Computer · Concrete Technology
In the designation of a concrete mix (e.g., M20), the letter 'M' and the specified number stand respectively for 'Mix' and the characteristic compressive strength of:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1125 mm cube at 28 days
- 2150 mm cube at 28 days✓
- 375 mm cube at 28 days
- 4100 mm cube at 28 days
Correct answer
150 mm cube at 28 days
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