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You need10.8/(the number of cubic feet of sand in each bag) bags.
Well, darling, if you want a concrete slab that's 5 inches thick, you'll need about 0.012 cubic meters of cement and 0.06 cubic meters of sand per square meter. Just make sure you mix it well and pour it like a boss. Good luck with your project, sugar!
To properly answer this question, one would need to know the volume of a "bag", since "bag" isn't any standard of volume or weight. Typical Portland Cement has a density to 1505kg / cubic meter. In addition, one would also need to know the coarseness of the gravel, as the ability of the sand and cement to fill in the aggregate depends heavily on the average size of the gravel pieces.
To convert the weight of the sand into a volume and find out how much you need you would need to know the density of the sand as the more dense it is the less sand there will be in a 50lb bag and the more bags you would then need to fill the yard
One cubic meter of concrete is equal to 1.308 cubic yards of concrete. If there are 5 1/2 bags of cement in 1 cubic yard of concrete, there would be 7.2 bags in 1 cubic meter of concrete. These are the 94 pound bags of portland cement or roughly 40kg bags so figure 8 bags total. Some will be left over
100
If a 20kg bag of cement=0.1m3 with 100 lots o 0.01 to 1m3 then you will need 12.5 bags per m3. So you need approx 11.5m3 of sand and 144 bags of cement (144 x 0.01 = 1.44m3) to give you a total of 12.94m3
Need to know how many bags of cement I will need for a 20x10 space?
10
The density of sand can vary, but a common value is around 1,600 kg/m^3. Assuming this density, 1 cubic meter of sand would weigh 1,600 kg. If a bag of sand typically weighs around 20 kg, you would need 80 bags of sand to fill 1 cubic meter.
7 bags per 1000 on mortar mix and half a truckload of "mortar" sand aught to do it.
in india, for m-20 cement concrete, for 1 cu.m.- 3.47 quntl cement-0.45 cu.m. sand( fine aggr.)- and 0.90 cu.m. chips( course aggr.), that means 6.94 or 7 of 50 kgs.cement bags so for M-25, for 1 cu.m. 4.03 qntls cement- 0.45 sand- 0.90 cu.m. chips, so 8.06 cement bags
19.5
You need10.8/(the number of cubic feet of sand in each bag) bags.
1 cement 2 sand 3 gravel
well concrete mix is a 1/3 gravel , 1/3 sand and 1/3 portland cement . I hope this helps.
8 kilos sand to the 2 kilos cement.