JP2000290059A - Wood cement board - Google Patents
Wood cement boardInfo
- Publication number
- JP2000290059A JP2000290059A JP9743499A JP9743499A JP2000290059A JP 2000290059 A JP2000290059 A JP 2000290059A JP 9743499 A JP9743499 A JP 9743499A JP 9743499 A JP9743499 A JP 9743499A JP 2000290059 A JP2000290059 A JP 2000290059A
- Authority
- JP
- Japan
- Prior art keywords
- weight ratio
- wood
- cement
- cement board
- range
- 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.)
- Withdrawn
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
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00198—Characterisation or quantities of the compositions or their ingredients expressed as mathematical formulae or equations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- 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)
- Panels For Use In Building Construction (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
(57)【要約】
【課題】 本発明は加圧加熱後オートクレーブ養生によ
って製造される木質セメント板の強度を向上させること
を課題とする。
【解決手段】 ポルトランドセメント、アルミナセメン
ト、半水石膏、およびシリカフュームを硬化性無機材料
として含み、木質材料を補強材として使用した木質セメ
ント板であって、該アルミナセメントは該硬化性無機材
料中に１〜５重量％の範囲で含有され、アルミナセメン
ト／半水石膏の重量比は０．５〜２．５の範囲に設定さ
れ、ポルトランドセメント／シリカフュームの重量比は
２．５〜５．５の範囲に設定され、該硬化性無機材料／
木質材料の重量比は１．５〜４．５重量比の範囲に設定
されていることによって、エトリンガイド含有量および
ケイ酸カルシウム水和物生成量が増大した木質セメント
板を提供する。(57) [Problem] To improve the strength of a wood cement board manufactured by autoclave curing after heating under pressure. SOLUTION: This is a wood cement board containing Portland cement, alumina cement, hemihydrate gypsum, and silica fume as a hardening inorganic material, and using a wood material as a reinforcing material, wherein the alumina cement is contained in the hardening inorganic material. The weight ratio of alumina cement / hemihydrate gypsum is set in the range of 0.5 to 2.5, and the weight ratio of Portland cement / silica fume is 2.5 to 5.5. The curable inorganic material /
By setting the weight ratio of the wood material in the range of 1.5 to 4.5 weight ratio, a wood cement board having an increased ettrine guide content and an increased amount of calcium silicate hydrate is provided.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、主として建築板として
使用される木質セメント板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood cement board mainly used as a building board.
【０００２】[0002]
【従来の技術】従来から、ポルトランドセメント、アル
ミナセメント、半水石膏、ケイ酸質粉末等の硬化性材料
を含み、木片等の木質材料を補強材として使用し、加圧
加熱硬化せしめられた木質セメント板が提供されている
（特開平１０−２３１１６１号）。上記木質セメント板
はアルミナセメントを含有しているから熱硬化性であ
り、またセメント成分にケイ酸質粉末が混合されている
ためセメントの硬化が充分に進行し、寸法安定性が改善
されている。2. Description of the Related Art Conventionally, wood materials containing hardening materials such as portland cement, alumina cement, hemihydrate gypsum, and siliceous powder, and using wood materials such as wood chips as a reinforcing material, and being hardened under pressure and heat. A cement board has been provided (JP-A-10-231161). The wood cement board is thermosetting because it contains alumina cement, and since the siliceous powder is mixed with the cement component, the hardening of the cement proceeds sufficiently, and the dimensional stability is improved. .
【０００３】[0003]
【発明が解決しようとする課題】しかし上記木質セメン
ト板にはアルミナセメントが硬化性無機材料中に９重量
％以上含まれているために、通常１５０℃以上の高温に
曝されるオートクレーブ養生において、硬化物中に生成
しているエトリンガイドが分解され、その結果強度が低
下すると云う問題点があった。However, since the wood cement board contains 9% by weight or more of alumina cement in the hardening inorganic material, the wood cement board is usually exposed to a high temperature of 150 ° C. or more. There has been a problem that the ettrine guide formed in the cured product is decomposed, resulting in a decrease in strength.
