CN101891440B - Special finish coat mortar with desulfurized gypsum as base material for wall insulation system - Google Patents
Special finish coat mortar with desulfurized gypsum as base material for wall insulation system Download PDFInfo
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- CN101891440B CN101891440B CN2010102368819A CN201010236881A CN101891440B CN 101891440 B CN101891440 B CN 101891440B CN 2010102368819 A CN2010102368819 A CN 2010102368819A CN 201010236881 A CN201010236881 A CN 201010236881A CN 101891440 B CN101891440 B CN 101891440B
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- Prior art keywords
- finish coat
- calcium
- quartz sand
- coat mortar
- metakaolin
- Prior art date
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 38
- 238000009413 insulation Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 title claims abstract description 23
- 239000010440 gypsum Substances 0.000 title abstract 4
- 229910052602 gypsum Inorganic materials 0.000 title abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000006004 Quartz sand Substances 0.000 claims abstract description 28
- 239000010881 fly ash Substances 0.000 claims abstract description 24
- 239000003245 coal Substances 0.000 claims abstract description 22
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 21
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000001110 calcium chloride Substances 0.000 claims abstract description 15
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 15
- 229920000578 graft copolymer Polymers 0.000 claims abstract description 14
- 239000011505 plaster Substances 0.000 claims description 29
- 238000001354 calcination Methods 0.000 claims description 22
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 16
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 16
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 16
- 239000011575 calcium Substances 0.000 claims description 16
- 229910052791 calcium Inorganic materials 0.000 claims description 16
- 239000004571 lime Substances 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 15
- 239000000440 bentonite Substances 0.000 claims description 13
- 229910000278 bentonite Inorganic materials 0.000 claims description 13
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 13
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229920003043 Cellulose fiber Polymers 0.000 abstract 1
- 229910000281 calcium bentonite Inorganic materials 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- 235000012255 calcium oxide Nutrition 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 239000002910 solid waste Substances 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
- 239000002585 base Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000034189 Sclerosis Diseases 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 229910001653 ettringite Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920006389 polyphenyl polymer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005303 weighing Methods 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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of constructional material, in particular to a special finish coat mortar with desulfurized gypsum as a base material for a wall insulation system. The finish coat mortar comprises the desulfurized gypsum, fly ash, metakaolin, calcined coal gangue, quicklime powder, calcium chloride, quartz sand with the grain size of 50-80 meshes, quartz sand with the grain size of 100-120 meshes, calcium bentonite, cellulose-acrylate graft copolymer and cellulose fiber. The invention can effectively improve the cracking resistance, waterproofing performance and shock resistance of the wall insulation system. The product of the invention is produced from a large amount of industrial solid wastes such as the desulfurized gypsum, the fly ash, the calcined coal gangue, the metakaolin and the like, and has the advantages of low cost, high green degree, reduction of carbon emission and the like. The invention is suitable for insulation system construction of various building walls.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of finish coat mortar take desulfurated plaster as base-material of wall insulation system special use.
Background technology
Wall thermal insulating is heat insulation to be the important step of construction industry energy-saving and emission-reduction.At present, China relevant department requires New Buildings to realize energy-conservation 50% target, and the key cities such as Shanghai, Beijing, Tianjin then must reach 65% energy-saving effect.Wall insulation system is divided into insulation and four kinds of patterns of outer wall self heat-preserving in external wall outer insulation, exterior wall internal insulation, the exterior wall.Wherein, external wall outer insulation does not affect interior decoration, does not take the house usable floor area, buildings is had provide protection, can eliminate the advantages such as cold-heat bridge and overall economic efficiency be obvious with it, becomes a kind of building energy conservation pattern that current China generally adopts.External thermal insulation system mainly comprises the thin plastoring system of expansion polyphenyl plate, the polyurethane series thermal insulation mortar system that unifies.The thermal insulation mortar system construction is convenient, and good integrity is subject to engineering circles and generally praises highly.The thermal insulation mortar of already having produced comprises the expansion polyphenyl granule heat-insulating mortar and two kinds of pearlstone (glass bead) thermal insulation mortars of remaining silent.No matter adopt which kind of thermal insulation mortar, still need in the system supporting boundary mortar and finish coat mortar, and composite strengthening net sheet.
Finish coat mortar in the thermal insulation mortar outer heat preservation system adopts usually take cement as base-material, is aided with mineral admixture, size fractionated quartz sand and the formulated product of various additive.Work of the present invention then aims at the resource utilization application problem of a large amount of desulfurated plasters that produce when front running because of the power plant desulfurization device, has developed successfully a kind of finish coat mortar take desulfurated plaster as base-material of wall insulation system special use.
