CN1247481C - Expansive pearlite-hard cilicon calcium stone composite thermal insulating material and preparing process thereof - Google Patents

Expansive pearlite-hard cilicon calcium stone composite thermal insulating material and preparing process thereof Download PDF

Info

Publication number
CN1247481C
CN1247481C CN 200410006303 CN200410006303A CN1247481C CN 1247481 C CN1247481 C CN 1247481C CN 200410006303 CN200410006303 CN 200410006303 CN 200410006303 A CN200410006303 A CN 200410006303A CN 1247481 C CN1247481 C CN 1247481C
Authority
CN
China
Prior art keywords
xonotlite
pearlstone
temperature
insulating material
water
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.)
Expired - Fee Related
Application number
CN 200410006303
Other languages
Chinese (zh)
Other versions
CN1559954A (en
Inventor
倪文
牛福生
李建平
徐丽
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.)
University of Science and Technology Beijing USTB
Original Assignee
University of Science and Technology Beijing USTB
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 University of Science and Technology Beijing USTB filed Critical University of Science and Technology Beijing USTB
Priority to CN 200410006303 priority Critical patent/CN1247481C/en
Publication of CN1559954A publication Critical patent/CN1559954A/en
Application granted granted Critical
Publication of CN1247481C publication Critical patent/CN1247481C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • C04B28/18—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 mixtures of the silica-lime type
    • C04B28/186—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 mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step
    • C04B28/188—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 mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step the Ca-silicates being present in the starting mixture

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

The present invention relates to a composite thermal insulating material containing expanded pearlite and xonotlite and a preparation method thereof. The present invention belongs to the field of thermal insulating material and is characterized in that the expanded perlite adopts a product whose loose volume weight is 60 to 100 kg/m<3>, and a xonotlite active material slurry is mixed in, wherein the mixing ratio is: the expanded perlite accounts for 74 to 85 wt%, and the dry substance of the xonotlite active material slurry accounts for 14 to 25 wt%; and additionally, 1.0 wt% of alkali resistant glass fiber is added as reinforcement fibers. The mixed materials are uniformly stirred, and then the mixture is shaped by filter pressing in a mould with a water filtering function by a pressing machine. The pressure intensity in pressing is controlled at 0.10 to 0.15MPa; the wet blanks after shaping by filter pressing are put into a drying kiln to be dried; the temperature of the drying kiln is controlled at 50 to 110 DEG C; the water ratio of the product is not higher than 1.0 % after the product is dried; and the water ratio after moisture absorption in the air is not higher than 4.0 %. Compared with the traditional water glass combining expanded perlite products, the thermal coefficient of the product of the present invention is reduced by about 30% at 800 DEG C, the bending strength and compressive strength are increased by more than one time, the using temperature is increased by about 200 DEG C, and the preparing cost is nearly the same as the traditional expanded perlite products.

