CN107141013A - A kind of Modified Quartz Sand thermal insulation mortar and its production method - Google Patents
A kind of Modified Quartz Sand thermal insulation mortar and its production method Download PDFInfo
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- CN107141013A CN107141013A CN201710410595.1A CN201710410595A CN107141013A CN 107141013 A CN107141013 A CN 107141013A CN 201710410595 A CN201710410595 A CN 201710410595A CN 107141013 A CN107141013 A CN 107141013A
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- parts
- quartz sand
- thermal insulation
- powder
- insulation mortar
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Classifications
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- 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
-
- 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
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- 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
- C04B2111/52—Sound-insulating materials
Abstract
The invention discloses a kind of Modified Quartz Sand thermal insulation mortar and its production method, it is related to thermal insulation mortar field, this kind of thermal insulation mortar includes following raw material by weight：120 160 parts of river bed sludge, 30 50 parts of Modified Quartz Sand, 20 30 parts of foam glass powder, 15 25 parts of desulfurated plaster, 10 20 parts of silicon carbide fibre, 8 12 parts of lignocellulosic, 5 15 parts of floating bead, 10 20 parts of clinoptilolite powder, 6 12 parts of silicon calcium powder, 6 10 parts of guar gum, 48 parts of EVA resin, 15 parts of foaming agent, 15 parts of foam stabilizer, 15 parts of water reducer, 15 parts of hydrophober, 13 parts of water-loss reducer.Its production method first by Modified Quartz Sand, foam glass powder, desulfurated plaster, floating bead, clinoptilolite powder, silicon calcium powder attrition grinding, is stirred and evenly mixed with surplus stock afterwards, you can.The thermal insulation mortar mechanical strength of the present invention is high, heat preservation and soundproof performance is good, and raw material sources are extensively, with low cost, and production technology is easy, is effectively improved the economic benefit of manufacturing enterprise.
Description
Technical field
The invention belongs to thermal insulation mortar field, and in particular to a kind of Modified Quartz Sand thermal insulation mortar and its production method.
Background technology
With the continuous improvement developed rapidly with people's living standard of society, how efficiently energy resource consumption is increasingly serious,
Energy-conservation and reduction energy consumption become the current key for solving energy problem.In China, it is total that building energy consumption has accounted for the whole society
The 46.7% of energy consumption, directly affects the sustainable development of Chinese society economy, and the thermal and insulating performance for improving building is reduction
The key of building energy consumption, thus research and development construction wall insulation material have great importance.
Building heat-insulating mortar reduces building energy consumption by improving the thermal and insulating performance of building, realizes building energy conservation
Most basic approach.Thermal insulation mortar is, using various light materials as aggregate, using cement as gelating material, to admix some property-modifying additives,
A kind of premixing dry powder and mortar for mixing and being made is stirred through manufacturing enterprise, the one kind for being mainly used in constructing building insulating layer is built
Material is built, with excellent properties such as heat-insulating and fire-proof, water resistance and weatherabilities, there is the extensive market demand.But in actual work
In Cheng Yingyong, also there is the deficiencies such as mechanical strength is low, sound-proofing is poor, production cost is high, and then serious shadow in existing thermal insulation mortar
Building safety and feature are rung, therefore, it is necessary to improve above mentioned problem, the development of energy saving and environment friendly construction material, profit is promoted
In social progress and the raising of people's quality of life.
EVA writes a Chinese character in simplified form for ethylene-vinyl acetate copolymer, and this kind of raw material has good water resistance, corrosion resistance, insulation
Among the multiple performances such as sound-proofing, conventional and plastic products, and being applied in thermal insulation mortar building materials greatly to improve into
Every physicochemical property of product.
