JPH02229880A - Composition for sprayed asbestos removal and removal of sprayed asbestos using same - Google Patents
Composition for sprayed asbestos removal and removal of sprayed asbestos using sameInfo
- Publication number
- JPH02229880A JPH02229880A JP1306089A JP30608989A JPH02229880A JP H02229880 A JPH02229880 A JP H02229880A JP 1306089 A JP1306089 A JP 1306089A JP 30608989 A JP30608989 A JP 30608989A JP H02229880 A JPH02229880 A JP H02229880A
- Authority
- JP
- Japan
- Prior art keywords
- asbestos
- glucomannan
- hydrate
- removal
- sprayed
- 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
- 239000010425 asbestos Substances 0.000 title claims abstract description 74
- 229910052895 riebeckite Inorganic materials 0.000 title claims abstract description 74
- 239000000203 mixture Substances 0.000 title claims abstract description 11
- 229920002581 Glucomannan Polymers 0.000 claims abstract description 50
- 229940046240 glucomannan Drugs 0.000 claims abstract description 49
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 19
- 239000004480 active ingredient Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 229920002752 Konjac Polymers 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 235000010485 konjac Nutrition 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 3
- 238000001879 gelation Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 19
- 239000000499 gel Substances 0.000 description 10
- 239000002699 waste material Substances 0.000 description 7
- 244000247812 Amorphophallus rivieri Species 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 235000001206 Amorphophallus rivieri Nutrition 0.000 description 4
- 239000012670 alkaline solution Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000252 konjac Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920000057 Mannan Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002671 adjuvant Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- CTXGTHVAWRBISV-UHFFFAOYSA-N 2-hydroxyethyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCCO CTXGTHVAWRBISV-UHFFFAOYSA-N 0.000 description 1
- 101100283604 Caenorhabditis elegans pigk-1 gene Proteins 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010027406 Mesothelioma Diseases 0.000 description 1
- 235000008708 Morus alba Nutrition 0.000 description 1
- 240000000249 Morus alba Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- -1 glucomannan hydrates Chemical class 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
- Processing Of Solid Wastes (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
Description
【発明の詳細な説明】
［産業．Ｅの利用分野］
本発明は、グルコマンナンによる吹き付けアスベストの
除去用組成物及び吹き付けアスベストの除去方法に関す
る。[Detailed description of the invention] [Industry. Field of Application of E] The present invention relates to a composition for removing sprayed asbestos using glucomannan and a method for removing sprayed asbestos.
［従来の技術及び発明が解決しようとする課題］アスベ
ストは、耐熱性、難燃性、耐摩耗性、電気絶縁性、耐薬
品性などに優れているために、建築用の断熱材、耐火材
、防音材として例えば小中学校の教室の天井に吹き付け
られたり、あるいは防音材、耐熱材、保温材として車両
に吹き付けられたりしてきた。[Prior art and problems to be solved by the invention] Asbestos has excellent heat resistance, flame retardancy, abrasion resistance, electrical insulation, and chemical resistance, so it is used as a heat insulating material and fireproof material for buildings. For example, it has been sprayed on the ceilings of elementary and junior high school classrooms as a soundproofing material, and on vehicles as a soundproofing, heat-resistant, and heat-insulating material.
しかしながら、アスベストの粉塵は姉がん・中皮腫の原
因となると考えられており、そのため代替品の開発とも
相伴って近年建造物、車両などに一旦吹き付けられたア
スベストを除去することが行なわれるようになった。因
みに、アスベストを除去された建造物は解体されずに内
装を新しくするなどしてそのまま使用される。同じく、
車両も吹き付けアスベストを除去し、部品交換や補修を
した後継続使用される。However, asbestos dust is thought to be a cause of cancer, mesothelioma, and as a result, along with the development of alternative products, efforts have been made in recent years to remove asbestos that has been sprayed onto buildings, vehicles, etc. It became so. Incidentally, buildings from which asbestos has been removed are not demolished and are used as-is with new interiors. Similarly,
Vehicles will continue to be used after spraying asbestos has been removed and parts replaced or repaired.
