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Meaning of m20 and m200 concrete
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Answer Posted / adeel
M20 or M200 shows 28 days compressive strength of concrete cylinder test.
*M20 is strength of 20N/mm sqr
*M200 is strength of 200kg/cm sqr
* M shows the mix rati of concrete for M20 the rati is 1: 1.5 : 3
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