JP3357992B2 - Refractory coating material for spraying and its construction method - Google Patents

Refractory coating material for spraying and its construction method

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Publication number
JP3357992B2
JP3357992B2 JP16865492A JP16865492A JP3357992B2 JP 3357992 B2 JP3357992 B2 JP 3357992B2 JP 16865492 A JP16865492 A JP 16865492A JP 16865492 A JP16865492 A JP 16865492A JP 3357992 B2 JP3357992 B2 JP 3357992B2
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JP
Japan
Prior art keywords
fire
coating material
spraying
foaming agent
refractory coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP16865492A
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Japanese (ja)
Other versions
JPH06191967A (en
Inventor
力 川島
守一 宇佐美
Original Assignee
株式会社アロマ化学機械工業
力 川島
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Priority to JP16865492A priority Critical patent/JP3357992B2/en
Publication of JPH06191967A publication Critical patent/JPH06191967A/en
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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
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • C04B24/14—Peptides; Proteins; Derivatives thereof
    • 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
    • C04B2111/00482—Coating or impregnation materials
    • 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
    • C04B2111/00482—Coating or impregnation materials
    • C04B2111/00577—Coating or impregnation materials applied by spraying
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Building Environments (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は間仕切り、壁等を吹付け
施工で作成できる吹付け用耐火被覆材および該被覆材の
施工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 refractory coating material for spraying which can be used to spray partitions, walls and the like, and a method for applying the coating material.

【０００２】[0002]

【従来の技術】従来、鉄筋コンクリートビルなどの内装
用の壁や間仕切りなどは、従来は、一定のサイズに作ら
れた軽量コンクリートパネルを組み合わせて作られてい
た。そのため施工には、少なくともパネルの両端を支え
るための人手を要するほか、パネルとパネルの継ぎ目や
天井や床面との間に生じる隙間を塞ぐための充填作業が
必要であった。しかも、このように充填しても、充填材
が乾燥した時その収縮により再び隙間が生じるなどのこ
ともあり、一様な壁面が得られないという問題があっ
た。またこのようにパネルを組み合わせた壁面では、均
一な断熱性、耐熱性、遮音性等が得られないなどの問題
点を有していた。板面に金網等を張設したものを支持材
として、この支持材面にモルタル等を塗布して壁面を作
る方法は従来より知られているが、この方法ではコテ塗
りなどの方法によらなければならないため、効率が悪
く、また従来の耐火被覆材は発泡剤を含まないため発泡
層が形成されず、そのため充分な断熱性、耐熱性、遮音
性等が得られないなどの他に、仕上がり壁の重量が大き
いため金網などの支持材の強度を強くしなければならな
いなどコスト的にも好ましくなかった。2. Description of the Related Art Conventionally, walls and partitions for interiors of reinforced concrete buildings and the like have conventionally been made by combining lightweight concrete panels made to a certain size. For this reason, the work required at least manual work to support both ends of the panel, and also required a filling operation for closing a gap generated between the panel and the joint between the panel and the ceiling or floor. In addition, even when the filler is filled in this way, when the filler is dried, the contraction may occur again due to the shrinkage, so that there is a problem that a uniform wall surface cannot be obtained. In addition, the wall having such a combination of panels has a problem that uniform heat insulation, heat resistance, sound insulation and the like cannot be obtained. A method of applying a mortar or the like to a surface of a metal net or the like provided on a plate surface as a supporting material and forming a wall surface by applying mortar or the like to the surface of the supporting material has been conventionally known. In addition, conventional fire-resistant coating materials do not contain a foaming agent and do not form a foamed layer because of the absence of a foaming agent, so that sufficient heat insulation, heat resistance, sound insulation, etc. cannot be obtained. Since the weight of the wall is large, the strength of a supporting material such as a wire net must be increased, which is not preferable in terms of cost.

【０００３】[0003]

【発明が解決しようとする課題】本発明は、多くの人手
を要することなく、簡単な吹付け作業で施工でき、軽量
で、完全な遮音性、断熱性、耐火性等を備えた間仕切り
や壁面が得られる耐火被覆材および施工方法を提供せん
とするものである。DISCLOSURE OF THE INVENTION The present invention can be carried out by a simple spraying operation without requiring a lot of manpower, and is a light-weight partition or wall having complete sound insulation, heat insulation and fire resistance. It is intended to provide a refractory covering material and a construction method which can obtain the above.