Description

A kind of pearlstone-xonotlite compound insulating material and preparation method thereof
Technical field
The invention belongs to field of heat insulating materials, particularly a kind of pearlstone-xonotlite compound insulating material.
Background technology
Expanded perlite product is because cheap, has again that unharmful substance discharges in fire-resistant, anticorrosive and the use, is easy to characteristics such as harmless treatment when removing, thereby be one of inanimate matter lagging material of domestic usage quantity maximum.The pearlstone raw material is to be made it produce expanded and obtain through 850 ℃～1050 ℃ heat fast by the natural peral rock and ore.Below 50 μ m, the volume density of expanded particle itself is generally less than 150kg/m to the pore dimension of expanded perlite granule inside mostly 3, void content is more than 90%.Therefore expanded perlite granule itself is at normal temperature or at high temperature lower thermal conductivity to be arranged all.As matrix material expanded perlite granule is combined with cement or water glass but present expansion pearlite thermal insulation product (sheet material, shell or other shape material) is many.If with cement be matrix material then cement be full of millimeter grade hole crack between the particle, the volume density of goods is increased considerably, aggravated the solid thermal conduction, the thermal conductivity of goods is increased.If use water glass as matrix material, though the volume density of goods may be very low, goods also have lower thermal conductivity at normal temperatures, but because the pore dimension between the goods endoparticle is bigger, therefore the rising of the thermal conductivity of this goods is very fast under the condition of high temperature, thereby the heat-insulating property of material is reduced greatly.Use above-mentioned two kinds of matrix materials that the high thermal resistance of goods is descended significantly.
Summary of the invention
The present invention adopts the active slip of xonotlite as matrix material, makes pearlstone-xonotlite compound insulating material, than traditional expanded perlite product by a relatively large margin raising is arranged all at aspects such as thermal conductivity, intensity and high thermal resistancies.
Principle of the present invention:
The active slip of xonotlite is the intermediates of producing in the xonotlite type calcium-silicate thermal insulation material process.The control production process makes the active slip of xonotlite be made up of water, xonotlite secondary particle and colloid three parts, and the main component of the active slip of xonotlite is an xonotlite secondary particle.Xonotlite secondary particle is formed by the winding mutually of fibrous xonotlite crystal, intergrowth and adhesion, outer fiber is closeer, inside is bordering on hollow, and the volume density and the pearlstone of this offspring are close, and the thermal conductivity of particle itself is lower than pearlstone.The physical dimension of xonotlite secondary particle is 10～100 μ m, be suitable between the filling expansion perlite products endoparticle than macrovoid.
In addition, owing to contain a certain amount of colloid in the active slip of xonotlite, thereby have cohesiveness.These colloids in fact also are made up of the low-down xonotlite crystal of the degree of crystallinity with nanometer and inferior nano-scale.The variation of essence can not take place in xonotlite and colloid when heating below 1000 ℃.Adopt the active slip of this xonotlite as matrix material, except simple cohesive action, also can bring into play the packing action of xonotlite secondary particle, eliminate the large-size hole in the pearlstone.Adopt the active slip of xonotlite not resemble in addition and adopt the use temperature that can reduce expanded perlite product water glass and the cement as matrix material.Therefore the present invention adopts the matrix material of the active slip of xonotlite as expanded perlite product, compares with the conventional expanded perlite products, and thermal conductivity has tangible reduction, and intensity and resistance to elevated temperatures are significantly improved.
Preparation technology:
One, the preparation of the active slip of xonotlite
1, the raw material of the active slip of preparation xonotlite
The main raw material of the active slip of preparation xonotlite is quartz and lime.Used quartz is that granularity is the silica powder of≤40 μ m.Silica powder can form through fragmentation and grinding with quartzite, vein quartz or quartz sand, also can be the fine-grained powder quartz of natural output.SiO in the quartz raw material 2Content should be greater than 98.0Wt.%.Used lime is common building lime, and CaO content should be at 80.0～99.6Wt.%, and MgO content should be at 0.1～10.0Wt.%, SiO 2Content should be at 0.1～10.0Wt.%, Al 2O 3Content should be at 0.1～3.0Wt.%, Fe 2O 3Content should be at 0.1～2.0Wt.%.Used lime is cleared up with 20～60 ℃ warm water, and crosses 100 orders and 200 order twice screen clothes, and leaching lime-ash is that milk of lime is standby.
