Question:medium
What is the minimum grade of concrete recommended in coastal areas according to IS 456:2000?
What is the minimum grade of concrete recommended in coastal areas according to IS 456:2000?
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For durability:
\[
\boxed{
\begin{array}{c|c}
\text{Exposure Condition} & \text{Minimum Grade} \hline
\text{Mild} & \mathrm{M20}
\text{Moderate} & \mathrm{M25}
\text{Severe / Coastal} & \mathrm{M30}
\end{array}
}
\]
Updated On: Jul 24, 2026
- M20
- M25
- M30
- M15
Show Solution
The Correct Option is C
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