JP2002292612A - Method for manufacturing inorganic cement composite plate - Google Patents
Method for manufacturing inorganic cement composite plateInfo
- Publication number
- JP2002292612A JP2002292612A JP2001102220A JP2001102220A JP2002292612A JP 2002292612 A JP2002292612 A JP 2002292612A JP 2001102220 A JP2001102220 A JP 2001102220A JP 2001102220 A JP2001102220 A JP 2001102220A JP 2002292612 A JP2002292612 A JP 2002292612A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- curing
- inorganic
- strength
- carbonation
- 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
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
-
- 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
- C04B2111/40—Porous or lightweight materials
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は建築材料として用い
られる無機質セメント複合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 method for producing an inorganic cement composite board used as a building material.
【０００２】[0002]
【従来の技術】従来から、軽量高曲げ強度を得るために
補強効果を期待して繊維質を多く配合したセメント繊維
板が知られている。また、更に軽量化を図るために、軽
量細骨材や気泡を多く含んだ軽量なセメント板を芯（中
間層）として、その両面に上述のセメント繊維板をフェ
ノール樹脂等の熱硬化性樹脂等の接着剤で接合した複層
もしくは三層構造をとるセメント複合板が知られてい
る。また、本発明者らにおいては、特願２０００−７０
６７７号において、セメント及び必要に応じて配合され
る無機質粉末に、有機高分子系炭酸化促進剤（例えば、
エチレン−酢酸ビニル系エマルション）を含む硬化体を
成形して、前養生を行なった後、所定の期間、炭酸ガス
中で養生することによって、養生後に達した曲げ強さの
最大値を、ほぼそのまま長期間に亘って維持することの
できる高曲げ強度で耐久性に優れたセメント系硬化体を
得る技術を記載している。2. Description of the Related Art Conventionally, a cement fiber board in which a large amount of fiber is blended in order to obtain a lightweight and high bending strength with the expectation of a reinforcing effect is known. In order to further reduce the weight, a lightweight cement board containing a large amount of fine fine aggregate and air bubbles is used as a core (intermediate layer), and the above-mentioned cement fiber board is coated on both sides with a thermosetting resin such as a phenol resin. There is known a cement composite board having a multi-layer or three-layer structure joined by an adhesive. In addition, the present inventors have disclosed in Japanese Patent Application No. 2000-70.
No. 677, an organic polymer-based carbonation accelerator (for example,
After forming a cured product containing (ethylene-vinyl acetate emulsion), performing pre-curing, and curing in a carbon dioxide gas for a predetermined period, the maximum value of the bending strength reached after curing is substantially unchanged. It describes a technique for obtaining a cement-based hardened body having high bending strength and excellent durability that can be maintained for a long period of time.
【０００３】[0003]
【発明が解決しようとする課題】上記の複層もしくは三
層構造を有するセメント系複合板は、層間での結合力が
弱く、実際の使用状況下では荷重や水分等による層間剥
離等により、複層構造のメリットが出ないとともに、有
機系接着剤により接合しているため長期耐久性に劣る。
そこで、本発明は、接合強度に優れた無機質セメント複
合板の製造方法を提供することを目的とする。The cement-based composite board having the above-mentioned multi-layer or three-layer structure has a weak bonding force between the layers, and in an actual use condition, it may be delaminated due to delamination due to a load or moisture. The advantage of the layer structure is not exhibited, and the long-term durability is inferior due to joining by an organic adhesive.
Therefore, an object of the present invention is to provide a method for producing an inorganic cement composite board having excellent bonding strength.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、上記課題
を解決するために鋭意検討した結果、有機高分子の中
に、炭酸化を促進するものがあること、及びセメントを
含む表層ペーストまたはモルタルに促進炭酸化養生を施
す前に、成形体の材料として該有機高分子系炭酸化促進
剤を配合しておけば、促進炭酸化養生によって表層部と
中層部との接着強度が向上して、高い接合強度を有する
無機質セメント複合板が得られることを見出し、本発明
を完成した。Means for Solving the Problems As a result of extensive studies to solve the above problems, the present inventors have found that some organic polymers promote carbonation, and that a surface paste containing cement is used. Alternatively, if the organic polymer-based carbonation accelerator is blended as a material of the molded body before the mortar is subjected to the accelerated carbonation curing, the adhesion strength between the surface layer portion and the middle layer portion is improved by the accelerated carbonation curing. As a result, they have found that an inorganic cement composite board having high bonding strength can be obtained, and have completed the present invention.
【０００５】すなわち、本発明の無機質セメント複合板
の製造方法は、セメント及び軽量骨材と必要に応じて配
合される繊維成分等から成る軽量セメントパネルを中層
部とし、その少なくとも片面に、セメントと細骨材と繊
維成分を主成分とするペーストまたはモルタル状の材料
を載せて表層部を形成して複層板とし、この複層板を促
進炭酸化養生して一体化することを特徴とする (請求項
１)。また、あらかじめセメント等とともに有機高分子
系炭酸化促進剤を含有しておくことで、一体化強度が向
上し、一体化後も長期間に亘って強度を維持することが
できる（請求項２）。上記促進炭酸化養生は、遅くとも
表層部の水和材齢１０日以内に開始される必要がある
（請求項３）。[0005] That is, the method for producing an inorganic cement composite board of the present invention comprises, as a middle layer, a lightweight cement panel comprising a cement, a lightweight aggregate, and a fiber component or the like blended as required, and at least one surface thereof includes A paste or mortar-like material mainly composed of fine aggregate and fiber component is placed thereon to form a surface layer portion to form a multilayer plate, and this multilayer plate is integrated by accelerated carbonation curing. (Claim 1). In addition, by incorporating an organic polymer-based carbonation accelerator together with cement or the like in advance, the strength of integration can be improved, and the strength can be maintained for a long time after integration (claim 2). . The accelerated carbonation curing must be started at the latest within 10 days of hydration age of the surface layer (claim 3).
