JPH04176950A - Fire resistant covering material - Google Patents
Fire resistant covering materialInfo
- Publication number
- JPH04176950A JPH04176950A JP2302616A JP30261690A JPH04176950A JP H04176950 A JPH04176950 A JP H04176950A JP 2302616 A JP2302616 A JP 2302616A JP 30261690 A JP30261690 A JP 30261690A JP H04176950 A JPH04176950 A JP H04176950A
- Authority
- JP
- Japan
- Prior art keywords
- portland cement
- sodium silicate
- fireproof coating
- water
- coating material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 28
- 230000009970 fire resistant effect Effects 0.000 title description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 230000001070 adhesive effect Effects 0.000 claims abstract description 14
- 239000011507 gypsum plaster Substances 0.000 claims abstract description 13
- 239000011398 Portland cement Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 9
- 239000011490 mineral wool Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims description 35
- 239000011248 coating agent Substances 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 238000002156 mixing Methods 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000015271 coagulation Effects 0.000 abstract description 2
- 238000005345 coagulation Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 12
- 239000004568 cement Substances 0.000 description 10
- 239000010440 gypsum Substances 0.000 description 6
- 229910052602 gypsum Inorganic materials 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000006255 coating slurry Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010998 test method Methods 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
- 239000013585 weight reducing agent Substances 0.000 description 1
- -1 with admixtures Substances 0.000 description 1
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Landscapes
- Building Environments (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、各種鉄骨建築物の梁や柱などに耐火性被覆を
形成するための、湿式吹き付け用耐火被覆材に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wet-sprayed fire-resistant coating material for forming fire-resistant coatings on beams, columns, etc. of various steel buildings.
〔従来の技術）
各種建築物の鉄骨部分に吹き付け工法により耐火性被覆
を施すことは広く行われている。そのために用いられる
被覆材としては、−切の原料をあらかじめ水と混合して
ペースト状にしたものを吹き付ける湿式吹き付けによる
施工が可能なものが、粉塵飛散による環境悪化が無く、
作業性も良いので、有利である。[Prior Art] It is widely practiced to apply fire-resistant coatings to the steel frames of various buildings by spraying methods. The coating material used for this purpose is one that can be applied by wet spraying, in which a paste is prepared by mixing raw materials with water in advance, and there is no environmental deterioration due to the scattering of dust.
It is advantageous because it has good workability.
湿式吹き付け用耐火被覆材の代表的な例は特公昭５０−
２４９７３号公報に記載されていて、その組成は次のと
おりである。A typical example of fireproof coating material for wet spraying is
It is described in Japanese Patent No. 24973, and its composition is as follows.
ロックウール ２０〜７５重量％水硬性無
機接着剤 ２５〜６０ 〃界面活性剤
０．１〜１．０〃増粘剤
０ 、１−１．０ ／／このほかに、軽量化を目的とし
てバーミキュライト、パーライト等の軽量骨材が配合さ
れることもある。Rock wool 20-75% by weight Hydraulic inorganic adhesive 25-60 Surfactant
0.1~1.0〃Thickener
0, 1-1.0 // In addition, lightweight aggregates such as vermiculite and perlite may be blended for the purpose of weight reduction.
水硬性無機接着剤としてはポルトランドセメント、アル
ミナセメント、高炉セメント、石膏、石膏プラスター（
ＪＩＳ Ａ６９０４）などが使われる。Hydraulic inorganic adhesives include portland cement, alumina cement, blast furnace cement, gypsum, gypsum plaster (
JIS A6904) etc. are used.
これら従来の耐火被覆材は、建築物の鉄骨組立て゛終了
後に鉄骨表面に吹き付けられ、その後、約２４時間を要
して硬化するのが普通であった。These conventional fire-resistant coatings are typically sprayed onto the steel surface of a building after the steel frame has been erected, and then hardened over approximately 24 hours.
一方、工場あるいは建築現場の近辺において、組立て前
の鉄骨表面に耐火被覆を施してしまい、耐火被覆処理済
みの鉄骨を用いて組立てを行う耐火被覆先付け工法が近
年開発され（たとえば特開昭６１−９８８４１号）、高
所作業が減少し工期短縮が可能になるなどの利点が注目
されている。On the other hand, in the vicinity of factories or construction sites, a fireproof coating pre-installation method has been developed in recent years, in which a fireproof coating is applied to the surface of the steel frame before assembly, and the assembly is performed using the steel frame that has been treated with the fireproof coating (for example, No. 98841), the benefits of reducing work at heights and shortening the construction period are attracting attention.
