Q69
In method 3 the restoration is done by addition of ____________
A.
Metal sleeve jacket
AnswerB.
Aluminium jacket
C.
Steel jacket
D.
Water proof jacket
Answer: Option A
Solution
Answer: Option A
Solution:
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.