2, batching and reaction conditions
With silica powder with by the milk of lime of above-mentioned requirements preparation with CaO/SiO 2Molar ratio prepare burden 1.10～0.98, and amount of makeup water to the ratio of water/(silica powder+lime) is 15～25, as the mixed slurry before the reaction.Above-mentioned mixed slurry packed into carry out the hot dynamic response of high-temperature high pressure water after the autoclave sealing that has whipping appts.Reactor heats up and finished in 1.5～3.0 hours, is incubated 1.0～3.0 hours again after temperature rises to 220 ℃, and at this moment the equilibrium pressure in the reactor is about 2MPa.Stop supplying heat source after insulating process is finished and carry out the nature cooling.Naturally the reaction in the reactor is still being proceeded in Jiang Wen the process.Therefore should control the stirring dynamics and the heat-retaining condition of autoclave, making the interior temperature maintenance of autoclave is 3～5 hours in the time more than 180 ℃.When cooling to 160 ℃ naturally, should lead to water coolant and carry out fast cooling.Treat to take out slip after temperature in the kettle is reduced to nearly room temperature.Under the condition that has security measures to guarantee, (avoid scalding), also can be with and press material, to enhance productivity at 100～105 ℃.Can continuously stirring at above-mentioned reaction process mesohigh still, rotating speed is controlled at 50～80 rev/mins, also can intermittently stir, and rotating speed is controlled at 80～200 rev/mins.By the good slip of the resulting reaction of above-mentioned technology is exactly the active slip of xonotlite.
Two, the preparation of pearlstone-xonotlite compound insulating material
Pearlstone need select for use loose volume weight at 60～100kg/m 3Product.The pearlstone raw material is sneaked into the active slip of xonotlite, and blending ratio is: pearlstone accounts for 74～85Wt.%, and the active slip dry-matter of xonotlite accounts for 14～25Wt.%, and the alkali resistant glass fibre that adds 1.0Wt.% in addition is as fortifying fibre.After above-mentioned compound stirred, in mould, use the pressing machine pressure filtration molding with drainage function.Pressure is controlled at 0.10～0.15MPa during compacting.Wet base behind the pressure filtration molding is put into the oven dry kiln dry, and the temperature of drying kiln is controlled at 50～110 ℃.(water ratio≤1.0%, water ratio after the moisture absorption≤4.0% in air) can be used as the finished product sale after the goods drying.
The present invention has overcome water glass or cement can reduce common perlite products use temperature as binding agent shortcoming, but with micron order xonotlite hollow secondary particle fill expanded perlite granule than macrovoid, make the traditional water glass of the thermal conductivity ratio of composite product in the time of 800 ℃ descend nearly 30% in conjunction with expanded perlite product, folding strength and ultimate compression strength are enhanced about more than once, use temperature has improved nearly 200 ℃, and preparation cost remains on the level close with the conventional expanded perlite products.This composite product may replace xonotlite type calcium-silicate thermal insulation material (xonotlite type calcium-silicate thermal insulation material preparation cost is 2～3 times of conventional expanded perlite products) in many instances.Table 1 has compared the performance of typical conventional expanded perlite products, composite product of the present invention and typical xonotlite type calcium silicate board.
Performance Conventional expanded perlite products (water glass) Composite product of the present invention Xonotlite type calcium silicate board
Volume density (kg/m 3) (800 ℃ * 16h) thermal conductivity factor (W/mK) (25 ℃) thermal conductivity factors (W/mK) (800 ℃) of cold conditions compression strength (MPa) cold conditions rupture strength (MPa) drying line shrinkage factor (%) linear shrinkages (%) 150 0.56 0.31 0.80 4.50 0.052 0.169 ≤210 ≥1.56 ≥0.81 ≤1.50 ≤0.90 ≤0.056 ≤0.128 220 1.02 0.49 1.50 0.40 0.056 0.128
Embodiment
Embodiment 1
The preparation of the active slip of xonotlite
Used silica powder is natural output and the natural quartz powder behind simple wet concentration, and commodity are called " konilite ", granularity≤40 μ m, SiO 2Content is 99.1Wt.%, and the main chemical compositions of used lime is: CaO97.5Wt.%, MgO 1.2Wt.%, SiO 20.4Wt.%, Al 2O 30.4Wt.%, Fe 2O 30.5Wt.%.Lime is cleared up with 50 ℃ of warm water and is used for batching after 100 orders and 200 eye mesh screens are crossed in the back.