しかしながら、耐火被覆先付け工法の場合、被覆材を吹
き付けたあと狭い作業場内での硬化にあまり長時間を費
やすことはできず、速やかに輸送および組立てが可能に
なることが望まれるから、吹き付け後は３時間前後で高
い付着強度と表面強度を発現して運搬、組立ての取扱い
に耐える耐火被覆を形成できる材料であることが必要で
ある。しかしながら、鉄骨組立て後に吹き付けを行うこ
とを前提として作られた従来の湿式吹き付け用耐火被覆
材は、耐火被覆先付け工法に使用するには硬化が遅すぎ
、したがって、それを使ったのでは先付け工法の特長を
十分に生かすことができない。However, in the case of the pre-applied fireproof coating method, it is not possible to spend too much time curing the coating material in a narrow workshop after spraying, and it is desirable to be able to transport and assemble it quickly. It is necessary that the material develops high adhesion strength and surface strength in around 3 hours and can form a fireproof coating that can withstand handling during transportation and assembly. However, conventional wet-sprayed fireproof coatings, which were made with the assumption that they would be sprayed after steel frame assembly, cured too slowly to be used in pre-applied fireproof coating methods. Unable to make full use of its features.
水硬性無機接着剤としてセメントを用いる場合において
セメントを急速硬化型のものに変えたりセメント硬化促
進剤を併用することによって吹き付け後の硬化を速める
試みは、まだ成功していない。これは、セメントと併用
される石膏がセメントの硬化を遅延させるため、セメン
ト単味の場合のように簡単には硬化時間が短くならない
からである（セメントだけでは鉄骨に対する初期付着力
が不足し、フチ施工性も悪く、しかも乾燥収縮率が大き
く被覆層にクラックを生じ易い。When using cement as a hydraulic inorganic adhesive, attempts to speed up the curing after spraying by changing the cement to a rapid curing type or using a cement curing accelerator together have not yet succeeded. This is because gypsum used in combination with cement delays the hardening of cement, so the hardening time cannot be shortened as easily as with cement alone (cement alone lacks the initial adhesion to the steel frame, The edge workability is also poor, and the drying shrinkage rate is large, making it easy for cracks to occur in the coating layer.
石膏の併用はこれらの問題点を解決するのに有効である
。）。The combined use of plaster is effective in solving these problems. ).
いうまでもなく、吹き付け後の硬化は速くなりさえすれ
ばよいわけではなく、吹き付け材料を水と混合したのち
ポンプによる圧送を行なって吹き付けるには最低３０分
程度の流動性保持時間を確保することが必要であり、ま
た、好適硬化特性への調整は耐火被覆材として必要な性
能の劣化を招くことなしに達成されなければならないが
、これも容易には解決できない課題であった。Needless to say, it is not enough just to cure quickly after spraying, but after mixing the spraying material with water, it is necessary to ensure fluidity retention time of at least 30 minutes before spraying by pumping. In addition, adjustment to suitable curing characteristics must be achieved without deteriorating the performance required as a fire-resistant coating material, but this has also been a problem that cannot be easily solved.
そこで本発明は、先付け工法に適した物性と硬化特性を
有し、Ｍ終的に形成される耐火被覆の性能の点でも優れ
た耐火被覆材を提供し、先付け工法の特長を十分生かす
ことを可能にしようとするものである。Therefore, the present invention aims to provide a fire-resistant coating material that has physical properties and hardening properties suitable for the pre-installation method and is also excellent in terms of the performance of the fire-resistant coating that is ultimately formed. It attempts to make it possible.
上記目的を達成した本発明が提供する耐火被覆材は、ロ
ックウール、水硬性無機接着剤および水を主材としてな
る湿式吹き付け用耐火被覆材において、水硬性無４１Ｉ
接着剤として、ポルトランドセメントおよび該ポルトラ
ンドセメント１００重量部あたり１００〜３００重量部
の、凝結始発時間が１０〜５０分に調節された石膏プラ
スターを併用したことを特徴とする。The fire-resistant coating material provided by the present invention that achieves the above object is a fire-resistant coating material for wet spraying mainly composed of rock wool, a hydraulic inorganic adhesive, and water.
