RMD's Slipform system was used for the construction of the 49m high control tower at Santiago International Airport in Chile.
The two upright sections of the H-section tower are 700mm thick, tapering inward externally to measure 500mm at the centre.
The cross-member is a constant 500mm in thickness.
Total construction of the tower from piled foundations to completion took just three weeks rather than the scheduled four weeks. But, with a rate of climb of 7.5m every 24 hours, the Slipform forming of the tower was completed in just over seven days.
Vertical plumb of all the elements is within just 9mm. This compares with RMD's assured tolerance on this height of structure of 32mm and the client's stipulated acceptable tolerance of 60mm.
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