engineering recuitment PPSC JE Civil Mock Test 2022 Reinforced Concrete Structures Prestress Concrete
IS : 1343 – 1980 limits the minimum characteristic strength of pre-stressed concrete for post-tensioned work and pretension work is
1
25 MPa, 30 MPa respectively
2
25 MPa, 35 MPa respectively
3
30 MPa, 35 MPa respectively
4
30 MPa, 40 MPa respectively