Concrete
What is the volume of concrete needed to pour a part of the sidewalk 100 cm long, 50 cm
wide and 10 cm high?
How much concrete would you need to pour a parking lot of 10×10 m and thickness of
0,1 m?
How many concrete mixers do you order (trucks specialised in transporting concrete),
when one can fit 5m 3 of concrete?
Paving
How many paving stones with an edge size of 10cm do you need to pave our piece of sidewalk? Verify with an experiment!
How many paving stones do you need to buy when you need to pave a sidewalk that is 30 metres long and 0,5m wide?
Estimate, how many smaller stones with the edge size of 5cm would you need? Verify with an experiment.
Is it worth to pave with larger stones or smaller stones, when a larger one costs 100 CZK and the smaller costs 50 CZK?
Gravel
How many cubic metres of gravel would be needed to fill our part of the sidewalk in a 5cm layer?
How many cubic metres would be needed to fill a road 2 metres wide and 100 metres long, for the gravel layer to be 10cm high?
How many tons of gravel are you going to use when you know, that 1m 3 of gravel weighs 1,2 tons?
How much will the sidewalk cost, if a transport of 2 tons costs 500, – CZK and a ton of gravel sells for 500, – CZK?