CN101117005A - Cement flakeboard and production process thereof - Google Patents

Cement flakeboard and production process thereof Download PDF

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Publication number
CN101117005A
CN101117005A CNA2007101213236A CN200710121323A CN101117005A CN 101117005 A CN101117005 A CN 101117005A CN A2007101213236 A CNA2007101213236 A CN A2007101213236A CN 200710121323 A CN200710121323 A CN 200710121323A CN 101117005 A CN101117005 A CN 101117005A
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CN
China
Prior art keywords
cement
wood
slab
calcium
bonded
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
CNA2007101213236A
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Chinese (zh)
Inventor
龙玲
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.)
Research Institute of Wood Industry of Chinese Academy of Forestry
Original Assignee
Research Institute of Wood Industry of Chinese Academy of Forestry
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Filing date
Publication date
Application filed by Research Institute of Wood Industry of Chinese Academy of Forestry filed Critical Research Institute of Wood Industry of Chinese Academy of Forestry
Priority to CNA2007101213236A priority Critical patent/CN101117005A/en
Publication of CN101117005A publication Critical patent/CN101117005A/en
Pending legal-status Critical Current

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    • 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
    • C04B28/02Compositions 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 hydraulic cements other than calcium sulfates
    • 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
    • C04B2111/27Water resistance, i.e. waterproof or water-repellent materials
    • 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
    • C04B2111/52Sound-insulating materials
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The present invention provides a cement particle board and the manufacturing method thereof; the cement particle board comprises the weight percentage compositions of raw materials: 15 to 35 percent of wood wool (absolute dry wood wool), 15 to 45 percent of high-calcium fly ash, 30 to 55 percent of cement, 1 to 3 percent of sodium silicate, 0.3 to 1.8 percent of calcium chloride and 0.1 to 2 percent of addition agent. The method of the present invention uses high-calcium fly ash of industrial wastes, frutex or lops wood shavings for manufacture of hard board, thereby reaching the 'Cement Xylolite Slab (JC/T411-1991)' standard and saving production cost, reducing environmental pollution, expanding, at the same time, the range of wood raw materials for particle board production and creating higher economic value.

