CN105016636B - A kind of gypsum slag cement insulation board and its preparation technology - Google Patents
A kind of gypsum slag cement insulation board and its preparation technology Download PDFInfo
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- CN105016636B CN105016636B CN201510393532.0A CN201510393532A CN105016636B CN 105016636 B CN105016636 B CN 105016636B CN 201510393532 A CN201510393532 A CN 201510393532A CN 105016636 B CN105016636 B CN 105016636B
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- cement
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- slag
- flyash
- insulation board
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- 239000004568 cement Substances 0.000 title claims abstract description 78
- 239000002893 slag Substances 0.000 title claims abstract description 57
- 239000010440 gypsum Substances 0.000 title claims abstract description 43
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 43
- 238000009413 insulation Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000005516 engineering process Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000010881 fly ash Substances 0.000 claims abstract description 36
- 239000011505 plaster Substances 0.000 claims abstract description 32
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 239000006260 foam Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 238000005187 foaming Methods 0.000 claims abstract description 15
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000004088 foaming agent Substances 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 8
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 8
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims abstract description 8
- 239000011507 gypsum plaster Substances 0.000 claims abstract description 8
- 235000019738 Limestone Nutrition 0.000 claims abstract description 6
- 239000006028 limestone Substances 0.000 claims abstract description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 50
- 238000003756 stirring Methods 0.000 claims description 28
- -1 polypropylene Polymers 0.000 claims description 14
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 12
- 235000013539 calcium stearate Nutrition 0.000 claims description 12
- 239000008116 calcium stearate Substances 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 6
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 4
- 229920002748 Basalt fiber Polymers 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 239000010883 coal ash Substances 0.000 claims 1
- 239000006071 cream Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000010792 warming Methods 0.000 abstract description 4
- 239000003063 flame retardant Substances 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 description 20
- 239000000463 material Substances 0.000 description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003818 cinder Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920005646 polycarboxylate Polymers 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000010430 carbonatite Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of gypsum slag foam cement and its warming plate and preparation method, the raw material of the cement is made up of the component of following mass percent：Slag 80 90%, desulfurated plaster 10 15%, plaster of Paris 0 10%, calcium hydroxide 0 10%, lime stone 0 10%.The raw material of the warming plate is made up of the component of following parts by weight：Cement 2,400 4000, flyash 140 1200, water 1,600 2400, foam stabilizer 20 60, water reducer 0 10, foaming agent 100 300, fiber 0 30.The advantage of the invention is that：Recycling is carried out to desulfurated plaster, largely using trade wastes such as slag, flyash, and production process energy-conserving and environment-protective, there is good economy and environmental benefit.In addition, foaming insulation board of the present invention has the characteristics that light, insulation, fire-retardant, sound-proof sound-absorbing, production cost is low, and technique is simple.
Description
Technical field
The invention belongs to energy-saving building materialses field, and in particular to a kind of using gypsum slag cement as major gelled material
Cement insulation board and preparation method thereof.
Background technology
In the ratio of major energy resource consumption, building energy consumption occupies higher proportion, and therefore, energy-saving building material certainly will
As the developing direction of building material from now on, high-efficiency insulated novel wall material is developed to reducing building energy consumption and reaching energy-conservation
Requirement suffer from great meaning.In exterior wall heat-preserving system, the insulation material generally used before is that EPS and XPS etc. has
Machine high polymer material.Although their excellent thermal insulation performances, have and inflammable, easy to aging come off, repair and change complexity etc. significantly
Shortcoming, it is particularly inflammable the defects of so that occur much to cause because of the fire disaster accident that causes of external wall insulation burning
Huge casualties and property loss.Another with pimpled rubber powder mortar made of the porous light-weight materials such as perlite, though
Solves fire safety problem, but its water absorption rate is higher, easily ftractures, so as to cause heat insulation effect bad.
