JP2002154857A - Composition for cemented wood board and production process of cemented wood board - Google Patents
Composition for cemented wood board and production process of cemented wood boardInfo
- Publication number
- JP2002154857A JP2002154857A JP2000344286A JP2000344286A JP2002154857A JP 2002154857 A JP2002154857 A JP 2002154857A JP 2000344286 A JP2000344286 A JP 2000344286A JP 2000344286 A JP2000344286 A JP 2000344286A JP 2002154857 A JP2002154857 A JP 2002154857A
- Authority
- JP
- Japan
- Prior art keywords
- composition
- wood
- cement
- wood board
- weight
- 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.)
- Granted
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、外壁等の建築材料
として用いられる木質セメント板用の組成物、及びそれ
を用いた木質セメント板の製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition for a wood cement board used as a building material for outer walls and the like, and a method for producing a wood cement board using the same.
【０００２】[0002]
【従来の技術】従来、建築材料、例えば、木質セメント
板は、セメント硬貨体の持つ防火性や耐水性と木片の持
つ加工性や釘打ち性の両方の特性を合わせ持つことか
ら、主に建物の外壁等に用いられている。この木片セメ
ントを建物の外壁等に用いる場合、より軽量化を図るた
め軽量骨材を混入する方法が取られている。しかしなが
ら木片セメント板をプレス成形法で製造する場合、プレ
ス工程により該軽量骨材が破壊してしまい、所望の軽量
化が図れないといった問題があった。そこで特開平５−
１９４００４号公報には軽量骨材として使用する木片の
厚みよりも粒径の小さい無機質発泡体を混入することに
よりプレス中の圧力を木片が緩和し、無機質発泡体を破
壊しにくくする方法が開示されている。2. Description of the Related Art Conventionally, building materials, such as wood cement boards, are mainly used for building materials because they have both the fire resistance and water resistance of cement coins and the workability and nailing properties of wood chips. It is used for the outer wall etc. When this wood chip cement is used for an outer wall of a building or the like, a method of mixing lightweight aggregate has been adopted in order to further reduce the weight. However, when a wood chip cement board is manufactured by a press molding method, there is a problem that the lightweight aggregate is broken by a pressing process, and a desired weight reduction cannot be achieved. Therefore, Japanese Patent Application Laid-Open
Japanese Patent Application Publication No. 194004 discloses a method in which an inorganic foam having a particle size smaller than the thickness of a wood piece used as a lightweight aggregate is mixed to relieve the pressure during the pressing of the wood piece so that the inorganic foam is hardly broken. ing.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、特開平
５−１９４００４号公報で開示されている方法を用いた
場合、軽量骨材の残存率を向上させることは出来るもの
の、高圧でプレスした場合は破壊食い止めることは困難
であり、木質セメント板の軽量化効果の低下は否めな
い。However, when the method disclosed in Japanese Patent Application Laid-Open No. Hei 5-194004 is used, the residual rate of the lightweight aggregate can be improved, but when pressed at a high pressure, the aggregate is destroyed. It is difficult to stop it, and the weight reduction effect of the wood cement board cannot be denied.
【０００４】本発明は、このような問題点に鑑みてなさ
れたものであり、高圧プレス成形で製造される場合であ
っても、軽量化が図れる木質セメント板用組成物およ
び、それを用いた木質セメント板の製造方法を提供する
ものである。[0004] The present invention has been made in view of such problems, and even when manufactured by high-pressure press molding, a composition for a wood cement board capable of achieving weight reduction, and using the same. A method for producing a wood cement board is provided.