【０００４】[0004]
【課題を解決するための手段】本発明は上記課題を解決
するための手段として、ポルトランドセメント、アルミ
ナセメント、半水石膏、およびシリカフュームを硬化性
無機材料として含み、木質材料を補強材として使用した
木質セメント板であって、該アルミナセメントは該硬化
性無機材料中に１〜５重量％の範囲で含有され、アルミ
ナセメント／半水石膏の重量比は０．５〜２．５の範囲
に設定され、ポルトランドセメント／シリカフュームの
重量比は２．５〜５．５の範囲に設定され、該硬化性無
機材料／木質材料の重量比は１．５〜４．５重量比の範
囲に設定されており、加圧加熱後オートクレーブ養生に
よって硬化せしめられている木質セメント板を提供する
ものである。According to the present invention, as a means for solving the above problems, Portland cement, alumina cement, hemihydrate gypsum, and silica fume are used as a hardening inorganic material, and a woody material is used as a reinforcing material. A wood cement board, wherein the alumina cement is contained in the curable inorganic material in a range of 1 to 5% by weight, and a weight ratio of alumina cement / hemihydrate gypsum is set in a range of 0.5 to 2.5. The weight ratio of Portland cement / silica fume is set in the range of 2.5 to 5.5, and the weight ratio of the hardenable inorganic material / wood material is set in the range of 1.5 to 4.5. The object of the present invention is to provide a wood cement board hardened by autoclave curing after heating under pressure.
【０００５】[0005]
【作用】本発明の木質セメント板は、ポルトランドセメ
ントにアルミナセメントが添加されているから、熱硬化
性であり生産性が高い。そしてシリカフュームが添加さ
れているから、該シリカフュームとセメントからの水酸
化カルシウムとの反応が円滑に進み、セメントの硬化が
充分進行し、寸法安定性が改善される。更にアルミナセ
メントは硬化性無機材料中に１〜５重量％の範囲で含ま
れているから高温のオートクレーブ養生を行なったと
き、嵩高い針状結晶のエトリンガイドは分解されるがそ
の絶対量は少ないので、エトリンガイドが分解しても、
板の内部が構造的に粗になることはなく緻密な構造であ
り、ケイ酸カルシウム反応も進み高い強度が発現する。The wood cement board of the present invention is thermosetting and has high productivity because alumina cement is added to Portland cement. Since silica fume is added, the reaction between the silica fume and calcium hydroxide from the cement proceeds smoothly, the cement hardens sufficiently, and the dimensional stability is improved. Furthermore, since the alumina cement is contained in the hardening inorganic material in the range of 1 to 5% by weight, when the autoclave curing is performed at a high temperature, the ettrine guide of the bulky needle-shaped crystal is decomposed, but its absolute amount is As it is small, even if the ettrine guide disassembles,
The inside of the plate has a dense structure without being structurally rough, and the calcium silicate reaction proceeds to develop high strength.
【０００６】[0006]
【発明の実施の形態】本発明を以下に詳細に説明する。
本発明に使用する硬化性無機材料はポルトランドセメン
ト（ＰＣ）、アルミナセメント（ＡＬＣＥ）、半水石膏
（ＣＳ）およびシリカフューム（ＳＦ）であり、ＡＬＣ
Ｅは該硬化性無機材料（ＩＭ）中に１〜５重量％の範囲
で含有され、ＡＬＣＥ／ＣＳの重量比は０．５〜２．５
の範囲に設定され、ＰＣ／ＳＦの重量比は２．５〜５．
５の範囲に設定される。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below.
The curable inorganic materials used in the present invention are Portland cement (PC), alumina cement (ALCE), gypsum hemihydrate (CS) and silica fume (SF), and ALC
E is contained in the curable inorganic material (IM) in a range of 1 to 5% by weight, and the weight ratio of ALCE / CS is 0.5 to 2.5.