Foam cement, it is to be mixed in proportion with water by foaming agent and high-speed stirred makes foam, and by foam and cement
Slurry uniformly mixing, then carries out cast-in-place construction or mould molding, the one kind formed through natural curing contains a large amount of sealed porositys
Novel light insulation material.Not only thermal conductivity factor is low for cement insulation board, high insulating effect, and does not burn, waterproof, with
Wall cohesive force is strong, and intensity is high, nonhazardous radiogen, environmental protection, has turned into wall thermal insulating at present and fire-blocking belt is preferable
Insulation material, but its feedstock silicate cement for using high energy consumption in preparation process, do not meet the requirement of energy-saving and emission-reduction.This
Outside, it is also higher using silicate series cement manufacture foam cement cost.
Desulfurated plaster and slag are all accessory substance or waste material in industrial production, its wide material sources, abundance but utilization
Rate is low.Product of the desulfurated plaster as coal fired thermal power plant wet lime-gypsum method flue gas desulfurization, it is a kind of extensive application prospect
Trade waste.Its main application direction is to prepare the production such as the coagulant of concrete, plasterboard, gypsum block, brushing gypsum
Product.The annual production of China's desulfurated plaster at present is about 60,000,000 tons, and utilization rate is about 83%, still has 10,200,000 tons to take off every year
Sulphur gypsum accumulates landfill because that can not utilize.Also, the products such as existing desulfurated plaster sheet material, building block have the notable of poor water resistance
Shortcoming.A kind of waste residue discharged when granulated blast-furnace slag is manUfaCtUre of pig iron from blast furnace.The yield of blast-furnace cinder is typically made a living
25%~50% or so of iron yield.China's pig iron yield in 2013 is 708,970,000 tons, estimates that annual caused blast-furnace cinder is total
Amount is at least more than 200,000,000 tons.The utilization rate of China's blast-furnace cinder is 85% or so at present, from the deslagging then of developed country
It is finished then, fully achieves recycling and also have larger distance.
By in the preparation of the cement applications prepared to cement insulation board, desulfurated plaster and smelting iron are efficiently utilized
The trade waste resource such as waste residue, realizes the recycling of resource, has green, cheap advantage, has promoted building energy conservation
Development.
Gypsum slag cement board prepared by the present invention is compared organic exterior wall such as the EPS being commonly used and XPS and protected
Adiabator, its fire resistance is good, reaches non-ignitable rank (i.e. A levels)；Secondly, compared to portland cement foam insulation board, its desulfurization
Gypsum calcining temperature (700 DEG C) substantially reduces relative to portland cement sintering temperature (1450 DEG C), effectively reduces the energy and disappears
Consumption, has good economic benefit.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of gypsum slag foam cement and by the cement
Manufactured warming plate, preferable cement is obtained by suitable match ratio, method and corresponding stabilizer by chemical blowing
Deng the pouring molding under relatively steady state, the excellent foaming of a kind of high-strength light, waterproof fireproofing, thermal and insulating performance is obtained
Warming plate.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of gypsum slag foam cement, its raw material are made up of the component of following mass percent：Slag 80-90%, take off
Sulphur gypsum 10-15%, plaster of Paris 0-10%, calcium hydroxide 0-10%, lime stone 0-10%.
Further, the desulfurated plaster is the desulfurated plaster through 700 DEG C of calcining 1h, and passes through levigate processing.
Further, the slag is S95 or S105 miberal powder.
The preparation method of above-mentioned gypsum slag foam cement, comprises the following steps：
(1) desulfurated plaster is after 700 DEG C of calcinings one hour and with standby after ball mill grinding 35min；
(2) combined addition plaster of Paris, calcium hydroxide and agstone are as clinker in proportion, through laboratory ball mill grinding
It is standby after 50min；
(3) desulfurated plaster, clinker, slag together grinding 1h are prepared into cement in proportion.
A kind of gypsum slag cement insulation board, its raw material are made up of the component of following parts by weight：Cement 2400-
4000th, flyash 140-1200, water 1600-2400, foam stabilizer 20-60, water reducer 0-10, foaming agent 100-300, fiber 0-
30；
The cement is above-mentioned gypsum slag foam cement.
