JP2005061183A - Method for removing efflorescence by water absorbing sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for positively and efficiently removing efflorescence on a pavement block surface. <P>SOLUTION: This method is based on washing the efflorescence away with water utilizing the fact that a substance of efflorescence changes into a water soluble solution by reacting on an efflorescence remover 2 (hydrochloric acid based). In the method, a water absorbing sheet is impregnated with the efflorescence remover 2 (liquid), and an efflorescence part of a pavement block 1 is covered with the water absorbing sheet. After the lapse of an appropriate time, the water absorbing sheet 4 is removed, and sufficient washing with water is performed. On a part hard to remove, the work is repeated again. As to a severe part of efflorescence, after it is covered with the water absorbing sheet 4, the efflorescence remover 2 is added by a watering pot or the like. On a part with a large efflorescence removal area, there are a method of covering the pavement block surface with the water absorbing sheet 4 and then allowing the efflorescence remover 2 to be sucked therein by the watering pot or the like to remove efflorescence, and a method of sprinkling the efflorescence remover 2 on the surface of the pavement block 1 and then covering it with the water absorbing sheet 4 to remove efflorescence. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

  The present invention relates to a method for removing white flower that has become white on a pavement block surface.

  Conventionally, the method for removing white flower on paving blocks is to apply a white flower remover to the area where the white flower is white, or after applying the white flower remover, rub it with a brush and wash with water. It was a method that washed away the remover and white flower. With this method, the pavement block surface is inclined or uneven, or the liquid agent flows down from the block joints, and the white flower removal agent does not remain uniformly on the pavement block surface. There was a lot of fact that it became insufficient, and the color of the paving blocks became sparse, which was a complaint.

Problems to be solved by the invention

  The object is to remove the white flower on the pavement block surface almost uniformly and reliably.

Means for solving the problem

  In order to remove the white flower on the paving block surface uniformly, it is necessary to apply a certain amount of white flower remover per unit area to the block surface. This problem was solved by using a water absorbing sheet.

  A method of covering a whitened portion of a paving block with a water absorbent sheet (cloth, sheets, etc.) impregnated with a whitening agent. Alternatively, a method of applying a whitening agent to a whitened pavement block surface and covering a water absorbing sheet thereon. Also, when white flower is terrible, a lot of gas is generated, so it is effective to use a water absorbing sheet with small holes. After a certain period of time, peel off the water-absorbing sheet and wash thoroughly. By letting the water-absorbing sheet absorb the white flower remover, a nearly uniform amount of white flower remover per unit area can remain in the sheet on the pavement block surface. It becomes.

The invention's effect

  By doing this, the diffusion and loss of the white flower remover to other than the paving block is small, and the white flower removal is surely performed.Therefore, the replacement of the paving block due to the white flower claim is reduced, and the claim cost is reduced. The In addition, work efficiency of white flower removal can be improved.

  It is a cross section of the conventional white flower removal method.   It is the cross section of the white flower removal method applied this time.

Explanation of symbols

1 Pavement block 2 White flower remover 3 Block joints (sand joints)
4 Water-absorbing sheet containing white flower remover

Claims (2)

  A method of removing white flower by covering a white paved block surface with a water absorbing sheet soaked with white flower remover (liquid).   A method of removing white flower by applying a white flower remover (liquid) to the white paved block surface and covering it with a water absorbent sheet.

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