【０００５】[0005]
【課題を解決するための手段】請求項１記載の発明は、
セメント、木片、及び球形状無機質中空粒子からなる木
質セメント板用組成物であって、前記球形状無機質中空
粒子は以下の特性を有し、中空率は５０〜９０％、
隔壁厚みは２〜１０μｍ、及び粒子を構成する成分中
のＳｉＯ2 含有率が、５０〜７０重量％であり且つ、上
記木片セメント板用組成物中に占める前記球形状無機質
中空粒子の割合が１０〜５０体積％である木質セメント
板用組成物である。According to the first aspect of the present invention,
A composition for a wood cement board comprising cement, wood chips, and spherical inorganic hollow particles, wherein the spherical inorganic hollow particles have the following characteristics, and have a hollow ratio of 50 to 90%;
The partition wall thickness is 2 to 10 μm, the content of SiO 2 in the components constituting the particles is 50 to 70% by weight, and the ratio of the spherical inorganic hollow particles in the composition for the wood chip cement board is 10%. It is a composition for a wood cement board that is ５０50% by volume.
【０００６】上記セメントは、普通ポルトランドセメン
ト、早強ポルトランドセメント等のポルトランドセメン
トを主成分とするものが使用出来る。成形工程にホット
プレス等の加熱工程を使用する場合には、硬化時間を短
縮出来るので、ポルトランドセメントに熱硬化成分を添
加して、熱硬化性セメントとすることも出来る。[0006] As the above-mentioned cement, those containing Portland cement as a main component such as ordinary Portland cement and early-strength Portland cement can be used. When a heating step such as a hot press is used in the molding step, the curing time can be shortened. Therefore, a thermosetting component can be obtained by adding a thermosetting component to Portland cement.
【０００７】上記熱硬化成分としては、例えば、アルミ
ナセメント、無水石膏および半水石膏から選ばれる成分
が、単独または２種以上混合状態にて主成分として使用
することが出来る。つまりポルトランドセメントとこれ
ら成分から、エトリンガイト（３ＣａＯ・Ａｌ2 Ｏ3 ・
３ＣａＳＯ4 ・３２Ｈ2 Ｏ）が生成してセメントを急速
に硬化させることが出来る。As the thermosetting component, for example, a component selected from alumina cement, anhydrous gypsum and gypsum hemihydrate can be used as a main component alone or in a mixture of two or more. In other words, from Portland cement and these components, ettringite (3CaO.Al 2 O 3.
3CaSO 4 .32H 2 O) can be formed to rapidly cure the cement.
【０００８】上記木片の種類は特に限定されないが、新
木材および建築廃木材等から作成された木チップを細分
化した木片が好適に使用出来、樹種としては例えば、
杉、檜、松、栂、さわら、樫、なら、かば、ブナ、オー
ク、ラワン、ひば、栗、けやき、椎、柳、竹等の材料が
使用出来る。[0008] The type of the above-mentioned wood chips is not particularly limited, but wood chips obtained by subdividing wood chips made from new wood and waste wood for construction can be suitably used.
Materials such as cedar, cypress, pine, toga, straw, oak, nara, buna, beech, oak, lauan, hiba, chestnut, zelkova, shii, willow and bamboo can be used.
【０００９】上記木片の形状は、用途や強度等、必要に
応じて選択されるが、長さ６０ｍｍ以下、幅２０ｍｍ以
下、厚さ２ｍｍ以下のものが好ましく、目開き１．６８
ｍｍ以下の篩で分球された通過分を７０重量％以上含有
するものが特に好ましい。[0009] The shape of the above-mentioned wood piece is selected as required, such as the purpose and strength, but it is preferably 60 mm or less in length, 20 mm or less in width and 2 mm or less in thickness, and the opening is 1.68.
Particularly preferred is one containing 70% by weight or more of the passing amount sieved with a sieve of not more than mm.
【００１０】上記木片を製造する方法としては公知の方
法が使用出来、例えば、プレス、回転ロールによる圧
搾、スリッターや切断機による切断等の方法が挙げられ
る。As a method for producing the above-mentioned wood piece, a known method can be used, and examples thereof include a method of pressing with a press or a rotating roll, and a method of cutting with a slitter or a cutting machine.
