JPH01131085A - Sealer for peeling asbestos and asbestos-peeing method - Google Patents
Sealer for peeling asbestos and asbestos-peeing methodInfo
- Publication number
- JPH01131085A JPH01131085A JP28795087A JP28795087A JPH01131085A JP H01131085 A JPH01131085 A JP H01131085A JP 28795087 A JP28795087 A JP 28795087A JP 28795087 A JP28795087 A JP 28795087A JP H01131085 A JPH01131085 A JP H01131085A
- Authority
- JP
- Japan
- Prior art keywords
- water
- soluble polymer
- asbestos
- sealer
- gelling agent
- 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
- 239000010425 asbestos Substances 0.000 title claims abstract description 69
- 229910052895 riebeckite Inorganic materials 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims description 24
- 229920003169 water-soluble polymer Polymers 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 239000003349 gelling agent Substances 0.000 claims abstract description 43
- 239000002612 dispersion medium Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 239000000839 emulsion Substances 0.000 claims abstract description 9
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 claims abstract description 9
- 239000013522 chelant Substances 0.000 claims abstract description 7
- 239000003961 penetration enhancing agent Substances 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 7
- 229920006174 synthetic rubber latex Polymers 0.000 claims description 7
- 238000005470 impregnation Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 abstract description 16
- -1 polyoxyethylene octyl phenyl ether Polymers 0.000 abstract description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004327 boric acid Substances 0.000 abstract description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 229920002114 octoxynol-9 Polymers 0.000 abstract description 2
- 239000000661 sodium alginate Substances 0.000 abstract description 2
- 235000010413 sodium alginate Nutrition 0.000 abstract description 2
- 229940005550 sodium alginate Drugs 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 3
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 229920003051 synthetic elastomer Polymers 0.000 abstract 1
- 239000005061 synthetic rubber Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005507 spraying Methods 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 239000003623 enhancer Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229940015043 glyoxal Drugs 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 229920003064 carboxyethyl cellulose Polymers 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 229920001429 chelating resin Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、内装工事に関し、より詳細には、建造物の
内壁などに吹付けられた石綿を剥離する方法およびその
方法に用いるシーラーに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to interior construction work, and more particularly to a method for peeling off asbestos sprayed on the inner walls of a building, and a sealer used in the method.
ピルデンイング、地下道、家屋などの建造物の天井、壁
に断熱などの目的で、石綿を含む吹付は材が、塗布、噴
霧、および吹付けされている。Spraying materials containing asbestos are applied, sprayed, and sprayed on the ceilings and walls of structures such as pildens, underground passages, and houses for purposes such as insulation.
この建造物に吹付けられた石綿の層は、必要に応じて適
宜、スフレイパーなどの道具を用いた手作業、または高
圧水吹付けなどにより剥離されていた。近年、石綿に発
ガン性があることが問題になり、石綿の剥離工事が増大
すると共に、その工事中、工事後も石綿繊維片の飛散を
防止する必要が生じている。The layer of asbestos that was sprayed onto this building was peeled off, as necessary, by hand using a tool such as a spray scraper, or by high-pressure water spraying. In recent years, the carcinogenicity of asbestos has become a problem, and asbestos removal work has increased, it has become necessary to prevent asbestos fiber fragments from scattering during and after the work.
従来、石綿の剥離工事は、スフレイバ−（ケレンともい
う）などの道具を用いた手作業、および高圧水吹付けな
どの機械的除去が行われていた。Conventionally, asbestos removal work has been carried out manually using tools such as souffle bars (also called keren) and mechanically using high-pressure water spraying.
しかしながら、従来のスフレイバーなどの道具を用いた
手作業、および高圧水吹付けなどの機械的な剥離作業で
は、多量の石綿繊維片が周囲に飛散する。したがって、
石綿の剥離工事は、作業現場をビニールシートなどで密
閉して行われ、作業員は石綿繊維片遮断マスクを装着し
なくてはならず、石綿による現場の汚染は防止できなか
った。However, manual stripping operations using conventional tools such as soufflaver, and mechanical stripping operations such as high-pressure water spraying, scatter large amounts of asbestos fiber pieces into the surrounding environment. therefore,
Asbestos removal work was carried out by sealing the work site with vinyl sheets, etc., and workers had to wear masks that blocked out asbestos fiber fragments, making it impossible to prevent asbestos from contaminating the site.
