1) weight of sand amp; aggregate required for 50 kg cement bag for m25 grade of concrete. as we find 11 bags of cement,624 kgs sand amp; 1194 kgs aggregate for 1 cubic metre of m25 grade of concrete. hance 11 bags cement 624 kgs sand. for 1 bag of cement 62411 57 kgs sand. hance 11 bags of cement 1194 kgs aggregate.