Question

sample of aggregate and produced on a performed A sieve analysis test was the results shown in Table P5.21. 5.21 TABLE P5.21 Amount Retained, g Sieve Size, Amount Retained, g mm Sieve Size, mm 891.5 1.18 0 25 wola ndi 712.6 0.60 376.7 19 625.2 0.30 888.4 12.5 581.5 0.15 506.2 9.5 242.9 0.075 1038.4 4.75 44.9 Pan 900.1 2.36 noCalculate the percent passing through each sieve. Plot the percent passing versus sieve size on: semilog gradation chart, and b. a 0.45 gradation chart (Figure A.25). What is the maximum size? What is the nominal maximum size? a. a roblem 11. Referring to the aggregate gradations A, B, and C in Figure P5.25, answer the following questions: a. What is the maximum size of each gradation? b. What is the nominal maximum size of each gradation? Classify each gradation each classification. 5.25 dense, open, or gap indicating the reason for as C. 100 A 80 60- 40 20 C 25.0 19.0 0.075 0.30 1.18 2.36 9.5 12.5 4.75 0.15 0.60 Sieve sizes (mm) FIGURE P5.25 Percent passing CO

Answer 1

5.21

Sieve Sieve Size Cummulative Amount % Passing Percentage % Passing Size raised to the Retained Percentage (d/D) 0.45 Retained (%) Retained (%) (mm) (g) power 0.45 100.00 100.00 25.00 4.257 0.00 0.00 0.00 376.70 19.00 3.762 5.53 5.53 94.47 88.38 73.20 12.50 3.116 888.40 13.05 18.58 81.42 506.20 9.50 2.754 7,43 26.02 73.98 64.70 4.75 2.016 1038.40 15.25 41.27 58.73 47.36 900.10 34.57 2.36 1.472 13.22 54.49 45.51 25.31 1.18 1.077 891.50 13.09 67.58 32.42 712.60 18.67 0.60 0.795 10.47 78.05 21.95 0.30 0.582 625.20 9.18 87.23 12.77 13.67 0.15 0.426 581.50 8.54 95.77 4.23 10.00 0.08 0.312 242.90 3.57 99.34 0.66 7.32 0.01 0.000 44.90 0.66 100.00 0.00 0.00 Total 6808.40 Maximum Size 25 mm Nominal Maximum Size 0.25 mm

Semi-Log Gradation Curve 120,00 100,00 80.00 60.00 40.00 20.00 0.00 0.01 0.10 1.00 10.00 100.00 Sieve Size (Log Scale), mm % Passing

(b) 0.45 Gradation Chart 120.00 100.00 80.00 60.00 0.45 Power Curve Gradation Curve 40.00 20.00 0.00 0.000 0.500 1.000 1.500 2.000 2.500 3.000 3.500 4,000 4,500 Sieve Size (raised to the power 0.45), mm % Passing