JPH0676262B2 - Fireproof coating method for steel frame structure - Google Patents
Fireproof coating method for steel frame structureInfo
- Publication number
- JPH0676262B2 JPH0676262B2 JP61064625A JP6462586A JPH0676262B2 JP H0676262 B2 JPH0676262 B2 JP H0676262B2 JP 61064625 A JP61064625 A JP 61064625A JP 6462586 A JP6462586 A JP 6462586A JP H0676262 B2 JPH0676262 B2 JP H0676262B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- coating method
- fireproof coating
- frame structure
- 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 - Lifetime
Links
- 238000000576 coating method Methods 0.000 title claims description 12
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- 150000003863 ammonium salts Chemical class 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 150000002505 iron Chemical class 0.000 claims description 3
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000010451 perlite Substances 0.000 description 6
- 235000019362 perlite Nutrition 0.000 description 6
- 239000010425 asbestos Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、鉄骨による建造物を火災などから保護するた
めの耐火被覆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 fireproof coating method for protecting a steel structure from a fire or the like.
従来技術 一般に、鉄骨建造物の火災時における安全性を確保する
ための耐火被覆方法は、石綿とセメントの混合物に水を
加えて混練したもの、或は、石綿を酢酸ビニールなどの
エマルジョン中に分散せたものなどを、吹付機などによ
って、柱や梁の表面に一定の厚さに塗着することにより
断熱層を形成する方法が一般的に行なわれている。しか
し、石綿はじん肺症の原因となり、又発癌性を有するた
め、作業者や住居者の健康に悪影響を及ぼすものとし
て、その使用が制限される傾向にある。又石綿の断熱性
を保存するためには、塗着性を犠牲にせざるを得ず、吹
付塗着の場合には、うまく鋼材の表面に付着しないこと
と、振動により剥離しやすいといった欠点があり、作業
性が悪かった。石綿を用いない方法としては、セメン
ト，軽量骨材及び水との混練物或はこれに更に塩化カル
シウムを硬化促進剤として加えたもの等を鋼材表面に吹
き付ける方法も開示されているが、鋼材との接着性の点
で改善すべき不満があった。BACKGROUND ART Generally, a fireproof coating method for ensuring safety in the case of a fire of a steel frame structure is a method in which water is mixed and kneaded in a mixture of asbestos and cement, or asbestos is dispersed in an emulsion such as vinyl acetate. A method of forming a heat insulating layer by applying the heat-insulated material or the like to the surface of a pillar or a beam with a constant thickness by a spraying machine or the like is generally performed. However, asbestos causes pneumoconiosis and has carcinogenicity, and its use tends to be restricted because it adversely affects the health of workers and residents. In addition, in order to preserve the heat insulating property of asbestos, there is no choice but to sacrifice the coating property, and in the case of spray coating, there are drawbacks that it does not adhere well to the surface of the steel material and it easily peels off due to vibration. , Workability was poor. As a method that does not use asbestos, a method of spraying cement, a lightweight aggregate and a kneaded material with water, or a material to which calcium chloride is further added as a hardening accelerator to the surface of the steel material is also disclosed. There was dissatisfaction that should be improved in terms of adhesiveness.
発明の目的 本発明は、このような事情に対処してなされたものであ
って、耐火性の高い無機材料のみによって構成され、し
かも、断熱性、塗着性及び強度とに優れた耐火被覆構造
を形成する方法を開示することを目的とするものであ
る。OBJECT OF THE INVENTION The present invention has been made in view of such circumstances, and is made of only an inorganic material having high fire resistance, and has a fireproof coating structure excellent in heat insulation, coating property and strength. It is intended to disclose a method of forming.
