Practice Quiz

Civil Engineering PE

Category - Struct. Materials

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Which of the following elements does the American Concrete Institute (ACI) recommended concrete mix design method use to produce the ideal durable concrete suitable for a local environment?

1. Strength
2. Economy
3. Weather and chemical resistance
4. Wear resistance
5. Appropriate cement type
  1. 1, 2, 3, 4
  2. 1, 3, 4, 5
  3. 1, 2, 4, 5
  4. All of the above
Explanation
Answer: D - The ACI recommended concrete mix design method involves all of the listed elements to produce the ideal durable concrete suitable for a local environment. These elements are balanced by ensuring the designed concrete mix controls the proportions used, material quality, material handling, concrete placing and curing. ACI also recommends that the mix design be checked in the field using trial batches, and adjustments made when necessary.
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