The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 328
Fig. 2. Experiment 10.—A block of portland stone, 2 ft. 11 in. long,and 9 by 9 inclies, broke with a weight of 38 cwt. {See fig. 3.)ffote.—A block, cemented with roman cemeot, would not bear theweight of the stone, iu a similar position. … Fig. 3. Trials in a Hydraulic Press. Experiment 11.—A block, all portland cement, 18 inches highand 9X9 inches, bore a pressure equal to IO85 tons on the squarefoot. 12.—A mixture, 1 sand and 1 cement. Expt. 80 tons sq. foot. 80 44i Expt. 13.—A mixture, 4. „ 1 „ Expt. 14.—A mixture, 7 „ I „…
Architecture · Civil engineering · Science
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