CN103739241A - Special mortar for dry method construction of self-insulation aerated concrete and preparation method thereof - Google Patents
Special mortar for dry method construction of self-insulation aerated concrete and preparation method thereof Download PDFInfo
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- CN103739241A CN103739241A CN201310434023.9A CN201310434023A CN103739241A CN 103739241 A CN103739241 A CN 103739241A CN 201310434023 A CN201310434023 A CN 201310434023A CN 103739241 A CN103739241 A CN 103739241A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 239000004567 concrete Substances 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009413 insulation Methods 0.000 title abstract description 11
- 239000002893 slag Substances 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 47
- 239000002131 composite material Substances 0.000 claims abstract description 40
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000011574 phosphorus Substances 0.000 claims abstract description 37
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 37
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 32
- 239000010881 fly ash Substances 0.000 claims abstract description 31
- 239000004568 cement Substances 0.000 claims abstract description 27
- 239000003513 alkali Substances 0.000 claims abstract description 26
- 229920005610 lignin Polymers 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000010439 graphite Substances 0.000 claims abstract description 24
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 24
- 239000004576 sand Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 9
- -1 shale pottery Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 20
- 230000018044 dehydration Effects 0.000 claims description 10
- 238000006297 dehydration reaction Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 abstract 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 abstract 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 abstract 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 abstract 2
- 239000004035 construction material Substances 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002956 ash Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 206010016807 Fluid retention Diseases 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000005997 Calcium carbide Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 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
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 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
- 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
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to special mortar for dry method construction of self-insulation aerated concrete and a preparation method thereof, and belongs to a construction material technology field, wherein the mortar is characterized in that the mortar is composed of fly ash, phosphorus slag, cement clinker, phosphogypsum, carbide slag, graphite tailing sand, shale pottery sand, alkali lignin, polyethylene-vinyl acetate and hydroxypropyl methyl cellulose, and is prepared by the following steps of: (1) preparing an ecological composite gel material, which is prepared by mixing the following raw materials by weight: 35-45% of fly ash, 25-50% of phosphorus slag, 8-10% of cement clinker, 3-8% of phosphogypsum, and 2-6% of carbide slag; (2) preparing an additive by mixing and stirring the following raw materials by weight: 35-50% of alkali lignin, 15-30% of polyethylene- vinyl acetate, and 20-40% of hydroxypropyl methyl cellulose; and (3) preparing the plastering mortar by stirring according to a mass ratio of the ecological composite gel material, the graphite tailing sand, the shale pottery sand to the additive being 1:0.7:0.3:0.004.
Description
Technical field
The preparation method who the present invention relates to a kind of self-heat conserving gas concrete dry construction special masonry mortar, belongs to building material technical field.
Background technology
According to statistics, China's building energy consumption has accounted for approximately 27% of social total energy consumption, and along with people carry forward vigorously raising and the Urbanization Construction of the requirement of living environment comfort level, building energy consumption also will further improve.According to developed country's experience, building will surmount the industries such as industry, traffic and finally occupy social energy consumption first place, reach 30-40%.Therefore, building energy conservation is imperative.Country has put into effect the laws and regulations that a series of building energy conservations are relevant in succession: announced < < Energy Conservation Law of the People's Republic of China > > (President of the People's Republic of China makes the 70 No. seven) in October, 2007; In July, 2008, State Council promulgated < < Civil Building Energy Conservation regulations > > (No. 530th, Decree of the State Council of the People's Republic of China).
Implementing building energy conservation, Development of Green Building, effectively reduce buildings Energy in use, is the long-term policy of Building Trade in China development, and Ye Shi China Building technology develops important topic in the urgent need to address.By improving building maintenance structure thermal and insulating performance, it is one of important effective way reducing building energy consumption.Body of wall is the chief component of building maintenance structure, is also the important place of buildings thermal energy exchange, adopts self heat insulation wall and guarantees that effective incubation and thermal insulation function of built a wall body is the important measures that reduce buildings Energy in use.
