. Bulletin of the Department of Agriculture. Agriculture; Agriculture. £ffect of O/l oh Tens/le Strength of /-3 Mortar _ (Ottawa Sa/ygJ Age. 7 Days 28D*ys. 6 Mo/fTHS. / Year. 2 Years ~L=kd S~ y Oil No. 6464. Per cent of oil. Fig. 1.âEffect of oil on tensile strength of 1:3 mortar. The materials used consisted of Portland cement, river sand, crusher-run gneiss, river gravel, and various kinds of petroleum residuum oils. The mechanical analysis of the sand, stone, and gravel used is given below: Table 3.âMechanical analysis of sand, stone, and gravel. 1G Sand. Stone. Gravel. Sieve No. Per
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. £ffect of O/l oh Tens/le Strength of /-3 Mortar _ (Ottawa Sa/ygJ Age. 7 Days 28D*ys. 6 Mo/fTHS. / Year. 2 Years ~L=kd S~ y Oil No. 6464. Per cent of oil. Fig. 1.âEffect of oil on tensile strength of 1:3 mortar. The materials used consisted of Portland cement, river sand, crusher-run gneiss, river gravel, and various kinds of petroleum residuum oils. The mechanical analysis of the sand, stone, and gravel used is given below: Table 3.âMechanical analysis of sand, stone, and gravel. 1G Sand. Stone. Gravel. Sieve No. Per cent retained. Sieve No. Per cent retained. Sieve No. Per cent retained. } inch I inch 10 20 30 40 60 80 100 â A 11 17 42 66 87 93 96 99 Inch. i i Inch. 1 3 J 1 I Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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