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Electro-osmosis in the treatment of groundwater leaks
How to remove the glue of two pieces glued together: cyanoacrylates, white glue, thermofusible glue, etc.
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Tricks and methods to clean brass. Also to give it an aged appearance
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Content
Leaks of underground water rise from the floor to the walls, and then inside them. Electro-osmosis is a procedure which seeks precisely to reverse the progress of water through the pores of the wall, making it descend and flow away from the house.
This change in the movement of water molecules is induced by the application of electromagnetic fields through the installation of electrodes at the base of the affected wall and a ground nearby. The electrodes, or probes, placed at the bottom of the wall form the positive pole, while the ground serves as the negative pole. Thus the mobile ions are displaced towards the negative pole, dragging the water with them: the wall will dry gradually. It is not an immediate process as it may require several months for the effects to be displayed totally.
When implementing electro-osmosis in a building with damp from the subsoil you can do it actively or passively. In active electro-osmosis models an electric generator is used to create a difference in potential between the positive and negative poles: the effectiveness of the system improves significantly.
By Webmaster
on [05/03/2010 12:38]
Category : Building works and alterations
Comments : 0
Category : Building works and alterations
Comments : 0
How to remove the glue of two pieces glued together: cyanoacrylates, white glue, thermofusible glue, etc.
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The method to separate two pieces that have been glued together will depend largely on the type of glue used. You must also bear in mind that sometimes it will simply not be possible to separate them, or at least it will not be possible without damaging the glued pieces. Some examples:
In the case of thermofusible glues the process is simple: just heat the glue a little so that it softens and you can separate the pieces. A simple hair dryer may be enough for the task.
Carpenter's white glue can be easily removed by wetting the joint with hot water. If you then exert some pressure on the pieces you will be able to separate them without too much trouble.
Pieces glued with cyanoacrylate adhesives are more difficult to separate, but you can do it using acetone. Use a syringe to get the acetone to the point of union where the cyanoacrylate adhesive is, but carefully so as not to stain anything else, because some materials can be damaged by acetone. After leaving it to act for a moment you can then try to pull the pieces apart.
By Webmaster
on [05/03/2010 12:33]
Category : Other jobs
Comments : 0
Category : Other jobs
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