Kindly give the expansion joint treatment in buildings
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Kindly give the expansion joint treatment in buildings
Rohan Chaugule
Treatment methods for expansion joints in various elements
1) Walls: The joints in the wall are not left exposed. They are covered with covering sheets, which may be of aluminum, hardboard, A.C. sheet, or timber plank. Normally A.C. sheet is used to cover the joint. The covering sheet is fixed to the wall on one side of the joint with screws and on the other side by screws through oval-shaped slots. The oval slots permit movement at the joint without causing any damage to the covering sheet.
Expansion joint in the roof shall invariably be provided with a joint filler and water bar. Joint in-floor shall be invariably sealed to prevent accumulation of dirt, dust, therein.
The joints in the wall are not left exposed. They are covered with covering sheets, which may be of aluminum, hardboard, A.C. sheet, or timber plank. Normally A.C. sheet is used to cover the joint. The covering sheet is fixed to the wall on one side of the joint with screws and on the other side by screws through oval-shaped slots. The oval slots permit movement at the joint without causing any damage to the covering sheet.
Expansion joint in the roof shall invariably be provided with a joint filler and water bar. Joint in-floor shall be invariably sealed to prevent accumulation of dirt, dust, therein.
Framed Walls: In the case of a framed structure, it is necessary to provide two frames, one on either side of the expansion joint. The treatment of joints is similar to those given to the masonry wall expansion joint.
3) Roofing Slab: The gap of the joint should be sealed with a water bar and sealing
compound. In order to prevent cracks in the masonry above or below the expansion joint
R.C.C. or plain concrete bed blocks should be provided in the masonry below the
expansion joint in the slab.
Some new methods used for the treatment of Expansion joint in the present time
1) In this method, a combination of fiber tape and adhesive material is used to cover the expansion joint.