JPS63273692A - Fiberproofing material - Google Patents
Fiberproofing materialInfo
- Publication number
- JPS63273692A JPS63273692A JP62107741A JP10774187A JPS63273692A JP S63273692 A JPS63273692 A JP S63273692A JP 62107741 A JP62107741 A JP 62107741A JP 10774187 A JP10774187 A JP 10774187A JP S63273692 A JPS63273692 A JP S63273692A
- Authority
- JP
- Japan
- Prior art keywords
- fireproofing
- borax
- binder
- cable
- fire
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000004079 fireproofing Methods 0.000 claims abstract description 29
- 229910021538 borax Inorganic materials 0.000 claims abstract description 19
- 239000004328 sodium tetraborate Substances 0.000 claims abstract description 19
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- 239000003063 flame retardant Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 2
- 239000011490 mineral wool Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 5
- 239000011398 Portland cement Substances 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000010451 perlite Substances 0.000 abstract description 3
- 235000019362 perlite Nutrition 0.000 abstract description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004571 lime Substances 0.000 abstract description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 2
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 2
- 239000010453 quartz Substances 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract 1
- 239000010436 fluorite Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 15
- 230000002265 prevention Effects 0.000 description 9
- 230000035515 penetration Effects 0.000 description 8
- 230000005484 gravity Effects 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 4
- 229910052918 calcium silicate Inorganic materials 0.000 description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910001730 borate mineral Inorganic materials 0.000 description 1
- 239000010429 borate mineral Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Fireproofing Substances (AREA)
- Installation Of Indoor Wiring (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、火災の延焼防止性能に優れた防火材に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a fireproofing material with excellent fire prevention performance.
［従来の技術］
火災事故対策は社会問題としてクローズアップされてお
り、建材、各種プラスチック製品、電気機器などの難燃
化と防災対策の一層の促進が望まれている。電線・ケー
ブル分野では各種被覆材料の難燃化の研究、防火塗料、
防火パテ、防火テープ、防火シートの開発等の防災対策
が検討され各方面において実用に供されているが、これ
らの防火材に加えてさらに高性能の防火材の出現が期待
されている。例えば、ビル内等の床、壁のケーブル貫通
部はケーブルの延焼による火災の拡大を阻止するため十
分な防災シールを施す必要があり、ビル等防火措置に適
用される建築基準法施行令第１１２条第１５項および第
１２９条の２第１項第７号に規定するものと同等以上の
防火性能を有する防火措置工法を（財）日本建築センタ
ーで評定している。[Prior Art] Measures against fire accidents are attracting attention as a social issue, and there is a desire to make building materials, various plastic products, electrical equipment, etc. flame retardant and to further promote disaster prevention measures. In the field of electric wires and cables, we conduct research on flame retardant coating materials, fire retardant paints,
Disaster prevention measures such as the development of fireproof putty, fireproof tape, and fireproof sheets have been studied and put into practical use in various fields, but in addition to these fireproofing materials, even higher performance fireproofing materials are expected to emerge. For example, in order to prevent the spread of fire due to the spread of cables, it is necessary to apply sufficient disaster prevention seals to cable penetrations on floors and walls inside buildings, etc., and Building Standards Act Enforcement Ordinance 112, which applies to fire prevention measures for buildings, etc. The Building Center of Japan has evaluated fire prevention construction methods that have fire prevention performance equal to or higher than those stipulated in Article 15 and Article 129-2, Paragraph 1, Item 7.
従来評定を受けている工法では、ケーブルに塗布する防
、火塗料、耐火仕切板（石綿ケイ酸カルシウム板）、耐
火充填材（ロックウール材）、防火パテを組み合わせる
ことにより２時間耐火試験に合格する性能が得られてい
る。The method that has been evaluated previously passes the 2-hour fire resistance test by combining fireproof paint applied to the cable, fireproof partition plate (asbestos calcium silicate board), fireproof filler (rock wool material), and fireproof putty. performance has been achieved.