【０００４】[0004]

【課題を解決するための手段】本発明の耐火被覆材は、
粉体に仕上げられた蛋白質起泡剤を溶解し発泡させた水
性蛋白質気泡剤液を、無機質繊維、セメントまたはモル
タル、および軽量骨材等よりなる耐火被覆部材と混合し
て適当な流動性を有するスラッジ（またはスラリー）と
なし、該スラッジをコンプレッサー等で加圧してノズル
より噴出させて目的面に吹付け施工できるようにしたこ
とを特徴とするものである。The refractory coating material of the present invention comprises:
An aqueous protein foaming agent solution prepared by dissolving and foaming a powdered protein foaming agent is mixed with a fire-resistant covering member made of inorganic fiber, cement or mortar, lightweight aggregate, etc. to have appropriate fluidity. Sludge (or slurry) is formed, and the sludge is pressurized by a compressor or the like and is ejected from a nozzle so that the sludge can be sprayed on a target surface.

【０００５】また本発明の施工方法は、例えばビル内の
間仕切り壁を作成する場合、施工すべき場所に板などの
間仕切り部材の表面に適当な網目の金網を張設したもの
を支持材とし、このな支持材を２枚適当な間隔を開けて
設け、この支持材の金網面に上記耐火被覆材を吹き付け
ることによって行われる。吹き付けは、耐火被覆材のス
ラッジを入れた容器内にコンプレッサーなどで加圧空気
を送り込み、この圧力によっで容器内よりホースによっ
て所定の場所に送り、ホース先端のノズルより噴出させ
るとか、またはポンプで直接送りノズルより噴出させる
ことによって行われる。In the construction method of the present invention, for example, when forming a partition wall in a building, a support member is formed by stretching an appropriate mesh wire mesh on a surface of a partition member such as a plate at a place where the partition is to be constructed, Two such supporting members are provided at an appropriate interval, and the refractory coating is sprayed on a wire mesh surface of the supporting member. For spraying, pressurized air is sent by a compressor etc. into a container containing sludge of refractory coating material, sent to a predetermined place by a hose from inside the container by this pressure, and ejected from the nozzle at the tip of the hose, or a pump This is performed by directly ejecting from the feed nozzle.

【０００６】耐火被覆材の吹付け面を構成する部材は、
金網に限られることなく、適当な強度を有するものであ
れば良く、例えばメタルラスなどが使用できる。金網な
どの場合には、これを適当な木板、スレート板などに張
ったものを支持材として使用する。耐火被覆材の構成材
料である耐火被覆部材としては、従来よりコテ（鏝）塗
り用として使用されていたモルタル材や耐火性の壁用材
料が使用できる他、軽量コンクリート作成用の材料など
が使用できる。より具体的には、セメント、石膏、ロッ
クウールなどの無機繊維、メチルセルローズ等の結合剤
を配合してなる、アスク社等よりウエット等の名称で市
販されている耐火被覆部材が使用できる。[0006] The members constituting the spraying surface of the refractory coating material include:
The material is not limited to a wire mesh, and any material having an appropriate strength may be used. For example, a metal lath can be used. In the case of a wire mesh or the like, a material which is stretched on an appropriate wooden board or slate board is used as a support material. As the fire-resistant coating member, which is a constituent material of the fire-resistant coating material, mortar materials and fire-resistant wall materials which have been conventionally used for troweling can be used, as well as materials for making lightweight concrete. it can. More specifically, a fire-resistant covering member commercially available under the name of wet or the like from Ask Corporation or the like, containing inorganic fibers such as cement, gypsum and rock wool, and a binder such as methylcellulose can be used.