この発明は上述の背景に基づきなされたものであり、そ
の目的とするところは従来の方法の問題点を解消し、石
綿の剥離作業において吹付けられた石綿を容易に剥離さ
せると共にその石綿繊維片の粉塵の飛散を防止すること
のできる剥離方法およびその方法に用いるシーラーをを
提供することである。This invention was made based on the above-mentioned background, and its purpose is to solve the problems of the conventional method, to easily peel off asbestos sprayed during asbestos removal work, and to remove the asbestos fiber pieces. An object of the present invention is to provide a peeling method capable of preventing the scattering of dust and a sealer used in the method.
上記課題は、この発明によるシーラーは、建造物に吹付
けられた石綿の剥離用シーラーであって、水溶性高分子
および該水溶性高分子のゲル化剤を有することを特徴と
するものである。The above-mentioned problem is that the sealer according to the present invention is a sealer for removing asbestos sprayed on buildings, and is characterized by having a water-soluble polymer and a gelling agent for the water-soluble polymer. .
この発明の好ましい態様において、シーラーは、ゲル化
剤を含む第一液と、水溶性高分子を含む第二液とからな
る。In a preferred embodiment of this invention, the sealer consists of a first liquid containing a gelling agent and a second liquid containing a water-soluble polymer.
上記の２液型のシーラーとは別に、この発明の別の態様
として、このシーラーは、ゲル化剤を含む液状分散相と
、水溶性高分子を含む液状分散媒とからなる、または、
ゲル化剤を含む液状分散媒と、水溶性高分子を含む液状
分散相とからなる。Apart from the above-mentioned two-component sealer, as another aspect of the present invention, this sealer consists of a liquid dispersion phase containing a gelling agent and a liquid dispersion medium containing a water-soluble polymer, or
It consists of a liquid dispersion medium containing a gelling agent and a liquid dispersed phase containing a water-soluble polymer.
この発明の上記態様において、ゲル化剤を含む第一液に
、またはゲル化剤を含む液状分散相若しくは分散媒に、
キレート樹脂、浸透促進剤を添加することができる。In the above aspect of the invention, the first liquid containing the gelling agent, or the liquid dispersed phase or dispersion medium containing the gelling agent,
Chelate resins and penetration enhancers can be added.
この発明の好ましい態様において、水溶性高分子を含む
第二液に、または水溶性高分子を含む液状分散相若しく
は分散媒に、合成樹脂エマルジョンまたは合成ゴムラテ
ックス、浸透促進剤を添加することができる。In a preferred embodiment of this invention, a synthetic resin emulsion, synthetic rubber latex, or penetration enhancer can be added to the second liquid containing the water-soluble polymer, or to the liquid dispersed phase or dispersion medium containing the water-soluble polymer. .
この発明の石綿剥離法は、建造物に吹付けられた石綿か
らなる外層に、水溶性高分子および該水溶性高分子のゲ
ル化剤を有するシーラーを含浸させ、水溶性高分子をゲ
ル化させて、石綿の外層を建造物から機械的に剥離する
を含むことを特徴とするものである。The asbestos removal method of this invention impregnates the outer layer of asbestos sprayed onto a building with a sealer containing a water-soluble polymer and a gelling agent for the water-soluble polymer to gel the water-soluble polymer. The method is characterized in that it includes mechanically peeling off the outer layer of asbestos from the structure.
以下、この発明をより詳細に説明する。This invention will be explained in more detail below.
この発明のシーラーは、水溶性高分子およびこの水溶性
高分子のゲル化剤を有する。The sealer of this invention has a water-soluble polymer and a gelling agent for this water-soluble polymer.
