Size of diabolo for Future Tendon (above opening) are too big (now almost 400 mm in diameter).
PT Supplier should make the maximum size of this not to be more than 250 mm.
To do so, please refer Attachment 2. The duct connecting both diabolos (as indicated by "Deviation Tube" in Attachment 2) shall be made in a curve,
instead of straight pipe as presently done at Yard (refer Photo 1).
This deviation tube may be made by HDPE. In our design drawing for External Tendon at Pier Segment C5, it is also shown that tendons are in vertically curved duct.