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Thanking the lecturer and opening the meeting for discussion the Chairman said they had had a most interesting lecture. Mr. a’Court had thrown out a wealth of ideas and the most intriguing one was that as concrete was such a readily used material we were
stretching it to the limit to which it could be used. He wondered if that was so, for when they could produce a light weight concrete which was strong there was a whole range of other uses which had not yet come into being.
Two ways of approach to prestressed concrete are considered, and results of research discussed. Recent tests carried out on composite partially prestressed bridge slabs by the Civil Engineer’s Department, The Railway Executive, Eastern Region, are described and some results of fatigue tests mentioned. The essential features of prestressed concrete are investigated by distinguishing five different cases of under-reinforced
prestressed concrete beams and three classes of prestressed concrete (monolithic members with bonded steel, monolithic members with non-bonded steel, and an assembly of blocks without adhesion at the joints and non-bonded steel).
Mr. Walter C. Andrews, who will take office on October 11th, as President of the Institution for the Session 1951-1952, represents the younger generation of engineers. He is of the twentieth century and is in fact the first President of the Institution to have been born after the close of the nineteenth century. At the time of his birth
in London on March 1st, 1902, Queen Victoria had been dead just over a year and with the new reign had come a quickening in the development of new ideas in every walk of life, and in none more marked than in engineering. The age of steel and concrete had dawned, and six years later saw the foundation of the Concrete Institute, afterwards renamed the Institution of Structural Engineers.