I hope this isn't OT, but I am doing it myself. I have been asked to transport a block of reinforced concrete. It is approx. 20 cu. metres and is supposedly 80 tonnes. This seems a bit on the heavy side to me, I had thought reinforced concrete was approx. 3 t/m which would give a weight of 60 tonnes (ish). I suppose it is a 'piece of string' question as I don't know the specification of the materials used. OTOH, could different mixes cause a weight increase of 25/30%? For info, the block is 'U' shaped and 3 metres in each direction. The central gap is 1m wide and approx. 2.5m high. The whole is supported on a steel frame for transportation. Overall dimensions & weight given include this steel frame.
Many thanks
Nick.