How will find compresive
strenth of M20,M25,M30
after 7day,8day 28day etc
please drive step by step
not shot?

Answer Posted / nisikanta

Take all the cubes & submerg it in water.Then when 7,21,28
days will reach then take out the cube 5 minutes before &
let the surface dry.Then place the cube in Compressive
strength test machine in SSD( saturated surface
dry)condition centrally.When the concrete crushed the
machine will automatically stop & take the reading & then
divide the Force(KN)by its surface area.

Is This Answer Correct ?    9 Yes 1 No



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