発明の構成 本発明の要旨は、火山砂、膨張スラグ、発泡パーライ
ト、発泡ひる石などの軽量骨材とセメントとの混合物
に、塩化カルシウム100重量部、鉄塩２〜15重量部、カ
リウム塩１〜９重量部、アンモニウム塩0.3〜５重量部
の塩類の水溶液を加えて混練することにより泥状物と
し、これを鉄骨構造体に塗着して固化することを特徴と
する鉄骨構造体の耐火被覆方法にある。以下、軽量骨材
として、パーライトを用いた例に基づいて詳細に説明す
る。Composition of the Invention The gist of the present invention is to add 100 parts by weight of calcium chloride, 2 to 15 parts by weight of iron salt, 1 part of potassium salt to a mixture of cement with lightweight aggregate such as volcanic sand, expanded slag, expanded perlite, and expanded vermiculite. ~ 9 parts by weight, ammonium salt 0.3 to 5 parts by weight of an aqueous solution of a salt is added and kneaded to form a mud, which is applied to a steel structure to be solidified, and thus the fire resistance of the steel structure. It is in the coating method. Hereinafter, a detailed description will be given based on an example using perlite as the lightweight aggregate.
軽量骨材としての発泡パーライトの使用量は、その粒径
にもよるが、セメント１重量部に対して、0.5〜2.0重量
部位の範囲が適当である。このような配合の発泡パーラ
イトとセメントとの混合物に、塩化カルシウム100重量
部、鉄塩２〜15重量部、カリ塩１〜９重量部、アンモニ
ウム0.3〜５重量部の範囲で溶存する水溶液を加えて、
混練し、塗着するのに適当な、適度な粘度、流動性をも
った泥状物を作る。上述の鉄塩としては、硫酸第一鉄及
び第二鉄など、カリ塩としては、塩化カリ、炭酸カリ、
硫酸カリなど、また、アンモニウム塩としては、硫酸ア
ンモニウム、塩化アンモニウム、炭酸アンモニウムなど
のアンモニウム塩をそれぞれ上げる事ができる。このよ
うにして得られた泥状物を、スラリーポンプ、圧縮空気
などを用いた吹付機によってＨ鋼や円筒パイプなどから
成る柱や梁の表面に塗着するか若しくは、こて塗りなど
により塗着する。The amount of expanded perlite used as a lightweight aggregate depends on the particle size, but is preferably within the range of 0.5 to 2.0 parts by weight with respect to 1 part by weight of cement. To the mixture of expanded perlite and cement having such a composition, an aqueous solution dissolved in a range of 100 parts by weight of calcium chloride, 2 to 15 parts by weight of iron salt, 1 to 9 parts by weight of potassium salt, and 0.3 to 5 parts by weight of ammonium is added. hand,
A mud having an appropriate viscosity and fluidity suitable for kneading and coating is prepared. The above iron salts include ferrous sulfate and ferric iron, and the potassium salts include potassium chloride, potassium carbonate,
Potassium sulfate and the like, and as ammonium salts, ammonium salts such as ammonium sulfate, ammonium chloride and ammonium carbonate can be used. The mud-like material thus obtained is applied to the surface of a pillar or beam made of H steel or a cylindrical pipe by a spraying machine using a slurry pump or compressed air, or by troweling. To wear.
塗着方法により、又形成すべき被覆層の厚さによって
も、その濃度，使用量は異なるが、溶存質量対水の重量
の比率が1:10〜25程度の濃度の溶液を用いて泥状物を作
ることにより、十分な接着性と強度とが得られる。Although the concentration and the amount used vary depending on the coating method and the thickness of the coating layer to be formed, a solution with a concentration ratio of dissolved mass to water of about 1:10 to 25 is used to form a mud. By making a product, sufficient adhesion and strength can be obtained.