【０００６】[0006]
【発明の実施の形態】以下、本発明を詳しく説明する。
先ず、促進炭酸化養生される複層板について説明する
と、複層板は中間層とこの表層の片面もしくは両面の表
層から構成される。中間層は、軽量性を得るためにセメ
ントを結合材とし、軽量骨材と必要に応じて配合される
繊維成分を主体としたモルタルを、抄造や流し込み成形
によって得られたグリーンシートを水中、気中、蒸気養
生やオートクレーブ養生等の通常の養生を施したセメン
ト系軽量板、またはセメント系軽量繊維板で構成され
る。この中間層の厚さは、必要とする無機質セメント複
合板の用途によって適宜定められる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
First, the multilayer board subjected to accelerated carbonation curing will be described. The multilayer board is composed of an intermediate layer and one or both surface layers of this surface layer. The intermediate layer is made of a cement as a binder to obtain light weight, and a mortar mainly composed of a lightweight aggregate and a fiber component blended as required. It is made of a cement-based lightweight board or a cement-based lightweight fiberboard that has been subjected to normal curing such as medium or steam curing or autoclave curing. The thickness of the intermediate layer is appropriately determined depending on the required use of the inorganic cement composite board.
【０００７】上記中間層に用いられる軽量細骨材として
は、特に限定されることはなく、パーライト、シラスバ
ルーン、バーミキュライトや、頁岩、粘土等を焼成・発
泡させた人工軽量細骨材や製紙スラッジを焼却して得ら
れるパルプスラッジ（ＰＳ）灰砂等の無機質軽量細骨
材、また、スチレンビーズ、塩化ビニル、ポリプロピレ
ン、ポリエチレン、ポリスチレン等の合成樹脂発泡体及
びそれらの廃材を利用することができる。大きさ等につ
いても特に限定されるものではないが、通常、粒子径範
囲は０．１ｍｍ〜１．２ｍｍであり、比重は０．３〜
０．９程度のものが使用される。The lightweight fine aggregate used for the intermediate layer is not particularly limited, and is made of perlite, shirasu balloon, vermiculite, artificial lightweight fine aggregate obtained by firing and foaming shale, clay, etc., and papermaking sludge. Inorganic lightweight fine aggregates such as pulp sludge (PS) ash sand obtained by incineration of pulp, synthetic resin foams such as styrene beads, vinyl chloride, polypropylene, polyethylene, and polystyrene and waste materials thereof can be used. . Although there is no particular limitation on the size and the like, usually, the particle size range is 0.1 mm to 1.2 mm, and the specific gravity is 0.3 to
About 0.9 is used.
【０００８】本発明に用いられるセメントは、水和に伴
い水酸化カルシウム並びにケイ酸カルシウム水和生成物
が生成するセメントであれば特に限定されず、例えば、
低熱ポルトランドセメント（高ビーライト系セメン
ト）、中庸熱ポルトランドセメント、普通ポルトランド
セメント、早強ポルトランドセメント、超早強ポルトラ
ンドセメント、耐硫酸塩ポルトランドセメント等のポル
トランドセメントや、各種低アルカリ形ポルトランドセ
メント等のポルトランドセメントや、高炉セメント、シ
リカセメント、フライアッシュセメント等の混合セメン
ト、白色セメント等が挙げられる。[0008] The cement used in the present invention is not particularly limited as long as it produces calcium hydroxide and calcium silicate hydrated products upon hydration.
Portland cements such as low heat Portland cement (high belite cement), medium heat Portland cement, ordinary Portland cement, early-strength Portland cement, ultra-high-strength Portland cement, sulfate-resistant Portland cement, and various low-alkali-type Portland cements Portland cement, blast furnace cement, silica cement, mixed cement such as fly ash cement, white cement, and the like.
【０００９】上記表層について説明すると、セメントを
結合材とし、細骨材と繊維成分を主成分とする粉粒体を
水で混練したペーストやモルタル状の混練物である。有
機高分子系炭酸化促進剤は、この粉粒体と水の混合物に
混合して使用される。これらのペーストやモルタルを刷
毛等により塗布、吹付け、型枠を設置し流し込みによ
り、上記の中間層の少なくとも片面に所定の厚さとなる
ように成形される。The surface layer is described as a paste or a mortar-like kneaded material obtained by kneading water with a fine particle mainly composed of fine aggregate and fiber components, using cement as a binder. The organic polymer-based carbonation accelerator is used by being mixed with a mixture of the powder and the water. These pastes and mortars are applied by a brush or the like, sprayed, a mold is set and poured, and at least one surface of the intermediate layer is formed to have a predetermined thickness.