In wall thermal insulating system, wall self-insulation system and same life-span of building, and its comprehensive cost is lower than other wall thermal insulating systems, is a kind of wall thermal insulating form having a extensive future.Wherein, self-heat conserving air-entrained concrete building block is because thermal conductivity is low, its heat insulating effect is good, be a kind of single materials for wall that can meet energy-saving design in construction requirement, the wall self-insulation system being comprised of self-heat conserving air-entrained concrete building block and supplementary material thereof is more and more subject to people's favor.
But, when a lot of local use self-heat conserving gas concrete, still adopt traditional wet construction to build by laying bricks or stones, watering before upper wall, and use ordinary mortar supporting with it.Compare with traditional walling, self-heat conserving gas concrete is lightweight, water-absorbent strong, low strength, and between the high ordinary mortar of intensity and Young's modulus, easily produce larger stress, and easily siphon away the moisture in ordinary mortar, cause the generation of the quality problems such as self-heat conserving aerated concrete wall hollowing, cracking.In addition, the self-heat conserving aerated concrete wall mortar joint that adopts ordinary mortar to build by laying bricks or stones is large, conventionally can reach 20mm, becomes the heat bridge of body of wall, thereby has reduced the integral heat insulation heat-proof quality of self heat insulation wall.
Therefore, the new exclusive mortar that Application and Development matches with self-heat conserving gas concrete dry construction, solves the common quality defects such as aerated concrete wall hollowing, cracking, improves wall insulation performance and masonry quality, significant.
Summary of the invention
The object of the present invention is to provide dedicated mortar of a kind of self-heat conserving air-entrained concrete wall material dry construction and preparation method thereof, dedicated mortar good water-retaining property prepared by the method, there is good non-deformability and thermal and insulating performance, mate well with self-heat conserving gas concrete dry construction.
To achieve these goals, technical scheme of the present invention is: a kind of self-heat conserving gas concrete special mortar for dry method construction and preparation method thereof, it is characterized in that it is comprised of flyash, phosphorus slag, cement clinker, phosphogypsum, carbide slag, graphite tailing sand, shale pottery, alkali lignin and Vltra tears, and preparation as follows:
It comprises the steps:
1) preparation of ecological composite gelled material: by phosphorus slag, phosphogypsum, carbide slag drying and dehydrating, 80 ℃～120 ℃ of dehydration temperaturres, constant temperature 1.5～2h; After dehydration, combined grinding tails over 5～8% to fineness 0.08mm;
By the shared mass percent of each raw material, be: flyash 35～45%, phosphorus slag 25～50%, cement clinker 8～10%, phosphogypsum 3～8%, carbide slag 2～6%, choose flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag; By flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag mix and blend, obtain ecological composite gelled material;
2) preparation of admixture: be by each constituent mass per-cent: alkali lignin 35～50%, polyethylene vinyl acetate fat 15～30%, Vltra tears 20～40%, choose alkali lignin, polyethylene vinyl acetate fat and Vltra tears; By alkali lignin, polyethylene vinyl acetate fat and Vltra tears mix and blend, obtain admixture;
3) preparation of dedicated mortar: by ecological composite gelled material: graphite tailing: shale pottery: the mass ratio of admixture is 1: 0.7: 0.3: 0.004, choose ecological composite gelled material, graphite tailing sand, shale pottery and admixture;
Send the composite gelled material of ecological composite gelled material total mass 10% and admixture to mixer stirring 2～3min, again the composite gelled material of residue 90% is dropped into mixer and stir 5～8min, finally add graphite tailing sand and shale pottery to stir 10～15min, obtain self-heat conserving gas concrete special mortar for dry method construction (product).
The raw-material performance of the present invention and cardinal principle:
Flyash is II level flyash.
Phosphorus slag is Electric Cooker phosphorus by product slag, and melting phosphorus slag obtains after shrend chilling, and granularity is 0.2～5mm, chief component: w (CaO) 47%～52%, w (SiO
2) 40%～43%, w (Al
2o
3) 2%～8%, w (Fe
2o
3) 0.4%～1.0%, w (P
2o
5) 0.6%～3.4%, w (F) 1%～3%.
Carbide slag is that the waste residue after acetylene is produced in calcium carbide hydrolysis, and main component is Ca (OH)
2, in this ecological gelling material as the alkali-activator of flyash and phosphorus slag.
