We were involved in pumping in a high strength concrete which had chemical agents to combat the effect of salt, as this was in a coastal area.
The machine used was the 31HT Telescopic Truck Mounted Concrete Pump as we needed to reach up through the purlins and access the slabs at the top of the building.
A 24m pump would not have been big enough and a larger machine would not have been able to open up in an area with such a small footprint.