【００１０】表層においても、前述の中間層に用いられ
るセメントが使用できる。また、セメントと共に必要に
応じて無機質粉末を用いることができる。これらの無機
質粉末としては、高炉スラグ粉末、フライアッシュ、石
灰石粉、硅石粉、シリカフューム、ビーライトを多量に
含む天然物や人工物などから選ばれる一種以上からなる
ものが用いられる。また、コンクリート微粉やセメント
系製品等のケイ酸カルシウム系廃材を粉砕した微紛を用
いることもできる。The cement used for the above-mentioned intermediate layer can also be used for the surface layer. In addition, an inorganic powder can be used together with the cement, if necessary. As these inorganic powders, use is made of at least one selected from blast furnace slag powder, fly ash, limestone powder, silica stone powder, silica fume, natural products containing a large amount of belite, and artificial products. Further, fine powder obtained by pulverizing calcium silicate-based waste materials such as concrete fine powder and cement-based products can also be used.
【００１１】本発明で用いる有機高分子系炭酸化促進剤
としては、例えば、水性ポリマーディスパージョン、再
乳化形粉末樹脂（粉末エマルション）、水溶性ポリマー
等のうちのいくつかが挙げられる。例えば、アクリル酸
エステル、ポリ酢酸ビニル、エチレン−酢酸ビニル共重
合体などの熱可塑性エマルションや、スチレンブタジエ
ンゴムなどの合成ゴムラテックスが挙げられる。再乳化
形粉末樹脂においては、例えば、ポリアクリル酸エステ
ル、エチレン−酢酸ビニル共重合体、酢酸ビニル−ビニ
ルバーサテート（ＶｅｏＶａ）等が挙げられる。水溶性
ポリマーにおいては、メチルセルロースなどのセルロー
ス誘導体、ポリビニルアルコール等が挙げられる。The organic polymer-based carbonation accelerator used in the present invention includes, for example, some of aqueous polymer dispersion, re-emulsifiable powder resin (powder emulsion), and water-soluble polymer. For example, thermoplastic emulsions such as acrylates, polyvinyl acetates, ethylene-vinyl acetate copolymers, and synthetic rubber latexes such as styrene-butadiene rubber can be used. Examples of the re-emulsifiable powder resin include polyacrylate, ethylene-vinyl acetate copolymer, vinyl acetate-vinyl versatate (VeoVa), and the like. Examples of the water-soluble polymer include cellulose derivatives such as methylcellulose and polyvinyl alcohol.
【００１２】有機高分子系炭酸化促進剤の添加量は、固
形分に換算して、セメント並びに必要に応じて配合され
る無機質粉末の合計量１００重量部に対して、２〜２０
重量部で効果がみられ、好ましくは３〜１５重量部であ
る。該添加量が２重量部未満であると、長期間に亘って
強度を保持するのが難しくなり、２０重量部を超えると
高コストとなるとともに硬化体の弾性率が低くなり、目
的の強度性状を得ることができなくなる。[0012] The amount of the organic polymer-based carbonation accelerator is 2 to 20 parts by weight based on 100 parts by weight of the total amount of cement and, if necessary, inorganic powder mixed in terms of solid content.
The effect is seen in parts by weight, preferably 3 to 15 parts by weight. If the amount is less than 2 parts by weight, it is difficult to maintain the strength for a long period of time. If the amount exceeds 20 parts by weight, the cost becomes high and the elastic modulus of the cured product becomes low. Can not be obtained.
【００１３】セメント、細骨材や繊維等と共に配合可能
な他の材料としては、各種混和剤等が挙げられる。細骨
材は、例えば、川砂、海砂、山砂、砕砂またはこれらの
混合物が挙げられる。細骨材の配合量は、セメント及び
必要に応じて配合される無機質粉末の合計量１００重量
部に対して、通常、３０〜４００重量部程度であるが、
必要とする無機質セメント複合板の比重によって適宜定
めればよい。Other materials that can be blended with cement, fine aggregate, fibers, etc. include various admixtures. The fine aggregate includes, for example, river sand, sea sand, mountain sand, crushed sand, or a mixture thereof. The amount of the fine aggregate is usually about 30 to 400 parts by weight, based on 100 parts by weight of the total amount of the cement and the inorganic powder to be added as necessary.
What is necessary is just to determine suitably according to the specific gravity of the required inorganic cement composite board.
【００１４】繊維としては、Ｅガラス等のガラス繊維、
スラグ繊維、炭素繊維、ビニロン、ポリプロピレン、ア
クリル、パルプ等の繊維、シリコーンカーバイト繊維、
石綿などの各種天然繊維及び合成繊維を挙げることがで
きる。混和剤としては、減水剤、ＡＥ減水剤、高性能減
水剤、高性能ＡＥ減水剤、水和促進剤、水和遅延剤、乾
燥収縮低減剤、増粘剤等が挙げられる。混和剤の種類及
び配合量は、混和剤以外の材料の種類及び配合量や、無
機質セメント複合板の用途を考慮して、適宜定めればよ
い。As the fibers, glass fibers such as E glass;
Slag fiber, carbon fiber, vinylon, polypropylene, acrylic, pulp and other fibers, silicone carbide fiber,
Examples include various natural fibers such as asbestos and synthetic fibers. Examples of the admixture include a water reducing agent, an AE water reducing agent, a high performance water reducing agent, a high performance AE water reducing agent, a hydration accelerator, a hydration retarder, a drying shrinkage reducing agent, a thickener, and the like. The type and amount of the admixture may be appropriately determined in consideration of the type and amount of the material other than the admixture and the use of the inorganic cement composite board.
