CN104193385A - Process for preparing composite foamed cement - Google Patents
Process for preparing composite foamed cement Download PDFInfo
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- CN104193385A CN104193385A CN201410363886.6A CN201410363886A CN104193385A CN 104193385 A CN104193385 A CN 104193385A CN 201410363886 A CN201410363886 A CN 201410363886A CN 104193385 A CN104193385 A CN 104193385A
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- 239000002131 composite material Substances 0.000 title claims abstract description 99
- 239000004568 cement Substances 0.000 title claims abstract description 90
- 238000004519 manufacturing process Methods 0.000 title abstract description 18
- 238000005187 foaming Methods 0.000 claims abstract description 125
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000003607 modifier Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 28
- 238000000465 moulding Methods 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 25
- 238000005516 engineering process Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 10
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 10
- 235000013539 calcium stearate Nutrition 0.000 claims description 10
- 239000001913 cellulose Substances 0.000 claims description 10
- 229920002678 cellulose Polymers 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 10
- 229920002401 polyacrylamide Polymers 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- 229910021487 silica fume Inorganic materials 0.000 claims description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 10
- 235000011152 sodium sulphate Nutrition 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 10
- 241000276489 Merlangius merlangus Species 0.000 claims description 8
- 239000008116 calcium stearate Substances 0.000 claims description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- -1 1.0 parts Chemical compound 0.000 claims description 2
- 241001417490 Sillaginidae Species 0.000 claims description 2
- 238000005703 Whiting synthesis reaction Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 27
- 239000006260 foam Substances 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 5
- 239000002002 slurry Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000001112 coagulating effect Effects 0.000 abstract 3
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000012467 final product Substances 0.000 description 5
- 239000004088 foaming agent Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000010883 coal ash Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
The invention discloses a process for preparing composite foamed cement. The process comprises the following steps: premixing, namely, uniformly mixing a gel material, lightweight aggregate and a multifunctional additive, subsequently preparing the above components into premix, and storing the premix in a storage tank for later use; foaming, namely, feeding the premixed premix and hot water into a stirring tank, stirring for 5 minutes, sequentially adding a composite modifier and an oxidant into the stirring tank, and continuously stirring for 5 minutes, thereby obtaining slurry; pre-coagulating, namely, filling the foamed slurry into a mold box of a pre-coagulating kiln, simultaneously supplying hot water into the pre-coagulating kiln continuously so as to foam and expand the slurry inside the mold box, thereby preparing the composite foamed cement, and standing the composite foamed cement in the mold box for 6-8 minutes, thereby forming a composite foamed cement initial set object; and demolding and cutting, namely, demolding and cutting the pre-coagulated composite foamed cement initial set object into a plate material, thereby preparing the formed composite foamed cement. The composite foamed cement prepared by using the process is high in mechanical strength, free of foaming, high in foaming strength, rapid to coagulate and dry, short in demolding time and free of maintenance period, can save the space, the energy, the labor and the time, and can be cut in a wet manner.
Description
Technical field
The present invention relates to a kind of preparation method of composite foaming cement, is a kind of preparation field of type material.
Background technology
Composite foaming cement is a member in concrete extended familys, as its name suggests, be that concrete is foamed or added foam, therefore it is called again foam cement, light weight concrete etc., is that a kind of profit is useless, environmental protection, energy-conservation, low-carbon (LC), economic, practical and fire-protection rating be the uninflammability novel building energy-saving material of A level.In recent years, all pay much attention to the research and development of composite foaming cement both at home and abroad, make its application in building neck city more and more wider.At present, composite foaming cement is with its good insulated fire characteristic, also be more and more widely used in, in building thermal insulation material, mainly containing in China: roof thermal-protecive coating is cast-in-place, flooring thermal insulation layer is cast-in-place, foundation ditch is filled cast-in-place, light cellular partition board and building exterior wall heat preserving plate etc.
