Question

The compressive strength varies from  ____________

(a) < 200 kg/cm^2

(b) > 550 kg/cm^2

(c) 200-550 kg/cm^2

(d) 700 kg/cm^2

The question was posed to me in examination.

Question is from No Fines Concrete, High Density Concrete in portion Special Concrete and Concreting Methods of Concrete Technology

Answer 1

The correct answer is (c) 200-550 kg/cm^2

For explanation I would say: Compressive strengths varying from 200 -550 kg/sq cm can be produced using steel punchings as coarse aggregate.