CN1155538C - Non-steam cured foamed concrete plate - Google Patents
Non-steam cured foamed concrete plate Download PDFInfo
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- CN1155538C CN1155538C CNB991146379A CN99114637A CN1155538C CN 1155538 C CN1155538 C CN 1155538C CN B991146379 A CNB991146379 A CN B991146379A CN 99114637 A CN99114637 A CN 99114637A CN 1155538 C CN1155538 C CN 1155538C
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- Prior art keywords
- cement
- weight
- water
- add
- whipping agent
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- 239000011381 foam concrete Substances 0.000 title claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010881 fly ash Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 239000004576 sand Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000012745 toughening agent Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 229910000737 Duralumin Inorganic materials 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000004088 foaming agent Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010025 steaming Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 17
- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 238000005187 foaming Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000004567 concrete Substances 0.000 description 7
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 235000011132 calcium sulphate Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001007 puffing effect Effects 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000019739 Dicalciumphosphate Nutrition 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- NEFBYIFKOOEVPA-UHFFFAOYSA-K dicalcium phosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])([O-])=O NEFBYIFKOOEVPA-UHFFFAOYSA-K 0.000 description 1
- 229940038472 dicalcium phosphate Drugs 0.000 description 1
- 229910000390 dicalcium phosphate Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011464 hollow brick Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- MRVATQWXALDVFU-UHFFFAOYSA-N hydrogen peroxide;oxalic acid Chemical compound OO.OC(=O)C(O)=O MRVATQWXALDVFU-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 is vitreum Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000011371 regular concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
- C04B2111/1025—Alkali-free or very low alkali-content materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a non-steaming cured foam concrete panel, which comprises the following components: 40 to 60 portions of low-alkali cement, 25 to 40 portions of fly ash, 0.4 to 0.7 portions of fibre and 1.8 to 3 portions of foaming agents, wherein the foaming agents comprise the following components according to the proportion by weight: 94 to 99% of liquor hydrogen peroxide (baume degree is 25 DEG), 1 to 6% of oxalic acid (concentration is 99%), and water; the ratio of the water and the total amount of the other components is 50-60 to 100 (weight proportion). The present invention has the characteristics of short stripping time, natural curing, no air entrainment, no steaming, no maintenance, low production cost, high intensity, stable quality and good sound insulation and thermo insulation performance.
Description
The invention belongs to porous mortar, concrete product technical field, be specifically related to a kind of non-steam cured foamed concrete plate.
Along with improving constantly of living standards of the people, the dwelling house class requires more and more higher, reconstruction of the old city town, new city construction, high-rise, high-rise building is old go out not poor, in order to alleviate the load holding capacity in house, reduce the comprehensive cost in house, save the refrigeration insulation energy, economize the land resource nation-building portion, all corresponding dispatch of each place capital construction commission, forbid clay brick, the production and the use of restriction shale hollow brick.Because this class brick had both been wasted earth, heavy again, it is poor to be incubated, and the cost height.(1995) No. 4 literary compositions of Ministry of Finance's State Tax Administration's property tax word have sent about part comprehensive utilization of resources, product being exempted the notice of value-added tax simultaneously, preferential policy such as regulation " ... utilize the brick, gas concrete, building block, haydite, wallboard etc. of the production of coal gangue, sand, coal slime, flyash (slag) etc. and other waste residues, exempt value-added tax without exception " wherein.Foamed concrete has received great concern from the weight that alleviates concrete member and the angle of save energy.Representative is light weight concrete (ALC) sheet material that adopts the steam-cured method of aerating to make, its usually adopts be foaming or in advance foam forms obtain grout, after cast, the demoulding, under hydrothermal solution and pressure condition, in a hot pressing container, make through the maintenance solidifying product.The shortcoming of the existence of this class sheet material is: (1) technology is numerous and diverse, finishes the length that expends time in from the batch mixing to the maintenance, and it is many to expend the energy.