Description

Cement-bonded wood chipboard and production method thereof
Technical field
The present invention relates to a kind of structural lumber that uses flyash and preparation method thereof, particularly use the particieboard and the production method thereof of flyash.
Background technology
Cement-bonded wood chipboard is used as the acoustic barrier material of inside and outside wall board, partition plate, floor, railway or highway both sides etc. abroad in a large number, and application is at home at present also progressively enlarging.This sheet material is generally formed by cement, wooden shavings, flyash and various additive preparation, the timber intensity height, and fire protection flame retarding is good, and resistance to water and sound-insulating performance are all better.But in order to guarantee the physical and mechanical properties such as intensity of cement-bonded wood chipboard, require the calcium content of flyash lower usually, general calcium oxide content is lower than 8%.
CN 1861347A discloses a kind of light cement particieboard and production method thereof, and the cement-bonded wood chipboard density that this patent relates to only is 0.5-0.8g/cm 3, do not adopt flyash in the particieboard, and higher to the wooden shavings quality requirement, and wood shavings length could obtain better intensity greater than 30mm.
CN 1537822A discloses a kind of " wooden refinforced cement moulding plate and production technology thereof ", and wherein the raw material of cement moulding plate consists of wood wool, cement, flyash, sodium metasilicate and water, but does not relate to high-calcium fly ass and activator thereof.The calcium oxide content of use therein flyash is lower, if adopt when containing the high-calcium fly ass of 15% above calcium oxide, may cause the slab early strength lower, slab frangibility when unloading plate in this patent formulation.
High-calcium fly ass, because it contains 15% above calcium oxide, its hydration rate slowly and volumetric expansion after the aquation easily causes sheet material shrinkage factor height at normal temperatures, has reduced the intensity of sheet material, thereby has had a strong impact on the utilization of high-calcium fly ass aspect cement-bonded wood chipboard.
Summary of the invention
The objective of the invention is to provide a kind of at the problem that prior art exists is cement-bonded wood chipboard of adhesive and preparation method thereof with high-calcium fly ass and cement, and this cement-bonded wood chipboard has the characteristic of intensity height, waterproof flame retardant, insulation.
For realizing purpose of the present invention, one aspect of the present invention provides a kind of cement-bonded wood chipboard, comprises following raw materials in weight portion:
Wood wool (over dry wood shavings) 15~35
High-calcium fly ass (calcium oxide content 〉=15%) 15~45
Cement 30~55
Another aspect of the present invention provides a kind of cement-bonded wood chipboard, comprises following raw materials in weight portion:
Wood wool (over dry wood shavings) 15~35
High-calcium fly ass (calcium oxide content 〉=15%) 15~45
Cement 30~55
Sodium metasilicate 1~3
Calcium chloride 0.3~1.8
Wherein, also comprise the auxiliary agent of 0.1~2 weight portion, at least a in this auxiliary agent selective chlorination sodium, gypsum, calcium hydroxide, sodium sulphate, lignosulphonates, the triethanolamine.
Wherein, the content of calcium oxide is 15%~35% in the described high-calcium fly ass.
Wherein, described wood wool is prepared from by fast growing wood, brush wood or shrub, and the size of described wood wool is: long 10~100 millimeters, wide 1~10 millimeter, thick 0.1~1 millimeter.Can select length is the wood shavings of 10-30 millimeter.
Another aspect of the present invention provides a kind of cement-bonded wood chipboard preparation method, comprises being prepared as follows step:
1) wood wool, high-calcium fly ass, cement, sodium metasilicate, calcium chloride, water and auxiliary agent are mixed, stir, mat formation into slab then, slab buttress pressurization locking;
2) slab of locking buttress is sent into the fog room maintenance, plate is unloaded in cooling then;
3) sheet material send into steam-cured still carry out steam-cured, then the cooling;
4) sheet material is carried out drying;
Wherein add entry in the step 1) when mixed material, the ratio of the weight sum of the gross weight of water and high-calcium fly ass and cement is 0.45-0.55 in the control mixture: 1.
Wherein in the step 1), to described slab being exerted pressure and locking slab, described pressure is 3.5~4.5MPa.
Wherein in step 2) in, the control curing temperature is 70~90 ℃, relative humidity 70~100%, curing time 8~12 hours;
Wherein, 1.8~4 atmospheric pressure of steam-cured pressure of sheet material in step 3), 8~16 hours steam-cured time;
Wherein, the temperature of the described drying of control is 60~75 ℃ in step 4), makes the moisture content of sheet material reach 6~12%.
The high calcium fly-ash cement particieboard of the present invention's preparation has following advantage:
The high-calcium fly ass that cement-bonded wood chipboard utilization of the present invention is discarded usually guarantees that not only the serviceability of cement-bonded wood chipboard satisfies " cement sawdust plate (JC/T411-1991) " standard-required, and greatly reduces the cost of cement-bonded wood chipboard as adhesive.Table 1 is the performance indications requirement that the cement-bonded wood chipboard of " cement sawdust plate (JC/T411-1991) " standard code should reach.