And the weight ratio of PC / SF is 2.5-5.
5 is set.
【０００７】ＡＬＣＥの量が１重量％を下回ると、エト
リンガイド（ＥＴ）およびケイ酸カルシウム水和物（Ｃ
ＳＨ）の生成量が充分でなく、５重量％を上回ると加圧
加熱時にＥＴが非常に多く生成して初期強度はでるが、
オートクレーブ養生の高温によって嵩高い針状結晶のＥ
Ｔが分解される量も増加し、板の内部で構造的に粗にな
る部分が多くあるので製品の緻密性が低下し、ケイ酸カ
ルシウム反応も進みにくくなる。またＡＬＣＥ／ＣＳの
重量比が０．５を下回ると、ＥＴおよびＣＳＨの生成量
が少なくなり、２．５を上回っても逆にＥＴおよびＣＳ
Ｈの生成量が低下して来る。更にＰＣ／ＳＦの重量比が
２．５を下回るとＣＳＨの生成量が充分でなく、５．５
を上回るとＣＳＨの生成量が低下傾向になる。When the amount of ALCE is less than 1% by weight, etrin guide (ET) and calcium silicate hydrate (C
If the amount of SH) is not sufficient, and if it exceeds 5% by weight, ET is generated very much during heating under pressure and the initial strength is increased.
E of needle-like crystals bulky due to high temperature of autoclave curing
The amount by which T is decomposed also increases, and since there are many structurally rough portions inside the plate, the compactness of the product decreases, and the calcium silicate reaction hardly proceeds. When the weight ratio of ALCE / CS is less than 0.5, the amount of ET and CSH produced is reduced.
The amount of generated H is decreasing. Further, when the weight ratio of PC / SF is less than 2.5, the amount of CSH produced is not sufficient, and 5.5.
If it exceeds, the amount of CSH generated tends to decrease.
【０００８】本発明に使用する木質材料（ＷＭ）として
は、例えば木片、木粉、木毛、木質繊維、木質パルプ、
分枝および／または弯曲および／または折曲させること
によって嵩高くされた木質繊維束等が例示され、ＩＭ／
ＷＭの重量比は１．５〜４．５の範囲に設定される。該
重量比が１．５を下回るとＷＭの補強効果が充分でなく
なり、４．５を上回ると難燃性が低下する。上記原料以
外、本発明では例えば水ガラス、マイカ、撥水剤、セメ
ント硬化促進剤等が添加されてもよい。望ましい添加剤
は水ガラスであり、該水ガラスは硬化促進剤として作用
し、通常ＰＣに対して１〜３重量％添加される。The woody material (WM) used in the present invention includes, for example, wood chips, wood flour, wood wool, wood fiber, wood pulp,
Examples include wood fiber bundles that have been made bulky by branching and / or bending and / or bending.
The weight ratio of WM is set in the range of 1.5 to 4.5. If the weight ratio is less than 1.5, the reinforcing effect of WM is not sufficient, and if it exceeds 4.5, the flame retardancy is reduced. In addition to the above-mentioned raw materials, in the present invention, for example, water glass, mica, a water repellent, a cement hardening accelerator, and the like may be added. A desirable additive is water glass, which acts as a hardening accelerator and is usually added in an amount of 1 to 3% by weight based on PC.