(2) required aerating steaming and cultivating equipment-steam-cured still, investment is big, and technical requirements height, and under certain situation generally can only the production building block, can not be suitable for the needs of producing various heterotype profiled sheets, very flexible.(3) the sheet material bubble hole of being produced is the string hole, and heat-insulation and heat-preservation and soundproof effect are bad.(4) be difficult to the intensity that reaches enough simultaneously satisfying light-weight.In order to overcome the deficiency of aerating steam-curing concrete, Ningbo City north weary northern southern New Building Materials Manufacturing Co., Ltd has developed a kind of light sound-proof wallboard, it carries out emulsification modification processing with industrial glue, magnesium chloride saltwater brine and makes gelifying agent with flyash, magnesium oxide, Portland cement core making filler; Make puffing foaming liquid with rosin, industrial gelatine, sodium hydroxide, puffing foaming agent water, above-mentioned three kinds of compositions are dropped into by metering make the foaming mashed prod again, lay aggregate on cast limit, mould top then, the final curing demoulding forms.This wallboard makes wallboard reach the light-weight effect owing to adopted whipping agent and some relevant auxiliary agents, does not need aerating steam-cured.Though this sheet material has overcome the some shortcomings of ALC, it has adopted magnesium chloride saltwater brine and magnesium oxide is raw material, goods physicals instability, and anti-halogen phenomenon can appear in goods when having a humid climate, and influences finished product quality and outward appearance.
Based on above-mentioned many deficiencies of existing foamed concrete, the object of the invention provides a kind of demould time end, and natural curing does not need the aerating steam curing conservation, and low cost of manufacture please be read height, steady quality, sound insulation, well-insulated non-steam cured foamed concrete plate.
To achieve these goals, non-steam cured foamed concrete plate of the present invention is selected following component (weight part) for use:
Low alkali cement 40-60 part, flyash 25-40 part, fiber 0.4-0.7 part, whipping agent 1.8-3 part.
In addition, the ratio with the weight of water and above-mentioned each component total amount is 50-60: 100 parts add water.
Wherein, the concrete composition of whipping agent is (weight %): Liquor Hydrogen Peroxide (25 ° of degree Beaume) 94-99%, oxalic acid (concentration 99%) 1-6%.
By following explained hereafter: add water at first in proportion and go in the stirrer, add fiber again, fiber is fully relaxed, add flyash, cement again, add at last, discharging casting behind the mix as whipping agent; Second step was the demoulding, and the 3rd step was natural curing.
Cement is selected fast duralumin acid salt cement, is that initial set is no earlier than 20 minutes to the requirement of this type of cement, and final set was earlier than 3 hours, and intensity should be greater than more than 90% of corresponding label in 3 days.
For intensity and the homogeneity that improves goods, this concrete plate also can add river sand 1-25 weight part, water reducer, dispersion agent or toughener: the 1-3 weight part.
For selecting for use of each composition, consideration of the present invention is:
1 cement: cement is inorganic coagulation material, is the intensity main source of this product, wants demould time short for reaching the present invention, the purpose that intensity is high, and the cement palpus early strength height that requirement is selected for use, it is fast to condense.Therefore, standard according to ZBD11005-87, the present invention has selected the low alkali cement of quick hardening sulphoaluminate cement or other kind especially for use, wherein quick hardening sulphoaluminate cement is based on anhydrous calcium sulphoaluminate and Dicalcium Phosphate (Feed Grade), this two classes cement all has initial set and is no earlier than 25 minutes, final set was earlier than 3 hours, and intensity was greater than the performance of corresponding label more than 90% in 3 days.Its setting and harden process is can be just in time consistent with the distinctive whipping agent of the present invention process of getting angry, and it is little to produce unit weight, the product that intensity is high.
