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Discussion

Consider the following statements about cement standards.
1. They specify both chemical and physical requirements.
2. They define the test methods to be used.
3. A cement meeting the chemical requirements automatically complies.

  • A.1 only
  • B.All of them
  • C.1 and 2 only
  • D.3 only

Answer: C

The first two are correct. The third ignores the physical requirements, and a cement may satisfy every chemical limit while failing on setting time, soundness or strength. Compliance requires every clause to be satisfied together.

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