Further, the foaming agent is that concentration is the hydrogen peroxide that mass concentration is 30%~40%.
Further, foam stabilizer used is calcium stearate.
Further, the water reducer is polycarboxylate water-reducer or naphthalene water reducer or aliphatic water reducing agent or other diminishings
One kind in agent.
Further, the fiber is the one of polypropylene fibre or glass fibre that length is 5-20mm or basalt fibre
Kind is several.
Further, the flyash is I levels or II grade of flyash；Water is running water.
The preparation method of above-mentioned gypsum slag cement insulation board, comprises the following steps：
(1) for powder-type water reducer, after cement, flyash, water reducer, fiber stir in proportion, add complete
The water in portion, stir 30s；For liquid-type water reducer, first water reducer is added in whole water and stirred, add cement,
Flyash, fiber, stir 30s；
(2) foam stabilizer is added in the mixture of step (1) and stirs 1min；
(3) foaming agent is added in the mixture that step (2) obtains, stirs 5~7s；
(4) mixture that step (3) obtains is stood into form removal after 24h in being poured into 3~6s in mould.
The cement insulation board that the present invention has obtained using gypsum slag cement as binder materials can not only be poured with scene
Note, may also be used for article of manufacture.Foaming degree is adjusted by changing foaming agent volume, insulation blocks can also be produced.
In the present invention, gypsum-slag is complex as major gelled material, and flyash collectively constitutes as auxiliary bonding component
With gypsum slag foam cement compound system.Calcining components in desulfurization gypsum is CaSO4, and then contain SiO in granulated slag2、
Al2O3, activity is higher, in the basic conditions, two kinds of excitation mechanisms be present：Alkali-activated carbonatite and sulphate activation.Gypsum will be used as sulfuric acid
Salt exciting agent makes slag aquation, and generation hydrated calcium aluminate sulfate compound is entringite (AFt) (3CaOAl2O3·3CaSO4·
32H2O) and low alkalinity hydrated calcium silicate C-S-H gels (chemical composition and form are not fixed, different with reaction condition and become
Change).Entringite is hydraulic material, will be effectively improved the water resistance of gypsum, and C-S-H gels will improve whole compound system
Intensity.And slag is may advantageously facilitate in the basic conditions decomposes generation calcium ion, aluminium ion and silicon ion, further reaction
Generate entringite and C-S-H gels.Entringite is the main matter that early strength is provided in silicate hydrates, and Different Alkali
Property environment under entringite yield will be caused different, thus basicity directly affects early stage strength of cement.When basicity is moderate, meet calcium alum
Stone formation condition, entringite are separated out and are filled into the space of solid particle, and then improve the density and intensity of Behavior of Hardened Cement Paste.Net
The C-S-H gels and part AFt, Ca (OH) of shape2Be interweaved and form compact texture together, a small amount of unhydrated slag powders and
Desulfurated plaster is filled in the hole of hardenite, greatly reduces the quantity of the macropore and intercommunicating pore in hardenite structure, so as to
Make binder materials that there is higher intensity and good water resistance.Flyash mainly contains substantial amounts of active SiO2And Al2O3,
Itself and cementitious composite use, and can give full play to both activity, the development to the early strength and later strength of whole system
Play very big effect.The addition of high efficiency water reducing agent can reduce overall water consumption, improve overall rheological characteristic and plasticity so that
Intensity improves.Polypropylene fibre can improve the rupture strength of component, reduce and shrink, prevent structure crack.The addition of foam stabilizer
The performance of foam cement can be improved, make the foam stabilization time longer.
The beneficial effects of the invention are as follows：
The present invention carries out recycling to desulfurated plaster, largely using trade wastes such as slag, flyash, and produces
Process energy conservation environmental protection, has good economy and environmental benefit.In addition, foaming insulation board of the present invention have light, insulation,
The features such as fire-retardant, sound-proof sound-absorbing, production cost is low, and technique is simple.