［発明が解決しようとする問題点］
しかし、上記のような防火材では、ケーブル延焼防止用
の防火塗料の場合、防火性能上非常に有効である反面に
おいて所要厚さの塗布作業の実施が煩雑であり、乾燥の
ための工事時間の延長の問題がある。耐火充填材として
のロックウール材は、比重０．１５〜０．２程度で、断
熱性能に優れているものの、ケーブルの使用時には通電
により発生する熱の放散が妨げられるため、貫通部のケ
ーブル温度が異常に上昇しやす（、また、火災時には貫
通部の火災側の熱がケーブル導体を伝導して裏面側のケ
ーブル被覆の温度を上昇させ溶融、燃焼に至らしめるこ
とに対して十分な抑制効果を発揮しない。すなわち、ケ
ーブル貫通部の耐火充填材としては、火災の熱に耐える
と同時に積極的に熱を吸収して放熱する性能に優れた防
火材が望ましく、特にケーブル防火塗料を塗布する作業
を省略しても従来工法と同等以下の防災シールの厚さで
２時間以上の耐火試験に合格する防火材が望まれている
。なお、耐火仕切板としての石綿ケイ酸カルシウム板は
、ロックウール材よりも放熱性に若干すぐれているが、
吸熱して火災の熱を冷却する効果は不十分である。[Problems to be Solved by the Invention] However, in the case of fireproofing materials such as those mentioned above, in the case of fireproofing paints for preventing the spread of fire on cables, although they are very effective in terms of fireproofing performance, it is difficult to apply the coating to the required thickness. Therefore, there is a problem of extending the construction time for drying. Rock wool material used as a fireproof filler has a specific gravity of about 0.15 to 0.2 and has excellent heat insulation performance, but when the cable is used, it prevents the dissipation of heat generated by energization, so the cable temperature at the penetration part decreases. (In addition, in the event of a fire, the heat on the fire side of the penetration part is conducted through the cable conductor and increases the temperature of the cable sheath on the back side, leading to melting and combustion.) In other words, as a fireproof filler for cable penetrations, it is desirable to use a fireproofing material that can withstand the heat of a fire and at the same time actively absorbs and dissipates heat, especially when applying cable fireproofing paint. There is a need for a fireproofing material that can pass a fire resistance test for more than 2 hours with a disaster prevention seal thickness that is equal to or less than that of the conventional construction method even if the asbestos calcium silicate board used as a fireproof partition plate is Although it has slightly better heat dissipation than wood,
The effect of absorbing heat and cooling the heat of the fire is insufficient.
本発明は上記した従来技術の問題点を解消するもので、
放熱性と火災時の熱の吸収性に優れ温度上昇を抑制する
効果が大きい防火材の提供を目的とするものである。The present invention solves the problems of the prior art described above.
The object of the present invention is to provide a fireproofing material that has excellent heat dissipation properties and heat absorption properties in the event of a fire, and is highly effective in suppressing temperature rise.
［問題点を解決するための手段］
本発明の防火材は、ホウ砂を主体とする無機粉末を結合
剤により結合してなることを特徴とするものである。[Means for Solving the Problems] The fireproofing material of the present invention is characterized in that it is made by bonding inorganic powder mainly composed of borax with a binder.
ホウ砂は、Ｎ ａ、Ｂ２Ｏ，・１０Ｈ２０で表わされる
含水ホウ酸塩鉱物であり、真比重１，７１５で、無色ま
たは白色の粉末として工業的に生産されており、加熱さ
れると結晶水を徐々に放出し、３５０〜４００°Ｃで無
水物となり、更に約８８０℃で融解してガラス状となる
性質を持っている。ホウ砂はその組成上約４７％の結晶
水を持っており、これが火災時の熱により蒸発放出され
、その際蒸発潜熱を周囲から奪うことにより温度上昇を
抑える効果が太き（、高温ではガラス化するため防火材
として有利に作用することになる。Borax is a hydrous borate mineral represented by Na, B2O, .10H20, and has a true specific gravity of 1,715. It is industrially produced as a colorless or white powder, and when heated, it releases crystallization water. It has the property of being gradually released, becoming anhydrous at 350 to 400°C, and further melting and becoming glassy at about 880°C. Due to its composition, borax has about 47% crystallized water, which is evaporated and released by the heat of a fire, and at this time, it has a strong effect of suppressing temperature rise by taking away the latent heat of evaporation from the surroundings (at high temperatures, glass , so it acts advantageously as a fireproofing material.
