Concrete in the country / [American Cement Company]. (1910)
American Cement Company · Association of American Portland Cement Manufacturers · leaf 21
add enough water to wet the gravel and sand thoroughly, spread thecement evenly in a thin layer ox er the sand and gra\ el, and turn over, as describedpreviously, at least three times, adding the rest of the water necessary to get therequired consistency while the materials arc being turned. It… … Fig. 10.—Mixing the Stone (or Gravel) with the Sand and Cement. Number of Men For the above operation only two men are required, although more can beused to advantage. If three men are available, let two of them mix as describedabove and the third man supply the water, help mix the concrete by…
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