The content of the invention
For problems of the prior art, the invention provides a kind of Modified Quartz Sand thermal insulation mortar and its producer
Method, this kind of thermal insulation mortar mechanical strength is high, heat preservation and soundproof performance is good, and raw material sources are extensively, with low cost, and production technology is easy,
It is effectively improved the economic benefit of manufacturing enterprise.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of Modified Quartz Sand thermal insulation mortar, including following raw material by weight：Sludge 120-160 parts of river bed, change
30-50 parts of quartz sand of property, 20-30 parts of foam glass powder, 15-25 parts of desulfurated plaster, 10-20 parts of silicon carbide fibre, wood fibre
Plain 8-12 parts, 5-15 parts of floating bead, 10-20 parts of clinoptilolite powder, 6-12 parts of silicon calcium powder, 6-10 parts of guar gum, 4-8 parts of EVA resin,
1-5 parts of foaming agent, 1-5 parts of foam stabilizer, 1-5 parts of water reducer, 1-5 parts of hydrophober, 1-3 parts of water-loss reducer；
The preparation technology of the modified silica flour comprises the following steps：
1) silica flour 90-110 DEG C of preheating and drying 1-2 hours in drying box are weighed, addition accounts for silica flour mass percent
8-12% 25% ammonia spirit, stirs 2-3 hours at 65-75 DEG C, filters out silica flour, dries；
2) its quality 3-5% coupling agent is added into dried silica flour again, is stirred 3-4 hours at 55-65 DEG C,
Filter out silica flour；
3) silica flour that finally will filter out is delivered in vacuum drying chamber, is 0.05-0.1Mpa, 90-100 in vacuum
Silica flour must be modified under conditions of DEG C after dry heat 2-3 hours.
Further, the thermal insulation mortar includes following raw material by weight：140 parts of river bed sludge, modified quartz
40 parts of sand, 25 parts of foam glass powder, 20 parts of desulfurated plaster, 15 parts of silicon carbide fibre, 10 parts of lignocellulosic, 10 parts of floating bead, tiltedly
15 parts of ptilolite powder, 9 parts of silicon calcium powder, 8 parts of guar gum, 6 parts of EVA resin, 3 parts of foaming agent, 3 parts of foam stabilizer, 3 parts of water reducer, hate
3 parts of aqua, 2 parts of water-loss reducer.
Preferably, the foaming agent is at least one in lauryl sodium sulfate, neopelex or benzene sulfonic acid sodium salt
Kind.
Preferably, the foam stabilizer is using at least one of silicones polyethers emulsion, polyacrylamide or polyvinyl alcohol.
Preferably, the water reducer is using at least one of calcium lignosulfonate, Sodium Polyacrylate or sulfamic acid sodium.
Preferably, the hydrophober uses organic silicon emulsion.
Preferably, the water-loss reducer uses one in carboxylic propyl methocel ether, starch ether or hydroxyethyl ether cellulose
Kind.
A kind of production method of above-mentioned Modified Quartz Sand thermal insulation mortar, is followed the steps below：
(1) raw material by weight ratio needed for preparation；
(2) first the Modified Quartz Sand, foam glass powder, desulfurated plaster, floating bead, clinoptilolite powder, silicon calcium powder are conveyed
Carry out crushing into turbine sand mill crossing 70-90 mesh sieves after uniform milled processed, obtain powder；
(3) silicon carbide fibre, lignocellulosic, guar gum, EVA resin and powder be delivered to jointly again agravic
Mixed in mixer, during which sequentially add the foaming agent, foam stabilizer, water reducer, hydrophober, water-loss reducer, obtain slurry；
(4) finally the slurry is stirred and evenly mixed by mixer, you can, and speed of agitator is set as 100-200r/
Min, mixing time is set as 1-2h.
The present invention has following beneficial effect：
(1) Modified Quartz Sand thermal insulation mortar simple production process of the invention, price is replaced using low in price river bed sludge
High cement, reduces production cost, improves the economic benefit of manufacturing enterprise；
(2) present invention is entered using the reinforcing dispensing as product such as Modified Quartz Sand, foam glass powder, silicon carbide fibre
One step improves the mechanical strength of finished product, including compression strength, tensile strength and shear bond strength；
(3) thermal insulation mortar of the invention adds finished product using dispensings such as lignocellulosic, silicon carbide fibre, EVA resins
Microcellular structure inside mortar, further increases the heat preservation and soundproof of thermal insulation mortar, strengthens its antidetonation decay resistance.
Embodiment
The embodiment of the present invention is further described with reference to embodiment, following examples are only used for more
Technical scheme is clearly demonstrated, and can not be limited the scope of the invention with this.