With above-mentioned " konilite " and milk of lime with CaO/SiO 2Ratio prepare burden 1.05, and amount of makeup water to the ratio of water/(silica powder+lime) is 20, as the mixed slurry before the reaction.Above-mentioned mixed slurry packed into carry out the hot dynamic response of high-temperature high pressure water after the autoclave sealing that has whipping appts.Reactor heats up and should finish in 1.8 hours, is incubated 3 hours again after temperature rises to 220 ℃, stops to supply with thermal source then and carries out the nature cooling.Naturally temperature in the kettle is reduced to 160 ℃ after lowering the temperature 4 hours.Feeding water coolant then in the cooling back installation of autoclave cools.When temperature is reduced to 105 ℃, open the discharge gate that is arranged on the autoclave bottom and carry out blowing, obtain the active slip of xonotlite.At above-mentioned reaction process mesohigh still is intermittently to stir, and stirs 10 minutes in per 1 hour, and rotating speed is controlled at 80 rev/mins.
The preparation of pearlstone-xonotlite compound insulating material
Selected pearlstone raw material is that loose volume weight is at 70kg/m 3Product.The pearlstone raw material is sneaked into the active slip of xonotlite, and blending ratio is: pearlstone accounts for 79Wt.%, and the active slip dry-matter of xonotlite accounts for 20Wt.%, and the alkali resistant glass fibre that adds 1.0Wt.% in addition is as fortifying fibre.After above-mentioned compound stirred, in mould, use the pressing machine pressure filtration molding with drainage function.Pressure is controlled at 0.10MPa during compacting.Wet base behind the pressure filtration molding is put into the oven dry kiln dry, and the temperature in of drying kiln is controlled at 50 ℃, and the high temperature section temperature is 110 ℃.The base substrate of drying gets product after check.The physicals of resulting product is as shown in table 2.
Physical properties of articles among table 2 embodiment 1
Volume density (kg/m 3) Cold strength (MPa) Drying line shrinking percentage (%) Burn 800 ℃ of back linear shrinkage ratios (%) * 16h) Thermal conductivity (W/mK)
Resistance to compression Anti-folding 25℃ 800℃
204 1.56 0.81 1.47 0.83 0.052 0.128
Embodiment 2
The preparation of the active slip of xonotlite
Used silica powder is with embodiment 1, granularity≤40 μ m, SiO 2Content is 98.5Wt.%, and the main chemical compositions of used lime is: CaO 89.3Wt.%, MgO 3.4Wt.%, SiO 25.2Wt.%, Al 2O 31.3Wt.%, Fe 2O 30.8Wt.%.Lime is cleared up with 50 ℃ of warm water and is used for batching after 100 orders and 200 eye mesh screens are crossed in the back.
With above-mentioned " konilite " and milk of lime with CaO/SiO 2Ratio prepare burden 1.03, and amount of makeup water to the ratio of water/(silica powder+lime) is 20, as the mixed slurry before the reaction.Above-mentioned mixed slurry packed into carry out the hot dynamic response of high-temperature high pressure water after the autoclave sealing that has whipping appts.Reactor heats up and finished in 1.5 hours, is incubated 2 hours again after temperature rises to 220 ℃, stops to supply with thermal source then and carries out the nature cooling.Naturally temperature in the kettle is reduced to 160 ℃ after lowering the temperature 4 hours.Feeding water coolant then in the cooling back installation of autoclave cools.When temperature is reduced to 105 ℃, open the discharge gate that is arranged on the autoclave bottom and carry out blowing, obtain the active slip of xonotlite.At above-mentioned reaction process mesohigh still is intermittently to stir, and stirs 30 minutes in per 1 hour, and rotating speed is controlled at 120 rev/mins.
The preparation of pearlstone-xonotlite compound insulating material
Selected pearlstone raw material loose volume weight is 80kg/m 3The pearlstone raw material is sneaked into the active slip of xonotlite, and blending ratio is: pearlstone accounts for 74Wt.%, and the active slip dry-matter of xonotlite accounts for 25Wt.%, and the alkali resistant glass fibre that adds 1.0Wt.% in addition is as fortifying fibre.After above-mentioned compound stirred, in mould, use the pressing machine pressure filtration molding with drainage function.Pressure is controlled at 0.15MPa during compacting.Wet base behind the pressure filtration molding is put into the oven dry kiln dry, and the temperature in of drying kiln is controlled at 50 ℃, and the high temperature section temperature is 110 ℃.The base substrate of drying gets product after check.The physicals of resulting product is as shown in table 3.
Physical properties of articles among table 3 embodiment 2
Volume density (kg/m 3) Cold strength (MPa) Drying line shrinking percentage (%) Burn 800 ℃ of back linear shrinkage ratios (%) * 16h) Thermal conductivity (W/mK)
Resistance to compression Anti-folding 25℃ 800℃
208 1.58 0.84 1.32 0.81 0.054 0.122

