Question

High strength/high grade concrete is preferred for pre-stressed concrete for controlling

• A. Ductility
• B. Brittleness
• C. Shrinkage
• D. Creep

Hint:

High-strength concrete in prestressed members helps reduce \[ \boxed{ \text{Creep} \quad\text{and}\quad \text{Shrinkage losses}. } \]

Answer 1

The Correct Option is D

Step 1: Recall the requirements of prestressed concrete. Prestressed concrete requires high-strength concrete to minimize long-term losses of prestress.

Step 2: Identify the controlled property. High-strength concrete exhibits lower creep, thereby reducing prestress losses over time. Hence, \[ \boxed{\text{Creep}} \] is the correct answer. Therefore, \[ \boxed{(D)} \] is the correct answer.