問題は、吹き付けアスベスト除去の際にアスベストの粉
塵が工事現場の大気中に飛散し、労働環境中のアスベス
ト粉ａＳ度を高め、惹いては作業者の健康問題を生ずる
。又《建造物解体、艦船工事などから発生したアスベス
ト廃棄物が廃棄物処理業者の手でずさんに処理され、す
なわち、廃棄物処理場に運ばれ、アスベストを含む粉塵
を飛散させながら投棄される結果、当該作業者ならびに
周辺一般住民の健康を害することになる。The problem is that when asbestos is removed by spraying, asbestos dust is scattered into the atmosphere at the construction site, increasing the level of asbestos dust in the working environment, which in turn causes health problems for workers. Furthermore, asbestos waste generated from building demolition, ship construction, etc. is sloppily disposed of by waste disposal companies, which means that it is transported to waste disposal sites and dumped while scattering asbestos-containing dust. , it will harm the health of the workers and the surrounding general population.
このような粉塵飛散、特にアスベスト粉塵による環境汚
染を防止する目的で、薬剤の散布等の試みがなされてい
る．しかしながら、吹付けアスベストの除去時又はアス
ベスト廃棄物の処理時のアスベスト粉塵の発生、更には
建造物、申両などから除去したアスベストの処理時の２
次乃至は３次粉塵発生に対しても有効であり、安全性、
安定性、経済性においても満足できるアスベストの粉塵
飛散防止作用の顕著な吹き付けアスベスト除去用組成物
及び吹き付けアスベスト除去方法は未だ充分には開発さ
れていない状況にある。In order to prevent environmental pollution caused by such dust scattering, especially asbestos dust, attempts have been made to spray chemicals. However, asbestos dust is generated when sprayed asbestos is removed or asbestos waste is disposed of, and furthermore, asbestos dust is generated when asbestos removed from buildings, buildings, etc.
It is also effective against secondary and tertiary dust generation, ensuring safety and
A composition for spraying asbestos removal and a method for spraying asbestos removal that have a remarkable effect of preventing asbestos dust scattering and are satisfactory in terms of stability and economy have not yet been sufficiently developed.
［課題を解決するための手段］
本発明者は上記一連の問題点を解消するために鋭意研究
を重ねｌこ結果、グルコマンナンの特性を活用すること
により、安全性、安定性、経済性等を総合的に満足する
アスベスト含有粉塵飛散防止作用の顕著な吹き付けアス
ベスト除去用組成物及び吹き付けアスベスト除去方法を
提供できるとの知見に到った。[Means for Solving the Problems] In order to solve the above-mentioned series of problems, the present inventor has conducted extensive research and found that by utilizing the properties of glucomannan, safety, stability, economic efficiency, etc. It has been discovered that it is possible to provide a sprayed asbestos removal composition and a sprayed asbestos removal method that have a remarkable effect of preventing scattering of asbestos-containing dust that comprehensively satisfies the following.
本発明は、かかる知見に基づき完成したものであり、即
ち、有効成分としてグルコマンナンを含有する吹き付け
アスベスト除去用組成物及びグルコマンナン水和物を接
触させる吹き付けアスベストの除去方法で、本発明によ
れば吹き付けアスベストの除去時又はアスベスト廃棄物
の処理時におけるアスベストの粉塵飛散が防止される。The present invention has been completed based on this knowledge, and is a method for removing sprayed asbestos in which a composition for removing sprayed asbestos containing glucomannan as an active ingredient and glucomannan hydrate are brought into contact with each other. This prevents the scattering of asbestos dust during the removal of sprayed asbestos or the disposal of asbestos waste.
