Expansion joints are structural joints between two concrete structures to accomodate movements of each structure. This provide a fre movements upon thermal expansion. It is mandatory to provide such joints for big construction, that is longer than 20 meter.
Thies joints must be sealed properly to protect from water seepage throu the joints. Expansion joint sealing is done using various sealants and joint tapls to make completly water tight the surface
It is very important to waterproof bathrooms during its construction time. It is very difficult to arrest water seepage from an existing bathroom which is in use. The cost of
PU grouting is a specialised technique that involves the injection of expanding polyurethane to stop any water flowing down or through cracks or to fill voids under slabs, concrete joints or behind concrete walls and
The APP bitumen membrane, short for Atactic Polypropylene Membrane, is a special waterproofing material that is manufactured from Bitumen. They comes in rolls. Each roll measures 10 metres by 1 metre
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