CN105347766A - Gypsum-based thermal insulation mortar used for pouring - Google Patents

Gypsum-based thermal insulation mortar used for pouring Download PDF

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Publication number
CN105347766A
CN105347766A CN201510690389.1A CN201510690389A CN105347766A CN 105347766 A CN105347766 A CN 105347766A CN 201510690389 A CN201510690389 A CN 201510690389A CN 105347766 A CN105347766 A CN 105347766A
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CN
China
Prior art keywords
weight
gypsum
thermal insulation
insulation mortar
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510690389.1A
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Chinese (zh)
Inventor
陈雪梅
刘元正
钟华
李涛
王海军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEIFANG DELIN BUILDING MATERIAL Co Ltd
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WEIFANG DELIN BUILDING MATERIAL Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WEIFANG DELIN BUILDING MATERIAL Co Ltd filed Critical WEIFANG DELIN BUILDING MATERIAL Co Ltd
Priority to CN201510690389.1A priority Critical patent/CN105347766A/en
Publication of CN105347766A publication Critical patent/CN105347766A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions 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
    • C04B28/145Calcium sulfate hemi-hydrate with a specific crystal form
    • C04B28/147Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/70Grouts, e.g. injection mixtures for cables for prestressed concrete

Abstract

The present invention belongs to the technical field of building materials, and concretely relates to a gypsum-based thermal insulation mortar used for pouring. The gypsum-based thermal insulation mortar is prepared from: by weight, 100 parts of gypsum, 5-30 parts of cement, 0-30 parts of fly ash, 15-30 parts of mineral powder, 0-5 parts of exciting agent, 0.5-50 parts of light aggregate, 0.5-5 parts of retarder, 0.002-0.5 part of air-entraining admixture, 0.2-0.6 part of water reducing agent, 0.3-0.9 part of cellulose ether, 0-6 parts of gelatin powder, 0-0.5 part of starch ether, and 96-180 parts of water. The gypsum-based thermal insulation mortar has good fluidity and short setting time, is used for pouring, and is convenient for construction. The gypsum-based thermal insulation mortar can recycle the building gypsum prepared from various industrial by-product gypsums, and the building gypsum can be used for building thermal insulation engineering. The gypsum-based thermal insulation mortar has simple production technology, low energy consumption, mechanized construction, low heat conductivity coefficient, good fire resistance and low cost.

