Poisson’s ratio of cement concrete is about:
Correct Answer: C. 0.15
📈 Poisson’s Ratio of Cement Concrete
Poisson’s ratio (ν) is the ratio of lateral strain to axial strain under uniaxial stress. For normal cement concrete, this value is generally taken as 0.15 (range: 0.10–0.20) for static loading under IS 456:2000. It is lower than that of steel (0.3) and rubber (0.5) because concrete is a heterogeneous, brittle material with internal micro-cracking.
Poisson’s ratio of concrete ≈ 0.15 — option C.
Key takeaway
Concrete ν ≈ 0.15 (range 0.10–0.20). Steel ν = 0.3. These are standard values for structural analysis.