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ratio of rcc 1:1.5:3 grade of concrete ,7days& 14&28 days
after curing how much strength of compressive strength in
rcc slab
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Answer Posted / guruprasad
In General for Nominal Mix it is considered as M20 Grade. So its 7 days and 28 days strength shall be not less than 50% and 100% respectively. For design mix it may workout to M25/M30 Grade depends upon the input material.
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