PROPORTIONS FOR 2500 LB. PER SQ. IN. CONCRETE Based on 28-day compressive strength of 6 by 12-in. cylinders. Mixing water, including moisture in aggregate, 6.7 gal. per sack of Portland cement. Proportions expressed in terms of dry and rodded volumes of aggregate. Thus 1: 1.7 3.4 indicates 1 volume of cement, 1.7 volumes of fine aggregate and 3.4 of coarse aggregate. No allowance has been made for bulking of aggregates due to moisture or loose measurement. No. 4 to 4 in.. No. 4 to 1 in. 3 to 1⁄2 to 1 11.63.211.8:3.112.1:3.01:2.4:2.71: 2.92.4 4 11.3:2.81 1.52.71:1.72.61:2.0: 2.41: 2.4:2.2 6 to 7 1:1.0:2.211.1:2.211.3:2.11:1.5: 2.01: 1.8:1.8 8 to 10 10.5 1.41 0.6 1.41 0.71.41 0.8 1.41:1.0: 1.3 1⁄2 to 1 1:1.5: 3.71 1.73.71:2.0: 3.51:2.2:3.41:2.73.1 1⁄2 to 3 to No. 4 to 11⁄2 in... 6 to No. 4 to 2 in... % to 1 in. 3% to 11⁄2 in.. % to 2 in. 4 to 11⁄2 in.. % to 2 in.. 1470 1:1.4:4.211.64.11: 1.9: 4.11 2.2:4.0 12.5 3.8 1:1.2:3.711.3: 3.61:1.5: 3.611.8:3.51:2.1:3.3 7 1 0.9 2.91 0.9 2.81: 1.1:2.8 1:1.3:2.81 1.52.6 8 to 10 10.5 1.9 10.5:1.9 1:0.6: 1.9 1:0.7 1.81 0.8 1.8 1⁄2 to 1 1:1.3: 4.9 1:1.4:4.81 1.64.911.9: 4.8 12.2:4.7 1:1.1:4.31:1.2:4.211.3: 4.31:1.64.211.8:4.1 1:0.73.31 0.8: 3.31 0.9: 3.41:1.1: 3.31:1.2:3.3 8 to 10 1:0.42.212.4:2.2 1:0.52.21:0.6: 2.21 0.62.2 7 1⁄2 to 1 3 to 4 6 to 7 1⁄2 to 1 1⁄2 to 1:1.8:3.71:2.0:3.61:2.3: 3.51:2.6:3.31:3.0: 2.9 1:1.4:3.2 11.6: 3.11: 1.9 2.91 2.2 2.9 12.5:2.6 1:1.0: 2.51:1.22.51:1.3:2.41:1.6: 2.31:1.8:2.2 1:0.61.61 0.71.610.8:1.610.9: 1.61:1.0:1.5 1:1.7: 4.11 1.9: 4.11: 2.2:4.0 1:2.53.91:2.9:3.6 1:1.53.61:1.6: 3.611.8:3.512.13.41:2.3: 3.2 1:1.0: 2.9 1:1.2: 2.81 1.3:2.81:1.5:2.71: 1.8:2.6 1:0.61.91 0.6 1.9 1:0.8:1.81 0.9: 1.81 1.0:1.8 1:1.7: 4.71: 1.8:4.7 1:2.1:4.71:2.4: 4.61:2.7: 4.4 1:1.4:4.11: 1.5:4.11: 1.7: 4.11:2.0:4.0 1:2.3: 3.9 1:1.0: 3.21: 1.1: 3.21: 1.23.2 1:1.4:3.211.6:3.1 8 to 10 10.52.110.62.11 :0.72.210.8:2.210.92.1 1:2.0:3.81:2.3:3.81:2.6:3.71:3.0:3.61:3.4:3.3 11.7:3.31:2.0: 3.312.23.212.5: 3.212.92.9 1:1.22.61:1.4:2.611.6 2.61:1.9: 2.512.12.3 8 to 10 10.71.71 0.8 1.7 10.9 1.71: 1.1:1.71:1.2: 1.6 6 to 7 1⁄2 to 1 1:2.0: 4.41: 2.2:4.41:2.54.31:2.9: 4.31:3.3: 4.1 1:2.0:5.0 12.2:5.0 12.5:5.0 12.7: 5.01: 3.24.7 4 11.7 4.31:1.9: 4.31:2.14.31:2.4:4.31:2.7: 4.1 7 1:1.2 3.31:1.4:3.41:1.5: 3.41:1.8:3.41:2.0: 3.3 8 to 10 10.72.210.8:2.21 0.9 2.2 1:1.0: 2.31:1.2:2.3 4 to 3 in. 6 to PROPORTIONS FOR 3000 LB. PER SQ. IN. CONCRETE Based on 28-day compressive strength of 6 by 12-in. cylinders. Mixing water, including moisture in aggregate, 6.7 gal. per sack of Portland cement. Thus 1: 1.7 3.4 Proportions expressed in terms of dry and rodded volumes of aggregate. indicates 1 volume of cement, 1.7 volumes of fine aggregate and 3.4 of coarse aggregate. No allowance has been made for bulking of aggregates due to moisture or loose measurement. 