Description

A kind of gypsum base thermal insulation mortar for building
Technical field
The present invention relates to a kind of gypsum base thermal insulation mortar for building, belonging to solid waste comprehensive utilization and building material technical field.
Background technology
Along with the development of chemical industry, produce in some chemical industry production process with calcium sulfate is that the industrial residue of main component is industry by-product gypsum simultaneously.China often produces 1 ton of phosphoric acid and about discharges 5 tons of phosphogypsums, and along with the production-scale continuous expansion of phosphorous chemical industry, increasing phosphogypsum heap is abandoned.Emission reduction targets along with sulfurous gas requires to improve, and the annual production of desulfurated plaster also improves gradually, and the desulfurated plaster output to China in 2015 will reach 8,000 ten thousand tons.For this reason, how to make full use of industry by-product gypsum, become a task of building materials industry.
The application of building heat-insulating mortar heat insulation system has become one of major technique realizing building energy conservation, the target for energy-saving and emission-reduction that country's " 12 " energy-saving and emission-reduction plan proposes, and requires building energy conservation more than 65%, needs the efficient lagging material of safety and environmental protection badly.But existing cement based thermal insulation mortar easily occurs hollowing after plastering a wall, ftractures, the problem such as come off, and unit weight is comparatively large, time of coagulation is long, needs layering to smear, long construction period.The present invention's a kind of gypsum base thermal insulation mortar for building that utilized plaster of Paris to prepare, can primary concreting thermal insulation layer and time of coagulation short, substantially reduce construction period, for industry by-product gypsum recycling provides new way.
Summary of the invention
The object of the invention is to solve the homogeneity of thermal insulation mortar, the contradiction between globality and mobility, parcel property is good simultaneously, without the gypsum base thermal insulation mortar of the gather materials problems such as floating, bleeding to provide one to have comparatively large fluidity.This mortar heat-insulating property is outstanding, can reach the fire protection requirement of A level, the thermal insulation layer that can be used for building building block, the airtight steel construction and carrying out pouring into reserving hole is filled or other need water building thermal insulation material prefabricated components and the place needing pumping or build.
Content of the present invention is: a kind of gypsum base thermal insulation mortar for building, it is characterized in that, this thermal insulation mortar is made up of the component of following weight part: gypsum 100 weight part, cement 5-30 weight part, flyash 0-30 weight part, breeze 15-30 weight part, exciting agent 0-5 weight part, light-weight aggregate 0.5-50 weight part, retardant 0.5-5 weight part, air entrapment agent 0.002-0.5 weight part, water reducer 0.2-0.6 weight part, ether of cellulose 0.3-0.9 weight part, rubber powder 0-6 weight part, starch ethers 0-0.5 weight part, water 96-180 weight part.
In content of the present invention: described gypsum is beta-type semi-hydrated gypsum, be mainly industrial by-product phosphogypsum, the beta-type semi-hydrated gypsum of flue gas desulfurization gypsum through calcining, β-CaSO wherein 4﹒ 1/2H 2o>=80%.
In content of the present invention: described exciting agent is unslaked lime or grey calcium.
In content of the present invention: described gypsum base thermal insulation mortar, it is characterized in that described light-weight aggregate is the one in granular polystyrene, glass bead, pearlstone.
In content of the present invention: described gypsum base thermal insulation mortar, it is characterized in that described retardant is the one in citric acid, boric acid, tartrate.
In content of the present invention: described gypsum base thermal insulation mortar, it is characterized in that described air entrapment agent is Sodium dodecylbenzene sulfonate, described water reducer is the polycarboxylate water-reducer of pulvis, described ether of cellulose main component is hydroxyethylmethyl-cellulose, viscosity 150000mPa ﹒ s, described latex powder is one or both in styrenic-acrylic latex powder, Acrylic emulsion powder, vinyl acetate-ethylene latex powder.Described starch ethers, main component is sulfuric acid bay sodium alkoxide.
The mobility that the present invention tests measures with reference to GB/T50448-2008 " cement-based grouting material utilisation technology specification ".
Compared with prior art, the present invention has features and beneficial effect
1. due to the physical property that gypsum is intrinsic, under identical quality requirements, gypsum is larger than the volume of cement, can wrap up more light-weight aggregate, and thus the unit weight of gypsum base thermal insulation mortar is lighter, thermal conductivity is less, and thermal and insulating performance is good.
2. gypsum base thermal insulation mortar has good workability, water-retentivity and larger mobility, can be used for building the thermal insulation layer of building block, the airtight steel construction pouring into reserving hole or other prefabricated components that need water building thermal insulation material and the place needing pumping or build.
3. gypsum base thermal insulation mortar fast solidifying, curing cycle is short, in conjunction with good workability, greatly can increase work efficiency, speed up the work.
4. have superior fire resistance, when presence of fire, gypsum hardenite has mass crystallization water to discharge under heat effect, forms steam, blocks spreading of flame, absorbs a large amount of heat in whole dehydration simultaneously.