Claims (5)

1. pearlstone-xonotlite compound insulating material is characterized in that pearlstone selects for use loose volume weight at 60～100kg/m 3Product, the pearlstone raw material is sneaked into the active slip of xonotlite, blending ratio is: pearlstone accounts for 74～85Wt.%, and the active slip dry-matter of xonotlite accounts for 14～25Wt.%, and the alkali resistant glass fibre that adds 1.0Wt.% in addition is as fortifying fibre.
2. the preparation method of a kind of pearlstone as claimed in claim 1-xonotlite compound insulating material, after it is characterized in that compound that the active slip of pearlstone, xonotlite, alkali resistant glass fibre are formed stirs, in mould, use the pressing machine pressure filtration molding with drainage function; Pressure is controlled at 0.10～0.15MPa during compacting, and the wet base behind the pressure filtration molding is put into the oven dry kiln dry, and the temperature of drying kiln is controlled at 50～110 ℃, water ratio after the goods drying≤1.0%, water ratio after the moisture absorption≤4.0% in air.
3. the preparation method of pearlstone as claimed in claim 2-xonotlite compound insulating material, it is characterized in that the preparation technology of the active slip of xonotlite is: silica powder and milk of lime are with CaO/SiO 2Molar ratio prepare burden 1.10～0.98, and amount of makeup water to the ratio of water/(silica powder+lime) is 15～25, and as the mixed slurry before the reaction, milk of lime is cleared up with 20～60 ℃ warm water by lime, and cross 100 orders and 200 order twice screen clothes, leach lime-ash and make; Silica powder and milk of lime mixed slurry are packed into and are carried out the hot dynamic response of high-temperature high pressure water after the autoclave sealing that has whipping appts, reactor is warming up to 220 ℃ and finished in 1.5～3.0 hours, be incubated 1.0～3.0 hours again after temperature rises to 220 ℃, at this moment the equilibrium pressure in the reactor is about 2MPa; Stop supplying heat source after insulating process is finished and carry out the nature cooling, naturally the reaction in the reactor is still being proceeded in Jiang Wen the process, therefore control the stirring dynamics and the heat-retaining condition of autoclave, making the interior temperature maintenance of autoclave is 3～5 hours in the time more than 180 ℃; Logical water coolant is lowered the temperature when cooling to 160 ℃ naturally, treats to take out slip after temperature in the kettle is reduced to nearly room temperature.
4. the preparation method of pearlstone as claimed in claim 3-xonotlite compound insulating material, it is characterized in that preparing the active slip reaction process of xonotlite mesohigh still and adopt continuously stirring, rotating speed is controlled at 50～80 rev/mins, naturally cool to 100～105 ℃ and be with and press material, to enhance productivity.
5. the preparation method of pearlstone as claimed in claim 3-xonotlite compound insulating material, it is characterized in that preparing the active slip reaction process of xonotlite mesohigh still and adopt intermittently stirring, rotating speed is controlled at 80～200 rev/mins, cools to 100～105 ℃ naturally and is with and presses material.
CN 200410006303 2004-02-24 2004-02-24 Expansive pearlite-hard cilicon calcium stone composite thermal insulating material and preparing process thereof Expired - Fee Related CN1247481C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410006303 CN1247481C (en) 2004-02-24 2004-02-24 Expansive pearlite-hard cilicon calcium stone composite thermal insulating material and preparing process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410006303 CN1247481C (en) 2004-02-24 2004-02-24 Expansive pearlite-hard cilicon calcium stone composite thermal insulating material and preparing process thereof

Publications (2)