Composite foaming cement of a great variety, but the most frequently used be cementitious composite foam cement.Cementitious composite foam cement can be divided into again the types such as concrete and coal ash type, cement+slag type, cement+sand mold, concrete and coal ash+sand mold, cement+fibrous type according to its adulterant difference.But no matter be what type, it all depends on foaming or foam, therefore foaming technique or foaming technique play a decisive role in composite foaming cement preparation.At present domestic existing or disclosed multiple foaming technique or foaming method are used, and also have multiple preparation technology to be used.As Chinese patent application 89102879X discloses 5. foam concrete and manufacturing process thereof of a kind of bubble taking polystyrene as foaming agent; Chinese patent application 03126980X discloses a kind of preparation method and its usage by refusing water foaming agent and make composite foaming cement; Chinese patent application 87163036A discloses a kind of composite foaming cement of making whipping agent with oil plant and preparation method thereof; Chinese patent application CN1704385A discloses a kind of foaming agent compound prescription being made up of number of chemical material and has made composite foaming cement through one special retort in situ preparation foaming agent.All this kind, each has something to recommend him, cut both ways, but be all mechanically as foaming machine, foam mixed with cement slurry and make composite foaming cement with existing whipping agent on market or self-control foaming agent, or cast-in-place or mould molding.Being all taking whipping agent as foaming raw material, taking foaming machinery as foaming means, is a kind of " mechanical foaming " method.The composite foaming cement preparation method of this kind of mechanical foaming is best suited for cast-in-place, also can only be applicable to dry cutting if be processed into warming plate.It has following feature: whipping agent is low by the expansion ratio of mechanical foaming, and bubble diameter is little, and bubble wall is thin, thereby does not also exceed at present 30cm for the foaming height of processing warming plate; Initial set (can the demoulding) time is long, and the general shortest time is also taken 3 days; Maintenance (can the dryly cut) time is just longer, and must not be less than 7 days general summer, and must not be less than 15 days winter.Therefore the composite foaming cement preparation method of this " mechanical foaming ", in the time of processing warming plate, needs a large amount of turnover moulding boxs; Need big area turnover place; Need a large amount of transhipments artificial; Final product is long turnround, and noise is large when dry cutting, dust is large; From modern enterprise standard, it is also not suitable for large-scale production, and production capacity is low, and unit cost is high, does not possess the market competitiveness, does not have by the widely used condition in market.
In fact, the material that can produce foam is a lot, and the method that can prepare foam is more, and be first to prepare foam to prepare again composite foaming cement, or foam preparing in during Concrete, not the key of preparing composite foaming cement sheet material.Most critical is how to improve production capacity, reduce costs, and whether the key of raising production capacity is how to improve foaming height, is how to shorten the presetting period, is how to shorten curing time, be can wet to cut.Therefore, explore a kind of brand-new composite foaming cement (sheet material) preparation technology and brand-new foaming mode thereof, realize that foaming height is high, the presetting period is short, the demoulding be wettablely cut, without preserving period, can pipelining, become the highest goal of scientific research personnel's unremitting pursue in the industry, be also the technical barrier of not yet going beyond at present simultaneously.
Summary of the invention
The present invention is directed to the technical barrier that above-mentioned production composite foamed cement insulation board exists, a kind of novel brand-new composite foaming cement (sheet material) new preparation process is provided.The present invention has designed a set of numerical control production-line technique, final product whole process only 25 minutes; The foaming technique of the multifunctional assistant and the composite modifier etc. that are made up of number of chemical material and cement slurry generation combination reaction has been proposed.The foaming height of composite foamed technology can reach 1.2 meters, is 4 times of mechanical foaming; Presetting period can be controlled in 8 minutes, was presetting period of 1/500(mechanical foaming of mechanical foaming method demould time to be the shortlyest no less than 3 days); Initial set gets final product the demoulding and wets and cut after 8 minutes; Need not preserving period.
