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Compute the cumulative percent retained on, and percent passing each sieve.

Compute the cumulative percent retained on, and percent passing each sieve.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Compute the cumulative percent retained on, and percent passing each sieve.

The following illustration the calculations of the fineness modulus: Sieve No. Weight Retained Cumulative Weight % Cumulative Retained Retained 4 30 30 9.7 8. 40 70 22.6 10 30 100 --* 16 30 130 42.0 30 35 165 53.3 50 45 210 67.8 80 40 250 --* 100 50 300 96.8 Pan 10 310 100 Fineness modulus of sand = 9.7 + 22.6 + 42.0 + 53.3 + 67.8 + 96.8 = 2.92 100
Transcribed Image Text:The following illustration the calculations of the fineness modulus: Sieve No. Weight Retained Cumulative Weight % Cumulative Retained Retained 4 30 30 9.7 8. 40 70 22.6 10 30 100 --* 16 30 130 42.0 30 35 165 53.3 50 45 210 67.8 80 40 250 --* 100 50 300 96.8 Pan 10 310 100 Fineness modulus of sand = 9.7 + 22.6 + 42.0 + 53.3 + 67.8 + 96.8 = 2.92 100
U.S Standard Sieve Size Clear Opening (in.) No.100 0.0059 No.50 0.0117 No.30 0.0232 No.16 0.0469 No. 8 0.0937 No. 4 0.187 3/8" 0.375 ½" (half size) 0.500 0.750 1 in. (half size) 1.000 1½ in. 1.500 Sometimes closer sizing than is given by the standard series is desired, in which case “half size or odd" sizes are employed; the ½ in. and 1 in. shown are half size. Coarse aggregate is usually considered to be larger and fine aggregates smaller than #4 sieve. Thus all series need to be used physically in the nest but are still considered in the analysis. For example, sieve larger than 3/8 in. is not used for the sand and sieve smaller than No.8 are seldom used for gravel.
Transcribed Image Text:U.S Standard Sieve Size Clear Opening (in.) No.100 0.0059 No.50 0.0117 No.30 0.0232 No.16 0.0469 No. 8 0.0937 No. 4 0.187 3/8" 0.375 ½" (half size) 0.500 0.750 1 in. (half size) 1.000 1½ in. 1.500 Sometimes closer sizing than is given by the standard series is desired, in which case “half size or odd" sizes are employed; the ½ in. and 1 in. shown are half size. Coarse aggregate is usually considered to be larger and fine aggregates smaller than #4 sieve. Thus all series need to be used physically in the nest but are still considered in the analysis. For example, sieve larger than 3/8 in. is not used for the sand and sieve smaller than No.8 are seldom used for gravel.
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