この発明で用いることができる水溶性高分子として、例
えば、ポリビニルアルコール、メチルセルロース、カル
ボキシメチルセルロース、カルボキシエチルセルロース
、ポリエチレンオキサイドデキストリン、ポリアクリル
アマイドなどがある。Examples of water-soluble polymers that can be used in the present invention include polyvinyl alcohol, methylcellulose, carboxymethylcellulose, carboxyethylcellulose, polyethylene oxide dextrin, and polyacrylamide.
ここで用いられるゲル化剤は、上記の水溶性高分子を凝
集してゲル化するものであり、その水溶性高分子に応じ
て適宜選択することができる。そのようなものとして、
例えば、グリオキザール、ホウ酸、ホウ砂、クエン酸な
どがある。The gelling agent used here aggregates and gels the water-soluble polymer described above, and can be appropriately selected depending on the water-soluble polymer. As such,
Examples include glyoxal, boric acid, borax, and citric acid.
この発明において、必須の水溶性高分子およびゲル化剤
は、使用に際して両者が反応する様に、シーラーに含め
られる。したがって、その態様には種々のものがある。In this invention, the essential water-soluble polymer and gelling agent are included in the sealer so that the two react upon use. Therefore, there are various aspects.
例えば、ゲル化剤を含む第一液と、水溶性高分子を含む
第二液とからなる２液型、この２液型のシーラーとは別
に、ゲル化剤を含む液状分散相と水溶性高分子を含む液
状分散媒とからなる分散液型、その逆のゲル化剤を含む
液状分散媒と水溶性高分子を含む液状分散相とからなる
分散液型などがある。For example, a two-part sealer consists of a first part containing a gelling agent and a second part containing a water-soluble polymer. There are a dispersion type consisting of a liquid dispersion medium containing molecules, and a dispersion type consisting of a liquid dispersion medium containing a gelling agent and a liquid dispersion phase containing a water-soluble polymer.
上記の分散液型では、例えば、液状分散相は好ましくは
カプセル化されたものである。In the above dispersion type, for example, the liquid dispersed phase is preferably encapsulated.
この発明において、上記の水溶性高分子およびこの水溶
性高分子のゲル化剤以外に、必要に応じて種々の添加物
を含めることができる。In this invention, in addition to the above-mentioned water-soluble polymer and gelling agent for this water-soluble polymer, various additives can be included as necessary.
その様なものとして、ゲル化剤を含む第一液に、または
ゲル化剤を含む液状分散相若しくは分散媒に、例えば、
キレート樹脂や浸透促進剤がある。As such, in the first liquid containing the gelling agent, or in the liquid dispersed phase or dispersion medium containing the gelling agent, e.g.
There are chelate resins and penetration enhancers.
また、水溶性高分子を含む第二液に、または水溶性高分
子を含む液状分散相若しくは分散媒に、例えば、合成樹
脂エマルジョンまたは合成ゴムラテックスや浸透促進剤
がある。Further, the second liquid containing the water-soluble polymer or the liquid dispersed phase or dispersion medium containing the water-soluble polymer includes, for example, a synthetic resin emulsion or synthetic rubber latex or a penetration enhancer.
添加することができるキレート樹脂は、石綿中の金属化
合物を反応してキレートを形成することができる電解質
高分子であり、その様なものとして、例えば、水酸基、
２塩基酸、ハロゲンなどを有するポリ（メタ）アクリル
酸塩、アルギン酸ソーダなどがある。Chelate resins that can be added are electrolyte polymers that can react with metal compounds in asbestos to form chelates, such as hydroxyl groups,
Examples include dibasic acids, poly(meth)acrylates containing halogens, and sodium alginate.
この発明で用いることができる浸透促進剤は、シーラー
が石綿層の内部まで浸透することを促進する作用を有す
るものであり、その様なものとして、アルキルナフタレ
ンスルホン酸塩、ジアルキルスルホコハク酸塩などのア
ニオン系界面活性剤、ポリオキシエチレンオクチルフェ
ニルエーテル、ポリオキシエチレンアルキルフェノール
エーテル、ポリオキシエチレンアルキルエーテルなどの
ノニオン系界面活性剤などがある。The penetration enhancer that can be used in this invention has the effect of promoting the penetration of the sealer into the asbestos layer, and examples thereof include alkylnaphthalene sulfonates, dialkyl sulfosuccinates, etc. Examples include anionic surfactants, nonionic surfactants such as polyoxyethylene octylphenyl ether, polyoxyethylene alkylphenol ether, and polyoxyethylene alkyl ether.