2, whipping agent: in non-steam cured foamed concrete plate, whipping agent is a kind of important substance, because the non-steam-cured characteristic that this sheet material requires, it is big to require whipping agent to have gas production rate, and expansion rate is suitable, the feature that consumption is little.Because slip is transferred out gas at chemical reaction after injecting mould, make mass expanded, the setting and harden of gelling material (being cement) beginning simultaneously, if foaming is fast, setting and harden is slow, the inner pore that forms of slip subsides because of deadweight and overflows; Slow if get angry, fast solidifying, the foam rate of expansion is low or crackle occurs or expand not.Therefore, only get angry that process is consistent with the setting and harden process coordinating just to produce ideal product.To STUDY ON FOAMING AGENT, all once did many explorations in international the mistake, for example the electricity consumption acetylene gas that gets made of stones; Make hydrogen etc. with iron silicide and some active metals, but because there are many unfavorable factors such as cost, gas production rate and technology controlling and process in these gas methods, the difficult people's will to the greatest extent of effect in mass production of products.The present invention has adopted Liquor Hydrogen Peroxide and oxalic acid to form whipping agent, and the mechanism that it and sulfate cement are starched is as follows: Liquor Hydrogen Peroxide in the whipping agent and the anhydrous slufuric acid aluminium in the cement can be emitted a large amount of oxygen in the chemical combination process, grout is played foaming effect.Calcareous reaction in oxalic acid and the cement generates caoxalate.After cement is met water, anhydrous calciumsulphate again with cement in another component calcium sulfate reaction form ettringite, it is very hard and stable, thereby the product strength height.This whipping agent can form the system that makes solid-liquid-gas three things coexistence in cement slurry.As not adding this whipping agent, this system will be unstable, and gas will overflow, and solid will precipitate, water will be secreted, thereby can not form the homodisperse state of porous, and add this whipping agent, then can reduce the surface strength of flyash, cement foamed slip, improve guarantor's gas ability of slip, solid particulate is adsorbed on around the bubble, avoids solid particles sediment, form solid-liquid-gas three-phase porous dispersed system effectively.In addition, what of whipping agent incorporation, to slip pore size and homogeneity, and the physical and mechanical property of finished product, sound-absorption and heat-insulation performance all have a significant effect.The present invention has selected best incorporation.
3. flyash:
Particle in the flyash is in the majority with the spherical glass body, and specific surface area is big, and its mineral composition mainly is vitreum, quartz and a small amount of unburned carbon granules.Be used in and make walling reach the light purpose of unit weight in the present technique,, reduce production costs simultaneously as a kind of filler.
4. fiber
Adopt the modified PVA fiber, to improve tensile strength, the epistasis modulus of walling.
5. river sand:
This component for selecting component, when selecting it for use, will be increased and decreased on consumption with it by flyash in the present invention mutually.Adding it is for increasing the intensity of walling, but add-on too much can cause walling unit weight to increase, and reaches not light-weight purpose.Therefore the present invention is limited to its consumption in per 100 parts of ash material and contains in the scope of river sand 1-25 part.
6. water:
Water is the medium as hydrated cementitious and moulding, its role is to regulate the concentration of slip and the performance of goods, high water-cement ratio slip easy-formation, and easily foaming, but intensity is low; The low water-cement ratio slip flows living poor, and the gas that whipping agent is emitted is easily resistance in expansion process, and goods inside is prone to crackle or unit weight is big, and therefore, mixing of water must be an amount of.The present invention has selected preferable water cement ratio 50-60 for use: 100 parts.
7. dispersion agent, toughener or water reducer:
These several auxiliary agents are selection component of the present invention, are used to improve the intensity and the homogeneity of goods, add as required.
The present invention is identical with the technology of making conventional walling aspect production technique, at first be to add water by the water cement ratio example to go in the stirrer, add fiber again, ceaselessly open anti-ahead running, fiber is fully relaxed, add flyash, cement, river sand etc. again, add whipping agent at last, mix discharging cast molding about 1 minute; Second step was the demoulding, and the 3rd step was natural curing.Whole process is all finished at normal temperatures and pressures.Process aspect should note following some:
1. envrionment temperature and water
Optimum envrionment temperature should be more than 15 ℃, if temperature is too low, foamed time can prolong, and the demoulding is slow, so must adjust whipping agent and prescription or improve water temperature or the indoor heating in workshop when temperature is lower than 15 ℃.
