Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 151
t of the bob; h = the distance fallen through;P= centre load;X = deflection. ThenHence Wk = iPK P=2Wh+\. 77. Machines for Testing Cement—Cement mortar can be formed into cubes, and after hardening can be tested in the 120 EXPERIMENTAL ENGINEERING. [§7/. usual testing-machines for compression; but… … Fig. 64.—Fairbanks Cement-testing Machine. formly, and absolutely in the line of the axis of the specimen;and to make different tests comparable, the specimen, or as itis called, the briquette, must be always of the same shape andsize, and made in exactly the same manner. The engraving(Fig. 64)…
Building materials · Machinery
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