The foaming insulation board performance prepared using technical scheme is as follows：Dry density 225kg/m3, thermal conductivity factor
0.062W/ (mK), compression strength 0.56MPa, volume water absorption rate 7.5%.
Embodiment
The present invention is further described with reference to specific embodiment.
Embodiment 1
A kind of foaming insulation board using gypsum slag cement as major gelled material, its raw materials by weight portion, including with
Lower component：Cement 2800, flyash 1200, water 2080, calcium stearate 60, naphthalene water reducer (pulvis) 10, hydrogen peroxide 208,
Polypropylene fibre 20；Wherein, hydrogen peroxide uses mass concentration its quality is with H for 30% hydrogen peroxide2O2Meter；Polypropylene fibre
Length be 5-20mm, flyash is I level flyash, and water is running water.
Wherein, the raw material of cement is made up of the component of following mass percent：Slag 80%, desulfurated plaster 15%, building
Gypsum 3%, calcium hydroxide 1%, lime stone 1%.Wherein, slag is the miberal powder of S95 levels.
Its preparation method is：First by desulfurated plaster after 700 DEG C of calcinings one hour and with ball mill grinding 35min standby
With (calcined gypsum to improve cement early strength)；Combined addition plaster of Paris, calcium hydroxide and agstone are as ripe in proportion
Material, it is standby after the ball mill grinding 50min of laboratory；In proportion by desulfurated plaster, clinker, slag together grinding 1h, water is prepared
Mud.
After cement, flyash, water reducer, fiber stir in proportion, whole water is added, stirs 30s；Again will be hard
Resin acid calcium is added thereto, and stirs 1min；Hydrogen peroxide is added, stirs 6~7s；Enter mould in 3~6s, stand form removal after 24h.
The 7d compression strength of this foam cement is 0.42MPa, and 28d compression strength is 0.56MPa, dry density 250kg/
m3, thermal conductivity factor 0.065W/ (mK), volume water absorption rate 8%.
Embodiment 2
A kind of foaming insulation board using gypsum slag cement as major gelled material, its raw materials by weight portion, including with
Lower component：Cement 3200, flyash 800, water 2080, calcium stearate 60, polycarboxylate water-reducer (liquid) 10, hydrogen peroxide 208,
Polypropylene fibre 20；Wherein, hydrogen peroxide uses mass concentration its quality is with H for 40% hydrogen peroxide2O2Meter, polypropylene fibre
Length be 5-20mm, flyash is II grade of flyash, and water is running water.
Wherein, the raw material of cement is made up of the component of following mass percent：Slag 90%, desulfurated plaster 10%.Wherein,
Slag is the miberal powder of S105 levels.
Its preparation method is：First by desulfurated plaster after 700 DEG C of calcinings one hour and with ball mill grinding 35min standby
With (calcined gypsum to improve cement early strength)；In proportion by desulfurated plaster, slag together grinding 1h, cement is prepared.
Proportionally, first water reducer is added in whole water and stirred, add cement, flyash, fiber, stirred
30s；Calcium stearate is added thereto again, stirs 1min；Hydrogen peroxide is added, stirs 6~7s；Enter mould in 3~6s, after standing 24h
Form removal.
The 7d compression strength of this foam cement is 0.32MPa, and 28d compression strength is 0.46MPa, dry density 180kg/
m3, 0.055W/ (mK), volume water absorption rate 9%.
Embodiment 3
A kind of foaming insulation board using gypsum slag cement as major gelled material, its raw materials by weight portion, including with
Lower component：Cement 2400, flyash 140, water 1600, calcium stearate 40, hydrogen peroxide 300, glass fibre 30；Wherein, peroxide
Change hydrogen uses mass concentration, and for 35% hydrogen peroxide, its quality is with H2O2Meter, the length of glass fibre is 5-20mm, and flyash is
II grade of flyash, water are running water.