本発明において、ホウ砂を主体とする無機粉末は、ホウ
砂単独、あるいはこれに他の無機粉末を併用したものを
いい、ホウ砂以外の無機粉末としては、水和アルミナＣ
Ａ１．Ｏ，・３Ｈ２０）、水酸化マグネシウム、（Ｍｇ
（ＯＨ）ｓ）、ボウ硝（ＮａｉｓＯｎ −１０Ｈ！Ｏ）
、結晶セラコラ（ＣａＳ０４・２Ｈ２０）、結晶ソーダ
（Ｎａ２ＣＯ３・ｌ０ＬＯ）等の含水塩無機粉末、天然
砂、石英粉、石灰石粉、タルク、クレー等の通常の無機
粉末、蛭石、パーライト等の軽量化骨材等があげられる
。ホウ砂を主体とする無機粉末におけるホウ砂の含有割
合は５０重量％以上とすることが好ましく、これを下回
るようになると優れた耐火性能が発揮されに（くなる。In the present invention, inorganic powder mainly composed of borax refers to borax alone or in combination with other inorganic powders, and inorganic powders other than borax include hydrated alumina C
A1. O, ・3H20), magnesium hydroxide, (Mg
(OH)s), NaisOn -10H!O
, crystalline ceracola (CaS04・2H20), crystalline soda (Na2CO3・10LO), and other hydrated salt inorganic powders, natural sand, quartz powder, limestone powder, talc, clay, and other normal inorganic powders, vermiculite, perlite, etc., for lighter weight. Examples include aggregate. It is preferable that the content of borax in the inorganic powder mainly composed of borax is 50% by weight or more, and if it is less than this, excellent fire resistance performance will not be exhibited.
上記したホウ砂を主体とした無機粉末は高温で焼成する
ことな（結合剤により所定形状に成形される。結合剤と
しては、無機質のセメントまたは有機質の接着剤といっ
たものがある。セメントとしては水で練ったとき硬化性
を示すポルトランドセメント、石灰、セラコラ等の各種
無機質接合材があげられる。有機質の接着剤としては、
合成樹脂エマルション、合成樹脂溶液、無溶剤の液状熱
硬化性樹脂（不飽和ポリエステル樹脂、エポキシ樹脂、
ウレタン樹脂等）があげられる。The above-mentioned inorganic powder mainly composed of borax is not fired at high temperatures (it is molded into a predetermined shape with a binder. Binders include inorganic cement or organic adhesives. Various inorganic adhesives include Portland cement, lime, and Ceracola, which exhibit hardening properties when kneaded with organic adhesives.
Synthetic resin emulsion, synthetic resin solution, solvent-free liquid thermosetting resin (unsaturated polyester resin, epoxy resin,
(urethane resin, etc.).
ホウ砂を主体とする無機粉末と結合剤の配合割合は、そ
の種類、目的とする用途、性能に応じて変更可能であり
、ホウ砂を主体とする無機粉末６０〜９８重量％、結合
剤４０〜２重量％の範囲で配合することが好ましい。結
合剤の使用量が少ない場合は防火材の機械的強度が低（
なる傾向を示し、多い場合、特に有機質の接着剤を使用
する場合は発煙量が増加し、防火性能上不利となる。The blending ratio of the inorganic powder mainly composed of borax and the binder can be changed depending on the type, intended use, and performance. It is preferable to blend in a range of 2% by weight. If the amount of binder used is small, the mechanical strength of the fireproofing material will be low (
If there is a large amount, especially if an organic adhesive is used, the amount of smoke generated will increase, which is disadvantageous in terms of fire prevention performance.
［発明の実施例コ
実施例１
ホウ砂８０重量％、結合剤としてアクリル系合成樹脂エ
マルション（樹脂分４５％）２０重量％を混合し、型に
充填して室温で１０日間放置することにより厚さ５０
ｒｒ） ｍ 、幅および長さが各々５００ ｍ ｍの防
火材を製造した。・
この防火材は、ホウ砂の嵩比重（約１．０）が小さいこ
と、およびホウ砂と結合剤の合成樹脂エマルジョンとの
混合時の空気の抱き込み、結合剤中の水分の乾燥に伴な
い、比重が０．７と小さく、また鋸で容易に切断加工で
きた。[Example 1 of the Invention] 80% by weight of borax and 20% by weight of acrylic synthetic resin emulsion (resin content: 45%) as a binder were mixed, filled into a mold, and left at room temperature for 10 days. Sa 50
rr) m, width and length of 500 mm each were produced.・This fireproofing material is made of borax due to its small bulk specific gravity (approximately 1.0), the entrapment of air when borax is mixed with the synthetic resin emulsion of the binder, and the drying of moisture in the binder. It has a low specific gravity of 0.7, and can be easily cut with a saw.
