7) The grading of three aggregates is given below. a) Calculate the percent passing for a combined aggregate which is a blend of 30% (by weight) aggregate A, 45% aggregate B and 25% aggregate C. b) Determine the fineness modulus of aggregate B. c) How much percent of fine aggregate having fineness modulus of 3.00 should be mixed with sample Aggregate B to decrease its fineness modulus to 4.50?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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7) The grading of three aggregates is given below.
a) Calculate the percent passing for a combined aggregate which is a blend of 30% (by weight)
aggregate A, 45% aggregate B and 25% aggregate C.
b) Determine the fineness modulus of aggregate B.
c) How much percent of fine aggregate having fineness modulus of 3.00 should be mixed with
sample Aggregate B to decrease its fineness modulus to 4.50?
% Passing
Aggregate B
Sieve size
Aggregate A
Aggregate C
Combined
Aggregate
1-1/2"
100
3/4"
100
56
3/8"
60
23
#4
100
40
#8
65
25
#16
45
12
#30
22
#50
11
#100
Transcribed Image Text:7) The grading of three aggregates is given below. a) Calculate the percent passing for a combined aggregate which is a blend of 30% (by weight) aggregate A, 45% aggregate B and 25% aggregate C. b) Determine the fineness modulus of aggregate B. c) How much percent of fine aggregate having fineness modulus of 3.00 should be mixed with sample Aggregate B to decrease its fineness modulus to 4.50? % Passing Aggregate B Sieve size Aggregate A Aggregate C Combined Aggregate 1-1/2" 100 3/4" 100 56 3/8" 60 23 #4 100 40 #8 65 25 #16 45 12 #30 22 #50 11 #100
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