2. go into the mould time
Should inject mould immediately after slip is mixed, shorten " ineffective time " as far as possible.After whipping agent adding in a single day, chemical reaction takes place immediately, begin to emit gas, to go into the mould time if prolonged, the inner established pore of slip can lose in going into mold process, will waste a part of gas, does not reach foaming effect.
Because the present invention has done above-mentioned sufficient consideration to the selection of each component and consumption, so the present invention is had the following advantages:
1. the present invention is owing to selected for use the low alkali cement of quick hardening sulphoaluminate cement or other kind to be equipped with special whipping agent, make the foaming process and the setting and harden process of cement reach harmonious, product is compared with the other products with volume, lighter unit weight is promptly arranged, more excellent intensity is arranged again.
2. because rationally selecting for use of component makes the demould time of product short, got final product the demoulding in general three hours, do not take mould for a long time, enhance productivity greatly.
3. product only needs natural curing, and overcome aerating and steamed the many power consumptions source that still, the consumption manpower, investment is big, and the shape of product of production is subjected to many shortcomings such as steam-cured still restriction, realizes energy-conservation, joint power, saves the diversified advantage of assets product.
4. manufacturing process is simple, and required power has only grey sand agitator and mould, and equipment is few.
Below be embodiments of the invention: (kilogram)
| Aluminosulfate cement | Low alkali cement | Flyash | Sand | Fiber | Whipping agent | Water reducer | Dispersion agent | Toughener | Water | |
| 1 | 43 | 34 | 19.5 | 0.4 | 2.1 | 1 | 50 | |||
| 2 | 45 | 28 | 21.6 | 0.4 | 2 | 3 | 50 | |||
| 3 | 49 | 32 | 16.4 | 0.4 | 2.2 | 50 | ||||
| 4 | 52 | 33 | 12.2 | 0.5 | 2.3 | 60 | ||||
| 5 | 54 | 34 | 8 | 0.6 | 2.4 | 1 | 60 | |||
| 6 | 56 | 35 | 3.8 | 0.7 | 2.5 | 2 | 60 | |||
| 7 | 56.8 | 40 | 0.7 | 2.5 | 60 | |||||
| 8 | 60 | 34.6 | 0.7 | 2.7 | 2 | 60 | ||||
| 9 | 60 | 33.5 | 1 | 0.7 | 2.8 | 2 | 60 | |||
| 10 | 40 | 32.5 | 25 | 0.7 | 1.8 | 60 | ||||
| 11 | 57 | 25 | 14.3 | 0.7 | 3 | 60 |
Consisting of of whipping agent wherein: (weight %)
Liquor Hydrogen Peroxide oxalic acid
99％ 1％
97％ 3％
96％ 4％
94％ 6％
Among the embodiment:
1. aluminosulfate cement is selected 525 cement in Jiajiang cement mill, Leshan, Sichuan for use.
2. low alkali cement is selected 525 cement in cement mill, Nanning for use.
3. flyash is pressed " electric power board " flyash of slope, Kowloon, GB1598-91 standard application Chongqing power plant.
4. river sand is to select for use by the standard and the method for inspection of building the JGI52-92 of Ministry of worker standard-be regular concrete sand quality.
5. fiber selects for use Sichuan to tie up the close synthetic fibre product M-PVA of factory, measures through Suzhou cement products research institute, and its result is as follows: tensile strength 88MPa, epistasis modulus 20MPa extension limit 8.56%.
This product detects through Chongqing City's quality supervision of construction engineering inspection center, examining report number: NO980751, its conclusion is: institute's inspection project reaches the technical requirement of JC/T3029-1995 prescribed by standard, and is qualified.