【０００９】本発明の木質セメント板を製造するには、
型板上に上記原料の混合物を散布してマットとし、該マ
ットを加熱加圧した後オートクレーブ養生する。上記加
熱加圧条件は通常７０〜８０℃、１０〜１５分、上記オ
ートクレーブ養生条件は１５０〜１８０℃で５〜１０時
間である。上記加熱加圧およびオートクレーブ養生にお
いて、原料混合物中にはＥＴおよびＣＳＨが生成して硬
化するが、加熱加圧工程では主としてＥＴ生成によって
強度が発現し、オートクレーブ養生では、高温によって
ＥＴは分解するがＣＳＨの生成によって強度が発現す
る。そして上記した組成範囲が最適範囲で、オートクレ
ーブ後の強度も最高の値を示す。To manufacture the wood cement board of the present invention,
The mixture of the above raw materials is sprayed on a template to form a mat, which is heated and pressurized and then autoclaved. The heating and pressurizing conditions are usually 70 to 80 ° C for 10 to 15 minutes, and the autoclave curing conditions are 150 to 180 ° C for 5 to 10 hours. In the heating and pressurizing and the autoclave curing, ET and CSH are generated and hardened in the raw material mixture. However, in the heating and pressurizing step, strength is developed mainly by ET generation, and in the autoclave curing, ET is decomposed by high temperature. Strength is developed by the generation of CSH. The above composition range is the optimum range, and the strength after autoclaving also shows the highest value.
【００１０】[0010]
【実施例１】〔ＡＬＣＥ添加量〕ＡＬＣＥ／ＣＳ＝１．
５（重量比）、ＰＣ／ＳＦ＝３．５（重量比）に設定
し、かつ水ガラスを２重量％／ＰＣ添加し、ＩＭ／ＷＭ
＝３．５（重量比）に設定し、そしてＡＬＣＥの添加量
を種々に変えた原料混合物を水／固形分＝０．４（重量
比）で混合し、型枠中に散布してマットをフォーミング
し、該マットを７５℃、１２分、圧力３０kgf/cm2 で加
圧加熱（ＨＰ）し、その後１６５℃、７時間のオートク
レーブ養生（ＡＣ）を行なって木質セメント板試料を作
成した（寸法３０×３０×１．０（cm），目標密度１．
０５g/cm3 ）。各試料について、ＨＰ後およびＡＣ後の
曲げ強度（ＭＯＲ）を測定した。その結果は図１に示さ
れる。Example 1 [ALCE addition amount] ALCE / CS = 1.
5 (weight ratio), PC / SF = 3.5 (weight ratio), water glass was added at 2% by weight / PC, and IM / WM was added.
= 3.5 (weight ratio), and the raw material mixture in which the addition amount of ALCE was variously changed was mixed at a water / solid content of 0.4 (weight ratio), and was dispersed in a mold to form a mat. The mat was pressurized and heated (HP) at 75 ° C. for 12 minutes at a pressure of 30 kgf / cm 2 , and then subjected to autoclave curing (AC) at 165 ° C. for 7 hours to prepare a wood cement board sample (dimensions). 30 × 30 × 1.0 (cm), target density 1.
05 g / cm 3 ). The bending strength (MOR) after HP and after AC was measured for each sample. The result is shown in FIG.
【００１１】図１によれば、ＨＰ後のＭＯＲ（白丸）は
ＡＬＣＥの添加量の増加につれて漸増するが、一方ＡＣ
後ではＭＯＲ（黒丸）はＡＬＣＥの添加量が５重量％／
ＩＭを超えると顕著に低下し、１５重量％ではＨＰ後の
ＭＯＲを下回るようになる。これはＥＴがＡＬＣＥの量
の増加によって生成量が増大するが、ＡＣにおける高温
によって分解される量も増加し、その結果、板の内部が
構造的に粗になり板の緻密性がなくなって、ケイ酸カル
シウム反応も進みにくくなるためであると考えられる。According to FIG. 1, the MOR (open circle) after HP gradually increases as the amount of added ALCE increases, while the MOR (open circle) increases.
Later, MOR (black circle) indicates that the addition amount of ALCE is 5% by weight /
When it exceeds IM, it significantly decreases, and at 15% by weight, it becomes lower than the MOR after HP. This means that the amount of ET produced increases with an increase in the amount of ALCE, but the amount decomposed by the high temperature in AC also increases, and as a result, the inside of the plate becomes structurally coarse and the plate becomes less dense, It is considered that this is because the calcium silicate reaction hardly proceeds.