上記防火材の耐火性能を試験するためケーブル貫通部を
組み立て、耐火試験を行った。第１図は、耐火試験炉の
上部に貫通部を形成した状態の説明図であり、開口面積
４００Ｘ５００ｍｍの貫通部に導体断面積３２５ ｍ
ｍ２のＣＶケーブル３本撚合せたケーブルｌを３組貫通
させ、各種防火材を用いてシールした構造となっている
。なお、２はケーブルラック、３は防火パテ、４ａ、
４ｂは石綿ケイ酸カルシウム板、５は本発明による防火
材、６はロックウール、７は炉壁、８はリボンバーナで
ある。In order to test the fireproof performance of the above fireproofing material, a cable penetration part was assembled and a fireproof test was conducted. Fig. 1 is an explanatory diagram of a state in which a penetration part is formed in the upper part of a refractory test furnace.
It has a structure in which three sets of cables L, each consisting of three m2 CV cables twisted together, are passed through and sealed using various fireproof materials. In addition, 2 is a cable rack, 3 is fireproof putty, 4a,
4b is an asbestos calcium silicate plate, 5 is a fireproof material according to the present invention, 6 is rock wool, 7 is a furnace wall, and 8 is a ribbon burner.
リボンバーナ８に点火してＪＩＳＡ１３０４の規定に準
じて２時間の耐火試験を行ったところ、耐火試験中のケ
ーブル被覆の燃焼に伴なう廃煙量は少なく、２時間の耐
火試験経過時の裏面側のケーブル表面（図中のＡ点）温
度は２８０℃であった。試験後解体してケーブル被覆の
損傷状況を調べると、ロックウール６充填部分までのケ
ーブル被覆が焼失して導体のみとなっているのに対し、
防火材５に接していた部分の被覆は残存していた。When the ribbon burner 8 was ignited and a 2-hour fire resistance test was conducted in accordance with the regulations of JISA1304, the amount of waste smoke accompanying the combustion of the cable sheath during the fire resistance test was small, and the back side after the 2-hour fire resistance test was completed. The temperature of the side cable surface (point A in the figure) was 280°C. When the cable was dismantled after the test and the damage to the cable sheathing was examined, it was found that the cable sheath up to the area filled with Rock Wool 6 had been burnt down and only the conductor remained.
The coating on the part that was in contact with the fireproofing material 5 remained.
実施例２
ホウ砂７３重量％、結合剤としてポルトランドセメント
１５重量％、パーライト粉２重量％、水１０重量％を混
合して型に充填し、室温でＩＯ日間放置することにより
厚さ５０ ｍ ｍ 、幅および長さが各々５００ ｍ
ｍの防火材を製造した。Example 2 A mixture of 73% by weight of borax, 15% by weight of Portland cement as a binder, 2% by weight of perlite powder, and 10% by weight of water was filled into a mold and left at room temperature for IO days to form a mold with a thickness of 50 mm. , width and length each 500 m
m fireproofing materials were manufactured.
この防火材の比重は０．８であり、また鋸で容易に切断
できた。This fireproofing material had a specific gravity of 0.8 and could be easily cut with a saw.
この防火材を用いて実施例１と同様にして貫通部を組み
立て、２時間の耐火試験を行った。２時間経過後の裏面
側のケーブル表面（図中のＡ点）温度は２７０℃であっ
た。試験後の解体によるケーブル被覆の損傷状況の調査
結果は実施例１の場合と同様であった。A penetrating portion was assembled using this fireproofing material in the same manner as in Example 1, and a 2-hour fire resistance test was conducted. After 2 hours had passed, the temperature of the cable surface on the back side (point A in the figure) was 270°C. The results of the investigation of damage to the cable sheathing due to disassembly after the test were the same as in Example 1.
比較例
本発明の防火材を使用せず、ロックウールのみを石綿ケ
イ酸カルシウム板４ａ、 ４ｂの間に充填した以外は実
施例１と同様にして耐火試験を行った。Comparative Example A fire resistance test was conducted in the same manner as in Example 1, except that the fireproofing material of the present invention was not used and only rock wool was filled between the asbestos calcium silicate plates 4a and 4b.