【００１１】上記木片の配合割合は、上記セメント１０
０重量部に対して、５〜２００重量部が好ましい。上記
木片が５重量部未満の場合には、補強効果が得られず、
強度不足となると共に比重が大きくなり、木質セメント
板の軽量効果が低下する。また、木片が２００重量部を
超えると、セメントによるバインダー効果が小さくな
り、木質セメント板としての強度が低下する恐れがあ
る。[0011] The mixing ratio of the above wood chips is 10
The amount is preferably 5 to 200 parts by weight with respect to 0 parts by weight. When the wood piece is less than 5 parts by weight, the reinforcing effect cannot be obtained,
As the strength becomes insufficient, the specific gravity increases, and the light weight effect of the wood cement board decreases. On the other hand, when the amount of the wood chips exceeds 200 parts by weight, the binder effect of the cement is reduced, and the strength of the wood cement board may be reduced.
【００１２】本発明の木質セメント板用組成物には、以
下の特定された性質を有する球形状無機質中空粒子を使
用する。The composition for a wood cement board of the present invention uses spherical inorganic hollow particles having the following specified properties.
【００１３】上記球形状無機質中空粒子は、中空率が５
０〜９０％である。中空率が５０％未満になると木質セ
メント板としての軽量化効果が低下し、９０％を超える
と中空粒子がプレス成形工程で潰れ易くなる。尚、上記
中空率とは、中心部に空洞部を形成している粒子におい
て粒子体積に占める前記空洞部の体積比率と定義され
る。The above-mentioned spherical inorganic hollow particles have a hollow ratio of 5
0 to 90%. When the hollow ratio is less than 50%, the effect of reducing the weight of the wood cement board is reduced, and when it exceeds 90%, the hollow particles are easily crushed in the press molding step. Note that the hollow ratio is defined as a volume ratio of the hollow portion to the particle volume of particles forming a hollow portion in the center.
【００１４】又、上記球形状無機質中空粒子を構成する
成分中のＳｉＯ2 含有率は、５０〜７０重量％の範囲に
限定される。ＳｉＯ2 含有率が５０重量％未満の場合に
は、圧縮強度が低下しプレス成型時に破壊し易くなり、
７０重量％を超えると、木質セメント板としての軽量化
効果が低下する。The content of SiO 2 in the components constituting the spherical inorganic hollow particles is limited to the range of 50 to 70% by weight. If the SiO 2 content is less than 50% by weight, the compressive strength is reduced, and it is easy to break during press molding,
If it exceeds 70% by weight, the effect of reducing the weight of the wood cement board is reduced.
【００１５】又、上記球形状無機質中空粒子は、隔壁厚
みが２〜１０μｍの範囲である。上記理由と同様に隔壁
厚みが２μｍ未満になるとプレス成形工程で潰れ易くな
り、１０μｍを超えると軽量化効果が不足するからであ
る。The spherical inorganic hollow particles have a partition wall thickness of 2 to 10 μm. As in the above reason, if the partition wall thickness is less than 2 μm, it tends to be crushed in the press molding step, and if it exceeds 10 μm, the effect of reducing the weight is insufficient.
【００１６】上記球形状無機質中空粒子の上記木片セメ
ント板用組成物中に占める割合は、１０〜５０体積％で
ある。１０体積％未満になるとプレス成形時にセメント
混合物に対してのベアリング効果が発現しにくくなり中
空粒子の分散性が低下する。又、５０体積％を超えると
比重が大きくなり軽量化効果が低下する。ここで、体積
％とは、セメント、木片、及び球形状無機質中空粒子の
合計体積中に占める球形状無機質中空粒子の体積％と定
義する。The proportion of the spherical inorganic hollow particles in the composition for a wood chip cement board is 10 to 50% by volume. When the content is less than 10% by volume, the bearing effect on the cement mixture is hardly exhibited during press molding, and the dispersibility of the hollow particles is reduced. On the other hand, if it exceeds 50% by volume, the specific gravity increases, and the effect of reducing the weight decreases. Here, the volume% is defined as the volume% of the spherical inorganic hollow particles in the total volume of the cement, the wood chips, and the spherical inorganic hollow particles.
