Building Maintenance

In method 3 the restoration is done by addition of_____.

  • A. Metal sleeve jacket
  • B. Aluminium jacket
  • C. Steel jacket
  • D. Water proof jacket
Answer: Option A.

Metal sleeve jacket is added in method 3 to do the restoration. In this method preload is applied before the repair of the damaged concrete and removed after the completion of repairs and a metal sleeve jacket is installed around and beyond the damaged area and the gap between the metal sleeve girders is filles with epoxy grout by pressure injection.

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