この発明で用いることができる合成樹脂エマルジョンま
たは合成ゴムラテックスは、水溶性高分子を共にシーラ
ーに含有される。合成樹脂エマルジョンとしては、酢酸
ビニル樹脂、エチレン−酢酸ビニル共重合樹脂、酢酸ビ
ニル−アクリル共重合樹脂、アクリル酸エステル樹脂、
アクリル−スチレン共重合樹脂、エポキシ樹脂、ウレタ
ン樹脂などがある。また、合成ゴムラテックスとしては
、スチレン−ブタジェンゴム、クロロプレンゴム、ブタ
ジェンゴムなどがある。エポキシ樹脂およびウレタン樹
脂などの反応型樹脂を用いた場合、添加剤としてその硬
化剤を更に添加することができる。The synthetic resin emulsion or synthetic rubber latex that can be used in the present invention is contained in a sealer together with a water-soluble polymer. Examples of synthetic resin emulsions include vinyl acetate resin, ethylene-vinyl acetate copolymer resin, vinyl acetate-acrylic copolymer resin, acrylic ester resin,
Examples include acrylic-styrene copolymer resin, epoxy resin, and urethane resin. Examples of synthetic rubber latex include styrene-butadiene rubber, chloroprene rubber, and butadiene rubber. When a reactive resin such as an epoxy resin or a urethane resin is used, a curing agent thereof can be further added as an additive.
水溶性高分子とゲル化剤との配合比は、石綿吹付は材の
種類、その量などに応じて適宜変更することができ、例
えば、水溶性高分子１００重量部（固形分）に対して、
ゲル化剤は、０．２〜２００重量部（固形分）、好まし
くは２０〜１５０重量部（固形分）である。The blending ratio of water-soluble polymer and gelling agent can be changed as appropriate depending on the type of material and its amount when spraying asbestos. For example, for 100 parts by weight (solid content) of water-soluble polymer, ,
The gelling agent is used in an amount of 0.2 to 200 parts by weight (solid content), preferably 20 to 150 parts by weight (solid content).
その他の添加剤の添加量も、水溶性高分子、ゲル化剤、
石綿吹付は材などの種類、その量などに応じて適宜変更
することができる。The amounts of other additives added include water-soluble polymers, gelling agents,
Asbestos spraying can be changed as appropriate depending on the type of material, amount, etc.
この発明の石綿剥離法は、建造物に吹付けられた石綿か
らなる外層に、水溶性高分子および該水溶性高分子のゲ
ル化剤を有するシーラーを含浸させ、水溶性高分子をゲ
ル化させて、石綿の外層を建造物から機械的に剥離する
を含むことを特徴とするものである。The asbestos removal method of this invention impregnates the outer layer of asbestos sprayed onto a building with a sealer containing a water-soluble polymer and a gelling agent for the water-soluble polymer to gel the water-soluble polymer. The method is characterized in that it includes mechanically peeling off the outer layer of asbestos from the structure.
この発明において、必須の水溶性高分子およびゲル化剤
は、剥離に際して両者が反応する様に、石綿の外層に含
浸される。したがって、その態様には種々のものがあり
、塗布方法としては、ハケ、ローラー、スプレーなどが
あり、注入方法としては、ポンプなどで注入する方法が
ある。In this invention, the essential water-soluble polymer and gelling agent are impregnated into the outer layer of asbestos so that they react during peeling. Therefore, there are various ways to apply it, and examples of application methods include brush, roller, and spray, and examples of injection methods include injection using a pump or the like.
ａ、 シーラーの含浸工程を、該ゲル化剤を含む第一
液を先ず石綿の外層に塗布又は注入し、次いで水溶性高
分子を含む第二液を塗布又は注入することにより行うこ
とができる。a. The sealer impregnation step can be carried out by first applying or injecting a first liquid containing the gelling agent onto the outer layer of asbestos, and then applying or injecting a second liquid containing a water-soluble polymer.