Embodiment 1
A kind of Modified Quartz Sand thermal insulation mortar, the following raw material of preparation：River bed sludge 120kg, Modified Quartz Sand 30kg, foam
Glass dust 20kg, desulfurated plaster 15kg, silicon carbide fibre 10kg, lignocellulosic 8kg, floating bead 5kg, clinoptilolite powder 10kg,
Silicon calcium powder 6kg, guar gum 6kg, EVA resin 4kg, foaming agent 1kg, foam stabilizer 1kg, water reducer 1kg, hydrophober 1kg, water-loss reducer
1kg；
The preparation technology of the modified silica flour comprises the following steps：
1) silica flour 90 DEG C of preheating and dryings 1 hour in drying box is weighed, addition accounts for silica flour mass percent 8%
25% ammonia spirit, stirs 2 hours at 65 DEG C, filters out silica flour, dries；
2) coupling agent of its quality 3% is added into dried silica flour again, stirs 3 hours, filters out at 55 DEG C
Silica flour；
3) silica flour that finally will filter out is delivered in vacuum drying chamber, is 0.05Mpa, 90 DEG C of condition in vacuum
Lower dry heat must be modified silica flour after 2 hours.
Wherein, above-mentioned foaming agent uses lauryl sodium sulfate；Foam stabilizer uses silicones polyethers emulsion；Water reducer is used
Calcium lignosulfonate；Hydrophober uses organic silicon emulsion；Water-loss reducer uses carboxylic propyl methocel ether.
A kind of production method of above-mentioned Modified Quartz Sand thermal insulation mortar, is followed the steps below：
(1) raw material by weight needed for preparation；
(2) first the Modified Quartz Sand, foam glass powder, desulfurated plaster, floating bead, clinoptilolite powder, silicon calcium powder are conveyed
Carry out crushing into turbine sand mill crossing 70 mesh sieves after uniform milled processed, obtain powder；
(3) silicon carbide fibre, lignocellulosic, guar gum, EVA resin and powder be delivered to jointly again agravic
Mixed in mixer, during which sequentially add the foaming agent, foam stabilizer, water reducer, hydrophober, water-loss reducer, obtain slurry；
(4) finally the slurry is stirred and evenly mixed by mixer, that is, the thermal insulation mortar finished product of the present invention, and stirring is made
Speed setting is 100r/min, and mixing time is set as 1h.
Embodiment 2
A kind of Modified Quartz Sand thermal insulation mortar, the following raw material of preparation：River bed sludge 140kg, Modified Quartz Sand 40kg, foam
Glass dust 25kg, desulfurated plaster 20kg, silicon carbide fibre 15kg, lignocellulosic 10kg, floating bead 10kg, clinoptilolite powder
15kg, silicon calcium powder 9kg, guar gum 8kg, EVA resin 6kg, foaming agent 3kg, foam stabilizer 3kg, water reducer 3kg, hydrophober 3kg,
Water-loss reducer 2kg；
The preparation technology of the modified silica flour comprises the following steps：
1) silica flour 100 DEG C of preheating and dryings 1.5 hours in drying box are weighed, addition accounts for silica flour mass percent 10%
25% ammonia spirit, at 70 DEG C stir 2.5 hours, filter out silica flour, dry；
2) coupling agent of its quality 4% is added into dried silica flour again, is stirred 3.5 hours at 60 DEG C, filtering
Go out silica flour；
3) silica flour that finally will filter out is delivered in vacuum drying chamber, is 0.08Mpa, 95 DEG C of condition in vacuum
Lower dry heat must be modified silica flour after 2.5 hours.
Wherein, above-mentioned foaming agent uses neopelex and benzene sulfonic acid sodium salt two kinds of mixtures, and between the two
Mass ratio is 1:1；Foam stabilizer uses two kinds of mixtures of polyacrylamide and polyvinyl alcohol, and mass ratio between the two is 1:2；
Water reducer uses two kinds of mixtures of Sodium Polyacrylate and sulfamic acid sodium, and mass ratio between the two is 1:1；Hydrophober is used
Organic silicon emulsion；Water-loss reducer uses starch ether.
A kind of production method of above-mentioned Modified Quartz Sand thermal insulation mortar, is followed the steps below：
(1) raw material by weight needed for preparation；
(2) first the Modified Quartz Sand, foam glass powder, desulfurated plaster, floating bead, clinoptilolite powder, silicon calcium powder are conveyed
Carry out crushing into turbine sand mill crossing 80 mesh sieves after uniform milled processed, obtain powder；
(3) silicon carbide fibre, lignocellulosic, guar gum, EVA resin and powder be delivered to jointly again agravic
Mixed in mixer, during which sequentially add the foaming agent, foam stabilizer, water reducer, hydrophober, water-loss reducer, obtain slurry；
(4) finally the slurry is stirred and evenly mixed by mixer, that is, the thermal insulation mortar finished product of the present invention, and stirring is made
Speed setting is 150r/min, and mixing time is set as 1.5h.
