It isn't clear what "units" you are talking about.
3
3 cubic meter
About One
With dry sand. 1.602 tonnes
assuming kilos means kilograms. In that case, there is no definite answer. Kilograms are units of mass and ite dpends on the consistency (or density) of the cement mixture. A cubic meter of cement can have various densities.
it is 100 bags of sand/ballast
The density of chromite sand can vary, but on average it is around 2.7 tons per cubic meter. Therefore, 1 ton of chromite sand would be approximately 0.370 cubic meters.
The number of bags of sand in a cubic meter depends on the size of the bag. Typically, a standard bag of sand weighs around 25 kg and contains about 0.015 cubic meters of sand. Therefore, you would need approximately 67 bags (1 cubic meter / 0.015 cubic meters per bag) to fill 1 cubic meter, assuming no voids or compaction. Adjustments may be necessary based on the specific bag size used.
100
The weight varies; but if it's dry sand, the cubic meter will weigh around 1500 kilos.
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.
It depends of course a bit on the size of the wheelbarrow and on how high you want to pile up the sand. But a typical wheelbarrow might hold about 85 liters of sand. 1 cubic meter equals 1,000 liters. So you would need about 12 wheelbarrow loads to get 1 cubic meter.