【００１７】上記の条件を満たす球形状無機質中空粒子
としては、フライアッシュバルーン、パーライト等が挙
げられるが、具体的には、ブルーサークルアッシュ社製
の「ポゾスフィアーズ」、日本パーライト社製の「Ｔ−
２０」、太平洋セメント社製の「Ｅ−スフィアーズ」等
が市販されている。Examples of the spherical inorganic hollow particles satisfying the above conditions include fly ash balloons and pearlite. Specifically, “Pozospheres” manufactured by Blue Circle Ash and “Pozospheres” manufactured by Nippon Perlite Co., Ltd. T-
20 "and" E-Spheres "manufactured by Taiheiyo Cement Corporation are commercially available.
【００１８】本発明のセメント板用組成物には、上記セ
メント成分以外にも、珪砂、フライアッシュ、マイカ、
珪ソウ土、シリカヒューム、高炉スラグ等の充填材が添
加しても良い。The composition for a cement board of the present invention contains silica sand, fly ash, mica,
Fillers such as silica sand, silica fume, and blast furnace slag may be added.
【００１９】上記セメント板用組成物は、水と混合して
セメント混合物とするが、水の配合割合はセメント１０
０重量部に対して、水３０〜１００重量部が好ましい。
水が３０重量部未満の場合には、セメントの水和反応が
不十分となり強度低下を引き起こす。又、１００重量部
を超えると水和反応に使われなかった水が空隙として硬
化体内に残存し、得られる木質セメント板が不均質とな
り強度が低下する。The above composition for a cement plate is mixed with water to form a cement mixture.
Water is preferably 30 to 100 parts by weight with respect to 0 parts by weight.
If the amount of water is less than 30 parts by weight, the hydration reaction of the cement becomes insufficient and the strength decreases. On the other hand, if it exceeds 100 parts by weight, water not used for the hydration reaction remains in the hardened body as voids, and the resulting wood cement board becomes inhomogeneous, resulting in reduced strength.
【００２０】請求項２記載の発明は、上記木質セメント
板用組成物と水からなるセメント混合物を、型枠上に展
開し、５〜２０ＭＰａの圧力でプレス成形することを特
徴とする木質セメント板の製造方法である。According to a second aspect of the present invention, a cement mixture comprising the composition for wood cement board and water is spread on a mold and press-molded at a pressure of 5 to 20 MPa. It is a manufacturing method of.
【００２１】上記セメント混合物へのプレス圧力が５Ｍ
Ｐａ未満の場合は、緻密な木質セメント板が得られな
い。又、２０ＭＰａを超えてもそれ以上の緻密化は得ら
れない。The pressing pressure on the cement mixture is 5M
If it is less than Pa, a dense wood cement board cannot be obtained. Further, even if it exceeds 20 MPa, further densification cannot be obtained.
【００２２】又、セメントに熱硬化性セメントを使用し
た場合、加熱温度は、７０〜１００℃が好ましい。When a thermosetting cement is used as the cement, the heating temperature is preferably from 70 to 100 ° C.
【００２３】（作 用）本発明のセメント組成物中に
は、上記のような特定の性質を有する球形状無機質中空
粒子が分散されて存在するので、水と混合してセメント
混合物とした場合、プレス成型時にベアリング効果を発
現し、流動性を高めると共にプレス圧力の偏在化をなく
し、中空粒子が破壊に至る圧力を受けにくくし、木質セ
メント板の軽量化が効率的に図れる。(Operation) In the cement composition of the present invention, spherical inorganic hollow particles having the above-mentioned specific properties are present in a dispersed state. A bearing effect is exerted during press molding, which enhances fluidity, eliminates uneven distribution of press pressure, makes it difficult for hollow particles to receive pressure that causes breakage, and can efficiently reduce the weight of a wood cement board.