【０００７】本発明で使用する蛋白質起泡剤としては、
粉体状に仕上げられたものが良く、使用に際して水に適
当な濃度に溶解し、この起泡剤水溶液を適当な発泡装置
で発泡させた水性気泡剤液を用いる。従来の蛋白質起泡
剤は濃度50％程度の水溶液として市販されているが、こ
のものは発泡力が弱く、また気泡自体の強度、すなわち
泡の持続性がないため、気泡コンクリートのように材料
を枠に流し込み静置して成形するものには使用できる
が、本発明で目的とする吹き付け施工では発泡層が得ら
れない。これに対して、粉体の蛋白質起泡剤を使用前に
液化、発泡させたものが、気泡自体強度があり泡の持続
力に優れていることから吹きつけても泡が壊れることが
なく、本発明の目的に使用できることを本発明者らは見
いだして本発明を完成した。The protein foaming agents used in the present invention include:
An aqueous foaming agent solution obtained by dissolving the foaming agent aqueous solution in a suitable concentration at the time of use and foaming the foaming agent aqueous solution by a suitable foaming device is used. Conventional protein foaming agents are commercially available as aqueous solutions with a concentration of about 50%. However, since these foams have low foaming power and lack the strength of bubbles themselves, that is, lack of sustainability of bubbles, materials such as cellular concrete are used. Although it can be used for molding by pouring into a frame and allowing it to stand, a foamed layer cannot be obtained by the spraying work intended in the present invention. On the other hand, the powdered protein foaming agent is liquefied and foamed before use, but the foam itself does not break even when sprayed because it has strong strength and excellent foam persistence, The present inventors have found that they can be used for the purpose of the present invention, and have completed the present invention.

【０００８】本発明に使用する蛋白質起泡剤としては、
本発明者らが先に見いだして特許出願したケラチン質蛋
白質起泡剤が特に好ましい。このケラチン蛋白質起泡剤
は、ケラチン蛋白質を分子量1000〜2000のポリペプタイ
ドにまで分解してなるものであり、特に羽毛を分子量10
00〜2000のポリペプタイドに加水分解した蛋白分解物か
らなるもので、この加水分解液をスプレー乾燥等の手段
によって乾燥し、粉体として得たものである。このよう
に粉体としたケラチン蛋白質起泡剤はケラチン特有の臭
気もなく、得られる気泡も強度あるものが得られる。The protein foaming agents used in the present invention include:
Keratin protein foaming agents, which the present inventors have previously found and filed for a patent, are particularly preferred. This keratin protein foaming agent is obtained by decomposing keratin protein to a polypeptide having a molecular weight of 1,000 to 2,000.
The hydrolyzed solution is composed of a protein hydrolyzate hydrolyzed to polypeptides of 00 to 2000, and is obtained as a powder by drying the hydrolyzed solution by means such as spray drying. The keratin protein foaming agent made into a powder as described above has no odor peculiar to keratin, and a strong foam can be obtained.

【０００９】ケラチン蛋白質はジスルフィド結合（−Ｓ
−Ｓ−）による網状結合を有するため分解が難しく、ま
た原料的にも、一定の品質のものが得にくいものである
が、本発明者らは、食用鶏加工場から大量に出る羽毛が
生育年数がほぼ一定であり、従って羽毛構成品質が一定
で且つ生育年数が若いため分解が容易であることに着目
して本発明に適する蛋白質起泡剤を得ることに成功し
た。本発明においてポリペプタイドの分子量が1000以下
のものは被膜強度、被膜形成能力が低いため、起泡力、
および泡の安定性の点で好ましくなく、分子量が2000以
上のものは発泡性が劣ることが経験的に認められた。The keratin protein has a disulfide bond (-S
-S-), it is difficult to decompose it because of the net-like bond, and it is difficult to obtain a product of a certain quality in terms of raw materials. The inventors have succeeded in obtaining a protein foaming agent suitable for the present invention, focusing on the fact that the number of years is almost constant, the feather composition quality is constant, and the growth is young, so that decomposition is easy. If the molecular weight of the polypeptide in the present invention is 1000 or less, the film strength, because the film forming ability is low, foaming power,
From the viewpoint of foam stability and foam stability, it was empirically recognized that foams having a molecular weight of 2,000 or more were inferior in foamability.

