KEY IN COLUMN
since the height of column is very large,
hence it is not possible to cast the column at
one time, to cast the column later the key is
made at the junction so that the proper bond
between the old concrete and new concrete is
formed.
hence it is not possible to cast the column at
one time, to cast the column later the key is
made at the junction so that the proper bond
between the old concrete and new concrete is
formed.
Comments