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1. Given the following two aggregate gradations shown in Table 1. plot individually on a semi-log scale and determine which ASTM C33 size number is appropriate for each. following chaum in Tabl

1. Given the following two aggregate gradations shown in Table 1. plot individually on a semi-log scale and determine which ASTM C33 size number is appropriate for each. following chaum in Tabl

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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45 1. 2. Given the following two aggregate gradations shown in Table 1. plot individually on a semi-log scale and determine which ASTM C33 size number is appropriate for each. Give the following two aggregate gradations shown in Table 1, determine the best combined aggregate gradation using a 45 power curve. Include a neat, well-organized spreadsheet with at least three possible combinations in addition to the original gradations and state which combination you think is the most well-graded. Table 1. Aggregates for blending Sieve 1 in. % in. ½ in. 3/8 in. #4 #8 # 16 # 30 # 50 # 100 Percent Passing 100 80 60 80 40 60 20 40 20 0 Percent Passing 100 Aggregate 1 (% passing) 0 100 100 68 41 6 3.0 2.3 2.1 2.0 1.9 Aggregate 2 (% passing) 100 100 100 100 99 93 76 2 3 Sieve Size Raised to 0.45 Power Figure 1. Basis of 0.45 Power Chart (Source: Asphalt Institute SP-2) 45 14 1 Example: 4.75 mm sieve plots at (4.75) 0.45 = 2.02 OREK) ۹:۰۰ م | 0.5ك.ب/تا max size -maximum density graciation 0 0 075 3 6 1.18 2.36 4.75 9.5 12.5 19.0 Sieve Size, mm, Rased to 0.45 Power Figure 2. Maximum Density Gradation for 19mm Maximum Size (Source: Asphalt Institute SP-2)
Transcribed Image Text:45 1. 2. Given the following two aggregate gradations shown in Table 1. plot individually on a semi-log scale and determine which ASTM C33 size number is appropriate for each. Give the following two aggregate gradations shown in Table 1, determine the best combined aggregate gradation using a 45 power curve. Include a neat, well-organized spreadsheet with at least three possible combinations in addition to the original gradations and state which combination you think is the most well-graded. Table 1. Aggregates for blending Sieve 1 in. % in. ½ in. 3/8 in. #4 #8 # 16 # 30 # 50 # 100 Percent Passing 100 80 60 80 40 60 20 40 20 0 Percent Passing 100 Aggregate 1 (% passing) 0 100 100 68 41 6 3.0 2.3 2.1 2.0 1.9 Aggregate 2 (% passing) 100 100 100 100 99 93 76 2 3 Sieve Size Raised to 0.45 Power Figure 1. Basis of 0.45 Power Chart (Source: Asphalt Institute SP-2) 45 14 1 Example: 4.75 mm sieve plots at (4.75) 0.45 = 2.02 OREK) ۹:۰۰ م | 0.5ك.ب/تا max size -maximum density graciation 0 0 075 3 6 1.18 2.36 4.75 9.5 12.5 19.0 Sieve Size, mm, Rased to 0.45 Power Figure 2. Maximum Density Gradation for 19mm Maximum Size (Source: Asphalt Institute SP-2)
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