It is characterized in that, as an adhesive, Portland cement and gypsum plaster of 100 to 300 parts by weight per 100 parts by weight of the Portland cement and whose initial setting time is adjusted to 10 to 50 minutes are used together.
上述のような組成の水硬性無機接着剤を採用したことに
より、本発明の耐火被覆材は先付け工法に最適の硬化特
性を有し、吹き付け作業性や耐火性においても十分な性
能を示す。By employing a hydraulic inorganic adhesive having the composition as described above, the fireproof coating material of the present invention has optimal curing characteristics for pre-applied construction methods, and exhibits sufficient performance in terms of spray workability and fire resistance.
本発明の耐火被覆材において最も特徴的な成分は、凝結
始発時間が１０〜５０分に調節された石膏プラスターで
ある。公知の耐火被覆材に使用されている石膏系材料は
、水と混ぜると即時硬化を開始する焼石膏か、凝結の始
発が１時間以上の、左官工事用石膏プラスター（ＪＩＳ
Ａ６９０４；焼石膏を主原料とし、これに混和材、
増粘剤、凝結遅延剤等を適宜混入したもの）である。Ｊ
ＩＳ規格外の、凝結始発が１０〜５０分の石膏プラスタ
ーは、普通には市販されていない。しかしながら、この
ような石膏プラスターは、凝結開始が普通の石膏プラス
ターよりも若干速くなるよう凝結遅延剤等の助剤配合比
が調節されているだけであって、成分上は普通の石膏プ
ラスターと特に異なるものではない。早期凝結性の石膏
プラスターをポルトランドセメントの等量以上使用する
ことにより、耐火被覆材全体の凝結性はもっばら石膏プ
ラスターの凝結特性および配合比に依存するようになる
。The most characteristic component of the fireproof coating material of the present invention is gypsum plaster whose initial setting time is adjusted to 10 to 50 minutes. The gypsum-based materials used in known fireproof covering materials are either calcined gypsum, which starts hardening immediately when mixed with water, or gypsum plaster for plastering (JIS), which starts setting for more than 1 hour.
A6904; Main raw material is calcined gypsum, with admixtures,
thickeners, setting retarders, etc.). J
Gypsum plasters that do not meet IS standards and have a setting time of 10 to 50 minutes are not commonly commercially available. However, in this type of gypsum plaster, the blending ratio of auxiliary agents such as setting retarders is adjusted so that the setting start time is slightly faster than that of ordinary gypsum plaster, and the composition of such gypsum plaster is particularly different from that of ordinary gypsum plaster. It's not different. By using early-setting gypsum plaster in an amount equal to or greater than that of Portland cement, the setting properties of the entire fireproof coating become largely dependent on the setting properties and blending ratio of the gypsum plaster.
ポルトランドセメントとしては普通ポルトランドセメン
トを用いる。Ordinary Portland cement is used as the Portland cement.
本発明においては、水硬性無機接着剤にさらにケイ酸ソ
ーダを含有させることができる。配合されｔ；ケイ酸ソ
ーダは、耐火被覆材の初期凝結性にはあまり影響しない
が、凝結後、短時間に強度を発現させるのに役立つ。用
いるケイ酸ソーダは、溶液状のものでも粉末状のもので
もよいが、粉末状ケイ酸ソーダのほうが、他の材料との
混合が容易であり、また、混合後さらに水を加えて混練
したとき徐々に溶けて硬化を促進するのでポンプ圧送に
必要な初期流動性を確保するのに有利である。好適配合
量は、全固形分あたり３〜５重量％（粉末ケイ酸ソーダ
３号換算量）である。In the present invention, the hydraulic inorganic adhesive can further contain sodium silicate. Sodium silicate does not significantly affect the initial setting of the fireproof coating, but it helps develop strength in a short period of time after setting. The sodium silicate used may be in the form of a solution or powder, but powdered sodium silicate is easier to mix with other materials, and when kneaded by adding water after mixing. Since it gradually melts and accelerates hardening, it is advantageous in securing the initial fluidity necessary for pumping. The preferred blending amount is 3 to 5% by weight based on the total solid content (in terms of powdered sodium silicate No. 3).