Embodiment 3
A kind of Modified Quartz Sand thermal insulation mortar, the following raw material of preparation：River bed sludge 160kg, Modified Quartz Sand 50kg, foam
Glass dust 30kg, desulfurated plaster 25kg, silicon carbide fibre 20kg, lignocellulosic 12kg, floating bead 15kg, clinoptilolite powder
20kg, silicon calcium powder 12kg, guar gum 10kg, EVA resin 8kg, foaming agent 5kg, foam stabilizer 5kg, water reducer 5kg, hydrophober
5kg, water-loss reducer 3kg；
The preparation technology of the modified silica flour comprises the following steps：
1) silica flour 110 DEG C of preheating and dryings 2 hours in drying box are weighed, addition accounts for silica flour mass percent 12%
25% ammonia spirit, stirs 3 hours at 75 DEG C, filters out silica flour, dries；
2) coupling agent of its quality 5% is added into dried silica flour again, stirs 4 hours, filters out at 65 DEG C
Silica flour；
3) silica flour that finally will filter out is delivered in vacuum drying chamber, is 0.1Mpa, 100 DEG C of condition in vacuum
Lower dry heat must be modified silica flour after 3 hours.
Wherein, above-mentioned foaming agent uses neopelex；Foam stabilizer uses polyacrylamide；Water reducer uses ammonia
Base sodium sulfonate；Hydrophober uses organic silicon emulsion；Water-loss reducer uses hydroxyethyl ether cellulose.
A kind of production method of above-mentioned Modified Quartz Sand thermal insulation mortar, is followed the steps below：
(1) raw material by weight needed for preparation；
(2) first the Modified Quartz Sand, foam glass powder, desulfurated plaster, floating bead, clinoptilolite powder, silicon calcium powder are conveyed
Carry out crushing into turbine sand mill crossing 90 mesh sieves after uniform milled processed, obtain powder；
(3) silicon carbide fibre, lignocellulosic, guar gum, EVA resin and powder be delivered to jointly again agravic
Mixed in mixer, during which sequentially add the foaming agent, foam stabilizer, water reducer, hydrophober, water-loss reducer, obtain slurry；
(4) finally the slurry is stirred and evenly mixed by mixer, that is, the thermal insulation mortar finished product of the present invention, and stirring is made
Speed setting is 200r/min, and mixing time is set as 2h.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of Modified Quartz Sand thermal insulation mortar, it is characterised in that including following raw material by weight：River bed sludge 120-
160 parts, 30-50 parts of Modified Quartz Sand, 20-30 parts of foam glass powder, 15-25 parts of desulfurated plaster, 10-20 parts of silicon carbide fibre,
8-12 parts of lignocellulosic, 5-15 parts of floating bead, 10-20 parts of clinoptilolite powder, 6-12 parts of silicon calcium powder, 6-10 parts of guar gum, EVA trees
4-8 parts of fat, 1-5 parts of foaming agent, 1-5 parts of foam stabilizer, 1-5 parts of water reducer, 1-5 parts of hydrophober, 1-3 parts of water-loss reducer；
The preparation technology of the modified silica flour comprises the following steps：
1) silica flour 90-110 DEG C of preheating and drying 1-2 hours in drying box are weighed, addition accounts for silica flour mass percent 8-
12% 25% ammonia spirit, stirs 2-3 hours at 65-75 DEG C, filters out silica flour, dries；
2) its quality 3-5% coupling agent is added into dried silica flour again, is stirred 3-4 hours at 55-65 DEG C, filtering
Go out silica flour；
3) silica flour that finally will filter out is delivered in vacuum drying chamber, is 0.05-0.1Mpa in vacuum, 90-100 DEG C
Under the conditions of dry heat must be modified silica flour after 2-3 hours.
2. a kind of Modified Quartz Sand thermal insulation mortar according to claim 1, it is characterised in that including it is following by weight
Raw material：140 parts of river bed sludge, 40 parts of Modified Quartz Sand, 25 parts of foam glass powder, 20 parts of desulfurated plaster, silicon carbide fibre 15
Part, 10 parts of lignocellulosic, 10 parts of floating bead, 15 parts of clinoptilolite powder, 9 parts of silicon calcium powder, 8 parts of guar gum, 6 parts of EVA resin, foaming
3 parts of agent, 3 parts of foam stabilizer, 3 parts of water reducer, 3 parts of hydrophober, 2 parts of water-loss reducer.