The present invention realizes above-mentioned purpose like this: a kind of composite foaming cement new preparation process provided by the present invention comprises premix, foaming, pre-solidifying, the demoulding, wet cutting.
1) premix: gel material, light-weight aggregate, multifunctional assistant are made after being dry mixed evenly to Preblend and be stored in storage tank and used;
2) foaming: the Preblend in step 1), hot water are dropped in stirred pot and stirred, then add composite modifier, oxygenant successively in stirred pot, continue stirring and make slip;
3) solidifying in advance: by step 2) slip inject in the moulding box at pre-solidifying cellar for storing things, meanwhile, to pre-solidifying cellar for storing things supplying hot water, make the slip foaming and intumescing in moulding box, make composite foaming cement, will after standing the composite foaming cement in moulding box 6-8min, form just condensate of composite foaming cement;
The demoulding, cutting: by the just condensate demoulding of the composite foaming cement in step 3), the wet composite foamed cement insulation board that cuts into sheet material and make moulding.
Step 2) in hot water temperature be 30-60 DEG C, hot water weight accounts for the 5-30% of Preblend gross weight; Hot water temperature in step 3) is 80-120 DEG C, and hot water weight accounts for the 10-45% of slip gross weight.
Described gelating material is any one in cement, polyvinyl chloride, polystyrene; Light-weight aggregate is the lytag that granularity is greater than 80mm; Multifunctional assistant comprises SILICA FUME, water reducer, Tai-Ace S 150, fiber, graphite, sodium sulfate, Mierocrystalline cellulose, coarse whiting, phase transformation powder; Composite modifier comprises polyacrylamide, Quilonum Retard, rubber powder, calcium stearate, 801 glue, water glass, Zinic stearas emulsion; Oxygenant is hydrogen peroxide.
?by weight, gelating material is 60-100 part, and light-weight aggregate is 14-25 part, and multifunctional assistant is 25-45 part, and composite modifier is 3.5-7.5 part, and oxygenant is 8-14.5 part.More preferably by weight, gelating material is 80 parts, and light-weight aggregate is 20 parts, and multifunctional assistant is 30 parts, and composite modifier is 5.5 parts, and oxygenant is 10.5 parts.
In described multifunctional assistant each component by weight, SILICA FUME 1-5 part, water reducer 0.35-1.0 part, Tai-Ace S 150
0.45-1.56 part, fiber 0.01-0.042 part, graphite 0.58-0.95 part, sodium sulfate 0.45-1.6 part, Mierocrystalline cellulose 0.55-1.25 part, coarse whiting 0.5-2.5 part, phase transformation powder 1.25-4.35 part.
Further in multifunctional assistant each component by weight, 2 parts of SILICA FUME, 1.25 parts of water reducers, 0.9 part, Tai-Ace S 150,0.03 part of fiber, 0.75 part, graphite, 1.0 parts, sodium sulfate, 0.75 part of Mierocrystalline cellulose, 1.0 parts of coarse whitings, 3.0 parts, phase transformation powder.
In described composite modifier each component by weight, polyacrylamide 0.6-1.8 part, Quilonum Retard 0.01-0.04 part, rubber powder 0.005-0.035 part, calcium stearate 0.7-2.5 part, 801 rubber powder 0.7-1.5 parts, water glass 0.25-0.8 part, Zinic stearas emulsion 0.45-1.75 part.
Further be optimized in composite modifier each component by weight, 1.1 parts of polyacrylamides, 0.015 part of Quilonum Retard, 0.0125 part of rubber powder, 1.5 parts of calcium stearates, 801 1.5 parts of rubber powders, 0.5 part of water glass, 1.0 parts of Zinic stearas emulsions.
Of the present inventionly be a little:
1, composite foaming cement new preparation process of the present invention makes whole Production Flow Chart adopt pipelining; Whole production line adopts numerical control management.Mechanization degree is high: from being fed to the operation of final product full mechanization, production line operation workman only needs 8 people, and Production Flow Chart only needs 15 minutes.Level of automation is high: production line round Realization numerical control management.Automatic charging, automatic gauge, automatic temperature-controlled, automatic casting, automatic demoulding, surface trimming.