【００１５】表層部のペーストやモルタルの混練水量は
特に限定されるものではないが、好ましくは水セメント
比で０．３０〜０．６０である。水セメント比が０．３
０未満であると、炭酸化が進行しづらくなることで促進
炭酸化による接合強度の増進効果が得られなくなるおそ
れがあり、０．６０を超えると、強度の低下や耐久性を
損うおそれがあるからである。なお、本明細書中では、
「水セメント比」とは、「水」の質量（Ｗ）を「セメン
ト及び必要に応じて配合される無機質粉末」の質量
（Ｃ）で割った比率（Ｗ／Ｃ）をいう。The amount of kneading water for the paste or mortar in the surface layer is not particularly limited, but is preferably 0.30 to 0.60 in terms of a water cement ratio. Water cement ratio is 0.3
If it is less than 0, the carbonation becomes difficult to progress, so that the effect of enhancing the bonding strength by accelerated carbonation may not be obtained. If it exceeds 0.60, the strength may decrease and the durability may be impaired. Because there is. In this specification,
The term “water-cement ratio” refers to a ratio (W / C) obtained by dividing the mass (W) of “water” by the mass (C) of “cement and optionally blended inorganic powder”.
【００１６】各種材料の混練に用いるミキサとしては、
特に限定されるものではないが、パンタイプミキサ、二
軸ミキサ、オムニミキサ、ホバートミキサ等の慣用のミ
キサを用いれば良い。混練方法としては、全ての材料を
一括してミキサに投入し混練しても良いし、水、有機高
分子系炭酸化促進剤、混和剤以外の材料をミキサに投入
して空練りした後に、水等を投入して混練しても良い。
混練後、混練物を所定の型枠に投入する。型枠に投入さ
れた混練物に対して、外部振動を加えたり、加圧装置等
を用いて加圧成形しても良い。As a mixer used for kneading various materials,
Although not particularly limited, a conventional mixer such as a pan-type mixer, a two-axis mixer, an omni mixer, and a Hobart mixer may be used. As a kneading method, all the materials may be collectively charged into a mixer and kneaded, or water, an organic polymer-based carbonation accelerator, materials other than the admixture may be charged into the mixer and kneaded, and then kneaded. Water and the like may be charged and kneaded.
After kneading, the kneaded material is put into a predetermined mold. External kneading may be applied to the kneaded material placed in the mold, or pressure molding may be performed using a pressure device or the like.
【００１７】表層部を成形した後、通常１〜２日程度で
脱型して成形体とし、その後、本発明の養生を行なう。
促進炭酸化養生は、好ましくは、遅くとも成形体の水和
材齢１０日以内、より好ましくは７日以内に開始する。After the surface layer is formed, it is usually removed from the mold for about 1 to 2 days to obtain a formed body, and thereafter, curing according to the present invention is performed.
The accelerated carbonation curing preferably starts at the latest within 10 days, more preferably within 7 days of the hydration age of the shaped body.
【００１８】炭酸化養生は、通常、気中養生として行な
われるが、必要に応じて、湿空あるいは蒸気養生を組み
合わせて行なってもよい。気中養生の場合、成形体は、
炭酸ガス（ＣＯ2）濃度が１〜１００％、好ましくは３
〜１００％の条件下で促進炭酸化がなされる。促進炭酸
化養生時の温度は、特に限定されないが、通常、１０〜
８０℃程度である。促進炭酸化養生時の湿度（Ｒ.Ｈ.）
は、特に限定されないが、通常、４０〜９０％程度であ
る。The carbonation curing is usually performed as aerial curing, but may be performed in combination with moist air or steam curing as required. In the case of air curing, the molded body is
Carbon dioxide (CO 2 ) concentration of 1 to 100%, preferably 3
Accelerated carbonation is performed under 100% conditions. The temperature during accelerated carbonation curing is not particularly limited, but is usually 10 to
It is about 80 ° C. Humidity during accelerated carbonation curing (RH)
Is not particularly limited, but is usually about 40 to 90%.
【００１９】気中あるいは湿空で促進炭酸化養生を行な
う場合の養生時間は、炭酸ガス濃度等の諸条件を考慮し
て定められる。例えば、炭酸ガス濃度１０％、温度２０
℃、湿度（Ｒ.Ｈ.）６０％の場合で、４〜１０日程度で
ある。前述のように、促進炭酸化養生を開始する時期
は、遅くとも成形体の水和材齢１０日以内であることが
好ましい。これを過ぎると、炭酸化養生の効果が得られ
難くなり強度の発現性が遅くなるおそれがある。The curing time when performing accelerated carbonation curing in the air or moist air is determined in consideration of various conditions such as the concentration of carbon dioxide. For example, carbon dioxide concentration 10%, temperature 20
It is about 4 to 10 days when the temperature is 60 ° C. and the humidity (RH) is 60%. As described above, the time when the accelerated carbonation curing is started is preferably at the latest within 10 days of the hydrated material age of the molded body. If it exceeds this, the effect of carbonation curing becomes difficult to obtain, and there is a possibility that the development of strength may be delayed.