Table 1 cement sawdust plate performance indications
Project High-class product Grade A Certified products
Moisture content (%) ≤12
Immersion 24h thickness swelling (%) ≤1.5 ≤2.0
Naturally contain rupture strength under the wet condition (MPa) 11.0 9.0 8.0
Anti-folding elastic modelling quantity (MPa) ≥3000
Vertical plane tensile strength (MPa) 0.5 0.4 0.3
The raw material high-calcium fly ass of cement-bonded wood chipboard of the present invention belongs to trade waste, the power plant need expend a large amount of funds and handle high-calcium fly ass, the present invention utilizes the discarded object in power plant to make cement-bonded wood chipboard and not only saves production cost but also reduced environmental pollution, has also created higher economic worth simultaneously; Another important source material of the present invention is shrub or brush wood wood shavings, because these wood wools are tiny, usually all be difficult to be used to make cement-bonded wood chipboard, adopt the cement-bonded wood chipboard of method manufacturing of the present invention not only can use these wood shavings, and can also reach " cement sawdust plate (JC/T411-1991) " standard, satisfy the serviceability of cement-bonded wood chipboard, so the present invention has also expanded manufacturing particieboard wood raw material scope.
The specific embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1:
1) get the raw materials ready according to following weight proportion:
Poplar brush wood wood shavings (moisture content 30%) 32.5kg
High-calcium fly ass (calcium oxide content 35%) 40kg
Cement 30kg
Sodium silicate liquid (mass percentage concentration 30%) 4.67kg
Calcium chloride liquid (mass percentage concentration 30%) 4.67kg
Triethanolamine 0.14kg
Wood shavings are of a size of long 30~60 millimeters, wide 1~6 millimeter, thick 0.3~0.8 millimeter.
2) to wood shavings sprays sodium silicate liquid, calcium chloride liquid and triethanolamine and stir, add cement, high-calcium fly ass and water then and mix, and the ratio of the weight sum of the gross weight of water and high-calcium fly ass and cement is 0.5: 1 in the control mixture;
3) with spreading machine compound is made slab, with the slab stacking, at room temperature through cold press pressurization locking slab, pressure is 3.7MPa;
4) the slab buttress of locking is sent into fog room, ordinary pressure curing 12 hours, 85 ℃ of control curing temperatures, relative humidity 95%, cooling naturally then, temperature reaches time-division plate below 40 ℃;
5) slab is sent into steam-cured still, under 3 atmospheric pressure steam-cured 14 hours, relative humidity 100%;
6) it is sent into dry kiln after making slab naturally cool to 40 ℃, under 60 ℃ of conditions, be dried to moisture content 6%~12%;
7) be cut to the sheet material of required specification.
" cement sawdust plate (the JC/T411-1991) " standard of employing, measure and obtain the plate property index:
Density (g/cm 3) 1.26
Naturally contain rupture strength under the wet condition (MPa) 10
Anti-folding elastic modelling quantity (MPa) 3800
Vertical plane tensile strength (MPa) 0.60
Immersion 24h thickness swelling (%) 1.5
Embodiment 2:
1) get the raw materials ready according to following weight proportion:
Aspen wood shavings (moisture content 30%) 32.5kg
High-calcium fly ass (calcium oxide content 30%) 30kg
Cement 40kg
Sodium silicate liquid (mass percentage concentration 30%) 7kg
Calcium chloride liquid (mass percentage concentration 30%) 4.67kg
Sodium sulphate liquid (mass percentage concentration 30%) 2.6kg
Triethanolamine 0.14kg
Aspen wood shavings is of a size of long 30~100 millimeters, wide 4~6 millimeters, thick 0.4~0.7 millimeter.
2) to wood shavings sprays sodium silicate liquid, calcium chloride liquid, sodium sulphate liquid and triethanolamine auxiliary agent and stir, add cement, high-calcium fly ass and water then and mix, and the ratio of the weight sum of the gross weight of water and high-calcium fly ass and cement is 0.55: 1 in the control mixture;
3) with spreading machine compound is made slab, with the slab stacking, at room temperature through cold press pressurization locking slab, pressure is 3.7MPa;
4) the slab buttress with locking enters fog room, ordinary pressure curing 10 hours, and 75 ℃ of curing temperatures, relative humidity 70%, cooling naturally then, temperature reaches time-division plate below 40 ℃;
5) slab is sent into steam-cured still, under 1.8 atmospheric pressure steam-cured 16 hours, relative humidity 100%;
6) it is sent into dry kiln after making slab naturally cool to below 40 ℃, under 70 ℃ of conditions, be dried to moisture content 6~12%;
7) be cut to the sheet material of required specification.
" cement sawdust plate (the JC/T411-1991) " standard of employing, measure and obtain the plate property index:
Density (g/cm 3) 1.26
Naturally contain rupture strength under the wet condition (MPa) 12
Anti-folding elastic modelling quantity (MPa) 4500
Vertical plane tensile strength (MPa) 0.65
Immersion 24h thickness swelling (%) 1.4
Embodiment 3:
1) get the raw materials ready according to following weight proportion:
Salix monogolica wood shavings (moisture content 30%) 26kg
