JP5331094B2 - Asbestos containment process and enclosure process - Google Patents

Description

  The present invention relates to an asbestos containment process and an asbestos enclosure process.

  Patent Documents 1 and 2 have proposed construction methods that use a sheet material to prevent falling as well as efficiently perform enclosure work for preventing asbestos dust from being scattered. Further, there is Patent Document 3 as a proposal for a containment method in which a work space is narrowed and construction is performed without an operator entering the work space.

The efficiency described in the literatures 1 and 2 proposes prevention of falling of asbestos materials during work when processing asbestos materials such as beams, and considers safety to the surroundings during use of the building. Although it seems to be the same idea as the present invention to paste the curing sheet of Patent Document 3 at a distance from the asbestos material, it is normal curing to repeatedly open the drug spray port after curing and to repeat the sealing of the opening. The sheet is not strong enough and is dangerous. It is caused by accidental tearing of the curing sheet with a keren rod or peeling of the sheet bonding part by applying a load to the curing sheet, which leads to an asbestos dust scattering accident around the removal work. Moreover, it is not an idea to use a curing sheet or the like as the enclosing material thereafter.

JP 2007-303218 A JP 2008-111320 A JP 2009-150129 A

Asbestos materials constructed on indoor ceiling parts, walls, or beams are effective in preventing asbestos scattering by the containment method or enclosure method from the standpoint of continued use of the building. Measures tend to be delayed due to the time and effort required to hermetically seal the entire surface and, as a result, the cost of measures increases. In the case of the containment treatment method, since there is asbestos material contained in the living space even after countermeasures are taken, appropriate countermeasures are taken from the possibility of re-entrainment due to contact and damage, and mental health problems. A method was sought. In addition, in the enclosing method that does not use the containment processing method, there was a concern about dust scattering from the connecting portion of the material used for enclosing.

  An object of the present invention is to solve the above problems.

  In order to solve the above problems, the asbestos containment / enclosure method according to the present invention uses a thick curing sheet or a resin sheet such as a tent as a curing material, forms a working space for asbestos containment work, and contains a containment agent. After spraying and drying, the curing material is transferred and fixed in the vicinity of the asbestos material, whereby the curing material is used as an interior material or an interior base material.

  Alternatively, the asbestos containment / enclosure method according to the present invention uses a thick curing sheet or a resin sheet such as a tent as a curing material, and forms a working space for the asbestos containment work when the asbestos containment work is performed. Adsorption, condensation due to exceeding the dew point of the drug mist, using an auxiliary curing sheet that constitutes a space for penetrating the drug, and after containment work, folding the curing sheet inside the curing material, It is characterized by avoiding removal and disposal.

  In any one of the above-described configurations, after the asbestos containment / enclosure construction method, the reinforcing material such as the interior panel and the ceiling board or the beautifying material can be finished on the curing material by screwing or the like.

  In any of the above configurations, when carrying out the asbestos containment / enclosure method, in order to minimize the load on the curing material, attach a glove box with an open end to the curing material in advance, and after installing the glove box Can complete the curing.

  The glove box with an open end in this case is disclosed in, for example, Japanese Patent Application No. 2009-299580.

  In any one of the configurations described above, when the glove box is attached to the curing material, the attachment port can be used as an inspection port after construction.

  Apply a packing material to the beam or wall position that does not contact the asbestos material and sandwich a strong material such as a curing sheet or tent, and if you want a wooden square or metal angle, or an aluminum flat plate, etc. Used, fixed by screwing, etc. to form a curing space, and asbestos containment agent is sprayed from the opening to contain it. After the containment is complete, re-fix the tent place, etc., closer to the asbestos material on the ceiling surface or wall surface. At that time, weave the curing sheet used for the surrounding containment process inside the tent place, or add a fireproof board, etc. Enclosure is completed by fixing it with a tent place in between.

  When containment processing was carried out as a countermeasure against asbestos on the ceiling using vermiculite, there was always asbestos material on the resident's head even after completion, but there were mental health problems, but there were tent sites and boards etc. Covering the ceiling and wall surface completes a room that does not damage the asbestos material even if the product is accidentally hit.