【００２０】本発明では、促進炭酸化養生の前に、水中
養生または湿空養生の工程を加えるのが好ましい。水中
養生または湿空養生は、通常、脱型直後または成形直後
から１〜１０日程度行なわれる。水中養生や湿空養生等
の前養生を行なうことにより、促進炭酸化養生による無
機質セメント複合板の接合強度をより一層向上させるこ
とができる。なお、湿空養生は、通常、湿度（Ｒ.Ｈ.）
９０％以上、温度１０〜６０℃程度の雰囲気下で行なわ
れる。In the present invention, it is preferable to add a step of underwater curing or wet-air curing before accelerated carbonation curing. Underwater curing or wet-air curing is usually performed for about 1 to 10 days immediately after demolding or immediately after molding. By performing pre-curing such as underwater curing or wet-air curing, the bonding strength of the inorganic cement composite board by accelerated carbonation curing can be further improved. It should be noted that the moisture and air curing is usually performed under the humidity (RH).
This is performed in an atmosphere of 90% or more and a temperature of about 10 to 60 ° C.
【００２１】本発明で用いられる炭酸ガスとしては、市
販の二酸化炭素、ドライアイスの他、セメント工場、火
力発電所やゴミ焼却場等の燃焼ガスや廃棄ガス等が使用
できる。As carbon dioxide used in the present invention, commercially available carbon dioxide and dry ice, as well as combustion gases and waste gases from cement factories, thermal power plants and garbage incineration plants can be used.
【００２２】（実施例１〜１０、比較例１〜５に用いる
中間層の作製）普通ポルトランドセメント５０重量部、
硅石粉末３２重量部、パルプ８重量部及びパーライト１
０重量部を水とミキサにより混練し、濃度２０％のスラ
リーを調整した。次に、このスラリーの所定量を計量し
フィルタープレス成形により成形を行なった後、蒸気養
生、オートクレーブ養生を施し１６×１６×１ｃｍの軽
量繊維セメント板を作製し、中間層とした。なお、接合
強度は、ＪＩＳ Ａ６２０３に準拠し、養生後の無機質
セメント複合板の表層部から中間層まで達する縦４ｃ
ｍ、横４ｃｍの正方形状に切り込みを入れた後、この切
り込みを入れた表層部の表面に鋼製ジグを接着剤で接着
し、引張り試験を行なったときの破断時の強度を面積で
除した。また、破断位置を目視により観察し、破断位置
の割合の大きい破断モードを測定した。(Preparation of Intermediate Layer Used in Examples 1 to 10 and Comparative Examples 1 to 5) 50 parts by weight of ordinary Portland cement,
32 parts by weight of silica powder, 8 parts by weight of pulp and perlite 1
0 parts by weight was kneaded with water and a mixer to prepare a slurry having a concentration of 20%. Next, a predetermined amount of this slurry was weighed and formed by filter press molding, followed by steam curing and autoclave curing to produce a 16 × 16 × 1 cm lightweight fiber cement board, which was used as an intermediate layer. In addition, the joining strength is based on JIS A6203, and the vertical 4c extending from the surface layer portion to the middle layer of the cured inorganic cement composite board.
m, a 4 cm wide cut was made, and a steel jig was bonded to the surface of the cut surface with an adhesive, and the strength at break when a tensile test was performed was divided by the area. . Further, the breaking position was visually observed, and a breaking mode having a large ratio of the breaking position was measured.
【００２３】［実施例１〜１０、比較例１〜５］表層の
モルタルの作製方法は、ＪＩＳ Ｒ５２０１に準拠し
た。中間層の表面に内のり１６×１６×１ｃｍの樹脂製
型枠を設置し、この型枠内に表層用モルタルを流し込み
成形または盛り込み成形を行なった。無機質セメント複
合板の養生条件は、型枠内に混練物を投入後、脱型する
までの１日間を、湿空養生（２０℃、湿度（Ｒ.Ｈ.）９
０％以上）とした。その後、本養生としては、標準養生
（６０℃蒸気×１０時間→オートクレーブ１８６℃×６
時間→室温まで徐冷）及び促進炭酸化養生（２０℃、湿
度（Ｒ.Ｈ.）６０％、炭酸ガス濃度１０％）を行なっ
た。[Examples 1 to 10 and Comparative Examples 1 to 5] The mortar for the surface layer was prepared in accordance with JIS R5201. A resin mold having an inner diameter of 16 × 16 × 1 cm was placed on the surface of the intermediate layer, and a mortar for a surface layer was cast into or molded into the mold. The curing condition of the inorganic cement composite board is as follows. One day after the kneaded material is put into the mold frame and before the mold is released, curing is performed in a moist air (20 ° C., humidity (RH) 9
0% or more). Then, as the main curing, the standard curing (60 ° C. steam × 10 hours → autoclave 186 ° C. × 6)
Time → gradually cooled to room temperature) and accelerated carbonation curing (20 ° C., humidity (RH) 60%, carbon dioxide gas concentration 10%).
