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PE Civil Engineering Exam Prep

Category - Civil Engineering

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Which of the following statements regarding concrete used as a building material are generally considered to be correct?

1. Commonly composed of water, cement, aggregate, and admixtures
2. Design criteria is established by the American Society of Civil Engineers (ASCE)
3. Concrete strength is normally tested at 28 days
4. Concrete mixes vary by specific use requirements
  1. 1, 2
  2. 1, 3
  3. 1, 2, 3
  4. 1, 3, 4
Explanation
Answer: D - The statements regarding concrete used as a building material that are considered to be correct are as follow:

- Commonly composed of water, cement, aggregate, and admixtures
- Concrete strength is normally tested at 28 days
- Concrete mixes vary by specific use requirements

ASCE is not recognized as the provider of design criteria for concrete building elements - the American Concrete Institution (ACI) holds that distinction. The ACI building code standards are set in the document ACI 318-05 Building Code Requirements for Structural Concrete.
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