Phosphogypsum is the waste residue producing during with sulfuric acid treating phosphorite in phosphoric acid production, and main component is CaSO
42H
2o on the one hand as the sulphate activation agent of flyash and phosphorus slag, increases the workability of mortar in this ecological gelling material simultaneously.
Graphite tailing sand, fineness modulus Mx is 2.0, silt content is less than 5%; Shale pottery, fineness modulus Mx is 2.0～2.5.
The main component of flyash and phosphorus slag is vitreum, has potential activity, generation intensity under the exciting of cement clinker, phosphogypsum and carbide slag.Cement clinker, adds after water constantly aquation and generates hydrated calcium silicate gel, ettringite etc., for goods provide early strength, generates Ca (OH)
2oH is constantly provided
-maintain flyash, phosphorus slag excites required basicity.
In admixture of the present invention, water reducer alkali lignin be from papermaking wastewater, extract be dark brown meal, it is polymeric anion surfactant, molecular weight 1000～100000, it add the effect that can simultaneously play diminishing and water conservation, the water retention of mortar is reached more than 85%, reduced coursing degree of mortar, improved mortar workability; Polyethylene vinyl acetate fat can increase the cohesive strength of mortar as organic binder bond; Water-holding agent Vltra tears can improve the water retention property of mortar, avoids the moisture in mortar to be siphoned away by gas concrete, affects the aquation of gelling material in mortar.
In graphite tailing sand, compound use light aggregate shale pottery sand, reduces product unit weight, has certain heat-insulating property, can improve the integral heat insulation heat-proof quality of gas concrete self heat insulation wall.
The invention has the beneficial effects as follows:
1) special mortar for dry method construction that prepared by the present invention has the performance more superior than traditional mortar, and water-retentivity is better than traditional mortar greatly, and when denseness is above up to 90mm, its delamination degree is obviously better than the requirement that JC890-2001 standard mortar delamination degree is less than 20mm.Itself and gas concrete are supported the use, can effectively stop mortar moisture to be absorbed by body of wall, can not only ensure the operability of construction, also help the aquation of gelling material in mortar, make mortar strength sustainable growth, can meet the requirement of self-heat conserving wall of aerated concrete block; Add shale pottery, make its dry density at 750～950Kg/m
3between, ultimate compression strength is between 3.6MPa～5.0MPa, and backfin, than below 2.8, has good non-deformability; Cohesive strength is greater than 0.50 Mpa, has stronger adhesive property; Young's modulus is at 1600N/mm
2～2000N/mm
2between, drying shrinkage value is less than 0.35mm/m, mates well with the material behavior of self-heat conserving gas concrete; Thereby can effectively overcome body of wall and occur the quality accidents such as hollowing, cracking even come off.Supporting with self-heat conserving gas concrete dry construction, can reduce mortar joint, reach the effect of good heat insulating.
2) the method technique is simple, cost is low.
Embodiment
In order to understand better the present invention, below in conjunction with example, further illustrate content of the present invention, but the present invention is not only confined to the following examples.
Embodiment 1:
A kind of self-heat conserving gas concrete special mortar for dry method construction and preparation method thereof, it is comprised of flyash, phosphorus slag, cement clinker, phosphogypsum, carbide slag, graphite tailing sand, shale pottery, alkali lignin, polyethylene vinyl acetate fat and Vltra tears, through following steps, prepares:
1) preparation of ecological composite gelled material: by phosphorus slag, phosphogypsum, carbide slag drying and dehydrating, 80 ℃ of dehydration temperaturres, constant temperature 2h, after dehydration, combined grinding tails over 6% to fineness 0.08mm;
Ecological composite gelled material is comprised of flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag, by the shared mass percent of each raw material, be: flyash 40%, phosphorus slag 40%, cement clinker 10%, phosphogypsum 5%, carbide slag 5%, choose flyash (II level ash), phosphorus slag, cement clinker, phosphogypsum and carbide slag; By flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag mix and blend, obtain ecological composite gelled material;
2) preparation of admixture: admixture is comprised of alkali lignin, polyethylene vinyl acetate fat and Vltra tears, by each constituent mass per-cent, be: alkali lignin 40%, polyethylene vinyl acetate fat 30%, Vltra tears 30%, choose alkali lignin, polyethylene vinyl acetate fat and Vltra tears; By alkali lignin, polyethylene vinyl acetate fat and Vltra tears mix and blend, obtain admixture (powdery);
3) preparation of dedicated mortar: by ecological composite gelled material: graphite tailing: shale pottery: the mass ratio of admixture is 1: 0.7: 0.3: 0.004, choose ecological composite gelled material, graphite tailing sand, shale pottery and admixture;
Be dry mixed stirring: send the composite gelled material of ecological composite gelled material total mass 10% and admixture to mixer stirring 2min, again the composite gelled material of residue 90% is dropped into mixer and stir 6min, finally add graphite tailing sand and shale pottery to stir 15min, obtain self-heat conserving gas concrete special mortar for dry method construction (product).