【００１０】原料としての羽毛はニワトリ、アヒル等種
々のものが考えられるが、原料の供給性や品質の一定性
の点から鶏卵生産場や食用鶏肉工場からのものがよく、
ブロイラーなどの１年以内の飼育されたニワトリの羽毛
がよい。原料の羽毛を分解する方法は、鶏肉処理工場か
ら連続的に出てくる良く水洗された羽毛を直接分解釜に
入れて行う。具体的には、原料羽毛に対し適正量のカセ
イソーダ、消石灰等のアルカリ剤を使用し、またシスチ
ン結合を切断するためのメルカプトエタノール、チオグ
リコール酸を添加し、更に亜硫酸水素ナトリウム、硫化
ナトリウム等の還元剤を加えて行うとよい。ケラチン蛋
白質の分解の場合、シスチン結合が切断された時に副生
されるチオール基、ビニール基、アルデヒド基等の二次
反応によって生成される極めて安定なランチオニンがア
ルカリ分解を著しく阻害するという説がある。本発明者
は研究の結果、ヒドラジン、ヒドロキシルアミン、ピペ
ラジン、メチルアミン類を複合反応防止剤として添加し
てアルデヒド基、チオール基群を不活性化するとアルカ
リ分解が速やかに行われることを知得した。Various feathers can be used as a raw material, such as chickens and ducks. From the viewpoint of the supply of raw materials and the uniformity of the quality, the raw material is preferably from a chicken egg production plant or an edible chicken factory.
Chicken feathers raised within one year, such as broilers, are good. The method of decomposing the raw material feathers is to put the well-washed feathers continuously coming out of the chicken processing plant directly into the decomposition pot. Specifically, an appropriate amount of alkaline agent such as caustic soda and slaked lime is used for the raw material feathers, and mercaptoethanol and thioglycolic acid for cutting cystine bonds are added, and further, sodium bisulfite, sodium sulfide, etc. It is advisable to add a reducing agent. In the case of keratin protein degradation, it is theorized that extremely stable lanthionine, which is produced by secondary reaction of thiol group, vinyl group, aldehyde group, etc. by-produced when the cystine bond is cleaved, significantly inhibits alkali decomposition. . As a result of research, the present inventor has found that alkali decomposition is rapidly performed when hydrazine, hydroxylamine, piperazine, and methylamines are added as a complex reaction inhibitor to inactivate aldehyde groups and thiol groups. .

【００１１】使用する薬品量は、経験的に一定の量が決
定される。分解条件は、作業性、経済性、品質の安定性
から、加圧釜中で 100℃〜 120℃で１時間位行うのが好
ましい。分解終了時で中和してpH7.0 とし、分解反応を
停止させる。この加水分解液をスプレー乾燥等の手段に
よって乾燥し、粉体として得る。得られた気泡剤は、特
にスプレードライした粉体状製品は、多孔質体であり、
溶解性、発泡性に優れ最も好ましい結果を与える。The amount of chemical used is determined empirically by a certain amount. The decomposition conditions are preferably performed in a pressure cooker at 100 ° C. to 120 ° C. for about 1 hour from the viewpoints of workability, economy and quality stability. At the end of decomposition, neutralize to pH 7.0 to stop the decomposition reaction. The hydrolyzed liquid is dried by a means such as spray drying to obtain a powder. The obtained foaming agent, especially the powder product spray-dried is a porous body,
It has excellent solubility and foaming properties and gives the most favorable results.

【００１２】蛋白質起泡剤は、通常水で溶解するが必要
に応じて、他の溶解促進剤などを加えてもよく、気泡安
定剤などを添加して発泡した水性気泡剤液に調製する。
耐火被覆部材と水性気泡剤液との混合は特に限定される
ことなく、通常のコンクリートミキサーなどによって行
うことができる。耐火被覆部材は形成する壁面によって
異なり、ロックウールを多くするとか、軽量骨材を多め
に使用するなど適当に調節することによって所望の遮音
性等を得ることができる。The protein foaming agent is usually dissolved in water, but if necessary, another dissolution promoter may be added. A foam stabilizer is added to prepare a foamed aqueous foaming agent solution.
Mixing of the refractory coating member and the aqueous foaming agent liquid is not particularly limited, and can be performed by a usual concrete mixer or the like. The fire-resistant covering member differs depending on the wall surface to be formed, and a desired sound insulation property or the like can be obtained by appropriately adjusting, for example, increasing the amount of rock wool or using a large amount of lightweight aggregate.