ｂ、 シーラーの含浸工程を、水溶性高分子を含む第
二液を先ず石綿の外層に塗布又は注入し、次いでゲル化
剤を含む第一液を塗布又は注入することにより行うこと
ができる。b. The sealer impregnation step can be carried out by first applying or injecting a second liquid containing a water-soluble polymer onto the outer layer of asbestos, and then applying or injecting a first liquid containing a gelling agent.
Ｃ１シーラーの含浸工程をゲル化剤を含む第一液と水溶
性高分子を含む第二液を同時に塗布又は注入することも
できる。The C1 sealer impregnation step can also be performed by simultaneously applying or injecting a first liquid containing a gelling agent and a second liquid containing a water-soluble polymer.
ｄ、 分散液型のシーラーを用いる場合、シーラーを塗
布又は注入し、次いで加熱、抑圧など処理を行ってカプ
セル化された分散相と分散媒とを反応させることもでき
る。d. When using a dispersion type sealer, the sealer can be applied or injected and then heated, suppressed, or other treatments can be performed to cause the encapsulated dispersed phase and dispersion medium to react.
水溶性高分子がゲル化された石綿の外層及び内層を建造
物から機械的に剥離する手段は、スフレイパーなどの道
易を用いた手作業で飛散することなく容易に行うことが
できる。The outer and inner layers of asbestos in which a water-soluble polymer is gelled can be mechanically peeled off from a building by hand using a tool such as a spatulaper, without scattering the asbestos.
上記の様な構成を有するこの発明では、含浸されたゲル
化剤と水溶性高分子が、石綿層の内部で反応して、水溶
性高分子が凝集し、石綿繊維と絡み合う。石綿繊維と絡
み合った水溶性高分子が、剥離作業においても、内部か
らも石綿繊維片を飛散するのを防止する。In this invention having the above configuration, the impregnated gelling agent and water-soluble polymer react inside the asbestos layer, and the water-soluble polymer aggregates and becomes entangled with asbestos fibers. The water-soluble polymer intertwined with asbestos fibers prevents asbestos fiber pieces from scattering from inside during stripping work.
この発明の好ましい態様において添加される浸透促進剤
は、その界面活性作用により、ゲル化剤と水溶性高分子
とが石綿層のより深い内部まで浸透することを促進させ
る。The penetration enhancer added in a preferred embodiment of the present invention promotes penetration of the gelling agent and the water-soluble polymer deeper into the asbestos layer due to its surfactant action.
この発明の好ましい態様において添加される合成樹脂エ
マルジョンおよび合成ゴムラテックスは、石綿層の内部
に深く浸透せずその表層部に付着して特に石綿繊維片が
飛散しやすい表層部からの飛散を防止する。The synthetic resin emulsion and synthetic rubber latex added in a preferred embodiment of the present invention do not penetrate deeply into the asbestos layer, but adhere to the surface layer to prevent asbestos fiber fragments from scattering from the surface layer, where they are particularly likely to scatter. .
更に、この発明の好ましい態様において添加されるキレ
ート樹脂は、直接に石綿に作用して石綿繊維片の飛散を
妨げる。Furthermore, the chelate resin added in a preferred embodiment of the present invention acts directly on asbestos and prevents asbestos fiber pieces from scattering.
上記の構成および作用を有するこの発明は、以下の効果
を有する。This invention having the above configuration and operation has the following effects.
（イ） この発明のシーラーおよび剥離法により、吹付
けられた石綿層の内部および表面が、補強および強化さ
れ、その石綿層の剥離作業の際に、石綿繊維片の飛散が
実質的になくなり、人体への悪影響をなくすることがで
きる。(a) With the sealer and peeling method of the present invention, the interior and surface of the sprayed asbestos layer are reinforced and strengthened, and during the peeling work of the asbestos layer, scattering of asbestos fiber pieces is substantially eliminated; It can eliminate harmful effects on the human body.