3. a kind of Modified Quartz Sand thermal insulation mortar according to claim 1, it is characterised in that the foaming agent is dodecane
At least one of base sodium sulphate, neopelex or benzene sulfonic acid sodium salt.
4. a kind of Modified Quartz Sand thermal insulation mortar according to claim 1, it is characterised in that the foam stabilizer is silicones
At least one of polyethers emulsion, polyacrylamide or polyvinyl alcohol.
5. a kind of Modified Quartz Sand thermal insulation mortar according to claim 1, it is characterised in that the water reducer is lignin
At least one of sulfoacid calcium, Sodium Polyacrylate or sulfamic acid sodium.
6. a kind of Modified Quartz Sand thermal insulation mortar according to claim 1, it is characterised in that the hydrophober is organosilicon
Emulsion.
7. a kind of Modified Quartz Sand thermal insulation mortar according to claim 1, it is characterised in that the water-loss reducer is carboxylic propyl group
One kind in methyl cellulose ether, starch ether or hydroxyethyl ether cellulose.
8. a kind of production method of Modified Quartz Sand thermal insulation mortar as described in claim 1-7 any one, it is characterised in that
Comprise the following steps：
(1) raw material by weight ratio needed for preparation；
(2) Modified Quartz Sand, foam glass powder, desulfurated plaster, floating bead, clinoptilolite powder, silicon calcium powder are first delivered to whirlpool
In wheel sand mill crush and 70-90 mesh sieves are crossed after uniform milled processed, obtain powder；
(3) silicon carbide fibre, lignocellulosic, guar gum, EVA resin and powder are delivered to agravic mixing jointly again
Mixed in machine, during which sequentially add the foaming agent, foam stabilizer, water reducer, hydrophober, water-loss reducer, obtain slurry；
(4) finally the slurry is stirred and evenly mixed by mixer, you can, and speed of agitator is set as 100-200r/min, stirs
The time of mixing is set as 1-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710410595.1A CN107141013A (en) | 2017-06-03 | 2017-06-03 | A kind of Modified Quartz Sand thermal insulation mortar and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710410595.1A CN107141013A (en) | 2017-06-03 | 2017-06-03 | A kind of Modified Quartz Sand thermal insulation mortar and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107141013A true CN107141013A (en) | 2017-09-08 |
Family
ID=59780433
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710410595.1A Withdrawn CN107141013A (en) | 2017-06-03 | 2017-06-03 | A kind of Modified Quartz Sand thermal insulation mortar and its production method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540405A (en) * | 2017-08-28 | 2018-01-05 | 湖州钟泰隔热材料有限公司 | A kind of quartz sand miberal powder insulation material and preparation method thereof |
| CN108503319A (en) * | 2018-05-24 | 2018-09-07 | 合肥聪亨新型建材科技有限公司 | A kind of thermal insulation mortar and preparation method thereof of addition ATO slurries |
| CN108516786A (en) * | 2018-04-26 | 2018-09-11 | 合肥天沃能源科技有限公司 | A kind of energy saving cracking resistance tidal thermal insulation mortar and preparation method thereof |
| CN108911629A (en) * | 2018-07-27 | 2018-11-30 | 芜湖市棠华建材科技有限公司 | A kind of energy-saving heat preserving mortar and preparation method |
| CN112159166A (en) * | 2020-08-31 | 2021-01-01 | 陕西宏城矿业有限公司 | Building mortar with gold mine tailings as full aggregates and preparation method thereof |
-
2017
- 2017-06-03 CN CN201710410595.1A patent/CN107141013A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540405A (en) * | 2017-08-28 | 2018-01-05 | 湖州钟泰隔热材料有限公司 | A kind of quartz sand miberal powder insulation material and preparation method thereof |
| CN108516786A (en) * | 2018-04-26 | 2018-09-11 | 合肥天沃能源科技有限公司 | A kind of energy saving cracking resistance tidal thermal insulation mortar and preparation method thereof |
| CN108503319A (en) * | 2018-05-24 | 2018-09-07 | 合肥聪亨新型建材科技有限公司 | A kind of thermal insulation mortar and preparation method thereof of addition ATO slurries |
| CN108911629A (en) * | 2018-07-27 | 2018-11-30 | 芜湖市棠华建材科技有限公司 | A kind of energy-saving heat preserving mortar and preparation method |
| CN112159166A (en) * | 2020-08-31 | 2021-01-01 | 陕西宏城矿业有限公司 | Building mortar with gold mine tailings as full aggregates and preparation method thereof |
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Application publication date: 20170908 |
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