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The Structural Engineer, Volume 66, Issue 24, 1988
The use of raft foundations in the UK has led to a general adoption of the type, similar to the example shown in Fig 1. These usually incorporate stiffened 'edge' beams with a total foundation depth of approximately 600mm. This is an ideal solution for highly compressible, frost susceptible soils but, in more favourable soil conditions, a more economic solution might be found. J. O'Rourke and A. Robinson
The use of 'stainless steels' to withstand corrosive environments is well established in many constructional applications involving loadbearing components. It would appear, however, that structural engineers are frequently not well informed about the nature and properties of these materials. The generic term, stainless steel, is actually used to describe a wide range of alloys, based on iron with controlled proportions of chromium and usually other elements such as nickel and molybdenum. Their properties vary considerably with composition and it is unfortunate that the epithet 'stainless' has sometimes been interpreted too literally. It should be recognised that the corrosion resistance of these alloys is dependent on the integrity of an invisibly thin surface film of oxide and, in circumstances that cause this protective layer to be undermined, various forms of localised attack may develop. C.L. Page and R.D. Anchor
Most human endeavour entails some degree of risk. Such risk may be commercial, can relate to meeting or failing to meet a programme or performance criteria, or may concern safety considerations, i.e. risks to life or health. S.B. Tietz