Concrete Technology and Design of Concrete Structures

Cube strength of controlled concrete to be used for pretensioned and post-tensioned work respectively should not be less than_____.

  • A. 35 MPa and 42 MPa
  • B. 42 MPa and 35 MPa
  • C. 42 MPa and 53 MPa
  • D. 53 MPa and 42 MPa
Answer: Option B.

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