Wherein, the raw material of cement is made up of the component of following mass percent：Slag 85%, desulfurated plaster 12%, building
Gypsum 1%, calcium hydroxide 1%, lime stone 1%.Wherein, slag is S95 miberal powder.
Its preparation method is：First by desulfurated plaster after 700 DEG C of calcinings one hour and with ball mill grinding 35min standby
With (calcined gypsum to improve cement early strength)；Combined addition plaster of Paris, calcium hydroxide and agstone are as ripe in proportion
Material, it is standby after the ball mill grinding 50min of laboratory；In proportion by desulfurated plaster, clinker, slag together grinding 1h, water is prepared
Mud.
After cement, flyash, fiber stir in proportion, whole water is added, stirs 30s；By calcium stearate plus
Enter wherein, stir 1min；Hydrogen peroxide is added, stirs 6~7s；Enter mould in 3~6s, stand form removal after 24h.
Embodiment 4
A kind of foaming insulation board using gypsum slag cement as major gelled material, its raw materials by weight portion, including with
Lower component：Cement 4000, flyash 600, water 2400, calcium stearate 20, aliphatic water reducing agent (liquid) 5, hydrogen peroxide 100；
Wherein, hydrogen peroxide uses mass concentration its quality is with H for 30% hydrogen peroxide2O2Meter；Flyash is I level flyash, and water is
Running water.
Wherein, the raw material of cement is made up of the component of following mass percent：Slag 80%, desulfurated plaster 10%, lime
Stone 10%.Wherein, slag is S95 miberal powder.
Its preparation method is：First by desulfurated plaster after 700 DEG C of calcinings one hour and with ball mill grinding 35min standby
With (calcined gypsum to improve cement early strength)；By agstone after the ball mill grinding 50min of laboratory it is standby；In proportion
By desulfurated plaster, agstone, slag together grinding 1h, cement is prepared.
Proportionally, first water reducer is added in whole water and stirred, add cement, flyash, stir 30s；
Calcium stearate is added thereto again, stirs 1min；Hydrogen peroxide is added, stirs 6~7s；Enter mould in 3~6s, torn open after standing 24h
Mould.
Embodiment 5
A kind of foaming insulation board using gypsum slag cement as major gelled material, its raw materials by weight portion, including with
Lower component：Cement 3000, flyash 800, water 2000, calcium stearate 40, aliphatic water reducing agent (liquid) 10, hydrogen peroxide 200,
Fiber 15；Wherein, hydrogen peroxide uses mass concentration its quality is with H for 40% hydrogen peroxide2O2Meter；Fiber is polypropylene fibre
With the mixing of glass fibre, its length is 5-20mm；Flyash is I level flyash, and water is running water.
Wherein, the raw material of cement is made up of the component of following mass percent：Slag 80%, desulfurated plaster 10%, niter
Ash 10%.Wherein, slag is S95 miberal powder.
Its preparation method is：First by desulfurated plaster after 700 DEG C of calcinings one hour and with ball mill grinding 35min standby
With (calcined gypsum to improve cement early strength)；By lime after the ball mill grinding 50min of laboratory it is standby；In proportion will be de-
Sulphur gypsum, lime, slag grinding 1h together, prepare cement.
Proportionally, first water reducer is added in whole water and stirred, add cement, flyash, fiber, stirred
30s；Calcium stearate is added thereto again, stirs 1min；Hydrogen peroxide is added, stirs 6~7s；Enter mould in 3~6s, after standing 24h
Form removal.
Embodiment 6
A kind of foaming insulation board using gypsum slag cement as major gelled material, its raw materials by weight portion, including with
Lower component：Cement 2400, flyash 600, water 2400, calcium stearate 60, naphthalene water reducer (pulvis) 10, hydrogen peroxide 100 are fine
Dimension 30；Wherein, hydrogen peroxide uses mass concentration its quality is with H for 35% hydrogen peroxide2O2Meter；Fiber be polypropylene fibre and
The mixing of glass fibre, its length are 5-20mm；Flyash is I level flyash, and water is running water.
