For M25 concrete ,what is the maximum compressive strength
at 28 days ?

Answer Posted / suresh kumar

150*150*150 cube mould area OK
Grade of m25/
Target strength FCK+1.65*s
S. Is standers show in is 456
20 mm agg.
OK.

Formula is. 20+1.65*4
25+6.6 =31.6 n/sq mm

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