Mr M. K. Hurst (M)
I was very interested to read of the application of post-tensioned slabs to a major building in the UK, never having really understood why the method has lacked popularity there. It is a routine form of construction in Australia, the USA, the Far East, and South Africa, where its economy has been recognised for many years. I have just completed the design of a building in Botswana, using slab post-tensioning technology from South Africa. In that building the slab was 200 mm thick with a column spacing of 6.3 m in each direction. This was a cheaper solution than the alternative
in reinforced concrete.