2, composite foaming cement new preparation process production capacity of the present invention is powerful, with low cost, and remarkable benefit, is mainly reflected in following aspect:
1. saving land, is 1 ∕ 5 of mechanical foaming method industrial land;
2. energy-conservation, only 50 kilowatts of the total electricity consumptions of a complete set of production process equipment, heat energy 80% uses sun power;
3. joint is artificial, is 1 ∕ 5 of mechanical foaming method production labor;
4. save resource, using great quantities of powdered coal ash, trade waste etc. are as light-weight aggregate; Produce time waste product and all recycle, three-waste free discharge;
5. high production capacity is 5 times of mechanical foaming method production capacity;
6. low cost is 1 ∕ 3 of mechanical foaming method cost.
3, prepared composite foaming cement and the prepared composite foaming cement of mechanical foaming method of inorganic composite foamed technology of the present invention is basically identical on product performance and Specifications, without larger difference.But the advantage of composite foamed technology in process of producing product is far longer than mechanical foaming method, main reflection in the following areas:
1. without whipping agent, without foaming machine.
2. foaming height is high.The bubble diameter of chemical combination foaming is tiny even and controlled, and bubble wall thickness is real balanced and controlled, and therefore, composite foamed height can reach 1.2 meters, and this is that mechanical foaming cannot be realized.Because the foaming height of mechanical foaming is determined by expansion ratio, and composite foamed foaming height is determined by foaming bubble amount.
3. rapid hardening quick-drying.The major function of multifunctional assistant is to accelerate solidifying of composite foaming cement through complex reaction, shortens its freezing period; The amount of heat discharging in complex reaction process interacts with pre-solidifying kiln, accelerates the dry of composite foaming cement.Its presetting period can foreshorten to 8 minutes, and this is that mechanical foaming method can not reach.
4. demould time is short.Can the demoulding after initial set wet and cut.Can the demoulding in 8 minutes and the cutting of can wetting, be 1/500 of mechanical foaming method demould time.This is that mechanical foaming method can not realize.
5. without preserving period.The major function of composite modifier is the cement proterties that has changed composite foaming cement through complex reaction, and maintenance processes substantially completes in the production process of final product, without maintenance again.It is 1/1200 of mechanical foaming method curing time.This is that mechanical foaming method is inconceivable.
6. wettable cutting.Presetting period is short, and the demoulding is wettable cutting, for pipelining provides precondition; Wet cut noiselessness, without dust, can realize enviromental protection enterprise and environmentfriendly products truly.This is also that mechanical foaming method can not be accomplished.
4, the bubble diameter of the prepared composite foaming cement of inorganic composite foamed technology of the present invention is tiny evenly, bubble wall thickness is real balanced and can adjust formula and control its bubble diameter size and bubble wall thickness, and the composite foaming cement product that therefore obtained has mechanics and the thermal properties such as mechanical foaming method is better incubated, fire prevention, sound insulation.
Brief description of the drawings
Fig. 1 composite foaming cement preparation technology of the present invention schema.