グルコマンナンは例えばこんにゃく芋の球茎中に粘液状
のマンナン粒子として存在する。現代のこんにゃく原料
（粉体）は、マンナン粒子を特殊な工程を経て純粋な形
で取出したものである。グルコマンナンを水にｌＩ潤し
た水和物は、Ｃａ（０１−１）２．Ｎａ２Ｃ０３，Ｎａ
ＨＰＯ４．ＮａＨＣ０３．ＮａＯＨなどのアルカリ
性化合物で不可逆的に凝固して弾性ゲルを形成する。ま
た、該永和物は加熱すると凝固が早まる。これらのアル
カリ性化合物を凝固剤と呼ぶ。前記弾性ゲルの食用こん
にゃくは、凡そ９７％が水分である。即ら、本発明の方
法は、約４０倍量もの水分を包括してなお粘弾性の凝固
物を形成するグルコマンナンの特性を活用し、吹き付け
アスベストを除去すべき建造物、車両などやアスベスト
廃棄物にグルコマンナンの水和物を使用して粉塵飛散を
防止するものである。このような目的より、本発明にお
いては、コンニャク粉、コンニャク精粉等、不純物の混
在の有無を問わずすべてのグルコマンナンが使用可能で
ある。Glucomannan exists, for example, in the corm of konjac potato as mucilage-like mannan particles. Modern konjac raw materials (powder) are mannan particles extracted in pure form through a special process. The hydrate obtained by moistening glucomannan with water is Ca(01-1)2. Na2C03,Na
HPO4. NaHC03. It coagulates irreversibly with alkaline compounds such as NaOH to form an elastic gel. Further, when the permanent product is heated, solidification is accelerated. These alkaline compounds are called coagulants. The elastic gel edible konnyaku is approximately 97% water. In other words, the method of the present invention takes advantage of the property of glucomannan, which can contain about 40 times the amount of water and still form a viscoelastic coagulum. This product uses glucomannan hydrate to prevent dust from scattering. For this purpose, in the present invention, all glucomannans, such as konjac flour and konjac flour, can be used regardless of the presence or absence of impurities.
本発明の方法を実施する際必須となるのはグルコ冫ンナ
ン及び水である。又、アスベスト材によってはアルカリ
性化合物も必要となる。Gluconinnan and water are essential when carrying out the method of the present invention. Also, depending on the asbestos material, an alkaline compound is also required.
グルコマンナンは予め水と混合し、水和物の形態で使用
する方法が好ましい。グルコマンナンを水和鞠で使用す
る場合のグルコマンナン濃度は、特別の制限はないが、
通常０，１〜２ｗハ％程度が適当であるが、アスベスト
が建造物に例えばセメントーアスベスト材の形で使用さ
れている場合には、濃度によっては除去すべきセメント
ーアスベスト材との接触によりグルコマンナン水和物が
セメントーアスベスト材の表面でゲル化し、内部迄浸透
し難いことから、グルコマンナン濃度が約０．５Ｗ／Ｖ
％程度の水和物の使用が好ましい。It is preferable to mix glucomannan with water in advance and use it in the form of a hydrate. There are no particular restrictions on the glucomannan concentration when using glucomannan in hydration balls, but
Normally, about 0.1 to 2w% is appropriate, but if asbestos is used in a building in the form of cement-asbestos material, depending on the concentration, contact with the cement-asbestos material to be removed may result. Glucomannan hydrate gels on the surface of the cement-asbestos material and is difficult to penetrate into the interior, so the glucomannan concentration is approximately 0.5 W/V.
% of the hydrate is preferred.
