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By Richard Bean [ 14/10/2009 ] Publishing Free Articles Zone articles is subject to our Publisher's Terms Of Service |
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The problem of damp proofing arises due to certain reasons. Absence of damp proof course or failure of the present course gives rise to problems of damp proofing. Various materials used in construction activity are porous. That means they allow water to pass through them. Examples of such materials are brick, mortar and stones. They allow damp from the ground to rise which carries salts that absorb moisture. The examples of such salts are chlorides and nitrites. This is the reason of wall dampness. It usually happens during high humidity seasons. The internal plaster can get broken, decorations can get spoiled and paints fall off. Therefore, damp proofing is a requirement. It is a measure to stop dampness to save walls from being damaged. Damp proofing treatments are either chemical or electrical in nature.
A method widely used today for damp proofing is of silage diffusion. A concentrated silage siloxane cream is inserted into mortar course to form a damp proof course in existing walls. It is inserted by the use of a small gun or a pump into small holes drilled into mortar course.Sometimes,replastering is also required to walls already damaged due to discoloration.But it is advisable to get this done by an approved agent or an installer. Utmost care is to be taken of this cream. It is to be stored in a cool, dry place and should be protected from frost. It is an irritant too. So it should be kept away from young children. It takes almost 6 to 12 months for the damp to dry out. Winter conditions might make it harder for the wall to dry. Also thicker walls take much longer time to get dried off the damp effect. But Replastering prevents any damage to internal paints and decorations.
Second method is called siliconate transfusion. In Siliconate Transfusion, a transfusion unit feeded by gravity allows a slow, but even distribution of the siliconate fluid into the damped wall and allowed to settle to form a damp proof barrier. There is no wastage involved here.
Another method is Siliconate Injection.Siliconate injection is recommended, primarily for single brick walls. The fluid is injected into the wall with single lance under low pressure. This fluid also forms a barrier against dampness. This method is not too much into use as it causes wastage due to hidden fissures or empty spaces.
About the author:
Author writes for structural waterproofing, Building Waterproofing and Cellar Conversion.
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