repaves the foam concrete of prewetting obtained by 15--20mm thickness step 2, repeatedly, until filling up die trial, last smooth out surface
Molding, form removal is to get the cement insulation board based on foam concrete waste material after standing for 24 hours.
After tested, the thermal coefficient of cement insulation board obtained is 0.08w/mk, and compression strength reaches
1.39Mpa, bulk density 510kg/m3, volume water absorption rate 17.9%.
Embodiment 4
Making sheet raw material, Portland cement 70, flyash 30, foaming agent 0.5, foam coagulation are prepared by following parts by weight
1.5 parts of soil 24, water 60 and water-reducing agent.
Preparation method is as follows：
1) 70 parts of Portland cement, 30 parts of flyash by weight, are added sequentially to planetary cement mortar to stir
It mixes in machine, stirs 6-10 seconds；
2) it by discarded foam concrete, is broken into grain size and is the lightweight aggregate of 5mm~20mm, then be placed in water and impregnate 1h,
It takes out and dries surface moisture, obtain foam concrete of prewetting；
3) it after foaming agent being diluted with water, is added in planetary cement mortar mixer, high-speed stirred is a large amount of newborn to generating
White exquisiteness uniform bubble；
4) it by the mixture obtained by step 1, is added in step 3, continues 3~6s of stirring；
5) water-reducing agent is dissolved in water, be added in step 4, then high-speed stirred 1min, obtain foam cement slurry；
6) placement layer by layer method is used, the foam cement slurry obtained by surface smear 2-3mm thickness step 5 in die trial, then
The foam concrete of prewetting obtained by 15--20mm thickness step 2 is spread, then pours the foam cement slurry obtained by one layer of 4--6mm thickness step 5
Body repaves the foam concrete of prewetting obtained by 15--20mm thickness step 2, repeatedly, until filling up die trial, last smooth out surface
Molding, form removal is to get the cement insulation board based on foam concrete waste material after standing for 24 hours.
After tested, the thermal coefficient of cement insulation board obtained is 0.06w/mk, and compression strength reaches
1.31Mpa, bulk density 495kg/m3, volume water absorption rate 18.3%.
Embodiment 5
Making sheet raw material, 80 parts of Portland cement, 20 parts of flyash, 0.5 part of foaming agent, bubble are prepared by following parts by weight
1 part of 18 parts of foam concrete, 55 parts of water and water-reducing agent.
Preparation method is as follows：
1) 80 parts of Portland cement, 20 parts of flyash by weight, are added sequentially to planetary cement mortar to stir
It mixes in machine, stirs 6-10 seconds；
2) it by discarded foam concrete, is broken into grain size and is the lightweight aggregate of 5mm~20mm, then be placed in water and impregnate 1h,
It takes out and dries surface moisture, obtain foam concrete of prewetting；
3) it after foaming agent being diluted with water, is added in planetary cement mortar mixer, high-speed stirred is a large amount of newborn to generating
White exquisiteness uniform bubble；
4) it by the mixture obtained by step 1, is added in step 3, continues 3~6s of stirring；
5) water-reducing agent is dissolved in water, be added in step 4, then high-speed stirred 1min, obtain foam cement slurry；
6) placement layer by layer method is used, the foam cement slurry obtained by surface smear 2-3mm thickness step 5 in die trial, then
The foam concrete of prewetting obtained by 15--20mm thickness step 2 is spread, then pours the foam cement slurry obtained by one layer of 4--6mm thickness step 5
Body repaves the foam concrete of prewetting obtained by 15--20mm thickness step 2, repeatedly, until filling up die trial, last smooth out surface
Molding, form removal is to get the cement insulation board based on foam concrete waste material after standing for 24 hours.
After tested, the thermal coefficient of cement insulation board obtained is 0.09w/mk, and compression strength reaches
1.83Mpa, bulk density 530kg/m3, volume water absorption rate 18.1%.
Comparative example 1
Making sheet raw material, 70 parts of Portland cement, 30 parts of flyash, 0.5 part of foaming agent, bubble are prepared by following parts by weight
0 part of foam concrete, 60 parts of water and water-reducing agent 1w/w%.
