Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, Comstock · leaf 210
t periodsof 24 hours, 7 days, and 28 days for neat tests, longer periods beingnecessary for special experimental purposes. 192. NORMAL CONSISTENCY OF MORTAR.—Thismeans the use of a proper percentage of water in making the pastesfor the pats, briquettes, etc. Various methods are followed formaking… … i i i __^ Fig. 89. Standard American Form of Cement Briquette. paste to such a degree of plasticity that when a ball of the paste 2inches in diameter is dropped upon a hard surface from a height of2 feet it will not crack or flatten.more than half its original thick-ness. 193. FORM OF…
Building · Carpentry · Masonry
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