【００２４】又、高圧プレスをかけた場合であっても上
記のような特定の性質を有する球形状無機質中空粒子を
用いることにより圧縮強度に対して強く、プレス圧力に
より中空粒子が破壊することはなく、軽量且つ高強度の
木質セメント板を提供することが出来る。Even when a high-pressure press is applied, the use of the spherical inorganic hollow particles having the specific properties as described above has a strong compressive strength, and the hollow particles are not broken by the press pressure. Thus, a lightweight and high-strength wood cement board can be provided.
【００２５】[0025]
【発明の実施の形態】以下、本発明の詳細を実施例、及
び比較例で説明する。表１に示したセメント組成物の各
材料を、水と共にヘンシェルミキサーで混合してセメン
ト混合物とし、このセメント混合物を金属型上に散布堆
積させ、表２に示した圧力で９０℃加熱プレスした後、
９０℃、１時間、乾燥させて厚み１２ｍｍの木質セメン
ト板を得た。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to examples and comparative examples. Each material of the cement composition shown in Table 1 was mixed with water using a Henschel mixer to form a cement mixture. The cement mixture was sprayed and deposited on a metal mold, and heated and pressed at 90 ° C. under the pressure shown in Table 2. ,
It was dried at 90 ° C. for 1 hour to obtain a wood cement board having a thickness of 12 mm.
【００２６】セメントとしては、早強ポルトランドセメ
ント（秩父小野田社製）７１．２重量部、アルミナセメ
ント（商品名「デンカ２号」、電気化学社製）１４．４
重量部、焼石膏（アラド工業社製）８．６重量部、消石
灰（駒形石灰工業社製）５．８重量部を混合して得られ
た、熱硬化性セメントを使用した。As cement, 71.2 parts by weight of early strength Portland cement (made by Chichibu Onoda) and alumina cement (trade name "DENKA No. 2", manufactured by Denki Kagaku) 14.4.
A thermosetting cement obtained by mixing 8.6 parts by weight of calcined gypsum (manufactured by Arad Kogyo Co., Ltd.) and 5.8 parts by weight of slaked lime (manufactured by Komagata Lime Industry Co., Ltd.) was used.
【００２７】球形状無機中空粒子としては、表２に示し
た各中空率、隔壁、及びＳｉＯ2 含有率を有するフライ
アッシュバルーン（商品名「ポゾスフィアーズ」、ブル
ーサークルアッシュ社製）、パーライト（商品名「Ｔ−
２０」、日本パーライト社製）を使用した。Examples of the spherical inorganic hollow particles include fly ash balloons (trade name “Pozospheres”, manufactured by Blue Circle Ash) having the respective hollow ratios, partition walls, and SiO 2 contents shown in Table 2, and perlite ( Product name "T-
20 ", manufactured by Nippon Perlite Co., Ltd.).
【００２８】木片は、檜、杉が混合された木材チップ
を、パールマン社のリング型ハンマーミルで切削したも
のを使用した。The wood chips were obtained by cutting wood chips in which cypress and cedar were mixed by a ring-type hammer mill manufactured by Pearlman.
【００２９】[0029]
【表１】 [Table 1]
【００３０】[0030]
【表２】 [Table 2]
【００３１】表２から明らかなように、本発明の木質セ
メント板（実施例１〜４）は、１０ＭＰａ以上の高圧プ
レス条件であっても軽量であると共に、曲げ強度も１０
ＭＰａ以上を有するの木質セメント板が得られることが
分かった。尚、比較例１は、無機質中空粒子の含有率が
低いので軽量効果が得られなかった。比較例２は、軽量
化は図れたものの曲げ強度は７ＭＰａ程度しか発現され
なかった。比較例３は、無機質中空粒子の隔壁が薄過ぎ
るため高圧プレスには耐えられず軽量効果、強度共に悪
い値であった。As is clear from Table 2, the wood cement board of the present invention (Examples 1 to 4) is lightweight even under high pressure pressing conditions of 10 MPa or more and has a bending strength of 10 MPa.