吹き付けアスベストの除去に際してのグルコマンナン水
和物の使用は、具体的には、例えば以下の如き方法によ
る。すなわち、除去すべきアスベスト材層の内部に予め
グル］マンナン水和物を注入し、更に、必要に応じ吹き
つけ等の方法ぐアスベスト拐層の表面をグルコマンナン
水和物でコーティングし、その後ケレン棒による剥ぎ落
し等の方法でアスベストを除去する。この際、必要に応
じてグルコマンナンがゲル化するようにｐＨを調整する
。Specifically, glucomannan hydrate is used in the removal of sprayed asbestos, for example, by the following method. That is, glucomannan hydrate is injected into the asbestos material layer to be removed in advance, and if necessary, the surface of the asbestos removal layer is coated with glucomannan hydrate by spraying or other methods. Remove asbestos by scraping it off with a stick, etc. At this time, the pH is adjusted as necessary so that glucomannan gels.
吹き付けアスベストの除去の際、アスベスト材層に対し
グルコマンナン水和物を添加することにより該添加した
グルコマンナン水和物がゲル化し、粉塵の発生を抑止し
、或いは発生した粉塵が飛散するのを防止することがで
きる。When removing sprayed asbestos, by adding glucomannan hydrate to the asbestos material layer, the added glucomannan hydrate gels, suppressing the generation of dust, or preventing the generated dust from scattering. It can be prevented.
先にグルコマンナン水和物は、必要に応じてグルコマン
ナンがゲル化するようにｐＨを調整すると述べた。ＤＨ
１４整が不要な場合とは除去すべき対象吹き付けアスベ
スト自体がアルカリ建材で構成されている（例えば、セ
メントーアスベスト材等のような石灰使用物）場合であ
り、或いは、グルコマンナン水和物自体のｐＨは調整せ
ずに、除去すべきアスベスト材層に予めアルカリ溶液を
注入する、グルコマンナン水和物とアルカリ溶液を併用
して噴７Ａ１る、グルコマンナン水和物を注入、噴霧等
した後アルカリ溶液を注入、噴霧、塗布する等の場合が
挙げられる。いずれにしても、建造物、車両などから吹
き付けアスベストを除去する際に、グルコマンナン水和
物がゲル化するような条件下でＥ）Ｈを調整すればよい
。なお、グルコマンナン水和物をゲル化するようにｐＨ
を調整する例は実施例２にある。It was previously stated that the pH of glucomannan hydrate is adjusted as necessary so that glucomannan gels. DH
Cases in which the sprayed asbestos to be removed is composed of alkaline building materials (for example, lime-based materials such as cement-asbestos materials), or glucomannan hydrate itself is not required. Injecting an alkaline solution into the asbestos material layer to be removed in advance without adjusting the pH of the material, spraying glucomannan hydrate and an alkaline solution together, or after injecting or spraying glucomannan hydrate, etc. Examples include injecting, spraying, and coating an alkaline solution. In any case, E)H may be adjusted under conditions such that glucomannan hydrate gels when sprayed asbestos is removed from buildings, vehicles, etc. In addition, the pH is adjusted to gel the glucomannan hydrate.
An example of adjusting is given in Example 2.
アスベスト廃棄物の処理に際してのグルコマンナン水和
物の使用は、例えばアスベスト廃棄物にグルコマンナン
水和物及び必要に応じてアルカリ溶液を併用して噴霧し
ながら梱包し、産業廃東物として処理する。When treating asbestos waste, glucomannan hydrate can be used, for example, by spraying the asbestos waste with glucomannan hydrate and, if necessary, an alkaline solution while packaging it and disposing of it as industrial waste. .
尚、グルコマンナン水和物には、他の補助剤を３有せし
めてもよく、このような補助剤の例としては、従来の粉
塵飛散防止用桑剤（ Ｂ Ｗ Ｅ ５０００等）、界面
活性剤（ボリ１チレングリコールモノラウレート等）、
消臭剤等が挙げられるが、本発明の目的とする効果が妨
げられない限り、特にその補助剤の種類等に制限はない
。また、本発明方法と、従来の薬剤液をアスベスト内部
に浸潤した後固化結精する方法等の技術を併用可能なこ
とはいうまでもない。The glucomannan hydrate may contain other adjuvants. Examples of such adjuvants include conventional mulberry agents for preventing dust scattering (BWE 5000, etc.), surfactants, etc. agents (poly-1 ethylene glycol monolaurate, etc.),
Examples include deodorants, but there are no particular restrictions on the type of adjuvant, as long as the desired effects of the present invention are not hindered. It goes without saying that the method of the present invention can be used in combination with conventional techniques such as a method of infiltrating the inside of asbestos with a chemical solution and then solidifying the asbestos.