High-calcium fly ass (calcium oxide content 15%) 23kg
Cement 52kg
Sodium silicate liquid (mass percentage concentration 30%) 6.25kg
Calcium chloride liquid (mass percentage concentration 30%) 5kg
Gypsum 1.2kg
Triethanolamine 0.21kg
The salix monogolica wood shavings are of a size of long 10~30 millimeters, wide 1~4 millimeter, thick 0.4~1.0 millimeter.
2) to wood shavings sprays sodium silicate liquid, calcium chloride liquid and triethanolamine and stir, add cement, high-calcium fly ass, gypsum and water then and mix, and the ratio of the weight sum of the gross weight of water and high-calcium fly ass and cement is 0.45: 1 in the control mixture;
3) with spreading machine compound is made slab, with the slab stacking, at room temperature through cold press pressurization locking slab, pressure is 3.7MPa;
4) the slab buttress with locking enters fog room, ordinary pressure curing 12 hours, and 90 ℃ of curing temperatures, relative humidity 90%, cooling naturally then, temperature reaches time-division plate below 40 ℃;
5) slab is sent into steam-cured still, under 4 atmospheric pressure steam-cured 8 hours, relative humidity 100%;
6) it is sent into dry kiln after making slab naturally cool to below 40 ℃, under 70 ℃ of conditions, be dried to moisture content 6%~12%;
7) be cut to the sheet material of required specification.
" cement sawdust plate (the JC/T411-1991) " standard of employing, measure and obtain the plate property index:
Density (g/cm 3) 1.26
Naturally contain rupture strength under the wet condition (MPa) 9.5
Anti-folding elastic modelling quantity (MPa) 3500
Vertical plane tensile strength (MPa) 0.60
Immersion 24h thickness swelling (%) 1.5
Embodiment 4:
1) get the raw materials ready according to following weight proportion:
Salix monogolica wood shavings (moisture content 30%) 32.5kg
High-calcium fly ass (calcium oxide content 30%) 30kg
Cement 40kg
Sodium silicate liquid (mass percentage concentration 30%) 10kg
Calcium chloride liquid (mass percentage concentration 30%) 1kg
Sodium chloride 1.7kg
Triethanolamine 0.21kg
The salix monogolica wood shavings are of a size of long 10~30 millimeters, wide 1~4 millimeter, thick 0.4~1.0 millimeter.
2) to wood shavings sprays sodium silicate liquid, calcium chloride liquid and triethanolamine and stir, add cement, high-calcium fly ass, sodium chloride and water then and mix, and the ratio of the weight sum of the gross weight of water and high-calcium fly ass and cement is 0.5: 1 in the control mixture;
3) with spreading machine compound is made slab, with the slab stacking, at room temperature through cold press pressurization locking slab, pressure is 3.7MPa;
4) the slab buttress with locking enters fog room, ordinary pressure curing 9 hours, and 80 ℃ of curing temperatures, relative humidity 75%, cooling naturally then, temperature reaches time-division plate below 40 ℃;
5) slab is sent into steam-cured still, under 2 atmospheric pressure steam-cured 10 hours, relative humidity 100%;
6) it is sent into dry kiln after making slab naturally cool to below 40 ℃, under 60 ℃ of conditions, be dried to moisture content 6%~12%;
7) be cut to the sheet material of required specification.
" cement sawdust plate (the JC/T411-1991) " standard of employing, measure and obtain the plate property index:
Density (g/cm 3) 1.26
Naturally contain rupture strength under the wet condition (MPa) 9.0
Anti-folding elastic modelling quantity (MPa) 3500
Vertical plane tensile strength (MPa) 0.60
Immersion 24h thickness swelling (%) 1.5
Embodiment 5:
1) get the raw materials ready according to following weight proportion:
Masson pine wood shavings (moisture content 30%) 35kg
High-calcium fly ass (calcium oxide content 15%) 30kg
Cement 38kg
Sodium silicate liquid (mass percentage concentration 30%) 3.5kg
Calcium chloride liquid (mass percentage concentration 30%) 6kg
Sodium lignosulfonate 1.0kg
Triethanolamine 0.21kg
Wherein auxiliary agent can also adopt lignosulphonates such as Lignosite, lignosulphonic acid magnesium, ammonium lignin sulfonate to substitute except that using the sodium lignosulfonate.
Wood shavings are of a size of long 10~30 millimeters, wide 1~4 millimeter, thick 0.4~1.0 millimeter.
2) to wood shavings sprays sodium silicate liquid, calcium chloride liquid and triethanolamine and stir, add cement, high-calcium fly ass, sodium lignosulfonate and water then and mix, control water weight is 0.5: 1 with the ratio of the weight of high-calcium fly ass and cement;
3) with spreading machine compound is made slab, with the slab stacking, at room temperature through cold press pressurization locking slab, pressure is 3.7MPa;
4) the slab buttress with locking enters fog room, ordinary pressure curing 10 hours, and 80 ℃ of curing temperatures, relative humidity 85% naturally cools to 40 ℃ of time-division plates then;
5) slab is sent into steam-cured still, under 2 atmospheric pressure steam-cured 12 hours, relative humidity 100%;
6) it is sent into dry kiln after making slab naturally cool to below 40 ℃, under 70 ℃ of conditions, be dried to moisture content 6%~12%;
7) be cut to the sheet material of required specification.
" cement sawdust plate (the JC/T411-1991) " standard of employing, measure and obtain the plate property index:
Density (g/cm 3) 1.26
Naturally contain rupture strength under the wet condition (MPa) 12
Anti-folding elastic modelling quantity (MPa) 3500
Vertical plane tensile strength (MPa) 0.60
Immersion 24h thickness swelling (%) 1.5.