Preparation method is：It is stirred to generation largely in blender high speed after foaming agent is diluted with water with certain proportion
The cement weighed up in proportion, flyash and a part of water are added blender and stir 3~6s by milky exquisiteness uniform bubble, then
Remaining water dissolved with water-reducing agent is all added, then high-speed stirred 1min, finally mixture is poured into mold, is stood for 24 hours
Form removal afterwards.
After tested, the thermal coefficient of cement insulation board obtained is 0.12w/mk, and compression strength reaches
2.83Mpa, bulk density 684kg/m3, volume water absorption rate 16.2%.
Above technical scheme is only the preferred embodiments of the invention, it should be pointed out that：Before not departing from the principle of the invention
It puts, those skilled in the art can also make several improvements and modifications, these improvements and modifications also should be regarded as the guarantor of the present invention
Protect range.
Claims (6)
1. a kind of cement insulation board based on foam concrete waste material, characterized in that by weight by following each ingredient
Composition：
70~80 parts of Portland cement, 20~30 parts of flyash, 0.5~1 part of foaming agent, 6~24 parts of foam concrete, water
55~60 parts and 1~1.5 part of water-reducing agent.
2. a kind of cement insulation board based on foam concrete waste material according to claim 1, it is characterized in that described
Foaming agent be the bi-component physical blowing agent containing foam stabilizer, such as：Beijing Asia sets mono- 15 types of YS of building materials Science and Technology Ltd.
Cement blowing agent.
3. a kind of cement insulation board based on foam concrete waste material according to claim 1, it is characterized in that described
Foam concrete be discarded foam concrete leftover pieces, grain diameter is 5mm~20mm.
4. a kind of cement insulation board based on foam concrete waste material according to claim 1, it is characterized in that described
Water-reducing agent be polycarboxylic acids dehydragent.
5. a kind of cement insulation board based on foam concrete waste material according to claim 1, it is characterised in that institute
The total amount for the water stated, 80~90% in foaming agent, remaining 10~20% to be used for water-reducing agent.
6. a kind of preparation method of the cement insulation board based on foam concrete waste material, it is characterised in that：Including following step
Suddenly：
1) 70~80 parts of Portland cement, 20~30 parts of flyash by weight, are added sequentially to planetary cement gel
In sand agitator, stir 6-10 seconds；
2) it by discarded foam concrete, is broken into grain size and is the lightweight aggregate of 5mm~20mm, then be placed in water and impregnate 1h, take out
Surface moisture is dried, obtains foam concrete of prewetting；
3) it after foaming agent being diluted with water, is added in planetary cement mortar mixer, high-speed stirred is to generating a large amount of milkys
Fine and smooth uniform bubble；
4) it by the mixture obtained by step 1, is added in step 3, continues 3~6s of stirring；
5) water-reducing agent is dissolved in water, be added in step 4, then high-speed stirred 1min, obtain foam cement slurry；
6) placement layer by layer method is used, the foam cement slurry obtained by surface smear 2-3mm thickness step 5 in die trial repaves
Foam concrete of prewetting obtained by 15--20mm thickness step 2, then pour the foam cement slurry obtained by one layer of 4--6mm thickness step 5
Body repaves the foam concrete of prewetting obtained by 15--20mm thickness step 2, repeatedly, until filling up die trial, last smooth out surface
Molding, form removal is to get the cement insulation board based on foam concrete waste material after standing for 24 hours.
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| CN201810118573.2A CN108395170B (en) | 2018-02-06 | 2018-02-06 | Foamed cement heat-insulation board based on foamed concrete waste |
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| CN201810118573.2A CN108395170B (en) | 2018-02-06 | 2018-02-06 | Foamed cement heat-insulation board based on foamed concrete waste |
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| CN108395170B CN108395170B (en) | 2020-10-30 |
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Cited By (1)
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| CN115677379A (en) * | 2022-11-23 | 2023-02-03 | 淮阴工学院 | Preparation method of foam concrete |
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| CN115677379A (en) * | 2022-11-23 | 2023-02-03 | 淮阴工学院 | Preparation method of foam concrete |
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| CN108395170B (en) | 2020-10-30 |
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