以下、実施例により本発明を更に説明する。The present invention will be further explained below with reference to Examples.
１ 吹き けアスベストの除去組成物）一コンニャク粉
（２０〜６０メッシュ）ＩＢｇを耐湿性の紙袋に入れ、
密封した。1. Blow-on asbestos removal composition) Place one konnyaku powder (20-60 mesh) IBg in a moisture-resistant paper bag,
Sealed.
【 スベス の
の１））
（ａ）グルコマンナン水和物（Ａ）のＴＩ４製：グルコ
マンナン０．５重量部、水１００重量部を混和して３０
分間ゆっくり撹拌し、９０分間静置して膨潤したのち５
分間撹拌して、グルコマンナン水和物（Ａ）を調製した
。[Subesu Nono 1)) (a) Glucomannan hydrate (A) made by TI4: Mix 0.5 parts by weight of glucomannan and 100 parts by weight of water to 30%
After stirring slowly for 90 minutes and swelling,
The mixture was stirred for a minute to prepare glucomannan hydrate (A).
（ｂ）グルコマンナン水和物（８）の調製：グルコマン
ナン２重量部、水１００重量部を混和して３０分間ゆっ
くり撹拌し、９０分間静置して膨潤したのち、Ｃａ（Ｏ
Ｈ）２ ｏ．ｓ％懸濁液１０重量部を添加し５分閤混練
して、グルコマンナン水和物（Ｂ）とし、２０分間以内
に噴霧した。これは長時間おくと噴霧（使用）＃にゲル
化し、作業性が悪くなってしまうことによる。(b) Preparation of glucomannan hydrate (8): 2 parts by weight of glucomannan and 100 parts by weight of water were mixed, slowly stirred for 30 minutes, allowed to stand for 90 minutes to swell, and then Ca(O
H)2 o. 10 parts by weight of the s% suspension was added and kneaded for 5 minutes to obtain glucomannan hydrate (B), which was then sprayed within 20 minutes. This is because if left for a long time, the sprayed (used) # will gel, making workability worse.
（Ｃ）吹き付けアスベストの除去：
１．水和膨潤したグルコマンナン水和物（Ａ）を剥ぎ落
し前の天井及び壁面の吹付けアスベストに噴霧し（噴霧
（１））、約１時間経過した後、剥ぎ落しを開始した。(C) Removal of sprayed asbestos: 1. The hydrated and swollen glucomannan hydrate (A) was sprayed onto the sprayed asbestos on the ceiling and wall before being stripped (spraying (1)), and after about 1 hour, stripping was started.
この目的はグル」マンナン水和物（Ａ）が十分滲透する
ことと、吹き付けアスベストに適用する場合、アスベス
トに含まれるアルカリと反応してゲル化させることにあ
る。The purpose of this is to ensure that the glumannan hydrate (A) permeates sufficiently and, when applied to sprayed asbestos, to react with the alkali contained in the asbestos and gel it.
２．剥ぎ落しする部分に水和物（Ａ）を噴霧しながら（
噴霧■）、剥ぎ落しを終了した。2. While spraying the hydrate (A) on the area to be peeled off (
Spraying ■) and stripping were completed.
３．剥ぎ落したアスベストにはグルコマンナン水和物（
Ｂ）を噴霧しながら（噴ｆＪｃ３））、ビニール袋に詰
めて、所定の産業廃棄物として処理した。3. Glucomannan hydrate (
While spraying B) (spray fJc3)), it was packed in a plastic bag and disposed of as specified industrial waste.