Embodiment
embodiment 1
1) premix: by 63kg cement, 25kg lytag, 4kg SILICA FUME, 0.55kg water reducer, 1.5kg Tai-Ace S 150,0.01kg fiber, 0.60kg graphite, 0.58kg sodium sulfate, 0.58kg Mierocrystalline cellulose, 2.0kg coarse whiting, phase transformation powder 1.6g makes Preblend and is stored in storage tank and is used after being dry mixed evenly;
2) foaming: by the Preblend in step 1), the hot water of 40 DEG C drop into stir in stirred pot 5 minutes (wherein the hot water of 40 DEG C account for Preblend quality 30%), in stirred pot, add 0.68kg polyacrylamide, 0.01kg Quilonum Retard successively again, 0.035kg rubber powder, 0.75kg calcium stearate, 0.75kg801 rubber powder, 0.45kg water glass, 0.55kg Zinic stearas emulsion, 8.3kg mass concentration is 12.5% oxygenant, continues to stir within 5 minutes, to make slip;
3) solidifying in advance: by step 2) in slip inject in the moulding box at pre-solidifying cellar for storing things, simultaneously, supply with to pre-solidifying cellar for storing things 83 DEG C of hot water (wherein the hot water of 83 DEG C account for Preblend quality 12%), make the slip foaming and intumescing in moulding box reach 1.2 meters, make composite foaming cement, will after standing the composite foaming cement in moulding box 8min, form just condensate of composite foaming cement;
4) demoulding, cutting: by the just condensate demoulding of the composite foaming cement in step 3), the wet composite foaming cement that cuts into sheet material and make moulding.
embodiment 2
1) premix: by 80kg cement, 20kg lytag, 2kg SILICA FUME, 1.25kg water reducer, 0.9kg Tai-Ace S 150,0.03kg fiber, 0.75kg graphite, 1.0kg sodium sulfate, 0.75kg Mierocrystalline cellulose, 1.0kg coarse whiting, phase transformation powder 3.0g makes Preblend and is stored in storage tank and is used after being dry mixed evenly;
2) foaming: by the Preblend in step 1), the hot water of 65 DEG C drop into stir in stirred pot 5 minutes (wherein the hot water of 65 DEG C account for Preblend quality 22%), in stirred pot, add 1.1kg polyacrylamide, 0.015kg Quilonum Retard successively again, 0.0125kg rubber powder, 1.5kg calcium stearate, 1.5kg801 rubber powder, 0.5kg water glass, 1.0kg Zinic stearas emulsion, 10.5kg mass concentration is 12.5% oxygenant, continues to stir within 5 minutes, to make slip;
3) solidifying in advance: by step 2) in slip inject in the moulding box at pre-solidifying cellar for storing things, simultaneously, supply with to pre-solidifying cellar for storing things 100 DEG C of hot water (wherein the hot water of 100 DEG C account for Preblend quality 22%), make the slip foaming and intumescing in moulding box reach 1.5 meters, make composite foaming cement, will after standing the composite foaming cement in moulding box 12min, form just condensate of composite foaming cement;
4) demoulding, cutting: by the just condensate demoulding of the composite foaming cement in step 3), the wet composite foaming cement that cuts into sheet material and make moulding.
embodiment 3
1) premix: by 95.5kg polyvinyl chloride, 24.3kg lytag, 4.5kg SILICA FUME, 0.35kg water reducer, 0.48kg Tai-Ace S 150,0.023kg fiber, 0.64kg graphite, 1.35kg sodium sulfate, 1.03kg Mierocrystalline cellulose, 0.76kg coarse whiting, phase transformation powder 1.33g makes Preblend and is stored in storage tank and is used after being dry mixed evenly;
2) foaming: by the Preblend in step 1), the hot water of 60 DEG C drop into stir in stirred pot 5 minutes (wherein the hot water of 60 DEG C account for Preblend quality 16%), in stirred pot, add 0.1.72kg polyacrylamide, 0.04kg Quilonum Retard successively again, 0.033kg rubber powder, 1.65kg calcium stearate, 1.5kg801 rubber powder, 0.8kg water glass, 1.55kg Zinic stearas emulsion, 8.8kg mass concentration is 12.5% oxygenant, continues to stir within 5 minutes, to make slip;
3) solidifying in advance: by step 2) in slip inject in the moulding box at pre-solidifying cellar for storing things, simultaneously, supply with to pre-solidifying cellar for storing things 83 DEG C of hot water (wherein the hot water of 83 DEG C account for Preblend quality 40%), make the slip foaming and intumescing in moulding box reach 1.2 meters, make composite foaming cement, will after standing the composite foaming cement in moulding box 8min, form just condensate of composite foaming cement;
4) demoulding, cutting: by the just condensate demoulding of the composite foaming cement in step 3), the wet composite foaming cement that cuts into sheet material and make moulding.