It was found that a wood cement board having an MPa or more could be obtained. In Comparative Example 1, a light weight effect was not obtained because the content of the inorganic hollow particles was low. In Comparative Example 2, although the weight was reduced, the bending strength was only about 7 MPa. In Comparative Example 3, since the partition walls of the inorganic hollow particles were too thin, they could not withstand high-pressure pressing and had poor light weight effects and poor strength.
【発明の効果】上述のように、本発明のセメント組成物
と、及び木質セメント板の製造方法を用いると、軽量化
と共に高圧プレス条件が可能となるので結果的に軽量化
と共に強度にも優れる木質セメント板用を提供すること
が可能となる。As described above, when the cement composition of the present invention and the method for producing a wood cement board are used, the weight can be reduced and the high-pressure pressing conditions can be achieved. As a result, the weight is reduced and the strength is excellent. It is possible to provide a wood cement board.
───────────────────────────────────────────────────── 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 28/02 (Ｃ０４Ｂ 28/02 14:18 14:18 18:10 18:10 14:04 14:04 Ａ 18:26） 18:26） 111:40 111:40 111:72 111:72 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // (C04B 28/02 (C04B 28/02 14:18 14:18 18:10 18:10 14:04 14:04 A 18:26) 18:26) 111: 40 111: 40 111: 72 111: 72
Claims (2)
粒子からなる木質セメント板用組成物であって、前記球
形状無機質中空粒子は以下の特性を有し、 中空率は、５０〜９０％、 隔壁厚みは、２〜１０μｍ、 粒子を構成する成分中のＳｉＯ2 含有率が、５０〜７
０重量％、且つ、上記木片セメント板用組成物中に占め
る前記球形状無機質中空粒子の割合が１０〜５０体積％
である木質セメント板用組成物。1. A composition for a wood cement board comprising cement, wood chips, and spherical inorganic hollow particles, wherein said spherical inorganic hollow particles have the following characteristics: a hollow ratio of 50 to 90%; The partition wall thickness is 2 to 10 μm, and the content of SiO 2 in the components constituting the particles is 50 to 7
0% by weight, and the ratio of the spherical inorganic hollow particles in the composition for a wood chip cement board is 10 to 50% by volume.
A composition for a wood cement board, which is:
物、及び水からなるセメント混合物を、型枠上に展開
し、５〜２０ＭＰａの圧力でプレス成形することを特徴
とする木質セメント板の製造方法。2. A wood cement board according to claim 1, wherein the composition for wood cement board according to claim 1 and a cement mixture comprising water are spread on a mold and pressed at a pressure of 5 to 20 MPa. Production method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000344286A JP4630448B2 (en) | 2000-11-10 | 2000-11-10 | Composition for wood cement board and method for producing wood cement board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000344286A JP4630448B2 (en) | 2000-11-10 | 2000-11-10 | Composition for wood cement board and method for producing wood cement board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002154857A true JP2002154857A (en) | 2002-05-28 |
| JP4630448B2 JP4630448B2 (en) | 2011-02-09 |
Family
ID=18818506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000344286A Expired - Fee Related JP4630448B2 (en) | 2000-11-10 | 2000-11-10 | Composition for wood cement board and method for producing wood cement board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4630448B2 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04500065A (en) * | 1989-05-22 | 1992-01-09 | アドヴァンスド・コンクリート・テクノロジー・インコーポレイテッド | Perlite concrete for high strength structures |
| JPH04280885A (en) * | 1991-03-08 | 1992-10-06 | Tokyo Gas Co Ltd | Composition for highly heat-insulating high-strength light-weight concrete and production of highly heat-insulating high-strength light-weight concrete |
| JPH05194004A (en) * | 1992-01-17 | 1993-08-03 | Daiken Trade & Ind Co Ltd | Wood piece cement plate |
| JPH0687637A (en) * | 1992-09-28 | 1994-03-29 | Noda Corp | Production of woody cement molded goods |