これらの成分を上述の比率で併用するが、水と混合した
後の凝結性は温度の影響をかなり受けるので、最適配合
比は使用温度における予備的な実験の結果に基づき決定
することが望ましい。これにより、口７クウールなど他
の耐火被覆材構成成分および水と混合した後の吹き付け
に必要な流動性を少なくとも３０分間確保する一方、お
よそ３時間後には鉄骨組立てのだめの通常の取扱いに耐
える強度を発現させることができる。These components are used in combination at the above-mentioned ratio, but since the coagulation properties after mixing with water are considerably affected by temperature, it is desirable to determine the optimum blending ratio based on the results of preliminary experiments at the operating temperature. This ensures the necessary fluidity for spraying after mixing with water and other fireproofing components such as Quul for at least 30 minutes, while providing strength to withstand normal handling of the steel assembly after approximately 3 hours. can be expressed.
水硬性無機接着剤が上述の成分からなるものであること
を除けば、本発明の耐火被覆材の他の構成成分の種類お
よび配合比は特に限定されるものではなく、従来のこの
種耐火被覆材のそれと同様に、任意に選定することがで
きる。しかしながら、本発明が特定する上述のような無
機接着剤と組み合わせる耐火被覆材構成成分として特に
好ましいものを示すと次のとおりである（数値は全固形
分に対する重量％）。Except that the hydraulic inorganic adhesive is composed of the above-mentioned components, the types and compounding ratios of the other constituent components of the fireproof coating material of the present invention are not particularly limited. As with the material, it can be selected arbitrarily. However, the following are particularly preferable constituent components of the fireproof coating material to be combined with the above-mentioned inorganic adhesive specified by the present invention (the numerical values are weight % based on the total solid content).
ロックウール ２０〜３０％界面活性剤（起
泡剤） ０．１〜０．３％増粘剤
０．３〜０．５％水
１１０〜１３０％本発明の耐火被覆材は、水を含む全成
分を混練してスラリー状にした後、湿式吹き付けの常法
により、組立て前の鉄骨の表面に吹き付けることができ
る。Rock wool 20-30% surfactant (foaming agent) 0.1-0.3% thickener
0.3-0.5% water
110 to 130% The fireproof coating material of the present invention can be sprayed onto the surface of a steel frame before assembly by a conventional wet spraying method after kneading all components including water into a slurry.
なお、本発明の耐火被覆材は耐火被覆材先付け工法に使
用するのが最も適当なものであるが、用途はそれに限定
されるものではない。たとえば、吹き付け材の長距離ポ
ンプ圧送を行わない場合には、早期凝結性が吹き付け作
業上障害にならないので、耐火被覆後付け工法において
も使用可能なものである。The fireproof coating material of the present invention is most suitable for use in the fireproof coating pre-applying method, but its use is not limited thereto. For example, if the sprayed material is not pumped over long distances, the early setting does not pose an obstacle to the spraying operation, so it can also be used in the post-installation method of fireproof coating.
〔実施例〕
以下、実施例を示して本発明を説明する。なお、６例に
おいて、凝結・硬化特性の試験はＪＩＳＲ２５０６ｒ耐
火モルタルのちょう度試験方法」に従って針進入度を測
定することにより行なった。この試験において、３０分
後の針進入度は約２０ｍ１以上であることがポンプ圧送
に必要な流動性を確保する上で必要であり、また針進入
度が３１以下になれば、鉄骨組立ての取り扱いに耐える
強度を発現しているといえる。[Example] The present invention will be described below with reference to Examples. In 6 examples, the setting and hardening characteristics were tested by measuring the needle penetration according to JISR 2506r Refractory Mortar Consistency Test Method. In this test, the needle penetration after 30 minutes must be approximately 20 m1 or more to ensure the fluidity necessary for pumping, and if the needle penetration is 31 or less, it is necessary to handle the steel frame assembly. It can be said that it has developed the strength to withstand.
