Building Materials

Pick up the correct statement from the following:

  • A. The percentage of absorption for firebricks varies from 5 to 10
  • B. The percentage of silica in silica bricks is to the extent of about 95 to 97 percent
  • C. Roughly 1 to 2 percent of lime in silica bricks is added to act as binding material
  • D. All the above
Answer: Option D.

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