【００１３】[0013]

【実施例】以下本発明を実施例により説明するが、本発
明はこれらに限られるものではない。EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

【００１４】参考例 蛋白質起泡剤の製造 食用鶏工場からのニワトリの羽根１Kgを加圧釜に採取
し、水10Ｌ（リットル）を入れ、羽根中の油脂分を乳化
し薬品類の滲透をよくするため界面活性剤を入れてよく
攪拌する。ついで消石灰 100ｇ、亜硫酸水素ナトリウム
10ｇおよびヒドラジン10ｇを入れて 100℃〜 120℃で１
時間分解する。分解終了後、分解残渣と上澄液とを分離
したのち燐酸で pH7.0〜7.5 に中和する。中和液を濾過
して生じた燐酸カルシウムを除去し、濾液をスプレード
ライヤーにかけて粉末体に仕上げる。乾燥状態の鳥の羽
根の重量に対して約40重量％の量の粉末起泡剤を得る。REFERENCE EXAMPLE Production of Protein Foaming Agent 1 kg of chicken blades from an edible chicken factory is collected in a pressure cooker, and 10 L (liter) of water is added thereto. Therefore, add a surfactant and stir well. Then 100 g of slaked lime, sodium bisulfite
10 g and 10 g of hydrazine are added at 100 to 120 ° C.
Time resolved. After completion of the decomposition, the decomposition residue and the supernatant are separated, and then neutralized to pH 7.0 to 7.5 with phosphoric acid. The neutralized liquid is filtered to remove the generated calcium phosphate, and the filtrate is applied to a spray dryer to finish the powder. A powdered foaming agent is obtained in an amount of about 40% by weight, based on the weight of the dry bird wings.

【００１５】実施例１ 参考例で得た蛋白質起泡剤を使用し、これを３％の水溶
液とし発泡装置で発泡させて微細な気泡からなる水性気
泡剤液とした。この気泡剤液を下記の組成で耐火被覆部
材に配合して吹付け用耐火被覆材を得た。 組成： 市販耐火被覆部材 ２００Kg セメント ４０Kg 軽量骨材（ヒル石：粒径２〜３mm） ２００Kg 水 ２００Kg 水性気泡剤液 ２００Ｌ（リット
ル） 上記各成分を混合して耐火被覆材とする。なお、上記に
おいて市販耐火被覆部材の組成は次のとおり。 セメント ４Kg 石膏 ７Kg ロックウール ９Kg メチルセルローズ（ＭＣ） 適量 ミキサーに水２００Kgをとり、この中に順次市販耐火被
覆部材、セメント、ヒル石を加え、最後に水性気泡剤液
２００Ｌを加えて均一に混合してスラッジ状の吹付け用
耐火被覆材を調製する。このようにして得たスラッジ状
の耐火被覆材を液送りポンプとコンプレッサーを用いて
ホースにより間仕切り作成現場に送り、ホース先端のノ
ズルより噴出させて間仕切り壁を作成した。間仕切り部
には板を張りその板の表面に網目数ｍｍの金網を２〜３
枚重ねたものを支持材とし、この支持材を５０ｍｍの間
隔を開けて表裏２枚配置し、この金網面に前記耐火被覆
材を吹き付けた。吹付けは表裏両面に行った。吹き付け
られた耐火被覆材は、一日程度で乾燥固化し、軽量で強
度のある気泡耐火被覆材層が形成され、間仕切りが作成
された。得られた間仕切りは従来のコンクリートパネル
によるものに比べ、継ぎ目がなく、形成された耐火被覆
材層中に多数の微細な気泡が存在するため断熱性、遮音
性に優れていた。また間仕切りは、耐火被覆材層を設け
た支持材と支持材との間に空間があるため、断熱性、保
温性、遮音性等に優れていた。なお、得られた間仕切り
は耐火被覆材層の表面に適当な仕上げ用塗布材を塗布す
るとか、壁紙等の仕上げ用のシート材等を張って仕上げ
る。Example 1 The protein foaming agent obtained in the Reference Example was used, and a 3% aqueous solution was foamed by a foaming apparatus to obtain an aqueous foaming agent liquid comprising fine bubbles. This foaming agent liquid was blended into a fireproof coating member having the following composition to obtain a fireproof coating material for spraying. Composition: Commercial fire-resistant coating material 200 kg Cement 40 kg Light-weight aggregate (hillstone: particle size 2-3 mm) 200 kg water 200 kg water-based foaming agent liquid 200 L (liter) The above components are mixed to form a fire-resistant coating material. In the above, the composition of the commercially available refractory coating member is as follows. Cement 4Kg Gypsum 7Kg Rock wool 9Kg Methylcellulose (MC) Appropriate amount Take 200Kg of water into a mixer, add the commercially available refractory coating member, cement, and hill stone sequentially, and finally add 200L of aqueous foam agent liquid and mix uniformly. To prepare a sludge-like refractory coating for spraying. The sludge-like refractory coating material thus obtained was sent to a partition making site by a hose using a liquid feed pump and a compressor, and was ejected from a nozzle at the end of the hose to form a partition wall. A plate is placed on the partition, and a wire mesh with a mesh of several millimeters is placed on the surface of the plate.
The laminated material was used as a support material, and the support material was arranged on the front and back sides at an interval of 50 mm, and the refractory coating material was sprayed on the wire mesh surface. Spraying was performed on both sides. The sprayed refractory coating material was dried and solidified in about one day to form a lightweight and strong foam refractory coating material layer, thereby forming a partition. The obtained partition had no seams as compared with that of the conventional concrete panel, and was excellent in heat insulation and sound insulation due to the presence of many fine bubbles in the formed fireproof coating material layer. In addition, the partition had excellent heat insulation, heat insulation, sound insulation, and the like because there was a space between the support provided with the fire-resistant coating material layer and the support. The obtained partition is finished by applying an appropriate finishing coating material on the surface of the fire-resistant coating material layer or stretching a finishing sheet material such as wallpaper.