（ｄ）除去作業の結果：
１．噴ａ （１）によるグルコマンナン水和物（Δ）は
、天井及び壁面の吹き付けアスベスト材（厚さ１０ｍ）
に浸透して、凡そ２０分後にはゲル化が進行しアスベス
１−の表面に弾性コートを形成して、大気との接触を遮
断した。(d) Results of removal work: 1. Glucomannan hydrate (Δ) from spray a (1) is used to spray asbestos materials (10 m thick) on ceilings and walls.
Approximately 20 minutes after penetration into the asbestos, gelation progressed and an elastic coat was formed on the surface of asbeth 1-, blocking contact with the atmosphere.
２．剥ぎ落しをする部分に適用された噴霧■によるグル
コマンナン水和物（Ａ）は、噴霧（１）によるグルコマ
ンナンと融和し、引き裂きや衝撃等のアスベスト繊維の
飛散を解消した。2. The glucomannan hydrate (A) applied to the area to be stripped by spraying (2) blended with the glucomannan by spraying (1), eliminating asbestos fiber scattering due to tearing and impact.
３．噴霧■によるグルコマンナン水和物（８）は、床面
に落下したアスベストの表面をコートして飛散を解消し
た。3. Glucomannan hydrate (8) by spraying ■ coated the surface of asbestos that had fallen on the floor, eliminating scattering.
４．クリーンアップ清掃に於で、前に剥ぎ落した後の壁
面、天井及び床にグル］マンナン水和物ＣＢ）を噴霧し
３０分間放置した後剥ぎ取ることにより、水和物（Ｂ）
は水濡れを解除し、併せて微小遊離物全てを粘着し、弾
力のあるゲル化物になった。4. During clean-up, spray mannan hydrate (CB) on the walls, ceiling, and floor that had been peeled off before, leave it for 30 minutes, and then peel it off to remove the hydrate (B).
It released the water wetness and also stuck all the microscopic free substances to become an elastic gelled product.
５．本実施例に於けるアスベスト粉塵の濃度を測定した
。結果を第１表に示す。5. The concentration of asbestos dust in this example was measured. The results are shown in Table 1.
検査方法；作業環境測定法に準拠する下記の方法
／
採取方法：メプブランフィルター捕
集 ＜２０！／ｗｉｎ， １５ｍｉｎ）計数方沫：位
相差顕微鏡（４００倍）
第１表 アスベス！−濃度（ ｆ ，’ ｃｄ ）レ
スベス の
の２））
車両の窓周辺、天井の照明器具周辺及び床部の合成樹脂
タイルの下に５！ＩＩＩ〜１０ａａ＋程度の厚さに吹き
付けたアスベスト及びグラスウールの除去に適用した。Inspection method: The following method complies with the Working Environment Measurement Law/ Collection method: Mebburan filter collection <20! /win, 15min) Counting method: Phase contrast microscope (400x) Table 1 Asbeth! -Concentration (f,'cd) level
Smooth Nono 2)) Around vehicle windows, around ceiling lighting fixtures, and under synthetic resin tiles on the floor 5! It was applied to the removal of asbestos and glass wool that had been sprayed to a thickness of about III to 10 aa+.
（ａ）実施例２のグルコマンナン水和物（Ｂ）を同じ方
法で約６０４作製した。(a) Approximately 604 glucomannan hydrates (B) of Example 2 were prepared in the same manner.
（ｂ）グルコマンナン水和物（Ｂ）をアスベスト頑本環
境遊離数 限度（１０ｆ／リットル）に関していえば測
定誤差範囲内ぐあり、寅質的にアスベスト粉塵はない。(b) Glucomannan hydrate (B) contains asbestos asbestos in the environment. Regarding the limit (10 f/liter), it is within the measurement error range, and qualitatively there is no asbestos dust.