実施例１〜３
種々の原料配合と温度条件で耐火被覆材スラリーを調製
し、その凝結特性を調べた。結果を表１に示す。Examples 1 to 3 Fireproof coating slurries were prepared using various raw material formulations and temperature conditions, and their setting characteristics were investigated. The results are shown in Table 1.
比較例１〜５
原料配合を表２のとおり変更したほかは実施例１〜３と
同様にして耐火被覆材スラリーを調製し、その凝結・硬
化特性を調べた。なお、温度は２５℃とし、また比較例
２だけはポルトランドセメントに替えて超早強セメント
・ジェットセメント（小野田セメント株式会社製品）を
用いた。Comparative Examples 1 to 5 Fireproof coating slurries were prepared in the same manner as Examples 1 to 3, except that the raw material formulations were changed as shown in Table 2, and their setting and hardening characteristics were examined. The temperature was 25° C., and only in Comparative Example 2, ultra-early strength cement jet cement (manufactured by Onoda Cement Co., Ltd.) was used instead of Portland cement.
結果を表２に併せて示す。The results are also shown in Table 2.
表１
表２
〔発明の効果〕
上述のように、本発明の耐火被覆材は先付け工法に必要
な早期強度発現性に優れ、しかも十分な初期流動性と耐
火性性能を備えているから、これを用いることにより耐
火被覆先付け工法の特長を従来より以上に生かして能率
的かつ安全な耐火被覆形成が可能になる。Table 1 Table 2 [Effects of the Invention] As mentioned above, the fireproof coating material of the present invention has excellent early strength development required for the pre-installation method, as well as sufficient initial fluidity and fire resistance performance. By using this method, it is possible to form fireproof coatings efficiently and safely by taking advantage of the features of the pre-applied fireproof coating method more than ever before.
Claims (3)
としてなる湿式吹き付け用耐火被覆材において、水硬性
無機接着剤がポルトランドセメントおよび該ポルトラン
ドセメント１００重量部あたり１００〜３００重量部の
、凝結始発時間が１０〜５０分に調節された石膏プラス
ターからなることを特徴とする耐火被覆材。(1) In a wet-sprayed fireproof coating material mainly composed of rock wool, a hydraulic inorganic adhesive, and water, the hydraulic inorganic adhesive is set in Portland cement and in an amount of 100 to 300 parts by weight per 100 parts by weight of the Portland cement. A fireproof covering material comprising gypsum plaster whose starting time is adjusted to 10 to 50 minutes.
るものである請求項１記載の耐火被覆材。(2) The fireproof coating material according to claim 1, wherein the hydraulic inorganic adhesive further contains sodium silicate.
を含有する請求項２記載の耐火被覆材。(3) The fireproof coating material according to claim 2, containing 3 to 5% by weight of powdered sodium silicate based on the total solid content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2302616A JPH07122322B2 (en) | 1990-11-09 | 1990-11-09 | Fireproof coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2302616A JPH07122322B2 (en) | 1990-11-09 | 1990-11-09 | Fireproof coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04176950A true JPH04176950A (en) | 1992-06-24 |
| JPH07122322B2 JPH07122322B2 (en) | 1995-12-25 |
Family
ID=17911129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2302616A Expired - Fee Related JPH07122322B2 (en) | 1990-11-09 | 1990-11-09 | Fireproof coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07122322B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020128306A (en) * | 2019-02-07 | 2020-08-27 | 太平洋マテリアル株式会社 | Fiber-spraying binder and fiber-spraying material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5024973A (en) * | 1973-06-29 | 1975-03-17 | ||
| JPS539825A (en) * | 1976-07-14 | 1978-01-28 | Sekisui Plastics | Production of lighfweight concrete |
| JPS6367110U (en) * | 1986-10-22 | 1988-05-06 |
-
1990
- 1990-11-09 JP JP2302616A patent/JPH07122322B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5024973A (en) * | 1973-06-29 | 1975-03-17 | ||
| JPS539825A (en) * | 1976-07-14 | 1978-01-28 | Sekisui Plastics | Production of lighfweight concrete |
| JPS6367110U (en) * | 1986-10-22 | 1988-05-06 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020128306A (en) * | 2019-02-07 | 2020-08-27 | 太平洋マテリアル株式会社 | Fiber-spraying binder and fiber-spraying material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07122322B2 (en) | 1995-12-25 |
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