1:1.3:2.71:1.5:2.61:1.72.51:1.9 2.41:2.3:2.1 11.02.31:1.22.211.42.211.62.01 1.91.8 1:0.7:1.71 0.8:1.71 0.9 1.7 1:1.1:1.61:1.3: 1.4 1:0.31.01 0.4 1.01 0.5:1.01 0.5:1.01 0.6 0.9 1:1.2:3.11:1.33.11:1.5: 3.01 1.8:2.91:2.1:2.7 1:0.9 2.71:1.1:2.61:1.22.6 11.4:2.51:1.7: 2.3 1:0.62.01 0.72.01 0.8: 2.01 0.9 1.9 1:1.1:1.8 10.31.21 0.31.21 0.4:1.21 :0.5:1.21 0.6 1.2 1:1.1:3.61:1.2:3.51:1.5: 3.51:1.73.412.03.2 3.011.02.9 11.22.9 1:1.42.911.62.7 10.9 6 to 7 1:0.6 8 to 10 1⁄2 to 1 No. 4 to 2 in. % to 1 in.. % to 11⁄2 in. % to 2 in.. 4 to 11⁄2 in.. 3/4 to 2 in. 3/4 to 3 in. 2.21 :0.72.210.8: 2.21 0.9 2.211.12.1 10.31.41 0.31.31 0.41.41 0.5 1.41 :0.5:1.3 1:1.0:4.111.14.111.2:4.11:1.4:4.111.6: 4.0 3 to 4 1:0.8:3.41 0.9:3.41:1.0: 3.51:1.1:3.41:1.3:3.4 6 to 7 1:0.52.61 0.62.6 10.6 2.7 1:0.7 2.61 0.9 2.6 8 to 10 10.21.61 0.31.61 0.31.71 0.41.71 0.4 1.7 1⁄2 to 1 1⁄2 to 1 1⁄2 to 1 1:1.4:3.11:1.5:3.01 1.8 2.9 12.12.81:2.4:2.6 11.12.61:1.3:2.61:1.52.51:1.7 2.4 12.02.2 1:0.8 2.01 0.8:2.0 11.0 1.91: 1.1:1.911.3: 1.8 1:0.41.21 :0.4:1.2 1:0.5:1.21 0.6 1.21 0.71.1 1:1.4:3.51:1.5:3.41:1.7:3.41:2.0: 3.31:2.3: 3.1 1:1.1:3.01:1.22.9 11.42.911.6 2.81 1.9 2.6 1:0.6 2.21 0.8:2.2 1:1.0: 2.211.12.111.3:2.0 10.41.41 0.41.410.5:1.41 0.61.31:0.7 1.3 11.3: 4.0 1.4:4.0 11.6:4.0 1:1.9:3.91:2.1: 3.8 1:1.0: 3.41:1.2:3.41:1.3:3.31:1.5: 3.31:1.7 : 3.2 1:0.7 2.6 1:0.8:2.51:0.9: 2.61:1.0: 2.611.12.5 10.4 1.6 10.41.61 0.5:1.61 0.51.61 0.6 1.6 1:1.63.21: 1.8:3.212.13.212.4:3.11 2.7 2.9 1:1.32.71:1.5: 2.71:1.7: 2.71:2.0: 2.61:2.3:2.5 6 to 7 10.92.01: 1.02.11 8 to 10 10.5 1.21 :0.5:1.31 1.2: 2.01: 1.4:2.01: 1.5:1.8 0.61.31 0.71.31 0.8 1.2 1⁄2 to 11:1.63.71:1.8:3.71:2.0: 3.7 12.4:3.61:2.6:3.5 3 to 4 1:1.33.11:1.53.111.63.111.93.112.23.0 6 to 7 1:0.9 2.41:1.1: 2.41:1.12.41:1.3:2.41:1.5 2.3 8 to 10 10.5 1.5 10.5:1.51 0.61.51 0.71.51 0.8 1.5 1⁄2 to 1 1:1.6:4.211.8:4.21:2.0: 4.21:2.3: 4.11 2.64.0 1:1.3:3.51:1.5: 3.611.63.611.93.6 12.13.5 1:0.9 2.6 11.02.61:1.12.6 11.3:2.61:1.4:2.6 8 to 10 1:0.5:1.6 10.5:1.61 0.6 1.7 1:0.7: 1.71 0.8 1.7 6 to 7 13. EFFECT OF OILS AND MISCELLANEOUS LIQUIDS ON CONCRETE AND METHOD OF PROTECTIVE TREATMENT Report of the Joint Committee on Standaad Specifications for Concrete and Reinforced Concrete, 1924 1 Signal oil, used by railroads, is a mixture of animal fat with mineral oil. Probably has about the same effect on concrete as lard oils. 2 Some lubricating oils are mixtures of mineral and animal oils. 3 Bureau of Standards tests with concrete tanks show slight roughening of surface at end of 12 months and considerable deposit on surface through saponification. 4 Bureau of Standards noted slight deposit due to saponification at end of 12 months. 1 Bureau of Standards tests with concrete tanks show considerable softening and roughening of surface at end of 12 months. 2 Bureau of Standards noted at end of 12 months considerable deposit on surfaces of concrete tanks containing both boiled and raw linseed oil, due to saponification, but concrete showed no deterioration. |