Publication Number Publication Date
CN1559954A CN1559954A (en) 2005-01-05
CN1247481C true CN1247481C (en) 2006-03-29

Family

ID=34439742

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200410006303 Expired - Fee Related CN1247481C (en) 2004-02-24 2004-02-24 Expansive pearlite-hard cilicon calcium stone composite thermal insulating material and preparing process thereof

Country Status (1)

Country Link
CN (1) CN1247481C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101967052B (en) * 2010-09-15 2013-09-11 广东新元素板业有限公司 Process for manufacturing high-strength low-density asbestos fiber-free enhanced silicate plate
CN102863190B (en) * 2011-07-07 2014-10-08 刘学厚 Inorganic composite waterproof, fireproof and heat preservation material for buildings
CN102557559B (en) * 2011-12-28 2013-03-06 莱州明光隔热材料有限公司 Inorganic building external wall heat-insulation material and producing process
CN102619287A (en) * 2012-04-11 2012-08-01 青岛凤翔化工有限公司 Inorganic heat-insulation fireproof plate
CN103553501B (en) * 2013-11-05 2016-03-02 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 The preparation method of calcium-silicate thermal insulation material
CN104743977B (en) * 2015-03-12 2016-01-13 江苏科技大学 A kind of fireproof heat insulating material for boats and ships bulkhead and its preparation method and application
HUE059808T2 (en) 2019-05-22 2023-01-28 Knauf Aquapanel Gmbh Building panel with high fire resistance

Also Published As

Publication number Publication date
CN1559954A (en) 2005-01-05

Similar Documents

Publication Publication Date Title
CN101638324B (en) Light porous heat-insulating refractory material and preparation method and applications thereof
EP2602234B1 (en) Method for manufacturing of products from autoclaved aerated concrete and composition of autoclaved aerated concrete
CN100558672C (en) Reduce ceramic fiber composition and preparation technology thereof that higher temperature line changes
AU723822B2 (en) Method for making compressed articles of ceramic fibers and compressed articles obtained thereby
CN104973868B (en) High-strength high-alumina light heat-insulating fire resistant brick and its production method
US6296697B1 (en) Thermally insulating building material
CN1247481C (en) Expansive pearlite-hard cilicon calcium stone composite thermal insulating material and preparing process thereof
CN108017405A (en) A kind of preparation method of In-situ Mullite Whisker ceramic material
CN102633486B (en) Potassium hexatitanate whisker heat insulating brick and production method thereof
CN108101480A (en) A kind of preparation method of Anti-pressure aerated bricks
CN107555922A (en) A kind of anhydrous method for preparing building decoration calcium silicate board
CN101391878A (en) Graphite base heatproof and heat insulating material and production technique thereof
CN107010969A (en) A kind of preparation method of high-alumina brick
CN101560087A (en) High-temperature resistant heat insulating material using vermiculite as main raw material and method for manufacturing same
NO820440L (en) BENEFIT OF HIGH MECHANICAL STABILITY AT HIGH TEMPERATURES AND MANUFACTURING AND USING THIS
US4312674A (en) Composition and method of producing insoluble mag-oxy cements
CN108793919A (en) A kind of composite heat insulation block and preparation method thereof
CN114249577B (en) Aggregate for clay insulating brick and preparation method thereof, clay insulating brick and preparation method thereof
CN101362635B (en) Silica heat insulating products and preparation method thereof
CN104844127A (en) Light cementing material based on vitrified micro powder, light burn-free insulating refractory composite material and preparation method therefor
CN102717421A (en) Light, non-combustible and heat-insulated insulation board of outer wall and preparation method thereof
CN111747721A (en) Preparation method of mineral fiber reinforced hard calcium silicate fireproof plate
CN100400256C (en) Method for producing heat-insulating fire-proofing material of calcium silicate by pouring-shaping
CN110682628A (en) Preparation method of multilayer aluminum silicate heat insulation plate
KR100855122B1 (en) A composition for high-strength slag gypsum board and a manufacturing method of high-strength slag gypsum board

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20060329

Termination date: 20100224