JPH01226781A - Method for preventing scattering of asbestos - Google Patents
Method for preventing scattering of asbestosInfo
- Publication number
- JPH01226781A JPH01226781A JP5164988A JP5164988A JPH01226781A JP H01226781 A JPH01226781 A JP H01226781A JP 5164988 A JP5164988 A JP 5164988A JP 5164988 A JP5164988 A JP 5164988A JP H01226781 A JPH01226781 A JP H01226781A
- Authority
- JP
- Japan
- Prior art keywords
- asbestos
- scattering
- aqueous solution
- time
- scraping
- 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 53
- 229910052895 riebeckite Inorganic materials 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- -1 aluminum compound Chemical class 0.000 claims abstract description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 8
- 238000007790 scraping Methods 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 3
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 abstract 2
- 229910018626 Al(OH) Inorganic materials 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/40—Asbestos
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、アスベストの飛散防止方法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for preventing scattering of asbestos.
断熱、耐火、防音などの目的に、セメントノぐイングー
のアスベスト層が広く用いられてきたが、セメント劣化
により、アスベストが剥離、飛散し、健康上有害なため
、深刻な社会問題となっており、アスベスト飛散防止の
方法が幾つか提案されている。The asbestos layer of cement nogging has been widely used for purposes such as heat insulation, fireproofing, and soundproofing, but as the cement deteriorates, the asbestos peels off and scatters, which is harmful to health and has become a serious social problem. Several methods have been proposed to prevent asbestos scattering.
すなわち、アスベスト層に水を散布後アスベストをかき
落す方法、アスベスト層に珪酸アルカリ主成分Ａ液を含
浸させた後、硬化剤Ｂ液を注入し、アスベストを硬化さ
せた後アスベストをかき落すか、アスベストを封じ込め
る二液処理方法、シリカゾルをアスベスト層に浸透させ
、水蒸発によってアスベスト層を固化させるアスベスト
層の封じ込め方法などが試みられている。In other words, the asbestos layer is sprayed with water and then scraped off, or the asbestos layer is impregnated with the alkali silicate main component liquid A, the hardening agent B liquid is injected, the asbestos is hardened, and then the asbestos is scraped off. Attempts have been made to contain asbestos, including a two-component treatment method and a method for asbestos layer containment in which silica sol is infiltrated into the asbestos layer and the asbestos layer is solidified by water evaporation.
水散布法はく水が蒸発すると、アスベストが飛散する欠
点があり、硬化剤を含浸させる前掲置注は固化に長時間
、約６時間を要し、かつ前掲二液処理法は、その上、操
作が面倒であるという欠点があり、未だ満足できる方法
は考案されていない。The water spraying method has the disadvantage that asbestos scatters when the water evaporates, the above-mentioned method of impregnating with a hardening agent takes a long time to harden, about 6 hours, and the above-mentioned two-part treatment method It has the drawback of being troublesome to operate, and no satisfactory method has yet been devised.
本発明は、施行方法簡単、薬液処理後の固化が従来法に
比し顕著に速く一様に進行し、迅速作業可能な、アスベ
ストの封じ込めにも、アスベストのかき落しにも実施で
きるアスベストの飛散防止方法を提供することを目的と
する。The method of the present invention is simple, the solidification after chemical treatment progresses significantly faster and more uniformly than conventional methods, and quick work is possible.The present invention can be used for both asbestos containment and asbestos scraping. The purpose is to provide a prevention method.
本発明の方法で使用する式（１）の無機アルミニウム化
合物（ｋｌ （ＯＨ） ｓ ）ｔｏ −ＡＩ Ｏｌｓは
市販品でよく、−市販品の性状は次のとおりである。The inorganic aluminum compound (kl (OH) s ) to -AI Ols of formula (1) used in the method of the present invention may be a commercially available product, and the properties of the commercially available product are as follows.
！！ （ＯＨ）、 １５％
ｐＨ、Ｓ４
粘度（２０’Ｃ） ５ｃｐｓ比重（２０
″Ｃ） １２貯蔵安定性
６ケ月
希釈剤 水
引火性 なし
毒 性 なし
着色性 なし
く１）式化合物は所望により水で適宜希釈して使用する
。（１）式化合物水溶液を、アスベスト剥落個所に、エ
アレスポンプで、吹付、含浸させると、初期反応１〜３
分で固化が始まり、約１時間でアスベスト層の固化が終
了するので、１時間後通常の方法でアスベストをかき落
してもアスベストは飛散しない。! ! (OH), 15% pH, S4 Viscosity (20'C) 5cps Specific Gravity (20'C)
``C) 12 Storage stability
6-month diluent Water Flammability None Toxicity None Coloration properties 1) The compound of formula 1) may be diluted with water as desired before use. When an aqueous solution of the compound of formula (1) is sprayed and impregnated into the area where asbestos has fallen off using an airless pump, initial reactions 1 to 3 occur.
