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The compressive strength of OPC increases with time:

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+1 vote
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in Basic Civil Engineering by (111k points)
The compressive strength of OPC increases with time:

(a) True

(b) False

The question was asked in an interview for internship.

This key question is from Grades of Cement in chapter Materials for Construction of Basic Civil Engineering

1 Answer

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Best answer
The correct option is (a) True

The best I can explain: Cement blocks can be tested at 1 day, 3 days, 7 days and 28 days.  Usually 1 day doesn’t give any result.  Strength of 43 grade OPC at the end of 3 days is 23, 7 days is 33 and 28 days is 43.  So, it increases with time.

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