The dedicated mortar of above-mentioned preparation is carried out to performance test, and its result is as table 1:
Table 1
| Project | Dry density/Kg/m 3 | Ultimate compression strength/MPa | Folding strength/MPa | Cohesive strength/MPa | Young's modulus/N/mm 2 | Denseness/mm | Delamination degree/mm | Shrinkage/mm/m | Thermal conductivity |
| Result | 852 | 5.2 | 2.10 | 0.48 | 1735 | 91 | 5.5 | 0.36 | 0.164 |
Comparative experiments: dedicated mortar and the existing mortar of embodiment 1 preparation are under equal conditions respectively used on aerated concrete wall, the dedicated mortar body of wall mortar joint width 8mm of embodiment 1 preparation, the phenomenon such as hollowing do not appear in 120 days back walls, ftracture, come off; And common mortar body of wall mortar joint width 21mm, a small amount of hollowing, the cracking phenomena of back wall coat of plaster appearance in 120 days, and present the trend increasing of passing in time.
Embodiment 2:
A kind of self-heat conserving gas concrete special mortar for dry method construction and preparation method thereof, it is comprised of flyash, phosphorus slag, cement clinker, phosphogypsum, carbide slag, graphite tailing sand, shale pottery, alkali lignin, polyethylene vinyl acetate fat and Vltra tears, through following steps, prepares:
1) preparation of ecological composite gelled material: by phosphorus slag, phosphogypsum, carbide slag drying and dehydrating, 120 ℃ of dehydration temperaturres, constant temperature 1.5h, after dehydration, combined grinding tails over 8% to fineness 0.08mm;
Ecological composite gelled material is comprised of flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag, by the shared mass percent of each raw material, be: flyash 35%, phosphorus slag 50%, cement clinker 8%, phosphogypsum 4%, carbide slag 3%, choose flyash (II level ash), phosphorus slag, cement clinker, phosphogypsum and carbide slag; By flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag mix and blend, obtain ecological composite gelled material;
2) preparation of admixture: admixture is comprised of alkali lignin, polyethylene vinyl acetate fat and Vltra tears, by each constituent mass per-cent, be: alkali lignin 50%, polyethylene vinyl acetate fat 15%, Vltra tears 35%, choose alkali lignin, polyethylene vinyl acetate fat and Vltra tears; By alkali lignin, polyethylene vinyl acetate fat and Vltra tears mix and blend, obtain admixture (powdery);
3) preparation of dedicated mortar: by ecological composite gelled material: graphite tailing: shale pottery: the mass ratio of admixture is 1: 0.7: 0.3: 0.004, choose ecological composite gelled material, graphite tailing sand, shale pottery and admixture;
Be dry mixed stirring: send the composite gelled material of ecological composite gelled material total mass 10% and admixture to mixer stirring 3min, again the composite gelled material of residue 90% is dropped into mixer and stir 8min, finally add graphite tailing sand and shale pottery to stir 10min, obtain self-heat conserving gas concrete special mortar for dry method construction (product).
Comparative experiments: dedicated mortar and the existing mortar of embodiment 2 preparations are under equal conditions respectively used on aerated concrete wall, the dedicated mortar body of wall mortar joint width 7.5mm of embodiment 2 preparation, the phenomenon such as hollowing do not appear in 120 days back walls, ftracture, come off; And common mortar body of wall mortar joint width 19mm, a small amount of hollowing, the cracking phenomena of back wall coat of plaster appearance in 120 days, and present the trend increasing of passing in time.
