Problem
1. What is the usefulness of the extensibility concept? Why would high-strength concrete be more prone to cracking than low-strength concrete?
2. Ideally, from the standpoint of crack resistance, a concrete should have low shrinkage and high extensibility. Give examples to show why this may not be possible to achieve in practice.
3. What is the significance of tensile strain capacity? How can you determine it?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.