（ロ） この発明のシーラーは、吹付けられた石綿層の
下地への付着性を大巾に低下させ、作業において剥離を
容易にして作業能率を向上させることができる。(b) The sealer of the present invention can greatly reduce the adhesion of the sprayed asbestos layer to the substrate, making it easier to peel off during work and improving work efficiency.
（ハ） この発明のシーラーは、水性系であるために、
火災や爆発などの心配がなく取扱が容易であり、また、
人体への悪影響もない。(c) Since the sealer of this invention is water-based,
It is easy to handle without worrying about fire or explosion, and
There is no adverse effect on the human body.
この発明を、以下の例を参照して具体的に説明する。 The invention will be specifically explained with reference to the following examples.
実施例１ 下記組成の第一液および第二液を調製した。Example 1 A first liquid and a second liquid having the following compositions were prepared.
第一液の組成（重量％）
ゲル化剤（グリオキザール） ２浸透促
進剤（アルキルナフタレンスルホン １酸塩）
キレート樹脂（ポリアクリル酸塩） ５水
９２
第二液の組成（重量％）
水溶性高分子（ポリビニルアルコール） ５合成
樹脂エマルジョン（酢酸ビニル樹脂）２５浸透促進剤（
ポリオキシエチレンオクチル １フエニルエーテル）
水
６９コンクリート壁に吹付けられた厚さ２０ｎ＋ｎ＋
石綿層に、先ず第一液を塗布し、次いで、１０分後に第
二液を塗布した。Composition of the first liquid (% by weight) Gelling agent (glyoxal) 2 Penetration enhancer (alkylnaphthalene sulfone monoacid) Chelating resin (polyacrylate) 5 Water
92
Composition of second liquid (wt%) Water-soluble polymer (polyvinyl alcohol) 5 Synthetic resin emulsion (vinyl acetate resin) 25 Penetration enhancer (
Polyoxyethylene octyl 1 phenyl ether) water
69 Thickness 20n+n+ sprayed on concrete wall
The first liquid was first applied to the asbestos layer, and then, 10 minutes later, the second liquid was applied.
塗布後、石綿層は水で湿潤してスフレイパーなどの道具
で容易に剥離し易くなると共に、石綿繊維が固まって剥
離作業中での石綿繊維片の飛散が殆どなかった。After application, the asbestos layer became wet with water and could be easily peeled off with a tool such as a spray scraper, and the asbestos fibers hardened so that there was almost no scattering of asbestos fiber pieces during the peeling process.
実施例２
第二液と第二液との塗布順序を、実施例１と逆にしたこ
と以外、実施例１と同様に実施した。Example 2 The same procedure as in Example 1 was carried out except that the order of application of the second liquid and the second liquid was reversed.
実施例１と同様に、石綿層か容易に剥離し易くなると共
に、剥離作業中での石綿繊維片の飛散が殆どなかった。As in Example 1, the asbestos layer was easily peeled off, and there was almost no scattering of asbestos fiber pieces during the peeling operation.
実施例３
水性高分子として、カルボキシメチルセルロースを用い
たこと以外、実施例１と同様に実施した。Example 3 The same procedure as in Example 1 was carried out except that carboxymethyl cellulose was used as the aqueous polymer.
実施例１と同様に、石綿層が容易に剥離し易く−１５＝
なると共に、剥離作業中での石綿繊維片の飛散が殆どな
かった。As in Example 1, the asbestos layer was easily peeled off -15=, and there was almost no scattering of asbestos fiber pieces during the peeling operation.
実施例４
ゲル化剤として、ホウ酸を用いたこと以外、実施例１と
同様に実施した。Example 4 The same procedure as in Example 1 was carried out except that boric acid was used as the gelling agent.
実施例１と同様に、石綿層が容易に剥離し易くなると共
に、剥離作業中での石綿繊維片の飛散が殆どなかった。As in Example 1, the asbestos layer was easily peeled off, and there was almost no scattering of asbestos fiber pieces during the peeling operation.