【００１６】実施例２ 市販耐火被覆部材 ２００Kg セメント ４０Kg 軽量骨材（ヒル石：粒径２〜３mm） １００Kg 水 ２００Kg 水性気泡剤液 ３００Ｌ（リット
ル） 上記各成分を混合してスラッジ状の耐火被覆材とする。
上記の耐火被覆材を実施例１と同様に支持材の金網面に
吹き付けて、間仕切りを作成した。本実施例は軽量骨材
を実施例１に比べ半分の量としたものであるが、この場
合でも形成された耐火被覆材層中に多数の微細な気泡が
存在するため強度的に優れたものが得られた。そのた
め、軽量骨材の量を減らすことができ経済的であるなど
の利点を有する。得られた間仕切りは良好な、断熱性、
遮音性等を示した。Example 2 Commercial fire-resistant coating material 200 kg Cement 40 kg Light-weight aggregate (hillstone: particle size 2-3 mm) 100 kg water 200 kg water-based foaming agent liquid 300 L (liter) The above components are mixed to form a sludge-like fire-resistant coating material. And
The refractory coating material was sprayed on the wire mesh surface of the support material in the same manner as in Example 1 to form a partition. In this embodiment, the amount of the lightweight aggregate is reduced to half that of the embodiment 1. However, even in this case, the strength is excellent due to the presence of a large number of fine bubbles in the formed refractory coating material layer. was gotten. Therefore, there is an advantage that the amount of lightweight aggregate can be reduced and the cost is low. The resulting partition has good insulation,
Sound insulation was shown.

【００１７】比較例 市販耐火被覆部材 ２００Kg セメント ４０Kg 軽量骨材（ヒル石：粒径２〜３mm） １００Kg 水 ３００Kg 上記各成分を混合してスラッジ状の耐火被覆材とする。
上記の耐火被覆材を実施例１と同様に支持材の金網面に
吹き付けて、間仕切りを作成した。本実施例は水性気泡
剤液を含まないため、スラッジ状の耐火被覆材は流動性
に乏しく吹きつけが困難であった。乾燥が遅くかつ得ら
れた耐火被覆材層はひび割れを生じていた。充分な耐熱
性、断熱性が得られなかった。COMPARATIVE EXAMPLE Commercial fire-resistant coating material 200 kg Cement 40 kg Light-weight aggregate (hillstone: particle size 2-3 mm) 100 kg water 300 kg The above components are mixed to form a sludge-like fire-resistant coating material.
The refractory coating material was sprayed on the wire mesh surface of the support material in the same manner as in Example 1 to form a partition. In this example, since the aqueous foaming agent liquid was not contained, the sludge-like refractory coating material had poor fluidity and was difficult to spray. Drying was slow and the resulting refractory coating layer had cracks. Sufficient heat resistance and heat insulation were not obtained.