【００１２】[0012]
【実施例２】〔ＡＬＣＥ／ＣＳ〕ＡＬＣＥ添加量５重量
％／ＩＭ，ＰＣ／ＳＦ＝４．０（重量比）に設定し、か
つ水ガラスを２重量％／ＰＣ添加し、ＩＭ／ＷＭ＝３．
５（重量比）に設定し、そしてＡＬＣＥ／ＣＳを種々に
変えた原料混合物を使用して、実施例１と同様にして木
質セメント板試料を作成し、各試料について、ＨＰ後お
よびＡＣ後のＭＯＲを測定した。その結果は図２に示さ
れる。Example 2 [ALCE / CS] ALCE addition amount was set to 5% by weight / IM, PC / SF = 4.0 (weight ratio), water glass was added at 2% by weight / PC, and IM / WM = 3.
Wood cement board samples were prepared in the same manner as in Example 1 using a raw material mixture set to 5 (weight ratio) and variously changed ALCE / CS, and each sample was subjected to post-HP and post-AC. The MOR was measured. The result is shown in FIG.
【００１３】図２によれば、ＭＯＲはＨＰ後（白丸）、
ＡＣ後（黒丸）共にＡＬＣＥ／ＣＳ０．５〜２．５重量
比の範囲で最高になり、２．５重量比を超えると顕著に
低下する。これはＡＬＣＥ／ＣＳ＝２．５重量比を超え
ると、ＥＴ，ＣＳＨ共に生成量が少なくなって来るため
と思われる。According to FIG. 2, MOR is after HP (open circle),
After AC (black circles), ALCE / CS reaches the maximum in the range of 0.5 to 2.5 weight ratio, and significantly exceeds 2.5 weight ratio. This is presumably because when the weight ratio exceeds ALCE / CS = 2.5, the amount of production of both ET and CSH decreases.
【００１４】[0014]
【実施例３】〔ＰＣ／ＳＦ〕ＡＬＣＥ添加量５重量％／
ＩＭ，ＡＬＣＥ／ＣＳ＝１．５重量比に設定し、かつ水
ガラスを２重量％／ＰＣ添加し、ＩＭ／ＷＭ＝３．５
（重量比）に設定し、そしてＰＣ／ＳＦを種々に変えた
原料混合物を使用して、実施例１と同様にして木質セメ
ント板試料を作成し、各試料について、ＨＰ後およびＡ
Ｃ後のＭＯＲを測定した。その結果は図３に示される。Example 3 [PC / SF] ALCE added amount 5% by weight /
IM, ALCE / CS = 1.5 weight ratio, water glass added at 2% by weight / PC, IM / WM = 3.5
(Weight ratio), and wood cement board samples were prepared in the same manner as in Example 1 by using a raw material mixture in which PC / SF was variously changed.
The MOR after C was measured. The result is shown in FIG.
【００１５】図３によれば、ＨＰ後（白丸）のＭＯＲは
ＰＣ／ＳＦ重量比で余り変化しないが、ＡＣ後（黒丸）
のＭＯＲはＰＣ／ＳＦ２．５〜５．５（重量比）の範囲
で最高になり、５．５重量比を超えると低下する。これ
はＰＣ／ＳＦ重量比によってＣＳＨ生成量は余り変化し
ないが、ＥＴ生成量はＰＣ／ＳＦ重量比２．５〜５．５
の範囲で最高になり、５．５を超えると減って来るため
であると考えられる。According to FIG. 3, the MOR after HP (open circles) does not change much with the PC / SF weight ratio, but after AC (black circles).
Has a maximum in the range of PC / SF 2.5 to 5.5 (weight ratio), and decreases when the weight ratio exceeds 5.5. This means that the amount of CSH produced does not change much depending on the PC / SF weight ratio, but the amount of ET produced is 2.5 to 5.5 in terms of the PC / SF weight ratio.
Is considered to be the highest in the range, and to decrease when it exceeds 5.5.