embodiment 4
1) premix: by 75kg polystyrene and 20kg cement, 22.5kg lytag, 2.3kg SILICA FUME, 0.88kg water reducer, 0.94kg Tai-Ace S 150,0.022kg fiber, 0.69kg graphite, 0.83kg sodium sulfate, 0.92kg Mierocrystalline cellulose, 1.85kg coarse whiting, phase transformation powder 3.54g makes Preblend and is stored in storage tank and is used after being dry mixed evenly;
2) foaming: by the Preblend in step 1), the hot water of 55 DEG C drop into stir in stirred pot 5 minutes (wherein the hot water of 55 DEG C account for Preblend quality 7%), in stirred pot, add 1.28kg polyacrylamide, 0.028kg Quilonum Retard successively again, 0.026kg rubber powder, 1.85kg calcium stearate, 1.5kg801 rubber powder, 0.78kg water glass, 1.7kg Zinic stearas emulsion, 14.5kg mass concentration is 12.5% oxygenant, continues to stir within 5 minutes, to make slip;
3) solidifying in advance: by step 2) in slip inject in the moulding box at pre-solidifying cellar for storing things, simultaneously, supply with to pre-solidifying cellar for storing things 83 DEG C of hot water (wherein the hot water of 83 DEG C account for Preblend quality 43%), make the slip foaming and intumescing in moulding box reach 1.8 meters, make composite foaming cement, will after standing the composite foaming cement in moulding box 8min, form just condensate of composite foaming cement;
4) demoulding, cutting: by the just condensate demoulding of the composite foaming cement in step 3), the wet composite foaming cement that cuts into sheet material and make moulding.
Claims (9)
1. a preparation technology for composite foaming cement, is characterized in that, comprise the steps,
Premix: gel material, light-weight aggregate, multifunctional assistant are made after being dry mixed evenly to Preblend and be stored in storage tank and used;
Foaming: the Preblend in step 1), hot water are dropped in stirred pot and stirs 5min, then add composite modifier, oxygenant successively in stirred pot, continue to stir 5min and make slip;
Pre-solidifying: by step 2) in slip inject in the moulding box at pre-solidifying cellar for storing things, meanwhile, to pre-solidifying cellar for storing things supplying hot water, make the slip foaming and intumescing in moulding box, make composite foaming cement, will after standing the composite foaming cement in moulding box 6-8min, form just condensate of composite foaming cement;
The demoulding, cutting: by the just condensate demoulding of the composite foaming cement in step 3), the wet composite foaming cement that cuts into sheet material and make moulding.
2. the preparation technology of composite foaming cement according to claim 1, is characterized in that: described gelating material is any one in cement, polyvinyl chloride, polystyrene; Light-weight aggregate is the lytag that granularity is greater than 80mm; Multifunctional assistant comprises SILICA FUME, water reducer, Tai-Ace S 150, fiber, graphite, sodium sulfate, Mierocrystalline cellulose, coarse whiting, phase transformation powder; Composite modifier comprises polyacrylamide, Quilonum Retard, rubber powder, calcium stearate, 801 glue, water glass, Zinic stearas emulsion; Oxygenant is hydrogen peroxide.
3. the preparation technology of composite foaming cement according to claim 1, is characterized in that: step 2) in hot water temperature be 30-60 DEG C, hot water weight accounts for the 5-30% of Preblend gross weight; Hot water temperature in step 3) is 80-120 DEG C, and hot water weight accounts for the 10-45% of slip gross weight.
4. the preparation technology of composite foaming cement according to claim 1 and 2, is characterized in that: by weight, gelating material is 60-100 part, light-weight aggregate is 14-25 part, multifunctional assistant is 25-45 part, and composite modifier is 3.5-7.5 part, and oxygenant is 8-14.5 part.
