Author: Faber, Oscar
1st January 1933
First published: 1st January 1933
Standard: £9 + VAT
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We very much regret that the following printers' errors occurred in the December issue
of The Structural Engineer :- Page 398- "Stewart & Partridges,Limited" should read
"Stewart & Partners, Limited" Page 404- The figure "330 O.D." should read "300 O.D." Page 409-"Chief Surveyor" should read "Chief Quantity Surveyor" Page 42-"Breaking of cracks" should read "Breathing of Cracks".
To the Editor of The Structural Engineer. Water-Cement Ratio. Sir,-In reference to Mr. C S Gray’s letter,Professor Duff A Abrams states that "Aggregates of equivalent concrete making qualities may be produced by an indefinite number of different gradings of a given material." "Aggregates of equivalent concrete qualities may be produced from materials of widely different size and grading." "In general, fine and coarse aggregates of widely different size or grading can be combined in such a manner as to produce similar results in concrete." The meaning seems to point clearly to the
fact that size or grading may vary widely in each aggregate, but not the different aggregates unless they have equivalent concrete qualities.
W D Williams
The future will always hold interest for those who are full of vigour and enterprise and, as a comparatively young and very progressive Institution, we are looking forward with an intense interest to the future and the possible developments in Structural Engineering. It is not intended to put forward any attempt at a prophecy, but rather to indicate in some manner the developments which are at present in their infancy, and search among these for guidance as to the direction in which some headway is likely to be made in the near future.