5. the present invention is that industry by-product gypsum opens a new utilization ways, simultaneously also for construction industry provides a kind of thermal insulation mortar of low cost.
Embodiment
The invention will be further described for embodiment plan given below; but can not be interpreted as it is limiting the scope of the invention; some nonessential improvement and adjustment that person skilled in art makes the present invention according to the content of the invention described above, still belong to protection scope of the present invention.
Embodiment 1
Thermal insulation mortar, it consists of: phosphorus plaster of Paris 100 weight part, cement 15 weight part, breeze 30 weight part, unslaked lime 3 weight part, granular polystyrene 1 weight part, citric acid 0.07 weight part, sodium laurylsulfonate 0.002 weight part, water reducer 0.45 weight part, ether of cellulose 0.3 weight part, rubber powder 1.3 weight part, starch ethers 0.02 weight part, water 149 weight part.
Above-mentioned starting material (removing light-weight aggregate) are weighed by proportioning and stirs, then add light-weight aggregate mix and evenly can prepare thermal insulation mortar.
Obtained thermal insulation mortar degree of mobilization is 240mm, and unit weight is 450Kg/m3, and ultimate compression strength is 1.5MPa.
Embodiment 2
Thermal insulation mortar, it consists of: phosphorus plaster of Paris 100 weight part, cement 30 weight part, breeze 15 weight part, granular polystyrene 1 weight part, citric acid 0.07 weight part, sodium laurylsulfonate 0.002 weight part, water reducer 0.45 weight part, ether of cellulose 0.3 weight part, rubber powder 1.45 weight part, starch ethers 0.02 weight part, water 149 weight part.
Above-mentioned starting material (removing light-weight aggregate) are weighed by proportioning and stirs, then add light-weight aggregate mix and evenly can prepare thermal insulation mortar.
Obtained thermal insulation mortar degree of mobilization is 235mm, and unit weight is 458Kg/m3, and ultimate compression strength is 1.9MPa.
Embodiment 3
Thermal insulation mortar, it consists of: half water desulfurated plaster 100 weight part, cement 15 weight part, breeze 30 weight part, ash calcium 5 weight part, granular polystyrene 1 weight part, citric acid 0.2 weight part, sodium laurylsulfonate 0.002 weight part, water reducer 0.45 weight part, ether of cellulose 0.15 weight part, rubber powder 2 weight part, starch ethers 0.01 weight part, water 116 weight part.
Above-mentioned starting material (removing light-weight aggregate) are weighed by proportioning and stirs, then add light-weight aggregate mix and evenly can prepare thermal insulation mortar.
Obtained thermal insulation mortar degree of mobilization is 250mm, and unit weight is 488Kg/m3, and ultimate compression strength is 2.4MPa.
Embodiment 4
Thermal insulation mortar, it consists of: phosphorus plaster of Paris 100 weight part, cement 8 weight part, breeze 30 weight part, unslaked lime 5 weight part, granular polystyrene 1.5 weight part, citric acid 0.05 weight part, sodium laurylsulfonate 0.002 weight part, water reducer 0.45 weight part, ether of cellulose 0.3 weight part, rubber powder 1 weight part, starch ethers 0.03 weight part, water 150 weight part.
Above-mentioned starting material (removing light-weight aggregate) are weighed by proportioning and stirs, then add light-weight aggregate mix and evenly can prepare thermal insulation mortar.
Obtained thermal insulation mortar degree of mobilization is 230mm, and unit weight is 325Kg/m3, and ultimate compression strength is 0.9MPa.
Embodiment 5
Thermal insulation mortar, it consists of: half water desulfurated plaster 100 weight part, cement 30 weight part; breeze 15 weight part; ash calcium 2 weight part, glass bead 56 weight part, citric acid 0.2 weight part; sodium laurylsulfonate 0.004 weight part; water reducer 0.45 weight part, ether of cellulose 0.15 weight part, rubber powder 3 weight part; starch ethers 0.01 weight part, water 250 weight part.
Above-mentioned starting material (removing light-weight aggregate) are weighed by proportioning and stirs, then add light-weight aggregate mix and evenly can prepare thermal insulation mortar.
Obtained thermal insulation mortar degree of mobilization is 225mm, and unit weight is 325Kg/m3, and ultimate compression strength is 1.1MPa.
Embodiment 6
Thermal insulation mortar, it consists of: phosphorus plaster of Paris 100 weight part, cement 5 weight part; breeze 30 weight part; ash calcium 8 weight part, glass bead 75 weight part, citric acid 0.07 weight part; sodium laurylsulfonate 0.005 weight part; water reducer 0.3 weight part, ether of cellulose 0.2 weight part, rubber powder 2 weight part; starch ethers 0.01 weight part, water 260 weight part.
Above-mentioned starting material (removing light-weight aggregate) are weighed by proportioning and stirs, then add light-weight aggregate mix and evenly can prepare thermal insulation mortar.
Obtained thermal insulation mortar degree of mobilization is 230mm, and unit weight is 308Kg/m3, and ultimate compression strength is 0.6MPa.
In above-described embodiment: described phosphorus plaster of Paris is that industrial by-product phosphogypsum is through calcining the beta-type semi-hydrated gypsum of modified preparation, the waste residue beta-type semi-hydrated gypsum through calcine of half water desulfurated plaster for producing after coal fired power plant flue gas desulfurization, β-CaSO wherein 4﹒ 1/2H 2o>=80%.Described granular polystyrene is expanded polystyrene foams, granularity≤5mm.Unit weight≤the 150Kg/m of described glass bead 3, granularity 20-70 order.Described water reducer is the polycarboxylate water-reducer of pulvis, described ether of cellulose main component is hydroxyethylmethyl-cellulose, viscosity 150000mPa ﹒ s, described latex powder is one or both in styrenic-acrylic latex powder, Acrylic emulsion powder, vinyl acetate-ethylene latex powder.Described starch ethers, main component is sulfuric acid bay sodium alkoxide.

