Dry Mix Proportion For M20

So in dry conditions, we have to add 30 to 35 sand bulkage and add 20 for wastageulkage of sand 35 wastage 20 so 101 it may vary 1 to 1ostly for estimating 1 is taken as constantum all the proportion of the mix ratio 124 7otal concrete part 7aterial calculation formula for concrete.