Summary of the invention
The object of the present invention is to provide a kind of finish coat mortar take desulfurated plaster as base-material of wall insulation system special use, this finish coat mortar is take desulfurated plaster as base-material, be aided with other industrial solid castoff and calcium lime powder and form composite gelled material, with calcium chloride as chemical activator, with quartz sand for gathering materials, take calcium-base bentonite and Mierocrystalline cellulose-acrylate graft copolymers as water-holding agent, the special-purpose finish coat mortar of the heat-insulation system take cellulosic fibre as the stress dispersion anti-fissuring agent.Finish coat mortar of the present invention can use after directly adding at the construction field (site) the water stirring, and ultimate compression strength is moderate after the product sclerosis, and is high with the thermal insulation mortar cohesive strength, good toughness, and water-tolerant, shrinking percentage is little.
The finish coat mortar take desulfurated plaster as base-material of a kind of wall insulation system special use that the present invention proposes, this finish coat mortar is comprised of desulfurated plaster, flyash, metakaolin, calcining coal gangue, calcium lime powder, calcium chloride, 50-80 order quartz sand, 100-120 order quartz sand, calcium-base bentonite, Mierocrystalline cellulose-acrylate graft copolymers and cellulosic fibre.The weight ratio of its component is as follows:
Desulfurated plaster 100
Flyash 20-100
Metakaolin 30-150
Calcining coal gangue 20-120
Calcium lime powder 5-18
Calcium chloride 2-10
50-80 order quartz sand 400-1200
100-120 order quartz sand 200-800
Calcium-base bentonite 2-16
Mierocrystalline cellulose-acrylate graft copolymers 0.3-1.0
Cellulosic fibre 0.4-2.0.
The better weight ratio of each component is:
Desulfurated plaster 100
Flyash 40-95
Metakaolin 45-130
Calcining coal gangue 45-110
Calcium lime powder 5-12
Calcium chloride 4-9
50-80 order quartz sand 550-1100
100-120 order quartz sand 300-700
Calcium-base bentonite 4-13
Mierocrystalline cellulose-acrylate graft copolymers 0.4-0.9
Cellulosic fibre 0.6-1.8.
Among the present invention, its SO of described desulfurated plaster
3Weight content more than or equal to 42% less than 60%.
Among the present invention, described flyash is a kind of in I level F class flyash or the II level F class flyash.
Among the present invention, described metakaolin be natural kaolin 600-1000 ℃ of calcining more than 1.5 hours and levigate to specific surface area greater than 350m
2The powder of/Kg.
Among the present invention, described calcining coal gangue be the raw coal spoil 600-950 ℃ of calcining more than 2.0 hours and levigate to specific surface area greater than 380m
2The powder of/Kg.
Among the present invention, the length of described cellulosic fibre less than 9mm greater than 0mm.
The preparation method of the finish coat mortar that the present invention proposes, its concrete steps are as follows:
(1) take by weighing by weight raw material, and with 50-80 order quartz sand, 100-120 order quartz sand, in advance dry mixing of cellulosic fibre is to uniform state;
(2) desulfurated plaster, flyash, metakaolin, calcining coal gangue, calcium lime powder, calcium chloride, calcium-base bentonite and Mierocrystalline cellulose-acrylate graft copolymers are added in the mixture in the step (1);
(3) be mixed to uniform state;
More than each step all under normal temperature and normal pressure, carry out.
The finish coat mortar using method of gained of the present invention is: adds and can take after the water uniform mixing streak method to carry out the finish coat construction, and can compound alkali resistant glass fibre open weave cloth and Galvanized Steel Wire Netting, form the integral body with certain impact toughness after the dry sclerosis.
Among the present invention, desulfurated plaster, flyash, metakaolin, calcining coal gangue, calcium lime powder form the cementitious material system of polycomponent non-cement grog jointly.Flyash, metakaolin and calcining coal gangue all contain aluminium sesquioxide and the ferric oxide that has in a large number lateral reactivity, under the alkali environment that the calcium hydroxide that they generate at calcium lime powder chance water hydratable provides, be combined with the sulfate ion of desulfurated plaster stripping, form the extremely low ettringite (3CaO.Al of solubleness
2O
3(Fe
2O
3) .3CaSO
4.32H
2O), the active silica in them is then met the calcium hydroxide that water hydratable generates with calcium lime powder, forms the CSH gel, is filled in the ettringite overlap joint, piles up in the formed spatial network, improves intensity.The existence of calcium chloride can be played and excite flyash, the effect of metakaolin and calcining coal gangue activity.50-80 order quartz sand and 100-120 order quartz sand are as gathering materials, and after mutually arranging in pairs or groups by preferred proportion, the accumulation degree is maximum, can play the effect that hardened paste shrinks and reduce paste content that suppresses.Calcium-base bentonite is a kind of water-swelling and water-retentivity material, and with desulfurated plaster in the product of the present invention, flyash, metakaolin, calcining coal gangue, calcium lime powder and calcium chloride have preferably consistency.Mierocrystalline cellulose-acrylate graft copolymers is a kind of novel water-retaining agent, has preferably water retention capacity, and maintenance action in playing preferably to product of the present invention, improves its interface binding intensity.The adding of cellulosic fibre then makes a large amount of staple fibres that distributing in the product of the present invention, helps dispersive stress, resists the cracking in the dry shrinkage, and can improve the toughness of product of the present invention.
