Q.

When a sliding joint is made what is interposed at the junction of wall and base?

A. rubber
B. timber
C. plastic
D. soil
Answer» A. rubber
Explanation: a sliding joint is made by interposing rubber or neoprene pads at the junction of the wall and the base and the preload engineering company has developed this type of sliding base in which a vertical water stop is inserted between two rubber strips and in the present state of art, single neoprene pads have also used and the main function of these pads is to allow for free horizontal movement of the wall relative to the base by shear deformation of the rubber joint, which does not exceed a critical value of 30 degrees.
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