【００２４】（１）表層用材料 無機質セメント複合板の表層を作製するために、以下の
材料を用いた。 セメント （Ｎ）普通ポルトランドセメント （Ｌ）低熱ポルトランドセメント（ビーライト含有率５
１％） 細骨材：ＪＩＳ Ｒ５２０１標準砂 繊維：パルプ 有機高分子系炭酸化促進剤（ポリマーエマルション） （Ａ）エチレン−酢酸ビニル（ＥＶＡ）系エマルション （電気化学工業社製、商品名：「８３ＰＬＤ」） （Ｂ）スチレン−アクリル酸エステル系エマルション （日本エヌエスシー社製、商品名：「ＧＦ１Ｔ」） 混練水：水道水を使用(1) Material for Surface Layer The following materials were used for producing the surface layer of the inorganic cement composite board. Cement (N) Ordinary Portland cement (L) Low heat Portland cement (belite content 5
Fine aggregate: JIS R5201 standard sand Fiber: pulp Organic polymer-based carbonation accelerator (polymer emulsion) (A) Ethylene-vinyl acetate (EVA) -based emulsion (trade name: 83PLD manufactured by Denki Kagaku Kogyo KK) (B) Styrene-acrylate emulsion (trade name: "GF1T", manufactured by NSC) Kneading water: use tap water
【００２５】（２）配合割合及び養生条件 各材料の配合割合（重量部）及び養生条件は、表１の通
りである。なお、表１中の「養生条件」は、型枠内で１
日間湿空養生を施した後、脱型し、その後に行なった養
生方法及び期間を記載したものである。(2) Mixing ratio and curing conditions Table 1 shows the mixing ratio (parts by weight) and the curing conditions of each material. Note that “curing conditions” in Table 1 are 1 in the formwork.
It describes a curing method and a period of time after performing wet air curing for one day, removing the mold, and then performing curing.
【００２６】[0026]
【表１】 [Table 1]
【００２７】（３）実験結果 実施例１〜４、比較例１〜２ 実施例１〜４及び比較例１〜２の作製した無機質セメン
ト複合板について、接合強度を測定した結果を表２に示
す。(3) Experimental results Tables 2 and 3 show the results of measuring the bonding strength of the inorganic cement composite boards produced in Examples 1 to 4 and Comparative Examples 1 and 2. .
【００２８】[0028]
【表２】 [Table 2]
【００２９】表２から、促進炭酸化養生を行なった無機
質セメント複合板においては、標準養生によって得られ
た無機質セメント複合板に比べて、養生後の接合強度が
大きく、促進炭酸化養生を行なうことで高い接合強度を
得ることができることがわかる。また、標準養生を行な
った無機質セメント複合板（比較例１）においての破断
位置は、表層−中間層の界面破断となっており、接合強
度が弱くなっていることがわかる。From Table 2, it can be seen that the bond strength after curing of the inorganic cement composite board subjected to accelerated carbonation curing is higher than that of the inorganic cement composite board obtained by standard curing, and that accelerated carbonation curing is performed. It can be understood that high bonding strength can be obtained with the above. In addition, the fracture position in the inorganic cement composite board subjected to the standard curing (Comparative Example 1) is the interface fracture between the surface layer and the intermediate layer, which indicates that the bonding strength is weak.
【００３０】実施例５〜１０、比較例３〜５ 実施例５〜１０及び比較例３〜５の表層配合を用いた無
機質セメント複合板を作製し、各種養生を施した後の接
合強さを測定した結果を表２に示す。Examples 5 to 10 and Comparative Examples 3 to 5 Inorganic cement composite boards using the surface layer compositions of Examples 5 to 10 and Comparative Examples 3 to 5 were prepared, and the bonding strength after various curing was determined. Table 2 shows the measured results.
【００３１】表２から、繊維を配合した表層材を用いた
無機質セメント複合板においては、促進炭酸化養生を行
なうことで、大きな接合強度が得られることがわかる。
また、標準養生を行なった無機質セメント複合板（比較
例３〜５）においての破断位置は、表層−中間層の界面
破断となっており、接合強度が弱くなっていることがわ
かる。From Table 2, it can be seen that in an inorganic cement composite board using a surface layer material mixed with fibers, a large bonding strength can be obtained by performing accelerated carbonation curing.
In addition, the fracture position in the inorganic cement composite board subjected to the standard curing (Comparative Examples 3 to 5) is the interface fracture between the surface layer and the intermediate layer, which indicates that the bonding strength is weak.
