Question: 3 . The water - cementitious materials ratio is important because it influences all the desirable qualities of concrete. a . What is a typical

3. The water-cementitious materials ratio is important because it influences all the desirable
qualities of concrete.
a. What is a typical water-cementitious materials ratio for normal strength concrete?
b. What is the minimum water-cementitious materials ratio for hydration only?
c. Why is extra water necessary?
d. Briefly describe how super high strength concrete (f'c =15,000 psi) can be made.

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