SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) Construction Materials and Management Concrete
Which among the following is a reason for concrete scaling?
1
Exposure of concrete to freezing and thawing cycles before the concrete gains the required strength (27 MPa)
2
Use of low water-cement ratio, which impedes deeper penetration of water
3
Curing for longer than needed
4
Late drying of concrete that also helps the surface attain the desired strength