When exposed to fire, concrete has very little strength left after:(a) 500^oC(b) 300^oC(c) 200^oC(d) 600^oCThis question was addressed to me during an interview.My doubt is from Building Services topic in section Building Construction of Basic Civil Engineering

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

1.	When exposed to fire, concrete has very little strength left after:(a) 500^oC(b) 300^oC(c) 200^oC(d) 600^oCThis question was addressed to me during an interview.My doubt is from Building Services topic in section Building Construction of Basic Civil Engineering
Answer» The CORRECT ANSWER is (d) 600^oC Explanation: CONCRETE decomposes when exposed to heat. WATER evaporates, sand, gravel become molten lava LIKE. Up to 200^oC, no changes are noticed. At about 600^oC, significant lossoccurs. At 800-1000oC, it completely gives in.

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When exposed to fire, concrete has very little strength left after:(a) 500^oC(b) 300^oC(c) 200^oC(d) 600^oCThis question was addressed to me during an interview.My doubt is from Building Services topic in section Building Construction of Basic Civil Engineering

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