. Engineering research series . woui ^mvdds H~2d ^dunoa wi mokiiyiy 3Aice3iwwoD Physical Properties of Densi Concri te 33 TABLE COMPRESSIVE STRENGTH OP GRAVEL OON. c WeJghl per cubic i t - - ^ la pounds Q *cg s Age i Age Age Alt / 5 o 12 da. 28 da. 3 mo. 1 yr. in.:; - l l i ;>i.;. :;. 7 •The wet mixture. ? Ige i 1 days. lit [mate unit al reaa inpo la per square Inch. \-. Age 8 mo. 1 yr. 604 574 2505 2401 4367 4180 5^;;7 4778 6733 6656 6273 6640 580
. Engineering research series . woui ^mvdds H~2d ^dunoa wi mokiiyiy 3Aice3iwwoD Physical Properties of Densi Concri te 33 TABLE COMPRESSIVE STRENGTH OP GRAVEL OON. c WeJghl per cubic i t - - ^ la pounds Q *cg s Age i Age Age Alt / 5 o 12 da. 28 da. 3 mo. 1 yr. in.:; - l l i ;>i.;. :;. 7 •The wet mixture. ? Ige i 1 days. lit [mate unit al reaa inpo la per square Inch. \-. Age 8 mo. 1 yr. 604 574 2505 2401 4367 4180 5^;;7 4778 6733 6656 6273 6640 5803 6180 TABLE 10 COMPRESSIVE STRENGTH OF GRAVELCONCRETE, SERIES II (Each Result from the Tost of One Cylin-der Sxl»i) Sacks of ce-ment per cu. yd. + ()() () Ultimate unit stress in pounds per square inch Age 2S days Age 3 mo. 384 289 2060 2037 1491 2063 3332 3809 4711) 5785 6880 5660 6120 5500 6210 *The very wet wet mixture. TABLE 11 COMPRESSIVE STRENGTH OF GRAVELCONCRETE, SERIES III (Each Result the Average of TestsTwo Cylinders 8xl6) of Sacks of ce-ment per of con-crete
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