出願人代理人 佐 藤 −雄Applicant's representative: Mr. Sato
Claims (1)
する、建造物に吹付けられた石綿の剥離用シーラー。 ２、該ゲル化剤を含む第一液と、水溶性高分子を含む第
二液とからなる、特許請求の範囲第１項記載のシーラー
。 ３、該ゲル化剤を含む液状分散相と、水溶性高分子を含
む液状分散媒とからなる、特許請求の範囲第１項記載の
シーラー。 ４、該ゲル化剤を含む液状分散媒と、水溶性高分子を含
む液状分散相とからなる、特許請求の範囲第１項記載の
シーラー。 ５、分散相が、カプセル化されたものである、特許請求
の範囲第３項または第４項記載のシーラー。 ６、ゲル化剤を含む第一液に、またはゲル化剤を含む液
状分散相若しくは分散媒に、キレート樹脂が添加された
、特許請求の範囲第２項乃至第５項のいずれかに記載の
シーラー。 ７、ゲル化剤を含む第一液に、またはゲル化剤を含む液
状分散相若しくは分散媒に、浸透促進剤が添加された、
特許請求の範囲第２項乃至第６項のいずれかに記載のシ
ーラー。 ８、水溶性高分子を含む第二液に、または水溶性高分子
を含む液状分散相若しくは分散媒に、合成樹脂エマルジ
ョンまたは合成ゴムラテックスが添加された、特許請求
の範囲第２項乃至第７項のいずれかに記載のシーラー。 ９、水溶性高分子を含む第二液に、または水溶性高分子
を含む液状分散相若しくは分散媒に、浸透促進剤が添加
された、特許請求の範囲第２項乃至第８項のいずれかに
記載のシーラー。 １０、建造物に吹付けられた石綿からなる外層に、水溶
性高分子および該水溶性高分子のゲル化剤を有するシー
ラーを含浸させ、水溶性高分子をゲル化させて、石綿の
外層を建造物から機械的に剥離するを含む、建造物に吹
付けられた石綿を剥離する方法。 １１、シーラーの含浸工程が、該ゲル化剤を含む第一液
を先ず石綿の外層に塗布又は注入し、次いで水溶性高分
子を含む第二液を塗布又は注入することからなる特許請
求の範囲第１０項記載の石綿剥離法。 １２、シーラーの含浸工程が、水溶性高分子を含む第二
液を先ず石綿の外層に塗布又は注入し、次いで該ゲル化
剤を含む第一液を塗布又は注入することからなる特許請
求の範囲第１０項記載の石綿剥離法。 １３、ゲル化剤を含む第一液に、キレート樹脂が添加さ
れた、特許請求の範囲第１１項乃至第１２項のいずれか
に記載の石綿剥離法。 １４、ゲル化剤を含む第一液に、浸透促進剤が添加され
た、特許請求の範囲第１１項乃至第１２項のいずれかに
記載の石綿剥離法。 １５、水溶性高分子を含む第二液に、合成樹脂エマルジ
ョンまたは合成ゴムラテックスが添加された、特許請求
の範囲第１１項乃至第１２項のいずれかに記載の石綿剥
離法。 １６、水溶性高分子を含む第二液に、浸透促進剤が添加
された、特許請求の範囲第１１項乃至第１２項のいずれ
かに記載の石綿剥離法。[Scope of Claims] 1. A sealer for removing asbestos sprayed onto buildings, comprising a water-soluble polymer and a gelling agent for the water-soluble polymer. 2. The sealer according to claim 1, comprising a first liquid containing the gelling agent and a second liquid containing a water-soluble polymer. 3. The sealer according to claim 1, comprising a liquid dispersed phase containing the gelling agent and a liquid dispersion medium containing a water-soluble polymer. 4. The sealer according to claim 1, comprising a liquid dispersion medium containing the gelling agent and a liquid dispersion phase containing a water-soluble polymer. 5. The sealer according to claim 3 or 4, wherein the dispersed phase is encapsulated. 6. The method according to any one of claims 2 to 5, wherein the chelate resin is added to the first liquid containing the gelling agent or to the liquid dispersed phase or dispersion medium containing the gelling agent. Sealer. 7. A penetration enhancer is added to the first liquid containing the gelling agent or to the liquid dispersed phase or dispersion medium containing the gelling agent.
