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Q: According to IS 10262 : 1982, what should be the compressive strenght of OPC of grade C?
  • A. 42.5 to 47.5 MPa
  • B. 47.5 to 52.5 MPa
  • C. 32.5 to 37.5 MPa
  • D. 37.5 to 42.5 MPa
Correct Answer: Option A - • According to IS 10262 : 1982 has classified the OPC grade from A to F depending upon the 28 days compressive strength as : • Grade A – 32.5 to 37.5 MPa • Grade B – 37.5 to 42.5 MPa • Grade C – 42.5 to 47.5 MPa • Grade D – 47.5 to 52.5 MPa • Grade E – 52.5 to 57.5 MPa • Grade F – 57.5 to 62.5 MPa
A. • According to IS 10262 : 1982 has classified the OPC grade from A to F depending upon the 28 days compressive strength as : • Grade A – 32.5 to 37.5 MPa • Grade B – 37.5 to 42.5 MPa • Grade C – 42.5 to 47.5 MPa • Grade D – 47.5 to 52.5 MPa • Grade E – 52.5 to 57.5 MPa • Grade F – 57.5 to 62.5 MPa

Explanations:

• According to IS 10262 : 1982 has classified the OPC grade from A to F depending upon the 28 days compressive strength as : • Grade A – 32.5 to 37.5 MPa • Grade B – 37.5 to 42.5 MPa • Grade C – 42.5 to 47.5 MPa • Grade D – 47.5 to 52.5 MPa • Grade E – 52.5 to 57.5 MPa • Grade F – 57.5 to 62.5 MPa