Claims (6)

1. the gypsum base thermal insulation mortar for building, it is characterized in that, this thermal insulation mortar is made up of the component of following weight part: gypsum 100 weight part, cement 5-30 weight part, flyash 0-30 weight part, breeze 15-30 weight part, exciting agent 0-5 weight part, light-weight aggregate 0.5-50 weight part, retardant 0.5-5 weight part, air entrapment agent 0.002-0.5 weight part, water reducer 0.2-0.6 weight part, ether of cellulose 0.3-0.9 weight part, rubber powder 0-6 weight part, starch ethers 0-0.5 weight part, water 96-180 weight part.
2. gypsum base thermal insulation mortar according to claim 1, is characterized in that described gypsum is beta-type semi-hydrated gypsum, is mainly industrial by-product phosphogypsum, the beta-type semi-hydrated gypsum of flue gas desulfurization gypsum through calcining, β-CaSO wherein 4﹒ 1/2H 2o>=80%.
3. gypsum base thermal insulation mortar according to claim 1, is characterized in that described exciting agent is unslaked lime or grey calcium.
4. gypsum base thermal insulation mortar according to claim 1, is characterized in that described light-weight aggregate is the one in granular polystyrene, glass bead, pearlstone.
5. gypsum base thermal insulation mortar according to claim 1, is characterized in that described retardant is the one in citric acid, boric acid, tartrate.
6. gypsum base thermal insulation mortar according to claim 1, it is characterized in that described air entrapment agent is Sodium dodecylbenzene sulfonate, described water reducer is the polycarboxylate water-reducer of pulvis, described ether of cellulose main component is hydroxyethylmethyl-cellulose, viscosity 150000mPa ﹒ s, described latex powder is one or both in styrenic-acrylic latex powder, Acrylic emulsion powder, vinyl acetate-ethylene latex powder; Described starch ethers, main component is sulfuric acid bay sodium alkoxide.
CN201510690389.1A 2015-10-23 2015-10-23 Gypsum-based thermal insulation mortar used for pouring Pending CN105347766A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105859239A (en) * 2016-05-09 2016-08-17 马振义 Gypsum-based organic and inorganic composite insulating mortar and preparation method thereof
CN105967622A (en) * 2016-05-09 2016-09-28 马振义 Insulation mortar prepared by compounding phosphogypsum and fluorgypsum as well as preparation method thereof
CN106007623A (en) * 2016-05-24 2016-10-12 深圳市华泰汇邦建材科技有限公司 One-step formed putty-free chemical ardealite mortar and spraying method thereof
CN106007624A (en) * 2016-05-24 2016-10-12 深圳市华泰汇邦建材科技有限公司 One-time-forming putty-free desulfurized gypsum mortar and spraying method thereof
CN106630890A (en) * 2016-11-25 2017-05-10 云南昆钢钢结构股份有限公司 A light ardealite-based fireproof non-burned building block and a preparing method thereof
CN106677418A (en) * 2017-01-12 2017-05-17 云南昆钢建设集团有限公司 Cast-in-situ ardealite based early strength fireproof composite wallboard and preparation method thereof
CN106904922A (en) * 2017-02-18 2017-06-30 四川华邦保和涂料有限公司 A kind of preparation method of ardealite base exterior wall internal insulation anticracking grout
CN107129220A (en) * 2017-06-16 2017-09-05 中南大学 A kind of heat-insulating masonry mortar and its compound method
CN107746288A (en) * 2017-09-19 2018-03-02 江苏尼高科技有限公司 The preparation method of ultralight foamed gypsum, the self heat-preserving concrete building block of the ultralight foamed gypsum of filling and building block
CN108373311A (en) * 2018-03-15 2018-08-07 云南云天任高实业有限公司 A kind of ardealite base polystyrene foamed particle heat insulation mortar
CN108395180A (en) * 2018-05-16 2018-08-14 合肥欧克斯新型建材有限公司 A kind of gypsum base heat insulating mortar and preparation method thereof
CN108467246A (en) * 2018-03-30 2018-08-31 上海恪耐新材料科技有限公司 Mortar is built in a kind of spray of fire-retardant type thermal insulation sound-insulation wall
CN108675743A (en) * 2018-06-14 2018-10-19 贵州永合益环保科技有限公司 A kind of ardealite base thermal insulation mortar and preparation method thereof
CN106316320B (en) * 2016-08-18 2019-02-19 苏州大乘环保新材有限公司 A kind of resistance to tidal stencils gypsum base compound insulating material and preparation method thereof
CN110028297A (en) * 2018-01-12 2019-07-19 广西壮族自治区建筑材料科学研究设计院 It is a kind of to prepare building heat-insulating mortar and preparation method thereof with desulfurized gypsum