【００３２】[0032]
【発明の効果】本発明の製造方法により得られる無機質
セメント複合板は、高い接合強度を有し、その後、長期
間に亘ってその強度が低下することなく維持できるの
で、軽量高強度で耐久性の優れた無機質セメント複合板
として有望である。The inorganic cement composite board obtained by the production method of the present invention has a high bonding strength and can be maintained over a long period of time without decreasing its strength. Promising as an excellent inorganic cement composite 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 24/26 Ｃ０４Ｂ 28/04 28/04 40/02 40/02 Ｃ０４Ｂ 14:02 Ｂ //(Ｃ０４Ｂ 28/04 14:06 Ｚ 14:02 16:02 Ｚ 14:06 24:26 Ｃ 16:02 Ｆ 24:26 Ｇ 103:10 ） 111:20 103:10 111:40 111:20 Ｂ２８Ｂ 11/00 Ａ 111:40 (72)発明者 谷辺 徹 千葉県佐倉市大作２−４−２ 太平洋セメ ント株式会社内 Ｆターム(参考） 4F100 AE01A AE01B AE01C AG00 AK01B AK01C AK12 AK68 BA02 BA03 BA06 BA07 BA10B BA10C CA23B CA23C DG01A DG01B DG01C DG02 GB07 JL00 JL11 4G012 PA02 PA03 PA04 PA22 PB27 PB30 PB31 PC04 PC11 PC12 PC14 PE04 PE07 4G052 AB22 AB45 4G055 AA02 AA03 AC01 AC09 BA02 BA22 BA32 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C04B 24/26 C04B 28/04 28/04 40/02 40/02 C04B 14:02 B // (C04B 28 / 04 14:06 Z 14:02 16:02 Z 14:06 24:26 C 16:02 F 24:26 G 103: 10) 111: 20 103: 10 111: 40 111: 20 B28B 11/00 A 111 : 40 (72) Inventor Toru Tanibe 2-4-2 Daisaku, Sakura-shi, Chiba Prefecture F-term in Pacific Cement Co., Ltd. DG01C DG02 GB07 JL00 JL11 4G012 PA02 PA03 PA04 PA22 PB27 PB30 PB31 PC04 PC11 PC12 PC14 PE04 PE07 4G052 AB22 AB45 4G055 AA02 AA03 AC01 AC09 BA02 BA22 BA32
Claims (3)
合される繊維成分等から成る軽量セメントパネルを中層
部とし、その少なくとも片面にセメントと細骨材と繊維
成分を主成分とするペーストまたはモルタル状の材料を
載せて表層部を形成して複層板とし、この複層板を促進
炭酸化養生して一体化することを特徴とする無機質セメ
ント複合板の製造方法。1. A light-weight cement panel comprising a cement, a lightweight aggregate and a fiber component blended as needed with a fiber component or the like as an intermediate layer, and at least one surface thereof includes a paste containing cement, fine aggregate and a fiber component as main components. A method for producing an inorganic cement composite board, comprising forming a surface layer portion by placing a mortar-like material to form a multilayer board, and accelerating carbonation curing of the multilayer board to integrate it.
トまたはモルタルが、セメント及び必要に応じて配合さ
れる無機質粉末と細骨材並びに有機高分子系炭酸化促進
剤を含有することを特徴とする請求項１に記載の無機質
セメント複合板の製造方法。2. The paste or mortar used for the surface layer of the multilayer board contains cement, an inorganic powder and fine aggregate, if necessary, and an organic polymer-based carbonation accelerator. The method for producing an inorganic cement composite board according to claim 1.
の水和材齢１０日以内に開始されることを特徴とする請
求項１または２に記載の無機質セメント複合板の製造方
法。3. The method for producing an inorganic cement composite board according to claim 1, wherein the accelerated carbonation curing is started at the latest within 10 days of hydration age of the surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001102220A JP4641117B2 (en) | 2001-03-30 | 2001-03-30 | Manufacturing method of inorganic cement composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001102220A JP4641117B2 (en) | 2001-03-30 | 2001-03-30 | Manufacturing method of inorganic cement composite board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002292612A true JP2002292612A (en) | 2002-10-09 |
| JP4641117B2 JP4641117B2 (en) | 2011-03-02 |
Family
ID=18955439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001102220A Expired - Fee Related JP4641117B2 (en) | 2001-03-30 | 2001-03-30 | Manufacturing method of inorganic cement composite board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4641117B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008308363A (en) * | 2007-06-14 | 2008-12-25 | Taiheiyo Precast Concrete Industry Co Ltd | Method for improving unevenness of color in cement base cured body |
| JP4822373B1 (en) * | 2010-12-17 | 2011-11-24 | 中国電力株式会社 | Carbonation curing equipment, carbonized concrete manufacturing method and carbon dioxide fixing method |
| WO2013052427A2 (en) * | 2011-10-06 | 2013-04-11 | Morrow Brian D | Modular building construction system using light weight panels |
| USD861194S1 (en) | 2018-05-23 | 2019-09-24 | Blue Tomato Llc | Panel |
| US10450736B2 (en) | 2018-02-02 | 2019-10-22 | Blue Tomato Llc | Modular light weight construction system based on pre-slotted panels and standard dimensional splines |
| US10865560B1 (en) | 2018-12-10 | 2020-12-15 | Blue Tomato, Llc | Light weight post and beam construction system based on horizontally pre-slotted panels |
| US11015340B2 (en) | 2018-08-24 | 2021-05-25 | Blue Tomato Llc | Sealed envelope agricultural building constructions |
| US11254028B2 (en) | 2019-05-20 | 2022-02-22 | Saudi Arabian Oil Company | Systems and processes for accelerated carbonation curing of pre-cast cementitious structures |
| US11286658B2 (en) | 2018-12-10 | 2022-03-29 | Blue Tomato, Llc | Method for light weight construction using pre-slotted standard and transition panels |
| US11352775B2 (en) | 2018-12-10 | 2022-06-07 | Blue Tomato, Llc | Light weight construction system based on horizontally pre-slotted panels |
| US11401724B2 (en) | 2018-10-16 | 2022-08-02 | Blue Tomato Llc | Below grade fluid containment |
| US11697946B2 (en) | 2018-10-16 | 2023-07-11 | Blue Tomato, Llc | Pool or other below grade fluid containment |
| USD994148S1 (en) | 2019-12-10 | 2023-08-01 | Blue Tomato, Llc | Construction panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5443926A (en) * | 1977-09-14 | 1979-04-06 | Matsushita Electric Works Ltd | Method of making light weight cement product |
| JPS54117523A (en) * | 1978-03-03 | 1979-09-12 | Kubota Ltd | Plate material for building use and production thereof |