耐火試験中のケーブル被覆の燃焼に伴なう発煙量は実施
例１．２に比べて多く、２時間の耐火試験経過時の裏面
側のケーブル表面（図中のＡ点）温度は３３０℃であり
、実施例１，２に比べると５０〜６０℃高くなったいた
。試験後解体してケーブル被覆の損傷状況を調べると、
ロックウールに接触していたケーブル被覆は焼失して金
属導体のみとなっていた。The amount of smoke generated due to the combustion of the cable coating during the fire resistance test was greater than in Example 1.2, and the temperature of the cable surface on the back side (point A in the figure) at the end of the 2-hour fire resistance test was 330°C. The temperature was 50 to 60°C higher than in Examples 1 and 2. After the test, the cable was disassembled and the damage to the cable sheathing was examined.
The cable sheathing that had been in contact with the rock wool had been burned away, leaving only the metal conductor.
［発明の効果］
実施例および比較例の説明から明らかなように、本発明
の防火材は従来のロックウールに比べて良好な吸熱、放
熱効果を有することから極めて優れた耐火性能発揮する
。[Effects of the Invention] As is clear from the description of Examples and Comparative Examples, the fireproofing material of the present invention exhibits extremely excellent fireproofing performance because it has better heat absorption and heat radiation effects than conventional rock wool.
本発明の防火材は、電線・ケーブルの貫通部のみならず
、鉄鋼の耐火被覆、建築用防火壁等にも応用可能であり
、産業上の利用価値は極めて大きい。The fireproof material of the present invention can be applied not only to the penetration parts of electric wires and cables, but also to fireproof coatings of steel, fireproof walls for buildings, etc., and has extremely high industrial utility value.
第１図は、本発明の防火材を用いた貫通部の構成例およ
び耐火試験方法の説明図である。
ｌ二ケーブル ２：ケーブルラック３：防火パ
テFIG. 1 is an explanatory diagram of a configuration example of a penetration part using the fireproofing material of the present invention and a fire resistance test method. l2 cable 2: Cable rack 3: Fire protection putty
Claims (4)
してなることを特徴とする防火材。(1) A fire retardant material characterized by being made by binding inorganic powder mainly composed of borax with a binder.
ントである特許請求の範囲第１項記載の防火材。(2) The fireproofing material according to claim 1, wherein the binder is a cement that exhibits hardening properties when mixed with water.
範囲第１項記載の防火材。(3) The fireproofing material according to claim 1, wherein the binder is an organic adhesive.
と結合剤が４０〜２重量％の割合で配合されている特許
請求の範囲第１項記載の防火材。(4) 60-98% by weight of inorganic powder mainly composed of borax
The fire retardant material according to claim 1, wherein the fire retardant material is blended with a binder in a proportion of 40 to 2% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62107741A JPS63273692A (en) | 1987-04-30 | 1987-04-30 | Fiberproofing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62107741A JPS63273692A (en) | 1987-04-30 | 1987-04-30 | Fiberproofing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63273692A true JPS63273692A (en) | 1988-11-10 |
Family
ID=14466779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62107741A Pending JPS63273692A (en) | 1987-04-30 | 1987-04-30 | Fiberproofing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63273692A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06271367A (en) * | 1993-03-16 | 1994-09-27 | Kowa Kagaku Kogyo Kk | Fireproof coating material |
| GB2495847A (en) * | 2011-10-19 | 2013-04-24 | Firespray Internat Ltd | A fire insulation material |
| CN105145071A (en) * | 2015-09-06 | 2015-12-16 | 广西壮族自治区药用植物园 | Cutting propagation method of brucea javanica |
-
1987
- 1987-04-30 JP JP62107741A patent/JPS63273692A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06271367A (en) * | 1993-03-16 | 1994-09-27 | Kowa Kagaku Kogyo Kk | Fireproof coating material |
| GB2495847A (en) * | 2011-10-19 | 2013-04-24 | Firespray Internat Ltd | A fire insulation material |
| WO2013057496A3 (en) * | 2011-10-19 | 2013-07-04 | Firespray International Limited | A fire insulation material |
| GB2495847B (en) * | 2011-10-19 | 2014-11-12 | Firespray Internat Ltd | A fire insulation material |
| US11066603B2 (en) | 2011-10-19 | 2021-07-20 | Firespray International Limited | Fire insulation material |
| US11674085B2 (en) | 2011-10-19 | 2023-06-13 | Firespray International Limited | Fire insulation material |
| CN105145071A (en) * | 2015-09-06 | 2015-12-16 | 广西壮族自治区药用植物园 | Cutting propagation method of brucea javanica |
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