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CN104788073A (en) * 2015-04-22 2015-07-22 武汉理工大学 Heat-preservation moisture-adjusting type semi-hydrated gypsum cast-in-situ wall body material
CN104829203A (en) * 2015-03-24 2015-08-12 上海市建筑科学研究院(集团)有限公司 Desulfurization plaster light-weight aggregate thermal insulation mortar and preparing method thereof

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CN103496934A (en) * 2013-09-18 2014-01-08 武汉理工大学 Phosphogypsum-based surface layer plastering gypsum material and preparation method thereof
CN103553526A (en) * 2013-10-16 2014-02-05 上海利物宝建筑科技有限公司 Gypsum-based door and window seam filling and sealing mortar as well as preparation method and application thereof
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105967622A (en) * 2016-05-09 2016-09-28 马振义 Insulation mortar prepared by compounding phosphogypsum and fluorgypsum as well as preparation method thereof
CN105859239A (en) * 2016-05-09 2016-08-17 马振义 Gypsum-based organic and inorganic composite insulating mortar and preparation method thereof
CN106007624A (en) * 2016-05-24 2016-10-12 深圳市华泰汇邦建材科技有限公司 One-time-forming putty-free desulfurized gypsum mortar and spraying method thereof
CN106007623B (en) * 2016-05-24 2018-06-22 深圳摩盾环保新材料有限公司 Putty chemical phosphorus gypsum mortar and its spraying method are exempted from one-pass molding
CN106007623A (en) * 2016-05-24 2016-10-12 深圳市华泰汇邦建材科技有限公司 One-step formed putty-free chemical ardealite mortar and spraying method thereof
CN106007624B (en) * 2016-05-24 2018-06-19 深圳摩盾环保新材料有限公司 Putty Desulfurization gypsum sand pulp and its spraying method are exempted from one-pass molding
CN106316320B (en) * 2016-08-18 2019-02-19 苏州大乘环保新材有限公司 A kind of resistance to tidal stencils gypsum base compound insulating material and preparation method thereof
CN106630890A (en) * 2016-11-25 2017-05-10 云南昆钢钢结构股份有限公司 A light ardealite-based fireproof non-burned building block and a preparing method thereof
CN106677418A (en) * 2017-01-12 2017-05-17 云南昆钢建设集团有限公司 Cast-in-situ ardealite based early strength fireproof composite wallboard and preparation method thereof
CN106904922A (en) * 2017-02-18 2017-06-30 四川华邦保和涂料有限公司 A kind of preparation method of ardealite base exterior wall internal insulation anticracking grout
CN107129220A (en) * 2017-06-16 2017-09-05 中南大学 A kind of heat-insulating masonry mortar and its compound method
CN107746288A (en) * 2017-09-19 2018-03-02 江苏尼高科技有限公司 The preparation method of ultralight foamed gypsum, the self heat-preserving concrete building block of the ultralight foamed gypsum of filling and building block
CN110028297A (en) * 2018-01-12 2019-07-19 广西壮族自治区建筑材料科学研究设计院 It is a kind of to prepare building heat-insulating mortar and preparation method thereof with desulfurized gypsum
CN108373311A (en) * 2018-03-15 2018-08-07 云南云天任高实业有限公司 A kind of ardealite base polystyrene foamed particle heat insulation mortar
CN108467246A (en) * 2018-03-30 2018-08-31 上海恪耐新材料科技有限公司 Mortar is built in a kind of spray of fire-retardant type thermal insulation sound-insulation wall
CN108395180A (en) * 2018-05-16 2018-08-14 合肥欧克斯新型建材有限公司 A kind of gypsum base heat insulating mortar and preparation method thereof
CN108675743A (en) * 2018-06-14 2018-10-19 贵州永合益环保科技有限公司 A kind of ardealite base thermal insulation mortar and preparation method thereof

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Application publication date: 20160224