| JPH01219080A (en) * | 1988-02-29 | 1989-09-01 | Kajima Corp | Production of coated carbon fiber-reinforced concrete plate |
| JPH04349181A (en) * | 1991-05-23 | 1992-12-03 | Ask:Kk | Building cement board and its production |
-
2001
- 2001-03-30 JP JP2001102220A patent/JP4641117B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5443926A (en) * | 1977-09-14 | 1979-04-06 | Matsushita Electric Works Ltd | Method of making light weight cement product |
| JPS54117523A (en) * | 1978-03-03 | 1979-09-12 | Kubota Ltd | Plate material for building use and production thereof |
| JPH01219080A (en) * | 1988-02-29 | 1989-09-01 | Kajima Corp | Production of coated carbon fiber-reinforced concrete plate |
| JPH04349181A (en) * | 1991-05-23 | 1992-12-03 | Ask:Kk | Building cement board and its production |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008308363A (en) * | 2007-06-14 | 2008-12-25 | Taiheiyo Precast Concrete Industry Co Ltd | Method for improving unevenness of color in cement base cured body |
| JP4822373B1 (en) * | 2010-12-17 | 2011-11-24 | 中国電力株式会社 | Carbonation curing equipment, carbonized concrete manufacturing method and carbon dioxide fixing method |
| WO2012081486A1 (en) * | 2010-12-17 | 2012-06-21 | 中国電力株式会社 | Carbonation curing eqipment, process for producing carbonated concrete, and method for fixing carbon dioxide |
| WO2013052427A2 (en) * | 2011-10-06 | 2013-04-11 | Morrow Brian D | Modular building construction system using light weight panels |
| WO2013052427A3 (en) * | 2011-10-06 | 2013-06-06 | Morrow Brian D | Modular building construction system using light weight panels |
| US10450736B2 (en) | 2018-02-02 | 2019-10-22 | Blue Tomato Llc | Modular light weight construction system based on pre-slotted panels and standard dimensional splines |
| USD861194S1 (en) | 2018-05-23 | 2019-09-24 | Blue Tomato Llc | Panel |
| US11015340B2 (en) | 2018-08-24 | 2021-05-25 | Blue Tomato Llc | Sealed envelope agricultural building constructions |
| US11401724B2 (en) | 2018-10-16 | 2022-08-02 | Blue Tomato Llc | Below grade fluid containment |
| US11697946B2 (en) | 2018-10-16 | 2023-07-11 | Blue Tomato, Llc | Pool or other below grade fluid containment |
| US10865560B1 (en) | 2018-12-10 | 2020-12-15 | Blue Tomato, Llc | Light weight post and beam construction system based on horizontally pre-slotted panels |
| US11286658B2 (en) | 2018-12-10 | 2022-03-29 | Blue Tomato, Llc | Method for light weight construction using pre-slotted standard and transition panels |
| US11352775B2 (en) | 2018-12-10 | 2022-06-07 | Blue Tomato, Llc | Light weight construction system based on horizontally pre-slotted panels |
| US11254028B2 (en) | 2019-05-20 | 2022-02-22 | Saudi Arabian Oil Company | Systems and processes for accelerated carbonation curing of pre-cast cementitious structures |
| USD994148S1 (en) | 2019-12-10 | 2023-08-01 | Blue Tomato, Llc | Construction panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4641117B2 (en) | 2011-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5025872B2 (en) | Fiber cement building materials with low density additives | |
| CA2578055C (en) | Flexible hydraulic compositions | |
| CN101376582B (en) | Heat insulation wall integral pouring material and construction method | |
| RU2662741C2 (en) | Insulating mortar composition | |
| JP3025906B2 (en) | Gypsum-containing cementitious composition and production material therefrom | |
| WO2015130677A1 (en) | Improved fire core compositions and methods | |
| US20150175887A1 (en) | Fire core compositions and methods | |
| JPH0665618B2 (en) | Non-expanding, high hardening speed cement | |
| JP2002292612A (en) | Method for manufacturing inorganic cement composite plate | |
| CA2645402A1 (en) | Cement-based fire door core | |
| WO2004096726A1 (en) | Fire door core | |
| CN115010452A (en) | Gypsum-based ground ceramic tile bonding mortar and preparation method thereof | |
| JP2023041704A (en) | Inorganic board and method for producing the same | |
| CN110627456B (en) | Special plastering mortar for aerated concrete wall and preparation method thereof | |
| JP4658362B2 (en) | Manufacturing method for lightweight mortar | |
| CN108264270B (en) | Environment-friendly slurry for paving metal floor tiles | |
| JP2004284873A (en) | Hydraulic complex material | |
| JP3793410B2 (en) | Wood chip cement board | |
| EP0384898B1 (en) | Cementitious material for masonry constructions | |
| JP2001261467A (en) | Production process of cement-based hardened body | |
| JP2001302321A (en) | Mortar | |
| EP4242191A1 (en) | Reactive binder mixture for cementitious article | |
| JP2004010402A (en) | Fiber-containing gypsum board and its manufacturing process | |
| JP2696115B2 (en) | Fiber-reinforced cellular gypsum cement board and method for producing the same | |
| JPH0569787B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070214 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100126 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100223 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100419 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100706 |
|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20100813 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100824 |
|
| 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: 20101124 |
|
| 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: 20101126 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131210 Year of fee payment: 3 |
|
| LAPS | Cancellation because of no payment of annual fees |