A sealer according to any one of claims 2 to 6. 8. Claims 2 to 7, wherein a synthetic resin emulsion or synthetic rubber latex is added to the second liquid containing the water-soluble polymer, or to the liquid dispersed phase or dispersion medium containing the water-soluble polymer. The sealer described in any of the sections. 9. Any one of claims 2 to 8, wherein a penetration enhancer is added to the second liquid containing the water-soluble polymer, or to the liquid dispersed phase or dispersion medium containing the water-soluble polymer. Sealer listed in. 10. The outer layer of asbestos sprayed onto the building is impregnated with a sealer containing a water-soluble polymer and a gelling agent for the water-soluble polymer to gel the water-soluble polymer and remove the asbestos outer layer. A method of stripping asbestos sprayed onto a structure, including mechanical stripping from the structure. 11. Claims in which the sealer impregnation step comprises first applying or injecting a first liquid containing the gelling agent to the outer layer of asbestos, and then applying or injecting a second liquid containing a water-soluble polymer. Asbestos removal method according to item 10. 12. Claims in which the sealer impregnation step comprises first applying or injecting a second liquid containing a water-soluble polymer onto the outer layer of asbestos, and then applying or injecting a first liquid containing the gelling agent. Asbestos removal method according to item 10. 13. The asbestos removal method according to any one of claims 11 to 12, wherein a chelate resin is added to the first liquid containing a gelling agent. 14. The asbestos removal method according to any one of claims 11 to 12, wherein a penetration enhancer is added to the first liquid containing a gelling agent. 15. The asbestos removal method according to any one of claims 11 to 12, wherein a synthetic resin emulsion or synthetic rubber latex is added to the second liquid containing a water-soluble polymer. 16. The asbestos removal method according to any one of claims 11 to 12, wherein a penetration enhancer is added to the second liquid containing the water-soluble polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28795087A JPH01131085A (en) | 1987-11-14 | 1987-11-14 | Sealer for peeling asbestos and asbestos-peeing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28795087A JPH01131085A (en) | 1987-11-14 | 1987-11-14 | Sealer for peeling asbestos and asbestos-peeing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01131085A true JPH01131085A (en) | 1989-05-23 |
Family
ID=17723834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28795087A Pending JPH01131085A (en) | 1987-11-14 | 1987-11-14 | Sealer for peeling asbestos and asbestos-peeing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01131085A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424368A (en) * | 1990-05-21 | 1992-01-28 | Kikusui Kagaku Kogyo Kk | Removing method for asbestos cover layer |
| EP1302513A1 (en) * | 2001-10-15 | 2003-04-16 | Careful Times Limited | Composition for application to surfaces |
| KR100619100B1 (en) * | 2006-02-20 | 2006-09-05 | 김희영 | Composition for reducing fugitive dust for spray paint |
| JP2007177138A (en) * | 2005-12-28 | 2007-07-12 | Chuo Rika Kogyo Corp | Emulsion composition for prevention treatment of asbestos scattering and method for releasing asbestos by using the same composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6442376A (en) * | 1987-08-06 | 1989-02-14 | Shimizu Construction Co Ltd | Treatment of fireproof covering material to prevent generation of dust |
-
1987
- 1987-11-14 JP JP28795087A patent/JPH01131085A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6442376A (en) * | 1987-08-06 | 1989-02-14 | Shimizu Construction Co Ltd | Treatment of fireproof covering material to prevent generation of dust |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424368A (en) * | 1990-05-21 | 1992-01-28 | Kikusui Kagaku Kogyo Kk | Removing method for asbestos cover layer |
| EP1302513A1 (en) * | 2001-10-15 | 2003-04-16 | Careful Times Limited | Composition for application to surfaces |
| JP2007177138A (en) * | 2005-12-28 | 2007-07-12 | Chuo Rika Kogyo Corp | Emulsion composition for prevention treatment of asbestos scattering and method for releasing asbestos by using the same composition |
| KR100619100B1 (en) * | 2006-02-20 | 2006-09-05 | 김희영 | Composition for reducing fugitive dust for spray paint |
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