VideRime Staff asked 5 years ago
What is the meaning of the designation ‘M30’ concrete suggested for a reinforced cement work?
a) The mix characteristic compressive strength of 150 mm size cube at 365 days is 30 N/mm2
b) The mix characteristic compressive strength of 100 mm size cube at 28 days is 30 N/mm2
c) The mix characteristic compressive strength of 150 mm size cube at 28 days is 30 N/mm2 (Ans)
d) The mix characteristic compressive strength of 150 mm size cube at 28 days is 300 N/mm2