| JPH09188558A (en) * | 1996-01-05 | 1997-07-22 | Mitsubishi Materials Corp | Wood chip cement board |
| WO2000028809A1 (en) * | 1998-11-18 | 2000-05-25 | Advanced Construction Materials Corporation | Strengthened, light weight wallboard and method and apparatus for making the same |
-
2000
- 2000-11-10 JP JP2000344286A patent/JP4630448B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04500065A (en) * | 1989-05-22 | 1992-01-09 | アドヴァンスド・コンクリート・テクノロジー・インコーポレイテッド | Perlite concrete for high strength structures |
| JPH04280885A (en) * | 1991-03-08 | 1992-10-06 | Tokyo Gas Co Ltd | Composition for highly heat-insulating high-strength light-weight concrete and production of highly heat-insulating high-strength light-weight concrete |
| JPH05194004A (en) * | 1992-01-17 | 1993-08-03 | Daiken Trade & Ind Co Ltd | Wood piece cement plate |
| JPH0687637A (en) * | 1992-09-28 | 1994-03-29 | Noda Corp | Production of woody cement molded goods |
| JPH09188558A (en) * | 1996-01-05 | 1997-07-22 | Mitsubishi Materials Corp | Wood chip cement board |
| WO2000028809A1 (en) * | 1998-11-18 | 2000-05-25 | Advanced Construction Materials Corporation | Strengthened, light weight wallboard and method and apparatus for making the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4630448B2 (en) | 2011-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2418187B1 (en) | Dry mixture for manufacturing cellular fibro concrete and method therefor | |
| JP7054081B2 (en) | Cement composition, cement paste, cement mortar and concrete material | |
| CA2537283A1 (en) | Building cement and process of obtaining a building cement | |
| KR20060104990A (en) | Cement setting accelerator | |
| JP2005343740A (en) | Manufacturing process of wood cement board | |
| JP2003146731A (en) | Fiber cement plate and manufacturing method therefor | |
| JP2002154857A (en) | Composition for cemented wood board and production process of cemented wood board | |
| JPH04119957A (en) | High-strength concrete | |
| JP3200804B2 (en) | Hydraulic composite material and method for producing high-strength concrete using the same | |
| JP2006188398A (en) | Cementitious composition | |
| JP2006069807A (en) | Inorganic board and its manufacturing method | |
| JP2002321305A (en) | Cemented chip laminated board | |
| JP2006069806A (en) | Inorganic board and its manufacturing method | |
| JP2001097761A (en) | Cement chip board laminate | |
| JPH0569787B2 (en) | ||
| JP2001080946A (en) | Wood chip cement board | |
| JP2001129818A (en) | Method for manufacturing woody cement plate | |
| JPH10245254A (en) | Lightweight inorganic board utilizing waste | |
| JP2001269924A (en) | Woody cement board and its manufacturing | |
| JPH04300232A (en) | Composite gypsum board and its production | |
| WO1995018077A1 (en) | Concrete compositions and method of manufacturing concrete | |
| JP2002166491A (en) | Wood piece and cement laminate | |
| JP2002154865A (en) | Cemented chip board and cemented chip laminate board | |
| JP2000044320A (en) | Inorganic hardened body and its production | |
| JP2002167259A (en) | Additionally decorative woody cement board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070720 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20091209 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100105 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100303 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20101020 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20101115 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131119 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131119 Year of fee payment: 3 |
|
| LAPS | Cancellation because of no payment of annual fees |