吐出役で約１５分噴霧し約３０分経過した後剥ぎ落しを
開始し約１時間３０分で終了した。The sprayer was used to spray for about 15 minutes, and after about 30 minutes, stripping was started and completed in about 1 hour and 30 minutes.
（ｃ）除去作業の結果
１．該車両に存在する除去対室物のグラスウールは接む
剤による固着が強く、吹き付けアスベストと共にする剥
き落し作業は通常３時［！Ｉ以上を要したがｐＨ９以上
に調整したグルコマンナン水和物（Ｂ）を噴霧し３０分
間湿潤を図った後は接着が緩みケレン棒による剥ぎ落し
作業が容易であった。(c) Results of removal work 1. The glass wool that is to be removed from the vehicle is strongly stuck by the adhesive, and the stripping work that is done together with the sprayed asbestos usually takes place at 3 o'clock [! After spraying glucomannan hydrate (B) adjusted to pH 9 or higher and keeping it moist for 30 minutes, the adhesive became loose and it was easy to peel it off with a scraping stick.
２．剥ぎ落したアスベストはビニール袋に収納し所定の
産業廃棄物として処理した。2. The stripped asbestos was stored in plastic bags and disposed of as designated industrial waste.
（発明の効果〉
以上により、これまで低迷する吹き付けアスベストの敞
去等工事が、本格的に進行する条件を達成した。本発明
の組成物又は方法による粉塵飛散の解消は既に確認され
ており、ＥＰＡａ！準工法に本仕様を併用するに於でも
、特に経費負担及び所要時間の大幅軽減は他に類例を見
ない程メリットが大きいことが判明した。(Effects of the invention) As described above, conditions have been achieved for construction work such as the removal of sprayed asbestos, which has been sluggish so far, to proceed in earnest.It has already been confirmed that the composition or method of the present invention eliminates dust scattering. Even when this specification is used in conjunction with the EPAa! quasi-construction method, it has been found that there are unprecedented benefits, especially in terms of significant reductions in costs and required time.
Claims (2)
特徴とする吹き付けアスベスト除去用組成物。(1) A composition for spraying asbestos removal characterized by containing glucomannan as an active ingredient.
する吹き付けアスベストの除去方法。(2) A method for removing sprayed asbestos, which comprises contacting with glucomannan hydrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1306089A JPH02229880A (en) | 1989-02-08 | 1989-11-24 | Composition for sprayed asbestos removal and removal of sprayed asbestos using same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1029304A JPH02263886A (en) | 1988-08-26 | 1989-02-08 | Agent for preventing scattering of dust in demolition of building and preventing method |
| JP1306089A JPH02229880A (en) | 1989-02-08 | 1989-11-24 | Composition for sprayed asbestos removal and removal of sprayed asbestos using same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1029304A Division JPH02263886A (en) | 1988-08-26 | 1989-02-08 | Agent for preventing scattering of dust in demolition of building and preventing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02229880A true JPH02229880A (en) | 1990-09-12 |
| JPH0451592B2 JPH0451592B2 (en) | 1992-08-19 |
Family
ID=26367483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1306089A Granted JPH02229880A (en) | 1989-02-08 | 1989-11-24 | Composition for sprayed asbestos removal and removal of sprayed asbestos using same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02229880A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007130554A (en) * | 2005-11-09 | 2007-05-31 | Mia Kikaku Kk | Treating agent for acicular crystal and method and apparatus for treating acicular crystal |
| JP2008246274A (en) * | 2006-10-13 | 2008-10-16 | Nikko Co Ltd | Treating method of asbestos-containing building material |
| JP2009243227A (en) * | 2008-03-31 | 2009-10-22 | Nichias Corp | Method for processing inorganic fiber layer |
| EP2228420A1 (en) | 2009-03-09 | 2010-09-15 | Japan Corn Starch Co., Ltd. | Additive for dust scattering preventing coatingt water |
| JP2012236888A (en) * | 2011-05-11 | 2012-12-06 | Eco First:Kk | Asbestos scattering preventing agent and asbestos material treatment method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6429304A (en) * | 1987-07-02 | 1989-01-31 | Alza Corp | Useful drug administrative medicine with dispersion member |
