Problem
1. Why is strength the property most valued in concrete by designers and quality control engineers?
2. In general, discuss how strength and porosity are related to each other.
3. Abrams established a rule that relates the water-cement ratio to strength of concrete. List two additional factors that have a significant influence on the concrete strength.
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.