Yup. Grade of concrete denotes it's characteristic strength.
M10, M15 and M20 are known as ordinary concrete.
From M20 to M60, they are known as standard concrete.
M65, M65 and upto M100 are known as high performance concrete.
As per IS 456-2000 the M20 is the minimum grade of concrete for...
What is the physical interpretation of natural frequency?
Like we can measure weight with spring balance, can measure length with measure tape.
How to measure natural frequency?
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