The asbestos layer begins to solidify in minutes and finishes solidifying in about an hour, so even if you scrape off the asbestos in the usual way after an hour, the asbestos will not scatter.
また、アスベストを封じ込める場合には、アスベスト剥
落個所をロックウールで通常の如く補修後、（Ｉ）式化
合物水溶液をエア、レスポンプで吹付、含浸させ、約４
〜６時間養生後、通常の無機質塗料を吹付けて仕上塗工
する。In addition, when asbestos is contained, after repairing the asbestos flaking area with rock wool as usual, spray an aqueous solution of the formula (I) compound with air or a res pump to impregnate it.
After curing for ~6 hours, a final coat is applied by spraying with an ordinary inorganic paint.
（１）式化合物水溶液の吹付量は、アスベスト層厚２０
鰭の際に、ＺＯｋノ／ ｍ ２でよいが、所望により適
宜増減する。The spraying amount of the aqueous solution of the formula compound (1) is asbestos layer thickness 20
For the fins, ZOk/m2 may be sufficient, but the amount may be increased or decreased as desired.
なお、（Ｉ）式化合物はアスベストと化学度応して、強
固に速かに固化するものと考えられる。It is believed that the compound of formula (I) solidifies strongly and quickly depending on the chemical degree of asbestos.
〔実施例１〕アスベストを封じ込める場合アスベスト剥
落個所をロックウールで補修し、補修個所に前掲（１）
式化合物水溶液をエアレスポンプで吹付、含浸させる。[Example 1] When asbestos is contained, repair the peeled-off area of asbestos with rock wool, and apply (1) above to the repaired area.
Spray an aqueous solution of the formula compound using an airless pump to impregnate.
吹付量は２．０ｋｙ／ ｍ ２（アスベスト層厚２０節
）である。６時間養生後、無機質塗料を吹付けて、仕上
塗工する。The spraying amount was 2.0ky/m2 (asbestos layer thickness 20 knots). After curing for 6 hours, spray an inorganic paint for a final coat.
アスベストは完全に封じ込められ、耐熱、耐火性良好で
あり、満足すべき結果をえた。The asbestos was completely contained and had good heat and fire resistance, giving satisfactory results.
〔実施例２〕 アスベスト撤去の場合
アスベスト剥落個所に、実施例１で用いた（１）式化合
物水溶液を、エアレスポンプでＺ Ｏｋｐ／ ｍ２吹付
（アスベスト層厚２０７１１１） 、含浸させた。１時
間後、通常の方法でアスベストをかき落したが、アスベ
ストは飛散せず、満足すべき結果であった。[Example 2] In the case of asbestos removal, the aqueous solution of the compound of formula (1) used in Example 1 was sprayed at Z Okp/m2 (asbestos layer thickness 207111) using an airless pump to impregnate the area where asbestos had fallen off. After one hour, the asbestos was scraped off in the usual manner, but no asbestos was scattered, which was a satisfactory result.
本発明の方法によれば、アスベストの固化が、従来の方
法よりも、速かに深部迄−様に進行するので、作業性良
く、アスベストの飛散は十分に防止され、また剥落アス
ベストの封じ込めにも、かき落しにも適用することがで
き、封じ込めの場合には耐熱耐火性もよく、シかも着色
性がないなど幾多の利点がある。According to the method of the present invention, the solidification of asbestos progresses more quickly and deeper than in the conventional method, so it is easy to work, the scattering of asbestos is sufficiently prevented, and it is possible to contain exfoliated asbestos. It can also be used for scraping, and in the case of containment, it has many advantages such as good heat and fire resistance, and no staining or staining.
特許出願人 ゼネラルボンド株式会社代 理 人
弁理士 沢 茂 夫Patent applicant General Bond Co., Ltd. Agent
Patent Attorney Shigeo Sawa
Claims (1)
で示される無機アルミニウム化合物の水溶液を、アスベ
スト層に吹付、含浸させ、アスベスト層を固化させるこ
とにより、アスベストの飛散を防止するアスベストの飛
散防止方法。[Claims] Formula [Al(OH)_3]_2_0・AlCl_3(I)
An asbestos scattering prevention method that prevents asbestos scattering by spraying and impregnating an asbestos layer with an aqueous solution of an inorganic aluminum compound represented by the formula to solidify the asbestos layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5164988A JPH01226781A (en) | 1988-03-07 | 1988-03-07 | Method for preventing scattering of asbestos |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5164988A JPH01226781A (en) | 1988-03-07 | 1988-03-07 | Method for preventing scattering of asbestos |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01226781A true JPH01226781A (en) | 1989-09-11 |
Family
ID=12892712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5164988A Pending JPH01226781A (en) | 1988-03-07 | 1988-03-07 | Method for preventing scattering of asbestos |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01226781A (en) |
-
1988
- 1988-03-07 JP JP5164988A patent/JPH01226781A/en active Pending
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