【００１６】[0016]
【発明の効果】本発明によれば、加圧加熱後オートクレ
ーブ養生をすることによって、強度の非常に高い木質セ
メント板が得られる。According to the present invention, a wood cement board having extremely high strength can be obtained by autoclaving after heating under pressure.
【図１】ＡＬＣＥ添加量とＭＯＲとの関係を示すグラフ
（白丸 ＨＰ後 黒丸ＡＣ後）FIG. 1 is a graph showing the relationship between the amount of ALCE added and MOR (white circles after HP, black circles after AC)
【図２】ＡＬＣＥ／ＣＳとＭＯＲとの関係を示すグラフ
（白丸 ＨＰ後 黒丸ＡＣ後）FIG. 2 is a graph showing the relationship between ALCE / CS and MOR (white circles after HP, black circles after AC)
【図３】ＰＣ／ＳＦとＭＯＲとの関係を示すグラフ（白
丸 ＨＰ後 黒丸ＡＣ後）FIG. 3 is a graph showing the relationship between PC / SF and MOR (white circles after HP, black circles after AC)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） //(Ｃ０４Ｂ 28/18 7:02 7:32 18:26 18:14） 111:20 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // (C04B 28/18 7:02 7:32 18:26 18:14) 111: 20
Claims (1)
ト、半水石膏、およびシリカフュームを硬化性無機材料
として含み、木質材料を補強材として使用した木質セメ
ント板であって、該アルミナセメントは該硬化性無機材
料中に１〜５重量％の範囲で含有され、アルミナセメン
ト／半水石膏の重量比は０．５〜２．５の範囲に設定さ
れ、ポルトランドセメント／シリカフュームの重量比は
２．５〜５．５の範囲に設定され、該硬化性無機材料／
木質材料の重量比は１．５〜４．５重量比の範囲に設定
されており、加圧加熱後オートクレーブ養生によって硬
化せしめられていることを特徴とする木質セメント板1. A wood cement board containing portland cement, alumina cement, hemihydrate gypsum, and silica fume as a hardening inorganic material, and using a wood material as a reinforcing material, wherein the alumina cement is contained in the hardening inorganic material. The weight ratio of alumina cement / hemihydrate gypsum is set in the range of 0.5 to 2.5, and the weight ratio of Portland cement / silica fume is 2.5 to 5.5. And the curable inorganic material /
The wood cement board is characterized in that the weight ratio of the wood material is set in the range of 1.5 to 4.5 weight ratio, and is hardened by autoclaving after heating under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9743499A JP2000290059A (en) | 1999-04-05 | 1999-04-05 | Wood cement board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9743499A JP2000290059A (en) | 1999-04-05 | 1999-04-05 | Wood cement board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000290059A true JP2000290059A (en) | 2000-10-17 |
Family
ID=14192282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9743499A Withdrawn JP2000290059A (en) | 1999-04-05 | 1999-04-05 | Wood cement board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000290059A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007176724A (en) * | 2005-12-27 | 2007-07-12 | Nichiha Corp | Wood chip cement board and its manufacturing method |
| RU2466952C1 (en) * | 2011-07-06 | 2012-11-20 | Юлия Алексеевна Щепочкина | Cement wood mixture |
| EP2594542A1 (en) * | 2011-11-16 | 2013-05-22 | Secil-Companhia Geral de Cal e Cimento S.A. | Cementitious binders and wood particles-based incombustible coloured composite panel with structural high performance |
-
1999
- 1999-04-05 JP JP9743499A patent/JP2000290059A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007176724A (en) * | 2005-12-27 | 2007-07-12 | Nichiha Corp | Wood chip cement board and its manufacturing method |
| RU2466952C1 (en) * | 2011-07-06 | 2012-11-20 | Юлия Алексеевна Щепочкина | Cement wood mixture |
| EP2594542A1 (en) * | 2011-11-16 | 2013-05-22 | Secil-Companhia Geral de Cal e Cimento S.A. | Cementitious binders and wood particles-based incombustible coloured composite panel with structural high performance |
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