Embodiment 3:
A kind of self-heat conserving gas concrete special mortar for dry method construction and preparation method thereof, it is comprised of flyash, phosphorus slag, cement clinker, phosphogypsum, carbide slag, graphite tailing sand, shale pottery, alkali lignin, polyethylene vinyl acetate fat and Vltra tears, through following steps, prepares:
1) preparation of ecological composite gelled material: by phosphorus slag, phosphogypsum, carbide slag drying and dehydrating, 100 ℃ of dehydration temperaturres, constant temperature 1.8h, after dehydration, combined grinding tails over 5% to fineness 0.08mm;
Ecological composite gelled material is comprised of flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag, by the shared mass percent of each raw material, be: flyash 45%, phosphorus slag 32%, cement clinker 9%, phosphogypsum 8%, carbide slag 6%, choose flyash (II level ash), phosphorus slag, cement clinker, phosphogypsum and carbide slag; By flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag mix and blend, obtain ecological composite gelled material;
2) preparation of admixture: admixture is comprised of alkali lignin, polyethylene vinyl acetate fat and Vltra tears, by each constituent mass per-cent, be: alkali lignin 35%, polyethylene vinyl acetate fat 25%, Vltra tears 40%, choose alkali lignin, polyethylene vinyl acetate fat and Vltra tears; By alkali lignin, polyethylene vinyl acetate fat and Vltra tears mix and blend, obtain admixture (powdery);
3) preparation of dedicated mortar: by ecological composite gelled material: graphite tailing: shale pottery: the mass ratio of admixture is 1: 0.7: 0.3: 0.004, choose ecological composite gelled material, graphite tailing sand, shale pottery and admixture;
Be dry mixed stirring: send the composite gelled material of ecological composite gelled material total mass 10% and admixture to mixer stirring 2.5min, again the composite gelled material of residue 90% is dropped into mixer and stir 5min, finally add graphite tailing sand and shale pottery to stir 13min, obtain self-heat conserving gas concrete special mortar for dry method construction (product).
Comparative experiments: dedicated mortar and the existing mortar of embodiment 3 preparations are under equal conditions respectively used on aerated concrete wall, the dedicated mortar body of wall mortar joint width 8.5mm of embodiment 3 preparation, the phenomenon such as hollowing do not appear in 120 days back walls, ftracture, come off; And common mortar body of wall mortar joint width 20mm, a small amount of hollowing, the cracking phenomena of back wall coat of plaster appearance in 120 days, and present the trend increasing of passing in time.
The bound of each raw material of the present invention, interval value, and the bound of processing parameter (as temperature, time etc.), interval value can realize the present invention, at this, do not enumerate embodiment.
Claims (1)
1. self-heat conserving gas concrete special mortar for dry method construction and preparation method thereof, it is characterized in that it is comprised of flyash, phosphorus slag, cement clinker, phosphogypsum, carbide slag, graphite tailing sand, shale pottery, alkali lignin, polyethylene vinyl acetate fat and Vltra tears, and preparation as follows:
1) preparation of ecological composite gelled material: by phosphorus slag, phosphogypsum, carbide slag drying and dehydrating, 80 ℃～120 ℃ of dehydration temperaturres, constant temperature 1.5～2h; After dehydration, combined grinding tails over 5～8% to fineness 0.08mm;
By the shared mass percent of each raw material, be: flyash 35～45%, phosphorus slag 25～50%, cement clinker 8～10%, phosphogypsum 3～8%, carbide slag 2～6%, choose flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag; By flyash, phosphorus slag, cement clinker, phosphogypsum and carbide slag mix and blend, obtain ecological composite gelled material;
2) preparation of admixture: be by each constituent mass per-cent: alkali lignin 35～50%, polyethylene vinyl acetate fat 15～30%, Vltra tears 20～40%, choose alkali lignin, polyethylene vinyl acetate fat and Vltra tears; By alkali lignin, polyethylene vinyl acetate fat and Vltra tears mix and blend, obtain admixture;