Claims (10)

1. a cement-bonded wood chipboard is characterized in that, comprises the raw material of following weight distribution ratio:
Wood wool (over dry wood shavings) 15~35
High-calcium fly ass 15~45
Cement 30~55
2. a cement-bonded wood chipboard is characterized in that, comprises the raw material of following weight distribution ratio:
Wood wool (over dry wood shavings) 15~35
High-calcium fly ass 15~45
Cement 30~55
Sodium metasilicate 1~3
Calcium chloride 0.3~1.8
3. cement-bonded wood chipboard as claimed in claim 2 is characterized in that also comprising the auxiliary agent of 0.1~2 weight portion, and is at least a in this auxiliary agent selective chlorination sodium, gypsum, calcium hydroxide, sodium sulphate, lignosulphonates, the triethanolamine.
4. as claim 2 or 3 described cement-bonded wood chipboards, the content that it is characterized in that calcium oxide in the described high-calcium fly ass is 15%~35%.
5. as claim 2 or 3 described cement-bonded wood chipboards, it is characterized in that described wood wool is prepared from by fast growing wood, brush wood or shrub.
6. preparation method as cement-bonded wood chipboard as described in claim 2 or 3 is characterized in that comprising being prepared as follows step:
1) raw material is mixed, stir, mat formation into slab then, slab buttress pressurization locking;
2) the slab buttress is sent into the fog room maintenance;
3) slab send into steam-cured still carry out steam-cured, then the cooling;
4) sheet material is carried out drying.
7. the preparation method of cement-bonded wood chipboard as claimed in claim 6 is characterized in that adding in the step 1) entry when mixed material, and the ratio of the weight sum of the gross weight of water and high-calcium fly ass and cement is 0.45-0.55 in the control mixture: 1.
8. as the preparation method of claim 6 or 7 described cement-bonded wood chipboards, it is characterized in that step 2) in control described fog room maintenance curing temperature be 70~90 ℃, relative humidity 70~100%, curing time 8~12 hours.
9. as the preparation method of claim 6 or 7 described cement-bonded wood chipboards, it is characterized in that steam-cured 1.8~4 atmospheric pressure of steam-cured pressure of the described sheet material of control in the step 3), 8~16 hours steam-cured time.
10. as the preparation method of claim 6 or 7 described cement-bonded wood chipboards, it is characterized in that the temperature of the described drying of control in the step 4) is 60~75 ℃, make the moisture content of sheet material reach 6~12%.
CNA2007101213236A 2007-09-04 2007-09-04 Cement flakeboard and production process thereof Pending CN101117005A (en)

