Question

For a prestressed concrete bridge beam, a minimum clear spacing of the cable or group of cables should be

• A. 25 mm
• B. 25 mm or 6 mm plus the largest size of the aggregate
• C. 40 mm
• D. 50 mm

Answer 1

The correct option is C 40 mm

The minimum clear spacing between groups of cables or ducts of grouped cables shall be greater of the following:
(i) 40 mm
(ii) 5 mm plus maximum size of the aggregate.