A kind of finish coat mortar take desulfurated plaster as base-material of wall insulation system special use of the present invention, utilized in a large number the industrial solid castoff desulfurated plaster, flyash, metakaolin and calcining coal gangue, production technique is simple, the starting material wide material sources, and performance is better than the like product take cement as base-material, the products production cost can reduce 12%-18%, has preferably market outlook.
Embodiment
The following examples are to further specify of the present invention, rather than limit the scope of the invention.
Embodiment 1
A kind of finish coat mortar take desulfurated plaster as base-material of wall insulation system special use is counted desulfurated plaster 100 by weight, I level F class flyash 100, metakaolin 30, calcining coal gangue 20, calcium lime powder 5, calcium chloride 2,50-80 order quartz sand 400,100-120 order quartz sand 200, calcium-base bentonite 2, Mierocrystalline cellulose-acrylate graft copolymers 0.3, the weight ratio of cellulosic fibre 0.4 is formulated.After water that adding accounts for this product weight 20% stirs, its operable time is 4.0 hours, tensile bond strength (normal temperature 28 days) is 1.1MPa, immersion tensile bond strength (normal temperature 28 days, soaked 7 days) be 0.8MPa, ultimate compression strength is 21.2MPa, and the backfin ratio is 2.6, and shrinking percentage is less than 0.2%.
Embodiment 2
A kind of finish coat mortar take desulfurated plaster as base-material of wall insulation system special use is counted desulfurated plaster 100 by weight, II level F class flyash 20, metakaolin 150, calcining coal gangue 120, calcium lime powder 12, calcium chloride 10,50-80 order quartz sand 800,100-120 order quartz sand 650, calcium-base bentonite 10, Mierocrystalline cellulose-acrylate graft copolymers 0.7, the weight ratio of cellulosic fibre 1.4 is formulated.After water that adding accounts for this product weight 33% stirs, its operable time is 4.2 hours, tensile bond strength (normal temperature 28 days) is 1.0MPa, immersion tensile bond strength (normal temperature 28 days, soaked 7 days) be 0.9MPa, ultimate compression strength is 18.0MPa, and the backfin ratio is 2.8, and shrinking percentage is less than 0.2%.
Embodiment 3
A kind of finish coat mortar take desulfurated plaster as base-material of wall insulation system special use is counted desulfurated plaster 100 by weight, II level F class flyash 90, metakaolin 130, calcining coal gangue 100, calcium lime powder 18, calcium chloride 8,50-80 order quartz sand 1200,100-120 order quartz sand 800, calcium-base bentonite 14, Mierocrystalline cellulose-acrylate graft copolymers 0.9, the weight ratio of cellulosic fibre 1.3 is formulated.After water that adding accounts for this product weight 37% stirs, its operable time is 3.2 hours, tensile bond strength (normal temperature 28 days) is 1.2MPa, immersion tensile bond strength (normal temperature 28 days, soaked 7 days) be 0.8MPa, ultimate compression strength is 21.0MPa, and the backfin ratio is 2.9, and shrinking percentage is less than 0.2%.
Embodiment 4
A kind of finish coat mortar take desulfurated plaster as base-material of wall insulation system special use is counted desulfurated plaster 100 by weight, I level F class flyash 100, metakaolin 150, calcining coal gangue 120, calcium lime powder 18, calcium chloride 10,50-80 order quartz sand 1200,100-120 order quartz sand 800, calcium-base bentonite 16, Mierocrystalline cellulose-acrylate graft copolymers 1.0, the weight ratio of cellulosic fibre 2.0 is formulated.After water that adding accounts for this product weight 42% stirs, its operable time is 3.9 hours, tensile bond strength (normal temperature 28 days) is 1.3MPa, immersion tensile bond strength (normal temperature 28 days, soaked 7 days) be 1.0MPa, ultimate compression strength is 17.5MPa, and the backfin ratio is 2.7, and shrinking percentage is less than 0.2%.