Wherein, the raw material of cement is made up of the component of following mass percent：Slag 80%, desulfurated plaster 10%, building
Gypsum 10%.Wherein, slag is S95 miberal powder.
Its preparation method is：First by desulfurated plaster after 700 DEG C of calcinings one hour and with ball mill grinding 35min standby
With (calcined gypsum to improve cement early strength)；By plaster of Paris after the ball mill grinding 50min of laboratory it is standby；In proportion
By desulfurated plaster, plaster of Paris, slag together grinding 1h, cement is prepared.
After cement, flyash, water reducer, fiber stir in proportion, whole water is added, stirs 30s；Again will be hard
Resin acid calcium is added thereto, and stirs 1min；Hydrogen peroxide is added, stirs 6~7s；
Enter mould in 3~6s, stand form removal after 24h.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
- A kind of 1. gypsum slag cement foaming insulation board, it is characterised in that：Its raw material is made up of the component of following parts by weight：Water Mud 2400-4000, flyash 140-1200, water 1600-2400, foam stabilizer 20-60, water reducer 0-10, foaming agent 100-300, Fiber 0-30；The cement is gypsum slag cement, and its raw material is made up of the component of following mass percent：Slag 80-90%, desulfurization stone Cream 10-15%, plaster of Paris 0-10%, calcium hydroxide 0-10%, lime stone 0-10%；The desulfurated plaster is through 700 DEG C of calcining 1h Desulfurated plaster, and pass through levigate processing；The slag is S95 or S105 miberal powder；The foam stabilizer is calcium stearate；The fiber is the one or more of the polypropylene fibre that length is 5-20mm or glass fibre or basalt fibre.
- 2. gypsum slag cement foaming insulation board as claimed in claim 1, it is characterised in that：The foaming agent is mass concentration For 30% ~ 40% hydrogen peroxide.
- 3. gypsum slag cement foaming insulation board as claimed in claim 1, it is characterised in that：The water reducer subtracts for polycarboxylic acids One kind in aqua or naphthalene water reducer or aliphatic water reducing agent.
- A kind of 4. preparation method of gypsum slag cement foaming insulation board as described in claim 1-3 is any, it is characterised in that： Comprise the following steps：（1）For powder-type water reducer, after cement, flyash, water reducer, fiber stir in proportion, add whole Water, stir 30s；For liquid-type water reducer, first water reducer is added in whole water and stirred, add cement, fine coal Ash, fiber, stir 30s；（2）Foam stabilizer is added into step（1）Mixture in stir 1min；（3）Foaming agent is added into step（2）In obtained mixture, 5 ~ 7s is stirred；（4）By step（3）Obtained mixture stands form removal after 24h in being poured into 3 ~ 6s in mould.
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| WO2020197986A1 (en) * | 2019-03-27 | 2020-10-01 | Washington State University | Conversion of gypsum waste into foamed construction material |
| CN113004055B (en) * | 2021-05-06 | 2023-03-10 | 太原龙投富思特新材料科技有限公司 | Green high-thermal-resistance self-insulation building block and preparation method thereof |
| CN114105559A (en) * | 2021-11-24 | 2022-03-01 | 石家庄铁道大学 | Green non-fired high-temperature-resistant cement-based material and preparation and detection methods thereof |
| CN115724640B (en) * | 2022-05-12 | 2024-04-19 | 东南大学 | Gypsum slag cement concrete and preparation method thereof |
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| CN102603245A (en) * | 2012-03-08 | 2012-07-25 | 上海天补建筑科技有限公司 | Composite foaming cement heat-insulation plate material |
| CN102815960A (en) * | 2012-08-09 | 2012-12-12 | 江苏尼高科技有限公司 | Composite foamed cement heat retaining panel using high-volume fly ash and preparation method thereof |
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