5. the preparation technology of composite foaming cement according to claim 1 and 2, is characterized in that: by weight, gelating material is 80 parts, and light-weight aggregate is 20 parts, and multifunctional assistant is 30 parts, and composite modifier is 5.5 parts, and oxygenant is 10.5 parts.
6. the preparation technology of composite foaming cement according to claim 2, it is characterized in that: in multifunctional assistant each component by weight, SILICA FUME 1-5 part, water reducer 0.35-1.0 part, Tai-Ace S 150 0.45-1.560.9 part, fiber 0.01-0.042 part, graphite 0.58-0.95 part, sodium sulfate 0.45-1.6 part, 0.55-1.25 part of Mierocrystalline cellulose, coarse whiting 0.5-2.5 part, phase transformation powder 1.25-4.35 part.
7. the preparation technology of composite foaming cement according to claim 2, it is characterized in that: in multifunctional assistant each component by weight, 2 parts of SILICA FUME, 1.25 parts of water reducers, 0.9 part, Tai-Ace S 150,0.03 part of fiber, 0.75 part, graphite, 1.0 parts, sodium sulfate, 0.75 part of Mierocrystalline cellulose, 1.0 parts of coarse whitings, 3.0 parts, phase transformation powder.
8. the preparation technology of composite foaming cement according to claim 2, it is characterized in that: in composite modifier, each component by weight, polyacrylamide 0.6-1.8 part, Quilonum Retard 0.01-0.04 part, rubber powder 0.005-0.035 part, calcium stearate 0.7-2.5 part, 801 rubber powder 0.7-1.5 parts, water glass 0.25-0.8 part, Zinic stearas emulsion 0.45-1.75 part.
9. the preparation technology of composite foaming cement according to claim 2, it is characterized in that: in composite modifier, each component by weight, 1.1 parts of polyacrylamides, 0.015 part of Quilonum Retard, 0.0125 part of rubber powder, 1.5 parts of calcium stearates, 801 1.5 parts of rubber powders, 0.5 part of water glass, 1.0 parts of Zinic stearas emulsions.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104557121A (en) * | 2015-01-12 | 2015-04-29 | 富思特新材料科技发展股份有限公司 | Foam cement heat preservation plate and preparation method thereof |
| CN105060802A (en) * | 2015-07-24 | 2015-11-18 | 天津市宇乐科技有限公司 | Light partition wallboard and preparation method therefor |
| CN108890868A (en) * | 2018-07-25 | 2018-11-27 | 江苏友顺节能科技有限公司 | A kind of exterior-wall heat insulation board assembly line |
| CN111470836A (en) * | 2020-06-11 | 2020-07-31 | 陕西拉发纪新材料科技有限公司 | Acid corrosion resistant spray material suitable for construction of dimeric opencut coal mine and preparation method thereof |
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| CN103508711A (en) * | 2012-06-28 | 2014-01-15 | 沈阳红姗石建筑装饰材料有限公司 | High-performance foam concrete insulation board and preparation method thereof |
| CN203600401U (en) * | 2013-12-05 | 2014-05-21 | 孙海霞 | Initial set kiln special for foam concrete |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104557121A (en) * | 2015-01-12 | 2015-04-29 | 富思特新材料科技发展股份有限公司 | Foam cement heat preservation plate and preparation method thereof |
| CN105060802A (en) * | 2015-07-24 | 2015-11-18 | 天津市宇乐科技有限公司 | Light partition wallboard and preparation method therefor |
| CN108890868A (en) * | 2018-07-25 | 2018-11-27 | 江苏友顺节能科技有限公司 | A kind of exterior-wall heat insulation board assembly line |
| CN111470836A (en) * | 2020-06-11 | 2020-07-31 | 陕西拉发纪新材料科技有限公司 | Acid corrosion resistant spray material suitable for construction of dimeric opencut coal mine and preparation method thereof |
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