In connection with one embodiment of the present invention (an example of countermeasures for ceiling materials), an example of construction using a flame retardant sheet (tent land) is shown, a space necessary for the spraying method is secured, and an operator can perform construction without touching asbestos. It is a figure which shows performing. It is a figure which concerns on one Embodiment (after ceiling measures) of this invention, shows the state which folded the curing sheet in the flame-retardant sheet | seat after the containment construction, and fixed the circumference | surroundings. It is a figure which concerns on one Embodiment (finishing by a ceiling fireproof board) of this invention, and shows the state which fixed the ceiling board after the containment construction.

  The present invention will be described below with reference to the drawings. An example of measures against asbestos in the ceiling part is shown in the figure. FIG. 1 shows a construction example using a flame retardant sheet (tent land). Space required for the spraying method will be secured, and workers will work without touching asbestos. FIG. 2 shows a state in which the curing sheet is folded into the flame retardant sheet and the periphery is fixed after the containment work. FIG. 3 shows a state in which the ceiling board is further fixed after the containment work.

  An example of measures for asbestos on the ceiling part of a general house will be described. The parts that characterize the present invention will be described, and construction will be performed in accordance with relevant laws and regulations even if there is no special description. A packing material is applied to the north ceiling lower wall material, and a flame-retardant sheet (tent ground) with a sufficient length in the east, west, south, and north directions is pressed with an aluminum flat plate and screwed. Pass each wire through the hole in the flame retardant sheet that was previously drilled according to the position of the power line and the fire alarm wiring position, and tape the surroundings. A glove box with an open end fixed to a pedestal is attached to the end of the sheet on the south side, and the surroundings are double-cured with a normal 0.15 mm thick curing sheet.

Spray a specified amount of containment material from the nozzle attached to the glove box.

  After drying, while folding the curing sheet around the flame retardant sheet (tent land) inside, fix the south side of the sheet in the same way as the north side, and also fix the east-west direction in the same way. Fix the electric light and alarm, and if necessary, screw a sheet pressing material such as an aluminum flat plate at appropriate intervals in the vertical and horizontal directions of the ceiling. Cut the excess sheet at the lower end of the flat plate around the sheet.

  When the flame retardant sheet (tent land) is not left on the ceiling surface material, a normal curing sheet may be used, and after the containment operation, it may be removed after the containment process.

  Instead of using a flame retardant sheet (tent land), a normal curing sheet may be used for containment, and after drying, the ceiling panel material may be pressed into the curing sheet.

  If the asbestos material floats, peels off or hangs down, proceed with caution while curing, and after repairing the containment agent, repair the iron sheet on the curing sheet and perform the subsequent work.

  When finishing with a flame retardant sheet or panel, it is possible to carry out the containment process after curing by surface solidification.

  Since the present invention promises the permanent use of buildings by providing a construction method with excellent workability and safety as a countermeasure against asbestos for buildings, the present invention has economic value and can be used industrially. It is.

DESCRIPTION OF SYMBOLS 1 Asbestos material 2 Electric power line 3 Curing material 4 Sheet retainer 5 Packing material 6 Glove box 7 Auxiliary curing sheet 8 Spray nozzle 9 Base 10 Screw stopper 11 Fireproof board

Claims (5)

  Using a thick curing sheet or a resin sheet such as tent as a curing material, forming a work space for asbestos containment work, spraying and drying the containment agent, then moving the curing material to the vicinity of the asbestos material, An asbestos containment / enclosure method characterized by using a curing material as an interior material or interior base material by fixing.   When forming a work space for asbestos containment work using a thick-curing sheet or a resin sheet such as a tent ground as a curing material, due to condensation on the entire surface of the target asbestos material, exceeding the dew point of the chemical fog Asbestos containment is characterized by avoiding the removal and disposal of the auxiliary curing sheet by folding the curing sheet inside the curing material after the containment work, using the auxiliary curing sheet that constitutes the space for penetrating the drug・ Enclosure method.   3. An asbestos containment / enclosure method according to claim 1 or 2, wherein after the construction of the asbestos containment / enclosure method, the reinforcing material such as an interior panel or a ceiling board or a beautifying material is finished by screwing or the like on the curing material.   When carrying out the asbestos containment / enclosure method according to any one of claims 1 to 3, a glove box with an open end is first attached to the curing material in order to minimize the load on the curing material, etc. Asbestos containment / enclosure method characterized by completing curing after box installation. The asbestos containment / enclosure method according to any one of claims 1 to 4 , wherein when the glove box is attached to a curing material, the attachment opening is used as an inspection opening after construction.

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