Building Maintenance

When exposed to fire, concrete has very little strength left after:

  • A. 500oC
  • B. 300oC
  • C. 200oC
  • D. 600oC
Answer: Option D.
Explanation: 

Concrete decomposes when exposed to heat. Water evaporates, sand, gravel become molten lava like. Up to 200oC, no changes are noticed. At about 600oC, significant lossoccurs. At 800-1000oC, it completely gives in.

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button
error: Alert: Content is protected !!