Author: Pooley, Henry
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A reply to J. Singleton-Green, Esq., B.SC., A.M.I.Struct.E. Sir,-If the discussion in your paper upon Concrete Roads is to be continued for the benefit of those really interested in this important branch of engineering it appears necessary to focus it upon those lines which lead to useful information.
The following simple problem in Graphic Statics is sfbpplied by The Bennett College, Sheffield, the Governor of which will give a prize of 10s. for the best solution. In allotting points, neatness will receive the same consideration as accuracy.
With the gradual raising of concrete engineering into a definite branch of science, the need for accuracy in every detail and, therefore, for testing at each successive step, has brought about the introduction of quite a large number of appliances used in controlling operations. Such checking of operations is required not only in connection with the primary materials-cement, sand, the larger aggregates and water-but the secondary adjuncts, including reinforcements, waterproofing or other ingredients, and also the mixtures at various stages, as well as the completed work, whether this be in the form of mass construction or moulded units.