What is the typical range of strain corresponding to the peak stress (ultimate strength) in ordinary concrete?
- A0.001 – 0.002
- B0.002 – 0.0035Correct
- C0.0035 – 0.005
- D0.005 – 0.007
Solution
Concept
Strain at peak stress
Step-by-step solution
1. The strain at peak stress is about 0.002–0.0035.
Explanation
Ordinary concrete reaches maximum stress at about 0.002 and crushes at 0.0035.
Why the other options are wrong
Other ranges are too small or too large.
Shortcut
0.002 peak; 0.0035 crush.
Correct answer: B) 0.002 – 0.0035