効果 本願方法に使用されるセメント混練物は、特に、接着性
と接着強度に優れ、これによって形成される耐火被覆構
造は、すべて、無機質から構成されているので、熱分割
によって有毒ガスが発生することがなく、耐火性にすぐ
れている。更に発泡パーライトなどの粒度を適当に選択
すれば、接着性、断熱性の幅を広く選択する事ができ、
作業性，接着性，強度等を、塗着すべき対象の形状，場
所等に応じて、塗着方法を任意に調節して、施工するこ
とが可能で、従来塗着の困難であった円柱にも容易に塗
着することができる。Effect The cement kneaded product used in the method of the present application is particularly excellent in adhesiveness and adhesive strength, and since the fireproof coating structure formed by this is all composed of an inorganic substance, toxic gas is generated by heat division. And has excellent fire resistance. Furthermore, if the particle size of foamed perlite is properly selected, it is possible to select a wide range of adhesiveness and heat insulation,
The workability, adhesiveness, strength, etc. can be adjusted by arbitrarily adjusting the coating method according to the shape, location, etc. of the object to be coated. It can also be applied easily.
以下に、本発明の更に深い理解の為に、実施例を掲げ
る。Examples will be given below for a deeper understanding of the present invention.
［実施例］ ポルトランドセメント1kg、パーライト（東邦パーライ
ト株式会社製、NO.F8）0.6kgの混合物に、塩化カルシウ
ム10kg、硫酸第一鉄0.4kg、炭酸カリウム0.2kg、塩化ア
ンモニウム0.1kgを水220リットルに溶解し得られた混和
剤を加えて混練し、流動性のある泥状物とし、これを鋼
材表面に塗着して、厚さ4cm（嵩比重0.4kg/リット
ル），圧縮強度12kg/cm2）の防火被覆層を形成した。本
被覆層を1000℃前後で30分位加熱したが、表面にガラス
状物の形成をみたのみで内部に変化はなかった。[Example] In a mixture of 1 kg of Portland cement and 0.6 kg of perlite (manufactured by Toho Perlite Co., NO.F8), 10 kg of calcium chloride, 0.4 kg of ferrous sulfate, 0.2 kg of potassium carbonate, 0.1 kg of ammonium chloride and 220 liters of water Was added to the mixture and kneaded to form a fluid mud, which was applied to the steel surface and had a thickness of 4 cm (bulk specific gravity 0.4 kg / liter), compressive strength 12 kg / cm. The fireproof coating layer of 2 ) was formed. This coating layer was heated at about 1000 ° C for about 30 minutes, but only the formation of glassy material was observed on the surface and there was no change inside.
Claims (1)
ルシウム100重量部、鉄塩２〜15重量部、カリウム塩１
〜９重量部、アンモニウム塩0.3〜５重量部の塩類の水
溶液を加えて混練することにより泥状物とし、これを鉄
骨構造体に塗着して固化することを特徴とする鉄骨構造
体の耐火被覆方法。1. A mixture of lightweight aggregate and cement, wherein 100 parts by weight of calcium chloride, 2 to 15 parts by weight of iron salt and 1 part of potassium salt are added.
~ 9 parts by weight, ammonium salt 0.3 to 5 parts by weight of an aqueous solution of a salt is added and kneaded to form a mud, which is applied to a steel structure to be solidified, and thus the fire resistance of the steel structure. Coating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61064625A JPH0676262B2 (en) | 1986-03-22 | 1986-03-22 | Fireproof coating method for steel frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61064625A JPH0676262B2 (en) | 1986-03-22 | 1986-03-22 | Fireproof coating method for steel frame structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62223075A JPS62223075A (en) | 1987-10-01 |
| JPH0676262B2 true JPH0676262B2 (en) | 1994-09-28 |
Family
ID=13263622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61064625A Expired - Lifetime JPH0676262B2 (en) | 1986-03-22 | 1986-03-22 | Fireproof coating method for steel frame structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0676262B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5882740A (en) * | 1989-03-17 | 1999-03-16 | Ishizuka Research Institute Ltd. | Method of producing diamond of controlled quality and product produced thereby |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51142017A (en) * | 1975-06-02 | 1976-12-07 | Taiyou Fukushi Kk | Adiabatic substance and method of its manufacture |
| JPS5423937A (en) * | 1977-07-22 | 1979-02-22 | Toshiba Ray O Vac | Alkaline cell |
-
1986
- 1986-03-22 JP JP61064625A patent/JPH0676262B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62223075A (en) | 1987-10-01 |
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