| JPS6433646A (en) * | 1987-07-29 | 1989-02-03 | Nec Corp | Data processor with cache memory |
-
1989
- 1989-11-24 JP JP1306089A patent/JPH02229880A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6429304A (en) * | 1987-07-02 | 1989-01-31 | Alza Corp | Useful drug administrative medicine with dispersion member |
| JPS6433646A (en) * | 1987-07-29 | 1989-02-03 | Nec Corp | Data processor with cache memory |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007130554A (en) * | 2005-11-09 | 2007-05-31 | Mia Kikaku Kk | Treating agent for acicular crystal and method and apparatus for treating acicular crystal |
| JP2008246274A (en) * | 2006-10-13 | 2008-10-16 | Nikko Co Ltd | Treating method of asbestos-containing building material |
| JP2009243227A (en) * | 2008-03-31 | 2009-10-22 | Nichias Corp | Method for processing inorganic fiber layer |
| EP2228420A1 (en) | 2009-03-09 | 2010-09-15 | Japan Corn Starch Co., Ltd. | Additive for dust scattering preventing coatingt water |
| JP2012236888A (en) * | 2011-05-11 | 2012-12-06 | Eco First:Kk | Asbestos scattering preventing agent and asbestos material treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0451592B2 (en) | 1992-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4693755A (en) | Method and composition for removing asbestos-containing materials | |
| NZ270311A (en) | Ready-mixed, cementitious composition, comprising a calcium sulphate hemihydrate filler, a calcium-free phosphate set retarder and water | |
| JP3630426B2 (en) | Coating composition and method for producing the same | |
| CA1339293C (en) | Composition for wetting and encapsulating asbestos and method of using | |
| JP2007284318A (en) | Dust-fly preventing treatment agent and treating method | |
| US4748051A (en) | Reducing exposure to hazardous particles | |
| JPH04503182A (en) | asbestos decomposition | |
| JP2007092017A (en) | Composition for use in asbestos scattering prevention | |
| JPH02229880A (en) | Composition for sprayed asbestos removal and removal of sprayed asbestos using same | |
| JP3418990B2 (en) | Compositions and methods for removing asbestos | |
| JP3418989B2 (en) | Compositions and methods for removing asbestos | |
| JP3418991B2 (en) | Compositions and methods for removing asbestos | |
| JPH10147601A (en) | Suppressing agent for dust generation and hardening of fly ash, and suppression of dust generation and hardening of fly ash by using the same | |
| JPH0248484A (en) | Prevention of occurrence of dust of asbestos | |
| JPH01318660A (en) | Method of disposing asbestos layer | |
| JP2915399B1 (en) | Bentonite spraying waterproofing method | |
| JP2013209562A (en) | Film-forming composition, surface cleaning method, method for removing radioactive substance, surface protection method and film | |
| JP2008100873A (en) | Construction method for inhibiting scattering of asbestos | |
| JP4373791B2 (en) | Nonionic foaming composition and method of using nonionic foaming composition for treating asbestos-containing materials | |
| DE4015488A1 (en) | Compsn. for inhibiting dust formation or spreading - during demolition of buildings, handling building materials or removing asbestos cement layers contg. glucomannan | |
| JP5162122B2 (en) | Asbestos enclosure solidification treatment material and asbestos enclosure solidification treatment method using the same | |
| NL8100706A (en) | PAINT REMOVERS. | |
| GB2243836A (en) | Prevention of the drift of dust | |
| JPS6131152B2 (en) | ||
| JP2008143723A (en) | Method for antiscattering asbestos material and method for enclosing asbestos material |