The particular case that detects is as follows:
| Interventions Requested | Technical indicator | Assay | Conclusion |
| Area density, kg/m | ≯ 60 | 41.6 | Qualified |
| Bending resistance destroys lotus and cuts kg | ≯ plate deadweight 74.9 * 0.75 | 66.5 | Qualified |
| Resistance to impact shock | 30kg sand pocket drop 0.5m, swing is impacted three times, through check do not occur. | 30kg sand pocket drop 0.5m, swing is impacted three times, through check do not occur. | Qualified |
| The single-point hanging force | Be subjected to 800N single-point hanging force effect 24h, through check do not occur. | Be subjected to 800N single-point hanging force effect 24h, through check do not occur. | Qualified |
| Incendivity | Be non-combustible | Be non-combustible | Qualified |
| Drying shrinkage value mm/m | ≯ 0.8 | ≯ 0.6 | Qualified |
| Thermal conductivity, w/mk | 0.14 | 0.122 | Qualified |
Claims (3)
1, non-steam cured foamed concrete plate, contain the component of following weight:
Low alkali cement: 40-60 part
Flyash: 25-40 part
Fiber: 0.4-0.7 part
Whipping agent: 1.8-3 part
Wherein, whipping agent is made up of following component in percentage by weight: the Liquor Hydrogen Peroxide 94-99% that degree Beaume is 25 °, and the oxalic acid 1-6% of concentration 99%,
Other adds water, and the ratio of the weight of water and above-mentioned each component total amount is 50-60: 100 parts;
By following explained hereafter: at first add water and go in the stirrer, add fiber again, fiber is fully relaxed, add flyash, cement again, add at last, discharging casting behind the mix as whipping agent; Second step was the demoulding, and the 3rd step was natural curing.
2, non-steam cured foamed concrete plate according to claim 1 is characterized in that it contains river sand 1-25 weight part, water reducer, dispersion agent or toughener: the 1-3 weight part.
3, non-steam cured foamed concrete plate according to claim 1 is characterized in that cement selects fast duralumin acid salt cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991146379A CN1155538C (en) | 1999-01-21 | 1999-01-21 | Non-steam cured foamed concrete plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991146379A CN1155538C (en) | 1999-01-21 | 1999-01-21 | Non-steam cured foamed concrete plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1261600A CN1261600A (en) | 2000-08-02 |
| CN1155538C true CN1155538C (en) | 2004-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991146379A Expired - Fee Related CN1155538C (en) | 1999-01-21 | 1999-01-21 | Non-steam cured foamed concrete plate |
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| Country | Link |
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| CN (1) | CN1155538C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307029C (en) * | 2003-09-30 | 2007-03-28 | 达辉（广东）轻质混凝土制品有限公司 | Method for manufacturing light conccrete product |
| DE102006045091B4 (en) * | 2006-09-21 | 2013-04-25 | Universität Dortmund | Process for producing an aerated concrete and aerated concrete produced according to the method |
| CN101748852B (en) * | 2009-11-23 | 2011-11-16 | 赵顺年 | Exterior wall heat insulation board and preparation method thereof |
| CN101941850B (en) * | 2010-08-11 | 2013-01-16 | 昆明理工大学 | Method for firing ceramsite by coal slime |
| CN102617181B (en) * | 2012-03-29 | 2013-12-11 | 重庆市旌弘建材有限公司 | Shale sintering foam building block and preparation method thereof |
| CN102765963B (en) * | 2012-08-06 | 2014-04-09 | 辽宁科技大学 | Fire-proof heat-insulating foamed cement material for external wall and production method thereof |
| CN102964103A (en) * | 2012-12-04 | 2013-03-13 | 青岛理工大学 | Foamed cement containing desulfurized petroleum coke ash blending material |
| CN103979839B (en) * | 2014-03-31 | 2016-01-20 | 滁州学院 | A kind of heat-insulating light partition plate and preparation method thereof |
| CN105645893A (en) * | 2016-01-20 | 2016-06-08 | 卓达新材料科技集团有限公司 | Method for manufacturing light sound absorption cement base plate |
| CN106930473B (en) * | 2017-03-28 | 2019-03-26 | 佛山佳牧乐科技有限公司 | A kind of dismountable assembled house top plate |
| CN108373313A (en) * | 2018-03-30 | 2018-08-07 | 王景硕 | A kind of preparation method of air entrained concrete |
-
1999
- 1999-01-21 CN CNB991146379A patent/CN1155538C/en not_active Expired - Fee Related
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| CN1261600A (en) | 2000-08-02 |
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