File:Engineering research series (1915) (14771656895).jpg

Identifier: engineeringresea16univ (find matches)
Title: Engineering research series
Year: 1915 (1910s)
Authors: University of Texas. Bureau of Engineering Research
Subjects: Engineering
Publisher: Austin
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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give those for the broken stone concrete. On thesecurve sheets will be found a point for the test of each beam.The light curves were determined by joining in order the pointsshowing the results of individual tests for each series, while theheavy curves were obtained as already described for the com-pressive tests and represent average values of all series for aconcrete of a given coarse aggregate and of a certain age. Particular attention is called to the results of the tests on thewet mixture and the very wet mixture of Series TT. Theseare shown in Figs. 30 to 32. TABLE 23 MODULUS OF RUPTURE OF GRAVEL CONCRETE, SERIES IT (Each Result from Test of One Beam) Sacks of cement per Modulus of ■upture in pounds per square inch cu. yd. of concrete Age 12 days Age 28 days Age 3 months 1.66 95 132 3.80 290 436 547 *5.54 366 401 t5.86 (5.82) 4(14 563 690 5.93 (3.96) 519 435 602 8.45 544 520 470 9.67 551 527 11.55 (11.50) 611 581 *The very wet mix.tThe wet mix. 60 University of Texas Bulletin
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