【００１８】[0018]

【発明の効果】本発明の耐火被覆材によれば、吹付け作
業により気泡を含む軽量壁面が容易に作成できるため、
吹き付け作業をするための作業者が１名いるのみで広い
範囲、例えばビルなどの場合各階の間仕切りを容易に作
成することができる。しかも耐火被覆材はポンプでホー
スによって必要場所に圧送できるので、従来のコンクリ
ートパネルのようにクレーンで部材を作業現場に送るな
どの作業も必要ないなど作業上の利点をも有する。得ら
れた壁面は継ぎ目がないため、従来のパネル工法のよう
に継ぎ目を塞ぐ作業が不要であるだけでなく、断熱性、
遮音性に優れており、かつ形成された耐火被覆材層中に
多数の微細な気泡が存在するため断熱性、遮音性、耐火
性に優れているなど多くの利点を有する。According to the refractory coating material of the present invention, a lightweight wall surface including air bubbles can be easily formed by spraying.
In the case of a wide area, for example, a building or the like, a partition for each floor can be easily created with only one worker for spraying work. Moreover, since the refractory coating material can be pumped to a required place by a hose with a pump, there is also an advantage in work such as a work such as sending a member to a work site by a crane unlike a conventional concrete panel. Because the obtained wall has no seams, not only the work of closing the seams as in the conventional panel construction method is unnecessary, but also
It is excellent in sound insulation and has many advantages such as excellent heat insulation, sound insulation and fire resistance due to the presence of a large number of fine bubbles in the formed fireproof coating material layer.

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−126252（ＪＰ，Ａ) 特開 昭61−291474（ＪＰ，Ａ) 特開 昭62−216977（ＪＰ，Ａ) 特開 昭53−6491（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 41/00 - 41/72 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-126252 (JP, A) JP-A-61-291474 (JP, A) JP-A-62-216977 (JP, A) 6491 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) C04B 41/00-41/72

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 ニワトリ等の羽毛より得られたケラチン
蛋白質を分子量1000〜2000のポリペプタイドに分解し粉
体状に乾燥した蛋白分解物を、溶解し、発泡させた水性
起泡剤液を耐火被覆部材と混合してなることを特徴とす
る吹付け用耐火被覆材。1. Keratin obtained from feathers of chickens and the like.
Decomposes protein into 1000-2000 molecular weight polypeptide
A fire-resistant coating material for spraying, characterized by mixing an aqueous foaming agent liquid obtained by dissolving a body-dried protein hydrolyzate and foaming the mixture with a fire-resistant coating member. 【請求項２】 耐火被覆部材が石綿等の無機質繊維、セ
メントまたはモルタル、および軽量骨材等よりなること
を特徴とする請求項１記載の耐火被覆材。2. The fire-resistant covering material according to claim 1, wherein the fire-resistant covering member is made of inorganic fiber such as asbestos, cement or mortar, lightweight aggregate, or the like. 【請求項３】 ニワトリ等の羽毛より得られたケラチン
蛋白質を分子量1000〜2000のポリペプタイドに分解し粉
体状に乾燥した蛋白分解物を、溶解し、発泡させた水性
起泡剤液を、無機質繊維、セメントまたはモルタル、お
よび軽量骨材等よりなる耐火被覆部材と混合して適当な
流動性を有するスラッジとなし、該スラッジをノズルよ
り噴出させて目的とする施工面に吹付けることからなる
耐火被覆材の施工方法。3. Keratin obtained from feathers of chickens and the like.
Decomposes protein into 1000-2000 molecular weight polypeptide
An aqueous foaming agent solution obtained by dissolving a body-dried protein hydrolyzate, dissolving and foaming is mixed with a fire-resistant covering member made of inorganic fiber, cement or mortar, lightweight aggregate, etc., and has an appropriate fluidity. A method for constructing a refractory coating material, comprising forming sludge and spraying the sludge from a nozzle onto a target construction surface. 【請求項４】 施工面が金網等のラス材よりなることを
特徴とする請求項３記載の耐火被覆材の施工方法。 Claim 3 construction method for refractory dressing according to the construction surface is characterized by consisting of lath material such as wire mesh.
JP16865492A 1992-06-03 1992-06-03 Refractory coating material for spraying and its construction method Expired - Fee Related JP3357992B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16865492A JP3357992B2 (en) 1992-06-03 1992-06-03 Refractory coating material for spraying and its construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16865492A JP3357992B2 (en) 1992-06-03 1992-06-03 Refractory coating material for spraying and its construction method

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JPH06191967A JPH06191967A (en) 1994-07-12
JP3357992B2 true JP3357992B2 (en) 2002-12-16

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566482A1 (en) * 2004-02-19 2005-08-24 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Use of protein hydrolysate derived from keratin-containing material as a paper product additive

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