Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 368
way greater strength and uniformity can be obtained at less expense than by the addition of cement. A concrete composed separately of several of the commercial sizes of broken stone, gravel, sand, etc., is always expensive. The coarser size stone, passing a 2-^-inch ring, with the voids filled by… … Arrangement of Forms and Twisted Steel Rods, Thirty-six-inch Floor Eastern Elevator. Top View. cult to properly proportion by the ordinary laborer. Equally good results would be obtained by run of crusher, sand and cement, giv- ing only three ingredients to watch, and resulting in a very material…
Engineering
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