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Application Number Priority Date Filing Date Title
CNA2007101213236A CN101117005A (en) 2007-09-04 2007-09-04 Cement flakeboard and production process thereof

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Application Number Priority Date Filing Date Title
CNA2007101213236A CN101117005A (en) 2007-09-04 2007-09-04 Cement flakeboard and production process thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101885203A (en) * 2010-06-08 2010-11-17 宫安 Cement wood particle board and manufacturing method thereof
CN102514073A (en) * 2009-09-16 2012-06-27 廖树汉 Fire damper board produced by wheat straws, not combusting at temperature of thousand DEG C, not smoking and preserving heat as ceramic fiber
EP2724996A2 (en) 2012-10-25 2014-04-30 Centre d'Etudes et de Recherches de l'Industrie du Beton Manufacture Agro-sourced lightweight concrete and use thereof
CN104402270A (en) * 2014-12-01 2015-03-11 北京高能时代环境技术股份有限公司 High-calcium coal ash cement and preparation method thereof
CN105541265A (en) * 2016-01-20 2016-05-04 卓达新材料科技集团有限公司 Cement particle board and preparation method thereof
CN105599109A (en) * 2015-12-30 2016-05-25 卓达新材料科技集团有限公司 Cement-rice hull exterior wall decoration board and production method thereof
CN109265196A (en) * 2018-10-26 2019-01-25 安徽省中坤元新型建材有限公司 A kind of maintenance process of cement plate

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102514073A (en) * 2009-09-16 2012-06-27 廖树汉 Fire damper board produced by wheat straws, not combusting at temperature of thousand DEG C, not smoking and preserving heat as ceramic fiber
CN101885203A (en) * 2010-06-08 2010-11-17 宫安 Cement wood particle board and manufacturing method thereof
EP2724996A2 (en) 2012-10-25 2014-04-30 Centre d'Etudes et de Recherches de l'Industrie du Beton Manufacture Agro-sourced lightweight concrete and use thereof
FR2997394A1 (en) * 2012-10-25 2014-05-02 Ct D Etudes Et De Rech S De L Ind Du Beton Manufacture AGROSOURCE LIGHT CONCRETE AND ITS USE
EP2724996A3 (en) * 2012-10-25 2017-10-11 Centre d'Etudes et de Recherches de l'Industrie du Beton Manufacture Agro-sourced lightweight concrete and use thereof
CN104402270A (en) * 2014-12-01 2015-03-11 北京高能时代环境技术股份有限公司 High-calcium coal ash cement and preparation method thereof
CN104402270B (en) * 2014-12-01 2016-08-31 北京高能时代环境技术股份有限公司 A kind of high calcium fly-ash cement and preparation method thereof
CN105599109A (en) * 2015-12-30 2016-05-25 卓达新材料科技集团有限公司 Cement-rice hull exterior wall decoration board and production method thereof
CN105599109B (en) * 2015-12-30 2018-05-22 卓达新材料科技集团有限公司 A kind of cement rice husk decorative plate of outer wall and preparation method thereof
CN105541265A (en) * 2016-01-20 2016-05-04 卓达新材料科技集团有限公司 Cement particle board and preparation method thereof
CN109265196A (en) * 2018-10-26 2019-01-25 安徽省中坤元新型建材有限公司 A kind of maintenance process of cement plate

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