The Prestressed concrete compression members should have a minimum average effective prestress of not less than?
A. 1.55n/mm2
B. 1.0n/mm2
C. 1.15n/mm2
D. 1.25n/mm2
Answer:A
The Prestressed concrete compression members should have a minimum average effective prestress of not less than?
A. 1.55n/mm2 B. 1.0n/mm2 C. 1.15n/mm2 D. 1.25n/mm2