Claims (7)
1. the finish coat mortar take desulfurated plaster as base-material of a wall insulation system special use, it is characterized in that described finish coat mortar is comprised of desulfurated plaster, flyash, metakaolin, calcining coal gangue, calcium lime powder, calcium chloride, 50-80 order quartz sand, 100-120 order quartz sand, calcium-base bentonite, Mierocrystalline cellulose-acrylate graft copolymers and cellulosic fibre, the weight ratio of each component is as follows:
Desulfurated plaster 100
Flyash 20-100
Metakaolin 30-150
Calcining coal gangue 20-120
Calcium lime powder 5-18
Calcium chloride 2-10
50-80 order quartz sand 400-1200
100-120 order quartz sand 200-800
Calcium-base bentonite 2-16
Mierocrystalline cellulose-acrylate graft copolymers 0.3-1.0
Cellulosic fibre 0.4-2.0.
2. finish coat mortar according to claim 1 is characterized in that the weight ratio of described each component is:
Desulfurated plaster 100
Flyash 40-95
Metakaolin 45-130
Calcining coal gangue 45-110
Calcium lime powder 5-12
Calcium chloride 4-9
50-80 order quartz sand 550-1100
100-120 order quartz sand 300-700
Calcium-base bentonite 4-13
Mierocrystalline cellulose-acrylate graft copolymers 0.4-0.9
Cellulosic fibre 0.6-1.8.
3. finish coat mortar according to claim 1 and 2 is characterized in that its SO of described desulfurated plaster
3Weight content more than or equal to 42% less than 60%.
4. finish coat mortar according to claim 1 and 2 is characterized in that described flyash is a kind of in I level F class flyash or the II level F class flyash.
5. finish coat mortar according to claim 1 and 2, it is characterized in that described metakaolin be natural kaolin 600-1000 ℃ of calcining more than 1.5 hours and levigate to specific surface area greater than 350m
2The powder of/Kg.
6. finish coat mortar according to claim 1 and 2, it is characterized in that described calcining coal gangue be the raw coal spoil 600-950 ℃ of calcining more than 2.0 hours and levigate to specific surface area greater than 380m
2The powder of/Kg.
7. finish coat mortar according to claim 1 and 2, the length that it is characterized in that described cellulosic fibre less than 9mm greater than 0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102368819A CN101891440B (en) | 2010-07-23 | 2010-07-23 | Special finish coat mortar with desulfurized gypsum as base material for wall insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102368819A CN101891440B (en) | 2010-07-23 | 2010-07-23 | Special finish coat mortar with desulfurized gypsum as base material for wall insulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101891440A CN101891440A (en) | 2010-11-24 |
| CN101891440B true CN101891440B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102368819A Expired - Fee Related CN101891440B (en) | 2010-07-23 | 2010-07-23 | Special finish coat mortar with desulfurized gypsum as base material for wall insulation system |
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|---|---|
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108027A (en) * | 2011-03-23 | 2011-06-29 | 江苏省一夫新材料科技有限公司 | Cement mortar for constructional engineering |
| CN102126845A (en) * | 2011-03-23 | 2011-07-20 | 江苏省一夫新材料科技有限公司 | Cement plastering mortar |
| CN103787639A (en) * | 2012-11-01 | 2014-05-14 | 广西启利新材料科技股份有限公司 | Thermal-insulating block for building wall and preparation method thereof |
| CN104072194B (en) * | 2014-06-30 | 2016-02-17 | 孙红芳 | Thermal insulation layer brushing gypsum |
| CN105174888B (en) * | 2015-09-02 | 2017-05-31 | 管小军 | A kind of preparation method of the ventilative desulfurized gypsum base dry-mixed mortar of water conservation |
| CN108409253A (en) * | 2018-05-17 | 2018-08-17 | 肥西县碧涛建材有限公司 | A kind of mortar and preparation method thereof shortening setting time |
| CN108911670B (en) * | 2018-08-02 | 2021-02-05 | 张家港江苏科技大学产业技术研究院 | Self-compacting concrete using industrial waste titanium gypsum and preparation method thereof |
| CN111732377B (en) * | 2020-07-06 | 2022-06-10 | 济南大学 | Inorganic ceramic artificial board and preparation method thereof |
| CN112374852A (en) * | 2021-01-15 | 2021-02-19 | 广东博智林机器人有限公司 | Dry powder facing material and preparation method and use method thereof |
| CN116102287B (en) * | 2023-04-11 | 2023-07-21 | 中交一公局第六工程有限公司 | Binding material for building and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462840A (en) * | 2007-12-21 | 2009-06-24 | 同济大学 | Masonry cement |
-
2010
- 2010-07-23 CN CN2010102368819A patent/CN101891440B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101462840A (en) * | 2007-12-21 | 2009-06-24 | 同济大学 | Masonry cement |
Non-Patent Citations (1)
| Title |
|---|
| 施惠生等.脱硫石膏-粉煤灰复合胶凝体系强度的改性研究.《水泥技术》.2007,(第6期),29-34. * |
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| CN101891440A (en) | 2010-11-24 |
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