3) preparation of dedicated mortar: by ecological composite gelled material: graphite tailing: shale pottery: the mass ratio of admixture is 1: 0.7: 0.3: 0.004, choose ecological composite gelled material, graphite tailing sand, shale pottery and admixture;
Send the composite gelled material of ecological composite gelled material total mass 10% and admixture to mixer stirring 2～3min, again the composite gelled material of residue 90% is dropped into mixer and stir 5～8min, finally add graphite tailing sand and shale pottery to stir 10～15min, obtain self-heat conserving gas concrete special mortar for dry method construction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434023.9A CN103739241B (en) | 2013-09-22 | 2013-09-22 | A kind of self-heat conserving gas concrete special mortar for dry method construction and preparation method thereof |
Applications Claiming Priority (1)
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| CN104402328A (en) * | 2014-10-29 | 2015-03-11 | 尤明 | Thermal-insulation anti-cracking mortar and preparation method thereof |
| CN105016634A (en) * | 2015-07-07 | 2015-11-04 | 三峡大学 | Quick hardening early strength phosphorous slag-based cementitious material and prepartion method therefor |
| CN106365672A (en) * | 2016-08-29 | 2017-02-01 | 湖北远固新型建材科技股份有限公司 | Method for preparing high-performance autoclaved aerated concrete blocks through graphite tailings |
| CN106380095A (en) * | 2016-08-31 | 2017-02-08 | 中国葛洲坝集团水泥有限公司 | Preparation method of hydraulic concrete phosphorus slag composite cementitious material |
| CN107139325A (en) * | 2017-06-26 | 2017-09-08 | 洛阳理工学院 | A kind of method that wet grinding cement prepares ready-mixed concrete |
| CN110194648A (en) * | 2019-05-20 | 2019-09-03 | 贵州开磷磷石膏综合利用有限公司 | It is a kind of for producing the new type mortar and preparation method of steam-pressing aero-concrete |
| CN110627456A (en) * | 2019-11-05 | 2019-12-31 | 厦门高辰新材料有限公司 | Special plastering mortar for aerated concrete wall and preparation method thereof |
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| CN101538136A (en) * | 2009-04-29 | 2009-09-23 | 华南理工大学 | Premixing mortar with high moisture retention and production method thereof |
| CN101653966A (en) * | 2009-09-02 | 2010-02-24 | 武汉理工大学 | Method for preparing special plastering mortar for self-energy-saving air-entrained concrete wall material |
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| CN101538136A (en) * | 2009-04-29 | 2009-09-23 | 华南理工大学 | Premixing mortar with high moisture retention and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402328A (en) * | 2014-10-29 | 2015-03-11 | 尤明 | Thermal-insulation anti-cracking mortar and preparation method thereof |
| CN105016634A (en) * | 2015-07-07 | 2015-11-04 | 三峡大学 | Quick hardening early strength phosphorous slag-based cementitious material and prepartion method therefor |
| CN106365672A (en) * | 2016-08-29 | 2017-02-01 | 湖北远固新型建材科技股份有限公司 | Method for preparing high-performance autoclaved aerated concrete blocks through graphite tailings |
| CN106380095A (en) * | 2016-08-31 | 2017-02-08 | 中国葛洲坝集团水泥有限公司 | Preparation method of hydraulic concrete phosphorus slag composite cementitious material |
| CN107139325A (en) * | 2017-06-26 | 2017-09-08 | 洛阳理工学院 | A kind of method that wet grinding cement prepares ready-mixed concrete |
| CN110194648A (en) * | 2019-05-20 | 2019-09-03 | 贵州开磷磷石膏综合利用有限公司 | It is a kind of for producing the new type mortar and preparation method of steam-pressing aero-concrete |
| CN110627456A (en) * | 2019-11-05 | 2019-12-31 | 厦门高辰新材料有限公司 | Special plastering mortar for aerated concrete wall and preparation method thereof |
| CN110627456B (en) * | 2019-11-05 | 2022-01-18 | 厦门高辰新材料有限公司 | Special plastering mortar for aerated concrete wall and preparation method thereof |
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| CN103739241B (en) | 2016-03-23 |
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