4 cubic metres, you can search online for concrete calculator there are a few of them
Eg https://source4me.co.uk/calculate_concrete_mix.php
Although take the water quantity with a pinch of salt, disclaimer I've never used this site but there are plenty more.
Have you considered volumetric on-site mixing? Most concrete companies will also do a line pump for around £350 which will pump over 100 metres horizontally.
Have you considered volumetric on-site mixing? Most concrete companies will also do a line pump for around £350 which will pump over 100 metres horizontally.
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